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February 21, 2016
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Date:10TuesdayDecember 2019Lecture
Molecular errors and evolvability
More information Time 11:00 - 12:00Location Gerhard M.J. Schmidt Lecture HallLecturer Prof. Joanna Masel
Ecology and Evolutionary Biology, The University of Arizona, USAOrganizer Department of Chemical and Structural BiologyContact -
Date:10TuesdayDecember 2019Lecture
Special Guest Seminar: Prof. Yair Reisner will lecture on "Hematopoietic and lung stem cell transplantation across major genetic barriers."
More information Time 11:00 - 12:00Location Wolfson Building for Biological ResearchLecturer Prof. Yair Reisner
Head, Stem Cell Research; Dep. Stem Cell Transplantation & Cellular Therapy; MD Anderson Cancer Center; Houston, Texas.Organizer Department of Systems ImmunologyContact -
Date:10TuesdayDecember 2019Lecture
Transposable elements as drivers of structural and functional variations in wheat genome
More information Time 11:30 - 12:30Location Nella and Leon Benoziyo Building for Biological SciencesLecturer Prof. Khalil Kashkush
Dept. of Life Sciences, Faculty of Natural Sciences, Ben-Gurion University of the NegevOrganizer Department of Plant and Environmental SciencesHomepage Contact -
Date:10TuesdayDecember 2019Lecture
Tracking proteins' conformations inside cells with Gd(III) spin labels
More information Time 14:00 - 15:00Location Helen and Milton A. Kimmelman BuildingLecturer Prof. Daniella Goldfarb
Department of Chemical and Biological Physics, WISOrganizer Department of Chemical and Structural BiologyContact -
Date:11WednesdayDecember 2019Lecture
Developmental Club Series 2019-20
More information Time 10:00 - 10:00Title Uncovering the basis of axonal guidance receptor multifunctionalityLocation Arthur and Rochelle Belfer Building for Biomedical ResearchLecturer Prof. Avraham Yaron Organizer Department of Molecular GeneticsContact -
Date:12ThursdayDecember 2019Lecture
In vivo multimodality imaging of immune-vascular interactions in cardiovascular disease
More information Time 10:00 - 11:00Location Perlman Chemical Sciences BuildingLecturer Prof. Katrien Vandoorne
Eindhoven University of Technology (The Netherlands), Department of Biomedical Engineering, Soft Tissue EngineeringOrganizer Department of Molecular Chemistry and Materials ScienceContact Abstract Show full text abstract about Cardiovascular disease is a result of genetic and environmen...» Cardiovascular disease is a result of genetic and environmental risk factors that together generate arterial and cardiac pathologies. Blood vessels connect multiple organ systems throughout the entire body allowing organs to interact via circulating messengers. Multimodality imaging achieves integration of these interfacing systems’ distinct processes, quantifying interactions that contribute to cardiovascular disease. Noninvasive multimodality imaging techniques are emerging tools that can further our understanding of this complex and dynamic interplay. Multichannel multimodality imaging including optics, CT, PET and MRI, are particularly promising because they can simultaneously sample multiple biomarkers. As the opportunities provided by imaging expand, mapping interconnected systems will help us decipher the complexity of cardiovascular disease and monitor novel therapeutic strategies. -
Date:12ThursdayDecember 2019Colloquia
Magic Angle Bilayer Graphene - Superconductors, Orbital Magnets, Correlated States and beyond
More information Time 11:15 - 12:30Location Edna and K.B. Weissman Building of Physical SciencesLecturer Dmitri K. Efetov
ICFOOrganizer Faculty of PhysicsContact Abstract Show full text abstract about When twisted close to a magic relative orientation angle nea...» When twisted close to a magic relative orientation angle near 1 degree, bilayer graphene has flat moire superlattice minibands that have emerged as a rich and highly tunable source of strong correlation physics, notably the appearance of superconductivity close to interaction-induced insulating states. Here we report on the fabrication of bilayer graphene devices with exceptionally uniform twist angles. We show that the reduction in twist angle disorder reveals insulating states at all integer occupancies of the four-fold spin/valley degenerate flat conduction and valence bands, i.e. at moire band filling factors nu = 0, +(-) 1, +(-) 2, +(-) 3, and reveals new superconductivity regions below critical temperatures as high as 3 K close to - 2 filling. In addition we find novel orbital magnetic states with non-zero Chern numbers. Our study shows that symmetry-broken states, interaction driven insulators, and superconducting domes are common across the entire moire flat bands, including near charge neutrality. We further will discuss recent experiments including screened interactions, fragile topology and the first applications of this amazing new materials platform. -
