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תוצאות חיפוש לאירועים
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Date:26ראשוןמאי 2024הרצאה
The Clore Center for Biological Physics
More information שעה 13:15 - 14:30כותרת Phages vs bacteria warfare: co-evolution and intelligence gatheringמיקום המאיץ ע"ש קופלר במרכז קנדה לפיסיקה גרעיניתמרצה Prof. Yigal Meir
Ben-Gurion Universityמארגן מרכז לפיסיקה ביולוגית עש קלורצרו קשר פרטים נוספים Show full text description of Lunch will be served at 12:45...» Lunch will be served at 12:45תקציר Show full text abstract about The warfare between bacteria and phages - viruses that infec...» The warfare between bacteria and phages - viruses that infect bacteria - has been raging for billions of years. During this time both sides have evolved various attack and defense systems. In this talk I will describe 3 related projects: 1. Is there an optimal number of such defense or anti-defense systems? 2. How can different phages which prey on the same bacteria co-exist, in contradiction with the expected competitive exclusion? 3. Some phages have developed the ability to garner environmental information, enabling them to make more "intelligent" decisions. How much is such intelligence worth, in terms of other resources?
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Date:27שנימאי 2024הרצאה
Towards quantitative biology of developmental abnormalities
More information שעה 13:00 - 14:00מיקום בניין ארתור ורושל בלפר למחקר ביורפואי
Botnar Auditoriumמרצה Prof. Stanislav Shvartsman
Dept of Molecular Biology Princeton Universityצרו קשר פרטים נוספים Show full text description of Host: Prof. Benny Shilo ...» Host: Prof. Benny Shiloתקציר 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:28שלישימאי 2024הרצאה
To be announced
More information שעה 09:15 - 10:15מיקום בניין לביוכימיה על שם נלה וליאון בנוזיו
Cafeteriaמרצה Eyal Zoler
Department of Biomolecular Sciencesמארגן המחלקה למדעים ביומולקולרייםצרו קשר פרטים נוספים Show full text description of Host: Gideon Schreiber...» Host: Gideon Schreiber -
Date:28שלישימאי 2024הרצאה
Student Seminar
More information שעה 12:30 - 13:30מיקום בניין ע"ש מקס ולילאן קנדיוטי
Auditoriumמארגן המחלקה לאימונולוגיה ורגנרציה ביולוגיתצרו קשר -
Date:28שלישימאי 2024הרצאה
Vasosdynamics of cortical arterioles and what it informs us about neuronal activity
More information שעה 12:30 - 13:15מיקום אולם הרצאות ע"ש גרהרד שמידטמרצה Prof. David Kleinfeld
University of California at San Diegoמארגן המחלקה למדעי המוחצרו קשר פרטים נוספים Show full text description of Host: Dr. Yoav Livneh yoav.livneh@weizmann.ac.il For acce...» Host: Dr. Yoav Livneh yoav.livneh@weizmann.ac.il
For accessibility issues:naomi.moses@weizmann.ac.il -
Date:28שלישימאי 2024הרצאה
How to Enhance Sex Determination?
More information שעה 14:00 - 15:00מיקום אולם הרצאות ע"ש גרהרד שמידטמרצה Dr. Nitzan Gonen
The Mina and Everard Goodman Faculty of Life Sciences Institute of Nanotechnology and Advanced Materials, Bar-Ilan Universityמארגן המחלקה לביולוגיה מבנית וכימיתצרו קשר -
Date:29רביעימאי 2024הרצאה
Phd Defense Seminar- Hagar Fox
More information שעה 09:30כותרת Unravelling key genes involved in carbohydrate regulation and dynamics in trees, and the link to tree performance under drought stressמיקום בניין לביוכימיה על שם נלה וליאון בנוזיו
Auditoriumמרצה Hagar Foxמארגן המחלקה למדעי הצמח והסביבהצרו קשר -
Date:29רביעימאי 2024הרצאה
Machine Learning and Statistics Seminar
More information שעה 11:15 - 12:15כותרת First-Order Methods for Sparse Optimizationמיקום בניין יעקב זיסקינד
Room 1מרצה Nadav Hallak
Technionמארגן המחלקה למדעי המחשב ומתמטיקה שימושית
Seminarצרו קשר תקציר Show full text abstract about Sparse solutions play a crucial role in various fields due t...» Sparse solutions play a crucial role in various fields due to their compact representation, interpretability, robustness, and better generalization. This talk focuses on first-order methods for composite problems with an explicit sparsity expression, and the connection between the optimality conditions they achieve. I will show that the proximal-gradient operation can be implemented efficiently for classes of composite problems in spite of the sparsity element, and will present component-wise methods that achieve better solutions compared to the proximal-gradient. Finally, a conditional gradient based method that balances between the advantages and disadvantages of the proximal-gradient and the component-wise methods will be presented.
