Archivio seminari

Date: 2009-12-22 11:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Aldo Stefano Bonomo
Laboratoire d'Astrophysique de Marseille France -- INAF-Osservatorio Astrofisico di Catania
Detection and modelling of transiting planets from the CoRoT space mission

Date: From 2009-12-18 11:45:00 to 2009-12-18 12:45:00
Dr. Salvatore Mirabella
CNR-INFM MATIS Italy
Nano Four PV - Group IV based quantum structures for future Photovoltaics
Abstract/Calendar
Photovoltaics (PV) is enormously rising in importance worldwide, both for the widespread economic growth and for the scientific challenges. Despite the world crisis, PV market currently grows at a rate which recalls the Moore's law in microelectronics, since the PV modules production is doubling every 18-24 months. Photovoltaics drains a lot of interests also by material scientists. In fact, the efficiency in the conversion of sunlight into electricity can increase as a result of better understanding the conversion limiting factors and innovations in the cell design. Conventional materials are able to convert less than 20% of the incoming solar irradiation, while advanced solutions promise above 50% conversion. Among these new directions, nanotechnology, with its advanced maturation, allows new and smart opportunities, such as the chance of modulating the light absorption of the active material onto the solar spectrum, or the option to tailor the solar photons upon the conversion capability of the cell. Indeed, group IV nanostructured materials are attractive because of the easier integration with the present microelectronic technologies. In this talk, the photon absorption in Si or Ge quantum dots (QDs) embedded in SiO2 will be presented and compared for future PV application. Two fabrication techniques for the Si QDs will be compared (plasma-enhanced chemical vapor deposition and magnetron co-sputtering) in terms of light absorption. In any case, by increasing the Si content a reduction in the optical bandgap has been always recorded, pointing out that the density of Si-Si bonds has a crucial role in the absorption process. The structural phase of these Si-Si bonds also affects the photon absorption, since at higher temperatures the amorphous-crystalline transition of the Si QD is associated to an increase of the optical bandgap. At last, by adjusting the Si content and the annealing temperature, a full matching between the rainbow energy and the Si QD optical bandgap can be obtained. Still, the transport of the photo-generated carriers plays an important role, and only the Si richer systems, after a proper doping, exhibited a low enough resistivity to be implemented in PV devices. On the other hand, Ge QDs represent a hopeful route towards PV application too, because of the higher absorption in comparison to Si QDs. The confinement effect on the light absorption process induces an optical bandgap around 1.5 eV, well higher than that of not-confined Ge (~ 0.7 eV), but lower than that of Si QDs. Unfortunately, the thermal processes on Ge QDs affects their absorption ability, causing a reduction of the absorption coefficient (due to the amorphous-crystalline transition) and also a detrimental Ge out-diffusion due to surface oxidation. An overview of all these phenomena will be given.
Date: 2009-12-18 11:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula I
Dr. Emiko Hiyama
Strangeness Nuclear Physics Laboratory, RIKEN, Tokyo Japan
Gauss expansion method: Application to hypernuclear physics

Date: From 2009-12-17 15:30:00 to 2009-12-17 16:30:00
Dr. Carmelo Papa
STMicroelectronics Italy
Ricerca avanzata presso la STmicroelectronics
Abstract/Calendar
Nella ricerca tecnologica delle imprese microelettroniche, al di la della spinta verso dispositivi con strutture più piccole e più integrate, in cui impera la legge di Moore, esistono aree di interesse, altrettanto importanti, che si focalizzano sui nuovi materiali, sull'integrazione eterogenea e di sistema. Comunemente sono denominate "other than Moore" o "more than Moore" e offrono opportunità di rilievo nella sfida mondiale dell'innovazione. La STmicroelectronics, e in particolare quella di Catania, è una realtà industriale fortemente impegnata su questo fronte"
Date: From 2009-12-17 12:48:00 to 2009-12-17 13:48:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Auditorium
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Date: From 2009-12-14 14:00:00 to 2009-12-17 13:30:00
Location: Facolta' di Ingegneria, Edificio Didattica, V.le A. Doria, 6, Aula Informatica COMETA (D24)
Dr. Antonio Calanducci
INFN Catania Italy
Corso di formazione INFN su Mac OS X (e iWork)
Abstract/Calendar
L' Istituto Nazionale di Fisica Nucleare (INFN), sezione di Catania, organizza un corso su Mac OS X (e iWork), proposto dalla Commisione Calcolo e Reti di INFN, dal 14 al 17 Dicembre 2009 presso l'aula informatica COMETA (D24) della Facoltà di Ingegneria. Il corso mira a dimostrare le potenzialità del sistema operativo Mac OS X e di come questo possa aumentare la produttività personale imparandone ad utilizzare gli strumenti a disposizione, con sessioni pratiche. Durante l'evento, sarà presentato il sistema operativo Mac OS X attraverso l'illustrazione di concetti, dimostrazioni live ed esercitazioni pratiche da parte dei partecipanti. Alla fine del corso ogni partecipante sarà in grado di utilizzare produttivamente sistemi basati su Mac OS X nel proprio lavoro di tutti i giorni. In particolare, il corso si articola in tre sessioni: base, avanzata e applicativi per l'ufficio. Il corso avrà inizio giorno 14 Dicembre alle ore 14:00 e terminerà il 17 Dicembre alle ore 13:30. La versione del sistema operativo che sarà utilizzata é l'ultima release di Mac OS X, Snow Leopard (10.6), di cui verranno presentate le ultime novità. Il corso è destinato ai dipendenti INFN di tutta Italia (ricercatori, tecnologi, amministrativi, tecnici, etc). Ogni participante/coppia avrà a disposizione un sistema con Mac OS X, eventualmente da noi fornito, su cui potra' provare praticamente, durante le sessioni di hands-on, i concetti appresi, sotto la supervisione dei tutors. La partecipazione è comunque estesa ad ESTERNI, quali studenti, dottorandi, ricercatori, docenti, borsisti, assegnisti, dipendenti, etc delle Università italiane e degli altri Enti di Ricerca, FINO A ESAURIMENTO POSTI. Per partecipare è OBBLIGATORIO registrarsi (http://agenda.infn.it/confRegistrationFormDisplay.py/display?confId=1748), indicando se dipendenti INFN o esterni. Per ulteriori informazioni, contattare antonio.calanducci@ct.infn.it. L'agenda dettagliata del corso si trova su http://agenda.infn.it/conferenceOtherViews.py?view=cdsagenda&confId=1748#1 Di seguito il programma delle tre sessioni: Sessione base (14 pomeriggio - 15 mattina) Panoramica su Mac OS X Gestire i File Systems con Finder Organizzare lo spazio di lavoro ed effettuare ricerche Gestire le applicazioni Gestire lo "switch" da Windows Mac OS X e Internet Organizzarsi con Mac OS X Sessione avanzata (15 pomeriggio - 16 mattina) Gestire i backup con "la macchina del tempo" Configurare e personalizzare il sistema Condividere documenti Automatizzare le operazioni Virtualizzazione e Boot Camp Le utilities di sistema Sessione office (16 pomeriggio - 17 mattina) Creare presentazioni "impressive" con Keynote Realizzare documenti con Pages Gestire fogli di lavoro con Numbers Creare la proprio homepage con iWeb Le alternative per l'ufficio Mac OS X e la multimedialità
Date: From 2009-12-09 15:30:00 to 2009-12-09 18:30:00
Location: Scuola Superiore di Catania, Via S. Nullo, 5/i, Catania, Chiedere in portineria
Seminari dottorandi in Nanoscienze XXIII ciclo
Abstract/Calendar
Jens Eriksson Nanoscale transport properties at 3C-SiC interfaces Sushant Sonde Transport properties in graphene for electronics applications Ioannis Deretzis Effects of disorder on the conduction properties of graphene based systems.
Date: From 2009-12-09 13:50:00 to 2009-12-09 16:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Presentazione delle Iniziative Specifiche INFN della Sezione di CT e del Laboratorio Nazionale del Sud
Abstract/Calendar
In occasione della visita del neo presidente della CSN4 dell' INFN G. Martinelli, Mercoledi' 9 Dicembre, si terra' una breve presentazione delle Iniziative Specifiche INF sia della Sez. CT sia del LNS secondo il seguente programma:
13.50
D. Zappala'         Sez.CT
M. Consoli          CT21  (Vacuum structure in QFT)
E.G. Lanza          CT31  (Dynamics of many body systems)
A. Rapisarda        MI41 &TO61 (long range interacting systems, complex systems )
M. Baldo            CT51 &OG51 (Stelle compatte, materia adronica ad alta densita')
                                            
15.00    
M. Colonna          LNS & PI32 (Fasci esotici)
M. Di Toro          LS31 (EoS)
V. Greco            RM31 (Fenomenologia QGP)

Date: From 2009-12-09 09:00:00 to 2009-12-11 14:00:00
Location: LNS Aula Congressi (nuova foresteria),
First EURISOL User Group topical meeting - The formation and structure of r-process nuclei, between N=50 and 82 (including 78Ni and 132Sn areas)
Abstract/Calendar
First EURISOL UG topical meeting: The formation and structure of r-process nuclei, between N=50 and 82 (including 78Ni and 132Sn areas). The venue will be Catania and the meeting will be jointly organized by us (UEC) and from the INFN-LNS, Sezione di Catania and Dipartimento di Fisica. Catania has been chosen because it has already a very active group in Nuclear Astrophysics, and hosts the LNS, one of the laboratories in the EC we wish to encourage and support in their Nuclear Physics activities
Date: 2009-11-24 11:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Federico Spada
Sezione astrofisica, Dipartimento di Fisica e Astronomia, Università di Catania Italy
Spin-down evolution of solar-type stars and rotational coupling in stellar radiative interiors.

Date: From 2009-11-17 15:30:00 to 2009-11-17 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Emanuele Rimini
Dipartimento di Fisica & Astronomia - Università degli Studi di Catania Italy
Dalla scoperta scientifica all'applicazione tecnologica : DVD, HARD DISK, PEN DRIVE
Abstract/Calendar
La descrizione del funzionamento di questi tre comunissimi dispositivi è utilizzata per evidenziare l'apporto determinante della ricerca di base e delle relative scoperte (materiali a variazione di fase, magneto resistenza gigante ed effetto tunnel) nello sviluppo tecnologico. Questi tre esempi chiariscono anche la difficoltà nel voler separare la ricerca applicata da quella fondamentale, come testimoniato dai diversi premi Nobel, non ultimo quello assegnato nel 2009.
Date: From 2009-11-16 11:00:00 to 2009-11-16 12:00:00
Location: IMM-CNR, Catania, Sala Campisano
Prof. Caudenzio Meneghesso
Università di Padova Italy
Long-Term Stability of Gallium Nitride High Electron Mobility Transistors: a Reliability Physics Approach
Abstract/Calendar
Several groups have demonstrated nitride-based High Electron Mobility Transistors with excellent RF output power, with a constant increase in performances. However, despite the large efforts spent in the last few years, and the progress in MTTF values, reliability of GaN HEMTs and MMICs still has to be fully demonstrated, due to the continuous evolution of adopted processes and technologies, and to the lack of information concerning failure modes and mechanisms. The role of temperature in promoting GaN HEMT failure is still controversial, and the factors accelerating degradation are still largely unknown. The talk will propose a methodology for the analysis of failure modes and mechanisms of GaN HEMTs, based on the extensive characterization of deep levels using Deep Level Transient Spectroscopy and pulsed measurements, on the detailed analysis of electrical characteristics, and on comparison with two-dimensional device simulations. Results of failure analysis using various microscopy and spectroscopy techniques will be presented and failure mechanisms observed at the high electric field values typical of these devices will be reviewed.
Date: 2009-11-13 12:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Daniela Billi
Dipartimento di Biologia, Università degli Studi di Roma Tor Vergata Italy
Sopravvivenza di cianobatteri in ambienti desertici terrestri ed extraterrestri

Date: From 2009-11-11 16:30:00 to 2009-11-11 18:00:00
Location: Dip. Fisica e Astronomia and LNS, Catania, Aula F
Prof. Pasquale Tomasello
UniCt, DFA Italy
Robert Musil e la Scienza(h.i.e Fisica
Abstract/Calendar
Verrà presentato Robert Musil, scrittore, filosofo dal forte background scientifico. Uno dei massimi scrittori del Secolo scorso la cui scrittura e sensibilità letteraria e filosofica è continumente influenzata anche stilisticamente dallo Zeitgeist scientifico e tecnico in cui nacque e maturò la sua arte. A seguire verranno letti e commentati passi della sua produzione letteraria in cui più evidenti risultano le sue convinzioni e posizioni epistemologiche sulla Fisica e la Matematica: 1) I numeri immaginari dal suo romanzo d'esordio die Verwirrungen des Zoeglings Toerless; 2)Sul senso di realtà e possibilità, La Scienza sorride sotto i baffi, ovvero incontro esauriente col male, da Der Mann ohne Eigenschaften, il suo incompiuto lavoro principale.3) Il compito che ci proponiamo, da Beitrag zur Beurteilung der Lehren Machs
Date: From 2009-11-11 10:00:00 to 2009-11-11 11:00:00
Location: IMM-CNR, Catania, Sala Campisano
Prof. Stefan Lànyi
Institute of Physics University of Bratislava Slovacchia
Charge-transient-based analysis at the nanoscale
Abstract/Calendar
After 30 years from the invention of the first scanning probe microscope (SPM), i.e. the tunnel effect microscope, and 20 from the diffusion of these microscopes, morphological but also other measurement methods are available at low cost in all the University labs for routine characterisation. The SPM labs at the Institute for Microelectronics and Microsystems in Catania is an European open facility, operating in an international contest since 15 years, equipped with three state of the art fully accessorized SPMs, and developing beyond state of the art innovative features, smart and novel ideas and groundbreaking methodologies in advanced semiconductor research. In this contest also a new collaboration with the Institute of Physics of the University of Bratislava has been established. Prof. Štefan Lányi from will present a seminar on a promising nanoscale analytic method, furthermore the Isothermal Charge-Transient Spectroscopy will be presented. As a modification of DLTS, it renders analysis and perhaps also identification of electrically active defects possible. Its capabilities as well as limitations will be discussed. In contrast to capacitance-based methods, it can be applied also to dielectrics. Students are particularly welcome. For more information ask to Filippo Giannazzo (filippo.giannazzo@imm.cnr.it)
Date: 2009-11-09 11:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Marco Fulle
Osservatorio Astronomico di Trieste Italy
Missione Rosetta: modelli e scenari osservativi

Date: From 2009-11-06 11:45:00 to 2009-11-06 13:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Francesco Ruffino
Dipartimento di Fisica e Astronomia and MATIS, Università di Catania Italy
Scanning Probe Microscopies: In Touch with Atoms
Abstract/Calendar
Since their invention, scanning probe microscopies (scanning tunneling microscopy, STM, and atomic force microscopy, AFM) emerged as powerful and versatile techniques for atomic and nanometer-scale characterization and manipulation of a wide variety of organic and inorganic systems. Nowadays, scanning probe microscopies have a strong impact on nanometer scale science and technology since they are not only the "eyes" to image and see atomic and molecular structures but also the "fingers" to manipulate and modify such structures. In this talk, after a short historical review on the development of scanning probe microscopies, the basic operation principles of STM (constant height and constant current modes) and AFM (static and dynamic modes) will be illustrated. The main part of the talk will be focused on the disruptive potentialities of STM and AFM in characterization and manipulation of atomic and molecular systems. The wide range applications of STM and AFM in terms of nano-characterization (topographic, electrical, magnetic, chemical) and nano-fabrication (nanolithography, single atom and molecule manipulation) will be illustrated by several examples that are writing the present and the future of the nanometer scale science and technology. In particular, strengths and weaknesses of both techniques will be highlighted. Finally, potentialities of the new STM/AFM Veeco-Innova system, recently installed at the Department of Physics and Astronomy of the University of Catania, will be illustrated. In particular, starting from some preliminary results obtained by the Veeco-Innova system on various samples (imaging of metallic nano- and micro-structures on various substrates, of polymeric systems and much more), its strengths and limits will be discussed.
Date: From 2009-11-03 10:17:00 to 2009-11-03 11:17:00
Location: Hotel Excelsior, Catania, Aula Conferenze
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Abstract/Calendar
abstract
Date: From 2009-10-27 16:30:00 to 2009-10-27 17:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Michael Szell
Complex Systems Research Group; HNO; Medical University of Vienna; Austria Austria
Measuring the evolution of socio-economical structure in an online game
Abstract/Calendar
The analysis of high-frequency log files of a massive multiplayer online game currently played by thousands of users allows to assess socioeconomical dynamics over the past three years. We are able to relate social and economic behavior of the players to a series of stylized facts known to exist in the real world. In particular, we analyze the evolution of underlying growing social networks such as constituted by friends and enemies, communication networks, and measure their characteristic properties. Our data confirm the recently observed phenomena of shrinking diameters and growing average degrees. Clustering coefficients of friend-networks decay in time, while those of enemies grow. A motif analysis displays further striking differences in topological structure between friend and enemy networks. We compare our findings with literature on real world data. With this setup we try to establish a "laboratory" for economical behaviour.
Date: From 2009-10-23 17:00:00 to 2009-10-23 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. N. H. March
Oxford University, Oxford UK
On the variational validity of four widely used non-relativistic energy density functionals for atoms and molecules

Date: From 2009-10-20 11:30:00 to 2009-10-20 12:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Thomas Krauss
University of St. Andrews UK
Slow light enhanced switches, modulators and nonlinear functions in silicon photonic crystals

Date: From 2009-10-15 17:00:00 to 2009-10-15 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. N. H. March
Oxford University, Oxford UK
Some pointers towards a future orbital-free density functional theory of many-body Fermion fluids

Date: 2009-10-14 11:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Prof. Alexander Tielens
Leiden Observatory Netherlands
Interstellar PAHs and Star Formation
Abstract/Calendar
Strong IR emission features at 3.3, 6.2, 7.7, 8.6, and 11.2 µm are a common characteristic of regions of massive star formation in the Milky Way and nearby galaxies and out to redshifts of ~3. These features are carried by large (∼ 50 C-atom) Polycyclic Aromatic Hydrocarbon molecules, which are pumped by the strong FUV photon flux from these stars. ISO/SWS and Spitzer/IRS studies have revealed the richness of the interstellar IR emission spectrum and the variations therein. These variations reflect variations in the physical conditions of the emitting regions. Over the last 10-20 years, extensive experimental and theoretical studies have elucidated the intrinsic infrared properties of large PAH molecules and their dependence on the molecular characteristics. We are now reaching a stage where we can use the observations of the IR emission spectrum as diagnostic tools to determine the physical conditions in the emitting regions of particular regions of star formation. Observations have shown that PAH molecules are abundant and ubiquitous in the interstellar medium. Conversely, PAHs may also be a dominant "force" in the interstellar medium. In particular, PAHs dominate the photoelectric heating of interstellar gas and thereby shape the phase (cloud/intercloud) structure of the ISM. PAHs are also the dominant negative charge carriers inside dense molecular cloud cores and, hence, regulate the charge balance of molecular gas. Thus, PAHs control the ambipolar diffusion process and the onset of gravitational collapse. Because the IR emission features dominate the IR spectrum of regions of massive star formation, these bands are often used as proxies to determine the importance of star formation on galactic scales. Specifically, the importance of star formation versus AGN activity for the luminosity source of ULIRGs is based upon a quantitative interpretation of the observed PAH emission from galactic nuclei. I will review these different aspects of interstellar IR spectra, the extensive laboratory studies on the spectroscopic and chemical properties of PAHs, their relationship to the intrinsic properties of PAHs, the role of these PAHs in shaping the universe around us - in particular through the star formation process - and the use of PAH emission spectra as quantitative indicators of star formation.
Date: From 2009-10-13 15:30:00 to 2009-10-13 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Dr. Angelo Pagano
INFN- Sez. di Catania Italy
LA LEGGE DELL'ENTROPIA IN RELAZIONE AL PROBLEMA AMBIENTALE
Abstract/Calendar
Il noto economista Georgescu Roegen ha proposto (1970) di integrare la teoria economica con il concetto di entropia. Questo importante concetto che in fisica ha avuto una storia molto tormentata (che a mio avviso non è affatto terminata!) è indispensabile in campo economico. Si tenterà esporre il ''problema ambientale'' in termini di relazione esistente tra economia e fisica. I cosiddetti economisti classici ( tra cui Smith, Ricardo e Marx ) pensavano che la scienza economica dovesse rifarsi ai metodi della fisica. Ma, la loro opera di rinnovamento è rimasta sostanzialmente incompiuta. Di fatto, alle loro analisi, non è seguita una vera rivoluzione del pensiero economico. Una teoria economica più recente formulata con metodi più vicini a quelli della fisica, si deve al fisico matematico, J. Von Neumann (1950). Un modello più semplice dovuto all'economista Piero Sraffa (1960) si presta più facilmente ad uno sviluppo dell'economia in senso dinamico (predittivo in funzione del tempo), come ha mostrato il fisico Salvatore Notarrigo dell'università di Catania (1980). E' impossibile ripercorrere in breve questo cammino in modo esauriente. Pertanto, si daranno solo alcuni risultati principali mettendo in evidenza gli aspetti innovativi in relazione alle urgenze del problema ambientale. Emergerà come non esiste un ''problema energetico'', in senso stretto; ma , bensì esiste un ''problema entropico'' dovuto agli esorbitanti consumi energetici che compromettono la vita sul pianeta.
Date: From 2009-10-09 11:45:00 to 2009-10-09 12:45:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Roberto Lo Savio
MATIS CNR-INFM and Dipartimento di Fisica e Astronomia, Università di Catania Italy
Er-Er interactions in yttrium-erbium compounds thin films
Abstract/Calendar
Er-doped materials are extensively studied in Si-based photonics, owing to the capability of Er ions to emit and absorb photons at discrete wavelengths, extending from the ultraviolet to the infrared. However the maximum Er amount that can be introduced as a dopant in a solid host is limited to about 10^20 at/cm3 owing to the low solid solubility. Such a limit can be overcome in mixed Y-Er compounds: given the strong similarities between Y and Er compounds, the Er amount can be varied with continuity in a wide range, extending from the low values typical of a doping condition to the extreme values of Er compounds (about 10^22 at/cm3). However the Er content increase certainly leads to the occurrence of Er-Er interactions that determine a strong modification of the emitting properties of the Er ions. We have studied the influence of such interactions in both oxide Y(2-x)ErxO3 and disilicate Y(2-x)ErxSi2O7 thin films, grown on c-Si substrates by rf magnetron co-sputtering. In both compounds the existence of two well-defined Er concentration regimes (defined as Er-doping and Er compound) has been demonstrated, with a threshold value of about 5*10^21 Er/cm3. Above this limit, the interactions between the excited Er ions and the Er population in the ground state lead to a fast depletion of the high-energy levels with a consequent refilling of the low-energy ones. Although the interactions occurring in both materials are exactly the same, their effects are different. Y(2-x)ErxO3 is a low phonon energy host, and then non-radiative phononic decays have low rates: Er-related optical emission both in the visible and in the infrared regions is then observed. In the doping regime a population inversion condition between the first two excited levels is achieved, opening the route for the realization of optical amplifiers, operating at 2.75 um. However when the Er amount is increased (compound regime) the interactions have a detrimental effect, since the condition of population inversion is lost. In the high-phonon energy host Y(2-x)ErxSi2O7 only Er-related emission at 1.54 um is observed for any x value. In this material the Er-Er interactions are demonstrated to produce a quantum cutting process in which it is possible to excite several Er ions with a single incoming excitation photon. In particular, in the Er-richest film (Er2Si2O7) maximum quantum cutting efficiencies of 400 % have been reached. In this regime this material can be exploited therefore in Ge solar cells, thanks to the generation of several infrared photons at expenses of only one incident visible photon.
Date: From 2009-10-05 00:00:00 to 2009-10-09 00:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Atrio a pianterreno
Esposizione poster lavoro di tesi dottorato XXII Ciclo
Abstract/Calendar
Durante la settimana dal 5 al 9 Ottobre, nell'atrio del Dipartimento di Fisica & Astronomia, saranno esposti i poster realizzati dagli studenti del Dottorato di Ricerca in Fisica del XXII Ciclo aventi a tema il proprio lavoro di tesi.
Date: 2009-09-24 11:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Est
Dr. Jan Brand
INAF - Istituto di Radioastronomia - Bologna Italy
ALMA e l'ALMA Regional Centre italiano
Abstract/Calendar
L'Atacama Large Millimeter/submilliter Array (ALMA) è in costruzione nel deserto di Atacama in Cile, a un'altitudine di 5000m. Il progetto rappresenta una collaborazione fra Europa, paesi nordamericani (USA e Canada), paesi dell'Asia orientale (Giappone e Taiwan), e Cile. La combinazione fra diversi fattori, quali un sito ad alta trasmissione atmosferica, una vasta superficie di raccolta, un ampio spettro di frequenze (inizialmente 84 - 950 GHz), una larga banda istantanea, ricevitori di altissima qualità, e backends flessibili, forniscono ad ALMA il potenziale per ottenere grandi progressi in molte branche dell'astronomia. L'array principale consiste di 54 antenne da 12m, che possono essere posizionate in diverse configurazioni, i cui diametri vanno dai 150m ai 18km. Inoltre, l'Atacama Compact Array (ACA), formato da 4 antenne da 12m e 12 antenne da 7m, fornisce le baselines corte, le osservazioni total power e le immagini a grande campo. Le prime osservazioni scientifiche con un array parziale (accompagnate da un call for proposals) sono previste per il 2011. Presenterò una panoramica del progetto ALMA e del suo stato attuale, e ne descriverò le operazioni. Parlerò anche dell'infrastruttura che i paesi partecipanti stanno costruendo per fornire supporto agli utenti. In particolare, descriverò il contributo europeo, con particolare enfasi sull'ALMA Regional Centre italiano, il centro di supporto che stiamo creando all'Istituto di Radioastronomia di Bologna.
Date: 2009-09-22 11:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula EST
Prof. Nino Panagia
Space Telescope Science Institute, Baltimore USA
The best of HST

Date: From 2009-09-18 09:30:00 to 2009-09-19 12:30:00
Location: LNS Aula Congressi (nuova foresteria),
Nuclear Dynamics from giant resonances to quark deconfinement - Workshop in honor of the 70th birthday of Massimo Di Toro

Date: 2009-09-17 11:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Est
Prof. Martin Stift
Institut für Astronomie, Università Wien Austria
Stratified chemical abundances in Ap stars

Date: 2009-09-15 11:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula EST
Dr. Joanna Molenda Zacowicz
Institute of Astronomy - University of Wroclaw Polonia
Science with the Kepler mission III. Kepler Data Release and Publication Policy
Abstract/Calendar
In the series of three seminars about the Kepler space telescope, I resume the background of the Kepler space mission and explain its present status. Then, I show first results of the analysis of the Kepler data obtained for the transiting planet HAT-7 (Borucki et a. 2009, Science) and I introduce the Kepler Asteroseismic Consortium, KASC. The asteroseismic part of the Kepler mission will be discussed by me in more detail, as well as will be the results of the ground-based observations of Kepler asteroseismic targets. Finally, I will explain the rules concerning the analysis of Kepler data, which will be delivered to the KASC very soon, and the policy of publication based on Kepler magnitudes.
Date: 2009-09-11 11:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Est
Dr. Richard Treffers
Starman Systems, LLC Alamo USA
Telescope Automatization

Date: 2009-09-09 11:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Est
Dr. Joanna Molenda Zacowicz
Institute of Astronomy - University of Wroclaw Polonia
Science with the Kepler mission II. Ground based observations
Abstract/Calendar
In the series of three seminars about the Kepler space telescope, I resume the background of the Kepler space mission and explain its present status. Then, I show first results of the analysis of the Kepler data obtained for the transiting planet HAT-7 (Borucki et a. 2009, Science) and I introduce the Kepler Asteroseismic Consortium, KASC. The asteroseismic part of the Kepler mission will be discussed by me in more detail, as well as will be the results of the ground-based observations of Kepler asteroseismic targets. Finally, I will explain the rules concerning the analysis of Kepler data, which will be delivered to the KASC very soon, and the policy of publication based on Kepler magnitudes.
Date: 2009-09-07 11:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Est
Dr. Stephen White
Space Vehicles Directorate Air Force Research Laboratory Hanscom Air Force Base, MA, USA
Solar Astronomy at Millimeter Wavelengths
Abstract/Calendar
The millimeter domain has been an under-utilized diagnostic for solar physics a situation that is likely to change with the advent of ALMA. This talk will review past work in this field, acknowledge the challenges of working at millimeter wavelengths, and discuss the promising science that ALMA will address. Two quite different areas are likely to be the main topics: the acceleration of particles to the highest energies, and the heating of the solar chromosphere. Solar flares produce emission at mm wavelengths and there are two very puzzling results from high frequency observations that don't fit our current picture of acceleration. Quiet-sun observations of the solar atmosphere are directly sensitive to temperature fluctuations in the chromosphere, and the combination of high time resolution and excellent spatial resolution that ALMA will provide will be crucial for studying the heating mechanism. Both these topics have broader application to astrophysics in general.
Date: 2009-09-04 11:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Est
Dr. Joanna Molenda Zacowicz
Institute of Astronomy - University of Wroclaw Polonia
Science with the Kepler mission
Abstract/Calendar
In the series of three seminars about the Kepler space telescope, I resume the background of the Kepler space mission and explain its present status. Then, I show first results of the analysis of the Kepler data obtained for the transiting planet HAT-7 (Borucki et a. 2009, Science) and I introduce the Kepler Asteroseismic Consortium, KASC. The asteroseismic part of the Kepler mission will be discussed by me in more detail, as well as will be the results of the ground-based observations of Kepler asteroseismic targets. Finally, I will explain the rules concerning the analysis of Kepler data, which will be delivered to the KASC very soon, and the policy of publication based on Kepler magnitudes.
Date: From 2009-07-23 16:00:00 to 2009-07-23 17:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula Azzurra
Prof. Pierre Capel
Université Libre de Bruxelles Belgium
Theoretical description of breakup reactions of halo nuclei
Abstract/Calendar
Since their discovery in the mid-80's halo nuclei have attracted many theoretical and experimental studies. These nuclei indeed exhibit a very peculiar structure: They can be seen as a core containing most of the nucleons to which one or two neutrons are loosely bound. These valence neutrons have a high probability of presence at large distances from the other nucleons, and form a sort of halo around the core. Due to their short lifetime, these nuclei cannot be studied with usual spectroscopic techniques, and one must resort to indirect methods like breakup reactions. In these reactions, the core-halo structure dissociates through interaction with a target. The extraction of reliable structure information from these measurements requires a precise reaction model coupled to an accurate description of the projectile. In this seminar, I will present the model we have developed and analysed in Brussels to describe successfully reactions involving one-neutron halo nuclei: the Dynamical Eikonal Approximation (DEA) [1]. I will also compare this DEA to another reaction model developed by the Pisa group [2] that we have baptised the Couclomb Corrected Eikonal approximation (CCE) [3]. This model, being much less time consuming, is particularly well suited to analyse the dissociation of two- neutron halo nuclei [4].
Date: 2009-07-15 11:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Mrs. Simona Scollo
Istituto Nazionale di Geofisica e Vulcanologia (Sezione di Catania) Italy
Previsione e monitoraggio della dispersione delle ceneri vulcaniche

Date: From 2009-07-14 19:00:00 to 2009-07-14 20:00:00
Location: Scuola Superiore di Catania, Via S. Nullo, 5/i, Catania, Aula Magna
Prof. Mario Natiello
Centre for Mathematical Sciences, Lund University Sweden
La Malattia Degli Italiani
Abstract/Calendar
Si presenta una rassegna storica ed una interpretazione con metodi di dinamica di popolazioni stocastica della epidemia di Febbre Gialla avvenuta a Buenos Aires (Argentina) nel 1871.
Date: From 2009-07-08 15:00:00 to 2009-07-10 16:30:00
Location: Scuola Superiore di Catania, Via S. Nullo, 5/i, Catania, Aula Magna
Prof. Leon Chua
Electrical Engineering and Computer Sciences Department - University of California, Berkeley USA
Analytical theory of Wolfram's new kind of science
Abstract/Calendar
Calendar: * Mercoledì 8 Luglio 2009 - 15.00-16.30 - "Analytical theory of Wolfram's new kind of science - Part I" * Giovedì 9 Luglio 2009 - 11.00-12.30 - "Analytical theory of Wolfram's new kind of science - Part II" * Giovedì 9 Luglio 2009 - 15.00-16.30 - "Analytical theory of Wolfram's new kind of science - Part III" * Venerdì 10 Luglio 2009 - 15.00-16.30 - "Analytical theory of Wolfram's new kind of science - Part IV"
Date: From 2009-07-07 11:00:00 to 2009-07-08 12:30:00
Location: Scuola Superiore di Catania, Via S. Nullo, 5/i, Catania, Aula Magna
Prof. Leon Chua
Electrical Engineering and Computer Sciences Department - University of California, Berkeley USA
Memristors: 37 years later
Abstract/Calendar
Abstract: Anyone who ever took an electronics book will be familiar with the fundamental passive circuit elements: the resistor, the capacitor and the inductor. In 1971, starting from symmetry arguments Prof. L. Chua reasoned that there should be a fourth fundamental element, which was called memristor (short for memory resistor). Unlike those three elements, which are allowed in linear time-invariant system theory, memristors are nonlinear and may be described by any of a variety of time-varying functions of electrical charge. It has been showed that such an element has many interesting and valuable circuit properties. Memristance arises naturally in nanoscale systems in which solid-state electronic and ionic transport are coupled under an external bias voltage. These results serve as the foundation for understanding a wide range of hysteretic current-voltage behaviour observed in many nanoscale electronic devices. On April 30 2008, after 37 years, a team at HP Labs announced the development of a switching memristor. These devices are being developed for application in nanoelectronic memories, computer logic, and neuromorphic computer architectures. Reference: The missing memristor found - Dmitri B. Strukov, Gregory S. Snider, Duncan R. Stewart and R. Stanley Williams - Nature 453, 80-83 (1 May 2008) Calendar: * Martedì 7 Luglio 2009 - 11.00-12.30 "Memristors: 37 years later - Part I" * Mercoledì 8 Luglio 2009 - 11.00-12.30 "Memristors: 37 years later - Part II"
Date: 2009-07-03 11:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Aldo Stefano Bonomo
Laboratoire d'Astrophysique de Marseille France
News from the CoRoT space mission: latest planetary candidates, transit modelling and follow up observations

Date: 2009-07-01 11:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Mrs. Gulnur Dogan
Aarhus Asteroseismology Center, University of Aarhus, Department of Physics and Astronomy Denmark
Asteroseismic Modelling of Sun-like Stars
Abstract/Calendar
Asteroseismology gives us a unique opportunity to study stellar interiors through the observation and modeling of solar-like oscillations. Recent developments in both ground-based telescope networks and space missions are leading us into a very fruitful era for asteroseismology. I will give a brief overview of the field and explain the methods we use for asteroseismic modeling. I will also show some results from a case study of beta Hydri, long studied as a "future Sun", and mention several points that need further development.
Date: From 2009-06-26 19:00:00 to 2009-06-26 21:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Dr. Giuseppe La Rocca
INFN - Catania Italy
Concerto "Musica @ Fisica" (26 June 2009)
Abstract/Calendar
Il concerto "Musica @ Fisica", organizzato dalla Sezione di Catania dell'Instituto Nazionale di Fisica Nucleare, costituisce un evento importante poichè intende presentare, a tutta la comunità dei Beni Culturali ed al Grande Pubblico, i risultati ottenuti dal progetto ASTRA (Ancient instrument Sound/Timbre Reconstruction Application). Il progetto nato dalla collaborazione tra il Conservatorio di Salerno, l'INFN di Catania ed altri Enti, punta a ricostruire il suono di strumenti antichi (dei quali non esistono più esemplari) utilizzando le metodologie più avanzate di modellazione al calcolatore. Attualmente è coordinato dal Conservatorio di Musica di Parma. La tecnica utilizzata per ricreare il timbro degli strumenti musicali si chiama "sintesi per modelli fisici" (physical modeling synthesis) ed è basata sulla simulazione del comportamento fisico dello strumento attraverso equazioni matematiche ed algoritmi che ne descrivono la struttura e le reazioni agli stimoli (soffio, percussione, pizzico, sfregamento). Le informazioni di base sono tipicamente resti archeologici, descrizioni prese dalla letteratura, campioni di materiali, raffigurazioni pittoriche che forniscono preziosi ragguagli circa i materiali, le forme e le tecniche musicali utilizzate per produrre il suono. Dal punto di vista computazionale, il progetto ASTRA si avvale della tecnologia più avanzata al momento per il calcolo distribuito su scala internazionale, il "Grid computing", ovvero il calcolo distribuito su larga scala. La computazione è effettuata sulla rete GEANT2 (la rete paneuropea per la ricerca e la formazione) e su EUMEDCONNECT2 (la dorsale per la ricerca e la formazione che lega i paesi del basso mediterraneo). Grazie alle infrastrutture di calcolo distribuite messe a disposizione dal progetto INFN GILDA e dal progetto EUMEDGRID, co-finanziato dalla Comunità Europea nell'ambito del 6 Programma Quadro, ASTRA oggi riesce a far rivivere le emozioni dei suoni antichi, e consentire a musicisti di utilizzare questi suoni durante i concerti come quello a cui assisterete. Nel concerto che seguirà alle ore 20:00, il suono dell'Epigonion (430 A.C.), un'antico strumento a corde, suonerà insieme ad altri strumenti reali. Gli esiti del connubio tra la ricerca scientifica più avanzata in ambito musicale e la musicologia saldamente impiantata nella prassi esecutiva si realizzano con il SONORA NETWORK ENSEMBLE. SONORA NETWORK ENSEMBLE Enrico VICINANZA, voce Leonardo MASSA, violoncello barocco Paolo CIMMINO, percussioni Francesco DE MATTIA, epigonion Un percorso musicale attraverso gli autori più significativi della musica antica, una parabola evolutiva che dalla villanella alla napoletana cinque/seicentesca giunge ai fasti del barocco italiano ed europeo. Musiche di Dall'Apra, Anonimi napoletani, Caccini, Bassani, Purcell, Haendel, Vivaldi, Provenzale. Il concerto è gratuito ma poichè i posti in sala sono 280 è obbligatoria la prenotazione.
Date: 2009-06-23 11:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Massimo Robberto
Space Telescope Science Institute, Baltimore USA
JWST: status and plans. Main instruments. Possible collaborations (science and technology)

Date: 2009-06-22 11:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula Azzurra
Prof. Thereza Borello Lewin
Instituto de Física, USP, Brasil
(6Li,d) experiments on odd light mass nuclei at the IFUSP Pelletron-Split-Pole facility
Abstract/Calendar
A systematic study of α-cluster spectroscopic strengths in odd-even light with (xα+ν) structure is in progress. Referring to 13C and 17O, data of the 9Be(6Li,d)13C and 13C(6Li,d)17O reactions have been taken at an incident energy of 25,5 MeV and the emerging deuterons detected in nuclear emulsion plates. Spectra associated with seven scattering angles, between 3° and 20°, in the laboratory frame, were measured and a resolution of 50 keV was achieved. Bound and resonant states up to 11MeV of excitation in 13C and 17MeV in 17O, intensely populated, were observed. The experimental angular distributions were compared with DWBA predictions and from a theoretical point of view calculations of the α-cluster model were performed.
Date: 2009-06-18 11:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Massimo Robberto
Space Telescope Science Institute Baltimore USA
WFC3: the instrument, its core program (IR channel), possible collaborations

Date: 2009-06-18 11:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Robberto Massimo
Space Telescope Science Institute Baltimore USA
WFC3: the instrument, its core program (IR channel), possible collaborations

Date: 2009-06-15 11:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Massimo Robberto
Space Telescope Science Institute Baltimore USA
HST refurbished: news from STScI, plans for future AO

Date: From 2009-06-11 11:30:00 to 2009-06-11 12:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Adriano Fontana
Osservatorio Astronomico di Roma INAF Italy
Thinking BIG: Concept design and science cases for a 5sqdeg spectrograph on a 8m telescope

Date: From 2009-06-09 11:30:00 to 2009-06-09 12:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Prof. Ray Alak
Tata Institute of Fundamental Research, Mumbai India
Binary radio pulsars in globular clusters: their orbital eccentricities and interaction with other stars
Abstract/Calendar
Sustained high sensitivity searches of globular clusters (GC) for radio pulsars by improved pulsar search algorithms and pulsar timing experiments have yielded some 140 pulsars in more than two dozen GCs. The observed distribution of orbital eccentricity and period of binary radio pulsars in GCs have signatures which appear to be from the past imprint of the interaction between single pulsars and binary systems or of binary pulsars and single passing normal stars that includes exchange and merger of stars. It is seen that GCs have different groups of pulsars arising from separate interaction or evolutionary scenarios. We analyse these distributions using computational tools like the STARLAB software. The corresponding distribution for galactic field pulsars show notable difference from the GC pulsar orbital period and eccentricity distribution. The long orbital period pulsars in the galactic field with frozen out low eccentricities are missing in globular clusters and we show that ionization alone of these systems in GCs cannot account for the peculiarities. Some of the short orbital period systems will undergo merger due to gravitational wave radiation and will be a source of gamma-ray bursts if both stars are neutron stars in a binary. These systems may become nearly circularized even early on in their lifetime, due to significant gravitational radiation.
Date: From 2009-06-04 11:00:00 to 2009-06-04 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Brett C. Johnson
Micro Analytical Research Center and Centre for Quantum Computer Technology, University of Melbourne Australia
Hydrogen in Si processing

Date: From 2009-06-03 16:30:00 to 2009-06-03 19:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Premiazione Olimpiadi di Fisica 2009

Date: From 2009-05-28 15:00:00 to 2009-05-28 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula I
Dr.ssa Valentina Bruno
Istituto di Geofisica e Vulcanologia sezione di Catania Italy
Studio delle deformazioni del suolo delle aree vulcaniche e sismogenetiche in Sicilia Orientale mediante il GPS

Date: 2009-05-26 11:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Mario Lattanzi
INAF-TO Italy
The Gaia mission: current status and applications
Abstract/Calendar
The ESA Gaia mission is an all-sky astrometric and spectrophotometric survey of point-like objects between 6th and 20th magnitude. Some 1 billion stars, a few million galaxies, half a million quasars, and a few hundred thousand asteroids are expected to be observed over 5-6 years with typically 80 field-of-view transits per object. Expected accuracies for stellar parallaxes, annual proper motions and mean epoch positions are 7-25 microarcsec down to 15th magnitude and 100-300 microarcsec at 20th magnitude. The astrometric data are complemented by low-resolution spectrophotometric data in the 330-1000 nm wavelength range and, for the brighter stars, radial velocity measurements. The review illustrates the current status of the project, now well into its advanced implementation phase. It updates on the progress in manufacturing critical payload elements and on the preparations for the scientific data processing within the Gaia Data Processing and Analysis Consortium, with emphasis on the Italian contribution. Finally, in discussing the main science goals the presentation concentrates on applications in fundamental physics and the science of extrasolar planets.
Date: From 2009-05-21 15:00:00 to 2009-05-21 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula I
Dr.ssa Daniela Fasanaro
Stagista presso Enel Ingegneria e Innovazione - Ricerca Italy
La radiazione solare e l'interazione con l'atmosfera. Metodi e strumenti di misura

Date: From 2009-05-20 15:30:00 to 2009-05-20 17:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Santo Fortunato
Institute for Scientific Interchange (ISI) Torino Italy
Community detection in graphs
Abstract/Calendar
Detecting communities in graphs is crucial to uncover relationships between nodes of complex networks. We review the topic, from the main concepts and related problems to the description of some of the most popular algorithms. We close with a list of open problems of the field, from the issue of testing algorithms to the question of what structural communities stand for.
Date: 2009-05-20 11:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Prof. Nino Panagia
Space Telescope Science Institute, Baltimore USA
Digging into the Past of Exploding Stars: Radio Observations of Supernovae

Date: From 2009-05-19 19:00:00 to 2009-05-19 20:00:00
Location: Scuola Superiore di Catania, Via S. Nullo, 5/i, Catania, Aula Magna
Dr. Santo Fortunato
Institute for Scientific Interchange (ISI) Torino Italy
Towards a physics of society
Abstract/Calendar
Statistical physics has proven to be an invaluable tool to describe and understand the properties of systems formed by a large number of elementary units. A big challenge is whether the tools and techniques of statistical physics are suitable to explore large scale social phenomena. Most attempts of the literature focus on simple microscopic models, with little or no contact to real social dynamics. A validation of this approach is still lacking and must rely on quantitative evidence about real social systems. Finding regularities on real data is a crucial step in this direction. We will show that voting and citing behaviors are both characterized by scaling and universality. The statistical distribution of the number of votes/cites, suitably normalized, is independent of the particular system considered. This opens the way to a simple modeling of the observed phenomenology.
Date: From 2009-05-19 11:30:00 to 2009-05-19 12:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Melvin Hoare
School of Physics and Astronomy University of Leeds UK
Proposal Writing Case Studies
Abstract/Calendar
Study real Gemini proposals, grade them and discuss. Compare with the actual outcome and feedback from the Time Allocation Process.
Date: From 2009-05-19 11:30:00 to 2009-05-19 12:30:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula Azzurra
Dr. Giacomo Cuttone
INFN-LNS
Misure di frammentazione per adroterapia e applicazioni nello spazio

Date: From 2009-05-18 10:30:00 to 2009-05-18 11:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Melvin Hoare
School of Physics and Astronomy University of Leeds UK
IR Observational Techniques and Facilities
Abstract/Calendar
IR Observational Techniques and Facilities Near-IR Imaging - wide field surveys - high resolution imaging, peckle, AO, lasers, coronographs Near-IR spectroscopy - low resolution, medium res., OH sky lines and suppression, high res. echelles Spectro-polarimetry and astrometry Integral field spectroscopy Multiple object spectroscopy Mid-IR imaging - diffraction limited Mid-IR spectrscopy IR Interferometry - VLTI with MIDI and AMBER
Date: From 2009-05-14 15:00:00 to 2009-05-14 19:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
4° Meeting finale Progetto Lauree Scientifiche ed Envirad-Splash meeting

Date: From 2009-05-14 15:00:00 to 2009-05-14 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula I
Dr.ssa Simona Scollo
Istituto Nazionale di Geofisica e Vulcanologia Sezione di Catania Italy
Analisi di sensitività e stime di incertezza dei modelli di dispersione delle ceneri vulcaniche

Date: From 2009-05-07 15:00:00 to 2009-05-07 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula I
Dr.ssa Simona Scollo
Istituto Nazionale di Geofisica e Vulcanologia Sezione di Catania Italy
Monitoraggio e modellizzazione della dispersione delle ceneri vulcaniche

