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פברואר 05, 2018
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Date:16שלישיספטמבר 2025הרצאה
EPS AI discussion (via zoom): Advances in Inferring Air Quality from Global to Local Scales using Deep Learning Constrained by Satellite Remote Sensing and Modeling
More information שעה 16:00 - 17:00מיקום via zoomמרצה Randall Martin מארגן המחלקה למדעי כדור הארץ וכוכבי הלכתתקציר Show full text abstract about Human exposure to atmospheric aerosols is increasingly recog...» Human exposure to atmospheric aerosols is increasingly recognized as the leading global environmental determinant of health and longevity. However, ground-based monitoring remains sparse in many regions of the world. Deep learning offers immense potential to advance understanding of air quality by leveraging large satellite remote sensing datasets. However, the spatial heterogeneity and autocorrelation of ground-based measurements pose challenges to the training and testing of algorithms for true out of sample prediction. Thus, algorithms benefit from additional process-based constraints from a chemical transport model and targeted ground-based measurements of aerosol chemical composition. This talk will highlight recent advances in applying deep learning by building on satellite remote sensing, global modeling, and ground-based measurements to improve understanding of air quality and planetary health from global toward urban scales -
Date:17רביעיספטמבר 2025הרצאה
2025-2026 Spotlight on Science Seminar
More information שעה 12:30 - 14:00כותרת Unveiling the Invisible: XRM/Micro-CT and its Applicationsמיקום בניין ארתור ורושל בלפר למחקר ביורפואי
Botnar Auditoriumצרו קשר -
Date:18חמישיספטמבר 2025הרצאה
Geometric Functional Analysis and Probability Seminar
More information שעה 13:30 - 14:30כותרת Curvature-Dimension for Autonomous Lagrangiansמיקום בניין יעקב זיסקינד
Room 155 - חדר 155מרצה Rotem Assouline
WISמארגן המחלקה למדעי המחשב ומתמטיקה שימושיתצרו קשר תקציר Show full text abstract about In this talk, we will demonstrate how the celebrated connect...» In this talk, we will demonstrate how the celebrated connection between Ricci curvature, optimal transport, and geometric inequalities such as the Brunn-Minkowski inequality, extends to the setting of general Lagrangians on weighted manifolds. As examples, we will consider classical (mechanical and electromagnetic) Lagrangians on Riemannian manifolds. In particular, we will state a generalization of the horocyclic Brunn-Minkowski inequality to complex hyperbolic space of arbitrary dimension, and a new Brunn-Minkowski inequality for contact magnetic geodesics on odd-dimensional spheres. -
Date:18חמישיספטמבר 2025הרצאה
A Deep Dive into Immune Tolerance
More information שעה 14:00 - 15:00מיקום בניין ע"ש מקס ולילאן קנדיוטי
Auditoriumמרצה Dr. Ranit Kedmi מארגן המכון לחקר הטיפול בסרטן עש דואק -
Date:30שלישיספטמבר 2025הרצאה
The Clore Center for Biological Physics
More information שעה 10:15 - 11:15כותרת Comparative metagenomics using microbiome-wide sequence graphsמיקום ספרית הפיסיקה על שם נלה וליאון בנוזיומרצה Dr. Tal Korem
refreshments will be served at 9:45צרו קשר תקציר Show full text abstract about Identifying microbial genomic factors that underlie importan...» Identifying microbial genomic factors that underlie important phenotypes is a key goal of microbiological and microbiome research. Current approaches for this goal, however, cannot tap into the wealth of genomic information in a systematic manner, particularly in microbes that are not well-characterized. I will present a new conceptual and methodological approach for analyzing microbial communities using multi-sample sequence graphs. Our results demonstrate that this approach captures sequence and variant information more accurately than traditional approaches, provides graphs that are more suitable for comparative analyses, and is computationally tractable. I will end by demonstrating an application for predicting gut colonization trajectories of Vancomycin-resistant Enterococcus. Overall, our results underscore the value of graph-based frameworks for comparative metagenomic analyses. -
Date:01רביעיאוקטובר 2025הרצאה
students seminar series- Azrieli
More information שעה 10:30 - 12:30מיקום בניין קמיליה בוטנארצרו קשר -
Date:15רביעיאוקטובר 2025הרצאה
Foundations of Computer Science Seminar
More information שעה 11:15 - 12:30כותרת ReLU networks and polytopesמיקום בניין יעקב זיסקינדמרצה Amir Yehudayof
Technion and the University of Copenhagenמארגן המחלקה למדעי המחשב ומתמטיקה שימושיתצרו קשר תקציר Show full text abstract about ReLU networks are a standard example of neural networks. We ...» ReLU networks are a standard example of neural networks. We will discuss the expressivity of neural networks, focusing on their depth. The plan is to start with a general introduction and a survey of basic results, including the duality between ReLU networks and a model for constructing polytopes. We will then discuss polytopes and discuss how their properties can help us understand the depth of neural networks.