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Date:29רביעימאי 2024הרצאה
Measuring conformational equilibria in allosteric proteins with time-resolved tmFRET
More information שעה 14:00 - 15:00מיקום אולם הרצאות ע"ש גרהרד שמידטמרצה Prof. Sharona Gordon
Professor of Physiology & Biophysics, University of Washington School of Medicineמארגן המחלקה לביולוגיה מבנית וכימיתצרו קשר -
Date:30חמישימאי 2024הרצאה
Vision and AI
More information שעה 12:15 - 13:15כותרת TBAמיקום בניין יעקב זיסקינד
Lecture Hall - Room 1מרצה Hadas Orgad
Technionמארגן המחלקה למדעי המחשב ומתמטיקה שימושית
Seminarצרו קשר תקציר Show full text abstract about TBA ...» TBA
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Date:03שנייוני 2024סימפוזיונים
Arrays of noisy, coupled circadian clocks in a multicellular cyanobacterial organism; experiment and stochastic model
More information שעה 11:00 - 12:15מיקום אולם הרצאות ע"ש גרהרד שמידטמרצה Prof. Joel Stavans
Department of Physics of Complex Systems Faculty of Physics, WISמארגן המחלקה לפיסיקה כימית וביולוגיתדף בית צרו קשר תקציר Show full text abstract about Circadian clocks in unicellular phototrophic organisms are k...» Circadian clocks in unicellular phototrophic organisms are known to display remarkable reliability. In contrast, not much is known about how circadian clocks perform in a multicellular setting. Are clocks in multicellular cyanobacteria coupled and synchronized with one another? Are clocks entrained only by external cues? What is the spatial extent of synchronization? What is the role of cell-cell variations in copy numbers of molecules comprising the core clock (demographic noise) in setting the temporal pattern and its robustness? To tackle quantitatively these and other questions, we studied the dynamics of a circadian clock-controlled gene in Anabaena sp. PCC 7120, a multicellular cyanobacterium in which cells are arranged one after the other and coupled by protein channels, in a one-dimensional structure. Our real-time, single-cell level measurements showed significant synchronization and spatial coherence along filaments, and clock coupling mediated by cell-cell communication. Furthermore, we found significant variability in expression between different cells along filaments. A stochastic one-dimensional toy model of coupled clocks and their phosphorylation states shows that demographic noise can seed stochastic oscillations outside the region where deterministic limit cycles with circadian periods occur. The model reproduces the observed spatio-temporal coherence along filaments and provides a robust description of coupled circadian clocks in a multicellular organism, despite significant stochasticity in biomolecular reactions. Lastly, we carried out experiments in which developmental processes were induced. Our experiments showed that gene expression in different vegetative intervals along a developed filament was discoordinated, and that differentiation took place preferentially within a limited interval of the circadian clock cycle. The transition to multicellularity demanded coordination between clocks via cell-cell communication, to optimize fitness in the presence of significant demographic noise. -
Date:04שלישייוני 2024הרצאה
To be announced
More information שעה 10:00 - 11:00מיקום בניין לביוכימיה על שם נלה וליאון בנוזיו
Cafeteriaמרצה Gabriela Koifman
Department of Biomolecular Sciencesמארגן המחלקה למדעים ביומולקולרייםצרו קשר פרטים נוספים Show full text description of Host: Ofer Shoshani...» Host: Ofer Shoshani -
Date:04שלישייוני 2024הרצאה
TBA
More information שעה 14:00 - 15:00מיקום אולם הרצאות ע"ש גרהרד שמידטמרצה Dr. Lior Nissim
The Faculty of Medicine Hebrew Universityמארגן המחלקה לביולוגיה מבנית וכימיתצרו קשר -
Date:05רביעייוני 2024הרצאה
Memory consolidation and generalization during sleep
More information שעה 10:00 - 11:00מיקום בניין לחקר המוח על-שם נלה וליאון בנוזיומרצה Ella Bar-Student Seminar-PhD Thesis Defense
Prof. Rony Paz Lab & Prof. Yuval Nir, Tel Aviv Universityמארגן המחלקה למדעי המוחצרו קשר פרטים נוספים Show full text description of Student Seminar-PhD Thesis Defense For accessibility issu...» Student Seminar-PhD Thesis Defense
For accessibility issues: naomi.moses@weizmann.ac.il