Date: From 2009-05-06 08:30:00 to 2009-05-08 19:00:00
Location: Hotel Le Dune - Viale Kennedy - Catania,
Chairs Fabrizio Roccaforte Vito Raineri
CNR-IMM Italy
HeteroSiC & WASMPE 2009
Abstract/Calendar
The third edition of the international workshop on SiC hetero-epitaxy (HeteroSiC 2009) and at the third edition of the Workshop on Advanced Semiconductor Materials and devices for Power Electronics applications (WASMPE 2009) hold for the first time jointly. The two events could take advantage by the MANSIC project mid-term meeting organized close to the workshops and allowing to all project participants to get involved also in these two other events. The fruitful concomitancy of the events allowed to provide a larger but still well focused forum for scientists and engineers coming from public research institutions and industry and contributing to the particular success of this edition in term of both number of participants (121) and scientific and technical level. In this edition a particular emphasis was directed by the local scientific committee to the participation of industry that indeed is uppermost with respect the past editions illustrating the industrial challenges and presenting some innovative solutions adopted. Also the topics were reviewed with respect past editions including new and innovative trends in the field. Presentations are from over 32 research institutions and 13 industrial research centers in 11 countries all over the world. The futures trends and perspectives in the field have been reviewed focusing on emerging materials, methods and techniques. HeteroSiC has appeared has a growing field attracting new topics and promising scientific and technological issues. Onward the traditional topic of 3C-SiC politype on Si an emerging field appeared the growth of cubic silicon carbide (β phase) on the hexagonal politypes (α phase). Particularly, the 3C/4H interface shows a spontaneous polarization and the formation of a two dimensional electron gas opening to SiC extraordinary prospectives. Furthermore, the growth of unstrained 3C on hexagonal SiC allowed the opportunity to have high quality cubic silicon carbide material that can be used even as seed for crystal growth. Free standing 3C-SiC and related omoepitaxy has been faced, too. Already well established is the heteroepitaxial growth of GaN on SiC, particularly interesting for power RF applications but of course driven in the past by optoelectronics applications while very promising come out the formation of graphene on SiC (both 4H- and 3C politypes) opening to several fundamental opportunities and to the industrial fabrication of (nano)sensors and devices. Power electronics applications seems the most interested industrial application for wide band gap semiconductors, remaining SiC (mainly 4H polytype) the most mature material in terms of crystal quality and wafer dimension. Even if some MEMS and sensor perspectives have been presented during HeteroSiC (mainly interesting SME), the main interest from large companies appears on high efficient power and RF devices. Large diameter SiC wafers and high quality thick layers of GaN on Si are the main challenges for material growth to achieve reliable power devices for industry. Processing related crucial aspects are still mainly related to switches, particular MOSFET and the interface between the gate oxide and SiC. The cost is still the main issue even if the high efficiency of those devices, unreachable with standard semiconductors even using advanced technologies and coming to the general attention for the energetic saving and CO2 emission limitation rules imposed. Also perspectives and challenges of futures materials such as diamond for power applications have been presented.
Date: From 2009-04-27 16:30:00 to 2009-04-27 18:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Tomasello Pasquale
Dipartimento di Fisica UniCT Italy
"Copenhagen" QM and its heroes on Stage
Abstract/Calendar
Nel 1998 veniva rappresentata a Londra una piece teatrale del drammaturgo e scrittore britannico M. Frayn avente come soggetto una alquanta misteriosa ed oscura visita di Heisenberg a Bohr in una Copenhagen occupata dai nazisti(Settembre 1941). Questo pezzo teatrale da allora ha conseguito uno spettacolare successo di publico e critica si scala mondiale coinvolgendo appassionatamente anche le comunità internazionali di fisici e storici della Fisica rinfocolando vivamente le mai sopite polemiche sulla controversa e drammatica figura dello scienziato tedesco. Diversi seminari e convegni at MIT, CUNY, NBI, Nordita et altrove hanno visto una massiccia partecipazione di fisici e storici della fisica generando una letteratura considerevole nei suoi aspetti storico-sociologici e scientifici. Tutto ciò da una semplice domanda: Che ci andò a fare il supposto capo del progetto nucleare nazista a Copenhagen ? Una domanda cui non si è mai potuto dare una soddisfacente e condivisa risposta. La piece in discorso sarà rappresentata al Teatro Stabile di Catania dal 28 c.m. al 10 Maggio 2009 con Orsini, Lojodice e Populizio per la regia di M. Avogadro.
Date: From 2009-04-23 18:30:00 to 2009-04-23 19:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Regino Criado
Department of Applied MAthematics, Universidad Rey Juan Carlos, Madrid Spain
A global and unified approach to complex networks' vulnerability
Abstract/Calendar
The main target of this talk is to give a an unified approach to complex networks' vulnerability after a panoramic view about different approaches to complex network vulnerability
Date: From 2009-04-16 15:00:00 to 2009-04-16 16:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Daniele Oriti
Max Planck Institute for Gravitational Physics (Albert Einstein Intitute) Germany
Quantum Gravity: an introduction and one recent approach
Abstract/Calendar
We give a general introduction, mainly aimed at students, to the problem of quantum gravity. We explain the conceptual and physical motivations of research in this area (from our perspective), outline the main issues that somebody working in it faces, and describe briefly some of the approaches that are currently being developed. Among them, if time allows, we expand a bit on the so-called group field theory formalism, a generalization of matrix models for 2d quantum gravity, and directly related to both loop quantum gravity and simplicial quantum gravity, other important recent approaches.
Date: From 2009-04-16 11:00:00 to 2009-04-16 12:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula I
Dr. Simone Russo
KNMI (Koninklijk Nederlands Meteorologisch Instituut), Utrecht The Netherlands
More effective time grid reconstruction in the calibration of geochemical proxies from coral skeletons
Abstract/Calendar
The extraction of paleoclimate signals from the aragonitic skeletons of scleractinian shallow-water corals and to a lesser extent deep-water corals using stable isotopes, trace and minor element compositions represents a significant scientific advance, although coral physiology (i.e. "vital effects")plays an important role in modulating the environmental signals preserved within the growing carbonate skeleton. Typically, a geochemical proxy analyzed along the coral growth axis is empirically calibrated against an environmental parameter (e.g. sea surface temperature) through the anchor-point method, considering common features in the two time series as fixed points and assuming a constant growth-rate between these points. This assumption is often at best a poor approximation since the growth rate can vary on a subannual (e.g. monthly) time scale. Here, we present an alternative method to obtain a growth-rate modulated time grid following a more rigorous approach, based on the Spectral analysis. This method can reconstruct sub-annual variations in growth-rate and accretion stops, with the final aim to derive better calibration functions to be used for paleoclimate reconstructions.
Date: From 2009-04-08 19:00:00 to 2009-04-08 20:00:00
Location: Scuola Superiore di Catania, Via S. Nullo, 5/i, Catania, Aula Magna
Dr.ssa Cecilia Mascolo
Computer Laboratory, University of Cambridge UK
Mobile and Sensor Systems, their Design, Deployment and Evaluation
Abstract/Calendar
In this talk I will describe the various activities we have been focussing on in recent years, mainly in the area of mobile networks. We will first discuss our content dissemination approaches in human and vehicular networks which exploit mobility prediction techniques, our work on mobile sensor networks applied to wildlife monitoring with problems related to duty cycling, reprogramming and routing, and the work on analysis of realistic mobility models which include recent work on applications of social networks to temporal contact graphs. Dr. Cecilia Mascolo is an EPSRC Advanced Research Fellow and a University Lecturer in the Computer Laboratory, University of Cambridge. Prior to this, she was with the Department of Computer Science of University College London. She holds an MSc (1995) and a PhD (2001) in Computer Science from University of Bologna (Italy). She has been a visiting fellow in Washington University in St. Louis in 1998. She has published extensively in the areas of mobile sensor networks, opportunistic mobile network routing, realistic mobility models exploiting social theory, middleware for pervasive and context-aware systems. Dr. Mascolo is currently working on EPSRC, EU and industry funded projects on opportunistic routing for mobile and sensor networks and embedded systems middleware, with applications in wildlife monitoring, human and vehicular information dissemination. Dr Mascolo has served as a Technical Programme Committee member in many mobile and sensor systems, middleware, software engineering and delay tolerant networks ACM and IEEE conferences and workshops. In addition, she is on the editorial board of IEEE Internet Computing. More details of her profile are available at www.cl.cam.ac.uk/~cm542.
Date: From 2009-04-07 16:00:00 to 2009-04-07 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Filippo Caruso
Institute for Mathematical Sciences, Imperial College London UK
Noise-assisted transport in biological quantum networks
Abstract/Calendar
Transport phenomena in complex networks play an important role in many areas of physics, chemistry, and biology. Environmental noise does usually deteriorate the performance of these systems. Here we identify two key mechanisms through which dephasing noise, contrary to expectation, may actually aid transport of excitations through dissipative quantum networks by opening additional pathways. We investigate numerically and analytically noisy transport dynamics on a fully connected network and study numerically the Fenna-Matthew-Olson (FMO) complex, the former to elucidate the fundamental principles, and the latter to show how these principles can explain the remarkable efficiency (99%) and robustness (against static disorder) of excitation energy transfer from the light-harvesting chlorosomes to the bacterial reaction center in biological photosynthetic complexes. These results strongly suggest the possibility for achieving robust and efficient information/energy transfer, assisted by noise, by designing optimized artificial nano-structures for transport, for instance, in solar cells and in quantum information processing.
Date: From 2009-04-01 16:00:00 to 2009-04-01 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Jorge Sevilla
INFN Catania Spain
Digital libraries on the Grid to preserve cultural heritage with gLibrary
Abstract/Calendar
Data Grids offer redundant and huge distributed storage capabilities, providing an ideal and secure place for the long-term preservation of digitalised literary works and documents of artistic and historical relevance.Grid authentication and authorization mechanisms allow a fine-grained access to archives by single users, groups or entire communities. Moreover, metadata services permit a structured organization of scans for quick searches. In this presentation, a grid-based system to host and manage digital libraries developed by INFN Catania, named gLibrary, will be showed, with details on the architecture of the system and its implementation. A use case has been recently implemented in collaboration with some researchers of the Faculty of Letters and Philosophy: the manuscript repository of the italian writer Federico De Roberto has been deployed on the COMETA grid infrastructure with the gLibrary platform.
Date: From 2009-04-01 09:50:00 to 2009-04-01 17:00:00
Location: Dipartimento di Scienze Chimiche, Aula A
Sintesi e caratterizzazione di nanostrutture a base di carbonio
Abstract/Calendar
Giornata studio su: Sintesi e caratterizzazione di nanostrutture a base di carbonio mediante la formazione di plasmi in ambienti ad alta densità
Ore 09:50  Giuseppe Compagnini (Università di Catania)
                  Presentazione ed apertura dei lavori

Ore 10:00 Silvia Scalese (CNR - IMM)
Sintesi di nanotubi di carbonio e di catene lineari di C mediante scarica ad arco in azoto liquido

Ore 10:30 Filippo Giannazzo (CNR - IMM)
                Nanoscale structural and electrical characterization of graphene on SiO2

Ore 11:00 Sushant Sonde (CNR -IMM)
                Graphene on silicon carbide

Ore 11:30 Pausa


Ore 12:00 Giuseppe Baratta (Osservatorio Astrofisico - Catania )
Carbon nanostructures obtained by irradiation of frozen ices

Ore 12:30 Franco Cataldo (Actinium Chemical Research)
Products formed from the electric arc in liquids solvents using titanium and tungsten electrodes

13:00 Pausa Pranzo

Ore 14:30 Alessandro De Giacomo (Università di Bari)
Laser Induced Plasma Spectroscopy during ablation of solid target in water by single and double pulse technique

Ore 15:00 Luisa D'Urso (Università di Catania)
A mass spectrometry and surface enhanced Raman spectroscopy study of the interaction between carbon nanowires and noble metals

Ore 15:30 Enza Fazio (Università di Messina)
Microscopia e spettroscopia di fotoelettroni in sistemi misti poliini-nanoparticelle metalliche

Ore 16:00 Antonino La Magna (CNR - IMM)
Struttura elettronica e trasporto di carica in nanostrutture basate su allotropi sp2 del carbonio

Ore 16:30 Giacomo Patanè (Università di Catania)
XPS spectroscopy in carbon based nanomaterials

Ore 17:00 Tavola Rotonda - Progetto PRIN
Organizzatore: Prof. G. Compagnini (gcompagnini@unict.it)
Date: From 2009-03-31 16:00:00 to 2009-03-31 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Pappalardo - Rizzo
Dipartimento Fisica ed Astronomia - Catania
LANDIS - un laboratorio per lo sviluppo di strumentazioni e metodi di analisi non distruttive applicate ai Beni Culturali.
Abstract/Calendar
Nel corso del colloquium verrano illustrate le differenti tecniche e metodologie utilizzate per l'analisi, qualitativa e quantitativa, degli elementi presenti in manufatti di interesse artistico e/o archeologico (PIXE-alfa, X-PIXE, XRF, XRD). Le strumentazioni utilizzate hanno tutte la caratteristica di essere tutte facilmente trasportabili e, quindi, possono essere "portate" presso l'opera d'arte da analizzare quando questa, per diversi motivi, risulta inamovibile. Verrà anche illustrata una tecnica di analisi di metalli non distruttiva che utilizza i fasci di protoni accelerati dal Tandem dei LNS. Tale tecnica, chiamata DPAA (Deep Proton Activation Analysis), applicata all'analisi di monete antiche, consente la valutazione quantitativa dei materiali "preziosi" contenuti al loro interno (Ag, Sn..), informazione questa di sicuro interesse per lo studio dell'andamento economico del periodo storico di riferimento.
Date: From 2009-03-31 11:30:00 to 2009-03-31 12:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, acosta@ct.astro.it
Prof. Petrosian Artashes
Byurakan Observatory Armenia
International support programs for science collaboration with FSU (Former Soviet Union) countries. Ways of cooperation and possible difficulties.

Date: From 2009-03-30 17:00:00 to 2009-03-30 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula L
Dr. Filippo Giannazzo
CNR-IMM, Strada VIII, 5, 95121, Catania Italy
Nanoscale transport properties of graphene
Abstract/Calendar
Graphene, a monolayer of carbon atoms packed into a two-dimensional (2D) honeycomb lattice, is the object of an increasing (really booming) interest by the scientific community both from the theoretical and the experimental approach. Due to its exceptional electronic properties making this material the bridge between solid state physics and quantum electrodynamics and many other chemical properties the range of possible applications is enlarging day by day. Here, the electronic properties are focused in view of possible applications in microelectronics. In particular, the giant electron mobility and the micrometer scale coherence length observed at room temperature have attracted the interest on graphene as a potential candidate for post-Si electronics. During the talk, an overview on some hot topics in graphene research will be given and the activity currently in progress at CNR-IMM on this material will be presented. The two main roots for graphene synthesis, i.e. micromechanical exfoliation of highly oriented pirolythic graphite (HOPG) [1] and controlled graphitization of silicon carbide surface [2], will be discussed. The recent experimental findings on the optical [3] and transport properties of graphene will be presented in relation to the peculiar energy band structure. The role of nanoscale disorder (defects, impurities) on the mobility [4] and density of states (DOS) [5] will be discussed. The main scattering mechanisms limiting the mobility of the state-of-the-art material will be addressed, making a distinction between extrinsic and intrinsic scattering mechanisms [4]. Furthermore, the possibility to determine the local DOS by original methods proposed for the first time at IMM and based on scanning probe microscopy (SPM) will be presented [6,7]. The observed nanoscale lateral variations of this quantity will be discussed in relation to the literature results. [1] K. S. Novoselov, A. K. Geim, S. V. Morozov, D. Jiang, Y. Zhang, S. V. Dubonos, I. V. Grigorieva, and A. A. Firsov, Science, Vol. 306, p. 666, 2004. [2] C. Berger, Z. Song, X. Li, X. Wu, N. Brown, C. Naud, D. Mayou, T. Li, J. Hass, A. N. Marchenkov, E. H. Conrad, P. N. First, W. A. de Heer, Science, Vol. 312, p. 1191, 2006. [3] R. R. Nair, P. Blake, A. N. Grigorenko, K. S. Novoselov, T. J. Booth, T. Stauber, N. M. R. Peres, A. K. Geim, Science, Vol. 320, p. 1308, 2008. [4] J.H. Chen, C. Jang, S. Xiao, M. Ishigami, M. S. Fuhrer, Nature Nanotechnology, Vol. 3, p. 206, 2008. [5] J. Martin, N. Akerman, G. Ulbricht, T. Lohamann, J. H. Smet, K. Von Klitzing, A. Yacobi, Nature Phys. 4, 144. (2008). [6] F. Giannazzo, S. Sonde, V. Raineri, E. Rimini, Nano Lett., Vol. 9, p. 23, 2009. [7] F. Giannazzo, S. Sonde, V. Raineri, E. Rimini, J. Vac. Sci. Techn. B , 2009, in press.
Date: From 2009-03-30 16:30:00 to 2009-03-30 17:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. G.A. Souliotis
Texas A&M University (USA) and University of Athens (Greece) Greece
Probing the Nuclear Equation of State with Studies of Heavy Residues from Peripheral Collisions near the Fermi Energy
Abstract/Calendar
An overview of recent experimental studies of heavy residues from peripheral and semi-peripheral collisions near and below the Fermi Energy will be presented [1-4]. The present focus of these studies will be the possibility to extract information on the properties of the nuclear effective interaction (via comparisons with microscopic transport models) as manifested in the mechanism of nucleon exchange and the course towards N/Z equilibration [2]. We are trying to get insight into the nuclear equation of state by comparing our experimental heavy-residue data to detailed calculations using semiclassical models of quantum molecular dynamics (QMD) type. We have performed detailed calculations using the code CoMD (Constrained Molecular Dynamics) of A. Bonasera and M. Papa [5]. The code implements an effective interaction with a nuclear-matter compressibility of K=200 (soft EOS) with several forms of the density dependence of the nucleon symmetry potential. CoMD imposes a constraint in the phase space occupation for each nucleon, restoring the Pauli principle at each time step of the collision. Results of the calculations and comparisons with our experimental data will be presented and implications concerning the isospin part of the nuclear equation of state will be outlined. The importance of these studies to the field of astrophysics (e.g. modeling of core-collapse supernovae and neutron stars) will be pointed out. Finally, the prospects to extend the experimental studies using neutron-rich radioactive beams at existing or planned radioactive beam facilities will be outlined.
Date: From 2009-03-24 16:00:00 to 2009-03-24 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Siegbert Hagmann
JW Goethe University of Frankfurt and GSI Darmstadt Germany
Electron spectroscopy in moderately slow ion-atom collisions in the region of very strong pertubations

Date: From 2009-03-23 10:30:00 to 2009-03-23 17:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula Azzurra
Incontro sui fasci FRIBS - LNS Aula Azzurra - Lunedi 23 Marzo
Abstract/Calendar
10:30 M.Lattuada, "apertura lavori" 10:40 L.Calabretta, "Programma di modifiche alla linea FRIBS" 11:10 G.Raciti/E.Rapisarda, "FRIBS: prospettive" 11:30 S.Gammino, "Intensità, stato di carica e specie ioniche: possibili upgrades delle sorgenti ioniche" 11:50 A.Bonaccorso, "I nuclei non legati studiati mediante frammentazione del proiettile" 12:15 P.Finocchiaro, "Rivelatori di tagging" 12:35 C.Rizzo, "Radiazioni di dipolo di preequilibrio con fasci ricchi di protoni" 13:00 pausa pranzo 14:30 G.Cardella, "Utilizzo dei fasci FRIBS con CHIMERA" 14:50 discussione 17:00 chiusura lavori
Date: From 2009-03-20 11:30:00 to 2009-03-20 12:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Prof. Petrosian Artashe
Byurakan Observatory Armenia
Astronomy in FSU (Former Soviet Union) countries. Current observational capabilities, fields of interest. Existing international collaborations.

Date: From 2009-03-19 15:30:00 to 2009-03-19 19:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Lucio Rossi
CERN-TE (Technology Department) Head of the MSC group (Magnets, Superconductors and Cryostats) Italy
Riflessioni alla luce dell'avventura del Large Hadron Collider del Cern

Date: From 2009-03-18 17:00:00 to 2009-03-18 18:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula Azzurra
Irene Rabin
Bundesanstalt für Materialforschung
Archaeometry of dead sea scrolls

Date: From 2009-03-18 16:00:00 to 2009-03-18 17:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula Azzurra
Marina Bicchieri
Istituto centrale restauro e conservazione patrimonio archivistico e librario
Spectroscopic analysis on dead sea scrolls

Date: From 2009-03-12 12:00:00 to 2009-03-12 13:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula Azzurra
Prof. Roberto Calabrese
Università di Ferrara
Intrappolamento di atomi di francio per test di simmetrie fondamentali

Date: From 2009-03-05 11:00:00 to 2009-03-05 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Suenthra Ramanan
Investigations of the Renormalization Group approach to the nucleon-nucleon interaction and the Nuclear Many-body Problem
Abstract/Calendar
One of the main challenges of nuclear physics is to build up a microscopic theory for finite nuclei and nuclear matter. Conventional nuclear many-body calculations are strongly non-perturbative in the inter-nucleon interactions. This non-perturbative behavior arises from several sources: 1. a strongly repulsive short-range interaction, 2. a tensor force, e.g. from pion exchange, which is highly singular at short-distances, 3. the presence of low-energy bound states or nearly bound states (in the S waves). It turns out that these sources of non-perturbative physics are density and/or cut-off dependent. This fact is exploited by using the low-momentum Renormalization Group based interactions as input, which makes nuclear matter calculation in particle-particle channel perturbative. In this talk, I will quantify the idea of ``perturbativeness'' through the Weinberg Eigenvalue Analysis. Close to the Fermi surface, we observe signatures of pairing in these eigenvalues and the momentum independent pairing gap can be easily extracted, which is in very good agreement with the BCS calculation.
Date: From 2009-02-26 16:00:00 to 2009-02-26 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Giorgio Bellia
Aspetti Interdisciplinari delle radiazioni ionizzanti
Abstract/Calendar
Giovedì 26 Febbraio ore 16 (Caffè alle 15.30)
Date: From 2009-02-23 16:00:00 to 2009-02-23 17:01:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula Azzurra
Dr. David Mascali
INFN-LNS
A new approach to the study of the ECR heating and particle dynamics in the plasma of ECR Ion Sources

Date: 2009-02-18 16:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula Azzurra
Dr. Francesco Cappuzzello
Università Catania - INFN-LNS
MAGNEX: primi risultati e prospettive

Date: From 2009-02-17 16:00:00 to 2009-02-17 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Giuseppe Mussardo
International School for Advanced Studies SISSA Trieste. Italy
Teorie non-integrabili in meccanica statistica e fenomeni di confinamento
Abstract/Calendar
Nel seminario si discutono i fenomeni fisici associati ad effetti di non-integrabilita' per i modelli di meccanica statistica in due dimensioni vicino ai loro punti critici.
Date: From 2009-02-12 11:00:00 to 2009-02-12 13:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Ignazio Licata
Institute for Scientific Methodology, Palermo Italy
La Logica Aperta della Mente: dall'Intelligenza Artificiale al "Quantum Brain".
Abstract/Calendar
L'attuale fase delle neuroscienze ripropone la domanda di una visione unitaria della mente all'interno della quale poter collocare i molti tasselli di un puzzle che appare sempre più complicato. Quali sono le relazioni tra mente e cervello, e tra mente e mondo fisico? Che tipo di informazione entra in gioco nei processi cognitivi? É possibile una teoria matematica della coscienza? Ognuno dei modelli finora proposti, quelli logico-simbolici dell'intelligenza artificiale, le reti neurali e i sistemi dinamici, cattura solo una piccola parte del problema. Questa irriducibilità è ben nota a chi si occupa di processi emergenti nei sistemi complessi, in cui le relazioni tra sistema e ambiente si modificano continuamente e producono nuove regole e comportamenti. Una teoria generale dei processi cognitivi deve essere dunque intesa come una scala di complessità, che dai modelli computazionali della vecchia intelligenza artificiale arrivi al 'quantum brain' e alla coscienza, e deve essere in grado di abbracciare sia il computer sia gli aspetti biologici della cognizione all'interno di una visione unitaria che colga l'aspetto essenziale: che la logica della mente è aperta, non si limita a elaborare risposte a problemi predefiniti ma progetta di continuo nuovi "giochi".
Date: From 2009-02-11 16:00:00 to 2009-02-11 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Ignazio Licata
Institute for Scientific Methodology, Palermo Italy
Bohr, Bohm e il Realismo, ovvero: Chi ha bisogno di "interpretazioni " in fisica quantistica?
Abstract/Calendar
Sin dal suo apparire, la fisica quantistica ha posto alla comunità scientifica problemi interpretativi che non sembrano aver esaurito la loro fecondità. In particolare, il dibattito Einstein- Bohr, le variabili nascoste ed il lavoro di Bohm e Bell sulla non-località sono le tappe di un dibattito che oggi conosce nuove risorse e prospettive sui nuovi temi posti dalla teoria dei campi, dalla cosmologia quantistica ed il quantum computing. David Bohm (1917-1992), indicato da molti come il successore di Einstein, è stato uno dei pensatori più originali, e fraintesi, nel campo dei fondamenti della meccanica quantistica. L'obiettivo del seminario è ripercorrere le tappe del suo lungo lavoro sul problema del "realismo" quantistico, e discutere criticamente le due grandi versioni della sua eredità, la "bohmian mechanics" e la nozione di "non-local active information", studiandone l'impatto sui problemi della fisica teorica contemporanea.
Date: From 2009-02-11 11:00:00 to 2009-02-11 13:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Est
Dr. Roberto Lo Savio
Dipartimento di Fisica e Astronomia, Università di Catania Italy
Erbium-rich thin film materials for optical communications in silicon

Date: From 2009-02-11 11:00:00 to 2009-02-11 13:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula E
Dr. Fabio Formosa
Dipartimento di Scienze Chimiche, Università di Catania Italy
Polymer film processing for advanced biomimetic materials

Date: From 2009-02-11 09:00:00 to 2009-02-11 13:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aule B-C-I-L-M-
XXIII OLIMPIADI DI FISICA 2009 - GARA DI SECONDO LIVELLO

Date: From 2009-02-03 16:30:00 to 2009-02-03 18:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Tomasello Pasquale
Università di Catania Italy
Anatomia del più famoso articolo del Secolo XX°
Abstract/Calendar
Si esaminerà in dettaglio critico essenzialmente nella sua Parte cinenatica, il famoso articolo di A. Einstein dell'estate del 1905 che fondò la Relatività einsteiniana
Date: From 2009-01-29 11:30:00 to 2009-01-29 12:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Francesco Zuccarello
Centre for Plasma Astrophysics Katholieke Universiteit Leuven Belgium
Modelling the initiation of Coronal Mass Ejections: magnetic flux emergence vs shearing motions
Abstract/Calendar
We study the initiation and early evolution of coronal mass ejections (CMEs) in the framework of numerical ideal magnetohydrodynamics (MHD). The magnetic field of the active region possesses a topology in order for the ``breakout'' model to work. An initial multi-flux system in steady equilibrium containing a pre-eruptive region consisting of three arcades with alternating flux polarity is kept in place by the magnetic tension of the overlying closed magnetic field of the helmet streamer. Both foot point shearing and magnetic flux emergence are used as a triggering mechanism in this model. The boundary conditions cause the central arcade to expand and lead to the eventual ejection of the top of the helmet streamer. We compare the topological and dynamical evolution of the two triggering mechanisms and find that the overall evolution of the systems are similar.
Date: From 2009-01-29 11:00:00 to 2009-01-29 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Michael Unger
Forschungszentrum Karlsruhe, Institut für Kernphysik, Karlsruhe Germany
Results from the P. Auger Observatory: the energy spectrum and the mass composition

Date: From 2009-01-23 16:00:00 to 2009-01-23 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Antonino Licciardello
Dip. Scienze Chimiche, Univ. Catania Italy
Abstract/Calendar
Highly conductive molecular wires on surfaces: a supramolecular approach
Date: From 2009-01-22 17:00:00 to 2009-01-22 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Ioannis Deretzis
Scuola Superiore di Catania Italy
A multiscale analysis of electronic structure and quantum transport in pure/defected/functionalized coronene-based graphene quantum dots
Abstract/Calendar
Coronene molecules can be seen as graphene-based quantum dots with a point symmetry. In this study we implement a bottom-up multiscale approach on their modeling, from density functional to semiempirical with different levels of accuracy (extended-Huckel with various bases and parameterizations and tight-binding). Using the ab initio calculations as a reference, the goal is to recognize the theoretical framework under which semiempirical methods describe adequately the electronic structure of the studied systems and thereon proceed to the calculation of quantum transport within the non-equilibrium Green's function formalism. Deviations from the ideal two-dimensional honeycomb lattice (confinement, deformations, vacancies and hydrogen impurities) challenge the traditional tight-binding picture of graphene-based complexes whereas the role of parameterization proves to be crucial even within the same semiempirical context. In terms of conduction, failure to capture the proper chemical aspects in the presence of generic local alterations of the ideal atomic structure sketches improperly the transport features, while contrary, a correct treatment of the latter by the semiempirical models can lead to massive transport calculations of realistic graphene-based devices. As an example, we show wavefunction localizations provoked by the presence of vacancies and how important is their modeling for the conduction characteristics of the studied systems.
Date: 2009-01-22 11:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Gilles Lerondel
Univ. de Technologie de Troyes
Nanooptics for photonics

Date: From 2009-01-22 11:30:00 to 2009-01-22 13:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Gilles Lerondel
Univ. de Technologie de Troyes
Nanooptics for photonics

Date: From 2009-01-22 08:00:00 to 2009-01-30 18:00:00
Location: Palermo(Viale delle Scienze, ed 8) e Catania (Cittadella),
Dr.ssa Valeria Ardizzone
INFN Catania Italy
Scuola di Calcolo Scientifico con MATLAB
Abstract/Calendar
La scuola si rivolge a studenti universitari, dottorandi ed assegnisti di ricerca, ricercatori e docenti universitari o afferenti ad enti di ricerca. L'unico prerequisito richiesto a tutti coloro intendano seguire la Scuola è una certa familiarità con l'uso del computer e con i rudimenti dell'analisi scientifica dei dati. Verranno introdotti i concetti base dell'interfaccia utente di MATLAB, la tipologia fondamentale dei dati, la programmazione scripting e funzionale, la visualizzazione grafica, l'Input/Output delle informazioni nonché la creazione di interfacce utente grafiche (GUI). Infine, si apprenderanno i rudimenti del calcolo distribuito e parallelo e l'implementazione di questi potenti strumenti scientifici in MATLAB. La scuola consisterà in 5 giornate di Lezioni e 2 di Esercitazioni. Le Lezioni saranno tenute da un docente di The MathWorks, affiancato da uno o più tutor d'aula, presenti in ognuna delle aule nelle quali si terrà la Scuola. Le Esercitazioni verranno tenute da tutors appositamente formati, presenti in numero di uno o più presso ognuna delle aule didattiche. Il sistema di e-learning del Consorzio COMETA renderà possibile la fruizione delle lezioni a tutti gli iscritti, in ciascuna delle sedi di partecipazione (Palermo e Catania).
Sedi della Scuola.

Palermo:  
    * aula informatica (Main) della Facoltà di Ingegneria dell'Università degli Studi di Palermo,
        Viale delle Scienze, Ed. 8, Ingr. F1, alla presenza del docente di The MathWorks
    * aula informatica della Facoltà di Ingegneria dell'Università degli Studi di Palermo, 
        Viale delle Scienze, Ed. 8, Ingr. F2, in collegamento in videoconferenza con Main
    * aula informatica del CNR, Sede di Palermo, Via Ugo La Malfa 153, 
        in collegamento in videoconferenza con Main

Catania:

    * aula informatica della Facoltà di Ingegneria (Edificio Didattica) dell'Università degli Studi
        di Catania, Viale Andrea Doria 6, Catania, in collegamento in videoconferanza con Main
    * aula informatica del Dipartimento di Matematica ed Informatica dell'Università degli Studi
        di Catania, Viale Andrea Doria 6, Catania, in collegamento in videoconferanza con Main


----------------------------------------------------------------------
Per ulteriori informazioni rivogersi a: 
Prof. Roberto Barbera (roberto.barbera@ct.infn.it) 
Dott.ssa Valeria Ardizzone (valeria.ardizzone@ct.infn.it)   

Date: From 2009-01-20 11:30:00 to 2009-01-20 12:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Melvin Hoare
School of Physics and Astronomy University of Leeds UK
The Red MSX Source Survey: Massive young stellar objects and compact H II regions across the Galaxy.

Date: From 2009-01-20 00:00:00 to 2009-01-30 00:00:00
Location: Atrio del Dipartimento di Fisica e Astronomia,
"One millionth of a second after the Big Bang" - Mostra fotografica di Antonio Saba sull'esperimento ALICE al CERN
Abstract/Calendar
Un milionesimo di secondo dopo il Big Bang. In attesa dei primi fasci del Large Hadron Collider al CERN, un'avventura senza precedenti nella fisica nucleare e subnucleare, l'esperimento ALICE è pronto ad esplorare un nuovo regime di interazioni, in condizioni estreme di energia e di densità. Il volume fotografico, da cui sono tratte alcune foto qui esposte, è stato recentemente pubblicato dalla Società Italiana di Fisica, dedicato al team internazionale di oltre 1000 fisici, ingegneri e tecnici il cui sforzo collettivo negli ultimi 20 anni ha portato alla costruzione del rivelatore ALICE. Il fotografo italiano Antonio Saba, autore delle foto, ha trascorso lunghi periodi al CERN in compagnia dei protagonisti di quest'avventura, per comprendere i loro sforzi, le loro preoccupazioni e la grandezza nascosta di ciò che stavano realizzando. Le immagini prodotte per il CERN forniscono una dimensione pittorica, in cui colore e forma si fondono, per valorizzare il fattore umano nell'avventura scientifica. ----------------------------------------- Organizzazione dell'esposizione a cura di Paola La Rocca, Francesco Riggi
Date: From 2009-01-16 15:00:00 to 2009-01-16 17:30:00
Prof. François TONDEUR
Haute Ecole Paul-Henri Spaak Bruxelles Belgium
Protection against indoor Radon
Abstract/Calendar
Contents
15:00-16:00 Indoor radon pollution is determined by 5 main factors
	1. U/Ra in soil
	2. permeable soil
	3. entry pathway to the house
	4. negative pressure gradient soil-house
	5. lack of ventilation
Prevention and mitigation techniques act on factors 3, 4 , 5

16:00-17:00 Radon Measurements
Variability
Passive methods
Active methods
Progeny measurements
Soil Rn and permeability

17:00-17:30 Mapping Indoor Radon of the Walloon Region

Date: From 2009-01-15 16:00:00 to 2009-01-15 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Dr.ssa Sara Pirrone
INFN, Sez. Catania Italy
Il multirivelatore CHIMERA: l'apparato, gli esperimenti ed i risultati ottenuti

Date: From 2009-01-15 10:30:00 to 2009-01-15 11:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Massimo Papa
INFN- sez. Di Catania Italy
Symmetry interaction and many-body correlations
Abstract/Calendar
Many-body correlations generated by the symmetry potential naturally arise in the molecular dynamics CoMD-II model. The effect of these correlations on the collision dynamics at Fermi energies is discussed. In particular we show that two-body correlations generated by the symmetry potential are able to produce large effects in simple observables such as the charge and mass distributions. A comparison with predictions based on EOS static calculations is also discussed.
Date: From 2008-12-22 17:15:00 to 2008-12-22 18:15:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Marco Mazza
Boston University, Massachusetts USA
Cooperativita' e scenari dell'acqua

Date: From 2008-12-22 16:00:00 to 2008-12-22 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr.ssa Eloisa Bentivegna
Penn State University, Pennsylvania USA
Perturbazioni scalari in relativita' numerica: un'applicazione.
Abstract/Calendar
La soluzione del problema dei due corpi in relativita' generale rappresenta un requisito indispensabile per la rivelazione e la corretta interpretazione delle onde gravitazionali. In questo campo, metodi numerici e teoria delle perturbazioni svolgono un ruolo complementare; questo seminario presentera' i risultati ottenuti evolvendo un campo scalare nello spazio-tempo di un sistema binario di buchi neri.
Date: From 2008-12-19 11:30:00 to 2008-12-19 12:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Prof. Claudio Rubano
Università degli studi di Napoli Federico II Italy
Il problema della dark matter e della dark energy: realtà o artefatto teorico?

Date: From 2008-12-15 17:30:00 to 2008-12-15 18:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Mirco Musolesi
Computer Laboratory, University of Cambridge UK
Sensing, Understanding and Modelling People using Mobile Phones
Abstract/Calendar
Mobile phones are increasingly equipped with sensors, such as accelerometers, GPS , proximity sensors and cameras, that can be used to sense and interpret people behaviour in real-time. Novel user-centered sensing applications can be built by exploiting the availability of such technologies in these devices that are part of our everyday experience. Data extracted from the sensors can also be used to model people behaviour and movement patterns providing a very rich set of multi-dimensional data, which can be extremely useful for social science and epidemiological studies. In this talk I will present the design and implementation of the CenceMe platform, a system that supports the inference of activities and other presence information of individuals using off-the-shelf sensor-enabled mobile phones and sharing of this information through social networking information such as Facebook. I will also present an experimental prototype for sensing and mapping user activities by means of virtual avatars in Second Life. Finally, I will discuss how we are using these data to model people activity and movement patterns in the geographical space.
Date: From 2008-12-10 17:30:00 to 2008-12-10 18:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula E
Prof. Franco Bagnoli
Lab. Fisica dei Sistemi Complessi, Dip. Energetica & CSDC Universita' di Firenze Italy
Thermodynamic Entropy and Chaos in a Discrete Hydrodynamical System
Abstract/Calendar
We show that the thermodynamic entropy density is proportional to the largest Lyapunov exponent (LLE) of a discrete hydrodynamical system, a deterministic two-dimensional lattice gas automaton. The definition of the LLE for cellular automata is based on the concept of Boolean derivatives and is formally equivalent to that of continuous dynamical systems. This relation is justified using a Markovian model. In an irreversible process with an initial density difference between both halves of the system, we find that Boltzmann's H function is linearly related to the expansion factor of the LLE, although the latter is more sensitive to the presence of traveling waves.
Date: From 2008-11-25 16:30:00 to 2008-11-25 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Tomasello Pasquale
Dipartimento dI Fisica Unict Italy
La grande Guerra sulla Relatività
Abstract/Calendar
La parlata tratterà della storia della Relatività come vista e vissuta a Berlino, e a Bad Nauheim durante il Congresso(86°) dei Fisici Tedeschi del 1920. Si dirà del fronte antirelativistico organizzatosi proprio nell'estate del 1920 e che porta un primo durissimo attacco molto discusso sulla stampa in una molto partecipata manifestazione pubblica tenuta a Berlino intorno al 20 Agosto 1920 ed in cui Einstein venne accusato di plagio, la sua teoria violentemente attaccata come insostenibile e poco fondata sperimentalmente. A questo evento che turbò non poco Einstein, seguì un mese dopo un confronto serrato tra lo stesso ed il suo maggiore antagonista scientifico, P. Lenard(Nobel 1905,) che parimenti fiaccò la gagliarda tempra dell'autore della Relatività. Il tutto sarà presentato nel contesto storico del drammatico dopoguerra della Repubblica di Weimar in una Germania economicamente e finanziariamente prostrata fin alla bancarotta ed umiliata dai trattati di pace in corso a Versailles
Date: From 2008-11-21 11:00:00 to 2008-11-21 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Alberto Robledo
Instituto de Física, Universidad Nacional Autónoma de México Mexico
q-deformed statistical-mechanical structure in the dynamics of the Feigenbaum attractor
Abstract/Calendar
We show that the two complementary parts of the dynamics associated to the Feigenbaum attractor, inside and towards the attractor, form together a q-deformed statistical-mechanical structure. A time-dependent partition function produced by summing distances between neighboring positions of the attractor leads to a q-entropy that measures the ratio of ensemble trajectories still away at a given time from the attractor (and the repellor). The values of the q-indexes are given by the attractor's universal constants, while the thermodynamic framework is closely related to that first developed for multifractals.
Date: From 2008-11-20 11:30:00 to 2008-11-20 12:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Massimo Robberto
Space Telescope Science Institute Baltimore USA
Euclid: come misurare la Dark Energy

Date: From 2008-11-17 11:00:00 to 2008-11-17 12:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Massimo Robberto
Space Telescope Science Institute Baltimore USA
Formazione Stellare in Orione

Date: From 2008-11-14 11:00:00 to 2008-11-14 12:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula Azzurra
Dr. John Winfield
GSI Germany
Status of the Super-FRS for FAIR

Date: From 2008-11-13 17:00:00 to 2008-11-13 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Francesco Priolo
Dipartimento di Fisica e Astronomia, Università di Catania Italy
Colloquium: Nanotecnologie per l'Informazione, la Comunicazione e l'Energia

Date: From 2008-11-12 17:00:00 to 2008-11-12 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr.ssa Lucia Romano
CNR-INFM MATIS and Dipartimento di Fisica e Astronomia Univ. Catania Italy
Ion hammering effect on Ge nanowires

Date: From 2008-11-12 15:30:00 to 2008-11-12 16:30:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula Azzurra
Prof. Gianni Ricco
Università di Genova e INFN Sez. Genova
L'energia nucleare da fissione e il programma dell'INFN

Date: From 2008-11-10 09:00:00 to 2008-11-13 19:00:00
Location: Dipartimento di Matematica e Informatica, Viale A. Doria, 6,
New trends in Industrial and Applied Mathematics: International Conference in memory of Prof. A.M. Anile
Abstract/Calendar
2007 was a sad year for the Department of Mathematics and Computer Sciences in Catania for the sudden loss of Angelo Marcello Anile. He graduated in Mathematics on 1971 at the Scuola Normale of Pisa and got the PhD at the Oxford University under the supervision of Denis Sciama. From 1980 he was Full professor of Mathematical Physics in the University of Catania. His research activities has been devoted to several fields: General Relativity, Wave Propagation, Non-equilibrium Thermodynamics, Modelling of Charge Transport in semiconductors, Fuzzy Logic, E-learning. In the last years he mainly focused on industrial and applied mathematics. The meeting will include contributions from international leading scientists in the topics of interest of Marcello Anile as well as a number of scientists who actively collaborated with him in the studies of mathematical physics and applied mathematics in Italy and abroad.
Date: From 2008-11-07 11:30:00 to 2008-11-07 12:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Giacomo Cuttone
INFN-LNS Italy
I programmi di ricerca dei LNS per la produzione di fasci radioattivi e per lo studio della frammentazione nucleare nello spazio

Date: From 2008-11-03 09:10:00 to 2008-11-03 10:10:00
Abstract/Calendar
Cari colleghi, vi vorrei ricordare che dal 10-13 Novembre p.v. si terrà nella prestigiosa sede "Casa della Cultura Villa Citelli" il convegno New trend in Industrial and Applied Mathematics in memoria del Prof. A.M. Anile. Potrete trovare ulteriori informazioni al seguente link http://congr-ama.dmi.unict.it/home.htm La vostra partecipazione sarà particolarmente gradita. Per il comitato organizzatore Prof. Orazio Muscato Dipartimento di Matematica e Informatica Università di Catania Viale A. Doria 6 95125 Catania (Italy)
Date: From 2008-10-28 12:00:00 to 2008-10-28 13:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Gungor Can
Ege University Observatory (Izmir) TURKEY
Physical parameters of low-mass eclipsing binary components

Date: 2008-10-28 12:00:00
Dr. Gungor Can
Ege University Observatory (Izmir) TURKEY
Physical parameters of low-mass eclipsing binary components

Date: From 2008-10-24 11:00:00 to 2008-10-24 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Giorgio Torrieri
Johann Wolfang Goethe University of Frankfurt Germany
QCD meets fluid dynamics: Mach Cones in heavy ion collisions
Abstract/Calendar
The relativistic Heavy Ion Collider (RHIC) has made two highly publicized discoveries: One, Jet suppression, suggests that the medium created at RHIC is highly opaque. The other, elliptic flow, implies that this matter is very highly thermalized, and might be the "best fluid" ever found in nature. If true, these findings suggest that the energy deposited by the jets in the medium is also locally thermalized, and propagates through the Quark-Gluon Liquid as a "Mach Cone", the characteristic hydrodynamic shock associated with supersonic flight. In this lecture, I will give a theoretical and phenomenological overview of this phenomenon. After a short introduction to RHIC phenomenology, I will describe the physics of jet energy deposition into a fluid, both within relativistic hydrodynamics with a QCD equation of state, and through the analysis of infinitely strongly coupled conformal Plasma (possible via the so-called AdS/CFT correspondence). I will then describe ways to test the Mach Cone hypothesis, and to link the relevant experimental data to the transport properties of the matter created at RHIC ( Equation of state and transport coefficients). I conclude with an assessment of the currently available data, and the prospects of studying Mach Cones and the LHC.
Date: From 2008-10-23 11:30:00 to 2008-10-23 12:30:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula Azzurra
Dr. Paolo Finocchiaro
INF-LNS Italy
Photonics at Laboratori Nazionali del Sud: R&D and applications with Silicon PhotoMultipliers
Abstract/Calendar
After a wide introduction on the history of photonics activities at LNS during the last years, a detailed overview of the recent and current activities will be given. In particular the current developments and results with SiPM detectors will be discusse
Date: From 2008-10-21 16:00:00 to 2008-10-21 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula da definire
Dr.ssa Ginestra Bianconi
ICTP, The Abdus Salam International Center for Theoretical Physics, Trieste Italy
Off-equilibrium condensation phenomena in complex networks
Abstract/Calendar
Off-equilibrium condensation phenomena are found in many complex systems in which a set of entities have to be distributed in a given set of classes. Condensation phenomena are found in stylized urn models but have relevant applications related to wealth distribution problems, and traffic problems, to biological evolution and to evolution of complex networks. The different dynamical processes that display condensation show a phase transition between a phase in which the stationary state of the process exists and a phase in which there is no stationary state of the process and a finite fraction of entities (balls, wealth, population of links), belong to a single class (urn, individual, specie, node). In this talk I will present a model of evolution of networks that presents a off-equilibrium condensation phase transition that can be mapped into a Bose-Einstein condensation of a ideal Bose gas. We will study its static and dynamical properties and we will comment on the general framework that this model predicts for the evolution of the World-Wide-Web and the emergence of very efficient (and successful) search engines.
Date: From 2008-10-20 16:00:00 to 2008-10-20 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Francesco Ruffino
CNR-INFM MATIS and Dipartimento di Fisica e Astronomia Univ. Catania Italy
Nanostructured Materials and Devices based on Metallic Nanoclusters

Date: From 2008-10-16 19:30:00 to 2008-10-16 20:30:00
Location: Scuola Superiore di Catania, Via S. Nullo, 5/i, Catania, Aula Conferenze
Prof. Fabio Babiloni
Department of Human Physiology, University of Rome Italy
Brain Computer Interfaces for communication and control
Abstract/Calendar
We analyze whether the use of the cortical activity estimated from non invasive EEG recordings could be useful to detect mental states related to the imagination of limb movements. Then apply such approach to drive electronic and mechanical devices by modulation of EEG only. The estimation of cortical activity was performed on high resolution EEG data related to the imagination of limb movements gathered in 15 normal healthy subjects by using realistic head models. Cortical activity was estimated in Region of Interest associated with the subject's Brodmann areas by using depth-weighted minimum norm solutions. Comparisons between surface recorded EEG and the estimated cortical activity were performed. The estimated cortical activity related to the mental imagery of limbs in the analyzed subjects is located mainly over the contralateral primary motor area. The unbalance between brain activity estimated in contralateral and ipsilateral motor cortical areas relative to the finger movement imagination is greater than those obtained in the scalp EEG recordings. With the proposed methodology users have been able to drive modulating their EEG activity several mechanical and electronic devices.
Date: From 2008-10-13 16:30:00 to 2008-10-13 17:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Massimo Mannarelli
IEEC/CSIC Universitat Autonoma de Barcelona Spain
Neutron stars and quark matter
Abstract/Calendar
Quantum chromodynamics predicts that if one can squeeze nuclear matter to the point that the number of quarks per unit volume is greater than that within a nucleon, the resulting matter cannot be described as made up of nucleons: the individual nucleons are crushed into quark matter. It remains an open question whether "liberated" quark matter can actually be present in neutron stars that have central density at most 10 times that of ordinary nuclear matter or whether stars entirely consisting of quark matter can exist. In order to understand whether neutron stars feature quark matter requires first understanding the qualitative and semi-quantitative properties of deconfined matter and then discerning how its presence within a neutron star would affect astronomically observed or observable phenomena. We discuss some of these observables which help us to rule out some phases and to whittle away the parameter space of deconfined quark matter. In part of the discussion we will employ an analogue model of gravity which is helpful in simplifying the analysis.
Date: From 2008-10-09 16:00:00 to 2008-10-09 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Maria Vela Perez
ESCET, Departamento de Matematica Aplicada, Universidad Rey Juan Carlos (Madrid) Spain
A new mathematical framework for complex systems: hypernetworks and hyper-structures
Abstract/Calendar
Social, biological and man-made complex systems are usually represented as networks, or in mathematical terms as graphs. Here we show how it is possible to retain more information about the structure of the system by using a representation in terms of hypergraphs. An hypergraph H=(X,E) is a natural generalization of a graph and consists in a vertex set X={v_1,...,v_n} and in an hyperedge set E={E_1,...,E_m}, where E_i is a subset of X with two or more than two vertices. We extend some of the useful measures such that of graph efficiency to hypergraphs. We also define the new concept of hyper-structure. If G=(X,E) is a graph with n vertices and m edges and we define a hypergraph H for the graph G, then a hyper-structure S=(X,E,H) is a triple formed by the vertex set X, the edge set E and the hyper-edge set H. We develop some definitions and mathematical properties for hypergraphs. In particular, we give estimates of the efficiency of the hyper-structure in terms of the efficiency of its associated graph and hypergraph, and we find some bounds. We apply those concepts to the optimization of some transportation systems.
Date: From 2008-10-07 16:00:00 to 2008-10-07 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Ugur Tirnakli
Department of Physics,Faculty of Science, Ege University, 35100 Izmir, Turkey TURKEY
Central Limit Behavior in Low- and High-dimensional Dynamical Systems
Abstract/Calendar
It is evident that one of the important ingredients of statistical mechanics and of probability theory is the central limit theorem. It states that the sum of N independent identically distributed random variables, after appropriately centered and rescaled, exhibits a Gaussian distribution as N → ∞. For deterministic dynamical systems, a central limit theorem is valid only if the system is sufficiently mixing. Recently the leading-order correction to the central limit theorem for the fully developed logistic map and cubic map has been analytically deduced and found to be in perfect agreement with numerical results [1]. On the other hand, due to strong temporal correlations, a standard central limit theorem is not valid when the system is at the edge of chaos. It is also shown in [1] that the probability distribution of sums of iterates of the logistic map at the edge of chaos can be well approximated with a q-Gaussian. This distribution, under suitable constraints, maximizes the entropy Sq, the basis of nonextensive statistical mechanics. A closer look has been attempted in [2] in order to better analyse the entire distribution (both the central part and the tails) to see under what conditions there is convergence to a q-Gaussian. A theoretical argument has been provided on determining the optimum value of N (the number of iterates) in order to achieve the best convergence to a q-Gaussian. These results are consistent with a large number of already available analytical and numerical evedences that the edge of chaos is well described in terms of the entropy Sq and its associated concepts. Very recent works on analysing the time series of real earthquakes [3] and model systems [4] have indicated similar tendency which points out a central limit behavior of the same kind in high-dimensional dynamical systems. [1] U. Tirnakli, C. Beck and C. Tsallis, Phys. Rev. E75 (2007) 040106(R). [2] U. Tirnakli, C. Tsallis and C. Beck, A closer look at time averages of the logistic map at the edge of chaos, preprint (2008), cond-mat/0802.1138 [3] F. Caruso et al., Phys. Rev. E75 (2007) 055101(R). [4] U. Tirnakli, Central Limit Behavior in Coherent Noise Model of Earthquakes, preprint (2008), in preparation. 1
Date: From 2008-10-07 11:00:00 to 2008-10-07 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Joachim John
Teamleader Industrial Solar Cells, IMEC Belgium
Solar Energy R&D at IMEC
Abstract/Calendar
The direct conversion of light into electrical power is a very elegant process to generate environmentally-friendly, renewable energy. This photovoltaic technology is modular, reliable and needs low maintenance effort; therefore it is suited to a large range of applications and can contribute substantially to our future energy needs. Among different concepts crystalline silicon solar cells are dominating the market of roof top installed modules (~90%). Driven by factors like silicon shortage and low cost, the roadmap of crystalline silicon solar cells is going towards thinner and thinner wafers while further increasing the efficiency. In this presentation the strategic European research agenda for photovoltaic solar energy is presented and a technology roadmap for crystalline silicon solar cells is given. Thin crystalline solar cells are developed within the solar cell technology group in IMEC in the framework of European and bilateral contracts. The latest result, 16.3% on 135µm thick multi and 17.6% on 130µm thick single crystalline wafers could be achieved with a special backside passivation stack (i-PERC, fig.1). The IMEC solar cell activity is discussed in detail. Finally, an outlook to novel solar cell concepts is depicted.
Date: From 2008-10-06 11:00:00 to 2008-10-06 12:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. John B. Murray
The Open University UK
New interpretation of the clustering of long-period comet aphelion distances

Date: From 2008-10-02 17:00:00 to 2008-10-02 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. N. H. March
Oxford University, Oxford UK
The Dirac density matrix for many-Fermion assemblies: can the ground state density itself be used as input, ranging from the nuclear surface to the electron density in molecules of biological signific

Date: From 2008-09-30 16:00:00 to 2008-09-30 18:00:00
Location: Scuola Superiore di Catania, Via S. Nullo, 5/i, Catania, da definire
Prof. Francois Gervais
University of Tours France
Optical conductivity

Date: From 2008-09-30 11:00:00 to 2008-09-30 12:30:00
Dr. Pasquale Tomasello
Università di Catania Italy
Lenard ! Chi era costui ?
Abstract/Calendar
Si presenterà e ricorderà la figura di A. E. Philipp Lenard, un grande fisico sperimentale travolto dalla sua onesta passione per la scienza e dalla politica dei terribili tempi in cui visse.
Date: From 2008-09-30 09:00:00 to 2008-09-30 11:00:00
Location: Scuola Superiore di Catania, Via S. Nullo, 5/i, Catania, da definire
Prof. Francois Gervais
University of Tours France
Gian k permittivity

Date: From 2008-09-23 11:00:00 to 2008-09-23 12:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Prof. Nino Panagia
Space Telescope Science Institute, Baltimore USA
Supernovae and Cosmology

Date: From 2008-09-18 11:30:00 to 2008-09-18 12:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Luciano Colombo
Università di Cagliari Italy
Meccanica dei Materiali a dimensione nanometrica

Date: From 2008-09-17 11:00:00 to 2008-09-17 12:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula Azzurra
Prof. Joseph Formaggio
MIT, Boston USA
Neutrino Mass, Cosmic Neutrinos and other Holy Grails

Date: From 2008-09-16 11:00:00 to 2008-09-16 12:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula Azzurra
Prof. Joseph Formaggio
MIT, Boston USA
Twilight: Results from the 3rd and Final Phase of the SNO Experiment

Date: From 2008-07-30 11:00:00 to 2008-07-30 12:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Oscar Gomis
Universidad Politecnica de Valencia Spain
Ion irradiation experiments: Some clues for the origin of the icy molecules present on the surfaces of the icy satellites

Date: From 2008-07-25 11:00:00 to 2008-07-25 12:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula B
Prof. Alfredo Iorio
Institute of Particle and Nuclear Physics - Charles University - Praga Czech Republic
Collasso del DNA e vuoto quantistico : parte I e II
Abstract/Calendar
Dopo l'introduzione dei concetti fondamentali per la trattazione del DNA e del suo collasso in strutture compatte (I), si discute il ruolo delle fluttuazioni quantistiche nel fenomeno della "Compattazione" del DNA (II).
Date: From 2008-07-10 11:00:00 to 2008-07-10 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Giovanni Raciti
Dipartimento di Fisica e Astronomia, Università di Catania Italy
Evidenza sperimentale dell'emissione di He-2 da stati eccitati di Ne-18

Date: From 2008-07-09 12:00:00 to 2008-07-09 13:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Chief Scientist Samuel Pedro Goldman
Department of Physics, Ryerson University, Toronto Canada
Unravelling the Impossible in Radiation Therapy and Computed Tomography - an Atomic Physicist's Adventure

Date: From 2008-07-09 11:00:00 to 2008-07-09 13:00:00
Prof. Roberto Ragazzoni
INAF -Astronomical Observatory of Padova
The Large Binocular Camera

Date: From 2008-07-09 11:00:00 to 2008-07-09 13:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania,
Prof. Roberto Ragazzoni
INAF -Astronomical Observatory of Padova
The Large Binocular Camera

Date: From 2008-07-08 15:30:00 to 2008-07-08 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Franco Riggi
Dipartimento di Fisica e Astronomia, Università di Catania Italy
Il progetto EEE: un network didattico e scientifico per la rivelazione dei raggi cosmici nel territorio italiano
Abstract/Calendar
Colloquium. Un rinfresco sarà servito in antiaula a partire dalle 15:30.
Date: From 2008-07-04 11:30:00 to 2008-07-04 13:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Roberto Lo Savio
CNR-INFM MATIS Italy
Influence of stoichiometry on the structural and optical properties of erbium silicate films

Date: From 2008-06-30 16:00:00 to 2008-06-30 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr.ssa Chiara Nociforo
GSI - Darmstadt Germany
Next generation experiments with RIBs at FAIR

Date: From 2008-06-26 10:00:00 to 2008-06-26 11:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula L
Prof. Terry Awes
OAK Ridge National Laboratory USA
Photon, Electron, and Jet Measurements in Heavy-Ion Collisions at RHIC and the LHC.
Abstract/Calendar
Results from RHIC have demonstrated that the dense partonic matter created in relativistic heavy-ion collisions behaves as a strongly interacting near-perfect fluid. Some of the most important results from RHIC supporting this conclusion have been based on measurements using electromagnetic calorimeters. Results from RHIC will be reviewed with an emphasis on electromagnetic calorimeter based results, with a view towards the measurements that will be made possible with the ALICE EMCal at the LHC.
Date: From 2008-06-25 10:00:00 to 2008-06-25 11:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula L
Prof. Christina Markert
The University of Texas at Austin USA
Probing the Quark Gluon Plasma on the yoctosecond scale
Abstract/Calendar
In ultra-relativistic heavy ion collisions a fireball of hot and dense matter is created. When the energy density inside the fireball is very high, liberation of partons is expected to occur and a new phase of matter, the Quark Gluon Plasma (QGP), is formed. Resonances and their decay products may interact strongly with the created medium until the system breaks up at kinetic freeze out. Thus, the physical properties of resonances, such as their masses, widths and yields, might be directly influenced by the characteristics of the surrounding phase. I will present the resonance measurements in heavy ion collisions from the RHIC experiments with respect to the hadronic interaction phase between chemical (hadronization) and thermal freeze-out. Based on the lifetimes and interaction probabilities of hadronic resonances with the partonic and hadronic medium, I will show that these measurements are relevant to determine the mechanism of chiral symmetry breaking, deconfinement conditions, and the lifetime of the partonic and hadronic phase after the collision. The significance of future resonance measurements will be shown in the context of the characterization of the QGP and further detector and accelerator upgrades at RHIC and the LHC.
Date: From 2008-06-25 10:00:00 to 2008-06-25 11:27:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula L
Prof. Christina Markert
University of Texas at Austin - Physics Department USA
Probing the Quark Gluon Plasma on the yoctosecond scale
Abstract/Calendar
In ultra-relativistic heavy ion collisions a fireball of hot and dense matter is created. When the energy density inside the fireball is very high, liberation of partons is expected to occur and a new phase of matter, the Quark Gluon Plasma (QGP), is formed. Resonances and their decay products may interact strongly with the created medium until the system breaks up at kinetic freeze out. Thus, the physical properties of resonances, such as their masses, widths and yields, might be directly influenced by the characteristics of the surrounding phase. I will present the resonance measurements in heavy ion collisions from the RHIC experiments with respect to the hadronic interaction phase between chemical (hadronization) and thermal freeze-out. Based on the lifetimes and interaction probabilities of hadronic resonances with the partonic and hadronic medium, I will show that these measurements are relevant to determine the mechanism of chiral symmetry breaking, deconfinement conditions, and the lifetime of the partonic and hadronic phase after the collision. The significance of future resonance measurements will be shown in the context of the characterization of the QGP and further detector and accelerator upgrades at RHIC and the LHC.
Date: From 2008-06-24 11:00:00 to 2008-06-24 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Pasquale Tomasello
Dipartimento di Fisica e Astronomia, Università di Catania Italy
QM al Teatro Algebrico
Abstract/Calendar
QM al Teatro Algebrico
(Ovvero di come si può far fisica microscopica dei sistemi semplici senza funzione d'onda e
equazioni differenziali, ma con operatori e vettori in Spazi di Hilbert a norma positiva.)

