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December 15, 2014
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Date:23TuesdayDecember 2014Lecture
Classification of spherical quadrilaterals
More information Time 13:00 - 13:00Lecturer A. Eremenko and A. Gabrielov
Purdue UniversityOrganizer Faculty of Mathematics and Computer ScienceContact -
Date:23TuesdayDecember 2014Lecture
"Conformational changes in GPCR signalling"
More information Time 14:00 - 15:00Location Helen and Milton A. Kimmelman BuildingLecturer Dr. Dmitry Veprintsev
Laboratory of Biomolecular Research Paul Scherrer Institut SwitzerlandOrganizer Department of Chemical and Structural BiologyContact -
Date:24WednesdayDecember 2014Lecture
To be announced
More information Time 10:00 - 11:00Location Gerhard M.J. Schmidt Lecture HallOrganizer Department of Biomolecular SciencesContact -
Date:24WednesdayDecember 2014Lecture
Forum on Mathematical Principles in Biology
More information Time 10:00 - 11:00Location Arthur and Rochelle Belfer Building for Biomedical ResearchLecturer Prof. Ariel Amir
Dept of Applied Mathematics and Applied Physics, Harvard UniversityOrganizer Department of Molecular Cell BiologyContact -
Date:24WednesdayDecember 2014Lecture
X-ray transients: hypo- or hyper-luminous?
More information Time 11:15 - 12:00Location Nella and Leon Benoziyo Physics BuildingLecturer Jean-Pierre Lasota Organizer Nella and Leon Benoziyo Center for AstrophysicsContact Abstract Show full text abstract about The thermal-viscous disc instability model gives a plausible...» The thermal-viscous disc instability model gives a plausible explanation of outbursts of soft X-ray transient systems if self-irradiation of the disc is included. After a short introduction of the model I will show that there is a simple relation between the peak luminosity (at the start of an outburst) and the decay timescale. This relation can be used to place constraints on systems assumed to undergo disc instabilities. The observable X-ray populations of elliptical galaxies must consist of long-lived transients, as deduced on different grounds by Piro & Bildsten (2001). The strongly-varying X-ray source HLX-1 in the galaxy ESO 243-49 can be modelled as a disc instability of a highly super-Eddington stellar-mass binary similar to SS433. A fit to the disc instability picture is not possible for an intermediate-mass black hole model for HLX-1. Other, recently identified, super-Eddington ULXs might be subject to disk instability. -
Date:24WednesdayDecember 2014Lecture
Scalable algorithms for translating natural language to logical form
More information Time 11:15 - 11:15Location Jacob Ziskind BuildingLecturer Jonathan Berant
Stanford UniversityOrganizer Faculty of Mathematics and Computer ScienceContact -
Date:24WednesdayDecember 2014Lecture
Genetic and Epigenetic Determinants of Chronic Lymphocytic Leukemia Evolution
More information Time 14:00 - 14:00Location Max and Lillian Candiotty BuildingLecturer Dr.Dan-Avi Landau
Dana Farber Cancer Institute & Broad Institute of Harvard and MIT, U.S.A.Organizer Department of Immunology and Regenerative BiologyContact -
Date:25ThursdayDecember 2014Lecture
Magnetic Resonance Seminar
More information Time 09:30 - 09:30Title Quantitative analysis of advanced MRI methods for classification and follow up of patients with brain lesionsLocation Gerhard M.J. Schmidt Lecture HallLecturer Dr. Dafna Ben Bashat
Dept. of Radiology, Sackler Faculty of Medicine Functional Brain Center, Tel Aviv Sourasky Medical CenterOrganizer Department of Chemical and Biological PhysicsContact Abstract Show full text abstract about In recent years, technical and methodological advances conce...» In recent years, technical and methodological advances concerning medical applications of magnetic resonance (MR) have allowed the acquisition of multiple types of data, beyond pure anatomy, in a single examination, including diffusion imaging, MR spectroscopy, perfusion, permeability imaging and functional MRI. Integrating the various MR methods along with multiparametric analysis, can improve patient evaluation, quantitative tissue classification and characterization, as well as therapy response assessment.
