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אפריל 29, 2015

  • Date:22ראשוןנובמבר 2015

    Chemical Physics Department Seminar

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    שעה
    11:00 - 11:00
    כותרת
    Light-matter strong coupling and potential for chemistry and biology
    מיקום
    בניין פרלמן למדעי הכימיה
    מרצהDr Atef Shalabney
    Ben Gurion University
    מארגן
    המחלקה לפיזיקה כימית וביולוגית
    צרו קשר
    תקצירShow full text abstract about When matter is placed in the confined field of electromagnet...»
    When matter is placed in the confined field of electromagnetic radiation, it can lead to modified and even new properties. This is of great interest from both the fundamental point of view as well as for many radiation engineering applications. For instance, the field confinement can lead to effects such as extraordinary optical transmission, enhanced absorption and emission of light, high-resolution spectroscopy and imaging. Under certain conditions, the light-matter interaction can become so strong that it enters the so-called strong coupling regime where new hybrid light-matter states are formed, offering a vast potential for chemistry and biology that has hardly been explored.
    In this talk, an introduction to strong coupling of optically-active substances with confined optical modes will be presented. Strong coupling of molecular vibrational transitions in the infra-red region will be particularly elaborated with new prospects to modify molecular and structural processes. The hybridization of molecular vibrational transitions by the confined electromagnetic field of an optical cavity, leading to the formation of vibro-polariton states, should have direct consequences on the properties of the material. Probing nonlinear properties of the coupled system to understand the character of the hybrid states will be addressed. In addition, new directions for exploiting strong light-matter interactions for (bio) molecular spectroscopy and other practical applications will be discussed.
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  • Date:22ראשוןנובמבר 2015

    Cryo-Scanning Transmission Electron Tomography: a new view on cells and soft matter in 3D

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    שעה
    11:00 - 12:00
    מיקום
    אולם הרצאות ע"ש גרהרד שמידט
    מרצהProf. Michael Elbaum
    Dept Materials and Interfaces, WIS
    מארגן
    המחלקה לכימיה מולקולרית ולמדע חומרים
    צרו קשר
    הרצאה
  • Date:22ראשוןנובמבר 2015

    Cost Benefit Analysis of Energy Use and Conservation: An Economic Perspective

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    שעה
    13:00 - 13:00
    מיקום
    אולם הרצאות ע"ש גרהרד שמידט
    מרצהProf. Nir Becker
    Dean, Faculty of Social and Humanities Sciences, Tel-Hai College, Upper Galilee
    מארגן
    בית הספר למחקר - מכון ויצמן למדע
    צרו קשר
    הרצאה
  • Date:22ראשוןנובמבר 2015

    The metamorphosis of the tendon-bone attachmen

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    שעה
    13:00 - 13:00
    מיקום
    בניין ארתור ורושל בלפר למחקר ביורפואי
    מרצהNeta Felsenthal
    Eli Zelzer's group, Dept. of Molecular Genetics
    מארגן
    המחלקה לגנטיקה מולקולרית
    צרו קשר
    הרצאה
  • Date:23שנינובמבר 201524שלישינובמבר 2015

    Inflammation, the bonfire from within

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    שעה
    08:00 - 18:00
    מיקום
    מרכז כנסים על-שם דויד לופאטי
    יושב ראש
    Idit Shachar
    דף בית
    צרו קשר
    כנסים
  • Date:23שנינובמבר 2015

    Architecture of metazoan promoters

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    שעה
    09:15 - 11:00
    מיקום
    בניין ארתור ורושל בלפר למחקר ביורפואי
    מרצהProf. Uwe Ohler
    Berlin Institute for Medical Systems Biology Max Delbruck Center for Molecular Medicine Humboldt University
    מארגן
    המחלקה לאימונולוגיה מערכתית
    צרו קשר
    הרצאה
  • Date:23שנינובמבר 2015

    "Optimizing protein folding with a parallel-processing iterative annealing machine"

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    שעה
    11:00 - 12:30
    מיקום
    אולם הרצאות ע"ש גרהרד שמידט
    מרצהProf. George Lorimer
    Department of Chemistry & Biochemistry, University of Maryland
    מארגן
    הפקולטה לכימיה
    צרו קשר
    סימפוזיונים
  • Date:23שנינובמבר 2015

    2D Coulomb gas on a curved surface

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    שעה
    14:15 - 14:15
    מיקום
    מעבדה על-שם דני נ. היינמן
    מרצהPavel Wiegmann
    Pavel Wiegmann University of Chicago
    מארגן
    המחלקה לפיזיקה של מערכות מורכבות
    צרו קשר
    תקצירShow full text abstract about 2D Coulomb gas is a celebrated model of statistical mechanic...»
    2D Coulomb gas is a celebrated model of statistical mechanics with numerous application. Among applications are random matrix models, superfluid flow, quantum Hall effect, etc. Important properties of the model are revealed if the surface is curved. Recently a method was developed to generate the expansion in gradients of curvature of the surface.

