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  • Date:17SundayDecember 2017

    Screening in Concentrated Electrolyte Solutions: A Few Recent Thoughts

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    Time
    11:00 - 12:00
    Location
    Perlman Chemical Sciences Building
    Room 404
    Lecturer
    Prof. Philip Pincus
    University of California at Santa Barbara
    Organizer
    Department of Materials and Interfaces
    Contact
    AbstractShow full text abstract about Surface force experiments by the Perkin group suggest that ...»
    Surface force experiments by the Perkin group suggest that the Debye screening length in aqueous solutions is not monotonic in electrolyte concentration. I shall review the fundamentals of Debye-Huckel theory and discuss some possible scenarios to understand the experimental observations.
    Lecture
  • Date:18MondayDecember 2017

    Systematic dissection of dynamic post-transcriptional RNA regulation

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    Time
    13:00 - 14:00
    Location
    Wolfson Building for Biological Research
    Auditorium
    Lecturer
    Dr. Michal Rabani
    Department of Molecular and Cellular Biology, Harvard University
    Organizer
    Department of Molecular Cell Biology
    Contact
    Lecture
  • Date:18MondayDecember 2017

    Unexpected Adventures with Human Endogenous Retroviruses and Centromeres

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    Time
    14:00
    Location
    Arthur and Rochelle Belfer Building for Biomedical Research
    Botnar Auditorium
    Lecturer
    Prof. David Markovitz
    Organizer
    Department of Molecular Genetics
    Contact
    Lecture
  • Date:18MondayDecember 2017

    Turbulence in a Localized Puff in a Pipe

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    Time
    14:15
    Location
    Edna and K.B. Weissman Building of Physical Sciences
    Drory Auditorium
    Lecturer
    Prof. Alex Yakhot
    Department of Mechanical Engineering Ben-Gurion University
    Organizer
    Department of Physics of Complex Systems
    Contact
    AbstractShow full text abstract about We have performed direct numerical simulations of transient ...»
    We have performed direct numerical simulations of transient turbulence in pipe flow for Re=2,250 which is established as a threshold of an equilibrium puff. We investigate the structure of an individual puff by considering three-dimensional snapshots across a long time-period. To assimilate the velocity data, we apply a conditional sampling based on the location of the maximum energy of the transverse (turbulent) motion. Specifically, at each time instance, we follow a turbulent puff by a three-dimensional moving-window centered at that location. We collected a snapshot-ensemble of the velocity fields acquired over 10,000 time instances (snapshots) inside the moving-window. The considered fow is intermittent and transitional. The velocity field inside the puff shows the dynamics of a developing turbulence. The localized puff is about of 12-15 pipe diameters long with almost laminar trailing and leading edges. In the puff core, despite the low Reynolds number, along the moving-window, it takes the downstream short distance of several pipe diameters to form the state of developed turbulence, when the turbulence statistics becomes similar to fully-developed turbulent pipe flow; the velocity profile becomes flat in the pipe core and logarithmic near the wall. It is shown that this “fully-developed turbulent slot” is very narrow, about two pipe diameters; it is localized and moves with a puff.
    Lecture
  • Date:18MondayDecember 2017

    Foundations of Computer Science Seminar

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    Time
    14:30 - 16:00
    Title
    Improved Pseudorandomness for Unordered Branching Programs through Local Monotonicity
    Location
    Jacob Ziskind Building
    Room 290C
    Lecturer
    Avishay Tal
    Stanford University
    Organizer
    Faculty of Mathematics and Computer Science, Department of Computer Science and Applied Mathematics, Department of Mathematics
    Contact
    Lecture
  • Date:18MondayDecember 2017

    Life Sciences Faculties' Council

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    Time
    15:00 - 18:00
    Location
    David Lopatie Conference Centre
    Kimmel Auditorium
    Contact
    Academic Events
  • Date:19TuesdayDecember 201721ThursdayDecember 2017

    Israel-Turkey meeting on nanoscale science

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    Time
    08:00 - 08:00
    Location
    David Lopatie Conference Centre
    Kimmel Auditorium
    Chairperson
    Reshef Tenne
    Homepage
    Contact
    Conference
  • Date:19TuesdayDecember 2017

