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  • Date:16SundayFebruary 2020

    Departmental Seminar by Sagie Brodsky & Noa Novershtern

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    Time
    13:00
    Location
    Arthur and Rochelle Belfer Building for Biomedical Research
    Botnar Auditorium
    Organizer
    Department of Molecular Genetics
    Contact
    Lecture
  • Date:16SundayFebruary 2020

    Shaping liquid droplets and elastic membranes

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    Time
    13:15
    Location
    Edna and K.B. Weissman Building of Physical Sciences
    Drory Auditorium
    Lecturer
    Zvonimir Dogic
    UCSB
    Organizer
    Clore Center for Biological Physics
    Contact
    AbstractShow full text abstract about We describe two self-assembly pathways observed in micron-th...»
    We describe two self-assembly pathways observed in micron-thick colloidal membranes that spontaneously assemble in mixtures of monodisperse colloidal rods and non-adsorbing polymer. In a first example, we study mechanisms by which membrane-embedded 2D liquid droplets acquire unusual non-spherical shapes, suggesting that the interfacial edge domain has spontaneous non-zero edge curvature. These experimental observations can be explained by a simple geometric argument which predicts that the edge curvature towards shorter rod domains softens the resistance of the edge to twist. In a second example, we study the 3D structure of membranes composed of miscible rod-like molecules of differing lengths. Above a critical concentration of shorter rods flat 2D membranes become unstable and assume a bewildering variety of different shapes and topologies. Simple arguments suggest that doping colloidal membranes with miscible shorter rods tunes the membrane’s Gaussian modulus, which in turn destabilizes flat 2D membranes.
    Lecture
  • Date:17MondayFebruary 2020

    IPS20

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    Time
    08:00 - 08:00
    Location
    Michael and Anna Wix Auditorium
    Chairperson
    Gilad Perez
    Organizer
    Faculty of Physics
    Contact
    Conference
  • Date:17MondayFebruary 2020

    2D Polymers: Synthesis in Single Crystals and on Water

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    Time
    11:00 - 12:15
    Location
    Gerhard M.J. Schmidt Lecture Hall
    Lecturer
    Prof. Dieter Schlüter
    ETH Zurich, Switzerland
    Organizer
    Faculty of Chemistry
    Contact
    Colloquia
  • Date:18TuesdayFebruary 2020

    To be announced-Reserved

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    Time
    10:00 - 10:30
    Location
    Nella and Leon Benoziyo Building for Biological Sciences
    Auditorium
    Organizer
    Department of Biomolecular Sciences
    Contact
    Lecture
  • Date:20ThursdayFebruary 2020

    Israel Algorithmic Game Theory Day

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    Time
    08:00 - 08:00
    Location
    David Lopatie Conference Centre
    Kimmel Auditorium
    Chairperson
    Shahar Dobzinski
    Contact
    Conference
  • Date:20ThursdayFebruary 2020

    Designing the optimal wave

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    Time
    11:15 - 12:30
    Location
    Edna and K.B. Weissman Building of Physical Sciences
    Auditorium
    Lecturer
    Stefan Rotter
    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 I will speak about newly emerging approaches for designing w...»
    I will speak about newly emerging approaches for designing wave fronts that are optimal for various purposes such as for focusing waves on a target, for manipulating small particles with light, or for precision measurements in general. The theoretical concept enabling the optimal solutions for all of these diverse applications turns out to be an operator introduced by  Wigner and Smith based on a system’s scattering matrix. I will provide a review of this concept and shall illustrate how experimental access to the Wigner-Smith operator enables wave-front shaping protocols at the optimal level of efficiency.
    Colloquia
  • Date:20ThursdayFebruary 2020

    Looking into the rocks of Acheulo-Yabrudian Qesem Cave (Israel, 420-200 kya)