    Based on T. Can, M. Laskin and P. Wiegmann, Annals of Physics, 362, 752-794 (2015)
    הרצאה
  • Date:23שנינובמבר 2015

    Measurement of the charged-pion polarizability at CERN COMPASS

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    שעה
    15:00 - 15:45
    מיקום
    Tel Aviv University campus
    מרצהMurray Moinester
    TAU
    מארגן
    המחלקה לפיזיקה של חלקיקים ואסטרופיזיקה
    צרו קשר
    תקצירShow full text abstract about Abstract: The pion polarizability is of fundamental interes...»
    Abstract:
    The pion polarizability is of fundamental interest in the low-energy sector of quantum chromodynamics. It is directly linked to the quark-gluon substructure and dynamics of the pion, the lightest bound system of the strong interaction. For more than a decade, COMPASS has been tackling the measurement of the electromagnetic polarizability of the charged pion, which describes the stiffness of the pion against deformation in electromagnetic fields. Previous experiments date back to the 1980's in Serpheukhov (Russia), where the Primakoff method for realizing interactions of charged pions with quasi-real photons was first employed. Later, other measurements based on photon-nucleon and photon-photon collisions were also carried out at different laboratories.
    The COMPASS measurement demonstrates that the charged-pion polarizability is significantly smaller than the previous results, roughly by a factor two, with the smallest uncertainties realized so far.

    הרצאה
  • Date:23שנינובמבר 2015

    The Problem of radiation-reaction

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    שעה
    16:15 - 17:00
    מיקום
    Tel Aviv University campus
    מרצהYaron Hadad
    TAU
    מארגן
    המחלקה לפיזיקה של חלקיקים ואסטרופיזיקה
    צרו קשר
    תקצירShow full text abstract about The problem of radiation-reaction plagued classical electrom...»
    The problem of radiation-reaction plagued classical electromagnetism since it was introduced by Maxwell in 1861. Radiation-reaction is the recoil force exerted on an accelerating charge by its own radiation field.
    In the last century radiation-reaction resisted more than a dozen of attempts on a solution, most notably by Dirac, Landau & Lifshitz.

    In this talk, I will present a historical account of the problem of radiation-reaction, both in the context of classical and quantum electrodynamics. I will also discuss how radiation-reaction can finally be put to an experimental test using high intensity lasers.
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  • Date:24שלישינובמבר 2015

    Mechanisms of functional reprogramming in the tumor microenvironment

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    שעה
    10:00 - 11:00
    מיקום
    בניין וולפסון למחקר ביולוגי
    מרצהProf. Ruth Scherz-Shouval
    Dept. of Biological Chemistry-WIS
    מארגן
    המחלקה למדעים ביומולקולריים
    צרו קשר
    תקצירShow full text abstract about For tumors to expand, metastasize, and evade immune surveill...»
    For tumors to expand, metastasize, and evade immune surveillance, genetically transformed cancer cells must recruit non-malignant cells, including macrophages, fibroblasts and endothelial cells. These cells, collectively termed the tumor microenvironment, are reprogrammed to support the tumor at the expense of its host. Our group aims to elucidate the mechanisms by which tumors reprogram their local environments. Our hypothesis is that cancer cells hijack normal cytoprotective stress responses, and subvert them to enable stromal reprogramming. In my talk, I will discuss the role of Heat-shock Factor 1 (HSF1), master regulator of the heat-shock response, in this process. Across a broad range of human cancers, HSF1 is activated in cancer-associated fibroblasts (CAFs), where it drives a transcriptional program that supports the malignant potential of adjacent cancer cells. In early stage breast and lung cancer, high stromal HSF1 activation is strongly associated with poor patient outcome. Thus, tumors co-opt the ancient survival functions of HSF1 to orchestrate malignancy, with far-reaching therapeutic implications.
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  • Date:24שלישינובמבר 2015

    (Computational) genomics of post-transcriptional regulation: from RNA-binding proteins to translation

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    שעה
    10:00 - 11:00
    מיקום
    בניין ארתור ורושל בלפר למחקר ביורפואי
    מרצהProf. Uwe Ohler
    Berlin Institute for Medical Systems Biology Max Delbruck Center for Molecular Medicine Humboldt University
    מארגן
    המחלקה לאימונולוגיה מערכתית
    צרו קשר
    הרצאה
  • Date:24שלישינובמבר 2015

    THERMALIZATION AND CHAOS IN MATRIX MODELS

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    שעה
    10:30 - 10:30
    מיקום
    Neve Shalom
    מרצהVLADIMIR ROSENHAUS
    UCSB
    מארגן
    המחלקה לפיזיקה של חלקיקים ואסטרופיזיקה
    צרו קשר
    תקצירShow full text abstract about Recently, Kitaev has proposed a variant of the Sachdev-Ye mo...»
    Recently, Kitaev has proposed a variant of the Sachdev-Ye model as a solvable model of holography. The SYK model correctly reproduces the Lyapunov exponent of a black hole, as computed from an out-of-time order 4-pt function. We will revisit some older matrix models, such as the one of Iizuka, Okuda, and Polchinski, and study the 4-pt function..
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  • Date:24שלישינובמבר 2015