                                   In hoc signum
                                  [q, p] = ih/2 pi
                                       ......

La parlata è intesa maxime per  bravi e meno bravi studenti della Magistrale che abbiano masticato
un po' di QM; pur dottori, direttori e prorottori, scienziati, screanzati e scervellati, presidenti 
e renitenti, dilettanti e fornicanti potranno trovare forse interesse e qualche stimolo; perciò son 
affettuosamente invitati. Si presenterà un metodo di fattorizzazione d'un generico operatore 
hermitiano lower-bounded che permette la soluzione completa (i.e. autovalori ed autovettori) del 
problema, poi illustrato con esempi su hamiltoniane esattamente solubili( sistemi idrogenoidi, et 
similia).

Date: From 2008-06-23 15:00:00 to 2008-06-23 16:00:00
Location: IMM-CNR, Catania, Sala Campisano
Prof. Dr. Masanori Hayase
Tokyo University of Science, Faculty of Science and Technology, Department of Mechanical Engineering Japan
Microfabrication with Electrochemical Process and Its Application
Abstract/Calendar
My current work focuses on the micro fabrication of micro- and nanoscale devices in interdisciplinary area between mechanical engineering and chemistry. Examples include fuel cells, electroplating, corrosion and cell manipulation. My research group studies MEMS devices to realize new functions in the above fields using conventional micromachining technology with some electrochemical approaches. In this talk, I would like to introduce our micro fuel cell and copper electroplating for three dimensional IC packaging.
Date: From 2008-06-13 12:00:00 to 2008-06-13 13:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Primo Ricercatore Evaristo Cisbani
Istituto Superiore di Sanità - INFN/Sezione di Roma1 Italy
Opportunità di studio della struttura del nucleone al JLab, con il fascio di elettroni da 6 e 11 GeV
Abstract/Calendar
Fattori di forma e funzioni di distribuzioni dei quark sono grandezze essenziali per la comprensione della struttura del nucleone. In questa direzione, l'alta luminosità del fascio di JLab ha offerto ed offrirà opportunità sperimentali praticamente uniche alle presenti energie (fino a 6 GeV) e a quelle del prossimo futuro (fino a 11 GeV). Saranno illustrate alcune di queste opportunità, quali l'imminente esperimento sulla "Transversity" e le future misure del rapporto dei fattori di forma dei nucleoni ad alti momenti trasferiti.
Date: From 2008-06-13 11:00:00 to 2008-06-13 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Senior Scientist Franco Garibaldi
ex - Istituto Superiore di Sanità - INFN/Sezione di Roma1 Italy
Attività al JLab Hall A con il fascio da 6 GeV
Abstract/Calendar
Sarà riassunta l'attività svolta dai gruppi italiani in Hall A nel recente passato, fornendo dei dettagli per qualcuna delle linee sperimentali affrontate. Si presenta quindi l'attività in corso e nell'immediato futuro che sarà svolta con l'attuale fascio di elettroni da 6 GeV.
Date: From 2008-06-06 17:00:00 to 2008-06-06 18:00:00
Location: Dipartimento di Matematica e Informatica, Viale A. Doria, 6, Aula Magna
Prof. Giovanni Russo
Dipartimento di Matematica e Informatica, Università di Catania Italy
Alcuni aspetti della Matematica Industriale in Europa e in Italia

Date: From 2008-06-06 09:30:00 to 2008-06-06 11:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Senior Scientist Luigi Pantisano
IMEC Belgium
Challenges and future perspective for CMOS and memory devices
Abstract/Calendar
This seminar covers a broad range of active research at IMEC: Germanium and III-V compounds for future CMOS technologies - from material properties to devices, Graphene and carbonanotubes for interconnect applications as well as new dielectrics and materials for memory applications. The purpose of this seminar is to give an overview of the state-of-the art on these subjects as well as the IMEC activities. This seminar is intended for a broad audience of scientists and engineers in different fields.
Date: From 2008-06-05 16:00:00 to 2008-06-05 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Bennett Link
Montana State University USA
Neutron Stars as Dense Matter Laboratories
Abstract/Calendar
An outstanding fundamental question in physics concerns the properties of matter near and above nuclear density. Matter at supra-nuclear densities, while inaccessible in the laboratory, exists in abundance in the nearly 2000 neutron stars detected so far by radio surveys. I will describe how the interpretation of observations of neutron stars has advanced our understanding of the state and dynamics of the neutron star interior. I will conclude with discussion of what we hope to learn from future observations and theoretical efforts.
Date: From 2008-06-03 16:00:00 to 2008-06-03 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Dr. Marcello Baldo
INFN, Sez. Catania Italy
Transizione a materia di quark in oggetti astrofisici compatti
Abstract/Calendar
Colloquium. Un rinfresco sarà servito in antiaula a partire dalle 15:30.
Date: From 2008-06-03 11:30:00 to 2008-06-03 13:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Prof. Nino Panagia
Space Telescope Science Institute Baltimore, USA USA
Progenitori di Supernovae

Date: From 2008-05-29 16:30:00 to 2008-05-29 17:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Nguyen Van Giai
IPN, Orsay France
Microscopic description of the inner crust of a neutron star

Date: 2008-05-28 16:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Qingfeng Li
FIAS (Frankfurt Institute for Advanced Studies), -Frankfurt am Main Germany
Particle freeze-out through HBT Correlation in HICs from FAIR/AGS to RHIC
Abstract/Calendar
In this talk I'll present the recent results of the HBT correlation of two-identical particles (pions, kaons and Lambdas) at freeze-out in heavy ion collisions (HICs) from AGS to RHIC energies. The UrQMD transport model as well as the CRAB analyzing program are adopted. When the cascade mode is considered, the calculations are almost satisfying and well in line with the experimental data although discrepancies are not negligible. In order to solve the HBT time-related puzzle and to better understand the so-called m_T-scaling for two-identical particles, a better description of interactions of particles at early stage of HICs is required. In this work, a density-dependent Skyrme-like potential for "pre-formed" hadrons is considered. References related to this talk: Phys. Lett. B 659, 525 (2008) Phys. Rev. C 74, 064908 (2006) Phys. Rev. C 73, 064908 (2006) J. Phys. G 34, 537 (2007) J. Phys. G 34, 2037 (2007) arXiv:0802.3618 [nucl-th], accepted for publication in Phys. Lett. B
Date: From 2008-05-27 16:30:00 to 2008-05-27 17:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Nguyen Van Giai
IPN, Orsay France
The physics of neutron stars

Date: From 2008-05-26 11:30:00 to 2008-05-26 13:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Massimo Tarenghi
ALMA/ESO-Chile Chile
The status of the ALMA project as of today

Date: From 2008-05-19 11:00:00 to 2008-05-19 13:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr.ssa Giuliana Impellizzeri
CNR-INFM MATIS Italy
B implantation in Ge: electrical and structural investigations

Date: From 2008-05-08 15:30:00 to 2008-05-08 16:30:00
Location: Dipartimento di Matematica e Informatica, Viale A. Doria, 6, Aula 128
Prof. Wolfgang Wagner
Weierstrass Institute for Applied Analysis and Stochastics, Berlin Germany
Explosion properties of random fragmentation models

Date: From 2008-05-07 15:30:00 to 2008-05-07 16:30:00
Location: Dipartimento di Matematica e Informatica, Viale A. Doria, 6, Aula 128
Prof. Wolfgang Wagner
Weierstrass Institute for Applied Analysis and Stochastics, Berlin Germany
Introduction to Markov jump processes

Date: From 2008-04-30 18:00:00 to 2008-04-30 19:00:00
Location: Scuola Superiore di Catania, Via S. Nullo, 5/i, Catania, Aula Magna
Prof. Paolo De Los Rios
Lab of Statistical Biophysics, Ecole polytechnique federale de Lausanne, http://lbs.epfl.ch/ Switzerland
Configuration Space Networks: Structure, Clustering and Coarse Graining
Abstract/Calendar
Complex Systems such as biomolecules are characterized by free energy landscapes with several competing minima. It would be desirable to find the relevant ones, as they correspond to stable and metastable conformations that could be detected in experiments. Unfortunately, such conformations live in very high dimensional spaces and the energy landscapes are extremely rugged, which makes a thorough exploration, AND VISUALIZATION, of minima, maxima and saddles by all means impossible. Here we outline a strategy whereby letting the exploration be done by a Molecular Dynamics simulation of the system, and suitably encoding it into a network, can overcome several of the limitations of the conventional approaches such as the use of reaction coordinates. We also comment on what we can, and what we cannot learn from the structure of these Configuration Space Networks, and how we can treat them to find minima and saddle points.
Date: From 2008-04-30 11:30:00 to 2008-04-30 13:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Paolo Spanò
INAF-Osservatorio Astronomico di Brera Italy
Spettroscopia astronomica con i grandi telescopi ESO: da X-SHOOTER ed ESPRESSO per il VLT alla strumentazione per E-ELT

Date: From 2008-04-29 16:00:00 to 2008-04-29 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Dr. Vincenzo Antonuccio-Delogu
INAF-OACT, Catania Italy
Dark Matter/Enery e Gravitational Lensing: Cosmologia di precisione con il satellite Dune
Abstract/Calendar
Colloquium. Un rinfresco sarà servito a partire dalle 15:30.
Date: From 2008-04-28 16:00:00 to 2008-04-28 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr.ssa Monica Pepe
INFN - Sezione di Perugia Italy
L'esperimento NA62: misura di (K+ -> pi+ nu nubar) al CERN
Abstract/Calendar
L'esperimento NA62 si propone di misurare il branching ratio del decadimento ultra raro K+ -> pi+ nu nubar al SPS del CERN. Tale misure consentira' di determinare il parametro |Vtd| della matrice CKM al 10%. L'esperimento si prefigge di rivelare circa 80 eventi di segnale K+ -> pi+ nu nubar con un 10% di fondo in due anni di presa dati. Vengono qui presentate le motivazioni fisiche per tale studio, lo stato del progetto, del R&D per i rivelatori e le prospettive future dell'esperimento.
Date: From 2008-04-22 11:30:00 to 2008-04-22 13:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Donald N. B. Hall
Institute for Astronomy, University of Hawaii USA
AVALANCHE PHOTO-DIODES of Hg:Cd:Te
Abstract/Calendar
AVALANCHE PHOTO-DIODES of Hg:Cd:Te - OPENING the WAY to:
 
1) NOISELESS, PHOTON COUNTING, VISIBLE and INFRARED ARRAYS for ASTRONOMY.
2) INTENSITY INTERFEROMETRY IN THE INFRARED.
3) ENTANGLED PHOTON QUANTUM COMMUNICATIONS.

Date: From 2008-04-18 12:00:00 to 2008-04-18 13:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Prof. Artashe Petrosian
Byurakan Observatory Armenia
Comparative study of the general properties of galaxies with different nuclear activity: the case of the NGP + 30° zone galaxies
Abstract/Calendar
Il prof. Petrosian discutera' in maniera didattica le principali proprieta' osservative delle galassie attive e non. Discutera' i vari modelli interpretativi ed in particolare l'originale teoria sviluppata da Ambartsumian. Infine illustrera' il recente studio statistico su di un campione in NGP+30.
Date: 2008-04-17 16:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Graphene afternoon
Abstract/Calendar
G. G. N. Angilella, "Graphene: a bridge between condensed matter and QED"
F. Giannazzo, "Title to be announced"
R. Pucci, "Impurity effects, adsorption and chemisorption in graphene"
I. Deretzis, "Quantum resistance in ballistic molecular devices"
A. La Magna, "Anderson localization in graphene nanoribbons"
G. Falci, "Title to be announced"

Date: From 2008-04-14 11:30:00 to 2008-04-14 13:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr.ssa Elena Bruno
CNR-INFM MATIS Italy
Mechanism of Boron diffusion in amorphous Silicon
Abstract/Calendar
The mechanism for B migration in amorphous (a) Si network has been elucidated. B diffusivity in a-Si is much higher than in crystalline Si, it is transient and increases with B concentration up to 2x1020 B/cm3. At higher density, B atoms in a-Si quickly precipitate. B diffusion is indirect, mediated by dangling bonds (db) present in a-Si. The density of db is enhanced by B accommodation in the a-Si network and decreases because of a-Si relaxation. Accurate data simulations allow to extract the db diffusivity, whose activation energy is 2.6 eV. Implications of these results are discussed.
Date: From 2008-04-10 19:00:00 to 2008-04-10 20:00:00
Location: Scuola Superiore di Catania, Via S. Nullo, 5/i, Catania, Aula Magna
Eshel Ben Jacob
Maguy-Glass Chair in Physics of Complex Systems, Tel Aviv University Israel
Towards neurochip
Abstract/Calendar
Much effort has been devoted over the years to understanding how information is encoded and stored in living neural networks. After a few minutes of "crash course" in Neuroscience (to present the basic terms and the current paradigm), I will show how we used physics methods (lithography) and concepts (scaling and correlations) to create a prototype of learning Neurochip - memory and information processing chips made of live neurons. The Neurochip is interfaced with a computer for real time recording and stimulations. Using the lithography methods enabled us to study the dynamics of networks with engineered geometry. Taking physics perspective to analyze the dynamics led us to propose that information is encoded in the space of correlations according to temporal ordering. We tested the new idea by analyzing recorded human brain activity of Epilepsy patients. This new conceptual approach to coding and storage of information enabled us to imprint multiple rudimentary memories in a living neural network outside the brain - we used chemical stimulations at specific locations that were selected by analyzing the networks activity in real time according to the new encoding principle. Currently, in collaboration with Dr. Hanein, we develop a Nano-Neurochip in which the neurons are grown on specially designed islands of carbon nanotubes.
Date: From 2008-04-09 15:00:00 to 2008-04-09 16:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Prof. Paolo de Bernardis
Dipartimento di Fisica. Università di Roma La Sapienza Italy
Da BOOMERanG a B-Pol e SAGACE: misure fini della radiazione Cosmica a Microonde

Date: From 2008-04-04 11:30:00 to 2008-04-04 12:30:00
Location: IMM-CNR, Catania,
Prof. D. Alquier
University of Tours France
MEMS Electromechanical Characterization and Recent Progress in cMUT Technology
Abstract/Calendar
Developments of MEMS technology require highly sensitive electromechanical measurement technique. After a brief introduction on available techniques at LMP (university of Tours), example of MEMS structure characterisation will be reviewed. Among these microsystems, recent progress in Capacitive micromachined ultrasonic transducers (cMUTs) technology will be presented. cMUTs become competitive to the standard piezoelectric ones for ultrasound imaging applications. To reach medical field requirements, passivation or protection layer is required. Besides biocompatibility and chemical inertia properties, such a layer needs to be compatible with the semiconductor industry. As less as possible influence on the device's performance and efficient protection of the transducers in harsh environment are also required. In this line, a typical material of microelectronic PECVD silicon nitride (SiN) and a quite new arrival material in the MEMS area Parylene C are investigated to play the role of protection coating for the cMUTs. In this work, realization, characterizations and simulations of passivated cMUT cells are presented. Particular attention was paid on the protection layer deposition temperature that induces a structural modification of the top aluminium electrode and, hence, a membrane bulge. The characterization results, obtained by optical profilometry and laser Doppler vibrometry, are in good agreement with the simulations. The SiN passivation layer impact is clearly evidenced and explained. This paper concludes that SiN layer can be used for passivation with particular precautions. Nevertheless, other materials have to be investigated to fully reach medical requirements.
Date: From 2008-04-02 18:00:00 to 2008-04-02 19:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Henrik Jeldtoft Jensen
Department of Mathematics and Institute for Mathematical Sciences, Imperial College, London UK
The Tangled Nature Model of Evolutionary Ecology
Abstract/Calendar
Is the approach of Statistical Mechanics relevant to the Ecology Systems Perspective project ?
Date: From 2008-04-01 19:00:00 to 2008-04-01 20:00:00
Location: Scuola Superiore di Catania, Via S. Nullo, 5/i, Catania, Aula Magna
Prof. Henrik Jeldtoft Jensen
Department of Mathematics and Institute for Mathematical Sciences, Imperial College, London UK
A paradigm for the long time dynamics of complex systems: record dynamics in spin glasses, superconductors, biological evolution and hungry ants

Date: From 2008-04-01 16:00:00 to 2008-04-01 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Sebastiano Albergo
Dip. Fisica e Astronomia, Univ. Catania, and INFN, Sez. Catania Italy
Colloquium: La partenza del programma sperimentale p-p ad LHC: problematiche e aspettative

Date: From 2008-04-01 11:30:00 to 2008-04-01 12:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Adam C. Hunniford
Center for Plasma Physics, Queen University Belfast Ireland
Low energy ions and biomolecules

Date: From 2008-03-28 11:45:00 to 2008-03-28 12:45:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Lucilla De Arcangelis
Dipartimento di Ingegneria Informatica - Seconda Università di Napoli Italy
Correlations in earthquake occurrence
Abstract/Calendar
Although earthquakes are phenomena of great complexity, some simple general laws govern the statistics of their occurrence. Interestingly, some of these most important laws exhibit scale invariance properties, as the Gutenberg-Richter law, the Omori law and the space clustering of epicentres. If the space and temporal clustering are considered a general and distinct feature of seismic occurrence, the question of the existence of correlations between magnitudes of subsequent earthquakes is intensively debated, since the standard seismological approach assumes independence of earthquake magnitudes: an earthquake "does not know how large it will become". Our recent analysis of the California Catalogue has shown the existence of non-zero spatio-temporal magnitude correlations. Namely, earthquakes tend to occur, with higher probability, close in time, space and magnitude to previous events. Moreover, considering an earthquake as a point event in time, a branching model based on a dynamical scaling hypothesis, relating magnitude to time and space, has been proposed to explain the observed magnitude correlations. Our model reproduces the observed magnitude correlations and a number of statistical properties of seismic occurrence, suggesting that these naturally originate solely from this scaling hypothesis.
Date: From 2008-03-18 15:30:00 to 2008-03-18 16:30:00
Location: IMM-CNR, Catania, Sala Campisano
Pietro Delugas
Origine delle proprietà dielettriche in ossidi funzionali per microelettronica
Abstract/Calendar
Il raggiungimento di miniaturizzazioni sempre più spinte nei dispositivi microelettronici richiede la ricerca di materiali isolanti alternativi con grandi permettività dielettriche. L'esempio più noto di tale evoluzione è quello riguardante i cosiddetti materiali high-kappa i quali, in ragione delle loro permettività elettriche generalmente superiori di più di un fattore 5 rispetto alla permittività del SiO2, andranno a sostituire quest'ultima nelle giunzioni MOS. Altro materiale le cui proprietà hanno recentemente riscosso grande interesse è il CaCu3Ti4O12 (CCTO) la cui costante dielettrica, giustamente definita colossale, assume valori dell'ordine di 10^5 a temperatura ambiente. É chiaro che queste variazioni di scala della permettività sono causate dai differenti meccanismi di schermaggio dielettrico in azione in questi materiali. La comprensione di tali meccanismi da un punto di vista atomistico pu`o costituire un razionale utile nella scelta e nell'impiego di questi materiali. Nella prima parte di questo seminario basandomi sulle risultanze di alcuni calcoli numerici discuterò come l'alta costante dielettrica negli ossidi ad alto kappa sia legata alle proprietà vibrazionali e quindi alla struttura reticolare di questi ossidi. La seconda parte del seminario sarà invece dedicata alla discussione dell'origine della costante dielettrica colossale. La spiegazione di questo fenomeno è al momento una questione ancora aperta e soggetta a ipotesi contrastanti. In questo seminario verrà in particolare discussa la possibile relazione tra i difetti di punto in questo materiale e le sue proprietà dielettriche.
Date: From 2008-03-18 11:30:00 to 2008-03-18 12:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Riccardo Claudi
INAF - Padova Italy
Sphere: il cacciatore di pianeti per VLT

Date: From 2008-03-11 15:30:00 to 2008-03-11 16:00:00
Location: Scuola Superiore di Catania, Via S. Nullo, 5/i, Catania,
Sonde Sushant
Scuola Superiore di Catania Italy
Diode analysis of leakage current in advanced substrate material

Date: From 2008-03-06 15:30:00 to 2008-03-06 16:00:00
Location: Scuola Superiore di Catania, Via S. Nullo, 5/i, Catania,
Jens Eriksson
Scuola Superiore di Catania Italy
Advanced materials for sensors and devices

Date: From 2008-03-05 11:30:00 to 2008-03-05 12:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Cecilia Ceccarelli
Laboratoire d'Astrophysique de Grenoble France
Complex Organic Molecules in Solar-type Star Forming Regions
Abstract/Calendar
The first stages of the star evolution are characterized, among other things, by the formation of many Complex Organic Molecules (COMs). As the time passes, the molecular complexity increases. Before the collapse sets in, in the pre-stellar condensations, at least some simple COMs like formaldehyde and methanol are synthesized on the grain surfaces by hydrogenation and oxygenation of O, N, C, CO... The birth of a protostar at the center warms up the surrounding matter up to 100K or more, with two consequences: the previously formed grain ice mantles sublimate injecting into the gas phase their molecular content, and, second, new and more complex molecules are synthesized in the gas phase because of new formation routes opening up at the large gas temperatures and the availability of the molecules synthesized on the grain surfaces. The warm regions where many abundant COMs are found are called hot corinos and cores in low and high mass protostars respectively. What and how much COMs are formed at the end depend on the mass of the protostar, as suggested by some comparative studies between hot cores and corinos. Surprising enough, low mass protostars apparently synthesize larger quantities of COMs with respect to high mass protostars. This may be the result of both mechanisms at work for the COMs formation and destruction. I will review the recent advances in this field, the study of molecular complexity in the hot corinos of solar type protostars and the possible implications on planets, meteorites and comets formation.
Date: From 2008-02-26 11:30:00 to 2008-02-26 12:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Joseph L. Hora
Harvard-Smithsonian Center for Astrophysics USA
Highlights from the First Four Years of the Spitzer Space Telescope Mission

Date: From 2008-02-26 11:00:00 to 2008-02-29 14:30:00
Location: Palazzo Vermexio e Palazzo del Governo, Siracusa,
V Congresso Nazionale di Archeometria. Scienza e Beni Culturali
Abstract/Calendar
L'AIAr (Associazione Italiana di Archeometria), fondata nel 1992, conta più di 300 Soci ed ha come scopo la promozione e sviluppo delle Metodologie Scientifiche per i Beni Culturali. Come le analoghe Associazioni presenti in vari paesi, l'AIAr si pone come obiettivi: * favorire la reciproca conoscenza e la promozione di collaborazioni tra gli operatori scientifici nel campo dei Beni Culturali; * facilitare il dialogo tra la Cultura Scientifica e la Cultura Umanistica, argomento che certamente sta a cuore a quanti, pur avendo una formazione orientata a problematiche tecnico-scientifiche, hanno interesse alla conoscenza e tutela del Patrimonio Culturale. Il V Congresso nazionale di Archeometria, che si svolgerà a Siracusa dal 26 al 29 febbraio 2008, è rivolto a ricercatori ed a studiosi che operano nel settore dei Beni Culturali e si propone di presentare i più recenti sviluppi delle metodologie archeometriche così come i risultati ottenuti dalla loro applicazione a casi studio. Sono previste sia comunicazioni orali che sessioni poster nelle varie aree tematiche dell'Archeometria secondo le finalità dell'Associazione. Nel corso del Congresso sarà tenuta l'assemblea annuale dei Soci AIAr ed il rinnovo delle cariche "Rinnovo cariche AIAr" dell'Associazione per il triennio 2008-2010.
Date: From 2008-02-20 12:00:00 to 2008-02-20 13:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Siegbert Hagmann
Inst. F. Kernphysik, Univ. Frankfurt and GSI-Darmstadt Germany
Trends and opportunities for Atomic Physics Research at the new FAIR accelerator facility
Abstract/Calendar
I will present a short overview of the current status of the new accelerator project FAIR at GSI with the new double synchrotron rings and the multi-storage rings. The key features of the new facility, which provides intense relativistic beams of stable and unstable nuclei, are introduced and their relation to the anticipated experimental programs in nuclear structure physics and antiproton physics is shown. The main emphasis in this overview is given to the atomic physics program with unique opportunities which will be provided e.g. by bare U92+ ions with kinetic energies continuously variable between relativistic energies corresponding to ƒx up to ƒ° 35 down to kinetic energies of such ions in traps corresponding to fractions of a Kelvin.
Date: 2008-02-18 15:00:00
Location: IMM-CNR, Catania, Sala Campisano
A. Sciuto
Wide band gap materials based UV photo-detectors
Abstract/Calendar
Visible blind UV detectors are candidate for all applications requiring UV detection in presence of visible light such as for example monitoring pollutions, UV astrophysics and medical applications. In this context, wide band gap materials are the best solution and thanks to its high material quality and device processing maturity, 4H-SiC is actually the best choise. Many international groups work on visible blind SiC photodetectors and we proposed an innovative interdigit structure for the Schottky front electrode to directly expose the optically active device area to radiation and to enhance the response specially at low wavelength, an issue particularly interesting for example for astrophysics applications. Moreover, we investigated the effect on the optical properties of fabricated devices of oxide passivation layer grow. The radiation hardness, typically credited to SiC, is a crucial aspect for the applications in UV aero-space field. In this context, we investigated the effects of Si^+ -ion irradiation on the performances of 4H-SiC interdigit Schottky UV photodiodes reproducing in the laboratory the effects of aero-space irradiation. Contact: vito.raineri@imm.cnr.it
Date: 2008-02-15 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Lidia Ferreira
Departamento de Física, I. S. T., Lisbon Portugal
An overview of proton radioactivity

Date: From 2008-02-12 16:00:00 to 2008-02-12 17:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula Azzurra
Dr. Aldo Bonasera
INFN-LNS Italy
Misura del fattore astrofisico S in plasma caldi e densi

Date: From 2008-02-07 10:00:00 to 2008-02-07 11:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Hans Muller
CERN Switzerland
Electronics for the Electromagnetic Calorimeters in ALICE
Abstract/Calendar
The PHOS (PHoton Spectrometer) and the EMCal (ElectroMagnetic Calorimeter) are the two electromagnetic calorimeters of the ALICE detector at LHC. The PHOS is a highly granular calorimeter, which will be arranged into 17920 PbWO4 crystals when fully implemented. The EMCal detector is based on the Shashlik tecnology and it will be segmented in 12672 towers, made by 77 alternating layers of Pb and scintillator. Since the light yield per unit of energy deposit in the EMCal is similar to that of the PHOS and the electronic noise performance requirements of the EMCal are less stringent than those of PHOS due to its larger intrinsic energy resolution, the PHOS readout electronics has been adopted also for the EMCal readout, with only minor modifications. A description of the PHOS-EMCal Electronics Architecture and its performances will be given.
Date: From 2008-01-30 11:00:00 to 2008-01-30 12:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Nicola Napolitano
INAF-Osservatorio Astronomico di Capodimonte Italy
The evolution of the galaxy Red Sequence in simulated clusters and groups
Abstract/Calendar
N--body + hydrodynamical simulations of galaxy groups and clusters formation in a LCDM cosmology are used in order to follow the evolution of the colour-magnitude relation in two clusters and in 12 groups. The simulations show that more luminous/massive early-type galaxies move to a Red Sequence (RS) while quenching their star formation and finally set upon a Dead Sequence (DS) once they have almost stopped forming stars. Fainter galaxies keep having significant star formation out to very recent epochs and lie broader around the RS. Environment plays a role as galaxies in groups and cluster outskirts hold star formation activity longer than the central cluster regions. However galaxies experiencing infall from the outskirts to the central parts keep star formation on until they settle on to the DS of the core galaxies. This very sharp ``red and dead'' sequence turns out to be universal, its slope and scatter being almost independent of the redshift (since at least z~1.5) and environment. I compare these results with observations and discuss how they match the current galaxy evolution paradigm.
Date: From 2008-01-25 11:30:00 to 2008-01-25 12:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Massimo Turatto
INAF Osservatorio Astrofisico di Catania Italy
Supernovae ed altri racconti

Date: From 2008-01-21 09:00:00 to 2008-01-21 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Proprietà intellettuale nel settore informatico
Abstract/Calendar
La Proprietà intellettuale nel settore informatico Lunedì 21 gennaio alle 9 (aula magna, Dipartimento di Fisica e Astronomia), si inaugura il ciclo di seminari su proprietà intellettuale e cultura imprenditoriale. Lunedì 21 gennaio alle 9 si terrà il primo incontro, per il settore informatico, del ciclo di seminari itineranti sul tema "Strumenti e procedure di tutela dei titoli di proprietà intellettuale & cultura imprenditoriale" nell'aula magna "Ettore Majorana" del Dipartimento di Fisica e Astronomia (via Santa Sofia 64, Cittadella Universitaria). Il ciclo di seminari è rivolto a ricercatori, ai docenti e a tutto il personale addetto alla ricerca, e agli studenti specializzandi e di livello avanzato. Seguiranno gli incontri per il settore ingegneristico e Life science nelle sedi di riferimento. É possibile registrarsi a uno o più incontri cliccando qui (scarica il programma). Il ciclo di seminari è organizzato dal Liaison Office con la collaborazione di esperti nazionali e internazionali e docenti di vari atenei. Il nostro Ateneo vanta il riconoscimento nazionale e internazionale della sua produzione di ricerca scientifica di elevato livello, e il tentativo dell'Ilo è di diffondere nella comunità accademica i valori di business e d'impresa, affinchè vengano riconosciuti come fondamentali per la valorizzazione dei risultati scientifici e per lo sviluppo del territorio, favorendo la nascita di nuove imprese science-based.
Date: From 2008-01-17 12:00:00 to 2008-01-17 13:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula da definire
Prof. Johannes Knapp
School of Physics and Astronomy - University of Leeds - UK UK
Ultra High Energy Cosmic Rays: Simulation Issues and Mass Composition Analysis

Date: From 2008-01-16 12:00:00 to 2008-01-16 13:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula da definire
Prof. Johannes Knapp
School of Physics and Astronomy - University of Leeds UK
P. Auger Observatory: recent results on UHECRs anisotropy & GZK features and their physical implications

Date: From 2008-01-08 11:30:00 to 2008-01-08 12:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Prof. Gianfranco Vidali
Syracuse University, Syracuse, NY USA
Formation of Molecular Hydrogen on Low Temperature Surfaces
Abstract/Calendar
The study of the formation of molecular hydrogen on low-temperature surfaces is of interest both because it enables for the exploration of elementary steps in the heterogeneous catalysis of a simple molecule and because of its application in astrochemistry. My presentation begins with an introduction highlighting the important role that molecular hydrogen has in key physical and chemical processes occurring in space. I will then show how laboratory experiments coupled with theoretical tools can be used to shed light on the formation of molecular hydrogen on dust grain analogues in simulated environments of the interstellar medium. I will conclude by presenting new challenges that this line of work has uncovered. This work has been supported by NASA. Further information on the research in Vidali's group can be obtained from the following Web site: http://physics.syr.edu/astro
Date: From 2007-12-19 16:00:00 to 2007-12-19 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Pangon Vincent
IPHC/DRS Strasbourg - Universite Louis Pasteur Strasbourg - CNRS/IN2P3 France
Symmetry breaking from top loop corrections: a renormalization group analysis

Date: From 2007-12-10 16:00:00 to 2007-12-10 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Orlando Panella
INFN - Sezione di Perugia Italy
Forze di Casimir-Polder in teorie con lunghezza minima.
Abstract/Calendar
L'esistenza di una risoluzione minima nella misura della posizione di una particella e' una generica previsione della gravita' quantistica e della teoria delle stringhe. Nell'ambito di modelli quantisitici basati su un principio di indeterminazione generalizzato (GUP) si studia il contributo della lunghezza minima, all'ordine perturbativo piu' basso, alle forze di Casimir-Polder fra due atomi (molecole) neutri. Si trova una correzione additiva al ben noto risultato dell'elettrodinamica quantistica standard che predice un potenziale di interazione che scala a grandi distanze come r^{-7}. La correzione dovuta alla lunghezza minima scala con r^{-9} nello stesso regime di distanze.
Date: From 2007-12-06 11:00:00 to 2007-12-06 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula L
Prof. Stephen Saddow
University of South Florida (Tampa) USA
3C-SiC films on Si for biotechnological applications
Abstract/Calendar
Silicon Carbide's (SiC) chemical inertness, superior tribological properties, hydroxyapatite-like osseointegration, and well-known haemocompatibility make it a very promising candidate for in-vitro biosensors, biologically interfaced neural networks and intelligent implantable medical devices. In order for this semiconductor to become a material of choice for biotechnological applications its biocompatibilily needs to be compared to that of silicon (Si), which is the leading crystalline semiconductor. In this work, the biocompatibility of 3C-SiC was investigated and compared to Si by culturing two lines of mammalian cells directly on crystalline 3C-SiC(001) and Si(001) substrates. The 3C-SiC(001) substrates were epilayers hetero-epitaxially grown on Si(001) crystals by chemical vapour deposition (CVD) in a hot-wall reactor. The epilayer's crystallinity was confirmed by X-ray diffraction (XRD) while their morphology was evaluated using atomic force microscopy (AFM). Cultured cell morphology and proliferation were studied using fluorescent microscopy and MTT assays, respectively. The reported results show that crystalline 3C-SiC is a more biocompatible material than Si and suggest exciting perspectives for the use of hetero-epitaxial SiC in bio-applications. The Si substrate used for the epi-growth would allow for cost-effective and straightforward electronic integration, while the SiC surface would constitute a more biocompatible and versatile interface between the electronic and biological world. This seminar will begin with the growth of 3C-SiC on Si substrates, followed by the use of these films to assess the bio-compatibility of SiC. The measurement of biocompatibility can take on many forms, from monitoring the interaction between a man-made substrate with biological matter, to following strict standards of biocompatibility. In this work we have chosen to assess the biocompatibility of SiC as outlined above. Prof. Saddow is presently on Sabbatical with IMM-CNR, Dr. F. La Via's group, and welcomes the opportunity to discuss his research interests and open new collaborations in this research topic. For more information contact Dr. La Via or Dr. Saddow at CNR-IMM sezione di Catania Stradale Primosole 50 I-95121 Catania, Italy voice: +39 095 5968229 (c/o Dr. La Via) fax: +39 095 5968312 e-mail: saddow@ieee.org www.eng.usf.edu/~saddow
Date: From 2007-11-16 16:00:00 to 2007-11-16 17:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Nevena Markova
Institute of Astronomy - Bulgarian Academy of Science BULGARY
Quantitative spectroscopy of Hot Massive Stars, theory against observation

Date: From 2007-11-16 10:00:00 to 2007-11-16 11:00:00
Location: aula da definire,
Dr. Martin Veselsky
Institute of Physics, SAS, Bratislava Slovacchia
Nuclear reactions at Fermi energies

Date: From 2007-11-14 12:00:00 to 2007-11-14 13:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Prof. Erik Hoeg
Niels Bohr Institute, Copenhagen University Denmark
Astrometry and photometry from space: Hipparcos, Tycho, Gaia

Date: From 2007-11-13 16:00:00 to 2007-11-13 17:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula Azzurra
Dr. Martin Veselsky
Institute of Physics of SASc, Bratislava Slovak Republic
Production of very neutron-rich exotic nuclei

Date: From 2007-11-07 16:00:00 to 2007-11-07 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Boris Ermolaev
Ioffe institute-St. Petersburg Russia
Theoretical description of Deep-Inelastic Scattering at small x
Abstract/Calendar
This is a short review on different theoretical approaches to description of the structure functions of Deep-Inelastic Scattering. It includes the well-known methods like DGLAP and BFKL and more recent approach of Infrared Evolution Equations for the Polarized DIS.
Date: From 2007-10-22 11:00:00 to 2007-10-22 12:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Prof. Dr. Boris Shustov
Director of the Institute of Astronomy of Russian Academy of Science - Principal Investigator of the Russia
Role of astrochemistry at very early stages of star formation

Date: From 2007-10-22 11:00:00 to 2007-10-22 12:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Prof. Dr. Boris Shustov
Institute of Astronomy, Russian Academy of Science Russia
Role of astrochemistry at very early stages of star formation

Date: From 2007-10-19 11:30:00 to 2007-10-19 12:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Santi Cassisi
INAF-Osservatorio Astronomico di Teramo Italy
Galactic Globular Clusters: the "anomalies" of their stellar population(s)
Abstract/Calendar
It had always been considered that the value of studying GCs is that they host simple, single stellar populations, i.e., that stars belonging to the same cluster share the same distance, age and chemical composition. However, in recent times, on the basis of accurate photometric and spectroscopic investigations, several exciting results have been obtained, such as the existence of anti-correlations between some chemical elements, the presence of multiple stellar populations in the same cluster, and peculiar features along the Horizontal Branch. Many of these outcomes severely challenge our understanding of stellar evolution and of evolution/formation mechanism of stellar clusters. We review the main anomalies, recently observed in galactic GCs, and discuss the main evolutionary scenari suggested for interpreting these empirical evidence.
Date: From 2007-10-19 11:00:00 to 2007-10-19 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Gustavo Medina Tanco
UNAM Mexico
P. Auger Observatory: first evidence for anisotropy and GZK features in the highest energy cosmic ray events
Abstract/Calendar
L'Osservatorio P. Auger sta completando le installazioni degli ultimi rivelatori dell'array di superficie e, dal marzo 2007, prende dati con tutti i 24 telescopi di fluorescenza. L'analisi degli eventi di piu' alta energia ha prodotto due risultati particolarmente importanti strettamente connesi tra di loro. Si tratta della evidenza sperimentale di anisotropia nel campione di eventi di piu' alta energia e di GZK features nello spettro energetico. Il prof. G. Medina Tanco, astronomo presso l'Università di Città del Messico, presenterà lo status dell'Osservatorio e i risultati dell'analisi di anisotropia su piccola e grande scala. I risultati dell'analisi di anisotropia mostrano che gli eventi si correlano con distribuzione di materia luminosa, aprendo in tal modo prospettive completamente nuove in Astronomia.
Date: From 2007-10-18 11:00:00 to 2007-10-18 12:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Prof. Donald N. B. Hall
University of Hawaii USA
Development of infrared arrays for Hubble Space Telescope and James Web Space Telescope and the initial science program for Wide Field Camera 3

Date: From 2007-10-05 16:00:00 to 2007-10-05 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Karuppanan Sekar
SemEquip, Inc. USA
ClusterIon Implant Technology
Abstract/Calendar
venerdì 5 ottobre 2007, ore 16
Date: From 2007-10-05 16:00:00 to 2007-10-05 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Karuppanan Sekar
SemEquip, Inc. USA
ClusterIon Implant Technology
Abstract/Calendar
venerdì 5 ottobre 2007, ore 16
Date: From 2007-10-04 16:00:00 to 2007-10-04 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Alfredo Iorio
Institute of Particle and Nuclear Physics, Charles University, Prague Czech Republic
Struttura dei virus: da Crick e Watson ad una nuova ipotesi
Abstract/Calendar
Si ipotizza che certe strutture (scars), formate da elettroni distribuiti su una sfera in modo tale da minimizzare il potenziale repulsivo Coulombiano ( problema di Thomson) e sperimentalmente osservate in cristalli sferici di polistirene, possano essere rilevanti per estendere la costruzione classica di Caspar e Klug della struttura dei virus. Si discutono alcuni esperimenti per verificare l'ipotesi proposta.
Date: From 2007-10-04 11:00:00 to 2007-10-04 12:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Paul Byrne
Department of Earth Sciences, The Open University, Milton Keynes MK7 UK
Flank structures on Martian volcanoes

Date: From 2007-10-02 17:00:00 to 2007-10-02 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. N. H. March
Oxford University, Oxford UK
Boson superfluid 4He and homogeneous Fermion (electron) liquid: fingerprints of many-body excitations in ground-state properties

Date: From 2007-10-02 10:00:00 to 2007-10-02 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula M
Presentazione della piattaforma http://www.licosa.com ver. 2.0
Abstract/Calendar
LICOSA S.p.A. in collaborazione con RES s.r.l. agente per la Sicilia ha il piacere di invitare i Sigg. Responsabili di Bilioteca, operatori di Biblioteca, Docenti, alla presentazione ufficiale della nuova piattaforma http://www.licosa.com ver. 2.0 servizio aggiuntivo al sistema bibliotecario. La Dott.ssa Letizia Gentile, amministratore delegato di Licosa S.p.A., illustrerà il servizio nelle sue finalità. Il Sig. Luca Valenti, Webmaster di Licosa S.p.A., guiderà i partecipanti nella navigazione, illustrando gli aspetti più significativi del nuovo sito.
10:00 Inizio lavori
11:10 Pausa caffè
11:25 Ripresa lavori
12:00 Fine lavori

Date: From 2007-09-28 11:00:00 to 2007-09-28 12:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Prof. Joseph Silk
Savillian Profesor of Astronomy, University of Oxford UK
Feedback in Galaxy Formation

Date: From 2007-09-24 11:00:00 to 2007-09-24 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr.ssa Maria Spiropulu
CERN - Ginevra Switzerland
Discovery Physics at the LHC
Abstract/Calendar
The LHC and its two-general purpose experiments ATLAS and CMS present us with unprecedented challenges in terms of complexity and size in the field of high-energy physics. This talk will discuss the the challenges of extracting new physics from a billion collisions per second, and the path from detection to discovery focusing especially on the first data and SUSY-like signatures/topologies.
Date: From 2007-09-17 11:00:00 to 2007-09-17 12:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Luca Teriaca
MPI für Sonnensystemforschung Germany
Search for photospheric footpoints of quiet Sun transition region loops
Abstract/Calendar
The footpoints of quiet Sun Transition Region (TR) loops do not seem to coincide with the photospheric magnetic structures appearing in traditional low-sensitivity magnetograms. In this context, we look for the so-far unidentified photospheric footpoints of TR loops using G-band bright points (BPs) as proxies for photospheric magnetic field concentrations. A comparison of TR measurements with SoHO/SUMER and photospheric magnetic field observations obtained with the Dutch Open Telescope is carried out. Photospheric BPs are associated with bright TR structures, but they seem to avoid the brightest parts of the structure. BPs appear in regions that are globally redshifted, but they avoid extreme velocities. TR explosive events are not clearly associated with BPs. The observations are not inconsistent with the BPs being footpoints of TR loops, although we have not succeeded to uniquely identify particular BPs with specific TR loops.
Date: From 2007-09-17 09:00:00 to 2007-09-21 19:00:00
Joint XXI AIRAPT and XLV EHPRG International Conference on High Pressure Science and Technology

Date: From 2007-09-06 11:00:00 to 2007-09-06 12:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Prof. Michael S. Bessell
Research School of Astronomy and Astrophysics, Mount Stromlo Observatory Australia
SkyMapper Southern Sky Survey
Abstract/Calendar
SkyMapper is a 1.3m telescope with an 8-sq degree field of view. It has an integrated 16kx16k CCD mosaic with 0.5" pixels covering 5.7-sq degrees. It is located at Siding Spring Observatory and will have first light in early 2008. It will be fully automated and will conduct a multi-color, multi-epoch survey of the southern hemisphere known as the Southern Sky Survey. There are 6 filters, u,v,g,r,i,z; u like Stromgren u, v like DDO 38, griz like SDSS griz. It is particularly suited for stellar classification work and will provide temperatures, gravities, metallicities and positions with unprecedented detail for stars down to 21 magnitude. We also have an Halpha filter that will be used to identify young M dwarfs and other pre-main sequence stars. I will discuss the instrument and several of the scientific programs that will be undertaken.
Date: From 2007-09-03 11:00:00 to 2007-09-03 12:00:00
Location: Osservatorio Astrofisico, Via. A. Doria, 6, Aula Ovest
Dr. Andreas Korn
Uppsala Astronomical Observatory Sweden
Diffusion in old stars

Date: From 2007-07-12 10:00:00 to 2007-07-12 19:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
MEETING NAZIONALE PLS OFI-FISICA

Date: From 2007-07-09 09:00:00 to 2007-07-29 19:00:00
Location: Scuola Normale Superiore, Pisa, Italy, Centro di Ricerca Avanzata "Ennio De Giorgi"
Workshop on "Many-body theory of inhomogeneous superfluids"
Abstract/Calendar
The workshop aims at reviewing and furthering recent advances in (A) Superfluid turbulence and vortex entanglement, and (B) Inhomogeneous superconductivity. Several speakers (to be announced) will be invited. In addition, it is hoped that young research scientists, from SNS and the University of Pisa, and from other Italian Universities, will participate in the Workshop. The workshop will be directed by Emeritus Professor N. H. March (Oxford University U.K.) and Professor M. P. Tosi (Scuola Normale Superiore, Pisa, Italy). For more information, contact G. G. N. Angilella and Marco Polini (Scientific Secretaries).
Date: From 2007-07-02 08:30:00 to 2007-07-05 13:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Conferenza Internazionale CTNEXT07 su "Complexity, Metastability and Nonextensivity"
Abstract/Calendar
La conferenza CTNEXT07 è un meeting satellite della maggiore conferenza internazionale di meccanica statistica STATPHYS23, che si svolgerà a Genova dal 9 al 13 Luglio 2007, e nella quale ogni tre anni si assegna la Medaglia Boltzmann. L'evento di Catania ospiterà illustri studiosi di meccanica statistica fra cui i due scienziati premiati con la medaglia Boltzmann nell'ultima edizione del 2004, il Prof. E.G.D. Cohen della Rockefeller University ed il Prof. H.E. Stanley della Boston University. I principali temi della conferenza di Catania sono i seguenti:
    * Modelli e  dinamica dei sistemi complessi 
    * Meccanica statistica nonestensiva
    * Dinamica  vetrosa e metastabilità
    * Reti e  sincronizzazione
    * Applicazioni interdisciplinari di meccanica statistica

Date: From 2007-06-28 16:30:00 to 2007-06-28 17:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Paul Stevenson
Rice University, Houston, Texas USA
The long-range interaction in massless (lambda phi^4)_4 theory and its Renormalization-Group description

Date: From 2007-06-28 11:00:00 to 2007-06-28 12:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Prof. Hugh Summers
University of Strathclyde, Scozia & JET - Joint European Taurus UK
Atomic data and analysis for the plasma environment

Date: From 2007-06-26 17:30:00 to 2007-06-26 18:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula A
Prof. Ruggero Vaglio
Università di Napoli Italy
L' "Oxide Electronics" ed il Centro CNR-INFM Coherentia