Accurate measurements of brain structures and lesion volumes can be performed using manual or semi-manual methods. Analysis of multiparametric data, including advanced imaging methods, requires the use of advanced analysis tools. Multiparametric analysis of MRI data includes supervised and un-supervised methods, and provides information that often requires validation.
In this talk, I will present state of the art methods used in MRI data acquisition and analysis for quantitative assessment and follow-up of brain lesions; give a brief description of the main methods used for advanced and multi-parametric image analysis; highlight controversial issues regarding the use and analysis of these methods and their potential use in clinical practice.
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Date:25ThursdayDecember 2014Lecture
Academic recruitments: Considerations and best practices addressing unconscious bias
More information Time 10:00 - 10:00Location Goldwurm BuildingLecturer Dr. Yael Levitte Contact -
Date:25ThursdayDecember 2014Lecture
Regularity theory for random elliptic equations
More information Time 11:05 - 11:05Location Jacob Ziskind BuildingLecturer Scott Armstrong
University of Paris-DauphineOrganizer Faculty of Mathematics and Computer ScienceContact -
Date:25ThursdayDecember 2014Colloquia
Supernova: not what you thought - The majority of type
More information Time 11:15 - 12:30Location Edna and K.B. Weissman Building of Physical SciencesLecturer Prof. Doron Kushnir
IASOrganizer Faculty of PhysicsContact Abstract Show full text abstract about Type Ia: I will show that the majority of type Ia SNe may be...» Type Ia: I will show that the majority of type Ia SNe may be the result of direct collisions of
typical field CO-WDs in triple systems. The supporting evidences are: 1. the rate of such
collisions may be comparable to the SNe Ia rate, 2. in this case the nuclear detonation is due to a well understood shock ignition, devoid of commonly introduced free parameters such as the deflagration velocity or transition to detonation criteria, 3. the observed range of Ni56 among
different explosions, including the tendency for faint SNe in elliptical galaxies and bright SNe in spirals, is explained as the result of the CO WDs mass range, 4. a unique feature of this model (doubly-peaked line profiles in nebular-phase spectra) has been found to be common among type Ia SNe. Core-collapse: I will demonstrate that ~10 seconds after core-collapse of a massive star, a thermonuclear explosion of the outer shells is possible for some initial density and composition profiles (assuming the neutrinos failed to explode the star). The explosion may lead to a successful supernova, as first suggested by Burbidge, Burbidge, Fowler and Hoyle (1957).
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Date:25ThursdayDecember 2014Lecture
RingIt: Ring-ordering Casual Photos of a Dynamic Event
More information Time 12:00 - 12:00Location Jacob Ziskind BuildingLecturer Hadar Elor
Tel Aviv UniversityOrganizer Faculty of Mathematics and Computer ScienceContact -
Date:25ThursdayDecember 2014Lecture
Biological and artificial curiosity:models, behaviors and robots
More information Time 12:30 - 12:30Location Gerhard M.J. Schmidt Lecture HallLecturer Dr. Goren Gordon
Personal Robots Group, Media Lab, MITOrganizer Department of Brain SciencesContact Abstract Show full text abstract about Abstract: Curiosity is one of the major human drives. Can we...» Abstract: Curiosity is one of the major human drives. Can we model curiosity in biological agents? Can we implement these models in artificial systems? What happens when a curious child meets a curious robot? In this talk I present recent work on the study of curiosity. First, studies of curiosity-driven behaviors in humans and rodents are presented, where we show that biological agents attempt to manage their novelty in a structured manner. A model that captures this structure is presented, wherein emergent exploration behaviors are balanced with novelty-based withdrawal-like actions. The model, which has only a few free parameters, reproduce, explain and predict many observed behaviors in mice and rats. A similar model is implemented in curious robots that learn about their own body and people interacting with them, resulting in emergent behaviors that have similar characteristics to infants’ behaviors. Finally, results from a recent study show that children’s curiosity can increase after interacting with a curious social robot. Future work on studies of infants’, children’s and adults’ curiosity-driven behavior as well as the development of autonomous curious robots, concludes the talk. -
Date:28SundayDecember 2014Lecture
Magnetic Resonance and Ph.D student seminar
More information Time 10:00 - 10:00Title The Vasculature of PregnancyLocation Gerhard M.J. Schmidt Lecture HallLecturer Reut Avni
Under the supervision of Prof Michal Neeman Department of Biological Regulation Weizmann Institute of ScienceOrganizer Department of Chemical and Biological PhysicsContact -
Date:28SundayDecember 2014Lecture
The Modern and LGM hydrological cycles of the Eastern Mediterranean and the Levant from a water isotope perspective
More information Time 11:00 - 11:00Location Sussman Family Building for Environmental SciencesLecturer Yoni Goldsmith
Lamont-Doherty Earth Observatory Columbia University, Earth InstituteOrganizer Department of Earth and Planetary SciencesContact Abstract Show full text abstract about Long-term averages of the isotopic composition of precipitat...» Long-term averages of the isotopic composition of precipitation from 15 sites in Israel and reanalyzed vapor data from the Mediterranean are used to assess the full modern hydrological cycle of sea surface water–vapor–distillation–precipitation–evaporation in the E. Mediterranean and the Levant. The results combined with modeling efforts show that once the source effect is accounted for, the long-term isotopic composition of precipitation in Israel is governed primarily by distillation that is a function of the sea-land temperature gradient. These processes govern the amount, altitude and the distance from the ocean effects.