תקציר Show full text abstract about During sleep, our memories are reactivated and consolidated ...» During sleep, our memories are reactivated and consolidated in an active process that significantly influences our memory and decision-making. In this talk, I will present two studies about sleep-memory consolidation. The first study investigated sleep memory consolidation's local versus global properties within the brain. By exploiting the unique functional neuroanatomy of olfactory system, we were able to manipulate sleep oscillations and enhance memories locally within a single hemisphere during sleep. These findings underscore the local nature of sleep memory consolidation, which can be selectively manipulated within the brain, thereby creating an important link between theories of local sleep and learning. The second research explored the relationship between generalization processes and sleep, acknowledging that overgeneralization of negative stimuli and disruptions in sleep quality contribute to anxiety and PTSD disorders. Specifically, we studied participants' responses to stimuli associated with positive, negative, or neutral outcomes. Our findings revealed significant correlations between brain activity, as detected by fMRI, during the association of a stimulus with an outcome and the perceptual generalization of these stimuli. While activity in limbic brain areas was correlated with immediate negative stimulus generalization, we observed that the activation in these areas predicted recovery and positively related generalization following sleep. Moreover, we identified specific sleep oscillations correlated with this recovery generalization using high-density EEG recordings. These results highlight the crucial role of sleep in both generalization processes and the restoration of balanced responses to stimuli. Understanding these mechanisms can offer valuable insights into developing therapeutic strategies for anxiety and PTSD.
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Date:05רביעייוני 2024הרצאה
ESR1 mutations: From Discovery to Clinical Practice
More information שעה 14:00 - 15:00מיקום בניין ע"ש מקס ולילאן קנדיוטי
Auditoriumמרצה Dr. Rinath Jeselsohn
Dana Farber Cancer Institute, Harvard Medical Schoolמארגן המכון לחקר הטיפול בסרטן עש דואקצרו קשר פרטים נוספים Show full text description of Meeting URL: https://weizmann.zoom.us/j/5065402023?pwd=a3Z6...» Meeting URL: https://weizmann.zoom.us/j/5065402023?pwd=a3Z6KzRCU0xJaUFoM2Y5emZwZm1oZz09
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Date:06חמישייוני 2024הרצאה
Molecular Neuroscience Trainees day 2024
More information שעה 08:30 - 16:00מיקום אולם ע"ש דולפי ולולה אבנרמארגן המחלקה לנוירוביולוגיה מולקולריתצרו קשר -
Date:06חמישייוני 2024הרצאה
Vision and AI
More information שעה 12:15 - 13:15כותרת LIPVOICER: Generating Speech From Silent Videos Guided By Lip-Readingמיקום בניין יעקב זיסקינד
Lecture Hall - Room 1מרצה Sharon Ganot
Bar-Ilan Universityמארגן המחלקה למדעי המחשב ומתמטיקה שימושית
Seminarצרו קשר תקציר Show full text abstract about Lip-to-speech involves generating a natural-sounding speech ...» Lip-to-speech involves generating a natural-sounding speech synchronized with a soundless video of a person talking. Despite recent advances, current methods still cannot produce high-quality speech with high levels of intelligibility for challenging and realistic datasets. This talk presents LipVoicer, a novel method that generates high-quality speech, even for in-the-wild and rich datasets, by incorporating the text modality. Given a silent video, we first predict the spoken text using a pre-trained lip-reading network. We then condition a diffusion model on the video and use the extracted text through a classifier-guidance mechanism where a pre-trained automatic speech recognition (ASR) serves as the classifier. We demonstrate the effectiveness of LipVoicer through human evaluation, which shows that it produces more natural and synchronized speech signals than competing methods (demo page: https://lipvoicer.github.io). The presented LipVoicer is a joint work of Yochai Yemini, Aviv Shamsian, Lior Bracha, Sharon Gannot, and Ethan Fetaya.
