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Date:19SundayMay 202420MondayMay 2024International Board
Executive Board and committee meetings 2024
More information Time All dayLocation The David Lopatie Conference Centre
Kimmel AuditoriumContact -
Date:19SundayMay 2024Lecture
Floods in a warming climate: what are the missing puzzle pieces?
More information Time 11:00Location Sussman Family Building for Environmental Sciences
M. Magaritz Seminar RoomLecturer Efrat Morin
The Hebrew University of JerusalemOrganizer Department of Earth and Planetary SciencesContact Abstract Show full text abstract about Flood is the outcome of complex processes interacting at a r...» Flood is the outcome of complex processes interacting at a range of scales. Flood generation and its magnitude depend on different precipitation and surface properties. As the climate becomes warmer globally, precipitation patterns are changing and, consequently, altering flood regimes. Resolving the expected changes in flood properties requires examining projections of precipitation features most correlated with floods. While the redistribution of mean annual precipitation amounts is generally known, the trends in many other essential factors controlling floods are yet to be resolved. For example, flash flood magnitude is sensitive to space-time rainstorm properties such as areal coverage or storm speed. Still, knowledge of how these properties are affected by global warming is lacking. Maximal rain rates for duration relevant to the watershed’s response time are also crucial parameters controlling the flood discharge. There is some understanding of how extreme rain rates change, but the magnitude and sign depend on the rain duration considered. Changes in frequency and the intra-seasonal distribution of precipitation events also affect flood regimes. Finally, watersheds of different properties are sensitive to different precipitation features, and thus, different watersheds may respond differently to global warming. In this talk, we will present the complexity of flood response under global warming and then focus on two questions: 1) how does global warming affect heavy precipitation events (HPEs) in the eastern Mediterranean, and 2) how these effects are imprinted in the resulting floods in small-medium Mediterranean watersheds.
We simulated 41 eastern Mediterranean HPEs with the high-resolution weather research and forecasting (WRF) model. Each event was simulated twice: under historical conditions and at the end of the 21st-century conditions (RCP8.5 scenario) using the “pseudo global warming” approach. Comparison of precipitation patterns from the paired simulations revealed that heavy precipitation events in our region are expected to become drier and more spatiotemporally concentrated, i.e., we expect higher rain rates on smaller coverage areas and shorter storm durations that, in total, yield lower amounts of rainfall.
These effects have some contradicting signs, and their full hydrological impact on streamflow peak discharge and volume was further explored. Ensembles of spatially-shifted rainfall data from the simulated HPEs were input to a high-resolution distributed hydrological model (GB-HYDRA) representing four small-medium-size watersheds (18–69 km2) in the eastern Mediterranean (Ramot Menashe). Flow volume is significantly reduced in future HPEs, while the change in flood peak is more complicated due to the combined effect of precipitation amount (decreasing) and precipitation rate (increasing). For the watersheds examined in this research, which are mostly agricultural, flood peaks at the watershed outlets are mostly reduced. The dynamics of flood generation at sub-watersheds of different sizes and properties are further examined in this research to understand scenarios for lowering or increasing flood peaks. This study emphasizes that detecting and quantifying global warming impact on space-time precipitation patterns is essential for flood regime projection. -
Date:20MondayMay 2024Colloquia
Designing nanoparticles for biological environments: from quantum sensing to gene medicine
More information Time 11:00 - 12:15Location Gerhard M.J. Schmidt Lecture HallLecturer Prof. Petr Cigler
Institute of Organic Chemistry and Biochemistry, Czech Academy of SciencesOrganizer Department of Chemical and Biological PhysicsHomepage Contact Abstract Show full text abstract about The use of nanoparticles in diagnostics, therapeutics and im...» The use of nanoparticles in diagnostics, therapeutics and imaging has revolutionized these fields with new properties not available with small molecules. Nanoparticle interface provide possibilities for polyvalent and independent attachment of different molecules serving as recognition/targeting structures, optical probes, spin probes or catalysts. However, nanoparticles operating in biological environments require precise control of multiple factors related to surface chemistry and their composition. To avoid for example aggregation, off-target interactions, and protein corona formation, appropriate interface design is essential. This talk will present general nanoparticle design strategies and specific examples including nanodiamonds and lipid nanoparticles. -
Date:20MondayMay 2024Lecture
Special Guest Seminar
More information Time 11:00 - 12:00Title Tissue Stem Cells: Making Choices and Living with Them in Good Times and BadLocation Dolfi and Lola Ebner AuditoriumLecturer Prof. Elaine FuchsOrganizer Department of Immunology and Regenerative BiologyContact -
Date:20MondayMay 2024Lecture
Foundations of Computer Science Seminar
More information Time 11:15 - 12:15Title Online Edge ColoringLocation Jacob Ziskind Building
Room 155Lecturer David Wajc
TechnionOrganizer Department of Computer Science and Applied Mathematics
SeminarContact Abstract Show full text abstract about Vizing’s Theorem provides an algorithm that edge colors any ...» Vizing’s Theorem provides an algorithm that edge colors any graph of maximum degree Δ using Δ 1 colors, which is necessary for some graphs, and at most one higher than necessary for any graph. In online settings, the trivial greedy algorithm requires 2Δ-1 colors, and Bar-Noy, Motwani and Naor in the early 90s showed that this is best possible, at least in the low-degree regime. In contrast, they conjectured that for graphs of superlogarithmic-in-n maximum degree, much better can be done, and that even (1 o(1))Δ colors suffice online. This would make edge coloring a rare problem, for which "online is (nearly) as easy as offline". In this talk I will outline the history of this conjecture, and its recent resolution, together with extensions of a flavor resembling classic and recent results on *list* edge-coloring and “local” edge-coloring.