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    Time
    11:30 - 12:30
    Location
    Nella and Leon Benoziyo Building for Biological Sciences
    Room 690
    Lecturer
    Aviad Agam
    Scientific Archaeology unit, Weizmann Institute of Science
    Organizer
    Academic Educational Research
    The Scientific Archaeology Unit
    Contact
    AbstractShow full text abstract about The Acheulo-Yabrudian Cultural Complex (AYCC, ~420,000-200,0...»
    The Acheulo-Yabrudian Cultural Complex (AYCC, ~420,000-200,000 years ago) is a local Levantine entity, characterized by a set of innovative human cultural and biological adaptations, including the habitual use of fire, technological innovations such as blade and Quina scraper production, and more. Qesem Cave (QC, central Israel) is one of the key sites of the AYCC. I will present the results of two recent studies, exploring the rich lithic assemblages yielded from this important site.
    The first combines macroscopic classification of flint artefacts with a geological survey and petrographic and geochemical analyses, aimed at identifying patterns of flint acquisition and use. The results show that local Turonian flint was often brought and used at the cave, while flint from other, non-Turonian origins, was also used in noteworthy proportions, in specific categories, implying selectivity in flint procurement and exploitation through time.
    The second study combines Raman spectroscopy and artificial intelligence (AI) to build temperature predictive models, aimed at identifying the temperatures to which flint artefacts were exposed. The results show that blades were heated at lower median temperatures (259℃) compared to flakes (413℃), suggesting the intentional and controlled heat treatment of flint specifically for blade production, more than 300,000 years ago.
    Both datasets and their implications will be discussed in a broader perspective.
    Lecture
  • Date:23SundayFebruary 202024MondayFebruary 2020

    Language of Evolution and Evolution of Language

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    Time
    08:00 - 08:00
    Location
    David Lopatie Conference Centre
    Kimmel Auditorium
    Chairperson
    Yitzhak Pilpel
    Homepage
    Contact
    Conference
  • Date:23SundayFebruary 2020

    Exploring the limits of Earth’s habitability by scientific ocean drilling: The impact of temperature on microbial life and carbon flow in deep sub-seafloor sediments

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    Time
    11:00
    Location
    Sussman Family Building for Environmental Sciences
    M. Magaritz Seminar Room
    Lecturer
    Verena Heuer
    National Academy of Science University of Bremen
    Organizer
    Department of Earth and Planetary Sciences
    Contact
    Lecture
  • Date:23SundayFebruary 2020

    Laser-induced graphene polymer composite membranes as electrically active filters for contaminant removal

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    Time
    11:00 - 12:00
    Location
    Perlman Chemical Sciences Building
    Room 404
    Lecturer
    Dr. Christopher J. Arnusch
    Department of Desalination and Water Treatment, Zuckerberg Institute for Water Research
    Organizer
    Department of Materials and Interfaces
    Soft Matter and Biomaterials
    Contact
    AbstractShow full text abstract about The control/elimination of microorganisms, viruses and micro...»
    The control/elimination of microorganisms, viruses and micropollutants is relevant in many water treatment systems. We developed Laser-induced graphene (LIG), a three-dimensional, porous, electrically conductive graphene material generated by irradiation of polymer substrates composites, which have strong antifouling and antimicrobial properties. This method to “laser-print” electrically conductive antifouling graphene coatings on membranes holds promise for advanced water treatment and purification
    Lecture
  • Date:23SundayFebruary 2020

    Buckyball Maracas: Fullerene Nanocontainers that Stabilize Unusual Atoms and Clusters Inside

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    Time
    14:00 - 15:00
    Location
    Helen and Milton A. Kimmelman Building
    Dov Elad Room
    Lecturer
    Prof. Luis Echegoyen
    President of the American Chemical Society. University of El Paso, TX
    Organizer
    Department of Materials and Interfaces
    Contact
    AbstractShow full text abstract about For the past two years we have been involved in the synthesi...»
    For the past two years we have been involved in the synthesis and characterization of new Uranium-based endohedral fullerenes and have obtained X-Ray crystal structures for several of these compounds. Some are mono-uranium species, U@C2n, while some are di-uranium compounds (see structure at the left), U2@C2n.1 Very recently we isolated two new mono-uranium compounds that violate the Isolated Pentagon Rule (IPR) with a C76 and a C80 cage possessing fused five-membered rings (pentalenes) on their surfaces.2 Still other endohedral structures are much more interesting and totally unanticipated, with formula U2X@C2n, where X= C, O, S or N and 2n= 72, 78 or 80, which reveal interesting metal-cage interactions and totally unprecedented clusters trapped inside. Some of the carbide compounds have been crystallized and the encapsulated U2C cluster (in U=C=U@C80) exhibits unprecedented bonding with totally unanticipated properties (see structure to the right).3
    Finally, we have found that bis-porphyrin capsules exhibit exquisitely selective supramolecular binding for several of these uranium-based endohedral fullerene compounds.4
    The synthesis, purification and characterization of these interesting endohedral fullerenes will be presented and discussed, along with very recent results about uranium-based endohedrals.

