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  • Date:28SundayApril 2019

    The stinging mechanism of jellyfish

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    Time
    11:00
    Location
    Sussman Family Building for Environmental Sciences
    M. Magaritz Seminar Room
    Lecturer
    Uri Shavit
    Technion
    Organizer
    Department of Earth and Planetary Sciences
    Contact
    Lecture
  • Date:28SundayApril 2019

    Departmental Seminar

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    Time
    13:00 - 14:00
    Title
    “Untangling organelle interactions: a systematic approach to identify new contact site proteins”
    Location
    Arthur and Rochelle Belfer Building for Biomedical Research
    Botnar Auditorium
    Lecturer
    Ines Castro
    Organizer
    Department of Molecular Genetics
    DDP Seminar
    Contact
    Lecture
  • Date:29MondayApril 201930TuesdayApril 2019

    Cellular Signaling in Health and Disease

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    Time
    08:00 - 08:00
    Location
    Max and Lillian Candiotty Building
    Auditorium
    Chairperson
    Rony Seger
    Organizer
    Department of Biological Regulation
    Contact
    Conference
  • Date:29MondayApril 2019

    Thesis defense presentation by Dr. Niv Zmora, will lecture on "Microbiome-Based Personalized Interventions."

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    Time
    13:00 - 14:00
    Location
    Wolfson Building for Biological Research
    Auditorium
    Lecturer
    Dr. Niv Zmora
    Organizer
    Department of Immunology
    Contact
    Lecture
  • Date:29MondayApril 2019

    Period doubling as an early warning signal for desertification

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    Time
    14:15
    Location
    Edna and K.B. Weissman Building of Physical Sciences
    Room A
    Lecturer
    Omer Tzuk
    BGU
    Organizer
    Department of Physics of Complex Systems
    Statistical Physics Seminar
    Contact
    AbstractShow full text abstract about The predictions for a warmer and drier climate and for incre...»
    The predictions for a warmer and drier climate and for increased likelihood of climate extremes raise high concerns about the possible collapse of dryland ecosystems, and about the formation of new drylands where native species are less tolerant to water stress. Using a dryland-vegetation model for plant species that display different tradeoffs between fast growth and tolerance to droughts, we find that ecosystems subjected to strong seasonal variability, typical for drylands, exhibit a period-doubling route to chaos that results in early collapse to bare soil. We further find that fast-growing plants go through period doubling sooner and span wider chaotic ranges than stress-tolerant plants. We propose the detection of period-doubling signatures in power spectra as early indicators of ecosystem collapse that outperform existing indicators in their ability to warn against climate extremes and capture the heightened vulnerability of newly-formed drylands.
    Lecture
  • Date:30TuesdayApril 2019

    Modulation of T-cell activity by the human T-cell leukemia virus fusion peptide

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    Time
    10:00 - 10:30
    Location
    Nella and Leon Benoziyo Building for Biological Sciences
    Auditorium
    Lecturer
    Eita Rotem
    Department of Biomolecular Sciences-WIS
    Organizer
    Department of Biomolecular Sciences
    Contact
    AbstractShow full text abstract about In order to infect and persist in their hosts, viruses utili...»
    In order to infect and persist in their hosts, viruses utilize multiple strategies to evade the immune system. HIV utilizes membrane interacting regions of its envelope protein, primarily used to fuse with its target cells, to inhibit T-cell activation. Yet, it is unknown whether this ability is shared with other viruses. We examined the T-cell inhibitory activity of HTLV-1, focusing on a functionally conserved region of HTLV’s and HIV’s fusion proteins, the fusion peptide (FP). Here, we reveal that HTLV’s FP modulates T-cell activity in-vitro and in-vivo. This modulation is characterized by downregulation of the Th1-response, leading to an elevated Th2-response observed by transition in mRNA, cytokines and regulatory proteins. Our findings suggest that FP mediated immune evasion might be a trait shared between different viruses.
    Lecture
  • Date:30TuesdayApril 2019

    The title and abstract for my departmental seminar are attached as requested

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    Time
    10:30 - 11:00
    Location
    Nella and Leon Benoziyo Building for Biological Sciences
    Auditorium
    Lecturer
    Nitzan Samra
    Department of Biomolecular Sciences-WIS
    Organizer
    Department of Biomolecular Sciences
    Contact
    AbstractShow full text abstract about Peripheral neurons extend long axons that connect to target ...»
    Peripheral neurons extend long axons that connect to target cells in skin or muscle. Axonal transcriptomes and proteomes have distinct characteristics and are modified by local stimuli. The regulation of axonal protein translation is still poorly understood. Here we show that mTOR, an important kinase in cell growth signaling, is locally translated in axons following injury, and regulates most of the local protein synthesis in axons. Moreover, we identified RNA sequences and RNA binding proteins involved in mTOR mRNA axonal localization. These results reveal critical roles for mTOR local translation in neuronal growth and regeneration.
    Lecture
  • Date:30TuesdayApril 2019

