Random

random@lists.dm.unipi.it

24 participants
5098 discussions

Seminario Sathyaa SUBRAMANIYAM (RGS & Matematica Applicata)
by Giacomo Aletti 13 Oct '14

13 Oct '14

Con preghiera di diffusione tra tutti i possibili interessati, scusandomi per invii multipli. Cordialmente, Giacomo Aletti -------------- Nell'ambito dei Reading Group Seminars e del Seminario di Matematica Applicata, il giorno lunedì 20 Ottobre 2014, alle ore 14.30, nell'Aula C del Dipartimento di Matematica dell'Universita' degli Studi di Milano, Via C. Saldini, 50, Milano, Sathyaa SUBRAMANIYAM - Department of Brain and Behavioral Science, University of Pavia, Italy - Consorzio Interuniversitario per le Scienze Fisiche della Materia (CNISM), Pavia, Italy terra' una conferenza dal titolo Detailed computation model for a cerebellar excitatory interneuron Abstract: Unipolar Brush Cells (UBCs) have been suggested to play a critical role in cerebellar functioning, yet the corresponding cellular mechanisms remain poorly understood. UBCs have recently been reported to generate, in addition to early-onset glutamate receptor-dependent synaptic responses, a late-onset response (LOR) composed of a slow depolarizing ramp followed by a spike burst (Locatelli et al., 2013). The LOR activates as a consequence of synaptic activity and involves an intracellular cascade modulating H- and TRP-current gating. In order to assess the LOR mechanisms, we have developed a UBC multi-compartmental model (including soma, dendrite, initial segment and axon) incorporating biologically realistic representations of ionic currents and a cytoplasmic coupling mechanism regulating TRP and H channel gating. The model finely reproduced UBC responses to current injection, including a burst triggered by a low-threshold spike sustained by CaLVA currents, a persistent discharge sustained by CaHVA currents, and a rebound burst following hyperpolarization sustained by H- and CaLVA-currents. Moreover, the model predicted that H- and TRP-current regulation was necessary and sufficient to generate the LOR and its dependence on the intensity and duration of mossy fiber activity. Therefore, the model showed that, using a basic set of ionic channels, UBCs generate a rich repertoire of bursts, which could effectively implement tunable delay-lines in the local microcircuit. ================= Reading Group Seminars: The Reading Group Seminars (RGS) are organized within an open community of researchers interested in applying up to date mathematical modeling and data analysis approaches to the study of biological systems. The RGS take place at the Math. Department in Milan (via Saldini). Initiatives and updates are published on the website: http://rgs.mat.unimi.it/. -- ------------------------------- Giacomo Aletti, Associate Professor ADAMSS Centre (ex MIRIAM) Advanced Applied Mathematical and Statistical Sciences Department of Mathematics (www.matematica.unimi.it) Via Saldini, 50 20133 Milano, Italy Tel: +39-02-503.16158 Fax:+39-02-503.16090 Cell: +39-340-9739142

1 0

Daphne Jackson Fellowship
by Enrico Scalas 10 Oct '14

10 Oct '14

Car* collegh*, all'Universita' del Sussex abbiamo una posizione biennale per facilitare il reinserimento di persone che hanno dovuto sospendere l'attivita' di ricerca per un periodo prolungato (due o piu' anni). Probabilita' e statistica fanno parte delle discipline incluse nel bando. Per maggiori informazioni si puo' consultare il link seguente: http://www.sussex.ac.uk/aboutus/jobs/819 Cordiali saluti Enrico Scalas

1 0

[Fwd: Assegno di ricerca]
by reni＠mi.imati.cnr.it 10 Oct '14

10 Oct '14

Ai membri della lista RANDOM invio questa segnalazione che penso possa di interesse. Cordiali saluti Renata Rotondi ---------------------------- Original Message ---------------------------- Subject: Assegno di ricerca From: "Stefania Gentili" <sgentili(a)inogs.it> Date: Thu, October 9, 2014 9:37 am To: sgentili(a)inogs.it -------------------------------------------------------------------------- Gentili colleghi, segnalo un bando per un assegno di ricerca presso OGS- Centro Ricerche sismologiche, sede di Udine, SCADENZA 20 OTTOBRE 2014, aperto a candidati con laurea scientifica che vi prego di diffondere tra chi pensiate possa essere interessato/adatto. Si chiede una solida preparazione matematico/statistica e conoscenze informatiche. L'assegnista collaborera' in progetti di ricerca che riguardano lo studio statistico dell'evoluzione spazio-temporale della sismicita' sia prima di forti eventi, al fine di rilevare possibili precursori sismici, che dopo di essi, per lo studio di sciami e sequenze sismiche. Particolare attenzione verra' posta nello studio della sismicita' dell'Italia nordorientale. All'assegnista verra' richiesto di applicare le proprie conoscenze di programmazione, di analisi statistica dei dati e di pattern recognition. Il bando si trova al sito: http://www.ogs.trieste.it/it/content/avviso-di-selezione-pubblica-n-1-asseg… la durata dell'assegno e' di un anno rinnovabile fino a 4 con possibili sviluppi successivi. Cordiali saluti, Stefania Gentili ================================================ Dr. Stefania Gentili Istituto Nazionale di Oceanografia e di Geofisica Sperimentale - OGS Centro Ricerche Sismologiche Via Treviso 55, 33100 Cussignacco (Udine), Italy Tel. +39 040 2140134, Fax. +39 0432 522474 E-mail: <mailto:sgentili%40inogs.it>sgentili(a)inogs.it Web page: http://www.ogs.trieste.it/ https://sites.google.com/site/stefaniagentili2/ ================================================