    References
    1. Zhang, X.; Wang, Y.; Morales-Martínez, R.; Zhong, J.; de Graaf, C.; Rodríguez-Fortea, A.; Poblet, J. M.; Echegoyen, L.; Feng, L.; Chen, N., J. Am. Chem. Soc. 2018, 140 (11), 3907-3915.
    2. Cai, W.; Abella, L.; Zhuang, J.; Zhang, X.; Feng, L.; Wang, Y.; Morales-Martínez, R.; Esper, R.; Boero, M.; Metta-Magaña, A.; Rodríguez-Fortea, A.; Poblet, J. M.; Echegoyen, L.; Chen, N., J. Am. Chem. Soc. 2018, 140 (51), 18039-18050.
    3. Zhang, X.; Li, W.; Feng, L.; Chen, X.; Hansen, A.; Grimme, S.; Fortier, S.; Sergentu, D.-C.; Duignan, T. J.; Autschbach, J.; Wang, S.; Wang, Y.; Velkos, G.; Popov, A. A.; Aghdassi, N.; Duhm, S.; Li, X.; Li, J.; Echegoyen, L.; Schwarz, W. H. E.; Chen, N., Nature Comm. 2018, 9 (1), 2753.
    4. Fuertes-Espinosa, C.; Gómez-Torres, A.; Morales-Martínez, R.; Rodríguez-Fortea, A.; García-Simón, C.; Gándara, F.; Imaz, I.; Juanhuix, J.; Maspoch, D.; Poblet, J. M.; Echegoyen, L.; Ribas, X., Angew. Chem. Int. Ed. 2018, 57 (35), 11294-11299.

    Lecture
  • Date:24MondayFebruary 2020

    Assurance of Clonality Next-Generation Single-Cell Dispensing in Cell Line Development and Single-Cell Genomics

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    Time
    10:00 - 11:00
    Title
    Presentation & ‘Cytena f.sight’ hands-on
    Location
    Nella and Leon Benoziyo Building for Biological Sciences
    Room 290C
    Lecturer
    Dr. Adrian Zambrano
    Field Application Specialist at Cytena (Cellink)
    Organizer
    Department of Life Sciences Core Facilities
    Contact
    Lecture
  • Date:25TuesdayFebruary 202026WednesdayFebruary 2020

    Ultra-High Field Nuclear Magnetic Resonance

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    Time
    08:00 - 08:00
    Location
    David Lopatie Conference Centre
    Kimmel Auditorium
    Chairperson
    Lucio Frydman
    Homepage
    Contact
    Conference
  • Date:25TuesdayFebruary 2020

    To be announced

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    Time
    09:00 - 10:00
    Title
    Stem Cells, Regeneration and Aging Breakfast Seminar
    Location
    Max and Lillian Candiotty Building
    Seminar Room
    Organizer
    Department of Biological Regulation
    Contact
    Lecture
  • Date:25TuesdayFebruary 2020

    Algebraic Geometry and Representation Theory Seminar

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    Time
    11:15 - 12:30
    Title
    Geometric restrictions on nilpotent orbits associated to distinguished representations of reductive groups.
    Location
    Jacob Ziskind Building
    Room 155
    Lecturer
    Dmitry Gourevitch
    Weizmann
    Organizer
    Department of Mathematics
    Faculty of Mathematical Sciences Seminar
    Contact
    DetailsShow full text description of Let G be a reductive group over a local field, and H be a sp...»
    Let G be a reductive group over a local field, and H be a spherical subgroup. An irreducible representation of G is said to be distinguished by H if it has an H-invariant continuous linear functional. The study of distinguished representations is of much current interest, because of their relation to the Plancherel measure on G/H and to periods of automorphic forms.