Based on joint works with Bakaev, Brunck, Hertrich and Stade. -
Date:15רביעיאוקטובר 2025הרצאה
Machine Learning and Statistics Seminar
More information שעה 11:15 - 12:15כותרת ReLU networks and polytopesמיקום בניין יעקב זיסקינדמרצה Amir Yehudayof
Technion and the University of Copenhagenמארגן המחלקה למדעי המחשב ומתמטיקה שימושיתצרו קשר תקציר Show full text abstract about ReLU networks are a standard example of neural networks. We ...» ReLU networks are a standard example of neural networks. We will discuss the expressivity of neural networks, focusing on their depth. The plan is to start with a general introduction and a survey of basic results, including the duality between ReLU networks and a model for constructing polytopes. We will then discuss polytopes and discuss how their properties can help us understand the depth of neural networks.
Based on joint works with Bakaev, Brunck, Hertrich and Stade. -
Date:16חמישיאוקטובר 2025כנסים
Affinity and Biorecognition- Meir Wilchek 90th Birthday
More information שעה 08:00 - 08:00כותרת Affinity and Biorecognition- Meir Wilchek 90th Birthdayמיקום מרכז כנסים על-שם דויד לופאטייושב ראש Ronen Alonצרו קשר -
Date:19ראשוןאוקטובר 2025הרצאה
Special Guest Seminar
More information שעה 11:00 - 12:00כותרת Dissecting Alzheimer’s Disease Risk Genes: Insights from Immune Genetic Perturbationsמיקום בניין ע"ש מקס ולילאן קנדיוטי
Auditoriumמרצה Dr. Neta Rosenzweig מארגן המחלקה לנוירוביולוגיה מולקולרית , המחלקה לאימונולוגיה ורגנרציה ביולוגיתצרו קשר -
Date:20שניאוקטובר 2025הרצאה
The Clore Center for Biological Physics
More information שעה 13:15 - 14:15כותרת Fluctuations and large deviations of the current in diffusive systemsמיקום ספרית הפיסיקה על שם נלה וליאון בנוזיומרצה Professor Bernard Derrida
Refreshments at 12:45צרו קשר תקציר Show full text abstract about For diffusive systems (i.e., systems which satisfy ...» For diffusive systems (i.e., systems which satisfy Fourier's law or Fick's law) maintained in a non-equiilibrium steady state by contact with two heat baths or two reservoirs, the macroscopic fluctuation theory developed over the last 25 years has become a major tool to calculate the fluctuations and the large deviation function of the heat or of the particle currents. After a review of the main achievements of the theory, I will try to list some open issues. In particular, although the theory predicts the same large deviationfunction of the current in all dimensions, numerical calculations exhibit some small discrepancy in space dimension d > 2.This talk will try to explain the origin of these discrepancies.work in collaboration with Thierry Bodineau -
Date:21שלישיאוקטובר 2025הרצאה
Weizmann Ornithology monthly lecture
More information שעה 14:10 - 15:30מיקום Benoziyo biochemistry
591C between eleevatorsמרצה Uri Moran
Bird club meetingצרו קשר -
Date:22רביעיאוקטובר 2025הרצאה
Developmental Club Series 2025-26
More information שעה 10:00 - 11:00כותרת Signaling Induced Plasticity in Mouse Naive ESCs Enables Direct and Transgene-Free Generation of Synthetic Embryosמיקום Botnar auditoriumמרצה Dr. Jacob Hanna -
Date:22רביעיאוקטובר 2025הרצאה
2025-2026 Spotlight on Science Seminar Series - Dr. Xiao-Meng Sui (Department of Chemical Research Support)