Talk based in part on joint works with many wonderful and colorful collaborators, including Sayan Bhattacharya, Joakim Blikstad, Ilan R. Cohen, Fabrizio Grandoni, Seffi Naor, Binghui Peng, Amin Saberi, Aravind Srinivasan, Ola Svensson and Radu Vintan.
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Date:21TuesdayMay 2024Lecture
Molecular-level insights into light-induced reactions in biological systems from multiscale simulations
More information Time 14:00 - 15:00Location Gerhard M.J. Schmidt Lecture HallLecturer Dr. Igor Shapiro
Hebrew UniversityOrganizer Department of Chemical and Structural BiologyContact -
Date:22WednesdayMay 2024Lecture
LS Luncheon
More information Time 12:00 - 14:00Location Nella and Leon Benoziyo Building for Biological Sciences
AuditoriumLecturer Prof. Neta Regev RudzkiOrganizer Life SciencesContact -
Date:22WednesdayMay 2024Lecture
Spotlight on Science
More information Time 13:00 - 14:00Title Structure-function relationship as a key to deciphering neural codeLocation Gerhard M.J. Schmidt Lecture HallLecturer Alon Rubin
Dr.Organizer Science for All Unit
Staff Scientists SeminarContact -
Date:23ThursdayMay 2024Lecture
To be announced
More information Time 10:30 - 11:30Location Nella and Leon Benoziyo Building for Biological Sciences
AuditoriumLecturer Dr. Alexander von Appen
Max Planck Institute of Molecular Cell Biology and Genetics, GermanyOrganizer Department of Biomolecular SciencesContact Details Show full text description of Host: Ori Avinoam...» Host: Ori Avinoam -
Date:23ThursdayMay 2024Colloquia
Physics Colloquium
More information Time 11:15 - 12:30Title TBALocation Edna and K.B. Weissman Building of Physical Sciences
AuditoriumLecturer Prof. Hadar Steinberg
Hebrew UniversityOrganizer Department of Condensed Matter PhysicsContact Details Show full text description of Refreshments at 11:00...» Refreshments at 11:00Abstract Show full text abstract about TBA ...» TBA -
Date:23ThursdayMay 2024Lecture
Vision and AI
More information Time 12:15 - 13:15Title 3D Motion Synthesis and ControlLocation Jacob Ziskind Building
Lecture Hall - Room 1Lecturer Sigal Raab
TAUOrganizer Department of Computer Science and Applied Mathematics
SeminarContact Abstract Show full text abstract about Human motion is a fundamental attribute, underlying human ac...» Human motion is a fundamental attribute, underlying human actions, gestures, and behavior. Research of human motion has a wide range of applications, from medical simulations, through security, to entertainment. While the domain of deep learning for RGB image analysis has received huge attention, the domain of motion manipulation using DNNs, and more recently diffusion models, is in its infancy, and holds many scientific opportunities yet to be discovered.
Moreover, motion is challenging due to its irregular structure, diverse angles, and the expense and complexity of obtaining high-quality data. My research focuses on generative tasks such as motion synthesis and motion editing using deep neural networks. In the upcoming talk, I will discuss the building blocks used for motion synthesis and elaborate on various works that utilize diffusion models for synthesis and editing tasks. Each work addresses different aspects of the motion domain and involves various controls and tasks.
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Date:23ThursdayMay 2024Lecture
A guest lecture by Prof. Sarab Abu-Rabia Queder
More information Time 13:00 - 14:15Location Gerhard M.J. Schmidt Lecture HallLecturer Prof. Sarab Abu-Rabia QuederContact -
Date:23ThursdayMay 2024Lecture
Geometric Functional Analysis and Probability Seminar
More information Time 13:30 - 14:30Title Metric functional boundaries of groupsLocation Jacob Ziskind Building
Room 155Lecturer Ariel Yadin
BGUOrganizer Department of Mathematics
SeminarContact Abstract Show full text abstract about Based on works of Busemann and Gromov, Anders Karlsson has p...» Based on works of Busemann and Gromov, Anders Karlsson has proposed a theory of “metric functionals” on a general metric space, as a replacement for linear functionals when there is no linear structure. for discrete spaces, these identify with “horofunctions”. We will discuss some aspects of these objects for “well suited” metrics on discrete groups. We are mainly interested in the interaction between the geometry and the algebraic properties of the group. for example, it seems that metric functionals can be useful in studying the structure of “small” groups, and understanding the existence of (virtual) characters. I am not assuming familiarity with any of the above notions, and plan to properly define everything presented in the talk. This is based on joint works with Liran Ron-George.