Date: From 2007-06-22 11:00:00 to 2007-06-22 12:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Giovanni Pareschi
Sviluppo di ottiche in SiC per telescopi spaziali e “ground-based”, e possibili spin-off
Abstract/Calendar
Il Carburo di Silicio (SiC) è un materiale molto performante, particolarmente adatto per la realizzazione di componenti ottici, grazie ai suoi parametri termo-meccanici favorevoli, come la densità e al coefficiente di espansione termico bassi, e gli alti valori di conducibilità termica, durezza e modulo elastico. Inoltre, il SiC presenta una notevole resistenza agli shock termici, mentre la sua durezza intrinseca permette di ottenere superfici superpulite fino al livello di pochi Angstroem, con una notevole resistenza ai graffi e agli agenti di invecchiamento. Diversi sono i metodi per la produzione del SiC, spesso caratterizzati da notevoli differenze tra le proprieta' del materiale, ma che possono essere tra loro combinati e ottimizzati per la realizzazione di elementi ottici. In questo seminario saranno presentate le attività di sviluppo in SiC, portate avanti negli ultimi anni presso l'Osservatorio Astronomico di Brera, per la realizzazione di specchi astronomici per telescopi spaziali (in vista, ad esempio, della missione per raggi X EDGE proposta per il programma Cosmic Visions di ESA) e "ground-based" (come il grande telescopio E-ELT attualment studiato da ESO). Sarà infine descritta una'attività in corso che mira all'applicazione si spin-off della tecnologie sviluppate in ambito astronomico in altri settori come, ad esempio, quelli della nanolitografia e biomedicale.
Date: From 2007-06-22 11:00:00 to 2007-06-22 12:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Giovanni Pareschi
INAF - Osservatorio Astronomico di Brera Italy
Sviluppo di ottiche in SiC per telescopi spaziali e "ground-based", e possibili spin-off
Abstract/Calendar
Il Carburo di Silicio (SiC) è un materiale molto performante, particolarmente adatto per la realizzazione di componenti ottici, grazie ai suoi parametri termo-meccanici favorevoli, come la densità e al coefficiente di espansione termico bassi, e gli alti valori di conducibilità termica, durezza e modulo elastico. Inoltre, il SiC presenta una notevole resistenza agli shock termici, mentre la sua durezza intrinseca permette di ottenere superfici superpulite fino al livello di pochi Ångstrm, con una notevole resistenza ai graffi e agli agenti di invecchiamento. Diversi sono i metodi per la produzione del SiC, spesso caratterizzati da notevoli differenze tra le proprieta' del materiale, ma che possono essere tra loro combinati e ottimizzati per la realizzazione di elementi ottici. In questo seminario saranno presentate le attività di sviluppo in SiC, portate avanti negli ultimi anni presso l'Osservatorio Astronomico di Brera, per la realizzazione di specchi astronomici per telescopi spaziali (in vista, ad esempio, della missione per raggi X EDGE proposta per il programma Cosmic Visions di ESA) e "ground-based" (come il grande telescopio E-ELT attualment studiato da ESO). Sarà infine descritta una'attività in corso che mira all'applicazione si spin-off della tecnologie sviluppate in ambito astronomico in altri settori come, ad esempio, quelli della nanolitografia e biomedicale.
Date: From 2007-06-22 10:00:00 to 2007-06-22 13:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Inform, Lab. arch, Fis. Amb, Lab. Elettr, Lab. Rivel
Stage Scuola Superiore di Catania

Date: From 2007-06-21 16:30:00 to 2007-06-21 17:30:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula A
Prof. Klaus Wiesemann
Ruhr-Universitat Bochum Germany
Plasma diagnostics for ECR-ion-sources

Date: From 2007-06-21 15:30:00 to 2007-06-21 16:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula M
Prof. Roberto Raimondi
Dipartimento di Fisica Università di Roma Tre Italy
Spin-Hall effect: a review

Date: From 2007-06-21 11:00:00 to 2007-06-21 12:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula A
Prof. Klaus Wiesemann
Ruhr-Universitat Bochum Germany
Nonlinear wave processes

Date: From 2007-06-19 11:00:00 to 2007-06-19 12:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula A
Prof. Klaus Wiesemann
Ruhr-Universitat Bochum, Bochum Germany
Waves in plasma

Date: From 2007-06-19 11:00:00 to 2007-06-19 12:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Prof. Ananda Santra
Bhaba Atmoic Research Centre, Mumbai, India
Chiral Symmetry and Nuclear Matter Equation of State

Date: From 2007-06-18 16:00:00 to 2007-06-18 17:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula A
Prof. Klaus Wiesemann
Ruhr-Universitat Bochum Germany
ECR-Ion-source related Plasma physics and basic processes (part II)

Date: From 2007-06-18 11:30:00 to 2007-06-18 12:30:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula A
Prof. Klaus Wiesemann
Ruhr-Universitat Bochum Germany
ECR-Ion-source related Plasma physics and basic processes (part I)

Date: From 2007-06-14 11:00:00 to 2007-06-14 12:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr.ssa Maria Pia Di Mauro
INAF-IASF Roma Italy
Progressi, problemi e prospettive in Elio- e Astrosismologia

Date: From 2007-06-11 09:00:00 to 2007-06-15 19:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
EXOCT 2007 - International Symposium on Exotic States of Nuclear Matter
Abstract/Calendar
The meeting will focus on the applications of the nuclear matter theory to the physics of neutron stars and exotic nuclei :
i. The Nuclear Equation of State (EOS)
   (many-body methods, QGP phase transition)
ii. Exotic Matter in Neutron Stars
    (crust structure, hyperons, kaon condensation, quark matter)
iii. Thermal and dynamical evolution of Neutron Stars
     (pairing, glitches, vortices, cooling)
iv. Constraints on the EOS from exotic nuclei, heavy ion collisions, and astrophysical observations

Date: From 2007-06-01 11:30:00 to 2007-06-01 12:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula C
Prof. Guenther Dissertori
ETH Zurich Switzerland
Hard Process at LHC

Date: From 2007-05-31 15:30:00 to 2007-05-31 16:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula B
Dr. Andreas Osterloh
Institut fuer Theoretische Physik, Universitaet Hannover Germany
Entanglement at quantum phase transitions: condensed matter meets quantum information

Date: From 2007-05-29 17:00:00 to 2007-05-29 19:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Premiazione "Olimpiadi di Fisica" - Catania

Date: From 2007-05-24 11:30:00 to 2007-05-24 12:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Prof. Nino Panagia
Osservazioni Ultraviolette di Supernovae

Date: From 2007-05-14 10:00:00 to 2007-05-16 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
IV Meeting D.R.A.G.O. (Didattica in Rete Applicando i Gruppi Online) Il nucleo atomico dalla sua scoperta ad oggi

Date: From 2007-05-14 00:00:00 to 2007-06-25 00:00:00
Location: Dipartimento di Matematica e Informatica, Viale A. Doria, 6,
Dottorato in Matematica per la Tecnologia: Mini corsi di ottimizzazione
Abstract/Calendar

VEDERE SITO WEB PER IL CALENDARIO, LE AULE, GLI ABSTRACTS

Gruppo 1: 14-18 Maggio 2007

Michael Hintermueller (Uni Graz)
michael.hintermueller@uni-graz.at
Constrained and unconstrained optimization

Arnd Roesch (RICAM Linz)
arnd.roesch@oeaw.ac.at
Theory of optimal control with differential equations


Gruppo 2: 21-25 Maggio 2007

Alfio Borzi (Uni Graz)
alfio.borzi@uni-graz.at
Multilevel methods in optimization with PDE models

Stefan Volkwein (Uni Graz)
stefan.volkwein@uni-graz.at
Modellreduction using proper orthogonal decomposition


Gruppo 3: 11-15 Giugno 2007

Docente: Prof. Giuseppe Nicosia
Ottimizzazione Evolutiva

Date: From 2007-05-11 15:00:00 to 2007-05-11 19:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
2 PLS Meeting (Progetto Lauree Scientifiche)
Abstract/Calendar
15.00-15.30 Saluti ed apertura dei lavori
15.30-15.45 Il Progetto Lauree Scientifiche - Fisica a Catania
15.45-17.00 Testimonianze dal mondo del lavoro:
            Dott. A. Cosentino (EU-ARTECH - Perugia)
            Dott. S. Russo (ICRAM -Roma)
            Dott. F. Aleo (ENEL - Catania)
17.00-17.10 Pausa
17.10-19.30 Gli Studenti relazionano sulle attività del PLS

Date: From 2007-05-11 11:30:00 to 2007-05-11 12:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Noah Brosch
Director, the Wise Observatory, Tel Aviv University Israel
Early-type fascinating galaxies as astrophysical tools

Date: From 2007-04-26 19:30:00 to 2007-04-26 20:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Marco Bersanelli
Università di Milano Italy
Ragione e realtà: l'avventura della conoscenza scientifica
Abstract/Calendar
Marco Bersanelli, ordinario di Astrofisica presso l'Università di Milano, è attualmente impegnato nello studio delle anisotropie della radiazione cosmica di fondo, nell'ambito della missione spaziale che utilizza il satellite Planck.
Date: From 2007-04-26 17:00:00 to 2007-04-26 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula B
Dr. Luca Lanzanò
Dottorando Università di Catania e INFN-LNS, Catania Italy
Possibilità di indagine sugli effetti biologici di soluzioni tramite misure di luminescenza ultra-debole
Abstract/Calendar
Dopo un breve cenno sulla tecnica utilizzata verrá presentato un apparato sperimentale di rivelazione con il quale si possono effettuare dei test di luminescenza ultra-debole su colture cellulari immerse in varie soluzioni.
Date: From 2007-04-26 16:00:00 to 2007-04-26 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula B
Dr. Alessandro Avolio
Centro di Omeopatia, Catania Italy
Omeopatia: Memoria dell'acqua o effetto placebo?
Abstract/Calendar
Dopo una breve introduzione sulla storia dell'omeopatia si esamineranno le differenze tra le varie medicine alternative. Ci si concentrerá poi sulle leggi che regolano la medicina omeopatica e sulla preparazione dei rimedi e delle diluizioni. Chiuderá il seminario un cenno sulle possibili teorie scientifiche alla base dell'omeopatia.
Date: From 2007-04-20 08:00:00 to 2007-04-20 09:00:00
Location: ST Microelectronics,
Prof. Ezio Andreta
Politecnico di Milano e Politecnico di Torino Italy
La fabbrica del futuro nella società della conoscenza
Abstract/Calendar
La partecipazione è limitata a max 10 persone. Contattare valeria.formica@st.com per prenotazioni e per l'orario (da definire). Abstract: Migrazione delle attività manifatturiere verso economie a basso costo di manodopera. Deindustrializzazione accompagnata da perdita di produttività e di capacità di R&D. Dalla prima rivoluzione industriale alla nuova rivoluzione globale industriale. Ricerca, Tecnologia e Innovazione possono essere i fattori chiave per invertire il trend. 5 le principali risposte alle sfide della globalizzazione: - dalla competizione individuale allalleanza collettiva e cooperativa - dallorganizzazione individuale alla struttura di rete - dalla stazionaria localizzazione geografica del business alla rete riconfigurabile - dalla linearità alla gestione della complessità attraverso adattabilità
Date: From 2007-04-18 16:00:00 to 2007-04-18 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Francesco Aleo
ENEL Ricerca Italy
I programmi di ENEL Ricerca a Catania nel settore dell'energia solare: fotovoltaico innovativo e solare termodinamico

Date: From 2007-04-04 11:00:00 to 2007-04-04 12:00:00
Location: Dipartimento di Scienze Chimiche, Aula A
Prof. Michele Parrinello
Scuola Normale Superiore, Pisa Italy
La sfida della simulazione atomistica di sistemi complessi

Date: From 2007-03-28 10:30:00 to 2007-03-28 11:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Oscar Adriani
Universita' di Firenze Italy
L'esperimento LHCf a LHC
Abstract/Calendar
L'esperimento LHCf prendera' dati al collider LHC a partire da fine 2007, studiando le collisioni p-p a 14 TeV nel centro di massa, equivalenti a una energia di 2*10^17eV nel sistema del laboratorio; l'esperimento si propone di misurare lo spettro di impulso di fotoni, pioni neutri e neutroni a piccolissimo angolo nelle interazioni p-p; tali spettri dipendono dalle sezioni d'urto di produzione di adroni, e forniscono uno strumento di calibrazione dei modelli di interazione nucleare ad una energia rilevante per lo studio degli spettri energetici dei raggi cosmici di altissima energia, fornendo anche informazioni fondamentali per la risoluzione del problema GZK. Uno degli aspetti piu'controversi della Fisica dei raggi cosmici di altissima energia e' infatti legato alla metodologia di estrazione degli spettri energetici che fa largo uso delle informazioni Monte Carlo. Una calibrazione di detti Monte Carlo su dati reali permettera' di eliminare la principale sorgente di errore sistematico.
Date: From 2007-03-23 16:30:00 to 2007-03-23 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Tomasello Pasquale
Dipartimento di Fisica e Astronomia, Università di Catania Italy
W. Heisenberg ed Il Principio d'Indeterminazione
Abstract/Calendar
Verrà presentato e commentato il lavoro di W. Heisenberg ove per la prima volta vengono intordotte le relazioni di indeterminazione.
Date: From 2007-03-22 16:00:00 to 2007-03-22 19:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Giovanni Raciti
Dipartimento di Fisica e Astronomia, Università di Catania Italy
Nuove frontiere della Fisica nucleare: Nuclei esotici

Date: From 2007-03-15 09:30:00 to 2007-03-16 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna + Aula Informatica
Prof. Castorina P. - Dr. Chiorboli - Prof.ssa Tricomi
Progetto Lauree Scientifiche Masterclass: "Una giornata fra le particelle"

Date: From 2007-03-14 11:30:00 to 2007-03-14 12:30:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula Conferenze
Dr. Carlos Bertulani
Dept. of Physics and Astronomy, Univ. of Tennessee USA
Nuclear spectroscopy with knockout reactions

Date: From 2007-03-13 11:30:00 to 2007-03-13 12:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Luigina Feretti
Emissione radio in ammassi di galassie

Date: From 2007-03-13 11:30:00 to 2007-03-13 12:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Luigina Feretti
Istituto di Radioastronomia INAF, Bologna Italy
Emissione radio in ammassi di galassie

Date: From 2007-03-13 09:00:00 to 2007-03-13 17:00:00
Location: Facolta' di Ingegneria, Edificio Didattica, V.le A. Doria, 6, Aula Magna
Prof. Roberto Barbera
UNIV. CATANIA e INFN Italy
Grid Open Day all'Università di Catania
Abstract/Calendar
Grid Open Day all'Università di Catania 13 Marzo 2007 - ore 9.00 Facoltà di Ingegneria, Edificio Didattica - Viale A. Doria, 6 Il Grid Open Day, organizzato dal Consorzio COMETA (http://www.consorzio-cometa.it), di cui l'Università di Catania è uno dei membri costituenti, ha l'obiettivo di sensibilizzare la Comunità Accademica catanese circa l'esistenza e lo stato dell'e-Infrastruttura grid che si sta costruendo in Sicilia. Il programma del Convegno, (http://indico.ct.infn.it/conferenceOtherViews.py?view=standard&confId=8) prevede sia dei key-note speech introduttivi sull'uso di grid in Italia ed in Europa nell'ambito di diverse discipline scientifiche sia delle presentazioni sulle attività che si stanno già svolgendo in questo campo all'interno del nostro Ateneo. Il Convegno sarà seguito, nei giorni 14 e 15 Marzo, da un Grid Tutorial (http://indico.ct.infn.it/conferenceDisplay.py?confId=9) teorico-pratico sull'uso di grid nel quale verranno fornite tutte le istruzioni necessarie all'accesso e all'uso dell'e-Infrastruttura siciliana. La partecipazione al Convegno è completamente gratuita ma, al fine di predisporre al meglio la logistica, è gradita la registrazione che può essere fatta via web alla pagina http://indico.ct.infn.it/confRegistrationFormDisplay.py/display?confId=8.
Date: From 2007-03-12 16:00:00 to 2007-04-12 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Informatica
Prof. Roberto Barbera
Univ. di Catania e INFN Italy
Corso Introduttivo di Grid Computing
Abstract/Calendar
Il Corso Introduttivo di Grid Computing si terra nell'Aula Informatica del Dipartimento di Fisica e Astronomia dell'Universita' di Catania dal 12 Marzo al 12 Aprile 2007 ed e' dedicato agli studenti di Corso di Laurea e di Dottorato di Ricerca (ma e' aperto a chiunque sia interessato a seguirlo). Il corso ha lo scopo di introdurre all'uso di una griglia computazionale quale piattaforma di calcolo e di storage per applicazioni scientifiche, siano esse sequenziali o parallele, batch o interattive. DOCENTI Le lezioni del corso saranno impartite dai seguenti docenti: Valeria Ardizzone (INFN Catania) Roberto Barbera (Universita' di Catania) Tony Calanducci (INFN Catania) Emidio Giorgio (INFN Catania) PRE-REQUISITI E' richiesta una conoscenza di base del sistema operativo Unix (in particolare, Linux) e di "shell programming" nonche' quella di almeno un linguaggio di programmazione (C, C++, Fortran 77/90/95, Java). Un utile "primer" per la programmazione in ambiente Unix Shell si puo' trovare alle seguenti pagine web: - http://www-128.ibm.com/developerworks/library/l-bash.html - http://www-128.ibm.com/developerworks/library/l-bash2.html - http://www-128.ibm.com/developerworks/library/l-bash3.html Inoltre, la Guida dell'Utente del grid middleware che verra' utilizzato durante le esercitazioni e' disponibile in rete in diversi formati: - https://edms.cern.ch/file/722398/1.1/gLite-3-UserGuide.html - https://edms.cern.ch/file/722398/1.1/gLite-3-UserGuide.pdf - https://edms.cern.ch/file/722398/1.1/gLite-3-UserGuide.ps PROGRAMMA Il programma e' visionabile alla pagina: http://indico.ct.infn.it/conferenceOtherViews.py?view=standard&confId=10. REGISTRAZIONE Per ragioni logistiche, potranno essere accettati massimo 25 studenti per cui la registrazione e' obbligatoria e va fatta entro l'11 Marzo 2007 compilando il form web: http://indico.ct.infn.it/confRegistrationFormDisplay.py/display?confId=10.
Date: From 2007-03-06 10:00:00 to 2007-03-06 11:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Julio Rodriguez Martino
INFN - Sez. di Roma2 - Tor Vergata (Roma) Italy
Pierre Auger Observatory: Status and first results
Abstract/Calendar
A general introduction to the field will be shortly discussed. The present status of the Pierre Auger Observatory (Malargue, Argentina) will be presented. The first results on energy spectrum, anisotropy, photon and neutrino flux limits will be reported.
Date: From 2007-03-01 16:30:00 to 2007-03-01 17:30:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Sala riunioni
Prof. Gianni Pavan
Università di Pavia e CIBRA Italy
La popolazione dei cetacei nel Mediterraneo. Aspetti multidisciplinari del progetto NEMO-km3

Date: From 2007-02-26 17:00:00 to 2007-02-26 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Dr. Kurt Scharnberg
I. Institut für Theoretische Physik, Universitat Hamburg Germany
Potential scattering in metals and unconventional superconductors
Abstract/Calendar
Strong potential scattering in unconventional superconductors is an important and frequently discussed topic, bacause it is generally accepted that such defects create states near the gap nodes and thus have a profound effect on the low temperature properties. To simplify the calculations, the defect potentials are often represented by delta-functions of varying strengths. However, it is elementary to show that delta-function potentials do not scatter free particles in two or three dimensions. One can escape this uncomfortable conclusion by considering particles confined to an energy band of finite width and we shall present an application to graphene. For free particles one has to take the finite range of the defect potentials into account, which in two dimensions requires the solution of a two-dimensional integral equation for the T-matrix: a non-trivial problem! We shall present numerically exact results for the local density of states in the vicinity of a single defect and the self-energy obtained by taking ensemble averages.
Date: From 2007-02-20 11:00:00 to 2007-02-20 12:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Schneider Nick (1) and Erica Ellingson (2)
Laboratory for 1) Atmospheric and Space Physics, University of Colorado; 2) Center for Astrophysi USA
(1) "Jupiter's Magnetosphere: A Volcano-Powered Nebula" (1); "Dark Energy in Distant Galaxy Clusters"

Date: From 2007-02-16 09:00:00 to 2007-02-16 19:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula Conferenze
Catania workshop on nuclear and neutrino astrophysics
Abstract/Calendar
In occasione del 15mo anno di attività nel campo dell'astrofisica nucleare e particellare
Date: From 2007-02-16 00:00:00 to 2007-02-17 00:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula Conferenze
XV ANNIVERSARIO 1992-2007 CATANIA WORKSHOP ON NUCLEAR AND NEUTRINO ASTROPHYISICS
Abstract/Calendar
Cari Colleghi, in occasione del quindicesimo anniversario dall'inizio della collaborazione tra ricercatori dell'Università di Catania (Dipartimento di Fisica e Astronomia e Dipartimento di Metodologie Fisiche e Chimiche per l'Ingegneria), dell'Istituto Nazionale di Astrofisica (INAF-Osservatorio Astrofisico di Catania) e dell'Istituto Nazionale di Fisica Nucleare (INFN-Laboratori Nazionali del Sud e Sezione di Catania) su problematiche di astrofisica nucleare e particellare, siamo lieti di inviarvi il secondo annuncio per il "Catania Workshop on Nuclear and Neutrino Astrophysics". Scopo del workshop è quello di presentare le attività dei gruppi di ricerca coinvolti nel campo della astrofisica nucleare e particellare a Catania e favorire l'interscambio di competenze e informazioni. Il gran numero di adesioni e richieste di contributi, seguite al primo annuncio, ci ha indotto ad estendere la durata del workshop a due giorni. Ulteriori informazioni sul workshop sono disponibili all'indirizzo web: http://nemoweb.lns.infn.it/wnna Coloro che intendono partecipare al workshop e non sono ancora registrati sono invitati a registrarsi al più presto riempiendo il modulo elettronico disponibile all'indirizzo: http://nemoweb.lns.infn.it/wnna/registrazione.htm Le iscrizioni per i partecipanti si chiuderanno il 31 Gennaio 2007. Il workshop prevede ampio spazio per la presentazione di contributi orali inerenti l'astrofisica nucleare e particellare, sperimentale e teorica. Gli speaker avranno a disposizione circa 15 + 5 minuti per la discussione. Le iscrizioni per coloro che intendono presentare un contributo orale si chiuderanno il 15 Gennaio 2007. Gli speaker saranno contattati dal Comitato Organizzatore e dovranno presentare un abstract di 100 parole. Le richieste verranno selezionate dal Comitato Scientifico entro il 31 Gennaio 2007. I proceeding delle comunicazioni accettate verranno pubblicati in una edizione speciale del Bollettino dell'INAF-Osservatorio Astrofisico di Catania.
Date: From 2007-02-12 11:00:00 to 2007-02-12 12:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula Conferenze
Chief Scientist Francis A. Cucinotta
Johnson Space Center NASA - Space Radiation Program USA
Space Radiation and Voyages to the Earth's Moon and Mars

Date: From 2007-02-09 10:00:00 to 2007-02-09 16:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, AULE B-E-M
OLIMPIADI DI FISICA

Date: 2007-01-26 15:30:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula Conferenze
Prof. Vissani Francesco
Università dell'Aquila e INFN-LNGS
Neutrini prodotti in emissioni di Supernova

Date: From 2007-01-26 10:30:00 to 2007-01-26 11:30:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula Conferenze
Prof. Francesco Vissani
Università dell'Aquila e INFN-LNGS
Oscillazioni di neutrino

Date: From 2007-01-25 16:00:00 to 2007-01-25 17:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula Conferenze
Prof. Francesco Vissani
Università dell'Aquila e INFN-LNGS
Oscillazioni di neutrino

Date: From 2007-01-18 19:30:00 to 2007-01-18 21:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Giorgio Israel
Università di Roma Italy
La scienza tra utilitarismo e ricerca della verità
Abstract/Calendar
Organizzata dall'Associazione culturale Euresis e dalla SISSIS, con il patrocinio del Dipartimento di Fisica e Astronomia, Giovedi 18 Gennaio,con inizio alle 19.30, presso l'Aula Magna del Dipartimento, si terrà una conversazione-dibattito sul tema "La scienza tra utilitarismo e ricerca della verità", con il prof. Giorgio Israel, ordinario di Storia della Matematica presso l'Università "La Sapienza" di Roma. Il prof. Israel è autore di numerosi studi e testi recenti nel campo della storia delle scienze e della cultura scientifica, e collabora a numerosi quotidiani nazionali su tematiche di interesse scientifico.
Date: From 2006-12-22 10:00:00 to 2006-12-22 11:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Marco Mazza
Boston University USA
Dinamica eterogenea dell'acqua sottoraffreddata

Date: From 2006-12-21 17:00:00 to 2006-12-21 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Salvatore La Rosa
Sincrotrone ELETTRA, Trieste Italy
Spectromicroscopy studies using ELETTRA Synchrotron Radiation Facility

Date: From 2006-12-20 18:00:00 to 2006-12-20 19:00:00
Location: Dipartimento di Matematica e Informatica, Viale A. Doria, 6,
Dr. Alexander Khe
Lavrentyev Institute for Hydrodynamics, Novosibirsk Russia
Hyperbolicity of Equations of Stationary 3D Long Waves in Compressible Media

Date: From 2006-12-20 17:00:00 to 2006-12-20 18:00:00
Location: Dipartimento di Matematica e Informatica, Viale A. Doria, 6,
Dr. Alexander Shevyrin
Computational Aerodynamics Lab, Institute of Theoretical and Applied Mechanics, Novosibirsk Russia
Optical Trap of Gases: Numerical Results of Direct Simulation by Monte-Carlo Method
Abstract/Calendar
The direct simulation Monte-Carlo method (DSMC) is modified for simulation of gas flows with taking into account the interaction with the light radiation of non-resonant frequency. The optical trap due to the gradient force inside optical lattice arises in this case. Short review of application of optical trapping for gas acceleration will be performed. The results of numerical studying of the effect of intermolecular collisions on the developing of optical trap will be presented.
Date: From 2006-12-19 15:45:00 to 2006-12-19 16:45:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula L
Prof. Pietro Liò
University of Cambridge, Computer Laboratory UK
Introduzione alla Bioinformatica

Date: From 2006-12-18 11:00:00 to 2006-12-18 12:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
INAF-Trigrid open day
Abstract/Calendar
Seminari di presentazione della componente INAF di TRIGRID VL.
Date: From 2006-12-14 11:00:00 to 2006-12-14 12:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula Conferenze
Dr. Eric Bonnet
IPN-Orsay France
Multifragmentation of heavy systems and signals of liquid-gas phase transitions

Date: From 2006-12-13 11:00:00 to 2006-12-13 12:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Philippe Parent
Lab. de Chimie Physique-Matiére et Rayonnment, CNRS et Université Pierre et Marie Curie, Paris France
The soft X-ray irradiation of water ice studied by X-ray absorption spectroscopy

Date: From 2006-12-13 09:30:00 to 2006-12-13 13:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Roberto Barbera
Dipartimento di Fisica e Astronomia, Univ. Catania, and INFN, Sez. Catania Italy
Grid Open Day
Abstract/Calendar
La riunione, aperta a tutti gli interessati, ha lo scopo di annunciare l'apertura dell'infrastruttura di calcolo del Progetto TriGrid VL, di mostrare alcuni esempi del suo utilizzo da parte di gruppi operanti all'interno della Sezione INFN, del LNS e del Dipartimento e di spiegare a tutti come poterne diventare utenti. A questo scopo, durante il meeting, sarà possibile effettuare in tempo reale la richiesta dei certificati personali necessari per accedere all'infrastruttura (per coloro che interverranno muniti di valido documento di identità). Il programma della riunione è disponibile alla pagina http://indico.ct.infn.it/conferenceDisplay.py?confId=1.
Date: From 2006-12-12 17:00:00 to 2006-12-12 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Giuseppe Faraci
Dipartimento di Fisica e Astronomia, Università di Catania Italy
Esperimenti con radiazione di sincrotrone
Abstract/Calendar
Primo di due seminari rivolti principalmente a studenti e dottorandi.
Date: From 2006-12-05 09:00:00 to 2006-12-05 13:30:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula Conferenze
INFN - IBA DAY

Date: From 2006-12-04 09:30:00 to 2006-12-04 13:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula Conferenze
I primi 30 anni dei Laboratori Nazionali del Sud

Date: From 2006-12-01 12:00:00 to 2006-12-01 13:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Adam Jacholkowski
CERN Switzerland
LHC Detector Alignment (status and adopted strategies)
Abstract/Calendar
In September of this year the first LHC Detector Alignment Workshop was held at CERN. Selected highlights of this workshop will be presented with emphasis on the alignment challenges of the LHC experiments in view of the next year first physics runs.
Date: From 2006-12-01 11:00:00 to 2006-12-01 12:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula A
Dr. George Souliotis
Texas A&M University USA
Neutron-Rich Rare Isotope production at Fermi Energies and Application to the Texas A&M Radioactive Beam Upgrade Project

Date: From 2006-12-01 11:00:00 to 2006-12-01 12:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula A
Dr. George Souliotis
Texas A&M University USA
Neutron-Rich Rare Isotope production at Fermi Energies and Application to the Texas A&M Radioactive Beam Upgrade Project

Date: From 2006-11-30 16:00:00 to 2006-11-30 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula L
Prof. Yamir Moreno
University of Zaragoza Spain
Paths to Synchronization on Complex Networks
Abstract/Calendar
The understanding of emergent collective phenomena in natural and social systems has driven the interest of scientists from different disciplines during decades. Among these phenomena, the synchronization of a set of interacting individuals or units occupies a privileged position because its ubiquity in the natural world. In this paper, we show how local patterns of synchronization emerge differently in homogeneous and heterogeneous complex networks, driving the process towards a certain global synchronization degree following different paths. The dependence of the dynamics on the coupling strength and on the topology is unveiled. This study provides a new perspective and tools to understand this emerging phenomena.
Date: From 2006-11-30 12:00:00 to 2006-11-30 13:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Adam Jacholkowski
CERN Switzerland
Detector alignment techniques with charged particle tracks
Abstract/Calendar
In spite of the development of many hardware alignment techniques, the ultimate detector alignment precision can be reached only with the software methods using tracks. Two most popular methods of the detector alignment with tracks will be presented and illustrated on simple examples.
Date: From 2006-11-29 11:00:00 to 2006-11-29 12:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Giacomo Mulas
INAF, Osservatorio Astronomico di Cagliari Italy
Photophysics of interstellar small carbonaceous particles (or large carbonaceous molecules)

Date: From 2006-11-28 16:00:00 to 2006-11-28 17:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula E
Dr.ssa Teresa Caltabiano
Ufficio Ricerca, Università di Catania Italy
Strumenti e opportunità per la ricerca nel 7° Programma Quadro dell'Unione Europea
Abstract/Calendar
Il seminario illustrerà quanto finora è noto su strumenti, articolazione e budget previsti per il 7° Programma Quadro (2007-2013). Il 7° Programma Quadro è nella fase finale di approvazione. I primi bandi per progetti potrebbero essere pubblicati dalla seconda metà del mese di Dicembre 2006.
Date: From 2006-11-24 11:30:00 to 2006-11-24 12:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Prof. Günther Rüdiger
Magnetic instabilities in the laboratory and astrophysical applications

Date: From 2006-11-23 11:30:00 to 2006-11-23 12:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Gianpiero Tagliaferri
INAF - Osservatorio Astronomico di Brera Italy
Swift e REM: nuovi risultati nello studio dei GRB (ma non solo...)

Date: From 2006-11-14 16:00:00 to 2006-11-14 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Mario Chavez
Cognitive Neurosciences and Brain Imaging Laboratory, CNRS Paris France
Complex networks: a new framework for the study of brain dynamics
Abstract/Calendar
Networks of dynamical units constitute models of many natural systems. Examples range from biological, neural and chemical oscillators to the Internet, electrical power grids and transportation networks. Many of these networks exhibit complex connectivity patterns (such as the small-world and scale-free properties) that play a key role on the collective behavior of the interconnected units. In this talk I will briefly present some findings relating the complex wiring of the brain architecture, and some collective neural behaviors. My talk will focus on the major concepts and results recently achieved in the study of the structure and dynamics of complex neural networks, and summarize the relevant applications of these ideas in many different disciplines, ranging from biology to medicine.
Date: From 2006-11-10 18:39:00 to 2006-11-10 19:39:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Mario Chavez
Cognitive Neurosciences and Brain Imaging Laboratory, CNRS Paris France
Complex networks: a new framework for the study of brain dynamics
Abstract/Calendar
Networks of dynamical units constitute models of many natural systems. Examples range from biological, neural and chemical oscillators to the Internet, electrical power grids and transportation networks. Many of these networks exhibit complex connectivity patterns (such as the small-world and scale-free properties) that play a key role on the collective behavior of the interconnected units. In this talk I will briefly present some findings relating the complex wiring of the brain architecture, and some collective neural behaviors. My talk will focus on the major concepts and results recently achieved in the study of the structure and dynamics of complex neural networks, and summarize the relevant applications of these ideas in many different disciplines, ranging from biology to medicine.
Date: From 2006-11-09 16:30:00 to 2006-11-09 17:30:00
Location: Dipartimento di Scienze Chimiche, Aula A
Dr.ssa Valeria Nicolosi
Trinity College, University of Dublin Ireland
Nanotubes and Nanowires: tiny but mighty. Un viaggio nel mondo monodimensionale

Date: From 2006-11-09 15:30:00 to 2006-11-09 16:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Francesco Ruffino
Università di Catania, and MATIS CNR-INFM Italy
Size-dependent Schottky barrier height in self-assembled gold nanoparticles on 6H-SiC

Date: From 2006-11-06 17:00:00 to 2006-11-06 18:00:00
Location: Dipartimento di Matematica e Informatica, Viale A. Doria, 6, Aula Seminari
Prof. Mikhail Ivanov
Computational Aerodynamics Laboratory, Russian Academy of Sciences, Novosibirsk, Russia Russia
Basics of Direct Simulation Monte Carlo (DSMC) and High Altitude Aerothermodynamic Applications

Date: From 2006-11-06 11:00:00 to 2006-11-06 12:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula Azzurra
Prof. Stefan Typel
GSI Germany
Indirect methods for nuclear astrophysics

Date: From 2006-11-01 10:00:00 to 2006-11-01 11:00:00
Location: Hotel La Perla Ionica, Acireale (Catania), ITALY,
Dr. D. Clowe (1), H. Zhato (2)
(1) Steward Obs., Univ. of Arizona, (2) Univ. of St. Andrews, UK
Has Dark Matter really been detected?
Abstract/Calendar
As a special event within the "INAF/COSMOCT School on Gravitational Lensing" , a special session on the detection of Dark Matter from the weak gravitational lensing analysis of the "Bullet Cluster" will take place. Dr D. Clowe (Steward Obs., Univ. of Arizona) and Dr. H. Zhato (Univ. of St. Andrews, UK) will compare their interpretation of the same data, and discuss whether they fit better with a Dark Mater scenario or with a recent relativistic theory o gravity, alternative to General Relativity, known ad TeVeS (Bekenstein, 2004).
Date: From 2006-10-30 09:00:00 to 2006-11-03 17:00:00
Location: Hotel La Perla Ionica, Acireale (Catania), ITALY,
Dr. Antonuccio Vincenzo
INAF-Osservatorio Astrofisico di Catania and Astrophysics, University of Oxford, UK Italy
INAF-COSMOCT Autumn School on Gravitational Lensing
Abstract/Calendar
INAF-COSMOCT Autumn School on Gravitational Lensing, October 30 - November 3, 2006
Date: From 2006-10-27 15:30:00 to 2006-10-27 16:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Roberto Lo Savio
Dipartimento di Fisica e Astronomia, Università di Catania Italy
Erbium silicate: a new approach for optoelectronic applications of Er-based materials

Date: From 2006-10-26 10:00:00 to 2006-10-27 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Roberto Barbera
Grid Industry Day (reminder)
Abstract/Calendar
Con il patronato dell'Istituto Nazionale di Fisica Nucleare (http://www.infn.it) e del Consorzio COMETA (http://www.consorzio-cometa.it), il 26 e 27 Ottobre prossimi si svolgerà a Catania, presso il Dipartimento di Fisica e Astronomia dell'Università (Campus Scientifico "La Cittadella Universitaria", via S. Sofia, 64), il quarto evento della serie di Grid Industry Day organizzati e promossi dal progetto EGEE (Enabling Grids for e-Science, www.eu-egee.org), co-finanziato dalla Commissione Europea e coordinato dal CERN di Ginevra. L'Industry Day di Catania si pone l'obiettivo di mostrare al mondo dell'industria, in particolare a quello delle Piccole e Medie Imprese (PMI), i vantaggi dell'uso di una infrastruttura di calcolo a "a griglia" e di offrire l'opportunità di un confronto per l'elaborazione di un Grid commerciale reale ed accessibile. Sarà inoltre un'occasione unica per conoscere meglio i progetti Grid in corso attualmente nel Mezzogiorno, grazie a una realtà - quella siciliana- già ampiamente attiva e all'avanguardia in questo senso. Hanno già confermato la loro partecipazione: APC, APRILIA/PIAGGIO, DATAMAT/FINMECCANICA, FERRARI, FIAT, FLUENT, HP, IBM, MICROSOFT, NICE, ORACLE, SIEMENS e STAR, oltre a diverse PMI siciliane ed ai Consorzi di calcolo operanti nel Meridione d'Italia. Le infrastrutture Grid consentono l'utilizzo di risorse di calcolo e di storage provenienti da un numero enorme di calcolatori interconnessi da una rete ad alta velocità per risolvere problemi computazionali di larga scala in ambito scientifico e ingegneristico . Sviluppatesi originariamente in seno alla fisica, il loro impiego è già da oggi esteso alla biologia, all'astronomia, alla finanza, alle telecomunicazioni, e all'automotive, Alcuni tra i maggiori specialisti italiani e stranieri nell'ambito del Grid spiegheranno meglio le prospettive di questo mercato in forte crescitache, si prevede, sostituirà fra una decina di anni le infrastrutture web attuali. La partecipazione a queste giornate è gratuita ma i posti sono limitati per cui Vi invitiamo a registrarVi al più presto alla pagina: http://egeena4. ct.infn.it/industry_day/registration.php. Per maggiori informazioni sull'Industry Day di Catania potete contattare il Prof. Roberto Barbera (roberto.barbera@ct.infn.it) oppure visitare il sito EGEE: http://www.eu-egee.org/cataniaday . Il programma dettagliato della giornata è visionabile alla pagina: http://agenda.consorzio-cometa.it/fullAgenda.php?ida=a066.
Date: From 2006-10-26 00:00:00 to 2006-10-27 00:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Roberto Barbera
Università di Catania Italy
La GRID incontra il mondo dell’industria.
Abstract/Calendar
Si svolgerà il 26 e 27 Ottobre presso la Sezione di Catania dell'Istituto Nazionale di Fisica Nucleare, sita all'interno del Dipartimento di Fisica e Astronomia dell'Università d (Campus Scientifico "La Cittadella Universitaria", via S. Sofia, 64), il quarto evento della serie di Grid Industry Day organizzati e promossi dal progetto EGEE (Enabling Grids for eScience, www.eu-egee.org), co-finanziato dalla UE, e coordinato dal CERN di Ginevra . L'Industry Day di Catania si pone l'obiettivo di mostrare al mondo dell'industria, in particolare a quello delle Piccole e Medie Imprese (PMI), i vantaggi dell'uso dell'infrastruttura di EGEE e di offrire l'opportunità di un confronto per l'elaborazione di un Grid commerciale reale ed accessibile. Sarà inoltre un'occasione unica per conoscere meglio i progetti Grid in corso attualmente nel Mezzogiorno, grazie a una realtà - quella siciliana- già ampiamente attiva e all'avanguardia in questo senso. In particolare saranno presentati due nuovi progetti, PI2S2 (http://www.pi2s2.it) e TriGrid VL (http://www.trigrid.it/), finanziati rispettivamente dal MIUR e dalla Regione Siciliana e che vedono il coinvolgimento di tre tra i maggiori Enti di Ricerca nazionali quali 'Istituto Nazionale di Fisica Nucleare (INFN), l'Istituto Nazionale di Geofisica e Vulcanologia (INGV) e l'Istituto Nazionale di Astrofisica (INAF), il contributo delle Università di Catania, Messina e Palermo nonché quello di alcune PMI siciliane e non. Le infrastrutture Grid consentono l'utilizzo di risorse di calcolo e di storage provenienti da un numero enorme di calcolatori interconnessi da una rete ad alta velocità per risolvere problemi computazionali di larga scala in ambito scientifico e ingegneristico . Sviluppatesi originariamente in seno alla fisica, il loro impiego è già da oggi esteso alla biologia, all'astronomia, alla finanza, alle telecomunicazioni, e all'automotive, Alcuni tra i maggiori specialisti italiani e stranieri nell'ambito del Grid spiegheranno meglio le prospettive di questo mercato in forte crescitache, si prevede, sostituirà fra una decina di anni le infrastrutture web attuali. La partecipazione a queste giornate è gratuita ma i posti sono limitati per cui Vi invitiamo a registrarVi al più presto alla pagina: http://egeena4.ct.infn.it/industry_day/registration.ph. Per maggiori informazioni sull'Industry Day di Catania potete contattare il Prof. Roberto Barbera (roberto.barbera@ct.infn.it) oppure visitare il sito EGEE: http://www.eu-egee.org/cataniaday Il programma dettagliato della giornata, attualmente in corso di definizione, sarà visionabile alla pagina: http://agenda.cern.ch/fullAgenda.php?ida=a062785.
Date: From 2006-10-24 16:00:00 to 2006-10-24 19:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Christian Lavigne
Sculpture numérique: histoire et actualité

Date: From 2006-10-23 15:00:00 to 2006-10-24 13:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
La figura di Marcello Rodonò nella ricerca Astrofisica
Abstract/Calendar
Nella ricorrenza del primo anniversario dalla scomparsa del Prof. Marcello Rodonò, l'Osservatorio Astrofisico di Catania e la Sezione Astrofisica del Dipartimento di Fisica e Astronomia dell'Università di Catania organizzano un workshop inteso a ricordare il Suo contributo all'astrofisica. Il programma dell'evento è riportato alla pagina http://www.oact.inaf.it/MRodono/programma.html. La partecipazione della S.V. sarà particolarmente gradita.
Date: From 2006-10-20 15:00:00 to 2006-10-20 16:00:00
Location: Dipartimento di Matematica e Informatica, Viale A. Doria, 6, Aula 36
Dr. Wolfgang Wagner
Weierstrass Institute for Applied Analysis and Stochastics, Berlin Germany
Direct Simulation Monte Carlo for rarefied gas flows

Date: From 2006-10-19 16:00:00 to 2006-10-19 17:00:00
Location: Dipartimento di Matematica e Informatica, Viale A. Doria, 6, Aula 41
Dr. Wolfgang Wagner
Weierstrass Institute for Applied Analysis and Stochastics, Berlin Germany
Explosion phenomena in stochastic coagulation-fragmentation models

Date: 2006-10-18 16:00:00
Location: DMFCI, Via A. Doria, 6, Aula V8
Prof. Luigi Amico
DMFCI, Università di Catania Italy
Sistemi esattamente risolubili per la fisica dello stato condensato
Abstract/Calendar
Introduzione alla teoria dei sistemi integrabili classici.
Elementi basilari del metodo dello scattering quantistico inverso.
Soluzione esatta dei modelli di Heisenberg.
Soluzione esatta del modello BCS (oltre la soluzione di campo medio).
Soluzione esatta del modello di Hubbard.
Si prevedono 8 lezioni da 2 ore con inizio mercoledì 18 alle ore 16 in Aula V8, Dip. metodologie fisiche e chimiche Ingegneria. In linea di massima gli incontri saranno ogni mercoledì e venerdì alle 16.
Date: From 2006-10-18 15:00:00 to 2006-10-18 16:00:00
Location: Dipartimento di Matematica e Informatica, Viale A. Doria, 6, Aula 41
Dr. Wolfgang Wagner
Weierstrass Institute for Applied Analysis and Stochastics, Berlin Germany
Basics of the Monte Carlo method

Date: From 2006-10-12 17:00:00 to 2006-10-12 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula L
Prof. N. H. March
Oxford University, Oxford UK
The single-particle kinetic energy in density functional theory: transcending Thomas-Fermi plus von Weizsacker method
Abstract/Calendar
In 1959, with a former student W. H. Young, a short paper was published in Nuclear Physics vol. 12, p. 237. In particular, a differential form of the virial theorem (DVT) was reported but the considerations were one-dimensional. The basic tool used was the equation of motion of the Dirac density matric for an arbitrary number of (spin-1/2) Fermions moving in what was termed in 1959 a 'local average field'. After relating the exact DVT of March and Young to the Thomas-Fermi method, an exact density functional theory in D dimensions will be constructed for harmonic confinement. For a general local potential V(r), an exact perturbation theory for the kinetic energy density t(r) will be reported, based on plane waves, to infinite order in V. For sufficiently slowly varying V(r), the result for t(r) sums to the Thomas-Fermi value. Some attention will be paid to relating t(r) to Thomas-Fermi and von Weizsäcker kinetic energies as building blocks, reference being also made to surface energy. Finally, non-local potentials plus inter-Fermion interactions will be embraced in a brief discussion.
Date: From 2006-10-11 15:30:00 to 2006-10-11 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr.ssa Beata Kozlowska
Univerisity of Silesia, Katowice Polonia
Research at the Laboratory of Low Activities, University of Silesia, Katowice, Poland

Date: From 2006-10-11 15:30:00 to 2006-10-11 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr.ssa Beata Kozlowska
Univerisity of Silesia, Katowice Poland
Research at the Laboratory of Low Activities, University of Silesia, Katowice, Poland

Date: From 2006-10-06 11:00:00 to 2006-10-06 12:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Pierre Vernazza
Paris Observatory France
The connection between asteroids and meteorites: what do we learn?

Date: From 2006-10-05 09:00:00 to 2006-10-06 19:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
International conference on "Ettore Majorana's legacy and the Physics of the XXI century" in commemoration of the centennial of Majorana's birth
Abstract/Calendar
The aim of this conference to celebrate the centennial of the birth of one of the most important physicists of the XX century.
Starting from the original papers, the main focus of the conference will be on Majorana's legacy and  contemporary Physics.

Topics
   1. Neutrino Physics 
   2. Field Theory
   3. Exchange forces in nuclei and molecules
   4. Statistical Physics 
   5. Physics and Society 

Date: From 2006-10-03 16:30:00 to 2006-10-03 18:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Tomasello Pasquale
Dipartimento di Fisica e Astronomia, Università di Catania Italy
E. Schrödinger tra Meccanica Ondulatoria e Meccanica Quantica (o sul dissidio tra psi e h)
Abstract/Calendar
Verrà presentato e commentato il lavoro (Ann. der Physik vol. 79, pp. 361, 489, 1926) di Erwin Schroedinger nel contesto storico della fisica quantica degli anni '20, e i tratti salienti del personaggio . La chiacchierata è principalmente intesa per e diretta a gli studenti di Fisica del I e II livello, pur dottori e dottorandi, scienziati e dilettanti, teorici e praticanti saranno cordialmente benvenuti e potranno forse trovare qualche spunto d'interesse. P.S. Agli intervenuti, su loro richiesta, verrà fatto omaggio, um ersatzlichen Dankeschoen, d'una softcopia della traduzione in lingua nostrale dei due famosi articoli schroedingeriani.
Date: From 2006-09-27 09:00:00 to 2006-09-30 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
First International Workshop on Soft Physics in Ultrarelativistic Heavy Ion Collisions
Abstract/Calendar
About one year before LHC starts data taking, at the beginning of studies which characterize this new collision energy regime, this workshop aims to encourage discussion among physicists involved in soft physics topics at ultrarelativistic heavy ion collisions, coming from SPS, RHIC and LHC. Discussion will touch all interesting topics of soft physics study, both from the experimental and theoretical point of view: it will allow to present last results obtained at the RHIC energy and to make the point on the development of new analysis tools and on theoretical predictions for the LHC regime. All sessions will be plenary and considering the "informal" style of this workshop, a large part of it will be devoted to discussion. The sessions will cover the following subjects:
  • Event characterization
  • Particle production (strangeness, resonances, exotica, ...)
  • Collective effects (flow, ...)
  • Momentum correlations (HBT, ...)
  • Event-by-event physics: (fluctuations, correlations, ...)