    Frontiers in Systems Biology: Prof. Mihaela Zavolan

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    Time
    10:00 - 11:00
    Title
    Modulating Zavolan
    Location
    Arthur and Rochelle Belfer Building for Biomedical Research
    Botnar Auditorium
    Lecturer
    Prof. Mihaela Zavolan
    Biozentrum, University of Basel, Switzerland
    Organizer
    The Azrieli Institute for Systems Biology
    Contact
    AbstractShow full text abstract about In yeast, the knock out of individual ribosomal protein (RP)...»
    In yeast, the knock out of individual ribosomal protein (RP) genes
    leads to a wide range of life span phenotypes, some mutants having
    significantly increased, other significantly decreased life span. In
    this talk I would like to present our efforts in characterizing the
    regulation of mRNA translation in relation to cellular states, from
    yeast to man. I will describe our work on inferring determinants of
    protein synthesis rates in yeast, where we found that the Gcn4
    transcription factor, which is induced in many conditions that enhance
    yeast lifespan (RP gene knockout, calorie restriction, mTOR
    inhibition) not only activates transcription of amino acid
    biosynthesis genes, but also represses protein biosynthesis. How much
    variation in RP expression is expected in human tissues has been
    largely unknown, but RP gene mutations have been described in
    association with hematological disorders. Through a comprehensive
    analysis of human RP mRNAs expression pattern across 28 tissues, over
    300 primary cells and 16 tumor types, we identified many RPs which
    exhibit tissue-specific expression. In the hematopoietic system, a
    small number of RP genes, possible regulated by transcription factors
    with tissue-specific expression, unequivocally discriminate cells of distinct
    lineages and developmental stages. Different cancer types also show
    dysregulated expression of individual RPs, some RPs having a relative
    increase and other decrease in expression. Finally, I will discuss our efforts
    in mapping sites of snoRNA-guided RNA modifications.
    Lecture
  • Date:19TuesdayDecember 2017

    The control on Phosphatidylserine exposure during axonal degeneration

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    Time
    10:00 - 10:30
    Location
    Nella and Leon Benoziyo Building for Biological Sciences
    Auditorium
    Lecturer
    Dr. Vered Shacham
    Members - Dept. of Biomolecular Sciences-WIS
    Organizer
    Department of Biomolecular Sciences
    Contact
    AbstractShow full text abstract about During developmental pruning or in response to injury, axona...»
    During developmental pruning or in response to injury, axonal remnants of degenerated axons are engulfed by local or professional phagocytes. While several engulfment receptors have been implicated in the recognition of axon remnants, the signal that marks degenerating axons for phagocytosis, as well as the intrinsic mechanism that controls its exposure, are poorly understood. We used a series of in vitro assays to show that Phosphatidylserine (PS), a known “eat me” signal, is exposed on axons undergoing pruning or Wallerian degeneration. Importantly, we demonstrate that PS exposure is spatially controlled on sub-axonal segments undergoing degeneration and masking PS hinders the engulfment of axonal debris. Our results also show that PS exposure is regulated by the upstream activators of axonal pruning and Wallerian degeneration. However, our investigation of signaling further downstream revealed divergence between axon degeneration and PS exposure. Overall, our results suggest that the levels of PS on the outer axonal membrane can be dissociated from the degeneration process and that PS serves as an axonal “eat me” signal for engulfment.
    Lecture
  • Date:19TuesdayDecember 2017

    T-cell immune suppression by the cytoplasmic tail of the HIV gp41 fusion protein

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    Time
    10:30 - 11:00
    Location
    Nella and Leon Benoziyo Building for Biological Sciences
    Auditorium
    Lecturer
    Yoel A. Klug
    Members - Dept. of Biomolecular Sciences-WIS
    Organizer
    Department of Biomolecular Sciences
    Contact
    AbstractShow full text abstract about HIV enters its host cells by membrane fusion, initiated by t...»
    HIV enters its host cells by membrane fusion, initiated by the gp41 subunit of its envelope protein. In addition, gp41 has been shown to prevent T-cell activation. This is suggested to occur during the membrane fusion process and is attributed to various membrane binding regions of gp41. Although extensively studied, the cytosolic region of gp41, termed the cytoplasmic tail (CT), has not been examined in the context of immune suppression. Here we investigated whether the CT inhibits T-cell activation by utilizing gp41 derived peptides and full gp41 constructs expressed in human T-cells. We found that a conserved region of the CT specifically inhibits T-cell activation through a unique inhibitory mechanism able to take place post membrane fusion.
    Lecture
  • Date:19TuesdayDecember 2017

    Algebraic Geometry and Representation Theory Seminar

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    Time
    11:15 - 12:30
    Title
    L-function of cuspidal representations of G_2 and their poles
    Location
    Jacob Ziskind Building
    Room 290C
    Lecturer
    Avner Segal
    University of British Columbia
    Organizer
    Faculty of Mathematics and Computer Science, Department of Computer Science and Applied Mathematics, Department of Mathematics
    Contact
    Lecture
  • Date:19TuesdayDecember 2017