    The roles of actomyosin in secretion: How flies spit

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    Time
    11:30
    Location
    Nella and Leon Benoziyo Building for Biological Sciences
    Auditorium
    Lecturer
    Prof. Benny Shilo
    Department of Molecular Genetics, Weizmann Institute of Science
    Organizer
    Department of Plant and Environmental Sciences
    Homepage
    Contact
    DetailsShow full text description of Host: Dr. Einat Segev...»
    Host: Dr. Einat Segev
    Lecture
  • Date:30TuesdayApril 2019

    A century-old assumption regarding neurons and brain learning is undermined by new types of experiments

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    Time
    14:00
    Location
    Arthur and Rochelle Belfer Building for Biomedical Research
    Botnar Auditorium
    Lecturer
    Prof. Ido Kanter
    Dept of Physics, Bar-Ilan University
    Organizer
    Department of Neurobiology
    Contact
    DetailsShow full text description of Host: Prof. Rony Paz rony.paz@weizmann.ac.il tel: 6236 ...»
    Host: Prof. Rony Paz rony.paz@weizmann.ac.il tel: 6236
    For assistance with accessibility issues, please contact naomi.moses@weizmann.ac.il
    AbstractShow full text abstract about According to the long-lasting computational scheme each neur...»
    According to the long-lasting computational scheme each neuron sums the incoming electrical signals via its dendrites and when the membrane potential reaches a certain threshold the neuron typically generates a spike. We present three types of experiments indicating that each neuron functions as a collection of independent threshold units, where the neuron is activated following the origin of the arriving signals. In addition, experimental and theoretical results reveal a new underlying mechanism for the fast brain learning process, dendritic learning, as opposed to learning which is based solely on slow synaptic plasticity. The learning occurs in closer proximity to the neuron, dendritic strengths are self-oscillating, and weak synapses play a key role in the dynamics.
    Lecture
  • Date:01WednesdayMay 2019

    Developmental Club Series 2018-2019

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    Time
    10:00
    Title
    The roles of actomyosin in secretion: How flies spit
    Location
    Arthur and Rochelle Belfer Building for Biomedical Research
    Botnar Auditorium
    Lecturer
    Prof. Benny Shilo
    Organizer
    Department of Molecular Genetics
    Developmental Club
    Contact
    Lecture
  • Date:01WednesdayMay 2019

    Excitons in Flatland: Exploring and Manipulating Many-body Effects on the Optical Excitations in Quasi-2D Materials

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    Time
    11:00 - 12:00
    Location
    Perlman Chemical Sciences Building
    Room 404
    Lecturer
    Dr. Diana Qiu
    Dept. Physics, University of California at Berkeley
    Organizer
    Department of Materials and Interfaces
    Contact
    AbstractShow full text abstract about Since the isolation of graphene in 2004, atomically-thin qua...»
    Since the isolation of graphene in 2004, atomically-thin quasi-two-dimensional (quasi-2D) materials have proven to be an exciting platform for both applications in novel devices and exploring fundamental phenomena arising in low dimensions. This interesting low-dimensional behavior is a consequence of the combined effects of quantum confinement and stronger electron-electron correlations due to reduced screening. In this talk, I will discuss how the optical excitations (excitons) in quasi-2D materials, such as monolayer transition metal dichalcogenides and few-layer black phosphorus, differ from typical bulk materials. In particular, quasi-2D materials are host to a wide-variety of strongly-bound excitons with unusual excitation spectra and massless dispersion. The presence of these excitons can greatly enhance both linear and nonlinear response compared to bulk materials, making them ideal candidates for optoelectronics and energy applications. Moreover, due to enhanced correlations and environmental sensitivity, the electronic and optical properties of these materials can be easily tuned. I will discuss how substrate engineering, stacking of different layers, and the introduction or removal of defects can be used to tune the band gaps and optical selection rules in quasi-2D materials.
    Lecture
  • Date:02ThursdayMay 2019

    Memorial Ceremony for Holocaust Remembrance Day

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    Time
    10:00 - 11:00
    Contact
    DetailsShow full text description of Location: Memorial Plaza...»
    Location: Memorial Plaza
    Lecture
  • Date:02ThursdayMay 2019