Date: From 2006-09-25 16:00:00 to 2006-09-25 17:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Sala riunioni
Prof. G. Lalazissis
University of Thessaloniki Greece
Isospin properties of covariant density functional theory in nuclear physics

Date: From 2006-09-21 16:00:00 to 2006-09-21 17:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Sala riunioni
Prof. H. Toki
Osaka University Japan
Relativistic chiral mean field model for finite nuclei

Date: From 2006-09-21 11:00:00 to 2006-09-21 12:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Prof. John Murray
Department of Earth Sciences, The Open University, Milton Keynes MK7 UK
Water Ice on Mars: results from Mars Express
Abstract/Calendar
Recent images of the surface of Mars from the European Mars Express space probe have shown that past surface water and present surface water ice is far more widespread than previously thought. There are thousands of examples of recent water gullies, and many cases of catastrophic flooding events throughout Mars' history. There are also cases of large water eruptions on volcanoes, and at least one large rifting and water eruption event from about 5 million years ago.
Date: From 2006-09-19 15:30:00 to 2006-09-19 16:30:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Sala riunioni
Dr. Paolo Desiati
University of Wisconsin, Madison USA
Status of ICECUBE project

Date: From 2006-09-06 11:00:00 to 2006-09-06 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Constantino Tsallis
CPBF, Rio de Janeiro, Brazil and Santa Fe Institute, Santa Fe, NM, USA Brasil
Entropy and central limit theorems
Abstract/Calendar
The standard central limit theorem mathematically grounds Boltzmann-Gibbs statistical mechanics. Recently proved central limit theorems constitute the corresponding mathematical grounding of nonextensive statistical mechanics. These theorems will be presented. In addition to this, recent experimental confirmations of this theory will be presented as well. Bibliography: (i) J.P. Boon and C. Tsallis, eds., Europhysics News 36 (6) (European Physical Society, Nov/Dec 2005); (ii) L.G. Moyano, C. Tsallis and M. Gell-Mann, Europhys. Lett. 73, 813 (2006); S. Umarov, C. Tsallis and S. Steinberg, cond-mat/0603593; (iii) S. Umarov, C. Tsallis, M. Gell-Mann and S. Steinberg, cond-mat/0606038 and cond-mat/0606040; (iv) P. Douglas, S. Bergamini and F. Renzoni, Phys. Rev. Lett. 96, 110601 (2006).
Date: From 2006-07-27 09:00:00 to 2006-07-28 18:30:00
Location: Dipartimento di Matematica e Informatica, Viale A. Doria, 6, Aula Informatica
Prof. Roberto Barbera
Dipartimento di Fisica e Astronomia, Università di Catania, e INFN, Sez. Catania Italy
Tutorial teorico-pratico sull'utilizzo di Grid
Abstract/Calendar
Il Progetto TriGrid Virtual Laboratory organizza nei giorni 27 e 28 luglio prossimi, presso l'Aula Informatica del Dipartimento di Matematica e Informatica, un tutorial teorico-pratico sull'utilizzo di Grid. Si tratta di una ghiotta occasione per imparare cos'e' un grid middleware e come usarlo per far girare su grid le proprie applicazioni, i propri programmi. Il tutorial e' aperto a CHIUNQUE e non richiede alcuna conoscenza di base di grid e solo una conoscenza basilare della command-line-interface di Linux. La home page del tutorial (incluso il form di registrazione, gia' attivo) e' accessibile all'URL http://www.trigrid.it/eventi/tutorial-ct-0706/index.php mentre il programma (che verra' completo entro la prossima settimana) e' accessibile alla pagina http://agenda.trigrid.it//fullAgenda.php?ida=a069. Nell'ottica delle attivita' future che vedranno molte persone del Dipartimento e della Sezione impegnate nel Progetto PI2S2 del Consorzio COMETA, il tutorial di fine mese rappresenta un utilissimo punto di partenza.
Date: From 2006-07-25 16:30:00 to 2006-07-25 17:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Sumiyoshi Abe
University of Tsukuba Japan
q-Expectation values in nonextensive statistical mechanics
Abstract/Calendar
In nonextensive statistical mechanics, two kinds of definitions have been considered for expectation value of a physical quantity: one is the ordinary definition and the other is the so-called qexpectation value employing the escort distribution. In this lecture, it is shown that the correct one is the use of the q-expectation value. The proof is based on the Shore-Johnson theorem for consistency between the maximum entropy principle and the minimum cross-entropy (i.e., relative-entropy) principle.
Date: From 2006-07-24 16:30:00 to 2006-07-24 17:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Sumiyoshi Abe
University of Tsukuba Japan
Thermodynamics based on time average and temporal extensivity of entropy
Abstract/Calendar
The recently proposed time-average approach to thermodynamics is reexamined and generalized to nonextensive thermostatistics. It is shown that the Tsallis entropy, S_q, is always temporally extensive, that is, the production rate of S_q is constant, whenever physically relevant. The universal upper bound is also derived for such production rate.
Date: From 2006-07-14 12:00:00 to 2006-07-14 13:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Andrea Canino
Dipartimento di Fisica e Astronomia, Università di Catania Italy
SOI waveguides optical characterization

Date: From 2006-07-10 11:00:00 to 2006-07-10 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Richard Palmer
School of Physics and Astronomy, University of Birmingham UK
A Journey in Nanoscience: from Atoms via Clusters to Proteins

Date: From 2006-07-05 11:00:00 to 2006-07-05 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Fernando Ferroni
Università di Roma La Sapienza Italy
Studio della natura del neutrino con l'esperimento CUORE

Date: From 2006-07-03 17:00:00 to 2006-07-03 18:15:00
Location: Dipartimento di Matematica e Informatica, Viale A. Doria, 6, Aula 2
Prof. Giuseppe Scollo
Dipartimento di Matematica e Informatica, Università di Catania Italy
Ricorrenza e attrattori in sistemi dinamici di transizioni di stato: una formulazione relazionale.
Abstract/Calendar
I concetti di ricorrenza e attrattore, che giuocano ruoli importanti nei sistemi dinamici classici, vengono formulati nell'ambiente piu` primitivo dei sistemi dinamici di transizioni di stato, dove non si assume alcuna struttura sullo spazio degli stati oltre a quella di una relazione binaria di transizione. La formulazione si basa sull'algebra relazionale di Tarski, estesa con operatori utili allo scopo, quali la chiusura di Kleene. Un teorema di caratterizzazione stabilisce una forte connessione fra ricorrenza e sia esistenza che estensione dell'attrattore, in ciascuna delle due varianti. La presentazione ha un taglio introduttivo, non assume prerequisiti e si conclude con indicazioni di temi di ulteriore ricerca.
Date: From 2006-07-03 09:00:00 to 2006-07-07 19:00:00
Location: Hotel Nettuno, Catania,
International Workshop on Trans Neptunian Objects. Dynamical and Physical properties

Date: From 2006-06-30 10:00:00 to 2006-06-30 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula E
Prof. Roberto Barbera
Dipartimento di Fisica e Astronomia, Università di Catania, e INFN, Sez. Catania Italy
Checkpoint Meeting
Abstract/Calendar
Il 30 Giugno 2006, con inizio alle ore 10.00, nell'Aula E del Dipartimento di Fisica e Astronomia avra' luogo un meeting informale nel quale si fara' il punto sullo stato delle applicazioni scientifiche ed industriali che si stanno realizzando sull'infrastruttura del Progetto TriGrid VL. Il meeting e' aperto a tutti e costituisce una buona occasione per coloro i quali volessero "avvicinarsi" al "mondo grid" e volessero sapere che tipo di applicazioni possono essere eseguite su una infrastruttura di calcolo distribuito e come. Il programma del meeting verra' pubblicato a giorni alla pagina http://agenda.trigrid.it/fullAgenda.php?ida=a067. E' gradito un email all'indirizzo grid-prod@ct.infn.it da parte di coloro i quali pensano di partecipare.
Date: From 2006-06-27 16:00:00 to 2006-06-27 17:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Sala riunioni
Ing. Angelo Campisi
INFN-LNS, Catania Italy
Nuovi sensori a stato solido per la rivelazione di singoli fotoni e loro possibili applicazioni
Abstract/Calendar
Array di fotosensori SPAD (Single Photon Avalanche Diode) sono considerati oggi come una possibile alternativa ai PMT ed altri dispositivi a stato solido in diverse applicazioni, ad esempio fisica nucleare, bioluminescenza, diagnostica medica, il settore della difesa, processi industriali, etc. Presso i Laboratori Nazionali del Sud abbiamo sviluppato e caratterizzato i primi prototipi di array di SPAD prodotti dalla STMicroelectronics, realizzati in tecnologia planare e operanti con basse alimentazioni (30-40 Volt) in Geiger mode. La struttura circolare delle singole celle o pixel (diametri da 20 a 100 mm) e la loro disposizione geometrica ci hanno permesso di studiare le caratteristiche intrinseche di questi dispositivi, quali efficienza di rivelazione, mappe di dark count, effetti di cross talk, afterpulsing, risposta temporale e risoluzione energetica. Due nuovi prototipi con un elevato numero di pixel sono ad oggi in fase di sviluppo e realizzazione, operanti con un'unica uscita comune così da ottenere un cosiddetto Silicon Photomultiplier (SiPM) mirato per applicazioni PET (Positron Emission Tomography), e con pixel completamente indipendenti così da avere un sensore di posizione con elevate prestazioni temporali per applicazioni di astrofisica e molecular imaging.
Date: From 2006-06-25 09:00:00 to 2006-06-30 19:00:00
Location: CERN, Geneva, Switzerland,
NIC IX - International Symposium on Nuclear Astrophysics: Nuclei in the Cosmos

Date: From 2006-06-23 12:00:00 to 2006-06-23 13:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Mario Gai
Interferometria astronomica: motivazioni e implementazione
Abstract/Calendar
Le tecniche interferometriche sono state storicamente applicate a misure ottiche di precisione ed applicate all'astronomia osservativa nel regime radio negli scorsi decenni. Lo sviluppo delle tecniche sta rendendo utilizzabile il metodo a lunghezze d'onda sempre piu' corte, tra il visibile ed il vicino infrarosso, in grandi infrastrutture che comprendono un significativo contributo italiano, quali LBT ed il Very Large Telescope Interferometer ESO. Si presenta una panoramica degli aspetti fondamentali dell'interferometria, alcuni esempi dei risultati recentemente ottenuti su vari soggetti astrofisici, e il possibile coinvolgimento della comunita' italiana nei futuri sviluppi sia astrofisici che tecnologici.
Date: From 2006-06-15 11:30:00 to 2006-06-15 12:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Tomasello Pasquale
Dipartimento di Fisica e Astronomia, Università di Catania Italy
W.K. Heisenberg e la creazione della Meccanica Quantica
Abstract/Calendar
Verra' presentato e commentato il lavoro (Zeits. f. Physik 33, 879, 1925) del giovane Heisenberg che segno', assieme ai due successivi lavori di Born e Jordan, e Born Heisenberg e Jordan la nascita della Meccanica dei Quanti per trasformazione della precedente teoria di Bohr-Sommerfeld.
Date: From 2006-06-14 16:00:00 to 2006-06-14 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Guenther Dissertori
ETH Zurich Switzerland
LHC: status quo e prospettive
Abstract/Calendar
Starting in two years from now, particle physics will enter a new regime in terms of energies and luminosities, thanks to the Large Hadron Collider (LHC) at CERN and its experiments. In this talk I will first report on the status of the preparations, both for the machine and the detectors. Then I will give some selected highlights from the very rich physics programme. In particular, I will concentrate on the relevance of measurements of Standard Model processes, on the search for the Higgs boson(s), as well as on other searches for new physics, such as Supersymmetry.
Date: From 2006-06-14 09:00:00 to 2006-06-14 14:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula I
Claudio Bellotti
Newport Micro-controle Italy
Esposizione di prodotti Newport/Micro-Controle
Abstract/Calendar
Durante quest'incontro si potranno vedere e provare sistemi di traslazione e rotazione ad alta precisione, con controllori XPS ed SMC100CC . Ci sarà inoltre una selezione dal catalogo di montaggi ottici e sistemi di movimentazione manuale, di power meter e relativi detectors, ed un Laser Beam Profiler. Infine si potrà prendere o richiedere il nuovo Catalogo 2006/2007 ed il relativo listino prezzi.
Date: From 2006-06-13 16:30:00 to 2006-06-13 17:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Giulio Casati
Center for nonlinear and complex systems, University of Insubria, Como Italy
Caos classico e decoerenza quantistica
Abstract/Calendar
Si discute la stabilita' del moto quantistico (fidelity) in relazione alle proprieta' dinamiche del sistema. Verra' poi esaminato il ruolo giocato dal caos dinamico nel processo di decoerenza quantistica in assenza di interazione con l'ambiente esterno. Attraverso un semplice modello si mostra che il decadimento dell'eco di Loschmidt quantistico (fidelity) e' determinato dal decadimento di una funzione di correlazione classica. Infine si presentano i risultati di una simulazione numerica dell'esperimento delle due fenditure che mostrano come il caos interno distrugga le frange di interferenza.
Date: From 2006-06-08 15:00:00 to 2006-06-08 16:00:00
Location: Dipartimento di Matematica e Informatica, Viale A. Doria, 6, Aula Seminari
Prof. Luciano Colombo
Dipartimento di Fisica, Università di Cagliari Italy
Fisica della interfaccia solido-amorfo in silicio: uno studio basato su simulazioni atomistiche

Date: From 2006-06-08 12:00:00 to 2006-06-08 13:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Sala riunioni
Prof. De Jadu
Saha Institute, Calcutta India
Specific heat in finite nuclei
Abstract/Calendar
The liquid-gas phase transition in finite nuclei is studied in a heated-liquid drop model where the nuclear drop is assumed to be in thermodynamic equilibrium with its own evaporated nucleonic vapor, conserving the total baryon number and isospin of the system. It is found that in the liquid-vapor coexistence region the pressure is not a constant on an isotherm, indicating the transition is continuous. At constant pressure, the caloric curve shows some anomalies; namely, the systems studied exhibit negative heat capacity in a small temperature domain. The dependance of this specific feature on the mass and isospin of the nucleus, the Coulomb interaction and the chosen pressure is studied. The effects of the presence of clusters in the vapor phase on specific heat have also been explored.
Date: From 2006-06-08 12:00:00 to 2006-06-08 13:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Sala riunioni
Prof. De Jadu
Saha Institute, Calcutta India
Specific heat in finite nuclei
Abstract/Calendar
The liquid-gas phase transition in finite nuclei is studied in a heated-liquid drop model where the nuclear drop is assumed to be in thermodynamic equilibrium with its own evaporated nucleonic vapor, conserving the total baryon number and isospin of the system. It is found that in the liquid-vapor coexistence region the pressure is not a constant on an isotherm, indicating the transition is continuous. At constant pressure, the caloric curve shows some anomalies; namely, the systems studied exhibit negative heat capacity in a small temperature domain. The dependance of this specific feature on the mass and isospin of the nucleus, the Coulomb interaction and the chosen pressure is studied. The effects of the presence of clusters in the vapor phase on specific heat have also been explored.
Date: From 2006-06-07 15:30:00 to 2006-06-07 16:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula M
Prof. L. J. Chen
National Tsing Hua University, Hsinchu Taiwan
Metal Silicide Nanowires and In situ Ultrahigh Vacuum Transmission Electron Microscope Investigation of Nanostructures on Silicon

Date: From 2006-06-07 12:00:00 to 2006-06-07 13:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Sala riunioni
Prof. Sammadar Santosh
Saha Institute, Calcutta India
Statistical multifragmentation model: a critical assessment
Abstract/Calendar
Statistical multifragmentation model is found to be very successful in explaining the various characteristics of nuclear disassembly observed in intermediate energy heavy ion collision experiments. The 'freeze-out' volume is a key parameter in the model. It is assumed that the fragmentation pattern is fully decided (frozen-out) in this volume. However, during the time evolution of the generated fragments in the exit channel, a pair of fragments may come in close contact and recombine altering the fragmentation pattern. This raises doubts about the efficacy of the freeze-out concept.
Date: From 2006-06-07 11:00:00 to 2006-06-07 12:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Padmakar Singh Parihar
Indian Institute of Astrophysics, Bangalore India
Indian Astronomical Observatory: Present and Future
Abstract/Calendar
The Indian Astronomical Observatory, situated at world highest point in Himalay (India) operates the Himalayn Chandra Telescope (HCT), a fully remote control telescope. HCT saw first light on September 2000 and it has successfully completed 3 years of science observing runs with its first generation instruments. Other than optical astronomy, a considerable interest is being shown by Indian astronomers and scientists also to establish their own instrumental setup at the site. The facilities available at IAO and the project to put-up second generation instruments on the HCT as well to get a larger optical telescope will be briefly described.
Date: From 2006-06-05 17:15:00 to 2006-06-05 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula A
Prof. Frank Goehmann
University of Wuppertal Germany
Density matrix and correlation functions of the Heisenberg spin chain
Abstract/Calendar
This talk presents a review of novel exact and partially explicit results on the density matrix of a finite sub-chain of the infinitely long Heisenberg spin chain. The results were obtained over the last decade first for the ground state and most recently also for finite temperature and external magnetic field. They seem to be the first example ever that such type of quantity could be exactly calculated for an interacting quantum system. As a physical application exact formulae for short-range correlation functions of the Heisenberg chain in the thermodynamic limit were obtained. In the groundstate they complement the large-distance asymptotic formulae from the field-theoretical analysis.
Date: From 2006-06-01 17:15:00 to 2006-06-01 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula A
Prof. John Clarke
Physics Department, University of California, Berkeley USA
Two Coupled Flux Qubits with Controllable Interaction

Date: From 2006-05-26 16:30:00 to 2006-05-26 17:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Filippo Caruso
NEST CNR-INFM & Scuola Normale Superiore, Pisa Italy
Degradability of Bosonic Gaussian Channels
Abstract/Calendar
The degradability properties of one-mode Bosonic Gaussian channels are studied. Exploiting the fact that these maps are unitarily equivalent to Beam-Splitter/Amplifier channel we prove that they are either degradable or anti-degradable. In the former case this implies the additivity of the output coherent information which allows one to compute their quantum capacity Q in terms of a single-letter formula. In the latter case instead one has that Q=0.
Date: From 2006-05-24 16:00:00 to 2006-05-24 17:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Sala riunioni
Dr. A. Mangione - A. Picciotto
Università Messina - Sez. INFN Me
- Carbon nanostructures produced by pulsed laser ablation - Temperatures characterization of plasmas generated by high power pulsed lasers

Date: From 2006-05-22 17:15:00 to 2006-05-22 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula A
Dr. Jens Siewert
CNR-INFM-Matis, Catania Italy
Lava channel formation during the 2001 eruption on Mount Etna: Evidence for mechanical erosion
Abstract/Calendar
We report the direct observation of a peculiar lava channel that was formed near the base of a parasitic cone during the 2001 eruption on Mount Etna. Erosive processes by flowing lava are commonly attributed to thermal erosion. However, field evidence strongly suggests that models of thermal erosion cannot explain the formation of this channel. Here, we put forward the idea that the essential erosion mechanism was abrasive wear. By applying a simple model from tribology we demonstrate that the available data agree favorably with our hypothesis. Consequently, we propose that erosional processes resembling the wear phenomena in glacial erosion are possible in a volcanic environment.
Date: From 2006-05-19 11:30:00 to 2006-05-19 12:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Carlo Burigana
IASF, Bologna Italy
Microwave sky anisotropies in the light of recent all sky surveys: CMB versus Galactic synchrotron foreground

Date: From 2006-05-19 09:00:00 to 2006-05-19 10:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Eloisa Bentivegna
Simulating black hole spacetimes: the new singularity avoidance paradigm

Date: From 2006-05-18 17:00:00 to 2006-05-18 18:00:00
Location: Dipartimento di Matematica e Informatica, Viale A. Doria, 6, Aula Seminari
Dr. Luis L. Bonilla
Universidad Carlos III, Madrid Spain
Dislocations in cubic crystals described by discrete models

Date: From 2006-05-18 12:00:00 to 2006-05-18 13:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Vincenzo Antonuccio-Delogu
INAF-OACT, Catania Italy
A Weak Lensing analysis of Abell 209
Abstract/Calendar
The cluster Abell 209 has been extensively studied in the recent past. It appears to have a single peak in redshift distribution, and also the optical galaxy distribution does not show any strong sign of substructure (Mercurio, Girardi et al., 1997, 2001). We have applied a Kaiser-Squires-Broadhurst Weak Lensing pipeline recently developed by one of us (S. P.-H.) to extract the shear signal out of a deep stacked R-band archival image of this cluster. More than 14,000 background galaxies have been used to measure the WL signal, using both Mass Aperture (Schneider, 1996) and Mass Reconstruction (Seitz and Schneider, 2001) methods. The WL reconstructions show also a single peak, almost coincident in distribution with the galaxy and X-ray maps. Form a NFW fit we estimate a mass 9.26*1014 M_sol within 500 Kpc, larger than the one found in previous work (Smith et al., 2005), but consistent with X-ray estimates.
Date: From 2006-05-17 15:00:00 to 2006-05-17 17:00:00
Location: Dipartimento di Matematica e Informatica, Viale A. Doria, 6, Aula Seminari
Seminari nell'ambito del progetto europeo COMSON
Abstract/Calendar
15:00 Carlo de Falco, INFINEON, Monaco, Germany
      "Quantum corrected drift-diffusion models 
       and simulation of nanoscale semiconductor devices"
15:50 Tamara Bechtold, PHILIPS, Eindhoven, The Netherlands
      "Model order reduction for electro-thermal MEMS"

Date: From 2006-05-15 17:00:00 to 2006-05-15 18:00:00
Location: Dipartimento di Matematica e Informatica, Viale A. Doria, 6, Aula 4
Prof. Giuseppe Mulone
Dipartimento di Matematica e Informatica, Università di Catania Italy
Funzioni di Lyapunov ottimali, per sistemi dinamici descritti da equazioni differenziali ordinarie e a derivate parziali, mediante il "metodo canonico di riduzione"
Abstract/Calendar
Con questo seminario si intende inaugurare il ciclo dei "Seminari del Dipartimento di Matematica e Informatica", su argomenti di ricerca, ma rivolti a non specialisti.
In molti problemi applicativi retti da sistemi di equazioni differenzialidordinari o a derivate parziali, lo studio della stabilità e dell'instabilità di una particolare soluzione è affrontato con i metodi classici di linearizzazione (studio del segno della parte reale degli autovalori associati) e di Lyapunov (energia nello spazio di Hilbert). Tali metodi danno origine a parametri critici lineare, R_L, e non lineare, R_E (rispetto ad una funzione di Lyapunov E). Generalmente R_E è minore o uguale a R_L. Se R_E coincide con R_L si ottengono condizioni necessarie e sufficienti di stabilità e la funzione di Lyapunov E è detta ottimale.
La costruzione di "buone" funzioni di Lyapunov (specie nel caso di equazioni a derivate parziali) non è un problema facile perché non esistono metodi generali per la loro definizione.
In molti casi, specie in presenza di effetti stabilizzanti, l'energia classica E_0 (norma dello spazio di Hilbert) non è ottimale.
In questo seminario, dopo un breve richiamo di questioni di stabilità, viene presentato un nuovo metodo operativo, basato sul classico metodo di riduzione di sistemi di equazioni differenziali ordinarie lineari in forma canonica, per ottenere funzioni di Lyapunov ottimali in sistemi differenziali ordinari, in problemi di reazione diffusione e in fluidodinamica.
Date: From 2006-05-15 09:00:00 to 2006-05-18 19:00:00
Location: Le Ciminiere Congress Centre, Catania,
TERENA Networking Conference 2006

Date: From 2006-05-11 11:00:00 to 2006-05-11 12:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Sala riunioni
Prof. J. Toke
University of Rochester USA
Surface Entropy and first order phase transitions in finite nuclei - a new beginning for studies of nuclear multifragmentation?

Date: From 2006-05-10 15:30:00 to 2006-05-10 16:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Progetto Lauree Scientifiche (Fisica): 1. Meeting

Date: From 2006-05-09 16:00:00 to 2006-05-09 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Erasmo Recami
Università di Bergamo, Dalmine Italy
Ettore Majorana: L’uomo e lo scienziato

Date: 2006-05-09 16:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Erasmo Recami
Ettore Majorana: L'Uomo e lo scienziato

Date: From 2006-05-08 17:15:00 to 2006-05-08 18:15:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula I
Dr. Alberto Piro
Dipartimento di Fisica e Astronomia, Università di Catania Italy
Chalcogenides: phase-change materials for data storage devices

Date: From 2006-05-05 16:00:00 to 2006-05-05 19:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Laborad Day: Misure di radon nelle scuole

Date: From 2006-05-05 10:00:00 to 2006-05-05 11:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Sala riunioni
Prof. Giuseppe Pappalardo
INFN-LNS, Dipartimento di Fisica e Astronomia Univ. Catania
Recenti attività del laboratorio LANDIS

Date: From 2006-05-04 12:00:00 to 2006-05-04 13:00:00
Location: Osservatorio Astrofisico, Via. A. Doria, 6, Aula Ovest
Prof. Valerio Pirronello
Formazione di molecole sulla superficie dei grani interstellari

Date: From 2006-05-03 16:00:00 to 2006-05-03 17:30:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Sala riunioni
Dr. Santo Gammino
INFN - LNS, Catania Italy
Sorgenti di plasma e sorgenti di ioni ai LNS
Abstract/Calendar
Overview delle attività relative a sorgenti di ioni e studio di plasma in equilibrio e  in non-equilibrio (S. Gammino 15') 
    
Ai confini dell'invariante adiabatico: tentativi per ottimizzare l'interazione microonde-plasma (D. Mascali 20')

Studio di plasma in non equilibrio prodotto da laser (F. Caridi 20')

Studio per la determinazione del campo elettrico in un plasma in non-equilibrio (esperimento PLATONE) (L. Torrisi 15')

Date: From 2006-04-28 17:00:00 to 2006-04-28 18:00:00
Location: Liceo Scientifico Majorana Scordia,
Dr. Angelo Pagano
Nascita del moderno modello atomico ed il contributo di Ettore Majorana

Date: 2006-04-28 10:30:00
Location: I.P.S.I.A. Majorana Giarre,
Dr. Angelo Pagano
Nascita del moderno modello atomico ed il contributo di Ettore Majorana

Date: From 2006-04-28 09:00:00 to 2006-04-28 10:00:00
Location: Osservatorio Astrofisico, Via. A. Doria, 6, Aula Ovest
Prof. Antonio Insolia
Il telescopio Auger

Date: From 2006-04-27 10:30:00 to 2006-04-27 11:30:00
Location: I.P.S.I.A. Majorana Giarre,
Dr. Angelo Pagano
Nascita del moderno modello atomico ed il contributo di Ettore Majorana

Date: 2006-04-27 10:30:00
Location: I.P.S.I.A. Majorana Giarre,
Dr. Angelo Pagano
Nascita del moderno modello atomico ed il contributo di Ettore Majorana

Date: From 2006-04-19 15:00:00 to 2006-04-19 16:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Dr. Graham Wilkie
Project Officer, Human Resources and Mobility Actions, European Commission, Bruxelles Belgium
The VII EC Framework Programme on Research and Development
Abstract/Calendar
A margine della visita al gruppo COSMOCT dell'INAF-Osservatorio Astrofisico di Catania, il Dr. Wilkie ha accettato di offrire una conferenza-dibattito sul VII Programma Quadro della CE, rivolta ai docenti, ricercatori, dottorandi e studenti. Si tratta di un'occasione utile per tutti coloro gia' coinvolti o interessati a partecipare attivamente ai progetti comunitari per conoscere lo stato del VII PQ e porre domande.
Date: From 2006-04-13 09:00:00 to 2006-04-13 10:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Prof. Yaroslav D. Sergeyev
University of Calabria, Rende, Italy, and N.I. Lobachevski University, Nizhni Novgorod, Russia Russia
Infinity computer and calculus
Abstract/Calendar
Traditional computers execute arithmetical operations with finite numbers. The talk introduces a new positional system with infinite radix allowing one to write down finite, infinite, and infinitesimal numbers as particular cases of a unique framework (see [1,2]). The new numeral system gives possibility to introduce a new type of computer ¨C Infinity Computer ¨C able to operate not only with finite numbers but also with infinite and infinitesimal ones. The new approach both gives possibilities to execute calculations of a new type and simplifies fields of mathematics where usage of infinity and/or infinitesimals is necessary (e.g., divergent series, limits, derivatives, integrals, measure theory, probability theory, etc.). Computational abilities of computers determine classes of applications that can be treated by the computers. In the following there are listed both operations that traditional computers are not able to perform and some of new areas of applications. It will become possible: i¤ to substitute symbols +iÞ and -iÞ by spaces of positive and negative infinite numbers, to represent them in the memory of Infinity Computer and to execute arithmetical operations with all of them using this new type of computer, as we are used to do with usual finite numbers on traditional computers; i¤ to substitute qualitative descriptions of the type i®a number tends to zeroi- by precise infinitesimal numbers, to represent them in the memory of Infinity Computer, and to execute arithmetical operations with them using Infinity Computer as we are used to do with usual finite numbers using traditional computers; i¤ to calculate divergent limits and series, providing as results explicitly written different infinite numbers, to be possibly used in further calculations on Infinity Computer; i¤ to calculate indeterminate forms (e.g., difference and division of divergent series) that can give as results different infinitesimal, finite or infinite numbers; i¤ to calculate on Infinity Computer sums of divergent series and improper integrals of various types that can give as results different explicitly written infinite numbers; i¤ to evaluate functions and their derivatives at infinitesimal, finite, and infinite points (infinite and infinitesimal values of functions and their derivatives can be also explicitly calculated); i¤ to study divergent processes at different infinite points; i¤ to extend definition of volume to objects having parts of different dimensions and to calculate these volumes in a unique framework using infinite and infinitesimal numbers; i¤ to introduce notions of lengths, areas, and volumes of fractal objects obtained after infinite numbers of steps and compatible with traditional lengths, areas, and volumes of non-fractal objects and to calculate them in a unique framework; i¤ to introduce notions of numbers of elements in infinite sets compatible with the notion used traditionally for finite sets and to calculate them in a unique framework (significantly evolving traditional approaches able to distinguish numerable sets from continuum only). A demonstration of the Infinity Calculator using the Infinity Computer technology is given during the presentation. Presentations Results described in the book and in the patent have been presented at the following congresses: i¤ invited plenary lecture at the XXI Autumn Meeting of the Polish Information Processing Society, Katowice, Poland, December 5-9, 2005; i¤ invited plenary lecture at the International Workshop on Global Optimization, Almeria, Spain, September 18-22, 2005; i¤ tutorial at the International Conference on Complementarity, Duality, and Global Optimization in Science and Engineering, Blacksburg, Virginia, USA, August 15-17, 2005; i¤ invited plenary lecture, International Conference on Difference Equations, Special Functions and Applications, Munich, July 25-30, 2005; i¤ invited plenary lecture, International Conference i°Numerical Analysis: the State of the Arti±, Rende (CS), May, 19-21, 2005; i¤ invited semi-plenary lecture at the International conference on Selected Problems of Modern Mathematics, dedicated to the 200th anniversary of K.G. Jacobi and the 750th anniversary of the Koenigsberg foundation, Kaliningrad, April, 4-8, 2005; i¤ tutorial at the Workshop "Numerical Methods and Mathematical Software", Montecatini Terme (PT), January 31 - February 1, 2005; i¤ invited plenary lecture at the VI-th International Congress on Mathematical Modelling, Nizhni Novgorod, Russia, September, 21-26, 2004; i¤ opening invited lecture at the congress i°Infinity in Mathematics, Physics, and Philosophyi±, Pisa, Italy, 26.03.2004; and at the universities of: Aberdeen, Bari, Bologna, Cagliari, Calabria, Cardiff, Florence, Kaliningrad, Nizhni Novgorod, Pisa, Rome i°La Sapienzai±, Salerno, St. Petersburg, Trieste, and also at the Italian Institute of Philosophical Studies, Naples, Computing Centre of the Russian Academy of Sciences, Bologna Academy of Sciences, Institute of Computer Science of the Academy of Sciences of the Czech Republic, Nizhni Novgorod Mathematical Society, Institute for Mathematical Modelling of the Russian Academy of Sciences, Institute for High Performance Computing and Networks and Institute of Applied Mathematics and Information Technology, both of the Italian National Research Council, and also at INTEL Research Labs in Nizhni Novgorod and St. Petersburg. Media citations i¤ Interview to the largest Italian National business newspaper i°Il Sole 24 Orei±, 27.08.2005; i¤ Interview to Italian National newspaper i°Italia Oggii± reprinted also by another Italian National newspaper i°MFi± (Milan Finance), 12.07.2005. i¤ Interview to Italian National radio station Radio24, 23.06.2005. i¤ Cover story in the department Technology, Notable New Patents of the U.S.A. magazine of intellectual property and technology i°IPfrontlinei±, 15.06.2005. All these texts and some additional information can be downloaded from the internet page http://www.theinfinitycomputer.com References 1. Ya.D. Sergeyev, Arithmetic of Infinity, Edizioni Orizzonti Meridionali, CS, 2003. 2. Ya.D. Sergeyev, Computer system for storing infinite, infinitesimal, and finite quantities and executing arithmetical operations with them, patent pending, 08.03.04.
Date: From 2006-04-11 15:30:00 to 2006-04-11 16:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula A
Dipartimento di Fisica ed Astronomia, Università di Catania Italy
Abstract/Calendar
Ferdinando Iucolano:
"Current transport in Ohmic and Schottky contacts on GaN and AlGaN".

Patrick Fiorenza:
"Nanoscale dielectric materials properties and degradation by scanning 
probe based methods".

Date: From 2006-04-07 16:00:00 to 2006-04-07 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula A
Dr. Giuseppe Nicotra
Università di Catania, IMM-CNR Italy
Biological Specimen Characterization through Scanning Transmission Electron Microscopy

Date: From 2006-04-07 09:00:00 to 2006-04-07 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
I Workshop Scuola-Università su progetti ed esperimenti didattici di fisica
Abstract/Calendar
L'incontro intende offrire un'occasione per la comunicazione di esperienze tra quanti operano nel mondo scolastico e universitario realizzando esperimenti didattici nel campo della fisica, attraverso la presentazione e discussione di progetti e risultati da parte dei gruppi di lavoro che li hanno prodotti. L'incontro è aperto a docenti e studenti di ogni ordine e grado. L'iniziativa è promossa dall'Associazione culturale Euresis (Sezione di Catania) e dalla sede locale dell'AIF, con il patrocinio del Dipartimento di Fisica e Astronomia dell'Università di Catania.
Date: From 2006-04-05 16:00:00 to 2006-04-05 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Giuseppe Pappalardo
Università di Catania Italy
Tecniche nucleari e Beni culturali

Date: From 2006-04-05 11:30:00 to 2006-04-05 12:30:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Prof. Martin Stift
Università di Vienna Austria
Polarised spectral synthesis and radiative accelerations in Ap stars

Date: From 2006-04-01 18:00:00 to 2006-04-01 19:00:00
Location: Liceo Scientifico Archimede, Acireale, Aula Magna
Prof. Renato Pucci
Dipartimento di Fisica ed Astronomia, Università di Catania Italy
Dalla celebrazione dell'Anno Mondiale della Fisica al centenario della nascita di Majorana

Date: From 2006-03-30 16:30:00 to 2006-03-30 17:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Gigi Rolandi
CERN Switzerland
CMS Physics Commissioning

Date: From 2006-03-30 12:00:00 to 2006-03-30 13:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Prof. Marcello Anile
Università di Catania Italy
Il progetto europeo COMSON

Date: From 2006-03-28 16:00:00 to 2006-03-28 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula A
Dr. Leonardo Modesto
Università di Bologna Italy
Singolarità di buco nero in loop quantum gravity

Date: From 2006-03-27 15:30:00 to 2006-03-27 16:30:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Sala riunioni
Roberto Cavaliere
Wolfram Research, Inc. Italy
Mathematica: ricerca, sperimentazione e didattica
Abstract/Calendar
Il seminario intende mostrare come il software Mathematica può essere usato in qualsiasi contesto tecnico-scientifico per la ricerca di base, la ricerca industriale o lo sviluppo di applicazioni altamente flessibili ed user-friendly. Infatti, la potenzialità del calcolo numerico, simbolico e grafico, la versatilità nella gestione dei documenti tecnici e l'elevato grado di integrazione con altri ambienti e linguaggi, rendono Mathematica lo strumento ideale per il mondo scientifico. Seguirà una sessione di Q&A. Il seminario, di carattere generale, è rivolto a ricercatori, professori e studenti in discipline tecnico-scientifiche quali: matematica, fisica, astronomia, chimica, biologia, informatica, ingegneria. Roberto Cavaliere è consulente per la Wolfram Research, Inc. É autore del libro "Mathematica: non solo numeri", di recente pubblicato dalla Aracne Editrice.
Date: From 2006-03-27 09:00:00 to 2006-04-01 19:00:00
Location: L'Aquila,
International School of Space Science. The Physics of the Sun: the Active Sun on your Active Desktop

Date: From 2006-03-24 15:30:00 to 2006-03-24 16:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula A
Prof. Nicholas Cowern
University of Surrey UK
Defect engineering for ultra-shallow junctions

Date: From 2006-03-16 18:00:00 to 2006-03-16 19:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Luciano Maiani
Dipartimento di Fisica, Università di Roma La Sapienza Italy
Grande unificazione e decadimento del protone
Abstract/Calendar
Terzo di tre seminari organizzati dalla Scuola Superiore di Catania e dal Dipartimento di Fisica e Astronomia dell'Università di Catania. I Docenti sono invitati a darne informazione in aula a tutti gli studenti di Fisica.
Date: From 2006-03-16 16:00:00 to 2006-03-16 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Attilio Agodi
Dipartimento di Fisica ed Astronomia, Università di Catania Italy
Ettore Majorana e l'evoluzione della Fisica
Abstract/Calendar
La Conferenza, inserita nell'ambito delle attività del progetto "Lauree Scientifiche" e della "settimana scientifica" indetta dal MIUR, apre il ciclo di conferenze divulgative "La Fisica e il cittadino", di cui due, quest'anno, saranno dedicate ad E. Majorana, in occasione del centenario della sua nascita.
Date: From 2006-03-14 18:00:00 to 2006-03-14 19:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Luciano Maiani
Dipartimento di Fisica, Università di Roma La Sapienza Italy
Materia adronica ad alta densità
Abstract/Calendar
Secondo di tre seminari organizzati dalla Scuola Superiore di Catania e dal Dipartimento di Fisica e Astronomia dell'Università di Catania. I Docenti sono invitati a darne informazione in aula a tutti gli studenti di Fisica.
Date: From 2006-03-13 18:00:00 to 2006-03-13 19:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Luciano Maiani
Dipartimento di Fisica, Università di Roma La Sapienza Italy
Dal fotone all'Elettrodinamica Quantistica
Abstract/Calendar
Primo di tre seminari organizzati dalla Scuola Superiore di Catania e dal Dipartimento di Fisica e Astronomia dell'Università di Catania. I Docenti sono invitati a darne informazione in aula a tutti gli studenti di Fisica.
Date: From 2006-03-13 09:00:00 to 2006-03-15 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna + Aula Informatica
Prof. Roberto Barbera
Univ. Catania and INFN Italy
Primo Workshop e Primo Tutorial del Progetto TriGrid VL
Abstract/Calendar
Si porta a conoscenza che nei giorni 13, 14 e 15 marzo p.v. si terranno presso i locali del Dipartimento di Fisica e Astronomia (Aula Magna e Aula Informatica) il Primo Workshop (giorno 13) ed il Primo Tutorial (giorno 14 e 15) del Progetto TriGrid VL. Il Workshop mira a fare il punto sulle applicazioni che si intendono far girare sull'infrastruttura di TriGrid (in corso di realizzazione). A questo proposito, per chi volesse proporre nuove applicazioni, e' stato approntato il form web: https://www.trigrid.it/tc/pv/quest.php L'home page congiunta del workshop e del tutorial, contenente il form di registrazione e i programmi preliminari dei due eventi, si trova all'indirizzo: http://www.trigrid.it/pb/eventi.php
Date: From 2006-03-10 12:00:00 to 2006-03-10 13:00:00
Location: INAF-Osservatorio Astrofisico, Via S. Sofia, 78, Catania, Aula Ovest
Dr. Manfred Kueker
Astrophysikalisches Institut Potsdam Germany
Differential rotation in the lower main sequence

Date: From 2006-03-07 16:30:00 to 2006-03-07 17:30:00
Location: Dipartimento di Matematica e Informatica, Viale A. Doria, 6, Aula 2
Prof. V. Protopopescu
Oak Ridge National Laboratory USA
Quantum Computing: Challenges and Opportunities
Abstract/Calendar
The seminar presents the basic concepts underlying the idea of quantumcomputing that was proposed by Feynman in the '50's, by emphasizing both the potential promises of the approach as well as the difficulties that, to date, have prevented the realization of a practical device. After reviewing the basic tenets of quantum mechanics and the functioning of the elementary quantum gates, we illustrate the efficiency of quantum algorithms over the classical ones with Grover's quantum algorithm for unsorted search. Then we discuss the decoherence effect and present one of the methods proposed to eliminate or at least mitigate it.
Date: From 2006-03-07 12:00:00 to 2006-03-07 13:00:00
Location: ST Microelectronics, saletta R&D
Dr. Giovanni Mannino
IMM-CNR, Catania Italy
Applications of infra-red laser annealing in microelectronics
Abstract/Calendar
Durante il seminario verrà descritta la nuova apparecchiatura recentemente installata presso i laboratori dell'IMM di Catania. Essendo necessario un pass per entrare in ST, chi volesse partecipare al seminario è pregato di rivolgersi a Pachita Torregrossa o a Francesca Nizza (tel. 095 5968211) almeno un paio di giorni prima.
Date: From 2006-03-06 15:30:00 to 2006-03-06 16:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Daniele D'Angelo
Dipartimento di Fisica ed Astronomia, Università di Catania Italy
Defect evolution in SiGe films during Solid Phase Epitaxy

Date: From 2006-02-23 11:00:00 to 2006-02-23 15:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula E
Esami finali, Dottorato di ricerca in Scienza dei Materiali, XVIII ciclo
Abstract/Calendar
S. Battiato, "Studio di film sottili di carbonio amorfo ricchi nella fase carbino e depositati mediante low-energy cluster beam deposition"
N. Giamblanco, "Competitive adsorption of proteins at solid-liquid interfaces"
A. Ruggiero, "Capacitance transient measurements on point defects in silicon carbide"

Date: From 2006-02-23 09:00:00 to 2006-02-23 10:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula A
Abstract/Calendar
Piero La Fata: "Nanomaschere mediante self-assembling di copolimeri a due blocchi".
Francesco Ruffino: "Nucleation and surface diffusion of gold nanoclusters on thermal SiO2".
Viviana Scuderi: "Crescita e caratterizzazione di nanostrutture di C su Si".
Ioannis Deretzis: "Role of contact bonding on electronic transport in metal-Carbon Nanotube-metal systems"

Date: From 2006-02-21 09:00:00 to 2006-02-21 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula E
Carburo di Silicio: un semiconduttore di interesse nucleare
Abstract/Calendar
09.00 Introduzione 
 	  prof. G.Foti Università di Catania
09.10 "Deposizione di SiC epitassiale mediante CVD"
	  dr. G. Abbondanza - Epitaxial Technology Center (ETC), Catania
09.35 "Diodi Schottky in SiC"
	  dr. F. La Via - IMM CNR, Catania
10.00 "Rivelatori radiazioni in  SiC"
	  prof. G.Bertuccio -  Politecnico di Milano
10.30  Intervallo
10.50 "Rivelatori particelle in SiC"
	   prof. F.Nava - Università di Modena
11.10 "Difetti in SiC epitassiale"
	   prof. L.Calcagno - Università di Catania
11.30 Discussione Progetti Nazionali su SiC (PON, POR, INFN, CNR..etc) 
12.00 Conclusioni
      Visita ETC e Reattore SiC epitassiale

Date: From 2006-02-15 11:00:00 to 2006-02-15 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Maria Teresa Dova
UNLP, La Plata Argentina
Mass: Most challenging problem in UHECR
Abstract/Calendar
The phenomenology of EAS is described focussing in the processes that are the main source of sistematic uncertainties affecting the determination of both the energy and specially the mass of primary cosmic rays. Results from Surface Array experiments as well as Fluorescence Detectors are discussed. Two new techniques to separated primary species will be also presented.
Date: From 2006-02-13 15:00:00 to 2006-02-13 16:00:00
Location: ST Microelectronics, saletta R&D
Prof. Bharat Bhushan
Ohio State University USA
Nanotribology and Nanomechanics of MEMS/NEMS and BioMEMS/BioNEMS Materials and Devices
Abstract/Calendar
MEMS/NEMS and BioMEMS/BioNEMS include a variety of sensors, actuators, and complex micro/nanodevices for industrial, consumer, defense, and biomedical applications. MEMS/NEMS devices are made from single-crystal silicon, LPCVD polysilicon and other ceramic films, and polymers. BioMEMS/NEMS devices involve biomaterials; many use PDMS or PMMA polymers for their construction. Many devices involve relative motion, and in those cases tribology and mechanics are of importance1-3. The scale of operation and large surface-to-volume ratio of the devices result in very high retarding forces such as friction and adhesion that seriously undermine the performance and reliability of the devices4-6. For BioMEMS/BioNEMS, adhesion between biological molecular layers and the substrate, and friction and wear of biological layers may be important6,7. Materials used in various devices must exhibit desirable micro/nanoscale tribological and mechanical properties. There is a need to develop lubricants and identify lubrication methods that are suitable for these devices. Measurement and evaluation of mechanical properties of micro/nanoscale structures is also essential to help address reliability issues. Using atomic-force-microscopy-based techniques, we have performed nanotribological and nanomechanics studies of materials and devices and have explored the use of various surface coatings and surface treatments and lubrication approaches for silicon based and PDMS and PMMA surfaces. Scaling effects in adhesion, friction, and wear have been measured and a comprehensive model for scale effects in friction and wear due to adhesion/deformation, and meniscus effects has been developed. To improve adhesion between biomolecules and the silicon based surfaces, chemical conjugation as well as surface patterning have been used. In the area of biomimetics, we have measured surface roughness present on lotus and other leaves and characterized the surface films to understand the mechanisms responsible for high hydrophobicity (high contact angle). We have developed a model for surface-roughness-dependent contact angle and optimum distributions have been developed for superhydrophobic surfaces. Device level devices on various devices including digital micromirror devices for optical projection displays have been carried out. In the area of nanomechanics, AFM based techniques have been developed and used for measurements of mechanical properties of nanostructures, made of silicon, silica and polymers, and scaling effects have been studied. A finite element analysis has been used to model deformation of nanostructures to study the effect of surface roughness and scratches on stresses. Essendo necessario un pass per poter entrare in ST, chi volesse partecipare al seminario è pregato di rivolgersi a Francesca Nizza o a Pachita Torregrossa (tel. 095 5968211) almeno un paio di giorni prima.
Date: From 2006-02-13 09:00:00 to 2006-02-13 17:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula E
Esami finali, Dottorato di ricerca in Fisica, XVIII ciclo
Abstract/Calendar
9:00 Marzio De Napoli
Mass and isospin effects in multifragmentation

9:40 Graziella Ferini
Isospin effects and particle production at intermediate energies

10:20 Elisa Rapisarda
FRIBs: tagged intermediate energy radioactive ion beams at Laboratori Nazionali del Sud 

11:20 Antonella Esposito
La tecnica DPAA (Deep Proton Activation Analysis): un innovativo metodo per la caratterizzazione del corpo di monete antiche

12:00 Mario Maggiore
Design of a superconducting cyclotron for exotic nuclei production and therapy

12:40 Stefano Spataro
Characterization of the HADES spectrometer in pp collisions at 2.2 GeV: elastic scattering and exclusive eta reconstruction

15:30 Katia Biazzo 
Determination of physical parameters of magnetic active regions in stars with different evolutionary stages

16:10 Loredana Spezzi
The young stellar population and the initial mass function in the Chamaeleon II dark cloud

16:50 Domenico D'Urso 
Pierre Auger observatory: fluorescence detector event reconstruction and data analysis

Date: From 2006-02-10 11:00:00 to 2006-02-10 12:00:00
Prof. Maria Teresa Dova
Universidad Nacional de La Plata Argentina
Physics with the P. Auger Observatory
Abstract/Calendar
The Pierre Auger Observatory is a broadly based international effort to explore the upper-end of the cosmic ray spectrum. It will be the largest cosmic ray detector ever built, covering 3000 square kilometres in its full configuration, and the first experiment designed to work in a hybrid detection mode. It is currently under construction in Malargue, Argentina. Extensive air showers are detected by 1600 water Cherenkov detectors and by four fluorescence telescope stations at the perimeter of the array. The first data taken have demonstrated a very good performance of the apparatus. The concept of the experiment, the current status as well as the first physics results will be described in this talk
Date: From 2006-02-08 16:00:00 to 2006-02-08 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Francesco Sylos Labini
Istituto Enrico Fermi, Roma Italy
Gravitational Structure Formation, the Cosmological Problem and Statistical Physics
Abstract/Calendar
Models of structure formation in the universe postulate that matter distributions observed today in galaxy catalogs arise, through a complex non-linear dynamics, by gravitational evolution from a very uniform initial state. Dark matter plays the central role of providing the primordial density seeds which will govern the dynamics of structure formation. We critically examine the role of cosmological dark matter by considering three different and related issues: Basic statistical properties of theoretical initial density fields, several elements of the gravitational many-body dynamics and key correlation features of the observed galaxy distributions are discussed, stressing some useful analogies with known systems in modern statistical physics. In these different contexts we focus on the role of dark matter in standard cosmological models of structure formation, stressing the crucial observational tests and several theoretical open problems.
Date: From 2006-02-07 16:30:00 to 2006-02-07 17:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula B
Dr. Thomas Kauerauf
Katholieke Universiteit Leuven and IMEC Belgium
High-k gate stacks: leakage current reduction and reliability evaluation
Abstract/Calendar
Reducing the physical thickness of the SiO2 gate oxide leads to unacceptably high gate leakage current especially for devices with an equivalent oxide thickness (EOT) below 1.5 nm. Therefore major efforts are presently done to replace the SiO2/poly-Si stack by high-k/metal gate stacks. The presentation is divided into two parts: at first we will introduce the high-k concept and show the impact of the material properties and the stack design on the leakage current. In the second part, we discuss the reliability evaluation of high-k gate stacks. The degradation under electrical stress occurs in different stages and new measurement and analysis techniques were introduced for correct lifetime extrapolations.
Date: From 2006-02-07 16:00:00 to 2006-02-07 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Bernardo Spagnolo
Dipartimento di Fisica e Tecnologie Relative, Università di Palermo Italy
Effetti indotti dal rumore in Sistemi Fisici e Biologici
Abstract/Calendar
Lo studio dei fenomeni indotti dal rumore in sistemi fisici non lineari e lontani dall'equilibrio è uno dei recenti approcci usati per la comprensione dei sistemi complessi, di natura fisica e biologica. Verranno introdotti brevemente i seguenti fenomeni indotti dal rumore: (i) risonanza stocastica, (ii) attivazione risonante, e (iii) stabilità indotta dal rumore. Possibili applicazioni interdisciplinari di un tale approccio sono: a) la dinamica di una giunzione Joesphson, b) il modello di FitzHugh-Nagumo per la dinamica neuronale, e c) la dinamica di popolazioni (sistemi ecologici marini, crescita di cellule cancerogene, etc..).
Date: From 2006-01-31 09:30:00 to 2006-01-31 15:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula E
Esami finali di dottorato, XVIII ciclo (tesi di argomento: Struttura della materia)
Abstract/Calendar
- Massimo Camarda "Effects of Fluctuations on the Superconducting Transitions"

- Luisa Ottaviano "Thin Silicon on Insulator Material: Electrical Properties and Atomic Transport"

- Alberto Piro: "Influence of Point Defects on Boron Electrical Deactivation and Clustering in Si"

- Lucia Romano: "Heavily Doped Si with B and Ga: electrical properties and clustering"

- Paola Russo: "Production and Spectroscopic characterization of semiconductor cluster films"

Date: From 2006-01-23 09:00:00 to 2006-01-23 17:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Scienza dei materiali e microelettronica
Giornata di studio in riconoscimento del contributo di Giuseppe Ferla
Abstract/Calendar
9:00 - 10:00 E. Rimini, G. Foti, S. Coffa: Interventi di saluto ed introduzione
10:00 - 10:30 G. Ottaviani: High temperatures amorphous conductive films
10:30 - 11:00 C. Spinella: Advanced electron microscopy techniques
11:00 - 11:30 Coffee Break
11:30 - 12:00 F. Priolo: Silicon nanophotonics
12:00 - 12:30 S. Solmi: Drogante-Difetti: 40 anni insieme nel silicio
12:30 - 13:00 S. Lombardo: Silicon nanostructures for microelectronics
13:00 - 13:30 M.G. Grimaldi: Ion beam analyses in material science: lattice location and clustering f dopants in Si
13:30 - 15:00 Lunch
15:00 - 15:30 S. Pignataro, G. Cerofolini: Riflessioni
15:30 - 16:00 V. Privitera: Silicon doping methodologies for MOS applications
16:00 - 16:30 V. Raineri: Wide gap semiconductors and power devices
16:30 - 17:00 F. La Via: From silicides to silicon carbide epitaxy
17:00 - 17:30 A. Terrasi: Molecular beam epitaxy of silicon-based materials
17:30 G. Ferla: Conclusioni e prospettive

Date: From 2006-01-20 16:00:00 to 2006-01-20 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr.ssa Maria Miritello
Dipartimento di Fisica, Università di Catania Italy
Proprietà ottiche e strutturali di film di ossido di erbio

Date: From 2006-01-20 15:30:00 to 2006-01-20 16:30:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula Azzurra
Prof. Massimo Cerdonio
INFN, Sez. Padova Italy
Ricerca di onde gravitazionali (2)

Date: From 2006-01-20 11:00:00 to 2006-01-20 12:00:00
Location: Dipartimento di Scienze Chimiche, Aula A
Prof. Fausto Alisei
Università di Perugia Italy
Sintesi, proprietà ed applicazioni di quantum dots

Date: From 2006-01-20 11:00:00 to 2006-01-20 12:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula Azzurra
Prof. Massimo Cerdonio
INFN, Sez. Padova Italy
Ricerca di onde gravitazionali (1)

Date: From 2005-12-22 16:00:00 to 2005-12-22 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Santo Fortunato
Indiana University USA
Web navigation: search or surf?
Abstract/Calendar
Search engines have become key media for our scientific, economic, and social activities by enabling people to access information on the Web in spite of its size and complexity. On the down side, search engines bias the traffic of users according to their page-ranking strategies, and some have argued that they create a vicious cycle that amplifies the dominance of established and already popular sites. We show that, contrary to these prior claims and our own intuition, the use of search engines actually has an egalitarian effect,redirecting more traffic toward less popular sites, even in comparison to what would be expected from users randomly surfing the Web.
Date: From 2005-12-21 11:00:00 to 2005-12-21 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr.ssa Isodiana Crupi
CNR-INFM MATIS, Catania Italy
Energy and spatial distribution of traps in SiO_2 /high-k stacks using Charge-Pumping technique

Date: From 2005-12-19 17:00:00 to 2005-12-19 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Marco Polini
NEST-CNR-INFM Italy
Condensed Matter Physics with Cold Atoms
Abstract/Calendar
In this talk I intend to give a broad introduction of the recent research activity that has been born from the coming together of atomic and condensed matter physics. Namely, using ultracold Bose and Fermi atoms in different geometries and confining potentials it is possible to simulate condensed matter phenomena that are hard to observe in realistic solid-state systems. I will be touching briefly upon some of the key experimental findings over the last few years in the field, such as Bloch oscillations under an applied force in a one-dimensional optical lattice, the formation of highly ordered Abrikosov lattices of vortices in rapidly rotating harmonic traps, and the superfluid-to-Mott insulator transition of a condensate in a three-dimensional optical lattice. Then I will focus mainly on two theoretical proposals we have recently made, (i) a cold atom realization of fully frustrated Josephson junction arrays (M. Polini et al., Phys. Rev. Lett. 95, 010401 (2005)), and (ii) the emergence of atomic-density waves in a trapped attractive fermion gas (Gao Xianlong et al., cond-mat/0506570, cond-mat/0511158, and cond-mat/0512184).
Date: From 2005-12-15 16:00:00 to 2005-12-15 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr.ssa Agata Grasso
Università di Catania Italy
Diffusione e segregazione del Ge durante ossidazione termica di film epitassiali SiGe/Si

Date: From 2005-12-14 16:00:00 to 2005-12-14 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Andrea Carati
Dipartimento di Matematica, Università di Milano Italy
La termodinamica direttamente mediante le medie temporali
Abstract/Calendar
In meccanica statistica si mostra come sia possibile, utilizzando il concetto di medie di insieme, recuperare i principi fondamentali della termodinamica di equilibrio. In questo seminario si vuole mostrare come sia possibile derivare il primo ed il secondo principio usando direttamente il concetto di media temporale, senza passare attraverso il concetto di media di insieme, quindi senza basarsi su nessuna proprietà ergodiche della dinamica. In particolare si mostra come si possa ritrovare l'usuale espressione di Boltzmann per l'entropia sotto opportune ipotesi sulla dinamica. Si mostra anche come dinamiche diverse diano origine ad espressioni diverse per l'entropia.
Date: From 2005-12-13 16:00:00 to 2005-12-13 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Luigi Galgani
Dipartimento di Matematica, Università di Milano Italy
The Fermi Pasta Ulam problem and the metastability scenario
Abstract/Calendar
The original FPU numerical result consisted in exhibiting numerical results in which a classical dynamical system (a model of a one-dimensional crystal) appeared to relax to a state different from the one expected according to equilibrium statistical mechanics (energy equipartition among the normal modes). Such a result was generally considered to be a kind of paradox, and many attempts were thus made with the aim of proving that the phenomenon of nonequipartition disappears in situations of physical interest (namely, in the thermodynamic limit). Here it is discussed how the FPU phenomenon is interpreted within a metastability scenario, which was proposed already in the year 1982 by a group of people around Parisi (Fucito et al), and was recently supported by a group of people in Milano, with results holding in the thermodynamic limit (here, a reinterpretation of the works of Zabusky and Kruskal on the KdV equation does play a relevant role). In particular it is shown how such a scenario allows one to understand a relevant physical phenomenology concerning the times that are required when concrete measurement of the specific heats are performed, in the region where they start decreasing toward zero. A short discussion is also given of the FPU problem in dimensions higher than one.
Date: From 2005-12-12 11:00:00 to 2005-12-12 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Dagmar Adamova
Institute of Physics, Czech Academy of Sciences Czech Republic
Analysis of Open Charm production in NA45/CERES experiment
Abstract/Calendar
We report on Open Charm Analysis in NA45/CERES experiment. The analysis is based on reconstruction of 3-body decays of charged D mesons. The data used for the analysis is the collection of about 45 million central events (30% geom. cross.) accumulated during the CERES run in 1996.
Date: From 2005-12-02 16:00:00 to 2005-12-02 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Helmut Oeschler
Darmstadt University of Technology Germany
Hadronic freeze out from 1 GeV up to 5 TeV, or: Why is it so difficult to “see” a phase transition?
Abstract/Calendar
A review of strange particle production in heavy ion collisions at incident energies from SIS up to collider energies is presented. The observation of strangeness enhancement is critically reviewed. The observed maximum in the K+/pi+ excitation function is roughly described by the statistical model caused by the energy dependence of the chemical freeze-out parameters temperature T and baryo-chemical potential mu_B. It is interesting to note that the maximum occurs when the freeze out changes from a baryon-dominated regime to a one governed by mesons. Which is the key parameter causing the hadronic freeze out? What is expected at LHC energies? Did one observe the phase transition from the QGP?
Date: From 2005-11-28 16:00:00 to 2005-11-28 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Josep Carreras
Università di Barcellona Spain
Electrical and optical characterization of Si nanocrystals embedded in oxide

Date: From 2005-11-28 09:30:00 to 2005-11-28 13:30:00
Location: IMM-CNR, Catania,
CARBON Meeting
Abstract/Calendar
9:30 M.T. Martinez - CSIC Spain
Carbon nanostructures and nanotechnology at the Instituto de Carboquímica (CSIC) of Zaragoza
                                                                                
10:00 S. Scalese - CNR Catania
Characterization of C nanostructures grown on Si
                                                                                
10:30 R. Rizzoli - CNR Bologna
Oriented growth of carbon nanotubes by catalytic CVD
                                                                                
11:00  11:30 Break
                                                                                
11:30 R. Agostino - Università della Calabria
Electronic properties of C nanostructures containing metal clusters
                                                                                
12:00 F. Simone - Università di Catania
Growth of vertically aligned carbon nanotubes using radio frequency magnetron sputtering

12:30 A. La Magna - CNR Catania
Non equilibrium Green functional formalism for the transport calculation in CNT
                                                                                
13.00 Round table discussion
                                                                                
13.30 Lunch

Date: From 2005-11-28 09:00:00 to 2005-12-01 19:00:00
Location: Dip. Fisica e Astronomia, INFN, Sez. Catania, and LNS,
International Workshop on Multifragmentation and Related Topics 2005

Date: From 2005-11-26 09:00:00 to 2005-11-26 13:00:00
Location: Dipartimento di Matematica e Informatica, Viale A. Doria, 6, Aula Magna
!LinuxDay 2005

Date: From 2005-11-25 11:00:00 to 2005-11-25 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Adam Jacholkowski
CERN Switzerland
Parton energy loss effects in heavy ion collisions

Date: From 2005-11-24 16:00:00 to 2005-11-24 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Francesco Catalano
Dip. Fisica e Astronomia, Univ. Catania Italy
Siamo soli nell'Universo?
Abstract/Calendar
2005 World Year of Physics: Anno Mondiale della Fisica a Catania
La Fisica e il cittadino
Date: From 2005-11-24 12:00:00 to 2005-11-24 13:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Adam Jacholkowski
CERN Switzerland
Theoretical and experimental aspects of studying nuclear modification factors in heavy ion collisions

Date: From 2005-11-23 12:00:00 to 2005-11-23 13:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Ananda Santra
Bhabha Research Centre, Mumbai India
Introduction to Effective Field Theory
Abstract/Calendar
Corso di dottorato.