More information שעה 12:30 - 14:00כותרת Unveiling the Invisible: XRM/Micro-CT and its Applicationsמיקום אולם הרצאות ע"ש גרהרד שמידטמרצה Xiaomeng Sui צרו קשר תקציר Show full text abstract about X-ray microscopy (XRM) or X-ray micro computed tomography (m...» X-ray microscopy (XRM) or X-ray micro computed tomography (micro-CT) is a non-destructive and noninvasive imaging technique that uses X-rays to characterize cross-sectional and three-dimensional internal structures. While CT was initially developed for medical imaging, the need for higher resolution and the advancement of technology led to the creation of micro-CT in the early 1980s, specifically for evaluating material structure and other applications requiring higher detail.In this talk, I will introduce XRM, its brief history and basic principles, along with some examples of applications. -
Date:23חמישיאוקטובר 2025הרצאה
In vivo targeted and deterministic single cell cancer induction
More information שעה 14:00 - 15:00מיקום Candiotty
Auditoriumמרצה Prof. David Bensimon מארגן המכון לחקר הטיפול בסרטן עש דואק -
Date:23חמישיאוקטובר 2025הרצאה
Development of Fluorescence- and Bioluminescence-Based Methods to Monitor and Modulate Sphingolipid Metabolism in Living Cells
More information שעה 14:00 - 15:00מיקום בניין פרלמן למדעי הכימיה
404מרצה Prof. Christoph Arenz מארגן המחלקה לביולוגיה מבנית וכימית -
Date:26ראשוןאוקטובר 2025הרצאה
Lunar Polar Volatiles
More information שעה 11:00 - 12:00מיקום בניין המנהלה ע"ש סטון
Zacks hallמרצה Oded Aharonson מארגן המחלקה למדעי כדור הארץ וכוכבי הלכתתקציר Show full text abstract about Lunar volatiles, especially water, hold the key to sustainin...» Lunar volatiles, especially water, hold the key to sustaining long-term human presence on the Moon and beyond. I will cover the latest discoveries in volatile stability, distribution, sources, and transport. Due to the Moon's monotonic decrease in spin axis obliquity, perennially shadowed regions near the poles have shrunk with time. Thus, comparing the observations against theoretical models affords the opportunity to constrain the history of ice accumulation in these regions. These constraints offer both fundamental insights and practical value. -
Date:27שניאוקטובר 2025סימפוזיונים
Phonons: Their role in thermodynamics, and other reasons why they are interesting
More information שעה 11:00 - 12:15מיקום אולם הרצאות ע"ש גרהרד שמידטמרצה Prof. Brent Fultz
Brent Fultz is the Rawn Professor of Materials Science and Applied Physics at the California Institute of Technology. He received his B.Sc. from MIT, and his Ph.D. from U. C. Berkeley. After a position at Lawrence Berkeley National Laboratory, Fultz started at Caltech in 1985. Fultz won the 2016 William Hume-Rothery Award of TMS, and was elected Fellow of the Neutron Scattering Society of America in 2016, Fellow of the American Physical Society in 2017, and Fellow of TMS in 2018. Fultz has authored or co-authored approximately 400 publications, including graduate-level textbooks Transmission Electron Microscopy and Diffractometry of Materials (4th Ed with Jim Howe), and Phase Transitions in Materials (2nd Ed).דף בית תקציר Show full text abstract about At modest temperatures, and especially above 1000 K, most of...» At modest temperatures, and especially above 1000 K, most of the entropy of solids comes from atomic vibrations. In 1907, Einstein proposed a quantized harmonic oscillator as a starting point. Today, normal modes of crystal vibrations are quantized, and the quanta are called "phonons." Phonons in crystals were first measured by inelastic neutron scattering in the 1950s. Using inelastic neutron scattering and electronic structure calculations, we have compared the entropy from phonons to the entropy obtained by calorimetry. In short, excellent agreement is found when