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October 01, 2009
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Date:23MondayMay 2011Lecture
Bacteria Collective Behaviors and Decision Making
More information Time 14:15 - 14:15Location Edna and K.B. Weissman Building of Physical SciencesLecturer Eshel Ben-Jacob
Tel-Aviv UniversityOrganizer Department of Physics of Complex SystemsContact Abstract Show full text abstract about Bacteria, the first and most fundamental of all organisms, l...» Bacteria, the first and most fundamental of all organisms, lead rich social life in complex hierarchical communities. Collectively, they gather information from the environment, learn from past experience, and take decisions. To solve the new encountered problems they first assess the problem via collective sensing, recall stored information of past experience and then they all participate in distributed information processing. The billions of bacteria in the colony use sophisticated communication strategies to link the intracellular computation networks of each bacterium (including signaling pathways of billions of molecules) into a network of networks. I will then show illuminating movies of swarming intelligence of live bacteria in which they solve challenging optimization problems for collective decision making. I will explain that current game theory is too simplistic to account for bacteria's decision making and that understanding bacteria's reactions to stressful and hazardous conditions may help to understand human decision-making processes. Bacteria are simpler yet they can effectively control the individual decision process leading to group decisions for the well-being of the entire colony. -
Date:23MondayMay 2011Lecture
Clustering and Approximating High-Dimensional Streaming Data Using Coresets
More information Time 14:30 - 14:30Location Ziskind Bldg.Lecturer Dan Feldman
CaltechOrganizer Faculty of Mathematics and Computer Science -
Date:23MondayMay 2011Colloquia
An expedition into the world of atoms by aberration-corrected electron optics
More information Time 15:15 - 16:30Location Edna and K.B. Weissman Building of Physical SciencesLecturer KNUT W. URBAN
Peter Grünberg Institute & Ernst Ruska Centre for Microscopy and Spectroscopy with Electrons, Research Centre Jülich, Jülich, GermanyOrganizer Department of Particle Physics and AstrophysicsContact Abstract Show full text abstract about The realization of aberration-corrected lenses has triggered...» The realization of aberration-corrected lenses has triggered a quantum jump in electron optics. The re-cent generation of transmission electron microscopes with aberration-corrected optics allows materials science in atomic dimensions and to measure individual atomic positions with picometer precision. This fulfils an old dream of condensed matter physics to derive macroscopic materials properties directly from observations on the atomic level. However in order to realize this ultra-high resolution it has to be accepted that optics in atomic dimensions is based on quantum physics and that the term “image” looses its conventional meaning. As a consequence access to the atomic-resolution information requires the numerical inversion of the non-linear imaging process by quantum-mechanical and optical image calculations on the basis of solutions of the Dirac equation. After a brief introduction into the basics of aberration-corrected electron optics and the physics of atomic-resolution microscopy studies on ferroelectric perovskitic oxides will be presented which provided new insight into the subtle atom relaxations forming the basis for the particular electronic properties of these materials. -
Date:23MondayMay 2011Lecture
Equivalences in the generalized Kostant problem
More information Time 16:00 - 16:00Location Ziskind Bldg.Lecturer Prof. Anthony Joseph
Organizer Faculty of Mathematics and Computer Science -
Date:23MondayMay 2011Lecture
Meetings at the Frontiers of Science
More information Time 19:15 - 19:15Organizer Science for All UnitHomepage Contact -
Date:24TuesdayMay 2011Lecture
Chromatographic Techniques in the Biological Chemistry Department
More information Time 10:00 - 10:00Location Wolfson Building for Biological ResearchLecturer Dr. Daniel Tal
Department of Biological Chemistry -WISOrganizer Department of Biomolecular SciencesContact -
Date:24TuesdayMay 2011Lecture
"Integrating out geometry: Holographic Wilsonian RG and the membrane paradigm"
More information Time 10:30 - 11:30Location Neve-ShalomLecturer Prof. Hong Liu
MITOrganizer Department of Particle Physics and AstrophysicsContact -
Date:24TuesdayMay 2011Lecture
“Photoinduced functions in multicomponent molecular systems”
More information Time 11:00 - 11:00Title Department of Organic ChemistryLocation Helen and Milton A. Kimmelman BuildingLecturer Prof. Alberto Credi
Photochemical Nanosciences Laboratory, Dipartimento di Chimica “G. Ciamician”, Università degli Studi di Bologna, Bologna, ItalyOrganizer Department of Molecular Chemistry and Materials ScienceContact Abstract Show full text abstract about Light-induced processes are at the basis of fundamental natu...» Light-induced processes are at the basis of fundamental natural phenomena as well as of a variety of applications. Since the functions that can arise from the interaction between light and matter depend on the degree of complexity and organization of the receiving ‘matter’, the research on these processes has progressively moved from molecular to supramolecular (multicomponent) systems. Examples of multicomponent systems capable to perform specific functions under light stimulation (photochemical molecular devices, PMDs) have been developed, relying on processes such as photoisomerization and photoinduced electron or proton transfer.