Le successive lezioni saranno:

Lecture 1: Introduction to effective field theory
Lecture 2: Review of basic field theory
Lecture 3: Quantum Chromodynamics and chiral symmetry
Lecture 4: Spontanesous symmetry breaking: Formal effective field theory
Lecture 5: Mesonic and baryonic chiral perturbation theory
Lecture 6: Nuclear effective field theory: Few body problems and nuclear force

Date: From 2005-11-16 15:30:00 to 2005-11-16 16:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Giovanni Russo
Dipartimento di Matematica ed Informatica, Università di Catania
Kinetic Monte Carlo simulation of elastic effects in heteroepitaxial growth
Abstract/Calendar
A numerical method for computation of heteroepitaxial growth in the presence of strain is presented. The model used is based on a solid-on-solid model with a cubic lattice. Elastic effects are incorporated using a ball and spring type model. The growing film is evolved using Kinetic Monte Carlo (KMC) and it is assumed that the film is in mechanical equilibrium. The strain field in the substrate is computed by an exact solution which is efficiently evaluated using the fast Fourier transform. The strain field in the growing film is computed directly. The resulting coupled system is solved iteratively using the conjugate gradient method. Finally we introduce various approximations in the implementation of KMC to improve the computation speed. Numerical results show that layer-by-layer growth is unstable if the misfit is large enough resulting in the formation of three dimensional islands.
A multigrid-Fourier method is formulated for the computation of elastic fields with applications to heteroepitaxy. A discrete ball and spring model with an underlying cubic structure is considered, where the natural lattice spacing of the atoms comprising the deposited film is different than those of the substrate. This system is linearized resulting in a large linear system for the displacement field. An efficient method based on combining Fourier and multigrid formulations to solve this system is presented. In this algorithm, the atoms in the deposited film and the substrate atoms are handled differently. The equations for the elastic displacement of atoms in the film are extended to a rectangular region by the use of fictitious atoms and a connectivity matrix, allowing the application of standard multigrid ideas. Except for the top layer, the atoms in the substrate are completely removed and replaced by equivalent forces which can be efficiently evaluated using a fast Fourier transform. This formulation has been implemented in both two and three dimensions using V-cycles. It is found that the number of V-cycles needed to reach a certain level of accuracy is essentially independent of the system size. Numerical tests show that, for large domains, the multigrid-Fourier method is approximately 6 to 10 times faster than conjugate gradient based methods.
Date: From 2005-11-14 16:00:00 to 2005-11-14 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Salvatore Lombardo
CNR-IMM, Catania Italy
Quantum dot di silicio per lo scaling di memorie non volatili
Abstract/Calendar
In questo lavoro verrà presentata una overview sulle strutture di memoria fabbricate dal nostro gruppo utilizzando nanocristalli di silicio come nodi per l'immagazzinamento di carica. I dispositivi realizzati mostrano caratteristiche promettenti come candidati per lo scaling di memorie non volatili a semiconduttore.
Date: From 2005-11-09 15:30:00 to 2005-11-09 16:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Elena Bruno
Dip. Fisica e Astronomia, Univ. Catania Italy
Effects of He-induced nanovoids on B diffusion and clustering in Si

Date: From 2005-11-09 09:00:00 to 2005-11-11 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64,
2nd Workshop on Very Large Volume neutrino Telescopes (VLVnT2)

Date: From 2005-11-09 09:00:00 to 2005-11-11 19:00:00
Location: Museo Diocesano, Via Etnea, 8, Catania,
2nd International Workshop on "Science, Technology, and Cultural Heritage"

Date: From 2005-11-04 16:00:00 to 2005-11-04 17:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula A
A. Bettini
Università di Padova Italy
Neutrino Physics and Astrophysics

Date: From 2005-11-04 12:00:00 to 2005-11-04 13:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula A
M. Cerdonio
Università di Padova Italy
Da AURIGA a DUAL, verso rivelatori acustici di onde gravitazionali

Date: From 2005-11-04 11:00:00 to 2005-11-04 13:00:00
Location: Dipartimento di Matematica e Informatica, Viale A. Doria, 6, Aula Magna
Cerimonia di apertura dell'Anno Accademico 2005-2006. Facoltà di Scienze Matematiche Fisiche, e Naturali.
Abstract/Calendar
Saluto del Magnifico Rettore, Prof. F. Latteri
Discorso d'apertura del Preside, Prof. A. Lo Giudice
Lezione inaugurale: "Dal Mondo al Supermondo: 
                     Ultime frontiere della fisica delle particelle",
                     Prof. R. Potenza
Relazione scientifica: "Dinamica attiva ed equilibri naturali del
                     territorio di Catania: un'analisi a lungo
                     e a breve periodo",
                     Prof. S. Catalano

Date: From 2005-10-28 09:30:00 to 2005-10-29 19:00:00
Location: Palazzo Impellizzeri, Via della Maestranza, 99, Siracusa,
L'approccio multidisciplinare allo studio ed alla valorizzazione dei Beni culturali
Abstract/Calendar
28/10/2005: Sessione su "Conoscenza e stato dell'arte"
09:30-11:00 Saluto del Magnifico Rettore dell'Università di Catania
            Saluti delle Autorità
            Apertura dei lavori (A. Pezzino)
11:30-12:00 "Scienza e conoscenza nella gestione dei Beni Culturali"
            (A. Paolucci)
15:00-15:30 "La luminescenza nella datazione e nello studio di materiali antichi"
            (M. Martini)
17:00-17:30 "Studio ecologico degli affreschi della Cripta del Peccato originale a Matera"
            (G. Caneva)
18:30-19:30 Presentazione poster

29/10/2005: Sessione su "Tutela e valorizzazione"
09:30-10:00 "L'approccio multidisciplinare alla conoscenza scientifica delle opere d'arte"
            (M. Matteini)
12:30-15:00 Tavola rotonda
15:00-19:00 Seminario satellite: "Mario Minniti e l'eredità di Caravaggio a Siracusa"
15:00-16:30 Saluti delle Autorità
            Apertura dei lavori (V. Greco)
16:30-17:00 "Spunti caravaggeschi nella pittura siciliana del Seicento"
            (F. Cicala Campagna)
17:00-17:30 "Mario Minniti tra maniera e naturalismo caravaggeschi in Sicilia"
            (D. Spagnolo)
18:00-18:30 "Il gesto ed il pathos fisiognomico nell'arte del Seicento in Sicilia"
            (M. Romano)
18:30-19:00 "La tavolozza cromatica del Maestro e della sua bottega"
            (S. O. Troja)

Date: From 2005-10-26 16:00:00 to 2005-10-26 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Massimo Di Toro
Dip. di Fisica e Astronomia, Univ. di Catania, e INFN, Laboratori Nazionali del Sud Italy
La fisica e le domande dell'uomo
Abstract/Calendar
2005 World Year of Physics: Anno Mondiale della Fisica a Catania
La Fisica e il cittadino
Date: From 2005-10-24 17:00:00 to 2005-10-24 18:00:00
Location: Dipartimento di Matematica e Informatica, Viale A. Doria, 6, Aula 124
Dr. Peter Klein
Fraunhofer ITWM, Kaiserslautern Germany
Molecular Materials Modelling at the Fraunhofer-ITWM
Abstract/Calendar
The production, processing, and application of many materials occur far away from thermodynamic equilibrium. As one consequence, materials properties become "history" dependent and even highly non-linear. Currently, the only methods known for studying such highly non-equilibrium processes are atomistic simulations (molecular dynamics and Monte Carlo methods), including quantum effects if necessary. These simulations give insight into complex materials behaviour on atomistic length and time scales. However, the scales relevant for many properties to be controlled by engineers are much larger than the atomistic ones. For numerical simulations in materials science, the challenge therefore consists in bridging the gaps in space and time scales that separate atomic and meso-macroscopic materials manufacturing and materials properties. The ITWM tackle this challenging problem in many related activities which will be reviewed by examples. Molecular modelling is notoriously time consuming. Therefore, new methods for the up-scaling of molecular models are requested both from the point of view of computational costs and from the point of view of interpretation on meso-macroscopic scales. At the ITWM, we are developing simulation technologies which allow for a thermodynamically consistent up-scaling of the local mechanical stress, even if electrons are described quantum mechanically. The coupling of this local stress to an FE-description of bulk material forms the topic of an ongoing PhD thesis. On the other hand, pseudo dynamics models are available for free energy estimations of penetration phenomena which allow for a link to KMC methods via the estimation of activation energies and vibration frequencies. These methodologies, among others, are used in the examples of projects at the ITWM which will be summarized during the talk. In a joint effort with an engineering institute (IFF, Univ. Stuttgart, Germany) and a quantum chemistry group (Prof. Frauenheim, Univ. Paderborn), we explore the formation of local stresses in Cu coatings on Si(111) during a PVD process. The flux of coating atoms is characterized experimentally and forms the input of a molecular dynamics simulation in which the local stress is monitored and controlled by a newly developed simulation methodology. Using this approach, we gain insight into the quantum mechanical origin of mesoscopic stress formation, which will allow in turn for an optimisation of the flux parameters. In an extension of this project, funded by the German Research Foundation DFG, we are studying SiC as substrate and Cu coatings. Our current interest in this field includes Schottky barriers as a function of Cu film variations for example. The software development of a highly scalable, parallel molecular dynamics code is one of our tasks in a joint project with 7 Fraunhofer institutes. Here, we use state of the art software design technology in order to produce, in a software quality aware process, a high performance problem solving environment around a molecular dynamics kernel. This code is getting equipped with parallelized interfaces to quantum chemistry, reactor simulations, and further mesoscopic tools until the end of 2005.
Date: From 2005-10-24 16:00:00 to 2005-10-24 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula E
Dr. Salvatore Lombardo
CNR-IMM, Catania Italy
Quantum dot di silicio per lo scaling di memorie non volatili
Abstract/Calendar
In questo lavoro verrà presentata una overview sulle strutture di memoria fabbricate dal nostro gruppo utilizzando nanocristalli di silicio come nodi per l'immagazzinamento di carica. I dispositivi realizzati mostrano caratteristiche promettenti come candidati per lo scaling di memorie non volatili a semiconduttore.
Date: From 2005-10-14 08:00:00 to 2005-10-17 19:00:00
Location: Porto di Catania,
La Fisica in barca

Date: From 2005-10-13 16:00:00 to 2005-10-13 17:00:00
Location: Osservatorio Astrofisico, Via. A. Doria, 6, Aula Ovest
Prof. Gustavo Medina Tanco
Inst. Astronomico e Geof., Univ. de Sao Paulo Brasil
Ultra high energy cosmic rays in an astrophysical context

Date: From 2005-10-12 16:00:00 to 2005-10-12 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula A
Prof. Klaas Bergmann
Technische Universitat Kaiserslautern Germany
Optical Manipulation of Atoms and Molecules: Controlling population, linear momentum and phase
Abstract/Calendar
Part 1: A comprehensive survey of the STIRAP-physics with example for population
        and momentum transfer
Part 2: Discussion of the concept for the preparation of coherent superpositions of
        degenerate quantum state (these are not wavepackets) and the 
        phase-to-population-mapping approach for the measurement of relative phases 
        between the components
Part 3: Brief outline of possible interesting applications of fully controlled coherent
        superposition states

Date: From 2005-10-10 16:00:00 to 2005-10-10 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Gustavo Medina Tanco
Inst. Astronomico e Geof., Univ. de Sao Paulo, Brasil Brasil
Anistropy at all scales: a possible clue on the cosmic ray origin

Date: From 2005-10-10 15:30:00 to 2005-10-10 16:30:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Sala riunioni
Prof. Rodolfo Bonifacio
INFN, Sez. Milano Italy
Quantum Regime of a Free Electron Laser

Date: From 2005-10-06 17:00:00 to 2005-10-06 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula L
Dr. Cristiane Aragao
INFN - Sez. Catania Italy
Teoria non commutativa e la costante di Planck.

Date: From 2005-10-06 16:00:00 to 2005-10-06 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula L
Dr. Cristiane Aragao
INFN - Sez. Catania Italy
Esperimenti di ether-drift: tra il passato e il presente.

Date: From 2005-10-05 16:00:00 to 2005-10-05 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula L
Prof. Paolo Castorina
Dip. Fisica e Astronomia, Univ. Catania, e INFN, Sez. Catania Italy
Pseudogap in cromodinamica quantistica
Abstract/Calendar
I recenti risultati di RHIC e di QCD su reticolo confermano che lo stato fisico osservato nell'urto relativistico tra ioni pesanti non è un plasma di quark e gluoni debolmente interagenti ma un sistema di costituenti fortemente accoppiati. Utilizzando il modello di Nambu-Jona Lasinio, si avanza l'ipotesi che la fase osservata sia simile alla fase "pseudogap" dei superconduttori ad alta temperatura.
Date: From 2005-10-02 09:00:00 to 2005-10-08 19:00:00
Location: Santa Tecla Palace, Acireale, Catania,
3rd European Summer School on Experimental Nuclear Astrophysics
Abstract/Calendar
Nuclear astrophysics plays a key role for the understanding of the energy production in stars, the stellar evolution and the concurrent synthesis of the elements and their isotopes. It is also a key to explain the ashes of the early universe, to determine the age of the elements and thus the age of the universe, to predict the neutrino luminosity of the Sun and supernovae, etc. In this field nuclear reactions represent the "bone structure" for the above aspects, whose rates need to be determined in the laboratory. Although impressive progress has been made over the past decades, which was rewarded by Nobel prizes, there remain major problems, which challenge the basis of the present understanding.
We have the pleasure to announce a third European summer school on experimental nuclear astrophysics, devoted to the education of young researchers. The school will deal with various aspects of nucleosynthesis, including novel experimental approaches, as well as with microwave background, gamma-astronomy, indirect methods and radioactive ion beams.
Date: From 2005-09-26 09:30:00 to 2005-10-01 18:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
XCI Congresso Nazionale della Società Italiana di Fisica
Abstract/Calendar
Lunedì 26/09/2005

09:30-11:00 Aula Magna, Cerimonia di inaugurazione
                        Relazione del Presidente
			Premiazioni
11:00-12:00 Aula Magna, J. Renn: "L'annus mirabilis di Albert Einstein"
12:00-13:00 Aula Magna, N. D'Amico: "Radio pulsar in sistemi binari relativistici"
      13:30             Cocktail di benvenuto ai partecipanti
15:00-16:00 Aula Magna, R. Petronzio: "Cromodinamica e simulazioni numeriche"
16:00-19:00 Aule,       Relazioni su invito e comunicazioni
      20:30 Chiesa di S. Nicolò all'Arena, Concerto musicale

Martedì 27/09/2005

09:00-12:00 Aule,       Relazioni su invito e comunicazioni
12:00-13:00 Aula Magna, U. Crescenti: "Il contributo delle scienze geologiche
                        per la valutazione delle modificazioni climatico-ambientali"
09:00-13:00 Aula D,     Annullo filatelico speciale
15:00-18:30 Aule,       Relazioni su invito e comunicazioni
18:30-20:30 Aula Magna, Assemblea Generale dei soci

Mercoledì 28/09/2005

09:00-12:00 Aule,       Relazioni su invito e comunicazioni
12:00-13:00 Aula Magna, P. Mazzoldi: "Aspetti dell'impianto ionico nel settore
                        delle nanotecnologie"
15:00-19:00 Aule,       Relazioni su invito e comunicazioni
17:00-19:00 Aula Magna, Tavola Rotonda: "Il primo triennio della riforma"
      20:30 Chiostro del Monastero dei Benedettini: Cena sociale
      
Giovedì 29/09/2005

09:00-12:00 Aule,       Relazioni su invito e comunicazioni
12:00-13:00 Aula Magna, N. H. March: "Quantum statistics of charged particles
                        and fingerprints of Wigner crystallization"
09:00-13:00 Aula D,     Annullo filatelico speciale
15:00-16:00 Aula Magna, S. S. Gambhir: "Of mice and men: molecular imaging in
                        living subjects"
16:00-17:00 Aula Magna, G. Fiorentini: "Alcuni punti chiave in astrofisica nucleare"
17:00-20:00 Aula Magna, Tavola Rotonda: "Le tematiche di Einstein oggi"
                        Intervengono: A. Aspect, A. Giazotto, G. Parisi, C. Rovelli

Venerdì 30/09/2005

09:00-13:00 Aule,       Relazioni su invito e comunicazioni
15:00-16:00 Aula Magna, P. Pistorio: "Creando il futuro con la Nanoelettronica:
                        una strategia per l'Europa"
16:00-18:30 Aula Magna, Conferenza cittadina. A. Zichichi: "L'Anno Mondiale
                        della Fisica: Fermi, Dirac, Einstein"
18:30-19:00 Aula Magna, Cerimonia di chiusura
                        Proclamazione vincitori migliori comunicazioni
			
Sabato 01/10/2005

09:00-18:30             Gita sociale a Siracusa

Date: From 2005-09-26 09:00:00 to 2005-10-15 18:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Nuove sale sperimentali
La radioattività

Date: From 2005-09-20 12:00:00 to 2005-09-20 13:00:00
Location: Osservatorio Astrofisico, Via. A. Doria, 6, Aula Ovest
Dr. Kevin P. Hand
Stanford University USA
The physics and Chemistry of Europa's Ice Shell and Putative Ocean

Date: From 2005-09-20 11:00:00 to 2005-09-20 12:00:00
Location: Osservatorio Astrofisico, Via. A. Doria, 6, Aula Ovest
Prof. Robert W. Carlson
Jet Propulsion Laboratory, California Institute of Technology USA
High Energy Chemistry on the Moons of Jupiter

Date: From 2005-09-19 11:00:00 to 2005-09-19 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula E
Prof. Jiro Matsuo
Quantum Science and Engineering Center, Kyoto University Japan
Cluster ion beam for novel nano-processing

Date: From 2005-09-19 09:30:00 to 2005-10-06 18:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Ingresso palazzina uffici
La Fisica su Ruote
Abstract/Calendar
Mostra interattiva, organizzata dall'INFN, orientata principalmente ai ragazzi delle scuole medie inferiori. La mostra si articola su tre argomenti: le particelle, le forze, le reti. La mostra è aperta a tutti ed è visitabile tutti i giorni dal 19/09 al 6/10/2005 (escluse le domeniche), dalle 9:30 alle 12:30, e dalle 15:30 alle 18:00.
Date: From 2005-09-15 09:00:00 to 2005-09-17 19:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Convegno Nazionale di Radioprotezione (Associazione Nazionale di Radioprotezione, AIRP)

Date: From 2005-09-12 16:00:00 to 2005-09-12 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula E
Dr. Valeria Bertani
Dipartimento di Scienze Chimiche, Università di Catania Italy
A study of low energy deposited silicon clusters through theoretical calculations and "in situ" characterizations
Abstract/Calendar
The study of the structures and properties of small elemental clusters has been an extremely active area of current research, due to the peculiar behavior of these species halfway between that of single atoms and of the bulk phase. In this work silicon nanoclusters are generated by ablation of a high purity polycrystalline rod with a pulsed laser vaporization source and then deposited on a support. Their structure is studied both in the gas phase by means of Time of Flight Mass Spectrometry and in the solid phase through in situ Raman and Infrared Spectroscopy and atomic force microscopy. It comes out that most of the deposited clusters maintain the size possessed in the gas phase; moreover, the presence of hydrogen and of a negligible amount of oxygen is detected and the entity of oxidation increases after exposure to air. In the second part of the work Density Functional Theory is applied to investigate the geometrical structure of silicon clusters (up to ten atoms) and their interaction, in term of structure and energy, with hydrogen and oxygen. The calculations were performed with the Gaussian 03 program suite, adopting the B3LYP functional to calculate the exchange and correlation energy. Si8 has been chosen as model cluster to study the reactivity of silicon clusters with hydrogen and oxygen both kinetically and thermodynamically, in order to explain the experimental evidences. Experimental and calculated infrared spectra are compared.
Date: From 2005-09-09 16:00:00 to 2005-10-07 13:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, 2 piano
Mostra: Alle colonne d'Ercole. Gli estremi confini dell'impresa scientifica

Date: From 2005-09-08 11:00:00 to 2005-09-08 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula A
Dr. Simona Boninelli
CNRS-CEMES, Toulouse France
Defect formation and dopant diffusion in advanced USJ fabrication processes

Date: From 2005-07-12 11:00:00 to 2005-07-12 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula I
Prof. Mihir Chatterjee
Saha Institut of Nuclear Physics, Kolkata India
Particle identification through pulse shape discrimination

Date: From 2005-06-29 16:00:00 to 2005-06-29 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. P. Pizzochero
Università di Milano Italy
Stelle compatte: la frontiera dell'astrofisica nucleare (II)

Date: From 2005-06-29 16:00:00 to 2005-06-29 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula E
Dr. Gianfranco Cerofolini
ST Microelectronics, Catania Italy
Elettronica molecolare

Date: From 2005-06-29 11:00:00 to 2005-06-29 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula C
Dr. Abdou Chbihi
GANIL, Caen France
Nuclear structure studies with 4pi detectors

Date: From 2005-06-28 16:00:00 to 2005-06-28 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. P. Pizzochero
Università di Milano Italy
Stelle compatte: la frontiera dell'astrofisica nucleare (I)

Date: From 2005-06-27 16:00:00 to 2005-06-27 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula B
Dr. Alessandro Scalisi
Laser ablation of metal and semicondutor target in liquid environment: results, future work and perspectives

Date: From 2005-06-24 12:00:00 to 2005-06-24 13:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula A
Prof. Erik Piasecki
Varsaw University Polonia
Dynamical fission in 64Ni + 124Sn

Date: From 2005-06-23 16:00:00 to 2005-06-23 17:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula Conferenze
Dr. Massimo Mannarelli
Massachusetts Institute of Technology, Cambridge USA
Challenges in color superconductivity
Abstract/Calendar
We discuss the properties of matter at high baryonic density and at low temperature. This state of matter is characterized by the phenomenon of Color Superconductivity (CSC) with quarks forming Cooper pairs. Even if intensive studies of the possible CSC phases have been performed it is not clear which is the ground state as a function of density. Indeed, the two most promising CSC phases: the gapless 2SC (g2SC) phase and the gapless CFL (gCFL) phase suffer of a "chromo-magnetic instability" due to the fact that some of the gluonic screening masses become imaginary. We also discuss the possible existence of a BCS-BEC crossover at densities relevant for neutron stars.
Date: From 2005-06-20 16:00:00 to 2005-06-20 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula B
Dr. Vito Raineri
CNR-IMM, Catania Italy
Dispositivi di potenza ed iperfrequenze

Date: From 2005-06-16 17:00:00 to 2005-06-16 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Anatoly Petrukhin
Moscow Engineering Physics Institute, Moscow Russia
Problems on VHE cosmic rays and their possible solution

Date: From 2005-06-16 16:00:00 to 2005-06-16 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Paul Stevenson
Houston USA
Monte-Carlo data for the 4d Ising model: does it fit the conventional renormalization-group description?
Abstract/Calendar
All available data for the 4-dimensional Ising model (the strong-coupling limit of lambda Phi^4 theory) are compared with predictions of the Luscher-Weisz (LW) procedure. The LW procedure involves numerical integration of the 3-loop renormalization-group equations, including higher-twist terms to 1-loop, and involves three constants of integration. By adjusting these three parameters one can obtain a good fit to the broken-phase data, or to the symmetric-phase data, but one cannot fit both phases with the same parameters. The problem lies with the wavefunction renormalization constant, Z, and is correlated with anomalous behaviour seen in the propagator data. The implications for a deeper understanding of the continuum limit of lambda Phi^4 theory will be discussed.
Date: From 2005-06-13 09:00:00 to 2005-06-15 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula E e Aula Informatica
INFN Italy
Abstract/Calendar
This event is aimed at introducing EGEE trainers and applications experts to the facilities offered by the installation of gLite on GILDA and its use both via command-line and the GENIUS portal. The number of participants is limited to 30. The home page of the event is available at this link The agenda of the event is available at this link.
Date: From 2005-06-10 11:30:00 to 2005-06-10 12:30:00
Location: ST Microelectronics, saletta R&D
Dr. Mario Siciliani de Cumis
Scuola Superiore di Catania Italy
Tecniche di microlavorazione per la realizzazione di microsistemi ottici attuati

Date: From 2005-06-10 11:00:00 to 2005-06-10 12:00:00
Location: INGV, Sez. Catania, Piazza Roma, 2, Aula Conferenze
Dr. Paolo Favali
La Scienza degli Osservatori di Fondomare: un nuovo modo per studiare il nostro Pianeta. L'esempio italiano di SN-1.

Date: From 2005-06-10 10:30:00 to 2005-06-10 11:30:00
Location: ST Microelectronics, saletta R&D
Dr. Luigi Consolino
Scuola Superiore di Catania Italy
Realizzazione e caratterizzazione di microconduttori in oro

Date: From 2005-06-01 17:00:00 to 2005-06-01 18:00:00
Location: Dipartimento di Matematica e Informatica, Viale A. Doria, 6, Aula 124
Prof. Diego Molteni
Università di Palermo Italy
Simulazioni di onde d'urto stazionarie in flussi di accrescimento su buchi neri

Date: From 2005-05-27 16:00:00 to 2005-05-27 19:00:00
Location: Facoltà di Ingegneria, Cittadella Universitaria, Aula Magna
Incontro divulgativo su "Dispersione universitaria nelle materie scientifiche: analisi e proposte"
Abstract/Calendar
16:00 Apertura dei lavori
      Magnifico Rettore Università di Catania, Prof. F. Latteri
      Dirigente CSA di Catania, Dott. R. Zanoli

16:30 Relazioni dei gruppi di lavoro

      Prof. A. Ragusa, Dip. di Matematica ed Informatica, Univ. Catania
      Prof.ssa D. Margarone, IM Lombardo Radice, Catania

      Prof.ssa G. Immè, Dip. di Fisica e Astronomia, Univ. Catania
      Prof.ssa M. L. Lizzio, LC Europeo Convitto Cutelli, Catania

      Prof. G. Tomaselli, Dip. di Chimica, Univ. Catania
      Prof.ssa M. Leonardi, LS Boggio Lera, Catania

18:00 Lavori di gruppo

19:00 Conclusione dei lavori

Date: From 2005-05-23 16:00:00 to 2005-05-23 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula E
Dr. Andrea Mastellone
DMFCI, Università di Catania, and INFM-Lab. Matis Italy
BCS-pairing in the repulsive Hubbard model at a mesoscale

Date: From 2005-05-19 16:00:00 to 2005-05-19 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Giuseppe Lacagnina
Regensburg University Germany
Heavy quark phenomenology from lattice QCD

Date: From 2005-05-18 16:30:00 to 2005-05-18 17:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula M
Prof. Gabor Fath
Research Institute for Solid State Physics and Optics, Hungarian Academy of Sciences, Budapest Hungary
Mental representations and the renormalization group
Abstract/Calendar
The purpose of the talk is to show how the physical concept of renormalization can be applied in sociophysics problems, aimed to describe the emerging collective properties in interactive communities of boundedly rational agents. Our model assumes that agents' limited cognitive resources and restricted communication bandwidth require the use of a reduced number of abstract concepts (renormalized degrees of freedom) to describe the rich reality of the world. These concepts make the backbone of a mental representation, whose co-evolution and possible spontaneous ordering in an interacting, heterogeneous community are among the major questions we investigate. Our model may have important bearings on the evolution of language and on the early cultural explosion some 50000 years ago.
Date: From 2005-05-16 09:00:00 to 2005-05-20 19:00:00
Location: ATOMKI, Debrecen, Hungary,
Nuclear Physics in Astrophysics II

Date: From 2005-05-13 11:30:00 to 2005-05-13 12:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Francesco Saverio Pavone
Laboratorio Europeo di Spettroscopia Nonlineare LENS, Firenze Italy
Laser manipulation: from single cell to single molecule

Date: From 2005-05-12 15:00:00 to 2005-05-12 16:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Dr. Theodor W. Hansch
Max-Planck-Institut für Quantenoptik & Department of Physics, Ludwig-Maximilians-Universitat Münich Germany
The heart beat of light

Date: From 2005-05-11 16:00:00 to 2005-05-11 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Andrea Rapisarda
Dip. di Fisica e Astronomia, Univ. di Catania, e INFN, Sez. Catania Italy
Dal caos ai sistemi complessi: aspetti interdisciplinari della fisica
Abstract/Calendar
2005 World Year of Physics: Anno Mondiale della Fisica a Catania
La Fisica e il cittadino
Date: From 2005-05-09 19:30:00 to 2005-05-09 21:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Andrea Tontini
Università di Urbino Italy
La avventura della conoscenza scientifica. Riflessioni di un chimico sperimentale.

Date: From 2005-05-09 09:00:00 to 2005-05-20 19:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Atrio a pianterreno
Potenze di 10
Abstract/Calendar
La Mostra didattica Potenze di 10, realizzata dall'Associazione Euresis in collaborazione con il Dipartimento di Fisica e Astronomia e il Metanexus Institute di Philadelphia, ripercorre, attraverso una carrellata di immagini e commenti, la scala di grandezze dal mondo microscopico a quello macroscopico, attraverso una serie di pannelli relativi a 43 ordini di grandezza. La Mostra viene esposta nell'atrio del Dipartimento per essere visitata anche da gruppi scolastici durante le prossime due settimane, e intende contribuire al quadro delle iniziative per l'Anno Mondiale della Fisica.
Date: From 2005-05-06 17:00:00 to 2005-05-06 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Antonio Bianconi
Dip. Fisica, Università di Roma "La Sapienza" Italy
Feshbach shape resonances in heterogeneous high-Tc superconductors
Abstract/Calendar
We discuss the Feshbach shape resonances in superconducting superlattices of quantum wires and quantum wells, providing the mechanism for evading temperature decoherence effects: superlattices of nanotubes and diborides. A Feshbach shape resonance in the interband pairing term is characterized by quantum superposition of pairs in states corresponding to different spatial locations. It occurs by tuning the chemical potential near a Van Hove-Lifshitz singularity (VHs) in the electronic energy spectrum of the superlattice associated with the change of the Fermi surface dimensionality of one of the subbands. The multiband superconductivity in the superlattice is in the clean limit because the disparity and negligible overlap between electron wave-functions in different subbands suppresses the single electron interband impurity scattering rate.
Date: From 2005-05-04 16:00:00 to 2005-05-04 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Francesco Porto
Dip. di Fisica e Astronomia, Univ. di Catania, e INFN, Laboratori Nazionali del Sud Italy
Le collisioni nucleo-nucleo: il metodo d'indagine sulla materia nucleare
Abstract/Calendar
2005 World Year of Physics: Anno Mondiale della Fisica a Catania
La Fisica e il cittadino
Date: From 2005-05-02 09:00:00 to 2005-05-07 19:00:00
Location: Monastero dei Benedettini,
XLIX Congresso della Società Astronomica Italiana
Abstract/Calendar
Il XLIX Congresso della Società Astronomica Italiana, "Omaggio a Pietro Tacchini: dalla Società degli Spettroscopisti Italiani a Large Binocular Telescope" (http://www.ct.astro.it/sait2005/) si terrà a Catania dal 2 al 7 maggio 2005. Il Congresso si svolgerà nel Monastero dei Benedettini, nella zona centrale della città, complesso edilizio nel quale sorgeva l'Osservatorio ed attualmente sede della Facoltà di Lettere dell'Università di Catania. Si articolerà in 7 sessioni non parallele: Sole, Sistema Solare e sistemi extrasolari, Stelle e mezzo interstellare, Galassie e AGN, Astrofisica delle alte energie, Cosmologia, Strumentazione.
Date: From 2005-04-21 11:00:00 to 2005-04-21 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Aldo Bonasera
LNS-INFN, Catania Italy
Approccio dinamico per le collisioni relativistiche tra ioni pesanti e sonde QGP (RHIC - LHC "ALICE")

Date: From 2005-04-19 16:00:00 to 2005-04-19 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Marcello Rodonò
Dip. di Fisica e Astronomia, Univ. di Catania, e Istituto Nazionale di Astrofisica Italy
Stelle nel cosmo
Abstract/Calendar
2005 World Year of Physics: Anno Mondiale della Fisica a Catania
La Fisica e il cittadino
Date: From 2005-04-15 10:30:00 to 2005-04-15 11:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Manuel Valverde
University of Granada Spain
Charged-current neutrino-nucleus reactions at intermediate energies

Date: From 2005-04-14 16:15:00 to 2005-04-14 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula E
Prof. Pasquale Tomasello
Dip. Fisica UniCT Italy
Una, ex originali, nuova traduzione (in Italiano) dei lavori di A. Einstein del 1905: Spigolature d'impressioni e considerazioni. I Parte: Relatività ristretta
Abstract/Calendar
La presentazione è primariamente intesa e concepita per studenti di Fisica; tuttavia fr&fei., docenti e ricercatori e quanti altri interessati alla chiacchierata sono benvenuti.
Date: From 2005-04-14 15:00:00 to 2005-04-14 16:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula L
Prof. Enrico Giannetto
Università di Bergamo Italy
Einstein, Hilbert, il principio di Mach e l'interpretazione della Relatività Generale all'interno della concezione elettromagnetica della natura

Date: From 2005-04-14 12:00:00 to 2005-04-14 13:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula A
Viecheslov Kuznetsov
INR, Moscow Russia
Compton scattering of polarized photons from 0.7 to 1.5 GeV

Date: From 2005-04-13 11:00:00 to 2005-04-13 12:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Aula A
Viecheslov Kuznetsov
INR, Moscow Russia
Search for the non strange pentaquark at GRAAL facility

Date: From 2005-04-13 10:30:00 to 2005-04-13 11:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula B
Dr. Vincenzo Greco
A&M Texas USA
Segnali di QGP a RHIC

Date: From 2005-04-12 10:00:00 to 2005-04-12 11:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Carlo Coluzza
Università di Roma “La Sapienza” Italy
“La scienza delle superfici applicata ai Beni Culturali”
Abstract/Calendar
L'interesse nello studio delle superfici negli oggetti artistici è legato alla definizione del suo stato di degrado, oltre che a quello di analizzare i risultati di una procedura conservativa o di restauro. Ma la superficie di un oggetto d'arte è anche l'immagine della perizia dell'autore e della sua abilità nella scelta degli strumenti, delle sue conoscenze tecniche: è generalmente sulla superficie che si trova impressa la completezza dell'opera e il suo risultato finale. La conoscenza delle proprietà chimico-fisiche della superficie permette di interpretare la storia passata, di sapere lo stato attuale e di prevedere l'evoluzione futura in rapporto alle condizioni circostanti. Per questo scopo si sono sviluppate tecniche e metodologie in grado di fornire informazioni specifiche sulle proprietà di questi atomi al confine dei solidi. In particolare saranno presentati alcuni esempi di studi eseguiti mediante tecniche di microscopia elettronica e/o di microscopia a forza atomica, evidenziando le caratteristiche specifiche delle due tecniche in relazione allo studio di campioni di interesse per i beni culturali.
Date: From 2005-04-07 15:00:00 to 2005-04-07 16:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Dr. Peter Ring
Technical University of Munich Germany
Collective excitations and applications beyond mean field

Date: From 2005-04-06 16:00:00 to 2005-04-06 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Salvatore Lo Nigro
Dipartimento di Fisica e Astronomia, Università di Catania Italy
Radiazioni per la salute: dai raggi X agli adroni
Abstract/Calendar
2005 World Year of Physics: Anno Mondiale della Fisica a Catania
La Fisica e il cittadino
Date: From 2005-04-05 15:00:00 to 2005-04-05 16:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Dr. Peter Ring
Technical University of Munich Germany
Density functional theory in nuclei: groundstate properties of nuclei far from stability

Date: From 2005-03-31 11:00:00 to 2005-03-31 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula L
Prof. Paolo Castorina
Dipartimento di Fisica e Astronomia, Università di Catania, e INFN, Sez. Catania Italy
Dinamica delle opinioni di voto e previsioni per le elezioni regionali

Date: From 2005-03-30 09:00:00 to 2005-04-02 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64,
Incontri di Fisica delle Alte Energie

Date: From 2005-03-25 13:00:00 to 2005-03-25 14:00:00
Location: DMFCI, Via A. Doria, 6, Aula V7
Dr. Sabrina Maniscalco
Durban University South Africa
Trapped ion simulator of open quantum systems

Date: From 2005-03-23 17:00:00 to 2005-03-23 18:00:00
Location: DMFCI, Via A. Doria, 6, Aula V7
Prof. Hiromichi Nakazato
Waseda University, Tokyo Japan
Repeated measurement based extraction and purification schemes in trapped ions

Date: From 2005-03-23 17:00:00 to 2005-03-23 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Santo Fortunato
Indiana University USA
Voter models versus real elections

Date: From 2005-03-21 17:00:00 to 2005-03-21 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula A
Prof. Giuseppe Compagnini
Dip. Scienze Chimiche, Università di Catania Italy
Low energy cluster beam deposition of nanostructured covalent thin films

Date: From 2005-03-18 16:00:00 to 2005-03-18 20:00:00
Location: Dipartimento di Matematica e Informatica, Viale A. Doria, 6, Aula Magna
VIII University Day: Tavola rotonda dal titolo: "Cara Università ti scrivo ... Caro studente rispondo". Ricerca e dialogo.
Abstract/Calendar
Corrispondenza particolare: Dialogare per l'Università
Marco Battaglia - Incaricato Regionale della F.U.C.I.

Rapporti tra Enti Pubblici e Imprese Private per l'Innovazione
Prof. Gaetano Foti - Ordinario di Fisica Applicata, Università degli Studi di Catania

Università e Ricerca nell'Era di Internet
Prof. Salvatore Greco - Straordinario di Matematica Generale, Università degli Studi di Catania

Come gli studenti e il C.N.S.U. possono garantire il futuro della ricerca universitaria
Salvatore Muratore - Presidente del C.N.S.U.


Interventi programmati e Dibattito

Modera
Donatella Puglisi - Incaricata Regionale della F.U.C.I.

Saranno presenti
Prof. Ferdinando Latteri - Magnifico Rettore dell'Università degli Studi di Catania
S.E. Mons. Salvatore Gristina - Arcivescovo di Catania
Prof. Giuseppe Rossi - Direttore del Centro regionale per l'Educazione Cattolica, la Cultura, la Scuola e l'Università della C.E.Si.