1 0

post-doc
by Lucia Caramellino 09 Oct '14

09 Oct '14

Sono aperte posizioni post-doc in probabilita` numerica e/o finanza matematica presso il CERMICS (Ecole des Ponts, Parigi) finanziate dalla "Chaire Risques Financiers" che riunisce le universita` Parigi 6, Ecole Polytechnique ed Ecole des Ponts. Per info, contattare Aurelien Alfonsi <alfonsi(a)cermics.enpc.fr>. ================================== Lucia Caramellino Dipartimento di Matematica Universita` di Roma "Tor Vergata" Via della Ricerca Scientifica I-00133, Roma, Italy www.mat.uniroma2.it/~caramell

1 0

Seminario di Probabilita'-Universita' di Padova
by alessandra bianchi 06 Oct '14

06 Oct '14

Ho il piacere di invitarvi al seguente seminario che si terrà Mercoledì 15 ottobre, alle ore 16.00, nell'aula 2BC30. del Dipartimento di Matematica dell'Università degli Studi di Padova. Speaker: Prof. Jan Swart Affiliation: Institute of Information Theory and Automation, Academy of Sciences of the Czech Republic Title: Particle systems with cooperative branching Abstract: In a cooperative branching system, pairs of particles, rather than individuals, produce offspring. Interacting particle systems with this sort of interaction have been used to model the effect of sexual reproduction and in particular the effect that in many species, a low population density reduces the reproductive success of individuals due to the difficulty of finding a partner. In this talk, I will review some older work on this sort of models and also discuss recent joint work with Anja Sturm on a model with cooperative branching and coalesence. For such a model in one dimension, we show that for low cooperative branching rates, the process dies out at the same geometric rate as a pure coalescent. The proof uses ideas related to a general duality for monotone systems due to Lawrence Gray. -- Alessandra Bianchi Dip. di Matematica Pura e Applicata Università di Padova Via Trieste, 63 - 35121 Padova, Italy phone: +39 049 827 14 06 fax: +39 049 827 14 28 e-mail: bianchi(a)math.unipd.it http://www.math.unipd.it/~bianchi/

1 0

Seminario Roma Tre 16 ottobre
by Pietro Caputo 05 Oct '14

05 Oct '14

SEMINARIO di Probabilita' a Roma Tre il 16/10/14 Prof. Itai Benjamini (Weizmann Institute) Titolo: Simple random walk and harmonic functions on graphs. Giovedi' 16 Ottobre 2014 ORE 16:00 Dipartimento di Matematica e Fisica Universita' degli Studi Roma Tre AULA 211 (Largo San L. Murialdo,1) Abstract First we will review a couple geometric invariants of graphs, such as the isoperimetric constant, hyperbolicity and vertex transitivity. Then we will discuss their manifestation in the behaviour of the simple random walk on the graph, in particular the existence of non constant bounded harmonic functions. --

1 0

Seminario Roma Tre 8 ottobre
by Pietro Caputo 05 Oct '14

05 Oct '14

Seminario di Probabilita' a Roma Tre Niccolo' Torri (Universite' Lyon 1) Titolo: A stretched-exponential Pinning Model with heavy-tailed Disorder Mercoledi' 08 Ottobre 2014 ORE 14:30 Dipartimento di Matematica e Fisica Universita' degli Studi Roma Tre AULA 311 (SEMINARI) Largo San L. Murialdo,1 Abstract: We study the so-called pinning model, which describes the behavior of a Markov chain interacting with a distinguished state. The interaction depends on an external source of randomness, called disorder, which can attract or repel the Markov chain path. We focus on the case when the disorder is heavy-tailed, with infinite mean, while the return times of the Markov chain have a stretched-exponential distribution. We prove that the set of times at which the Markov chain visits the distinguished state, suitably rescaled, converges in distribution to a limit set, which depends only on the disorder and on the interplay of the parameters. We also show that there exists a random threshold of the interaction strength, below which the limit set is trivial. As a byproduct of our techniques, we improve and complete a result of Auffinger and Louidor on the directed polymer in a random environment with heavy tailed disorder.