Based on our understanding of the modern processes, we modeled the distillation as a function of relative humidity during the LGM using d18O values from Soreq Cave stalagmites and Mediterranean foraminifera. Our model suggests a possible reconciliation of the conundrum between the Lake Lisan high-stand during the LGM and the similar offset between the d18O from Soreq Cave stalagmites and Mediterranean foraminifera in modern and LGM times.
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Date:28SundayDecember 2014Lecture
Mechanics and dynamics of lipid bilayer membranes: extracting bending moduli from molecular dynamics simulations and modeling transport in the membrane plane
More information Time 11:00 - 11:00Location Perlman Chemical Sciences BuildingLecturer Prof. Frank Brown
Department of Chemistry and Biochemistry , University of California at Santa BarbaraOrganizer Department of Molecular Chemistry and Materials ScienceContact -
Date:28SundayDecember 2014Lecture
Tomato trichome specialized metabolism: evolutionary diversity and in vitro reconstruction
More information Time 11:15 - 11:15Location Ullmann Building of Life SciencesLecturer Prof. Prof. Robert L. (Rob) Last
Department of Biochemistry and Molecular Biology, Michigan State University, USAOrganizer Department of Plant and Environmental SciencesContact -
Date:28SundayDecember 2014Lecture
A paradigm shift in understanding Gamma-ray bursts
More information Time 12:00 - 13:30Location Nella and Leon Benoziyo Physics BuildingLecturer Asaf Pe'er Organizer Nella and Leon Benoziyo Center for AstrophysicsContact Abstract Show full text abstract about Since the launch of Fermi in 2008, a prime focus had been gi...» Since the launch of Fermi in 2008, a prime focus had been given to
understanding the physical origin of the prompt emission from
gamma-ray bursts (GRBs), which holds the key to understanding of their
nature. While the problem is still far from being solved, in recent
years we are witnessing a "paradigm shift", as the existence of a
thermal component (on top the non-thermal emission) becomes evident.
I will describe some latest results and the recent theoretical
breakthroughs in understanding how the naively expected "Planck"
spectrum can be broadened and resemble the observed spectra. I will
discuss some novel effects and theoretical ideas relevant for the
study of many astronomical objects. As a few examples, I will show how
emission from the photosphere can be observed to have high degree of
polarization; how it can be used to infer the jet magnetization; and
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Date:28SundayDecember 2014Lecture
To be announced
More information Time 13:00 - 13:00Location Arthur and Rochelle Belfer Building for Biomedical ResearchLecturer Dr. Tslil Ast
Maya Schuldiner's group, Dept. of Molecular Genetics,WISOrganizer Department of Molecular GeneticsContact -
Date:29MondayDecember 2014Lecture
Auto-immune disease, viral infection, chaos and the "butterfly effect"
More information Time 11:30 - 11:30Location Wolfson Building for Biological ResearchLecturer Prof. David Dreyfus
Associate Clinical Professor, Pediatrics and Allergy/Clinical Immunology, Yale School of Medicine, New Haven CTOrganizer Department of Systems ImmunologyContact