Date: From 2005-03-18 09:30:00 to 2005-03-18 10:30:00
Location: Osservatorio Astrofisico, Via. A. Doria, 6, Aula Est
Dr. Alberto Cellino
Istituto Nazionale di Astrofisica, Osservatorio Astronomico di Torino Italy
Osservazioni di asteroidi con Gaia

Date: From 2005-03-16 16:00:00 to 2005-03-16 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Claudio Spitaleri
Dipartimento di Metodologie Fisiche e Chimiche per l'Ingegneria, Università di Catania, and INFN-LNS Italy
Le stelle in laboratorio
Abstract/Calendar
2005 World Year of Physics: Anno Mondiale della Fisica a Catania
La Fisica e il cittadino
Programma Conferenze Febbraio-Marzo 2005
Date: From 2005-03-16 09:30:00 to 2005-03-16 13:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Automotive and Grid Computing
Abstract/Calendar
Programma:
09:30 Gaetano Foti, Univ. di Catania: Introduzione
10:15 Roberto Barbera, Univ. di Catania e INFN, Sez. Catania: "Grid computing: Stato dell'arte"
      Gino Bella, Consorzio SCIRE: "Metodologie di simulazione di veicoli e motori a combustione interna" 
11:00 Coffe break
11:15 Interventi concordati:
      Pino Ferla, STMicroelctronics, Catania
      Carlo Campisano, APINDUSTRIE
      Rosario Lanzafame,  Univ. di Catania
      Alessandro De Maio, Nu.M.I.D.I.A. srl
12:00 Dibattito
12:45 Conclusioni

Date: From 2005-03-14 17:00:00 to 2005-03-14 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula A
Dr. Diederik Wiersma
Laboratorio LENS, Firenze Italy
Light in and from photonic meta materials

Date: From 2005-03-10 16:00:00 to 2005-03-10 17:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Viatcheslav Kouznetsov
Institute for Nuclear Research, Moscow Russia
Eta photoproduction at GRAAL: search for the non-strange pentaquark

Date: From 2005-03-09 16:00:00 to 2005-03-09 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Emanuele Rimini
Dipartimento di Fisica e Astronomia, Università di Catania, and CNR, IMM Italy
Dal fotone alla fotonica
Abstract/Calendar
2005 World Year of Physics: Anno Mondiale della Fisica a Catania
La Fisica e il cittadino
Programma Conferenze Febbraio-Marzo 2005
Date: From 2005-03-07 11:00:00 to 2005-03-07 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Una giornata fra le particelle.
Abstract/Calendar
2005 World Year of Physics: Anno Mondiale della Fisica a Catania
Incontro con le scuole, a cura dell'INFN e del CERN, della serie "Hands on Particle Physics", European Masterclasses for High School Students. Masterclass di Catania.
Nel Marzo 2005 circa 2000 studenti delle scuole secondarie superiori di 18 diverse nazioni Europee potranno accedere all'affascinante mondo della fisica delle particelle elementari. Ognuna delle 70 Università o Enti di ricerca partecipanti organizzerà una giornata full immersion di lezioni, esercitazioni e misure di grandezze fisiche utilizzando dati di esperimenti reali provenienti da laboratori internazionali.
Programma
Ore  11.00 - 13.00 - Aula MAGNA, Conferenze sui temi:
Quali sono i costituenti della materia?
Come possiamo identificarli?
Quali sono le forze che li tengono uniti?
Come agiscono queste forze?
Quanto profondamente abbiamo compreso i segreti delle forze e dei costituenti elementari?
Ore  14.30 - 18.00
Esercitazioni in aula informatica

Date: From 2005-02-25 10:00:00 to 2005-02-25 13:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula E
Esami finali del Dottorato di ricerca in Fisica - XVII ciclo
Abstract/Calendar
Antonino Cosentino, "Spettroscopia Raman per i beni culturali. Il progetto Coloraman"
                                                                                
Agnese Zuccarello, "Aspetti metodologici e problematiche nell'applicazione della risonanza paramagnetica elettronica alla caratterizzazione e datazione di cristalli naturali"

Date: From 2005-02-25 09:00:00 to 2005-02-25 16:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula A
MATIS Day
Abstract/Calendar
09.00 09.10 F. Priolo: Opening remarks
09.10 09.25 E. Rimini: Presentaione del Dipartimento CNR "Materiali e dispositivi"
09.25 09.40 C. Spinella: Presentazione del Progetto "Microelettronica"
09.40 10.00 D. Wiersma: Optics of complex photonic nano structures
10.00 10.20 C. Sada: Guide di luce in materiali dielettrici per applicazioni in optoelettronica ed ottica integrata
10.20 10.40 A. Irrera: Proprietà ottiche di nanostrutture di Silicio
10.40 11.00 BREAK
11.00 11.20 G. G. N. Angilella: Clusters atomici e molecolari (da H a Si), e `funi' di nanotubi
11.20 11.40 P. Russo: Deposizione e caratterizzazione di cluster di semiconduttori
11.40 12.00 A. Terrasi: Sistemi Si/Ge: ossidazione, substrati virtuali e nanostrutture
12.00 12.20 BREAK
12.20 12.40 L. Romano: Ion beam analisys and processing of solid materials
12.40 13.00 E. Napolitani: Diffusione e clustering in Silicio cristallino
13.00 13.20 S. Mirabella: Difetti di punto e impurezze in Silicio cristallino
13.20 15.00 BREAK
15.00 15.20 J. Siewert: Dispositivi e protocolli per computazione quantistica a stato solido
15.20 15.40 E. Paladino: Rumore e decoerenza in nanodispositivi coerenti
15.40 16.00 F. S. Cataliotti: Dispositivi quantistici con materia degenere
16.00 16.20 G. Falci: Controllo e networking di dispositivi quantistici
16.20 16.30 Closing remarks

Date: From 2005-02-23 16:00:00 to 2005-02-23 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Emilio Migneco
Dipartimento di Fisica e Astronomia, Università di Catania, and INFN, Laboratori Nazionali del Sud Italy
Neutrini: un nuovo modo di guardare l'Universo
Abstract/Calendar
2005 World Year of Physics: Anno Mondiale della Fisica a Catania
La Fisica e il cittadino
Programma Conferenze Febbraio-Marzo 2005
Date: From 2005-02-16 17:30:00 to 2005-02-16 18:30:00
Location: Laboratori Nazionali del Sud (LNS), Catania, Sala riunioni
Prof. Carlos Bertulani
Department of Physics, University of Arizona, Tucson USA
New directions in nuclear (astro) physics

Date: From 2005-02-16 16:00:00 to 2005-02-16 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Renato Potenza
Dipartimento di Fisica e Astronomia, Università di Catania, and INFN, Sez. Catania Italy
Mondo e Supermondo: come appariranno quando l'acceleratore LHC sarà in funzione?
Abstract/Calendar
2005 World Year of Physics: Anno Mondiale della Fisica a Catania
La Fisica e il cittadino
Programma Conferenze Febbraio-Marzo 2005
Date: From 2005-02-16 16:00:00 to 2005-02-16 17:00:00
Location: Osservatorio Astrofisico, Via. A. Doria, 6, Aula Ovest
Prof. Luciano Rezzolla
Dept. of Physics and Astronomy, Louisiana State Univ., USA, and SISSA, Trieste Italy
3D collapse to rotating black holes: dynamics of matter, trapped surfaces and gravitational radiation
Abstract/Calendar
I will first review the present status of numerical relativity, that is, the approach to the solution of Einstein equations by means of computational physics techniques. I will then concentrate on the application of a newly developed 3D, parallel and fully general relativistic hydrodynamics code the gravitational collapse of uniformly rotating neutron stars to Kerr black holes. Special attention will be dedicated to the dynamics of the matter as well as to that of the trapped surfaces that are generated during the collapse. The use of these surfaces, allows for a precise measurement of the black hole mass and spin. Finally, I will discuss some recent results about the extraction of gravitational waves from this process and the calculation of the efficiency of gravitational radiation in gravitational collapse.
Date: From 2005-02-15 16:00:00 to 2005-02-15 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Frieder Kleefeld
Centro de Fisica das Interaccoes Fundamentais, Instituto Superior Tecnico Portugal
Symanzik's precarious theory - dead or alive?!
Abstract/Calendar
Quantum Field Theory, even though virtually forbidden by L.D. Landau and colleagues for more than a decade due to the unresolved issue of triviality, led in spite of triviality to the theoretical prediction of the electrons magnetic moment, the accuracy of which has not yet been met even by state of the art most refined present experiments. Symanzik's precarious theory, even though virtually declared dead by the 2004's Nobel-prize committee, is not only more than alive since the latest discoveries made within the context of PT-symmetric quantum (field) theory, yet also serves as a most vital candidate in contributing to the explanation of the theory of strong interaction and its unification with the electroweak sector of the standard model of particle physics. It is the purpose of our presentation to explain why this is so.
Date: From 2005-02-15 09:30:00 to 2005-02-15 13:30:00
Location: Osservatorio Astrofisico, Via. A. Doria, 6, Aula Est
Esami finali del Dottorato di ricerca in Fisica - XVII ciclo
Abstract/Calendar
Daniela Ferro, "Non-thermal electrons in the intergalactic medium. Visualization analysis tools."
Silvio Lecce, "Studio sismologico della stella di tipo solare Procione A"
Alessio Domenico Romeo, "Simulating clusters and groups of galaxies: The gas, the galaxy populations and the intra-clusters stars"

Date: From 2005-02-08 12:00:00 to 2005-02-08 13:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula C
Dr. L. Ottaviano
Dipartimento di Fisica, Università degli Studi dell'Aquila Italy
Structural and electronic properties of two dimensional metals and alloys formed onto Si(111)

Date: From 2005-02-01 10:00:00 to 2005-02-01 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula B
Esami finali del Dottorato di ricerca in Fisica (XVII ciclo)
Abstract/Calendar
10:00 Sonia Orrigo, "Experimental and theoretical study of 15C via the (7Li,7Be) reaction and QRPA microscopic approach"
      Alessandro Pluchino, "Metastability, nonextensivity and glassy dynamics in a class of long-range Hamiltonian models"
15:30 Angelo Rinollo, "Indirect study of the 2H(d,p)3H reaction at astrophysical energies via the quasi-free break-up mechanism"
      Salvatrice Terranova, "Dynamics of colors: signals of the quark-gluon plasma"

Date: From 2005-01-27 09:00:00 to 2005-01-27 14:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Esami finali del Dottorato di ricerca in Fisica (XVII ciclo)
Abstract/Calendar
Simona Boninelli, "Properties and Evolution of Si Nanoclusters studied by Energy Filtered Transmission Electron Microscopy"

Brunella Cafra, "Phase transition and structural properties of thin Co-Ni and Ni layer on silicon"

Giuliana Impellizzeri, "Fluorine enriched silicon: properties and advantages"

Maddalena Spadafora, "Thermal oxidation of Si1-xGex epitaxial layers"

Date: From 2005-01-26 11:00:00 to 2005-01-26 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula C
Màrcia Regina Dias Rodrigues
Istituto de Fisica, Universidade de São Paulo, São Paulo, SP Brasil
Coulomb-Nuclear Interference with isoscalar probes in nuclei of A ~ 100
Abstract/Calendar
The São Paulo Nuclear Spectroscopy with Light Ions Group developed a research line to explore the Coulomb-Nuclear Interference (CNI) in the inelastic scattering of isoscalarly interacting projectiles by nuclei, to follow the evolution of the collective behavior throughout isotopic chains in transitional mass regions. In the A ~ 100 the CNI was applied to the first quadrupolar transition, allowing for the simultaneous extraction of the values of B(IS2), and of the ratios of B(E2)/B(IS2) obtained in this mass region pointed out that neutrons are responsible for some interesting effects outside the simple collective interpretation.
Date: From 2005-01-21 16:00:00 to 2005-01-21 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Attilio Agodi
Dipartimento di Fisica e Astronomia, Università di Catania Italy
La Fisica e il cittadino. Conferenza inaugurale. 2005: Perché Anno Mondiale della Fisica?
Abstract/Calendar
2005 World Year of Physics: Anno Mondiale della Fisica a Catania
La Fisica e il cittadino
Precederanno gli indirizzi di saluto da parte del Magnifico Rettore, Prof. F. Latteri.
Date: From 2005-01-21 15:00:00 to 2005-01-21 16:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Orfeu Bertolami
Instituto Superior Técnico, Depto. Física, Lisboa Portugal
L'anomalia del Pioneer: Implicazioni fisiche e cosmologiche

Date: From 2005-01-21 10:00:00 to 2005-01-21 11:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula M
Prof. Orfeu Bertolami
Instituto Superior Técnico, Depto. Física, Lisboa Portugal
Indicazioni astrofisiche sulla violazione dell'invarianza di Lorentz

Date: From 2005-01-11 09:00:00 to 2005-01-12 19:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Primo Convegno Nazionale sulla Fisica di ALICE

Date: From 2005-01-01 00:00:00 to 2006-01-01 00:00:00
World Year of Physics 2005

Date: From 2004-12-17 10:30:00 to 2004-12-17 11:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula D
Prof. Stephan Rosswog
Bremen University Germany
Compact binary mergers: the influence of the equation of state
Abstract/Calendar
Compact, stellar binary systems (either two neutron stars or a neutron star and a stellar mass black hole) are of high astrophysical interest. They are the most promising sources for ground-based gravitational wave detectors that will reach their design sensitivities in the very near future. The coalescence of such binary systems is believed to be at the heart of (short) Gamma-ray Burst, very violent cosmological explosions. Moreover, matter ejected in such an encounter might contribute to the enrichment of galaxies with heavy elements and possibly be related to cosmic rays. I will report on the results from my latest simulations of these events with a particular focus on the influence of the nuclear equation of state. Observable consequences like neutrino and gravitational wave emission will be discussed.
Date: From 2004-12-16 15:30:00 to 2004-12-16 16:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Bennett Link
Bozeman, Montana State University USA
Neutrino Pulsars
Abstract/Calendar
Neutron stars are compact, rapidly-rotating, strongly-magnetized stellar remants. The rotating magnetic field of a neutron star creates strong voltages above the star that strip charges from the surface, creating a dense magnetosphere. Charges are accelerated in the magnetosphere to highly-relativistic energies, producing a radio beam. Neutron stars are usually detected as "radio pulsars", when the beamed radiation repeatedly sweeps past our line of sight at the star's spin frequency. I will describe how the same acceleration physics that leads to the radio beam could also produce high-energy muon neutrinos in young neutron stars; these objects could be detected as "neutrino pulsars" by AMANDA-II, ANTARES, NEMO, IceCube and other large-area neutrino detectors currently operating or planned. Detection of neutrino pulsars would allow new probes of the poorly-understood magnetosphere that surrounds a neutron star.
Date: From 2004-12-13 15:00:00 to 2004-12-13 17:00:00
Location: Facoltà di Economia, Corso Italia, 55, Catania, Sala Professori
Paolo Castorina
Dipartimento di Fisica e Astronomia, Univ. Catania, and INFN, Sez. Catania Italy
Effetti di feedback in meccanica statistica ed eventuali applicazioni in economia

Date: From 2004-12-03 17:00:00 to 2004-12-03 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula E
Prof. Ulrich Weiss
II Institute für Theoretische Physik, Stuttgart Germany
Decoherence and non-equilibrium decay in the Spin-Boson model

Date: From 2004-11-26 11:00:00 to 2004-11-26 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Adam Jacholkowski
CERN-Geneva Switzerland
From raw experimental data to physics results - the CERN NA57 experiment case
Abstract/Calendar
In this lecture I will present and discuss the main steps of the analysis process leading from raw data to physics results on an example of the CERN heavy ion experiment NA57. The main stress we be put on the problems related to the tracking in the silicon pixel telescope and identification of strange particles through their decay topology in a difficult environment of high particle multiplicity.
Date: From 2004-11-24 16:00:00 to 2004-11-24 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Adam Jacholkowski
CERN - Geneve Switzerland
Energy density (multiplicity) and expansion dynamics of the hadronic fireball produced in central Pb-Pb collisions at the CERN SPS at 158 GeV/c
Abstract/Calendar
One of the main goals of the high energy heavy-ion physics is to study bulk properties of the fireball created in central collisions in order to detect signatures of the possible phase transition from hadrons to a quark-gluon plasma, once the sufficient temperature and density of the system is reached. Multiplicity of particles produced in the central rapidity region is directly related to the energy density while the transverse mass spectra reflect the temperature end expansion dynamics of the produced fireball. In this talk I will concentrate on these two basic measurements as performed by the CERN experiment NA57.
Date: From 2004-11-23 16:00:00 to 2004-11-23 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Daniel Gezari
NASA/Goddard Space Flight Center USA
Four Proposed Experimental Tests of Special Relativity
Abstract/Calendar
Four experiment concepts are described, which could determine if the speed of light is invariant to the motion of the observer. The experimental evidence for special relativity effects in light is not robust. Surprisingly, the speed of light has never been measured directly with a moving detector to test this fundamental assertion of special relativity. There are also apparent conflicts between well-known optical effects and the modern view of how light propagates, which foster lingering concerns that the speed of light may not be invariant after all. This issue can now be resolved by direct measurement. Recent advances in femtosecond optical pulse timing techniques should now allow any dependence of the speed of light on the motion of the detector to be measured directly in the laboratory with a detector moving as slowly as ~100m/s. This test could also be done with an existing retro-reflector on the Moon, by timing observations of millisecond pulsars, or with an optical test range set up on the lunar surface. It is now possible to measure the speed of light directly several ways using a moving detector. The first measurement of the speed of light with a moving detector is long overdue and could settle the matter, one way or the other.
Date: From 2004-11-18 09:30:00 to 2004-11-18 10:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula I
Dr. Giovanni Cennini
Physikalisches Institut der Universitat Tübingen Germany
The Realization Of An All-Optical Atom Laser
Abstract/Calendar
While conventional experiments on Bose-Einstein condensation (BEC) are based on magnetic traps, very recently has been demonstrated the direct production of a Bose-Einstein condensate in a purely optical dipole trap (All-Optical BEC). This allows for the production of gases in quantum degenerate regime in external potential which are independent on spin-projections. The stability of the chemical potential of an all-optically generated Bose-Einstein condensate is orders of magnitudes higher than that of a conventional Bose condensate based on spin-polarized atoms. This is an important feature for precision measurements with atoms in degenerate regime. In our experimental setup, we use an optical dipole traps for cold Rubidium atoms (87Rb) which is based on a quasi-static laser light field generated by a CO2 laser. In a running wave optical dipole trap, magnetic-field insensitive Bose-Einstein condensates are produced. As first application, we have demonstrated for the first time a novel type of Atom laser. Since the degenerate regime is reached, the optical trapping potential is smoothly ramped down. Gravity couples out of the trap part of the condensate, generating a continuous coherent monoenergetic atomic beam. The stability of the atom laser beam which is ultimately limited by trapping laser intensity fluctuations. In a second application, we have directly achieved Bose-Einstein condensation in a mesoscopic optical lattice whose lattice size is 5.3 µm. Typically, 15 magnetic-field insensitive Bose-Einstein condensates are produced. Although each condensate has an arbitrary phase, we can observe an atomic interference when they are allowed to overlap in space. Experimental studies on reaching of an array of microcondensates in a purely 2D space are currently being carried out.
Date: From 2004-11-16 17:00:00 to 2004-11-16 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Asle Sudbø
NTNU, Trondheim Norway
A superconductor to superfluid transition in liquid metallic hydrogen
Abstract/Calendar

Although hydrogen is the simplest of atoms, it does not form the simplest of solids or liquids. Quantum effects in these phases are considerable (a consequence of the light proton mass) and they have a demonstrable and often puzzling influence on many physical properties, including spatial order. To date, the structure of dense hydrogen remains experimentally elusive. Recent studies of the melting curve of hydrogen indicate that at high (but experimentally accessible) pressures, compressed hydrogen will adopt a liquid state, even at low temperatures. In reaching this phase, hydrogen is also projected to pass through an insulator-to-metal transition. This raises the possibility of new state of matter: a near ground-state liquid metal, and its ordered states in the quantum domain. Ordered quantum fluids are traditionally categorized as superconductors or superfluids; these respective systems feature dissipationless electrical currents or mass flow. Here we report an analysis based on topological arguments of the projected phase of liquid metallic hydrogen, finding that it may represent a new type of ordered quantum fluid. Specifically, we show that liquid metallic hydrogen cannot be categorized exclusively as a superconductor or superfluid. We predict that, in the presence of a magnetic field, liquid metallic hydrogen will exhibit several phase transitions to ordered states, ranging from superconductors to superfluids.
Date: From 2004-11-16 16:00:00 to 2004-11-16 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula B
Dr. Francois De Oliveira
The First SPIRAL Experiment, Study of 19Na
Abstract/Calendar
The excitation function for the elastic scattering reaction p(18Ne,p)18Ne was measured with the first radioactive beam from the SPIRAL facility at the GANIL laboratory and with a dedicated solid cryogenic hydrogen target. Several broad resonances have been observed, corresponding to new excited states in the unbound nucleus 19Na. Two-proton emission events have also been identified and will be discussed.
Date: From 2004-11-11 16:00:00 to 2004-11-11 19:15:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Celebrazioni per il 50 anniversario della Fondazione del CERN
Abstract/Calendar
Sessione 1  -  Presidente: R. Potenza
	ore 16:00: D. Denegri (CERN/SACLAY)
		"The W and Z Discovery at CERN"
	ore 17:00: M. Consoli (INFN Catania)
		"L'età dell'oro del LEP"
ore 18:00:	Coffee Break
Sessione 2  -  Presidente: A. Palmeri
	ore 18:15: S. Albergo (Università e INFN Catania)
		"L'esperimento CMS al CERN"
	ore 18:45: A. Badalà (INFN Catania)
		"L'esperimento ALICE al CERN"
ore 19:15: Chiusura dei Lavori

Date: From 2004-11-09 16:00:00 to 2004-11-09 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Harry Bernas
CNRS-Université d'Orsay, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM) France
Magnetic nanostructure modification by ion beams

Date: From 2004-11-08 17:30:00 to 2004-11-08 18:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula E
Dr. Steven Jefferts
NIST (National Institute of Standards and Technology) - Time and Frequency Division, Boulder, CO USA
Atomic Clocks, Past, Present and Future

Date: From 2004-10-28 16:00:00 to 2004-10-28 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Cristiane Aragao
Università di San Paolo Brasil
Cancellazione degli infiniti nella teoria lambda phi^4 per mezzo di uno scaling semplice

Date: From 2004-10-28 12:00:00 to 2004-10-28 13:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula E
Prof. Francesco Riggi
Dipartimento di Fisica e Astronomia, Università di Catania Italy
Il Van de Graaff e la fisica a Catania
Abstract/Calendar
Dal 25 Ottobre al 5 Novembre sara' esposta la Mostra "Il Van de Graaff e la fisica a Catania", realizzata nell'ambito di un progetto MIUR per la diffusione della cultura scientifica. La Mostra, che e' stata divulgata anche in ambito scolastico, comprende una colonnina multimediale su cui sara' possibile visionare un CD sulla storia e l'attivita' condotta con l'acceleratore Van de Graaff dalla data della sua installazione (1956) al 2002, un modello in scala ridotta del vecchio laboratorio van de Graaff in Corso Italia, un pannello retroilluminato per mostrare il principio di funzionamento di un acceleratore elettrostatico e una serie di poster. A questo materiale si spera di poter aggiungere nei prossimi mesi, per iniziativa del Centro Siciliano di Fisica Nucleare, anche l'esposizione "in vetrina" della vecchia macchina. La Mostra sara' presentata ai colleghi e agli studenti interessati attraverso una lezione storico-didattica, Giovedi 28 alle ore 12, presso l'Aula E (primo piano) del nostro Dipartimento.
Date: From 2004-10-28 09:00:00 to 2004-10-29 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Workshop FIRB - "Sistemi Miniaturizzati per Elettronica e Fotonica"
Abstract/Calendar
Giovedì 28 Ottobre 

9.00  Orazio Svelto: Apertura dei lavori

Chairman: Luca Selmi
9.30	  Enrico Sangiorgi: Descrizione generale delle attività del WP2

Chairman: Enrico Sangiorgi
10.00  Attività 1: Luca Selmi (Univ. Udine): "Affidabilità di ossidi sottili." 
10.30  Attività 2: Alberto Carnera (MATIS-INFM & INFM-PD): "Interazione di difetti ed 
	  impurezze in silicio cristallino."

11.00 - 11.30	Coffee break

11.30  Attività 2: Sandro Solmi (CNR_IMM-BO): "Simulazione del processo di diffusione 
	  dell'arsenico impiantato a bassa energia in Si."
12.00  Attività 3: Vittorio Privitera (CNR-IMM_CT): "Integrazione del processo di laser 
	  annealing nella tecnologia MOS"
12.30  Attività 4: Marco Fanciulli  (INFM-MDM): "Strati dielettrici innovativi." 

13.00 - 14.30	Pranzo

Chairman: Emanuele Rimini
14.30  Salvo Lombardo: Descrizione generale delle attività del WP1

Chairman: Corrado Spinella
15.00  Salvo Lombardo: "Memorie a nanocristalli: Intro e dispositivi." 
15.30  Rosaria Puglisi: "Memorie a nanocristalli: materiali." 
16.00  Giuseppe Iannaccone: "Memorie a nanocristalli: modelling."

16.30 - 17.00	Coffee break

Chairman: Marco Fanciulli
17.00  Francesco Priolo (MATIS-INFM): Descrizione generale dell'attività del WP3

Chairman: Francesco Priolo
17.30  Attività 2: Lorenzo Pavesi (INFM-TN): "Cristalli Fotonici con Silicio Macroporoso"
18.00  Attività 2:  Antonino La Magna (CNR-IMM): "Simulazione delle Proprietà di Guida di 
Cristalli Fotonici." 
18.15 Attività 2:  Sebania Libertino (CNR-IMM): "Modulatore elettro-ottico scalabile 
integrato in silicio."


Venerdì 29 Ottobre 

Chairman: Francesco Priolo
9.00  Attività 1: Fabio Iacona (CNR-IMM):"Emissione di luce da nanostrutture di silicio." 
9.30  Attività 1:  Domenico Pacifici (MATIS-INFM): "Interazione fra nanocluster di silicio e 
         terre rare."

Chairman: Florestano Evangelisti
10.00  Giancarlo Righini: Descrizione generale delle attività del WP4

Chairman: Giancarlo Righini
10.20  Stefano Taccheo (IFN-MI): "Amplificatori in guide di vetro fosfato."
10.40 Roberto Osellame (IFN-MI): "Scrittura di guide attive e passive in vetri mediante impulsi laser a fs."

11.00 - 11.30   Coffee break

11.30  Carlo Liberale (UniPV): "Fabbricazione di strutture diffrattive in testa di fibra." 
11.45  Maurizio Ferrari (IFN Trento, IFAC): "Guide ottiche attive prodotte per sol-gel e sputtering RF." 
12.05 	Massimo Brenci (IFAC): "Guide ottiche attive e fotorifrattive prodotte per scambio ionico in vetri silicati."
12.25 	Daniel Milanese (PoliTO): "Guide ottiche attive e fotorifrattive prodotte per fusione." 
12.35 	Gualtiero Nunzi Conti (IFAC):  "Microlaser in risonatori sferici in vetri attivi."
12.50 	Paolo Minzioni (UniPV): "Riduzione di fotorifrattivita' in niobato di litio mediante drogaggio Afnio."
13.10 	Marco Marangoni (IFN-MI): "Reverse proton exchange in tantalato di litio." 

13.30 - 14.40   Pranzo

Chairman: Giancarlo Righini
14.40 Carlo Liberale (UniPV) e Marco Marangoni (IFN-MI): "Convertitore di lunghezza d'onda a niobato di litio." 

Chairman: Roberta Ramponi
15.00  Vittorio Degiorgio: Descrizione generale delle attività del WP5

Chairman: Vittorio Degiorgio
15.10 Claudio Andreani (UNIPV): "Teoria delle guide d'onda fotoniche e dei processi 
nonlineari." 
15.35 Maddalena Patrini (UNIPV): "Spettroscopia lineare e nonlineare di guide d'onda 
fotoniche."
16.00  S. Longhi (IFN-MI): "Modellizzazione e realizzazione di strutture a cristallo fotonico 
1D e 2D." 
16.25  Maurizio Ferrari (IFN - IFAC): "Strutture PBG ottenute per via sol-gel." 


16.45  Conclusioni

Date: From 2004-10-21 15:30:00 to 2004-10-21 16:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Hartmut Sadrozinski
Santa Cruz Institute for Particle Physics (SCIPP) USA
Proton Computed Tomography
Abstract/Calendar
Proton radiation therapy is one of the most precise forms of non-invasive cancer therapy. A proton computer tomography (PCT) system based on single-particle tracking can provide electron density maps for proton treatment planning and dose verification that are more accurate and at least as dose-efficient as electron density maps obtained with x-ray CT.
Date: From 2004-10-20 16:00:00 to 2004-10-20 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Cristiane Aragao
Universita' di San Paolo Brasil
Una rinormalizzazione alternativa del potenziale efficace nei metodi variazionali e nello sviluppo in loop.

Date: From 2004-10-19 16:00:00 to 2004-10-19 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Andrea Giansanti
Dipartimento di Fisica, Roma la Sapienza Italy
Co-expression of statistically over-represented peptides in proteomes: a key to phylogeny?
Abstract/Calendar
It is proposed that the co-expression of statistically significant motifs among the sequences of a proteome is a phylogenetic trait. From the co-expression matrix of such motifs in a group of prokaryotic proteomes a suitable definition of a phylogenetic distance is introduced and the corresponding distance matrix between proteomes is constructed. From the distance matrix a phylogenetic tree is inferred, following a standard procedure. It compares well with a reference tree, deduced from a distance matrix obtained from the alignment of ribosomal RNA sequences. Our results are consistent with the hypothesis that biological evolution manifests itself with a modulation of basic correlations between shared peptides of short length, present in protein sequences. Moreover, the simple procedure we propose reconfirms that it is possible, sampling entire proteomes, to average the effects of lateral gene transfer and infer reasonable phylogenies.
Date: From 2004-10-19 11:00:00 to 2004-10-19 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula D
Dr. Chudoba Jiri
Institute of Physics of the Academy of Sciences of the Czech Republic Czech Republic
Grid Computing Facilities in Prague
Abstract/Calendar
A short survey of grid facilities in the Czech republic will be given with an emphasis on their usage in High Energy Physics. Two different computing farms (GOLIAS and SKURUT) were used in ATLAS and ALICE Data Challenges and two different middleware implementations were deployed: AliEn middleware was used for ALICE jobs distribution while ATLAS used LCG2 middleware. Both products were installed on the GOLIAS farm and we found no bad interference between them. Some technical aspects of local batch system configuration will be shown together with discussion of pros and cons of the used setup. GILDA (Grid Infn Laboratory for Dissemination Activities) is installed on SKURUT farm for test and training activities.
Date: From 2004-10-15 18:30:00 to 2004-10-27 18:00:00
Location: Scuola Superiore di Catania, Via S. Paolo, 73, Catania, Aula Bellini
Professor Emeritus N. H. March
Oxford University, Oxford UK
Density Functional Theory of atoms, molecules and condensed matter
Abstract/Calendar
15/10 (18:30-19:30) Matter waves and mechanics of electrons.
18/10 (17:00-18:00) Position-momentum (phase) space quantization and many-electron systems.
22/10 (17:00-18:00) Theorems of density functional theory, with examples.
25/10 (17:00-18:00) Irreducible many-electron information: the exchange-correlation potential.
29/10 (17:00-18:00) Future directions, particularly Special Relativity.

Date: From 2004-10-15 11:15:00 to 2004-10-15 12:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Giuseppe Lo Re
CNAF, Bologna Italy
Gestione dei dati e calcolo distribuito nei futuri esperimenti al Large Hadron Collider del CERN
Abstract/Calendar
Saranno presentate e discusse le problematiche relative alla gestione di grandi moli di dati (reali e simulati) previsti negli esperimenti da effettuare nel prossimo futuro presso il Lrge Hadron Collider del CERN.
Date: From 2004-10-14 11:30:00 to 2004-10-14 12:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Patrizia Tosi
Istituto Nazionale di Geofisica e Vulcanologia, Roma Italy
Combined correlation integral and spatio-temporal correlations among earthquakes
Abstract/Calendar
Scale invariant properties of seismicity in time, space and energy argue for the presence of complex triggering mechanisms where, like a cascade process, each event produces aftershocks. We propose a novel method of data analysis that, based on the space-time combined generalization of the correlation integral leads to a self-consistent visualization and analysis of both spatial and temporal correlations. When analyzing global seismicity we discovered a universal relation linking the spatial Influence Length of a given earthquake to the time elapsed from the event itself. Following an event, time correlations (i.e. causality effects) exist in a region that shrinks over time. A different process is acting in the short-range where events are randomly set in space, evidencing a sub-diffusive growth of the seismogenic zone.
Date: From 2004-10-13 16:00:00 to 2004-10-13 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Y. K. Gambhir
Indian Institute of Technology (IIT), Bombay India
Microscopic Description of Recently Measured Mass and Charge Changing Cross Sections Using RIB's

Date: From 2004-10-08 15:00:00 to 2004-10-08 16:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula E
Andrea Canino
Caratterizzazione ottica e strutturale di nanotubi di carbonio

Date: From 2004-10-07 11:30:00 to 2004-10-07 12:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula A
Prof. Marco Rossi
Università Roma La Sapienza Italy
Nanostrutture di Carbonio: sintesi, caratterizzazioni e applicazioni.

Date: From 2004-09-26 09:00:00 to 2004-09-28 19:50:00
Location: Santa Tecla Palace, Acireale, Catania,
First CADRES Workshop

Date: From 2004-09-17 10:00:00 to 2004-09-17 11:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula A
Dr. Nathan P. Mellot
National Science Foundation Fellow, Università di Padova Italy
Nanostructured, Surface Functional, Thin Films for Self-Cleaning
Abstract/Calendar
Coatings and thin films are an integral part of many advanced material-related technologies. A good example is the emerging technology of nanostructured, surface functional, photocatalytic self-cleaning films on glasses. In this seminar I will summarize the various related projects ongoing in our laboratory including; (1) processing of self-cleaning films(sol-gel), (2) bulk and surface characterization of commercial and laboratory based self-cleaning films, and (3)chemical durability of self-cleaning films.
Date: From 2004-07-27 09:30:00 to 2004-07-27 10:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula I
Prof. M. B. Chatterjee
Saha Institute of Nuclear Physics, Kolkata India
Low-Energy Heavy Ion Reaction Studies with simulations

Date: From 2004-07-21 10:00:00 to 2004-07-21 11:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula B
Prof. Matteo Galli
Università di Pavia Italy
Optical properties of Photonic Crystal structures based on silicon

Date: From 2004-07-20 09:00:00 to 2004-07-26 19:00:00
Location: Erice, Sicily,
31st Workshop of the International School of Solid State Physics on Complexity, Metastability and Nonextensivity
Abstract/Calendar
Ettore Majorana Foundation and Centre for Scientific Culture
Date: From 2004-07-15 11:30:00 to 2004-07-15 12:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula E
Professor Emeritus E. G. D. Cohen (2004 Boltzmann Medal)
The Rockefeller University, New York USA
Superstatistical generalization of a fluctuation theorem
Abstract/Calendar
The conventional statistics and Fluctuation Theorem for the work done on a Brownian particle in a fluid at constant temperature is first discussed. The generalization of this Fluctuation Theorem to the case of a slowly varying temperature profile of the fluid leads to new, what are called, Superstatistics and new Fluctuation Theorems, which are discussed for a few of temperature profiles. Tsallis statistics turns out to correspond to a particular temperature profile. The possible relevance of Superstatistics for micro/nano structure design is pointed out.
Date: From 2004-07-14 16:00:00 to 2004-07-14 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Hui Hua
University of Beijing China
Studying high spin states wiht the Chico detector

Date: From 2004-07-14 09:00:00 to 2004-07-16 19:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Sala GRID
Dr. Roberto Barbera (a cura di)
Dipartimento di Fisica e Astronomia, Università di Catania, and INFN, Sez. Catania Italy
INFN-Grid: EGEE - NA4 Open Meeting

Date: From 2004-07-12 16:00:00 to 2004-07-12 19:00:00
Location: Università di Catania, Palazzo Centrale, Piazza Università, Aula Magna
Il ruolo del fisico sanitario nella sanità del Duemila.
Convegno in occasione della conclusione del primo ciclo della Scuola di Specializzazione in Fisica Sanitaria - Indirizzo Fisica Me

Date: From 2004-07-07 09:30:00 to 2004-07-07 10:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula A
Dr. Alberto Piro
Dipartimento di Fisica e Astronomia, Università di Catania Italy
Simulazioni RBS-channeling tramite FLUX code

Date: From 2004-07-05 11:00:00 to 2004-07-05 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula E
Prof. G. C. Castellani
Dipartimento di Fisica, Università di Bologna Italy
Ruolo della connetività nello sviluppo della memoria e selettività in network BCM e immunitari
Abstract/Calendar
Il denominatore comune di questi sistemi biologici e anche di altri, sembra risiedere nella loro organizzazione in "network complessi"che potrebbe essere alla base di proprieta' emergenti quali la memoria e l'apprendimento. La modularita' di questa organizzazione e' stata riscontrata ad esempio nel sistema nervoso di alcuni animali e sembra essere conservata durante l'evoluzione. Relativamente alle reti neurali si discutera' un approccio diretto ai neuroni cosiddetti BCM (Bienenstock, Cooper, Munro) e sulle loro proprieta' di stabilita' e sincronizzazione (spiking neuron). In particolare ci si intende focalizzare sulle proprieta' di: capacita'di memoria, di selettivita' e sul dilemma cosiddetto di memoria/selettivita' e sulle sue variazioni in funzione del grado di connettivita'. Sara' inoltre discussa una estensione biofisica del modello BCM che consente l'individuazione di osservabili biologiche effettivamente misurabili. Le reti immunitarie saranno discusse nell'ambito della teoria del network cellule-citochine utilizzando un modello derivato dalle equazioni di Lotka-Volterra. Le somiglianze dei due modelli saranno affrontate sia da un punto di vista fisico-matematico sulla base della struttura dei rispettivi piani delle fasi che sulla base di molecole biologiche che svolgono un ruolo chiave nell'induzione della memoria nei due sistemi. Infine sara' affrontata una possibile estensione del formalismo dei network complessi alle reti geniche.
Date: From 2004-07-02 11:00:00 to 2004-07-02 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula I
Dr. Irene Giardina
Centro SMC - INFM, Dipartimento di Fisica, Università di Roma "La Sapienza" Italy
A topological perspective of the glass transition
Abstract/Calendar
The energy landscape approach to supercooled liquids has gained much attention in the recent years. Its main aim is to connect the topological features of the potential energy surface to the dynamical behaviour of the system. While at low temperature the equilibrium landscape is dominated by minima, it turns out that at higher temperatures the saddles (i.e. stationary points with unstable modes) are the relevant topological objects. In this context the dynamical slowing down occurring at the Mode Coupling temperature can be associated to a change in the topology of the equilibrium landscape. In this seminar I will revise our main results in this field, I will show how and to what extent a topological analysis of glassy systems can be pursued, and what are the main open questions to be addressed in the future.
Date: From 2004-07-02 09:30:00 to 2004-07-02 10:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula A
Dr. Vito Raineri
IMM-CNR, Catania Italy
Scanning probe microscopy: beyond surface imaging to the nanoworld access

Date: From 2004-06-30 09:00:00 to 2004-07-02 19:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64,
16th EuroMicro Conference on Real-Time Systems (ECRTS 04)
Abstract/Calendar
Organized by the Euromicro Technical Committee on Real-time Systems.
Date: From 2004-06-26 16:30:00 to 2004-06-26 17:30:00
Location: DMFCI, Via A. Doria, 6, Sala riunioni
Dr. P. Verrucchi
Dipartimento di Fisica, Università di Firenze Italy
Factorized ground state and field-driven entanglement switch in s=1/2 antiferromagnetic chains

Date: From 2004-06-24 15:30:00 to 2004-06-24 16:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula A
Dr. Saverio Bartalini
LENS, Firenze Italy
Realizzazione di una trappola magneto-ottica per il caricamento di una microtrappola sulla superficie di un atom chip

Date: From 2004-06-11 11:30:00 to 2004-06-11 12:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula A
Prof. Michael Stuke
Max-Planck-Institut Germany
Laser-induced creation of 3-dimensional structures: processing, processes and applications

Date: From 2004-06-08 17:30:00 to 2004-06-08 18:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. R. O. Jones
IFF, Forschungszentrum Jülich Germany
Carbon clusters and nanotubes - what can theory tell us about their structures?
Abstract/Calendar
Cagelike structures of C60 provided headlines in the 1980's, and 'nanotubes' continued this into the 1990's. However, few of the technological applications that were promised have been realized. I shall focus on the structures of carbon clusters and nanotubes, and I shall discuss the role that theory (particularly density functional calculations) can play in understanding their properties.
Date: From 2004-06-08 16:30:00 to 2004-06-08 17:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. I. A. Howard
Department of Physics, University of Antwerp Belgium
Toward an accurate determination of the exchange potential: an integral equation approach and its consequences

Date: From 2004-06-04 16:00:00 to 2004-06-04 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula L
Prof. Paul Stevenson
Rice University, Houston USA
Hydrodynamics of the vacuum: empty vacuum versus Higgs vacuum

Date: From 2004-06-04 12:00:00 to 2004-06-04 13:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula B
Dr. Tomas Diaz de la Rubia
Lawrence Livermore National Laboratory, California USA
Materials Science Research at Lawrence Livermore National Laboratory

Date: From 2004-06-03 15:00:00 to 2004-06-03 16:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Riccardo De Bastiani
Soluzioni solide sovrassature di Si-Ga: stabilità ed effetto del codrogaggio con B

Date: From 2004-05-31 09:00:00 to 2004-06-04 19:00:00
Location: President Park Hotel, Catania,
CRIS 2004 - Cosmic Ray International Seminar on GZK and Surroundings

Date: From 2004-05-24 09:00:00 to 2004-05-25 19:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Dr. Roberto Barbera (a cura di)
Dipartimento di Fisica e Astronomia, Università di Catania, and INFN, Sez. Catania Italy
EGEE: Genius/Gilda Tutorial

Date: From 2004-05-21 11:00:00 to 2004-05-25 18:00:00
Location: Scuola "G. Capponi", Via De Caro 85, Catania,
L'acqua intorno a noi. Mostra di esperimenti scientifici
Abstract/Calendar
Orari: 11-13, 16-18.
Date: From 2004-05-20 15:00:00 to 2004-05-20 16:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula B
Paolo Badalà
Deattivazione del B in Si tramite irraggiamento ionico

Date: From 2004-05-05 15:30:00 to 2004-05-05 16:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Mario Valvo
Deposizione MBE di isole di Ge su substrati di Si(100)

Date: From 2004-05-05 15:00:00 to 2004-05-05 16:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Giuseppe Pulvirenti
Ruolo delle cavità indotte da impiantazione ionica di He sul rilassamento di eterostrutture MBE Si1-xGex/Si(100)

Date: From 2004-04-23 15:30:00 to 2004-04-23 16:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula C
Egle Tomasi
C.E.A., Saclay France
Fattore di forma del nucleone: Risultati recenti e prospettive

Date: From 2004-04-22 15:30:00 to 2004-04-22 16:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Bennett Link
Osservatorio di Arcetri, Italy, and University of Montana USA
The exotic interior of a neutron star
Abstract/Calendar
A neutron star is thought to consist of about a solar mass of superfluid neutrons and superconducting protons compressed by gravity to supranuclear densities into a volume about the size of Mount Etna. I will review the current understanding of the extraordinary physical conditions that prevail in the neutron star interior. After brief mention of where neutron stars come from, I will discuss why these stars are made mostly of neutrons, their structure, the superconducting interior and the dynamics of the superfluid.
Date: From 2004-04-07 17:30:00 to 2004-04-07 18:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Francesco Riggi
Dipartimento di Fisica e Astronomia, Università di Catania, and INFN, Sez. Catania Italy
La proposta di un osservatorio didattico per i raggi cosmici nel territorio etneo
Abstract/Calendar
Lo studio dei raggi cosmici permette un approccio relativamente semplice al campo della fisica sperimentale delle alte energie. Ad alcuni aspetti di questo studio, che presenta risvolti didattici ma al contempo anche di ricerca interdisciplinare, possono contribuire non solo le Istituzioni tradizionalmente sede di queste attivita` (Universita`, INFN, Enti di Ricerca), ma anche realta` esterne (Scuole superiori, Enti e Associazioni in area locale). Progetti didattici e di ricerca di questo genere sono stati gia` avviati in tempi molto recenti in vari Paesi del mondo. In questo seminario saranno presentati e discussi alcuni aspetti della fisica dei raggi cosmici che possono coinvolgere possibili collaborazioni tra il Dipartimento di Fisica e Astronomia, l'INFN e altre realta` locali nell'area etnea. Saranno inoltre presentati alcuni risultati preliminari ottenuti con prototipi di possibili apparati di rivelazione da utilizzare in questo contesto.
Date: From 2004-04-07 15:00:00 to 2004-04-07 16:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula L
Elena Bruno
Boron-Interstitial-Clusters in crystalline Silicon: lattice strain and average composition

Date: From 2004-03-15 09:00:00 to 2004-03-19 19:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Informatica
CLiC: Corsi Linux Catania - Corso base

Date: From 2004-02-18 12:30:00 to 2004-02-20 16:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula E
Dottorato di ricerca in scienza dei materiali: Esami finali
Abstract/Calendar
18/02/2004, ore 12:30-19:30 (con break) Dr.i: Auditore, Bottaro, Dal Toè, Mecheri, Viticoli
20/02/2004, ore 08:30-16:30 (con break) Dr.i: Argiolas, Businaro, Crupi, Irrera, Padovani
Date: From 2004-02-13 09:30:00 to 2004-02-19 13:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula E
Dottorato di ricerca in fisica: Esami finali
Abstract/Calendar
13/02/2004, ore 09:30 Dr.i: Distefano, Leonardi, Palazzo
19/02/2004, ore 09:30 Dr.i: Pacifici, Sciuto
Date: From 2004-02-09 17:30:00 to 2004-02-17 18:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula E
Prof. M. J. Aziz
Gordon McKay Professor of Materials Science, Harvard University USA
Abstract/Calendar
09/02/2004, ore 17:30 (90 min) Materials Science of Nanoscale Structures
13/02/2004, ore 12.00 (90 min) Diffusion, crystallization and viscous flow in stressed materials
16/02/2004, ore 12.00 (90 min) Nanoscale morphology control using ion beams
17/02/2004, ore 17:00 (90 min) Nonequilibrium interface kinetics in rapid solidification
Date: From 2004-01-16 20:00:00 to 2004-01-16 21:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Prof. Marco Bersanelli
Università di Milano Italy
Solo lo stupore conosce. L'Avventura della Ricerca Scientifica

Date: From 2003-12-17 16:00:00 to 2003-12-17 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula M
Prof. Giuliano Schiffrer
Dipartimento di Fisica e Astronomia, Università di Ferrara Italy
Acustica in forma "relativistica"
Abstract/Calendar
Dopo una breve introduzione sui fondamenti dell'Acustica lineare, si espone una formulazione quadri-dimensionale della corrispondente teoria. Si sottolineano la analogie e le differenze con la teoria elettromagnetica e si espongono brevemente alcune applicazioni.
Date: From 2003-12-16 16:30:00 to 2003-12-16 17:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula I
Johan Helgesson
School of Technology and Society, Malmö University Sweden
Intensity interferometry and emission chronology in neutron rich systems. A theoretical approach
Abstract/Calendar
The space-time extent of particle emitting sources can be determined by using the technique of intensity interferometry, where the correlations between coincident particles are used. Recent developments, such as chronology of non-identical particles, as well as imaging techniques, will be discussed on a theoretical level, and compared to traditional approaches using model sources. In particular, application to recent experimental correlation data obtained for the reaction E/A = 61 MeV 36Ar + 112-124Sn will be discussed.
Date: From 2003-12-15 15:00:00 to 2003-12-17 13:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64,
Meeting FI31: Urti ad alta energia tra ioni pesanti
Abstract/Calendar
Lunedì 15:
15:00 - 17:00 R. Baier: "Jet quenching and gluon radiation"
        17:30 V. Greco: "Parton coalescence at RHIC"
Martedì 16:
        9:30  F. Becattini: "Modelli di equilibrio statistico e termico"
11:00 - 11:30 Break
        15:00 A. Keranen: "Canonical hadron gas ensemble with excluded volume corrections"
         16:00 M. Martini, A. Beraudo: "Mean field at finite temperature and symmetry breaking"
17:00 - 17:30 Break
        17:30 Dai Mei Zhou: "Relativistic Transport Approach to Heavy Ion collisions"
Mercoledì 17:
         9:30 P. Castorina: "Gluon Condensation in nuclear matter and deconfinemet critical density"
        11:30 Discussione generale
        13:00 Fine del meeting.

Date: From 2003-12-10 16:00:00 to 2003-12-10 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Alfio Borzì
Karl-Franzens-Universität, Graz Austria
Two examples of optimal control problems in physics: Quantum nanostructures and a Ginzburg-Landau model

Date: From 2003-12-05 12:00:00 to 2003-12-05 13:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, stanza 327
Serguey Zaporozhets
JINR, Dubna Russia
Particle identification in ALICE: Inner Tracking System

Date: From 2003-12-03 19:00:00 to 2003-12-03 20:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, stanza 340
Fedor Guber
HADES experiment - present status

Date: From 2003-12-03 19:00:00 to 2003-12-03 20:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, stanza 340
Marina Golubeva
Pt analysis of p-A 400Gecc data in comparison with S-U and Pb-Pb data

Date: From 2003-12-02 12:30:00 to 2003-12-02 13:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, stanza 327
Petra Riedler
CERN, Geneva Switzerland
Radiation damage in silicon detectors

Date: From 2003-12-01 10:30:00 to 2003-12-05 10:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Alan A. Watson
AUGER Experiment, Spokesman; Leeds University UK
Extensive Air Showers and Ultra High Energy Cosmic Ray Physics
Abstract/Calendar
  • 1/12, 10:30
  • 1/12, 15:00
  • 2/12, 10:00
  • 3/12, 15:00
  • 4/12, 15:00
  • 5/12, 09:00

Date: From 2003-11-27 10:30:00 to 2003-11-27 11:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Adam Jacholkowski
CERN, Geneva Switzerland
Instruments and Methods of the the CERN Heavy Ion Experiment NA57

Date: From 2003-11-26 15:30:00 to 2003-11-26 16:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Adam Jacholkowski
CERN, Geneva Switzerland
Strangeness enhancement in heavy ion collisions - The NA57 CERN experiment

Date: From 2003-11-06 17:00:00 to 2003-11-06 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. F. T. Arecchi
Dipartimento di Fisica, Università di Firenze, and Istituto Nazionale di Ottica Applicata Italy
Chaotic neuron dynamics, synchronization, and feature binding: quantum aspects
Abstract/Calendar
The central issue of cognitive science is how a large collection of coupled neurons combines external data with internal memories into new coherent patterns of meaning. Such a process is called feature binding, insofar as the coherent patterns combine together features which are extracted separately by specialized cells, but which do not make sense as isolated items. A powerful conjecture, with experimental confirmation, is that feature binding in perceptual tasks implies the mutual synchronization of axonal spike trains in neurons. Based on recent laboratory investigations of homoclinic chaotic systems, and how they mutually synchronize by weak coupling, a novel conjecture on the dynamics of the single neuron is formulated. Homoclinic chaos implies the recurrent return of the dynamical trajectory to a saddle focus, in whose neighbourhood the response to an external perturbation is very high and hence it is very easy to lock to an external stimulus. Thus homoclinic chaos appears as the easiest way to encode information in time by a code consisting of trains of equal spikes. A time code based on a synchronized sequence of spikes requires a decision time tau sufficiently longer than the minimal interspike separation t1 , so that the total number of different set elements is related in some way to the size tau/t1. In a sensory layer of the brain cortex an external stimulus localized at some input spreads over a large assembly of coupled neurons building up a collective state univocally corresponding to the stimulus, thus synchronization of trains of different individual neurons is the basis of a coherent perception. The percept space can be given a metric structure by introducing a distance measure, so that, at least in principle, the set of different perception can be classified. The distance in percept space is conjugate of the duration time in the sense that an uncertainty relation in percept space is associated with time limited perceptions. This coding of different percepts by synchronized trains of spikes entails a fundamental quantum limitation. If the synchronized train is truncated at a given time, then the corresponding identification of a percept P is not fully accomplished, but it carries an uncertainty cloud around P. As the two uncertainty clouds around two distinct percepts overlap, interference occurs; this is a quantum behavior. Thus the quantum formalism is not exclusively limited to microscopic phenomena, but here it is conjectured to be the appropriate description of truncated perceptions. The quantum feature here explored is uniquely tied up to the coding and reading operations which take place in passing from external signals on the sensor transducers to complete perceptions driving an action; it is not related to Planck's h-bar but to the details of the perceptual chain.
Date: From 2003-10-31 11:00:00 to 2003-10-31 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula A
Dr. Stephane Monteil
Université "Blaise Pascal", Clermont Ferrand France
Detector for the future Linear Collider
Abstract/Calendar
After brief look at the machine project and short overview of the Physics cases, the guidelines of the design of the calorimetric system will be presented with special emphasys given to the jet measurements. The Electromagnetic Calorimeter project as supported by the CALICE Collaboration will be described together with some reconstruction algorithms deserving the energy flow measurements.
Date: From 2003-10-30 11:30:00 to 2003-10-30 12:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Hermann Rothard
Centre Interdisciplinaire de Recherche Ions Lasers CIRIL-GANIL, Caen France
Electron Ejection by Heavy Particles as Precursor of Radiation Effects in inert and living Matter
Abstract/Calendar
Electron ejection from target atoms is one of the basic processes when ionizing radiation interacts with matter. The primary electrons and their subsequent secondary interactions lead to the deposition of energy around the ion trajectory. The detailed knowledge of the structure of these ion tracks is a key issue for our understanding of radiation effects in condensed matter, an important example being calculations of the RBE of heavy particles, where doubly differential electron ejection cross sections are a key input parameter. We first discuss Primary ionisation (binary encounter and soft electron emission, higher order effects related to strong perturbation and multiple collision sequences Fermi shuttle) common to single atoms (gas targets) and condensed matter. Special emphasis will then be given to discuss effects in condensed matter (electron transport and multiple scattering effects, jet-like structures, wake effects due to collective excitation of plasmons and emission of shock wave electrons).
Date: From 2003-10-28 18:30:00 to 2003-10-28 19:30:00
Location: Monastero dei Benedettini, Auditorium
Prof. Renato Pucci, Prof. Nino Recupero
Università di Catania, Università di Milano Italy
Presentazione del libro "Prima che l'amore finisca", di Raniero La Valle
Abstract/Calendar
Gli ultimi avvenimenti della nostra storia sembrano aver ucciso ogni speranza in una società più umana per tutte le donne e gli uomini del pianeta Terra. Eppure ci sono donne e uomini che in maniera non meno concreta fanno intravedere come reale un diverso futuro. La loro testimonianza costituisce una memoria pericolosa per gli equilibri del presente. Essa può continuare a operare non attraverso la nostalgia o nel rimpianto, ma nel progetto e nella prassi. Il libro di Raniero La Valle ci sembra un testo che non soltanto apre il cuore, ma soprattutto impegna a pensare e agire. [Presenteranno Antonio Pioletti e Pino Ruggieri. Sarà presente l'Autore.]
Date: From 2003-10-24 15:30:00 to 2003-10-24 16:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula I
Ing. Gino Sorbello
Dipartimento di Ingegneria Informatica e delle Telecomunicazioni (DIIT), Università di Catania Italy
Dispositivi attivi ad Er:Yb in vetro operanti ad 1.5 micron per comunicazioni ottiche
Abstract/Calendar
Nelle moderne reti ottiche la realizzazione di dispositivi attivi in ottica integrata con tecnologie planari riveste un notevole interesse per la riduzione delle dimensioni e dei costi. Verranno presi in esame amplificatori e guide a canale realizzati su substrati in vetro drogato con erbio ed itterbio. Dopo qualche cenno alla fisica del sistema Er:Yb in vetro fosfato ed alla modellistica elettromagnetica necessaria per il progetto di tali dispositivi, si approfondirà la tecnica di fabbricazione per scambio ionico e si esamineranno le prestazioni dei prototipi dei laser e degli amplificatori ottici realizzati.
Date: From 2003-10-15 09:00:00 to 2003-10-17 19:00:00
Location: Hotel Excelsior, Catania,
Dr. Roberto Barbera (a cura di)
Dipartimento di Fisica e Astronomia, Università di Catania, and INFN, Sez. Catania Italy
Third INFN-Grid Workshop

Date: From 2003-10-13 17:00:00 to 2003-10-13 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Professor Emeritus N. H. March
Department of Physics, University of Antwerp, Belgium, and Oxford University, Oxford UK
Density functional theory: `likely' next generation of functionals

Date: From 2003-10-06 09:00:00 to 2003-10-08 19:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
The structure of many-body systems at different scales
Festschrift on the occasion of Marcello Baldo's 60th birthday
Abstract/Calendar
See the pictures (courtesy of E. Lanza)
Date: From 2003-09-21 09:00:00 to 2003-09-28 19:00:00
Second Sardinian International Conference on News and Expectations in Thermostatistics (NEXT 2003). Villasimius, Cagliari, Italy.