    "Small Molecule Activation by Redox-Modulation in Multimetallic Iron Complexes”

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    שעה
    11:00 - 11:00
    מיקום
    בניין הלן ומילטון קימלמן
    מרצהDr. Graham de Ruiter
    California Institute of Technology
    מארגן
    המחלקה לכימיה מולקולרית ולמדע חומרים
    צרו קשר
    הרצאה
  • Date:24שלישינובמבר 2015

    “6D (1, 0) SCFTS AND THEIR COMPACTIFICATIONS: A HOLOGRAPHIC APPROACH”

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    שעה
    12:00 - 12:00
    מיקום
    Neve Shalom
    מרצהAchilleas Passias
    MILANO
    מארגן
    המחלקה לפיזיקה של חלקיקים ואסטרופיזיקה
    צרו קשר
    תקצירShow full text abstract about We discuss the AdS7/CFT6 correspondence with sixteen superch...»
    We discuss the AdS7/CFT6 correspondence with sixteen supercharges, focusing on the gravity side. The six-dimensional field theories are (1, 0) supersymmetric and represent the low-energy dynamics of NS5-D6-D8-brane configurations. The gravity duals are AdS7 solutions of massive IIA supergravity. In addition, we present lower-dimensional anti-deSitter solutions, as duals to compactifications of the sixdimensional field theories.
    הרצאה
  • Date:24שלישינובמבר 2015

    MCB Student Seminar

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    שעה
    12:30 - 12:30
    כותרת
    Development of fenestrated blood capillaries in a neuro-endocrine interface A Glance into the Mechanobiology of Cell-Matrix Interactions
    מיקום
    בניין וולפסון למחקר ביולוגי
    מרצהLusi Gordon, Dr. Ayelet Lesman
    מארגן
    המחלקה לביולוגיה מולקולרית של התא
    צרו קשר
    הרצאה
  • Date:24שלישינובמבר 2015

    "What Have We Learned from MAS NMR on Biomaterial Interfaces: Examples from Bone-like Apatite and Bioinspired Silica"

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    שעה
    14:00 - 14:00
    מיקום
    בניין הלן ומילטון קימלמן
    מרצהDr. Gil Goobes
    Bar Ilan University
    מארגן
    המחלקה לביולוגיה מבנית וכימית
    צרו קשר
    הרצאה
  • Date:25רביעינובמבר 2015

    Detonation nanodiamond as attractive building block for nanotechnology

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    שעה
    11:00 - 11:00
    מיקום
    בניין פרלמן למדעי הכימיה
    מרצהProf. Alexander Vul
    Ioffe Physical-Technical Institute, St.Petersburg, Russia
    מארגן
    המחלקה לכימיה מולקולרית ולמדע חומרים
    צרו קשר
    הרצאה
  • Date:25רביעינובמבר 2015

    Detonation nanodiamond as attractive building block for nanotechnology

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    שעה
    11:00 - 11:00
    מיקום
    בניין פרלמן למדעי הכימיה
    מרצהProf. Alexander Vul
    Ioffe Physical-Technical Institute, St.Petersburg
    מארגן
    המחלקה לכימיה מולקולרית ולמדע חומרים
    צרו קשר
    הרצאה
  • Date:25רביעינובמבר 2015

    The Higgs Mass in Compact Supersymmetry

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    שעה
    11:00 - 11:00
    מיקום
    בניין הפיזיקה ע"ש עדנה וק.ב. וייסמן
    מרצהKohsaku Tobioka
    Weizmann/TAU
    מארגן
    המחלקה לפיזיקה של חלקיקים ואסטרופיזיקה
    צרו קשר
    תקצירShow full text abstract about The current LHC results make weak scale supersymmetry diffic...»
    The current LHC results make weak scale supersymmetry difficult due to relatively heavy mass of the discovered Higgs boson and the null results of new particle searches. Geometrical supersymmetry breaking from extra dimensions, Scherk-Schwarz mechanism, is possible to accommodate such situations. A concrete example, the Compact Supersymmetry model, has a compressed spectrum ameliorating the LHC bounds and large mixing in the top and scalar top quark sector with |A_t |∼2m_t ̃ which radiatively raises the Higgs mass. While the zero mode contributions of the model has been considered, in this paper we calculate the Kaluza-Klein tower effect to the Higgs mass. Although such contributions are naively expected to be as small as a percent level for 10 TeV Kaluza-Klein modes, we find the effect significantly enhances the radiative correction to the Higgs quartic coupling by from 10 to 50 %. This is mainly because the top quark wave function is pushed out from the brane, which makes the top Yukawa coupling to depend on higher powers in the Higgs field for a fixed top mass. As a result the Higgs mass is enhanced up to 15 GeV from the previous calculation. We also show the whole parameter space is testable at the LHC run II.
    הרצאה

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