Date:12ThursdayDecember 2019Lecture
TAM Tyrosine Kinase Receptor Signaling in Cancer: Unexpected Roles in the Tumor microenvironment
More information Time 14:00 - 15:00Location Max and Lillian Candiotty BuildingLecturer Prof. Tal Burstyn-Cohen Organizer Department of Immunology and Regenerative BiologyContact -
Date:15SundayDecember 201917TuesdayDecember 2019Lecture
1st Israeli ISAC Flow Cytometry workshop
More information Time All dayOrganizer Department of Life Sciences Core FacilitiesContact -
Date:15SundayDecember 201919ThursdayDecember 2019Conference
Selected Problems in Z-Pinch Physics
More information Time 08:00 - 08:00Location Edna and K.B. Weissman Building of Physical SciencesChairperson Tal Queller -
Date:15SundayDecember 2019Conference
China-Weizmann Symposium on Scientific Cooperation
More information Time 09:00 - 18:00Location The David Lopatie Conference CentreChairperson Eli Pollak -
Date:15SundayDecember 2019Lecture
Evaporation from the ocean: A new Lagrangian model and its application to observations
More information Time 11:00 - 11:00Location Sussman Family Building for Environmental SciencesLecturer Natan Paldor
The Hebrew University of JerusalemOrganizer Department of Earth and Planetary SciencesContact -
Date:15SundayDecember 2019Lecture
Topological defects in the actin cytoskeleton as organizing centers of Hydra morphogenesis
More information Time 11:00 - 12:00Location Perlman Chemical Sciences BuildingLecturer Prof. Kinneret Keren
Physics Department, TechnionOrganizer Department of Molecular Chemistry and Materials ScienceContact Abstract Show full text abstract about Morphogenesis is one of the most remarkable examples of biol...» Morphogenesis is one of the most remarkable examples of biological self-organization. Despite substantial progress, we still do not understand the organizational principles underlying the convergence of this process, across scales, to form viable organisms. We focus on the mechanical aspects of morphogenesis using Hydra, a small multicellular fresh-water animal, as a model system. Hydra has a simple body plan and is famous for its ability to regenerate its whole body from small tissue segments. I will show that the nematic order of the supra-cellular actin fibers in regenerating Hydra defines a coarse-grained field, whose dynamics provide an effective description of the morphogenesis process, with the topological defects in the nematic order acting as effective organizing centers. I will further describe our attempts to directly probe the influence of mechanics on morphogenesis, by applying various external mechanical constraints on regenerating Hydra. -
Date:15SundayDecember 2019Lecture
Science-based policy and knowledge gaps regarding Israel's Marine Environment
More information Time 13:00 - 14:00Title SAERI - Sustainablity and Energy Research Initiative Seminar SeriesLocation Nella and Leon Benoziyo Building for Biological SciencesLecturer Dr. Dror Zurel
Marine Monitoring and Research Coordinator Israel Ministry of Environmental Protection Marine and Coastal Protection DivisionOrganizer Weizmann School of ScienceContact -
Date:15SundayDecember 2019Lecture
Science-based policy and knowledge gaps regarding Israel's Marine Environment
More information Time 13:00 - 14:00Title SAERI - Sustainability and Energy Research InitiativeLocation Nella and Leon Benoziyo Building for Biological SciencesLecturer Dr. Dror Zurel
Marine Monitoring and Research Coordinator Israel Ministry of Environmental Protection Marine and Coastal Protection DivisionOrganizer Weizmann School of ScienceContact -
Date:15SundayDecember 2019Lecture
Departmental Seminar - Molecular Genetics Dept.