1 0

PhD @Lausanne: Forensic statistics
by Giacomo Aletti 04 Oct '14

04 Oct '14

https://applicationsinter.unil.ch/inter/noauth/php/Po/pooffres.php?poid=339… PhD Position Summary: The School of Criminal Justice is seeking an aspiring young scientist to start a PhD research project on probabilistic evaluation of comparative handwriting examinations using graphical models (i.e., Bayesian networks). A Swiss National Science Foundation (SNSF) Grant funds the starting phase of this PhD project during a period of 18 months. Project Summary: The primary objective of this SNSF funded research is to rely on Bayesian networks within a general methodology for structured expert knowledge elicitation and analysis in order to build diagrammatic interpretation structures that have the potential to become part of the scope of resources that forensic experts need to substantiate probabilistic evaluations and conclusions in cases involving the results of comparative handwriting examinations. The appointed PhD candidate in this project will work closely with practising forensic handwriting examiners and conduct both fundamental research on probabilistic interpretation in the context of forensic handwriting examination and in-depth case studies. The project also involves exchanges on methods and approaches with a researcher from the Institute of Evidence Law and Forensic Science of the China University of Political Science and Law, Beijing (CUPL). Application until: December 19th, 2014 -- ------------------------------- Giacomo Aletti, Associate Professor ADAMSS Centre (ex MIRIAM) Advanced Applied Mathematical and Statistical Sciences Department of Mathematics (www.matematica.unimi.it) Via Saldini, 50 20133 Milano, Italy Tel: +39-02-503.16158 Fax:+39-02-503.16090 Cell: +39-340-9739142

1 0

Fwd: Notiziario dei Seminari
by Gustavo Posta 03 Oct '14

03 Oct '14

Begin forwarded message: > ====================================================================== > > DIPARTIMENTO DI MATEMATICA > > UNIVERSITA' DI ROMA "LA SAPIENZA" > > Settimana dal 6 al 12 ottobre 2014 > > ====================================================================== > > > Lunedi' 6 ottobre 2014 > > Ore 16:30, Aula C > Seminario di Probabilità e Fisica Statistica > Marco Ribezzi Crivellari (Universita' di Barcellona) > Experimental measurements of entropy production at the nano-scale: an > application for the 'fluctuation theorems' > > The study of non-equilibrium systems has led to several mathematically > rigorous and general results on the statistics of entropy production > in non-equilibrium systems. These results are generally known under > the name of 'fluctuation theorems' and include the Gallavotti-Cohen > theorem or the Jarzynski equality. My research focuses on performing > experiments in which such results can be tested in real physical > systems. I am interested in assessing their range of validity but even > more interested in exploiting them to develop new measurement > techniques. I will present some recent experiments, in which focused > laser beams (optical tweezers) are used to perform thermodynamic > transformations on single DNA molecules. As a first example I will > show how to use fluctuation theorems to measure the free energy change > across the transformation. As a second example I will discuss how, in > specific cases, fluctuation theorems can be used to measure the full > entropy production in a nano-scale system starting from a partial > measurement through what we call an 'inference' procedure. This last > example provides a new and general application of fluctuation theorems > which we are only beginning to explore.

1 0

BISP9 - 9th Bayesian Inference in Stochastic Processes Workshop
by fabrizio＠mi.imati.cnr.it 02 Oct '14

02 Oct '14

We are glad to announce the 9th workshop on Bayesian Inference in Stochastic Processes (BISP9) which will take place at Point Hotel - Taksim in Istanbul, Turkey, on June 14-16, 2015. The conference web page is http://www.maoner.com/bisp9.htm We are currently working on the programme: confirmed speakers are Sylvia Fruhwirth-Schnatter, Antonio Pievatolo, Raquel Prado and Judith Rousseau. After a reception on June 14th, there will be two full days of talks by (senior and junior) invited speakers and contributors, ending with a dinner cruise on Bosphorus on June, 16th. Interested people can stay in Istanbul also in the next few days since there will be, on June, 17th - 19th, GDRR 2015 (4th Symposium on Games and Decisions in Reliability and Risk), with details at http://www.maoner.com/GDRR-2015.htm The workshop is organised by Yeditepe University, in cooperation with CNR IMATI and George Washington University. Details on past BISP workshops can be found at http://www.mi.imati.cnr.it/conferences/BISP8/ People interested in contributing papers should send a title and an abstract by e-mail to maoner(a)yeditepe.edu.tr, before November, 30th, 2014. Poster session is planned only if there will be a very large number of submissions. Instructions on abstract submission are available at http://www.maoner.com/bisp9_submission.htm Decision on acceptance (either as talk or poster) will be notified by December, 15th, 2014. Best regards M. Atilla Oner and Fabrizio Ruggeri Chairs, BISP9 Organising and Scientific Committees -- Fabrizio Ruggeri fabrizio AT mi.imati.cnr.it CNR IMATI tel +39 0223699532 Via Bassini 15 fax +39 0223699538 I-20133 Milano (Italy) www.mi.imati.cnr.it/~fabrizio

1 0

Jump to page:

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

Random