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Date:23ThursdayMay 2024Academic Events
Scientific Council Meeting
More information Time 14:00Location The David Lopatie Conference Centre
Kimmel AuditoriumContact -
Date:27MondayMay 2024Lecture
Special Guest Seminar with Prof. Ehud Isacoff
More information Time 10:00 - 11:00Title "Single molecule analysis of glutamate receptor conformational dynamics"Location Arthur and Rochelle Belfer Building for Biomedical Research
Botnar AuditoriumLecturer Prof. Ehud IsacoffOrganizer Department of Molecular NeuroscienceContact -
Date:27MondayMay 2024Colloquia
AI (R)Evolution in (Quantum) Chemistry and Physics
More information Time 11:00 - 12:15Title Annual Pearlman LectureLocation Gerhard M.J. Schmidt Lecture HallLecturer Prof. Alexandre Tkatchenko
Theoretical Chemical Physics, University of LuxembourgOrganizer Department of Molecular Chemistry and Materials ScienceHomepage Contact Abstract Show full text abstract about Learning from data has led to paradigm shifts in a multitude...» Learning from data has led to paradigm shifts in a multitude of disciplines, including web, text and image search and generation, speech recognition, as well as bioinformatics. Can machine learning enable similar breakthroughs in understanding (quantum) molecules and materials? Aiming towards a unified machine learning (ML) model of molecular interactions in chemical space, I will discuss the potential and challenges for using ML techniques in chemistry and physics. ML methods can not only accurately estimate molecular properties of large datasets, but they can also lead to new insights into chemical similarity, aromaticity, reactivity, and molecular dynamics. For example, the combination of reliable molecular data with ML methods has enabled a fully quantitative simulation of protein dynamics in water (https://arxiv.org/abs/2205.08306). While the potential of machine learning for revealing insights into molecules and materials is high, I will conclude my talk by discussing the many remaining challenges. -
Date:27MondayMay 2024Lecture
Towards quantitative biology of developmental abnormalities
More information Time 13:00 - 14:00Location Arthur and Rochelle Belfer Building for Biomedical Research
Botnar AuditoriumLecturer Prof. Stanislav Shvartsman
Dept of Molecular Biology Princeton UniversityContact Details Show full text description of Host: Prof. Benny Shilo ...» Host: Prof. Benny ShiloAbstract Show full text abstract about Developmental disorders are severely understudied, in spite ...» Developmental disorders are severely understudied, in spite of their alarmingly high incidence, with 1 in 6 U.S. children having one or more disabilities or developmental delays. The main challenge is the design of statistically powered studies that can disentangle numerous genetic and environmental factors. We have been working towards addressing this challenge for the developmental abnormalities associated with the germline mutations within the ERK cascade. Focusing on mutations that affect MEK, a kinase that activates ERK, we demonstrated how studies of human mutations in Drosophila can answer the long-standing questions in the field. Specifically, we established how pathogenic mutations affect an isolated MEK protein, demonstrated how they disrupt the normal process of MEK activation in the cell, and quantified their effects on ERK signaling in embryos. More recently, our work shed light on the origins of phenotypic variability in the ERK-associated developmental disorders, demonstrating that they can be of purely stochastic origin. Given the generality of our approach, it should be applicable to other developmental abnormalities associated with genetically deregulated cell signaling. -
Date:28TuesdayMay 2024Lecture
To be announced
More information Time 09:15 - 10:15Location Nella and Leon Benoziyo Building for Biological Sciences
CafeteriaLecturer Eyal Zoler
Department of Biomolecular SciencesOrganizer Department of Biomolecular SciencesContact Details Show full text description of Host: Gideon Schreiber...» Host: Gideon Schreiber -
Date:28TuesdayMay 2024Lecture
How to Enhance Sex Determination?
More information Time 14:00 - 15:00Location Gerhard M.J. Schmidt Lecture HallLecturer Dr. Nitzan Gonen
The Mina and Everard Goodman Faculty of Life Sciences Institute of Nanotechnology and Advanced Materials, Bar-Ilan UniversityOrganizer Department of Chemical and Structural BiologyContact -
Date:29WednesdayMay 2024Lecture
Phd Defense Seminar- Hagar Fox
More information Time 09:30Title Unravelling key genes involved in carbohydrate regulation and dynamics in trees, and the link to tree performance under drought stressLocation Nella and Leon Benoziyo Building for Biological Sciences
AuditoriumLecturer Hagar FoxOrganizer Department of Plant and Environmental SciencesContact