    Bacteria and the future of agriculture: from sequence to function

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    Time
    11:30
    Location
    Nella and Leon Benoziyo Building for Biological Sciences
    Auditorium
    Lecturer
    Dr. Asaf Levy
    Microbial Program The Lawrence Berkeley National Laboratory (LBL) US DOE (Department of Energy) Joint Genome Institute managed by University of California, USA
    Organizer
    Department of Plant and Environmental Sciences
    Contact
    DetailsShow full text description of Host: Dr. Assaf Gal...»
    Host: Dr. Assaf Gal
    Lecture
  • Date:19TuesdayDecember 2017

    "How changes to the cellular environment modulate protein structure, function, and interaction"

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    Time
    14:00 - 15:00
    Location
    Helen and Milton A. Kimmelman Building
    Dov Elad Room
    Lecturer
    Dr. Shahar Sukenik
    University of Illinois
    Organizer
    Department of Structural Biology
    Contact
    Lecture
  • Date:20WednesdayDecember 2017

    Developmental Club Series 2017-2018

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    Time
    10:00 - 11:00
    Title
    "How a key interface between the brain’s neuro-hormonal and vascular systems is assembled"
    Location
    Arthur and Rochelle Belfer Building for Biomedical Research
    Botnar Auditorium
    Lecturer
    Gil Levkowitz
    Organizer
    Department of Molecular Genetics
    Contact
    Lecture
  • Date:20WednesdayDecember 2017

    Algebraic Geometry and Representation Theory Seminar

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    Time
    11:15 - 12:30
    Title
    A Bavula conjecture
    Location
    Jacob Ziskind Building
    Room 290C
    Lecturer
    Lenny Makar-Limanov
    Wayne University
    Organizer
    Faculty of Mathematics and Computer Science, Department of Computer Science and Applied Mathematics, Department of Mathematics
    Contact
    Lecture
  • Date:21ThursdayDecember 2017

    The Dipole Polarizability of a Water Molecule in the Condensed Phase

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    Time
    11:00 - 12:00
    Location
    Perlman Chemical Sciences Building
    Room 404
    Lecturer
    Prof. Robert DiStasio Jr.
    Dept. of Chemistry and Chemical Biology, Cornell University
    Organizer
    Department of Materials and Interfaces
    Contact
    Lecture
  • Date:21ThursdayDecember 2017

    Physics Colloquium

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    Time
    11:15 - 12:30
    Location
    Edna and K.B. Weissman Building of Physical Sciences
    Auditorium
    Lecturer
    TBA
    Organizer
    Faculty of Physics
    Contact
    DetailsShow full text description of 11:00 Coffee, Tea and more ...»
    11:00 Coffee, Tea and more
    AbstractShow full text abstract about TBA ...»
    TBA
    Colloquia
  • Date:21ThursdayDecember 2017

    "Gender in practice: the user’s guide"

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    Time
    11:30 - 13:00
    Location
    Gerhard M.J. Schmidt Lecture Hall
    Lecturer
    Dr. Zeev Lehrer
    Contact
    DetailsShow full text description of Social psychologist and sociologist , lecturer at the Gender...»
    Social psychologist and sociologist , lecturer at the Gender Studies program at Tel Aviv university and the Peres Academic Center.
    A well known expert and consultant in the field of gender in organization.
    AbstractShow full text abstract about Dr. Zeev Lehrer presents a different, practical point of vie...»
    Dr. Zeev Lehrer presents a different, practical point of view on the confluence between gender and organizations. Suspending questions of justice, responsibility and blame, Lehrer supplies simple and practical tools to manage and solve real gender problems in real life situations.
    Lecture
  • Date:21ThursdayDecember 2017

    Vision and Robotics Seminar

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    Time
    12:15 - 13:30
    Title
    “Zero-Shot” Super-Resolution using Deep Internal Learning
    Location
    Jacob Ziskind Building
    Room 1
    Lecturer
    Assaf Shocher
    Weizmann Institute
    Organizer
    Faculty of Mathematics and Computer Science, Department of Computer Science and Applied Mathematics, Department of Mathematics
    Contact
    Lecture
  • Date:24SundayDecember 2017

    From perception to action: imaging human brain function

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    Time
    08:30 - 13:30
    Location
    David Lopatie Conference Centre
    Kimmel Auditorium
    Chairperson
    Alon Chen
    Organizer
    Department of Neurobiology
    Homepage
    Contact
    Conference

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