Bio:
Sharon Gannot obtained his Ph.D. in electrical engineering from Tel-Aviv University, Israel, in 2000. He is a full professor in the Faculty of Engineering at Bar-Ilan University, Israel. He serves as a senior area chair for IEEE Transactions on Audio, Speech, and Language Processing, a member of the senior editorial board of IEEE Signal Processing Magazine, a member of the editorial board of IEEE SPS Education Center, and the chair of the IEEE Signal Processing Society Data Science Initiative. Previously, he was chair of the IEEE Audio and Acoustic Signal Processing Technical Committee in 2017–2018. He has also held other roles, such as the general co-chair of the 2010 International Workshop on Acoustic Signal Enhancement and the 2013 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics. He is the general co-chair of Interspeech 2024, which will be held in September in Greece. His research interests include statistical signal processing and machine learning in the audio processing domain. The methods he develops utilize multi-microphone and multi-modal information. Applications include speech enhancement, noise reduction, speaker separation and diarization, dereverberation, speaker localization, and tracking. Sharon Gannot is the recipient of the 2022 European Association for Signal Processing Group Technical Achievement Award and a Fellow of the IEEE.
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Date:06חמישייוני 2024הרצאה
Geometric Functional Analysis and Probability Seminar
More information שעה 13:30 - 14:30כותרת TBDמיקום בניין יעקב זיסקינד
Room 155מרצה Alon Nishry
TAUמארגן המחלקה למתמטיקהצרו קשר תקציר Show full text abstract about TBD ...» TBD
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Date:06חמישייוני 2024הרצאה
Insights from germline and somatic replication repair deficiency on cancer initiation and immunotherapy
More information שעה 14:00 - 15:00מיקום בניין ע"ש מקס ולילאן קנדיוטי
Auditoriumמרצה Prof. Uri Tabori
Head, Neuroonconcology program Division of Haematology/Oncology The Hospital for Sick Children Toronto, ON, Canadaמארגן המכון לחקר הטיפול בסרטן עש דואק
Cancer Research Clubצרו קשר פרטים נוספים Show full text description of For joining remotely please use Zoom: https://weizmann.zoom....» For joining remotely please use Zoom: https://weizmann.zoom.us/j/5065402023?pwd=a3Z6KzRCU0xJaUFoM2Y5emZwZm1oZz09
Meeting ID: 506 540 2023
Password: 223081
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Date:09ראשוןיוני 2024הרצאה
Special Guest Seminar
More information שעה 10:00 - 11:00כותרת Combined multimodal single-synapse profiling of synaptic activity, multiprotein composition, and translationמיקום בניין ארתור ורושל בלפר למחקר ביורפואי
Botnar Auditoriumמרצה Dr. Reuven (Beny) Falkovich
MIT Department of Biological Engineeringמארגן המחלקה לנוירוביולוגיה מולקולריתצרו קשר תקציר Show full text abstract about The analog computation at the chemical synapse that underlie...» The analog computation at the chemical synapse that underlies cognition depends on a highly compartmentalized, tightly regulated, and complex network of interactions between synaptic activity and hundreds of proteins and the mechanisms that regulate them. For a top-down study of how the network operates in concert, I present a modular, versatile approach for combined imaging of multiprotein composition, activation states, ion and neurotransmitter fluxes, and mRNA translation across the same individual synapses. I will show how this approach extends to other subcellular systems such as mitochondria. I will discuss the use of Bayesian network inference to extract biological insight from high-dimensional, multimodal synapse distributions. Finally, I will present applications of this approach to identify convergent molecular phenotypes across autism and schizophrenia-associated genes, and for an in-depth study of the complex synaptic response to genetic and chemical perturbations of GluN2A.