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December 11, 2014
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Date:20SaturdayDecember 2014Cultural Events
Ori Hizkiah - Stand up show
More information Time 21:00 - 22:30Location Michael Sela AuditoriumContact -
Date:21SundayDecember 2014Lecture
Plant Tissue Culture - an useful tool in advanced biotechnology
More information Time 11:15 - 11:15Location Ullmann Building of Life SciencesOrganizer Department of Plant and Environmental SciencesContact -
Date:22MondayDecember 2014Conference
Conference for Physics teachers
More information Time All dayLocation The David Lopatie Conference CentreChairperson Yocheved BrestelContact -
Date:22MondayDecember 2014Lecture
Probing general relativity, alternative theories of gravity, and relativistic geodesy with atomic clocks
More information Time 13:15 - 14:00Location Edna and K.B. Weissman Building of Physical SciencesLecturer Ruxandra Bondarescu Organizer Nella and Leon Benoziyo Center for AstrophysicsContact Abstract Show full text abstract about I will discuss the applicability of atomic clocks to test ge...» I will discuss the applicability of atomic clocks to test general relativity and alternative theories of gravity for planned missions such as the Gravitational Redshift Explorer (GRESE). We assume that the spacecraft that orbits the Earth is tracked using the observed tick rate of its clock, which is then compared to the tick rate of a local clock on the ground. The spacecraft's reconstructed 4-D trajectory can reveal the nature of gravitational perturbations in the gravitational field of the Earth testing multiple relativistic effects such as frame dragging and shapiro time delay, and potentially differentiating between different theories of gravity via Parametrized Post-Newtonian Parameters (PPN). On the ground, clocks along with the most recent optical fiber technology measure ground uplift at a precision that competes with existent technology (e.g, GPS, gravimeters). This monitoring has a plethora of applications, which include closer monitoring of the solid Earth tide in areas where hydraulic fracturing is performed, and potentially better monitoring of areas with high seismic and volcanic activity.
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Date:22MondayDecember 2014Lecture
Shaping the blood: Lessons from Chromatin and Single cell RNA-SEQ Dynamics
More information Time 14:00 - 14:00Location Max and Lillian Candiotty BuildingLecturer Prof. Ido Amit Organizer Department of Immunology and Regenerative BiologyContact -
Date:22MondayDecember 2014Lecture
Non-dissipative shapable sheet
More information Time 14:15 - 14:15Location Edna and K.B. Weissman Building of Physical SciencesLecturer Naomi Oppenheimer
University of ChicagoOrganizer Department of Physics of Complex SystemsContact Abstract Show full text abstract about A sheet of paper that has been crumpled and flattened retain...» A sheet of paper that has been crumpled and flattened retains some amount of shapability that a bare, uncrumpled, sheet does not have: when deformed by external forces, it retains the deformed shape after the forces are removed. Using a frustrated two dimensional lattice of springs, we show that such shapability can be attained in a non-dissipative system. Numerical investigations suggest an extensive number of bistable energy minima using several variants of this scheme. The numerical sheet can be bent into a nearly-closed cylinder that holds its shape. We verify that the deformed shape is locally stable and compare its bending modulus in the deformed state with that in the initial flat state. We investigate the threshold for non-elastic deformation using various kinds of forcing. -
Date:22MondayDecember 2014Lecture
The Endocrinization of Biology and Medicine: A quartet of revolutions in our time
More information Time 15:00 - 16:00Location Arthur and Rochelle Belfer Building for Biomedical ResearchLecturer Prof. Jesse Roth
The Feinstein Institute for Medical Research, USAContact -
Date:23TuesdayDecember 2014Lecture
LS SPECIAL LECTURE
More information Time 11:00 - 11:00Location Dolfi and Lola Ebner AuditoriumLecturer Randy Levinson
Senior editor in the journal Nature MedicineContact -
Date:23TuesdayDecember 2014Lecture
Dynamics of the Madden-Julian oscillation
More information Time 11:00 - 11:00Location Sussman Family Building for Environmental SciencesLecturer Adam Sobel
Department of Earth and Environmental Sciences Columbia UniversityOrganizer Department of Earth and Planetary SciencesContact Abstract Show full text abstract about The Madden-Julian oscillation (MJO) is the dominant mode of ...» The Madden-Julian oscillation (MJO) is the dominant mode of variability in the tropics on
the intraseasonal time scale (say, 20-90 day periods) and one of the most important
coherent, quasi-periodic modes of natural variability in the global climate system altogether.
Though it was discovered over 40 years ago, we still do not understand the MJO, in the sense of
being able to state an agreed-upon, simple mathematical model that explains its basic features.
I will present evidence that the MJO is what some of us now call a "moisture mode", best
analyzed by examining the budget of moist static energy or moist entropy. I will argue that
cloud-radiative feedbacks are important to the maintenance of the MJO, while horizontal
advection of moisture is important to its eastward propagation. I will present evidence from
observations, theory, general circulation models, and cloud-resolving models to this effect.
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Date:23TuesdayDecember 2014Lecture
"A comprehensive theoretical approach to understanding the kinetic, thermodynamic and electronic aspects of a reactive interaction"
More information Time 11:00 - 12:00Location Helen and Milton A. Kimmelman BuildingLecturer Dr. Amrit Sarmah
Birla Institute of Technology & Science, PilaniOrganizer Department of Molecular Chemistry and Materials ScienceContact -
Date:23TuesdayDecember 2014Lecture
Phylogenomic transduction networks reveal genetic barriers for phage-mediated gene transfer during microbial evolution
More information Time 11:15 - 11:15Location Ullmann Building of Life SciencesLecturer Dr. Tal Dagan
Genomic Microbiology Group, Institute of Microbiology, Christian-Albrechts-University Kiel, GermanyOrganizer Department of Plant and Environmental SciencesContact -
Date:23TuesdayDecember 2014Lecture
From ants to colonies: Individual variation in collective behavior
More information Time 13:00 - 13:00Location Dannie N. Heineman LaboratoryLecturer Dr. Noa Pinter-Wollman
BioCircuits Institute UC San DiegoOrganizer Clore Center for Biological PhysicsContact Abstract Show full text abstract about Evolution acts on individual variation. Complex biological s...» Evolution acts on individual variation. Complex biological systems, such as colonies of social insects, are aggregates of multiple agents working together towards collective, higher-order goals, producing emergent collective properties on which natural selection acts. There is no central control dictating the activities of members in the assembly. Instead, agents use local signals that determine their behavior and are received through an intricate interaction network resulting in collective phenotypes. I examine how individual variation among workers in harvester ant colonies affects the collective behavior of the colony, producing individual variation among colonies. I will present work on how the structure of the interaction network among ant workers affects the foraging regulation of colonies of the red harvester ant, Pogonmyrmex barbatus. In addition, I will discuss the causes and consequences of individual variation in the collective behavior of colonies of the black harvester ant, Messor andrei. In both cases, variation at small local scales translates into variation at the system level, creating a behaviorally diverse population.
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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.