all known sources of entropy are included, such as from electrons, spins, and interactions between phonons, electrons, and spins. Interactions that cause only small departures from harmonic behavior are treated with many-body perturbation theory. Neutron scattering revealed new anharmonic features in the phonon spectra of NaBr and Cu2O. These anharmonic features, such as phonon frequency doubling and intermodulation sidebands, can be understood with molecular dynamics or methods based on the Heisenberg-Langevin equation or the Schrödinger-Langevin equation. For Cu2O and ZnO, we found diffuse inelastic intensity (DII) at high energies, well above the phonon bands. This DII originates from brief anharmonic interactions between atoms as they vibrate, and is a new probe of anharmonic interatomic potentials. -
Date:27שניאוקטובר 2025הרצאה
Superalgebra Theory and Representations Seminar
More information שעה 13:00 - 14:00כותרת Stable Representations of Symmetric Groups on Polynomials, and Actions on Eventually Symmetric Functionsמיקום בניין יעקב זיסקינד
Room 155 - חדר 155מרצה Shaul Zemel
HUJIמארגן המחלקה למדעי המחשב ומתמטיקה שימושיתצרו קשר תקציר Show full text abstract about Abstract: Haglund, Rhoades, and Shimozono generalized the co...» Abstract: Haglund, Rhoades, and Shimozono generalized the co-invariant quotient $R_n$ of Borel, as a representation of the symmetric group, to quotients $R_{n,k}$. Gillespie and Rhoades constructed higher Specht bases for these quotients, using the higher Specht polynomials of Ariki, Terasoma, and Yamada. We show how to decompose these quotients into ones that sit inside natural stable representations, which have explicit limits as representations of infinite symmetric groups on eventually symmetric functions. -
Date:27שניאוקטובר 2025הרצאה
Biochemical remodeling of phytoplankton cell composition under climate change
More information שעה 13:00 - 14:00מיקום בניין המנהלה ע"ש סטון
Zacks Hallמרצה Shlomit Sharoni מארגן המחלקה למדעי כדור הארץ וכוכבי הלכתתקציר Show full text abstract about The macromolecular composition of phytoplankton shapes the n...» The macromolecular composition of phytoplankton shapes the nutrition available to marine ecosystems and regulates the interwoven global cycles of carbon and nutrients. Despite these fundamental roles, there are currently no mechanistic, predictive models of the global distribution of phytoplankton macromolecular composition and its variation in response to environmental changes. Here, we simulate the cellular allocation of proteins, carbohydrates, and lipids in a global ocean model in the present day and over the 21st century under a climate change scenario. Our simulations indicate systematic spatial variations in phytoplankton macromolecular composition, which are consistent with available observations. Our model simulations further suggest variable geographic responses to climate change. Specifically, phytoplankton in polar regions are projected to have more carbohydrates and lipids at the expense of proteins, due to warming and relief from light limitation. We compiled and analyzed in situ macromolecular measurements of polar phytoplankton spanning several decades, finding trends consistent with our model predictions. Our findings indicate that changes in the macromolecular composition of phytoplankton can serve as indicators of shifting environmental conditions. Such changes will reshape the nutritional landscape at the base of the marine food web and alter global biogeochemical cycles.