    While a complete classification seems to be out of reach, in a joint work with E. Sayag we established simple geometric necessary conditions for distinction. The conditions are formulated in terms of the nilpotent orbit associated to the representation. In the talk I will focus on the case of real reductive G, based on the recent preprint arXiv:2001.11746. Our main tool is the theory of associated varieties of modules over the Lie algebra of G.
    Lecture
  • Date:25TuesdayFebruary 2020

    The use of resistant pear accessions as inter-stock in order to reduce susceptibility to pear psylla in commercial pear trees - practice and the science behind

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    Time
    11:30 - 12:30
    Location
    Nella and Leon Benoziyo Building for Biological Sciences
    Auditorium
    Lecturer
    Dr. Liora Shaltiel-Harpaz
    Agro-Ecologist, IPM Northern R&D MIGAL/Tel-Hai College, Kiryat Shmona, Israel
    Organizer
    Department of Plant and Environmental Sciences
    Contact
    DetailsShow full text description of Hosts: Dr. Cathy Bessudo and Dr. Hadas Zehavi...»
    Hosts: Dr. Cathy Bessudo and Dr. Hadas Zehavi
    Lecture
  • Date:25TuesdayFebruary 2020

    Synaptic markers in the reward system for the predisposition to overeat

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    Time
    12:30
    Location
    Gerhard M.J. Schmidt Lecture Hall
    Lecturer
    Dr. Yonatan Kupchik
    Dept of Medical Neurobiology Faculty of Medicine The Institute for Medical Research Israel-Canada (IMRIC), The Hebrew University of Jerusalem
    Organizer
    Department of Neurobiology
    Contact
    DetailsShow full text description of Host: Dr. Meital Oren meital.oren@weizmann.ac.il tel: 6479...»
    Host: Dr. Meital Oren meital.oren@weizmann.ac.il tel: 6479
    For assistance with accessibility issues, please contact naomi.moses@weizmann.ac.il
    AbstractShow full text abstract about Obesity is a complex disease with its roots in the physiolog...»
    Obesity is a complex disease with its roots in the physiology of various brain circuits. Although much progress has been made in understanding the disease, the most fundamental question remains unanswered – why do we overeat? As Clifford Saper (Harvard) points out, “if feeding were controlled solely by homeostatic mechanisms, most of us would be at our ideal body weight, and people would consider feeding like breathing or elimination, a necessary but unexciting part of existence”. Clearly this is not the case; hedonic eating has come increasing under the spotlight in recent years as a main driver of obesity. As food becomes more and more rewarding, could overeating be driven by a pathological search for reward? In my talk I will demonstrate that chronic diet of highly-palatable food changes the physiology of the reward system and that mice that gained the most weight differ from those that gained the least weight in the physiology of two regions of the reward system – the nucleus accumbens and the ventral pallidum. Furthermore, I will show that long term plasticity in the ventral pallidum may be an innate marker for the predisposition to overeat palatable food.
    Lecture
  • Date:26WednesdayFebruary 202027ThursdayFebruary 2020

    fMRS 2020

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    Time
    08:00 - 08:00
    Location
    David Lopatie Conference Centre
    Chairperson
    Assaf Tal
    Contact
    Conference
  • Date:26WednesdayFebruary 2020

    Developmental Club Series 2019-20

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    Time
    10:00
    Title
    “Chromatin distribution in live muscle nuclei is sensitive to lamina stiffness”
    Location
    Arthur and Rochelle Belfer Building for Biomedical Research
    Botnar Auditorium
    Lecturer
    Prof. Talila Volk
    Organizer
    Department of Molecular Genetics
    Developmental Club
    Contact
    Lecture

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