Here I will describe a few recent examples of PMDs studied in our laboratories, designed to (i) gather, transfer and process binary information (molecular logic gates and circuits) or (ii) undergo controllable motions of some molecular components with respect to the others (molecular machines).
Apart from futuristic applications, investigations on PMDs can increase the basic understanding of a variety of processes, as well as develop reliable theoretical models. This research has also the important merit of stimulating the ingenuity of chemists, thereby instilling new life into chemical sciences.
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Date:24TuesdayMay 2011Lecture
"Higher spin theories and holography"
More information Time 11:45 - 13:00Location Neve-ShalomLecturer Dr. Simone Giombi
Perimeter InstituteOrganizer Department of Particle Physics and AstrophysicsContact -
Date:24TuesdayMay 2011Lecture
Tuning transcriptional noise by modulating promoter dynamics
More information Time 12:15 - 12:15Location Wolfson Building for Biological ResearchLecturer Maya Dadiani
from Dr. Eran Segal’s labOrganizer Department of Molecular Cell BiologyContact -
Date:24TuesdayMay 2011Lecture
REGULATION OF HIPPOCAMPAL PLASTICITY: FROM DYNAMICS OF SINGLE SYNAPSES TO ALZHEIMER’S DISEASE
More information Time 12:30 - 12:30Location Jacob Ziskind BuildingLecturer Dr. Inna Slutsky
Dept of Physiology and Pharmacology Tel Aviv UniversityOrganizer Department of Brain SciencesContact Abstract Show full text abstract about It is widely believed that memories are encoded and stored i...» It is widely believed that memories are encoded and stored in the pattern and strength of synaptic connections. Individual synapses, the elementary units of information transfer, encode and store new information in response to the environmental changes through structural and functional reorganization. The key mechanisms that normally maintain plasticity of synapses and initiate synapse loss in neurodegenerative diseases remain elusive. To target this question, we developed an integrative approach to correlate structure and function at the level of single synapses in hippocampal circuits. Utilizing FRET spectroscopy, optical imaging, electrophysiology and molecular biology we explore the casual relationship between the pattern of ongoing neuronal activity, structural rearrangements within the synaptic signaling complexes and plasticity of single synapses and whole networks. Our results suggest that ongoing background synaptic activity critically determines the number and plasticity of synapses in hippocampal circuits. -
Date:24TuesdayMay 2011Lecture
LECTURE CANCELLED:"China's climate change mitigation policies and positions"
More information Time 13:00 - 14:00Location Gerhard M.J. Schmidt Lecture HallLecturer Dr. Ying Chen
Senior Researcher, Deputy Director of Research Centre for Sustainable Development (RCSD), Chinese Academy of Social Sciences (CASS)Organizer Weizmann School of ScienceContact -
Date:24TuesdayMay 2011Lecture
A refinement of the Ray-Singer analytic torsion
More information Time 16:00 - 16:00Location Ziskind Bldg.Lecturer Maxim Braverman
Northeastern UniversityOrganizer Faculty of Mathematics and Computer Science -
Date:24TuesdayMay 2011Lecture
קפה מדע
More information Time 19:30 - 19:30Organizer Science for All UnitHomepage Contact -
Date:25WednesdayMay 2011Lecture
The Involvement of Microtubules in Neuronal Polarity and Migration Regulation: Implications for Brain Development and Human Disease
More information Time 10:00 - 10:00Location Arthur and Rochelle Belfer Building for Biomedical ResearchLecturer Prof. Orly Reiner
Dept. of Molecular Genetics, WISContact -
Date:25WednesdayMay 2011Lecture
"Using deep sequencing to inform attempts to generate C4 rice"
More information Time 10:00 - 11:00Location Ullmann Building of Life SciencesLecturer Dr. Sarah Covshoff
Department of Plant Sciences, University of CambridgeOrganizer Department of Plant and Environmental SciencesContact -
Date:25WednesdayMay 2011Cultural Events
The movie : Taking Root
More information Time 15:00 - 17:30Location Wolfson Building for Biological ResearchLecturer Natalia Gutkowski Homepage Contact -
Date:26ThursdayMay 2011Lecture
MAGNETIC RESONANCE SEMINAR
More information Time 09:00 - 09:00Location Gerhard M.J. Schmidt Lecture HallLecturer Prof. John H. Enemark
Department of Chemistry and Biochemistry University of Arizona, Tucson, Arizona, USAOrganizer Department of Chemical and Biological PhysicsContact -
Date:26ThursdayMay 2011Lecture
"Teaching old metals new tricks: stable Pd(III) complexes for stoichiometric and catalytic transformations"
More information Time 10:00 - 10:00Title Organic Chemistry - special seminarLocation Helen and Milton A. Kimmelman BuildingLecturer Dr. Julia Khusnutdinova
the Department of Chemistry at Washington University.Organizer Department of Molecular Chemistry and Materials ScienceContact -
Date:26ThursdayMay 2011Lecture
Critical slowdown for the Ising model on the two-dimensional lattice
More information Time 11:00 - 11:00Location Ziskind Bldg.Lecturer Eyal Lubetzky
Microsoft ResearchOrganizer Faculty of Mathematics and Computer Science