    TBA

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    Time
    14:00 - 15:00
    Title
    CANCER RESEARCH CLUB
    Location
    Max and Lillian Candiotty Building
    Auditorium
    Lecturer
    Prof. Yardena Samuels
    Department of Molecular Cell Biology, Weizmann Institute of Science
    Organizer
    Department of Biological Regulation
    Contact
    Lecture
  • Date:05SundayMay 201906MondayMay 2019

    Executive Board and committees meetings - 2019

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    Location
    David Lopatie Conference Centre
    Kimmel Auditorium
    Contact
    International Board
  • Date:05SundayMay 2019

    The pathway of atmospheric water from ocean evaporation to rainout in extratropical weather systems

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    Time
    11:00
    Location
    Sussman Family Building for Environmental Sciences
    M. Magaritz Seminar Room
    Lecturer
    Heini Wernli
    ETH
    Organizer
    Department of Earth and Planetary Sciences
    Contact
    Lecture
  • Date:05SundayMay 2019

    Spontaneous shape transitions of developing tissues

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    Time
    11:00 - 12:00
    Location
    Perlman Chemical Sciences Building
    Room 404
    Lecturer
    Prof. Anne Bernheim
    Department of Chemical Engineering, Ben Gurion University
    Organizer
    Department of Materials and Interfaces
    Soft Matter and Biomaterials
    Contact
    AbstractShow full text abstract about Shape transitions in developing organisms can be driven by a...»
    Shape transitions in developing organisms can be driven by active stresses, notably, active contractility generated by myosin motors. We study the contraction and buckling of actomyosin networks isolated from bounding surfaces as a model system for studying shape transitions in developing tissues. This system offers a well-controlled way to study the role of physical constraints and boundary conditions mechanically induced spontaneous shape transition.
    Lecture
  • Date:05SundayMay 2019

    The technology-resources-sustainability nexus: Rare earth metals and emerging ‘green’ technologies

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    Time
    13:00 - 14:00
    Title
    Sustainability and Energy Research Initiative (SAERI) Seminar Series
    Location
    Nella and Leon Benoziyo Building for Biological Sciences
    Room 690
    Lecturer
    Tomer Fishman
    School of Sustainability IDC Herzliya, Israel
    Organizer
    Feinberg Graduate School
    Alternative Sustainable Energy Research Initiative (AERI)
    Contact
    DetailsShow full text description of Host: Prof. Ron Milo Light refreshments will be served at 1...»
    Host: Prof. Ron Milo
    Light refreshments will be served at 12:40
    Lecture
  • Date:06MondayMay 2019

    Life Science Colloquium

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    Time
    11:00 - 12:00
    Title
    Regulation of Innate Immunity
    Location
    Wolfson Building for Biological Research
    Lecturer
    Prof. Jonathan Kagan
    Boston Children's Hospital, Harvard Medical School
    Organizer
    Life Sciences
    Contact
    Colloquia
  • Date:07TuesdayMay 2019

    Algebraic Geometry and Representation Theory Seminar

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    Time
    11:15 - 12:30
    Title
    Remarks on liftings mod $p^2$ and the Nygaard filtration
    Location
    Jacob Ziskind Building
    Room 155
    Lecturer
    Luc Illusie
    University of Paris-Sud
    Organizer
    Faculty of Mathematics and Computer Science
    Faculty of Mathematical Sciences Seminar, Department of Computer Science and Applied Mathematics
    Faculty of Mathematical Sciences Seminar, Department of Mathematics
    Faculty of Mathematical Sciences Seminar
    Contact
    DetailsShow full text description of I'll revisit decompositions of de Rham complexes in pos...»
    I'll revisit decompositions of de Rham complexes in positive characteristic (Deligne-Illusie), by discussing relations between cotangent complexes, liftings mod $p^2$, and de Rham-Witt and derived de Rham complexes. Such relations have been recently observed independently by Bhargav Bhatt.
    Lecture
  • Date:07TuesdayMay 2019

    Biogeochemical cycling of trace elements in the oceans: lessons from coeval time series of dust, marine particulates and seawater in the Red Sea

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    Time
    11:30
    Location
    Nella and Leon Benoziyo Building for Biological Sciences
    Auditorium
    Lecturer
    Dr. Adi Torfstein
    Institute of Earth Sciences, Hebrew University of Jerusalem, Interuniversity Institute of Marine Sciences of Eilat
    Organizer
    Department of Plant and Environmental Sciences
    Homepage
    Contact
    DetailsShow full text description of Host: Dr. Einat Segev...»
    Host: Dr. Einat Segev
    Lecture

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