Date: From 2003-09-17 16:00:00 to 2003-09-17 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. C. Tsallis
Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro Brasil
Meccanica statistica non estensiva: risultati recenti
Abstract/Calendar
La meccanica statistica non estensiva e la termodinamica associata focalizzano sistemi anomali e complessi: tipicamente quelli che violano l'ipotesi di ergodicità nella corrispondente dinamica microscopica. Nel talk verrà esposta una breve introduzione della teoria e saranno illustrati i risultati e le applicazioni più recenti.
Date: From 2003-09-15 11:00:00 to 2003-09-15 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. R. Ghetti
Physics Department, University of Lund Sweden
Interferometria con nucleoni: una tecnica sperimentale per investigare la materia nucleare eccitata

Date: From 2003-09-04 16:00:00 to 2003-09-04 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Fulvio Frisone
Centro Siciliano di Fisica Nucleare e Struttura della Materia, Catania Italy
Interazioni dentro i reticoli in funzione delle condizioni termodinamiche e studio dell'effetto tunneling
Abstract/Calendar
Si presentano i risultati teorici ottenuti analizzando l'interazione fra deutoni, catalizzata dai plasmoni dei reticoli con struttura CFC (cubica a facce centrate) o EC, a temperatura variabile. L'eventuale amplificazione dell'effetto tunneling, conseguente all'aumento della temperatura e della densità di impurezze, apre la strada all'’ipotesi che variazioni delle condizioni termodinamiche producano nel reticolo delle dislocazioni, cui seguono deformazioni e microcrack che potrebbero essere capaci di concentrare nelle loro vicinanze una frazione rilevante di deutoni presenti nel metallo.
Date: From 2003-09-03 17:00:00 to 2003-09-03 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Natascia Andrenacci
Institut de Physique, Université de Neuchâtel Switzerland
Evolution from BCS superconductivity to Bose-Einstein condensation
Abstract/Calendar
We consider the current correlation function for a three-dimensional system of fermions embedded in a homogeneous background and mutually interacting via an attractive short-range potential, below the (superconducting) critical temperature. Diagrammatic contributions in the broken-symmetry phase are identified, that yield for the (wave-vector and frequency dependent) current correlation function the fermionic BCS approximation in the weak-coupling limit and the bosonic Bogoliubov approximation in the strong-coupling limit (whereby composite bosons form as bound-fermion pairs). The temperature dependence of the superfluid density (from the BCS exponential behavior at weak coupling to a power-law behavior at strong coupling) and the form of the Pippard-like kernel at zero temperature are explicitly obtained from weak to strong coupling. Quite generally, it is shown that the Pippard-like kernel is the sum of a local (London-like) term and of a nonlocal component, the local term being dominant in the strong-coupling limit and the nonlocal component in the BCS (weak-coupling) limit. It is also shown that the range of the nonlocal component is determined by the coherence length measuring the spatial correlations of the amplitude of the order parameter, namely, the correlations among different Cooper pairs (or composite bosons), rather than between the fermionic partners of a given pair. In addition, a prescription is provided for mapping the fermionic onto the bosonic diagrammatic theories in the broken-symmetry phase, thus complementing what already done in the normal phase.
Date: From 2003-07-08 11:00:00 to 2003-07-08 12:00:00
Location: Osservatorio Astrofisico, Via. A. Doria, 6, Aula Ovest
Dr. Martin O'Mullane
JET - Joint Undertaking, Culham, Oxfordshire UK
Collisional-radiative theory: a general approach to modelling emission from plasmas
Abstract/Calendar
Quantitative spectral analysis of laboratory and astrophysical plasmas requires atomic data - collision cross-sections, oscillator strengths etc. The connection between fundamental data and the derived data used in analysis, such as spectral line emissivities, is established through excited population models and so-called 'collisional-radiative' theory. In particular, the generalized collisional-radiative model smoothly connects the low density and high density extremes of ion populations in plasmas and allows effective description from quasi-static through to highly dynamic environments.
The method is reviewed and attention drawn to some current trends in fundamental data production for its support. Examples are given of how the method is tuning to analysis of selected spectral observations. Then the integration of collisional-radiative data into general plasma transport modelling and the linkage to modern global optimizing fitting of comprehensive measurements are described.
Date: 2003-07-07 11:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula E
Prof. Hugh Summers
University of Strathclyde, Glasgow UK
Recent directions in spectral analysis of laboratory and astrophysical plasmas
Abstract/Calendar
Atomic physics and spectroscopy are of central importance in analysing such disparate plasmas as supernovae remnants and lithographic light sources. The talk presents some recent trends in atomic modelling and connects them with the observations and experiments in fusion and astrophysics which motivated them. It seeks to draw attention to interesting points of similarity and difference. Illustrations from the fusion domain are drawn from machines such as JET and ASDEX, and include divertor, beam-penetrated and core plasma. In the astrophysics domain, illustrations, drawn from the SOHO and CHANDRA spacecraft, span from extreme ultraviolet observations of the solar upper atmosphere, through to soft x-rays from comet.
Date: From 2003-07-01 16:30:00 to 2003-07-01 17:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Domenico De Pasquale
Dipartimento di Fisica, Università di Messina, and INFN, Sez. Catania Italy
TRALIN: un sistema mobile di tomografia X di alta energia per applicazioni industriali e ai beni culturali
Abstract/Calendar
La crescente richiesta di metodiche di ispezione non distruttiva della configurazione interna di materiali e manufatti di notevole spessore e densità porta alla necessità di disporre di intense sorgenti di raggi X di alta energia e di sistemi di rivelazione in digitale ad elevata efficienza e risoluzione, oltre allo sviluppo di software specifico di ricostruzione di immagini in 3D, campi nei quali l'INFN è da sempre all'avanguardia. L'esperimento TRALIN, di cui si presenta il progetto e lo stadio di sviluppo attuale, si propone di realizzare il primo tomografo mobile ad alta energia italiano.
Date: From 2003-06-19 16:00:00 to 2003-06-19 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Antonio Trifirò and Marina Trimarchi
Dipartimento di Fisica, Università di Messina, and INFN, Sez. Catania Italy
Studio delle reazioni sequenziali fra ioni pesanti
Abstract/Calendar
Sono state studiate le correlazioni angolari fra le particelle leggere e i frammenti di reazione emessi in collisioni periferiche fra ioni pesanti ad energie di bombardamento non superiori a 20 MeV/A. Sono state analizzate le reazioni 16O+48Ti a 101 e 133 MeV e 16O+58 Ni a 96 e 132 MeV. Le molteplicità differenziali ottenute sono spiegate nell'ambito di un semplice modello che ipotizzando la sequenzialità del processo di emissione riproduce sia la componente evaporativa che quella di non equilibrio delle particelle leggere emesse (alpha e protoni). Inoltre, per i due sistemi, è stata dedotta la dipendenza dall'energia della polarizzazione del nucleo residuo.
Date: From 2003-06-16 16:00:00 to 2003-06-16 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula A
Prof. Maria Grazia Grimaldi
Dipartimento di Fisica e Astronomia, Università di Catania Italy
Presentazione del nuovo acceleratore a stato solido da 3.5 MV: potenzialità ed applicazioni

Date: From 2003-06-05 16:30:00 to 2003-06-05 17:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Marcello Buiatti
Dipartimento di Biologia animale e Genetica, Università di Firenze Italy
Rumore ed omeostasi nei sistemi viventi
Abstract/Calendar
Il seminario verterà sulla analisi della caratteristica peculiare dei sistemi viventi di essere capaci di utilizzare una parte di variabilità quasi-casuale per modificarsi in funzione stabilizzatrice ai fini dell'adattamento. Si partirà dallo studio delle componenti casuali e vincolate nella distribuzione delle basi (ATGC) nel DNA risalendo alle funzioni dei vincoli alla stocasticità. Saranno quindi descritte innanzitutto le limitazioni imposte dai metodi di riconoscimento fra molecole necessari per la vita e per la organizzazione delle sue strutture partendo dalla organizzazione cromosomica per giungere alla trascrizione , processamento e replicazione del DNA stesso. Verrà quindi discussa la importanza delle cosiddette strategie esplorative della vita a partire dalla scoperta delle sequenze ipervariabili del DNA. Le strategie esplorative verranno poi discusse con riferimento alla regolazione della trascrizione-traduzione, allo sviluppo ed organizzazione del cervello, alla variabilità delle molecole di difesa fra cui le immunoglobuline,alle strategie di reperimento di cibo ecc. A queste esigenze di variabilità e plasticità verranno poi opposte le strutture di rete facendo alcuni accenbni alla tematica dei "piccoli mondi" in particolare riferiti alle strutture del matabolismo. Il seminario terminerà con alcuni cenni di tipo epistemologico sule differenze fra Biologia modernna e biotecnologie da una parte, Biologia contemporanea dall'altra.
Date: From 2003-05-26 09:00:00 to 2003-05-28 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Informatica
Dr. Roberto Barbera (a cura di)
Dipartimento di Fisica e Astronomia, Università di Catania, and INFN, Sez. Catania Italy
Tutorial INFN-Grid/DataGrid
Abstract/Calendar
Nei giorni 26, 27 e 28 maggio si terra', presso i locali del Dipartimento di Fisica e Astronomia, un Tutorial INFN-Grid/DataGrid durante il quale sara' effettuata una serie di dimostrazioni pratiche (un vero e proprio "hands on") sull'uso di una griglia computazionale reale con applicazioni scientifiche multi/inter-disciplinari. Per la partecipazione al Tutorial non e' richiesta alcuna conoscenza propedeutica, ne' sul calcolo distribuito in generale ne' sulle griglie computazionali in particolare. Al fine di valutare in maniera precisa il numero dei partecipanti, anche i "locali" eventualmente interessati sono invitati a riempire il form di registrazione.
Date: From 2003-05-21 16:00:00 to 2003-05-21 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Paolo Grigolini
Department of Physics, University of North Texas, Denton, TX, USA, and CNR, Istituto di Biofisica, P Italy
Departure from Poisson statistics: a surprising source of memory and correlation
Abstract/Calendar
This seminar is devoted to discussing how to connect the Continuous Time Random Walk (CTRW) to the Generalized Master Equation (GME) formalism. The CTRW is a very natural way to describe recently discovered experimental processes such as the blinking quantum dot phenomena, where a walker abruptly jumps forth and back, from a light to a dark state, after extended sojourns in either of the two states. However, this experimental perspective leaves open the problem of how to derive the dynamics of a single quantum dot from a Hamiltonian picture based on the known physical laws. There is a general consensus that the Master Equation approach, in a generalized form, the Generalized Master Equation (GLE), compatible with the presence of strong memory effect, is the proper theoretical tool to address this ambitious problem. This is the reason why it would be convenient to express the CTRW in terms of the equivalent GME, if this latter equation existed. This is the reason why we discuss the problem of how to relate each CTRW to its own GME. We discuss first the case where the waiting time distributions are exponential, namely the case of Poisson statistics. We find that the equivalent GME, in this case, is the ordinary Markovian Master equation, with no memory. A departure from the Poisson condition yields striking effects: (a) An infinite memory, and consequently a dependence on initial condition, which is infinitely extended in time. (b) Aging effects that produce a deviation from ordinary statistical mechanics, under the form of a breakdown of the Onsager principle. We show that a GME equivalent to the CTRW exists and can be derived, in principle, in any condition, including the non-Poissonian case. However, this equivalence generates puzzling paradoxes such as how to conciliate the unpredictable nature of CTRW jumps and the infinite memory of the corresponding GME. All this suggests that the CTRW might become the most important theoretical tool to properly address some of the issues raised by non-ordinary statistical mechanics.
Date: From 2003-05-16 16:00:00 to 2003-05-16 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula B
Prof. Nathan Andrei
Rutgers University, N.Y. USA
Thermal conductivity of spin 1/2 chains

Date: From 2003-05-16 10:00:00 to 2003-05-16 12:00:00
Location: Università di Catania, Palazzo Centrale, Piazza Università, Aula Magna
Professor Emeritus N. H. March
Oxford University, Oxford UK
Quantum mechanics has accounted for a large part of physics and the whole of chemistry. True or false?
Abstract/Calendar
Lectio magistralis, given on receipt of the Honorary Degree in Physics by the University of Catania.
An assessment is first made of the way two valuable chemical concepts are explained by quantum mechanics. These are: (i) Bonds or fragments as building blocks of larger molecules and of solids. (ii) Electronegativity, to characterize the ionic contribution in chemical bonding. By focusing on some further specific topics, it is argued that both recent progress, and current needs, in theoretical chemistry ought to feed back fruitfully into physics. These topics embrace the superconducting cuprates, and superfluidity.
Lectio magistralis: text in English; testo in Italiano.
Date: From 2003-05-15 11:30:00 to 2003-05-15 13:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula A
Prof. Nathan Andrei
Rutgers University, N.Y. USA
Introduction to the quantum impurity problem

Date: From 2003-05-15 10:30:00 to 2003-05-15 11:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula C
Dr. Simon Day
Benfield Hazard Research Centre, University College, London UK
Collapsing volcanoes and giant tsunamis: from Stromboli to the Canary Islands

Date: From 2003-05-14 11:30:00 to 2003-05-14 13:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula E
Prof. Nathan Andrei
Rutgers University, N.Y. USA
Introduction to the quantum impurity problem

Date: From 2003-05-05 16:00:00 to 2003-05-05 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Edoardo Lanza
INFN, Sez. Catania Italy
Descrizione microscopica delle eccitazioni di risonanza multiple in collisioni tra ioni pesanti
Abstract/Calendar
L'esistenza di stati di Risonanza Gigante (RG) costruiti su un'altra RG e' ormai ben consolidata. La loro sezione d'urto inelastica, quando calcolata secondo il modello armonico, e' quasi sempre piu' piccola di quelle misurate ( di circa il 30% fino ad un fattore 2). La discrepanza viene colmata includendo delle correzioni all'approssimazione armonica, come per esempio le anarmonicita' della Hamiltoniana interna e le nonlinearita' nel campo esterno. Gli effetti di questi nuovi termini sulle probabilita' di eccitazione delle doppie RG sono stati studiati sia in modelli schematici che in modelli realistici microscopici. Nel seminario si dara' una visione globale della problematica sia dal punto di vista sperimentale che teorico.
Date: From 2003-04-23 16:00:00 to 2003-04-23 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Chiara Maieron
INFN, Sez. Catania Italy
Nuclear model effects in charged-current neutrino-nucleus quasielastic scattering
Abstract/Calendar
Neutrino-nucleus scattering has attracted much attention in recent years, as it is used to detect neutrinos in order to study their properties. I will consider the quasielastic scattering of muon neutrinos on carbon 12 and oxygen 16 targets, described within a relativistic shell model and, for comparison, the relativistic Fermi gas. Final state interactions are described in the distorted wave impulse approximation. I will present results for inclusive cross sections at fixed neutrino energies in the range E_nu = 200 MeV - 1 GeV, showing that final state interaction effects remain sizeable even at large energies. I will then show relativistic shell model results for the nu_mu-^{12}C inclusive cross section in the kinematical conditions of the LSND experiment at Los Alamos, and compare these results with the experimental data.
Date: From 2003-04-16 16:00:00 to 2003-04-16 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula B
Prof. Francesco Saverio Cataliotti
Dipartimento di Fisica e Astronomia and Scuola Superiore di Catania, Università di Catania Italy
Presentazione delle attività di laboratorio della Scuola Superiore di Catania su "Logica Quantistica", "Atom Chips" e sovrapposizioni quantistiche
Abstract/Calendar
Le tecniche di raffreddamento laser e successiva manipolazione laser e magnetica degli atomi ultrafreddi, integrate con tecniche di deposizione superficiale, sia litografiche che equivalenti, permettono di costruire quello che ormai si definisce un "atom chip". Questi dispositivi rappresentano uno degli schemi piú promettenti per l'ottica atomica coerente e potrebbero costituire la base per una nuova classe di sensori integrati e di strumenti di logica quantistica. L'integrazione di molti elementi per il controllo atomico su di un singolo dispositivo offre la possibilità di realizzare esperimenti di fisica atomica in modo piú semplice e robusto. Inoltre la realizzazione di potenziali di dimensioni inferiori alla lunghezza d'onda di de Broglie degli atomi (possibile grazie alla combinazione di strutture miniaturizzate e atomi ultrafreddi) permette di ridurre di molto l'influenza dell'ambiente esterno e di migliorare di conseguenza la manipolazione coerente.
Date: From 2003-04-15 16:00:00 to 2003-04-15 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula I
Dr. Alfio Bonanno
Osservatorio Astrofisico, Catania Italy
Nonperturbative renormalization of Gravity and its cosmological implications
Abstract/Calendar
We briefly summarize the the recent evidence supporting the conjecture that four-dimensional Quantum Einstein Gravity is nonperturbatively renormalizable. In this framework we show that quantum gravity effects in the very early Universe might provide a resolution to the horizon and flatness problem of standard cosmology. In particular, homogeneous and isotropic cosmologies of the Planck era before the classical Einstein equations become valid are studied taking quantum gravitational effects into account.
Date: From 2003-04-14 16:00:00 to 2003-04-14 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. S. Stramaglia
Università di Bari, Italy Italy
Metodi di clustering per classificare segnali magnetoencefalografici
Abstract/Calendar
Lo studio dei metodi di clustering (e l'analisi di correlazioni) ha recentemente avuto nuovo impulso da applicazioni biofisiche (genoma) e mediche. Più in particolare si considera la classificazione, non supervisionata, di un insieme di soggetti rispetto alla loro risposta ad uno stimolo somatosensoriale misurata con la tecnica della Magnetoencefalografia. Si propone la metodologia di preprocesare i dati utilizzando la tecnica del multidimensional scaling e successivamente di applicare una tecnica gerarchica di clustering.
Date: From 2003-04-12 10:00:00 to 2003-04-12 20:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, 2 piano
G. Foti, G. Carbone, C. Causale, R. Giudice, M. Curcuruto
III Conferenza Teatrale: Portopalo.it: Dal naufragio fantasma al naufragio della verità
Abstract/Calendar
- ore 10,30-13,00: Seminario su "Identità e contagio: mutamenti identitari
nell'era della globalizzazione", Prof. Gaetano Foti, Dott. Giuseppe Carbone,
Prof. Carmelo Causale, Prof. Rocco Giudice, Dott. Nuccio Mangiameli, Prof.
Daniele Tranchida
- ore 10,00-20,00: Mostra fotografica migranti di Francesco Marchica.
- ore 18,00: Conferenza Teatrale

Date: From 2003-04-07 16:00:00 to 2003-04-07 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Marcella Grasso
Dipartimento di Fisica e Astronomia, Università di Catania, and INFN, Sez. Catania Italy
Hartree-Fock-Bogoliubov e local-density approximation per sistemi di atomi fermionici superfluidi
Abstract/Calendar
Negli ultimi anni le tecniche di confinamento e di raffreddamento di atomi fermionici, come il 40K e il 6Li, sono state notevolmente affinate. Tali sforzi sono finalizzati alla realizzazione di una transizione alla fase superfluida al di sotto di una certa temperatura critica. Dei calcoli Hartree-Fock-Bogoliubov a diverse temperature verranno presentati e confrontati con risultati ottenuti con un approccio semiclassico.
Date: From 2003-04-01 09:00:00 to 2003-05-01 19:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Giuseppe Andronico
INFN, Sez. Catania Italy
Corso di programmazione object-oriented

Date: From 2003-04-01 09:00:00 to 2003-05-01 19:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Giuseppe Andronico
INFN, Sez. Catania Italy
Corso di calcolo parallelo

Date: From 2003-03-31 16:00:00 to 2003-03-31 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Valerio Pirronello
DMFCI, Università di Catania Italy
Formazione di molecole su superfici di interesse astrofisico

Date: From 2003-03-20 11:00:00 to 2003-03-20 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Daniel Denegri
CERN, Switzerland, and DAPNIA, Saclay France
Status of LHC and CMS construction. Physics expectations for the first year.
Abstract/Calendar
Recent progress on LHC and CMS construction will be discussed. The Physics reach of the CMS detector will be presented with particular emphasis to the discovery capabilities in the first year of data taking, when an integrated luminosity of about 10 fb-1 will be collected.
Date: From 2003-03-18 17:00:00 to 2003-03-18 19:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Dr. Daniele Spadaro
INAF, Osservatorio Astrofisico di Catania Italy
Noi e il Sole: vivere con una stella (Sun-Earth Days)
Abstract/Calendar
Al fine di sensibilizzare il grande pubblico sull'importanza dello studio della struttura fisica del Sole e dei processi dinamici che in esso avvengono, gli scienziati europei organizzano nei giorni dal 18 al 23 marzo 2003 la manifestazione internazionale "Sun-Earth Days", riguardante il nostro Sole e la sua connessione con l'ambiente e le attività terrestri. Promossa dall'Agenzia Spaziale Europea (ESA) in collaborazione con l'americana NASA, consiste in una serie di mostre e conferenze sull'argomento programmate contemporaneamente in tutta l'Europa e negli Stati Uniti. L'Osservatorio Astrofisico di Catania e la Sezione di Astrofisica del Dipartimento di Fisica e Astronomia dell'Università di Catania partecipano all'iniziativa, prevedendo un forte coinvolgimento degli studenti delle scuole di ogni ordine e grado via Internet mediante l'accesso ad una pagina web specifica. La pagina contiene informazioni e altra documentazione multimediale sulla manifestazione, una descrizione della struttura interna e dell'atmosfera del Sole, degli eventi dinamici e delle loro interazioni con la magnetosfera terrestre, nonché immagini del Sole, acquisite in tempo reale presso gli osservatori di Catania, Roma e Trieste. Verrà attivato anche un forum per sottoporre domande. Inoltre è in programma una conferenza pubblica il 18 marzo 2003, alle ore 17, presso l'Aula Magna del Dipartimento di Fisica e Astronomia dell'Università (ingresso da via S. Sofia, 64).
Il fatto che questa manifestazione sia organizzata negli stessi giorni in tutta Europa e negli Stati Uniti dimostra l'importanza degli studi che i ricercatori effettuano sui processi fisici che avvengono sul Sole e sui loro riflessi sull'ambiente e le attività terrestri.

Date: From 2003-03-18 16:00:00 to 2003-03-18 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Paolo Castorina
Dipartimento di Fisica e Astronomia, Università di Catania Italy
Radiazione di Sincrotrone in elettrodinamica non commutativa
Abstract/Calendar
Recentemente è stata ripresa l'idea di Heisenberg , poi sviluppata da Snyder nel 1947, di teorie nelle quali le coordinate non commutano. L'argomento è abbastanza provocatorio e si introdurranno brevemente le ragioni che hanno motivato il nuovo interesse a questi studi. In particolare si discuterà, anche se in maniera elementare, come si modifica l'elettrodinamica se le coordinate spaziali non commutano e si mostrerà la possibilità di violazioni dell'invarianza di Lorentz dovute ad onde elettromagnetiche "non commutative" che possono avere velocità maggiori di c. Si verifcherà infine che lo studio della radiazione di sincrotrone potrebbe rappresentare un buon metodo per verificare l'esistenza (o porre forti limiti) sulla non commutatività.
Date: From 2003-03-14 09:30:00 to 2003-03-14 13:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula Magna
Giornata di studio in onore del Prof. Antonino Rubbino
Professore Emerito dell'Università degli Studi di Catania
Socio Benemerito della Società Italiana di Fisica

Abstract/Calendar
9.30     Saluto del 
           
     -Magnifico Rettore dell'Universita'  degli Studi di Catania, 
       Prof. Ferdinando Latteri           
     
     -Preside della Facolta' di Scienze Matematiche Fisiche e Naturali,
       Prof. Renato Pucci                
      
     -Direttore del Dipartimento di Fisica ed Astronomia, 
       Prof. Augusto Scalia   
      
     -Direttore dei Laboratori Nazionali del Sud, 
       Prof. Emilio Migneco

Presiede Prof. Attilio Agodi
 
10.00  "New trends in Nuclear Thermodynamics"
        Prof. Philippe Chomaz,  GANIL, Francia

11.00   "Antonino Rubbino e la Società Italiana di Fisica",  
        Prof. Franco Bassani, Scuola Normale Superiore, Pisa

11.30   "Antonino Rubbino e la Fisica a Catania", 
        Prof. Emanuele Rimini, Dipartimento di Fisica ed Astronomia, Catania

12.15   Interventi

12.45   Chiusura dei lavori
   

                                    Il Comitato Organizzatore
                                       
                                       Prof. Augusto Scalia
                                       Prof. Emilio Migneco
                                     Prof. Giuseppe Pappalardo
                                       Dott.ssa Sara Pirrone


Date: From 2003-02-17 16:00:00 to 2003-02-17 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula C
Dr. Jordi Mur i Petit
Università di Barcellona, ECM Spain
Superfluidity in low density Fermi gases

Date: From 2003-01-19 16:00:00 to 2003-01-19 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Massimo Papa
INFN, Sez. Catania Italy
Emissione gamma dipolare di pre-equilibrio indotta da collisioni tra ioni pesanti alle energie intermedie
Abstract/Calendar
L'emissione gamma dipolare di pre-equilibrio indotta da collisioni tra ioni pesanti e' descritta mediante un approccio totalmente dinamico basato sul "Constrained Molecular Dynamics model" (CoMD). In particolare l'approccio seguito consente di decrivere l'emissione gamma coerente e non da GDR prodotte in nuclei altamente eccitati. Nella relazione proposta verranno presentati i risulati dello studio condotto a varie energie ed in particolare sara' anche discusso un confronto con recenti risultati sperimentali ottenuti per i sistemi 40Ca+46Ti e 40Ca+48Ti a 25 MeV/A studiati nell'ambito della collaborazione TRASMARAD.
Date: From 2002-12-18 11:00:00 to 2002-12-18 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Vladimir Avdeichicov
University of Lund Sweden
Energy calibration of CsI(Tl) crystals. Problems and solutions.

Date: From 2002-12-10 16:00:00 to 2002-12-10 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Annalisa Baeri
IMM, CNR, Catania Italy
Piezoresistive pressure sensor for high temperature application

Date: From 2002-12-05 17:00:00 to 2002-12-05 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Dr. H. D. Hochheimer
Department of Physics, Colorado State University, Fort Collins USA
What can we learn from the use of high pressure in solid state
Abstract/Calendar
Several techniques (Raman and Brillouin scattering, absorption and luminescence measurements, energy dispersive X-ray diffraction, and conductivity measurements) used in combination with high pressure to study phase transitions will be described. The usefulness as well as the limitations of these techniques is then demonstrated by presenting results of a number of studies of materials which undergo structural phase transitions (ammonium halides, copper chloride, alkali cyanides, ternary chalcogenides) or isostructural transitions (YbO, chromium alloys), where the valence state of the atom or the spin-density wave state changes with pressure. Furthermore, I will discuss the first observation of a crossing of crystal field levels with pressure. The results will be discussed using an angular overlap model.
Date: From 2002-12-05 15:30:00 to 2002-12-05 16:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Michel Baranger
MIT and New England Complex Systems Institute USA
The interdependence of spatial complexity and genetic diversity in evolutionary biology
Abstract/Calendar
I shall review some recent work done at the New England Complex Systems Institute. It deals with the possible existence of dynamic spatial patterns in population distributions, and how strongly these patterns may change the evolution of these populations. The importance of such effects in ecological processes has been well-known for some time. But the corresponding situation in the field of genetics is just beginning to be studied. This will be the subject of my talk. I shall argue that the gene-centered view of evolution, which is the most common view, especially in the popular literature, is incomplete and often incorrect, because it ignores correlations between genes. I shall liken the gene-centered view to the mean-field approximation in many-body physics. Both of these approximations may break down if there happen to be spatial variables in the evolution equations, even if these equations themselves are totally invariant under space translations. This is the phenomenon of symmetry-breaking, well-known to physicists. I shall give several simple examples from the field of genetics, illustrating the formation of spatial patterns in the distribution of genomes.
Date: From 2002-12-02 16:00:00 to 2002-12-02 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Stefano Ruffo
Dipartimento di Energetica "S. Stecco", Università di Firenze, INFM and INFN Firenze Italy
Long-range interactions: a "pandora box" of new phenomena
Abstract/Calendar
I will discuss the problem of "ensemble inequivalence": the disagreement in the value of averages (energy, temperature, etc.)in different statistical ensembles which persists inthe thermodynamic limit. This can appear when the interaction is long-range, i.e. potentials decay at large distances with a power less or equal than the Euclidean space dimension. A large class of long-range interactions that is frequently introduced in statistical physics is the one of mean-field models. We have solved exactly some mean-field models (e.g. the Blume-Emery-Griffiths model), both in the canonical and in the microcanonical ensemble and proven that these give inequivalent predictions when the system is inhomogeneous, for instance at a first-order phase transition. In particular, we have shown that ``negative specific heat" and "temperature jumps" can arise in the microcanonical ensemble. Both these phenomena are potentially observable in nature: recently signals of the presence of a negative specific heat have been observed in the melting process of atomic clusters, where the range of the interaction is of the order of the size of the system, mimicking the effect of long-range interactions. We have also shown that these peculiar effects are not specific of the mean-field limit, but can be present also when the interaction is weakly decaying in space. I will briefly discuss also the appearence of coherent structures in the dynamics of systems with long-range interaction, whose lifetime increases with system size.
Date: From 2002-11-21 16:00:00 to 2002-11-21 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Dr. Fabrizio Roccaforte
IMM, CNR, Catania Italy
Low power dissipation in silicon carbide Schottky rectifiers

Date: From 2002-11-20 16:00:00 to 2002-11-20 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula I
Prof. Luciano Rezzolla
SISSA, International School for Advanced Studies, Trieste Italy
Sorgenti astrofisiche di onde gravitazionali

Date: From 2002-11-19 16:00:00 to 2002-11-19 17:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Luciano Rezzolla
SISSA, International School for Advanced Studies, Trieste Italy
Quasi periodic accretion and gravitational waves from a toroidal neutron star orbiting a Schwarzschild black hole
Abstract/Calendar
I present axisymmetric general relativistic hydrodynamics simulations of constant angular momentum compact discs orbiting a Schwarzschild black hole. These discs are expected as a result of stellar gravitational collapse or binary neutron star merger, can reach very high rest-mass densities and behave effectively as ``toroidal neutron stars''. Our attention is here focussed on the dynamical response of these objects to perturbations. I show that, upon the introduction of perturbations, these systems either become unstable to the run-away instability or exhibit a strikingly regular oscillatory behaviour resulting in a , quasi-periodic variation of the mass accretion rate as well as of the density distribution. Despite being axisymmetric, the perturbed discs experience large variations of the rest-mass distribution hence emitting considerable amounts of gravitational radiation. The strength of the gravitational waves emitted can be up to two orders of magnitude larger than the one expected in stellar-core collapse making these new sources of gravitational waves potentially detectable.
Date: From 2002-10-17 17:00:00 to 2002-10-17 18:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Professor Emeritus N. H. March
Department of Physics, University of Antwerp, Belgium, and Oxford University, Oxford UK
Fingerprints of unconventional superconductivity in heavy Fermion materials in high-Tc cuprates

Date: From 2002-10-03 11:00:00 to 2002-10-03 12:00:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Professor Emeritus N. H. March
Department of Physics, University of Antwerp, Belgium, and Oxford University, Oxford UK
Phase transitions in charged fluids: especially liquid metals and electron-hole droplets

Date: From 2002-06-10 09:00:00 to 2002-06-10 14:00:00
4th Catania Relativistic Ion Studies (CRIS 2002) on Exotic Clustering

Date: From 2001-11-28 09:00:00 to 2001-12-01 19:00:00
Location: Laboratori Nazionali del Sud (LNS), Catania,
International Workshop on Multifragmentation and Related Topics (IWM 2001)

Date: From 2001-09-27 10:00:00 to 2001-09-28 19:00:00
Location: Dipartimento di Fisica e Astronomia, Corso Italia, 57, Aula Est
International meeting to mark the 60th birthday of Francesco Catara
Abstract/Calendar
  • Giovedí 27 settembre 2001
    • Morning session, Chairperson: R. Pucci
    • ore 10:00 R. Pucci
      Welcome from the Faculty Dean
    • ore 10:15 A. Agodi
      Vacuum structure and the deconfining transition in QCD
    • ore 11:00 coffee break
    • ore 11:30 N. Van Giai
      Matter instabilities and neutrino propagation
    • ore 12:00 L. Ferreira
      Resonances Beyond the Proton Drip-line
    • ore 12:30 U. Lombardo
      Superfluid nuclear matter
    • ore 13:00 lunch
    • Afternoon session, Chairperson: M. Baldo
    • ore 15:30 M. Grasso
      Pairing correlations towards the drip line
    • ore 16:00 M. Baldo
      Neutron Star Structure
    • ore 16:30 coffee break
    • ore 17:00 A. Insolia
      Very high-energy cosmic rays: the Auger experiment
    • ore 17:30 A. Rapisarda
      Dynamical features of a phase transition in a finite size system
    • ore 18:00 E. Kwasniewicz
      Boson mapping of fermion systems: application to selected nuclei
  • Venerdí 28 settembre 2001
    • Morning session, Chairperson: G. Fonte
    • ore 10:00 M. Di Toro
      The elusive isospin physics
    • ore 10:45 E. Maglione
      Proton decay from deformed nuclei
    • ore 11:15 coffee break
    • ore 11:45 A. Vitturi
      Multiple response of weakly-bound systems
    • ore 12:15 M. Sambataro
      Many-body correlations in a boson formalism
    • ore 12:15 P. Castorina
      Quarks in Nuclei
    • ore 13:15 lunch
    • Afternoon session, Chairperson: M. Di Toro
    • ore 15:30 A. Pagano
      The first experiment with the 4\pi Detector Chimera: isospin effects in HIC
    • ore 16:00 J. M. Arias
      Continuum discretization for weakly bound nuclei
    • ore 16:30 coffee break
    • ore 17:00 A. Scalia
      Fusion cross section from the optical model
    • ore 17:30 D. Zappalà
      Application of the exact renormalization group in scalar field theory and quantum mechanics
    • ore 18:00 E. G. Lanza
      Multiphonon excitation in heavy ion collisions
    • ore 18:00 F. Catara
      I miei primi sessant'anni...

Date: From 2001-09-18 09:00:00 to 2001-09-18 13:15:00
Location: Dipartimento di Fisica e Astronomia, Corso Italia, 57, Aula Rossa
Abstract/Calendar
  • ore 09:00 R. Fazio
    Introduzione alla computazione quantistica
  • ore 10:00 M. Inguscio
    Esperimenti sulla BEC
  • Break
  • ore 11:15 V. Raineri
    Fabbricazione di nanostrutture presso l'IMETEM
  • ore 12:15 G. Falci
    Implementazioni a stato solido di computer quantistici

Date: From 2001-07-20 16:30:00 to 2001-07-20 17:30:00
Location: Dipartimento di Fisica e Astronomia, Corso Italia, 57, Aula Rossa
Dr. B. Alles
Dipartimento di Fisica, Università di Milano-Bicocca, Milano Italy
Tecniche di calcolo a temperatura e densità finite
Abstract/Calendar
Si mostrano le tecniche perturbative e non perturbative più comunemente usate per studiare il problema delle condizioni estreme di densità e temperatura.
Date: From 2001-07-19 16:00:00 to 2001-07-19 17:00:00
Location: Dipartimento di Fisica e Astronomia, Corso Italia, 57, Aula Rossa
Dr. B. Alles
Dipartimento di Fisica, Università di Milano-Bicocca, Milano Italy
Diagramma di fase della QCD
Abstract/Calendar
Si calcola una stima fenomenologia del diagramma di fasi in QCD confrontando un gas di quark e gluoni liberi con le predizioni del modello Bag del MIT.
Date: From 2001-07-18 11:00:00 to 2001-07-18 12:00:00
Location: Dipartimento di Fisica e Astronomia, Corso Italia, 57, Aula Rossa
Dr. S. Buogo
Istituto d'Acustica "O. M. Corbino", CNR, Roma Italy
Sorgenti acustiche marine basate su implosione di bolla di cavitazione: caratteristiche e applicazioni

Date: From 2001-07-11 11:00:00 to 2001-07-11 12:00:00
Location: Dipartimento di Fisica e Astronomia, Corso Italia, 57, Aula Rossa
Professor Emeritus N. H. March
Department of Physics, University of Antwerp, Belgium, and Oxford University, Oxford UK
Future directions in superfluidity and superconductivity

Date: From 2001-07-10 15:00:00 to 2001-07-14 12:00:00
Location: Dipartimento di Fisica e Astronomia, Corso Italia, 57, Aula Rossa
Prof. Gennaro Miele
Università di Napoli "Federico II" and INFN, Sez. di Napoli Italy
Corso di astroparticelle. (Dottorato di ricerca in fisica, XIV ciclo)
Abstract/Calendar
  • Martedí 10 luglio 2001, ore 15:00-17:00
    Standard cosmology: Hot Big Bang model
  • Mercoledí 11 luglio 2001, ore 15:00-17:00
    Inflation and Cosmic Microwave Background Radiation (CMBR)
  • Giovedí 12 luglio 2001, ore 10:00-12:00
    Thermodynamics of an expanding universe
  • Venerdí 13 luglio 2001, ore 15:00-17:00
    Primordial nucleosynthesis (BBN) and relic neutrinos
  • Sabato 14 luglio 2001, ore 10:00-12:00
    Neutrinos from astrophysical sources and neutrino oscillations

Date: From 2001-07-09 15:00:00 to 2001-07-09 17:00:00
Location: Dipartimento di Fisica e Astronomia, Corso Italia, 57, Aula Rossa
Dr. Carla Aramo
INFN, Sez. Catania Italy
Introduzione al Corso di astroparticelle. (Dottorato di ricerca in fisica, XIV ciclo)

Date: From 2001-07-05 16:30:00 to 2001-07-05 17:30:00
Location: Dipartimento di Fisica e Astronomia, Corso Italia, 57, Aula Rossa
Prof. P. M. Stevenson
Rice University, Houston USA
Are there pressure waves in the vacuum?

Date: From 2001-07-05 11:00:00 to 2001-07-05 12:00:00
Location: Dipartimento di Fisica e Astronomia, Corso Italia, 57, Aula Rossa
Professor Emeritus N. H. March
Department of Physics, University of Antwerp, Belgium, and Oxford University, Oxford UK
Electron correlation in atoms, molecules and condensed phases

Date: From 2001-04-06 11:00:00 to 2001-04-06 12:00:00
Location: Dipartimento di Fisica e Astronomia, Corso Italia, 57, Aula Rossa
Prof. Daniel Denegri
CERN, Geneva Switzerland
Heavy-ion collisions at CMS

Date: From 2001-04-05 16:30:00 to 2001-04-05 17:30:00
Location: Dipartimento di Fisica e Astronomia, Corso Italia, 57, Aula Rossa
Prof. Daniel Denegri
CERN, Geneva Switzerland
Physics with CMS at the LHC

Date: From 2000-12-18 09:30:00 to 2000-12-18 10:30:00
Location: Dipartimento di Fisica e Astronomia, Corso Italia, 57, Aula Rossa
Dr. Vito Latora
LPTMS Orsay France
Small world networks
Abstract/Calendar
The connection topology of many biological, technological and social networks is neither completely regular nor completely random. These networks called small world are in fact highly clustered, like regular lattices, yet having small characteristics path lengths, like random graphs. We discuss two recent theories on small world networks and we show some concrete examples (the neural system of the worm C.elegans, the collaboration graph of film actors, a subway transportation system).
Date: From 2000-11-23 18:00:00 to 2000-11-23 19:00:00
Location: Dipartimento di Fisica e Astronomia, Corso Italia, 57, Aula Rossa
Prof. H. D. Middendorf
Clarendon Laboratory, Oxford University, and ISISE, Oxford UK
Dynamics of soft condensed matter by neutron scattering
Abstract/Calendar
Thermal or cold neutrons with de Broglie wavelengths from 2 to 20 Å are versatile probes of the structure and dynamics of soft condensed matter. Because of their low energies (20 to 0.2 meV), it is possible with neutrons to go beyond diffraction and to energy-analyse the intensity recorded at each scattering angle, in addition to measuring its dependence on angle. The full information content of the scattered radiation field becomes accessible in this way. Familiar diffraction methods are generalised to give dynamic structure factors S(Q,a) which are weighted sums of the coherent and single-particle response functions of the target system (Q=momentum transfer, Sa=energy transfer). The information obtained is unique and often comple-mentary to that from other techniques because
  • the large space-time domain covered extends from the atomic to the near- hydrodynamic regime (.1 to 100 Å; fsec to Tsec);
  • hydrogen/deuterium exchange or covalent substitution can be exploited to create a wide range of contrast and to accentuate or 'fade out' the scattering due to particular constituents;
  • the simplicity of point-like nuclear scattering facilitates data interpretation, and makes neutron scattering by far the most informative experimental counterpart to simulation studies.
Since the 1970s, neutron scattering has been applied to progressively larger and more complex molecules, and has become an important tool in particular for the study of colloids, molecular crystals, polymers and biopolymers. Many experiments have been concerned with probing structural and dynamical properties of hydrated systems. In recent years much impetus has come from the need to develop an experimental basis for testing increasingly sophisticated computer simulations of complex systems.
Following an introduction to the basic ideas and concepts, this lecture aims to illustrate soft-matter applications of quasielastic and inelastic neutron scattering by discussing selected results from three areas of current work:
  1. the dynamics of gels and of relatively dense, or 'crowded', macromolecular solutions;
  2. the glass (or glass-like) transition and the approach to it from the fluid phase;
  3. the polymer coil-globule transition, and the dynamics of globular proteins.

Date: From 2000-07-11 17:00:00 to 2000-07-11 18:00:00
Location: Dipartimento di Fisica e Astronomia, Corso Italia, 57, Aula Rossa
Professor Emeritus N. H. March
Department of Physics, University of Antwerp, Belgium, and Oxford University, Oxford UK
Variation of local coordination number with thermodynamic state in elemental liquids including metals

Date: From 2000-07-04 18:00:00 to 2000-07-04 19:00:00
Location: Dipartimento di Fisica e Astronomia, Corso Italia, 57, Aula Rossa
Dr. A. Stepanov
Université d'Aix-Marseille III France
Magnetic resonance studies of low dimensional antiferromagnets

Date: From 2000-07-04 17:00:00 to 2000-07-04 18:00:00
Location: Dipartimento di Fisica e Astronomia, Corso Italia, 57, Aula Rossa
Professor Emeritus N. H. March
Department of Physics, University of Antwerp, Belgium, and Oxford University, Oxford UK
Electron confinement: model kinetic and exchange energy density functionals

Date: From 2000-07-04 16:00:00 to 2000-07-04 17:00:00
Location: Dipartimento di Fisica e Astronomia, Corso Italia, 57, Aula Rossa
Prof. A. A. Varlamov
INFM, Sez. di Roma Tor Vergata Italy
The role of inter-electron interaction in the normal state properties of high-temperature superconductors

Date: From 2000-03-15 09:30:00 to 2000-03-15 10:30:00
Location: Dipartimento di Fisica e Astronomia, Corso Italia, 57, Aula Rossa
Dr. Massimo Marchiori
MIT, W3 Consortium, Boston MA, USA, and Dipartimento di Informatica, Università di Venezia Italy
Tecnologie WEB del nuovo millennio

Date: From 2000-03-02 11:00:00 to 2000-03-02 12:00:00
Location: Dipartimento di Fisica e Astronomia, Corso Italia, 57, Aula Rossa
Prof. Pietro Ballone
Dipartimento di Fisica, Università di Messina Italy
Simulazioni ``Car-Parrinello'' per sistemi molecolari organici: proprietà strutturali, modi vibrazionali e reattività di policarbonati

Date: From 1999-12-22 10:00:00 to 1999-12-22 11:00:00
Location: Dipartimento di Fisica e Astronomia, Corso Italia, 57, Aula Est
Dr. Giuseppe Verde
National Superconducting Cyclotron Laboratory, Michigan State University USA
Isospin fractionation in collisioni centrali ad energie intermedie

Date: From 1999-04-27 17:00:00 to 1999-04-27 18:00:00
Location: Dipartimento di Fisica e Astronomia, Corso Italia, 57, Aula Est
Dr. Fabrizio Roccaforte
II. Physikalisches Institut, Universitat Gottingen Germany
The role of alkali ions network modifiers in epitaxial regrowth of ion-beam amorphized alpha-quartz

Date: From 1998-12-04 11:00:00 to 1998-12-04 12:00:00
Location: Dipartimento di Fisica e Astronomia, Corso Italia, 57, Aula Rossa
Alexander Sibirtsev
Institut für Theoretische Physik I, Giessen Germany
Kaon and Antikaon potentials in nuclear matter and trends in heavy ion physics

Date: From 1998-11-27 16:00:00 to 1998-11-27 17:00:00
Location: Istituto di Fisica, Via A. Doria, 6, Sala riunioni
Dr. Roberto Raimondi
Università di Roma 3, Roma Italy
Specific heat anomaly and adiabatic hysteresis in disordered electron systems in a magnetic field

Date: From 1998-09-07 09:00:00 to 1998-09-11 19:00:00
Location: Hotel La Perla Ionica, Catania,
36th EHPRG Meeting on Molecular and Low Dimensional Systems under Pressure

Date: From 1998-07-24 10:00:00 to 1998-07-24 11:00:00
Location: Dipartimento di Fisica e Astronomia, Corso Italia, 57, Aula Rossa
Prof. David M. Brink
Università and ECT, Trento Italy
Fluctuation-dissipation

Date: From 1998-07-23 16:00:00 to 1998-07-23 17:00:00
Location: Dipartimento di Fisica e Astronomia, Corso Italia, 57, Aula Rossa
Prof. David M. Brink
Università and ECT, Trento Italy
Mean field methods

Date: From 1998-07-16 17:30:00 to 1998-07-16 18:30:00
Location: Dipartimento di Fisica e Astronomia, Corso Italia, 57, Aula Rossa
Dr. Vincenzo Branchina
Université L. Pasteur, Strasbourg France
Non-trivial saddle points and Renormalization Group

Date: From 1998-07-16 16:30:00 to 1998-07-16 17:30:00
Location: Dipartimento di Fisica e Astronomia, Corso Italia, 57, Aula Rossa
Prof. Paul Stevenson
Rice University, Houston USA
Dynamics of the zero mode in \Phi^4 theory

Date: From 1998-04-08 11:30:00 to 1998-04-08 12:30:00
Location: Istituto di Fisica, Via A. Doria, 6, Aula V4
Prof. Dr. Ulrich Weiss
II. Institut für Theoretische Physik, Universität Stuttgart Germany
Field-induced dynamical stimulation and quenching of dissipative quantum tunneling: Coherences and populations

Date: From 1998-04-02 15:00:00 to 1998-04-02 16:00:00
Location: Dipartimento di Fisica e Astronomia, Corso Italia, 57, Aula Rossa
Prof. Dr. Ulrich Weiss
II. Institut für Theoretische Physik, Universität Stuttgart Germany
The influence functional method for equilibrium and nonequilibrium correlation functions with applications

Date: From 1998-03-26 17:00:00 to 1998-03-26 18:00:00
Location: Dipartimento di Fisica e Astronomia, Corso Italia, 57, Aula Rossa
Gaetano Salina
INFN, Sez. Roma 2 Italy
Dinamica molecolare e computers della famiglia APE

Date: From 1998-02-25 17:00:00 to 1998-02-25 18:00:00
Location: Dipartimento di Fisica e Astronomia, Corso Italia, 57, Aula Rossa
S. P. Goldman
Dept. of Physics and Astronomy, University of Western Ontario Canada
Using physical properties to perform difficult calculations very simply and extremely accurately

Date: From 1998-02-19 17:00:00 to 1998-02-19 18:00:00
Location: Dipartimento di Fisica e Astronomia, Corso Italia, 57, Aula Rossa
Silvia Scalese
Dipartimento di Fisica, Università della Calabria, Cosenza Italy
Indagini strutturali di superficie mediante tecniche di diffusione di elettroni: alcuni esempi

Date: From 1998-01-28 17:00:00 to 1998-01-28 18:00:00
Location: Dipartimento di Fisica, Corso Italia, 57, Aula Rossa
Fulvio Frisone
Centro Siciliano di Fisica Nucleare e Struttura della Materia, Catania Italy
Studio sulle proprietà di interazione tra i plasmoni del metallo e deuteroni

Date: From 1998-01-16 16:30:00 to 1998-01-16 17:30:00
Location: Dipartimento di Fisica, Corso Italia, 57, Aula Rossa
Carlo De Marzo
Dipartimento di Fisica, Università di Bari Italy
Misura di raggi cosmici di energia estrema con l'esperimento Airwatch e possibilità di una nuova fisica

Date: From 1998-01-14 17:00:00 to 1998-01-14 18:00:00
Location: Dipartimento di Fisica, Corso Italia, 57, Aula Rossa
Professor Emeritus N. H. March
Oxford University, Oxford UK
Matter in hyperstrong applied fields and at high temperature:generalized Thomas-Fermi statistical theory

Date: From 1998-01-07 17:00:00 to 1998-01-07 18:00:00
Location: Dipartimento di Fisica, Corso Italia, 57, Aula Rossa
Professor Emeritus N. H. March
Oxford University, Oxford UK
High pressure effects in chemically bonded phases

Date: From 1997-12-22 16:30:00 to 1997-12-22 17:30:00
Location: Dipartimento di Fisica, Corso Italia, 57, Aula Rossa
Kenichi Konishi
Dipartimento di Fisica, Università di Genova Italy
Teorie di gauge supersimmetriche

Date: From 1997-12-22 11:00:00 to 1997-12-22 12:00:00
Location: Dipartimento di Fisica, Corso Italia, 57, Aula Rossa
Prof. Roberto Soldati
Dipartimento di Fisica, Università di Bologna Italy
Interazione di Aharonov-Bohm e teoria di Chern-Simons

Date: From 1997-12-18 11:30:00 to 1997-12-18 12:30:00
Location: Istituto di Fisica, Via A. Doria, 6, Sala riunioni
Dr. Ruggero Vaia
Istituto di Elettronica Quantistica del C.N.R. di Firenze Italy
Meccanica statistica di sistemi di spin quantistici in due dimensioni

Date: From 0000-00-00 00:00:00 to 2009-12-16 18:30:00
Location: Dipartimento di Fisica e Astronomia, Via S. Sofia, 64, Aula F
Prof. Dr. Kurt Unwurst, Hofrath
Das Schwarzschweinproblem: Ursprung der Quantschuens Herrschaft in der Moderne Physik
Abstract/Calendar
Inhalt:Es wird das Problem der Schwarschwein Ausstrhalung aus den Suidi Orden dargeboten: folgenmaessig Streit zwischen diesen und die Druiden. Die politische Quantschuens Loesung von Herr Marx Schlank : Auseinandersetezung und nachtraegliche Entwicklung Herrns Albrecht Einstein. Das gruendiliche Neueschweinstein der Physik unter dem Schwarzlicht seiner schmutigen Verhandlungen die bitterweise folgten Anfang des Zwangisten Jahrshundert [Si presenterà il problema della radiazione del Corpo Nero dall'ordine dei Suidi: conseguente polemica tra questi e Druidi. La soluzione politica guantica del signor Marx Schlank e la critica e suo successivo sviluppo del signor Alberto Unapietra: La fondamentale Neueschweinstein della fisica alla nera luce delle sporche vicissitudini che ne seguirono nei primi anni del XX secolo.]