More information Time 13:00 - 13:00Location Arthur and Rochelle Belfer Building for Biomedical ResearchOrganizer Department of Molecular GeneticsContact -
Date:15SundayDecember 2019Lecture
“Yad Vashem” More than just a name
More information Time 19:00 - 20:30Location Gerhard M.J. Schmidt Lecture HallLecturer Rachel Karni Organizer Department of Molecular Chemistry and Materials ScienceContact Abstract Show full text abstract about Archival documents from the Ukraine have only recently becom...» Archival documents from the Ukraine have only recently become available in Israel. These amazing documents (from the years 1880-1936) have enabled the preparation of pages of testimony for Yad Vashem – pages which serve as the sole memory for Jews who perished in the Holocaust.
Rachel Karni has spent much time over the last three years researching the town that her mother came from. From the information gathered, she has been able to compile pages of testimony for people about whom almost nothing, except their names and the fact that they had been murdered, had been known previously.
Rachel will speak about the results of her very interesting detective work. The methodology she employed can be replicated for other places.
Originally from New Jersey, USA, Rachel lives in Merkaz Shapira and was, for many years, the head of the English Department at the Shafir Religious High School.
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Date:16MondayDecember 2019Colloquia
Solution-Processed Organic Semiconductors for Applications in Opto-electronic Devices
More information Time 11:00 - 12:15Location Gerhard M.J. Schmidt Lecture HallLecturer Prof. Thuc-Quyen Nguyen
University of California, Santa BarbaraOrganizer Faculty of ChemistryContact -
Date:16MondayDecember 2019Colloquia
Prof. Alexander Rudensky
More information Time 11:00 - 12:00Location Nella and Leon Benoziyo Building for Biological SciencesLecturer Prof. Alexander Rudensky Contact -
Date:16MondayDecember 2019Lecture
"A Stochastic approach to thermal density functional theory"
More information Time 14:00 - 15:00Location Perlman Chemical Sciences BuildingLecturer Dr. Yael Cytter
Faculty of Chemistry, HUJIOrganizer Department of Molecular Chemistry and Materials ScienceContact Abstract Show full text abstract about abstract Warm dense matter (WDM) is state of matter charact...» abstract
Warm dense matter (WDM) is state of matter characterized by temperatures of the order of 10,000 K and nuclear densities of magnitude significantly higher than those found in ordinary condensed matter. WDM is found in many fields of physics, chemistry, planetary sciences, and even industry: stellar and planetary science, laser-induced chemical processes in solids and on surfaces as well as plasma physics.
Nowadays, using intense lasers, WDM properties can be investigated in the laboratory, thus requiring attention to theoretical research for interpretation and understanding of the results. The theoretical description of the regime is complex, being the intermediate between condensed matter physics (i.e., quantum description) and plasma physics (classical thermodynamics). WDM is often described theoretically using finite-temperature Kohn-Sham (KS) density functional theory (DFT) calculations, with reasonably good agreement to experiments. These calculations in finite (non-zero) temperatures are costly due to the large number of fractionally occupied KS orbitals that are involved. The computational cost exhibits cubic scaling with temperature.
Stochastic density functional theory (sDFT), developed recently [1,2,3] appears to be a viable approach to WDM since it is “orbital-free” and yet fully KS. The sDFT approach uses the Fermi Dirac occupation operator to calculate the energy, and finds the electronic density and other expectation values by executing the trace in a stochastic way using random orbitals; in doing so, it skips over the step of calculating the KS orbitals. We further use the stochastic trace formula to calculate the conductivity based on Kubo-Greenwood formula. In the talk, convergence of the free energy will be discussed, as well as calculations of equations of states and statistical convergence of the conductivity when calculated based on stochastic thermal DFT. Transition to metallization in he-h systems was seen in temperature of ~60kK using the stochastic approach.
[1] R. Baer, D. Neuhauser, E. Rabani, Phys. Rev. Lett. 111, 106402 (2013)
[2] Y. Cytter, E. Rabani, D. Neuhauser, and R. Baer Phys. Rev. B 97, 115207 (2018)
[3] Yael Cytter, Eran Rabani, Daniel Neuhauser, Martin Preising, Ronald Redmer, and Roi Baer Phys. Rev. B 100, 195101 (2019)