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  • Date:30ראשוןדצמבר 2018

    TBA

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    שעה
    15:00 - 16:00
    מיקום
    בניין ארתור ורושל בלפר למחקר ביורפואי
    Botnar Auditorium
    מרצה
    Dr. Anna Vaprik. Mr. Shaul Lerner
    Harvard Medical School; Department of Biological Regulation, WIS, Israel
    מארגן
    מדעי החיים
    Metabollic Research Forum
    צרו קשר
    הרצאה
  • Date:31שנידצמבר 2018

    Foundations of Computer Science Seminar

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    שעה
    14:30 - 16:00
    כותרת
    Static Data Structure Lower Bounds Imply Rigidity.
    מיקום
    בניין יעקב זיסקינד
    Room 155
    מרצה
    Omri Weinstein
    Columbia University
    מארגן
    הפקולטה למתמטיקה ומדעי המחשב
    Faculty of Mathematical Sciences Seminar
    צרו קשר
    פרטים נוספיםShow full text description of We show that static data structure lower bounds in the group...»
    We show that static data structure lower bounds in the group (linear) model imply semi-explicit lower bounds on matrix rigidity. In particular, we prove that an explicit lower bound of t ≥ ω(log^2 n) on the cell-probe complexity of linear data structures in the group model, even against arbitrarily small linear space (s = (1 ε)n), would already imply a semi-explicit (P^NP) construction of rigid matrices with significantly better parameters than the current state of art (Alon, Panigrahy, and Yekhanin, 2009). Our result further asserts that polynomial (t ≥ n^δ) data structure lower bounds against near-optimal space, would imply super-linear circuit lower bounds for log-depth linear circuits (which would close a four-decade open question). In the succinct space regime (s = n o(n)), we show that any improvement on current cell-probe lower bounds in the linear model would also imply new rigidity bounds. Our main result relies on a new connection between the “inner” and “outer” dimensions of a matrix (Paturi and Pudlak, 2006), and on a new worst-to-average case reduction for rigidity, which is of independent interest.

    Joint work with Zeev Dvir (Princeton) and Alexander Golovnev (Harvard).
    הרצאה
  • Date:01שלישיינואר 2019

    Mathematical Analysis and Applications Seminar

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    שעה
    11:15 - 12:30
    כותרת
    Stability of some super-resolution problems
    מיקום
    בניין יעקב זיסקינד
    Room 1
    מרצה
    Dmitry Batenkov
    MIT
    מארגן
    הפקולטה למתמטיקה ומדעי המחשב
    Faculty of Mathematical Sciences Seminar, המחלקה למדעי המחשב ומתמטיקה שימושית
    Faculty of Mathematical Sciences Seminar, המחלקה למתמטיקה
    Faculty of Mathematical Sciences Seminar
    צרו קשר
    פרטים נוספיםShow full text description of The problem of computational super-resolution asks to recove...»
    The problem of computational super-resolution asks to recover fine features of a signal from inaccurate and bandlimited data, using an a-priori model as a regularization. I will describe several situations for which sharp bounds for stable reconstruction are known, depending on signal complexity, noise/uncertainty level, and available data bandwidth. I will also discuss optimal recovery algorithms, and some open questions.
    הרצאה
  • Date:01שלישיינואר 2019

    Seminar in Geometry and Topology

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    שעה
    16:00 - 18:00
    כותרת
    Mean Curvature Flow of Surfaces
    מיקום
    בניין יעקב זיסקינד
    Room 1
    מרצה
    Or Hershkovits
    Stanford
    מארגן
    הפקולטה למתמטיקה ומדעי המחשב
    Faculty of Mathematical Sciences Seminar
    צרו קשר
    הרצאה
  • Date:02רביעיינואר 2019

    Stable structure of the Al-richest phases in the AT2Al20 alloys (where A = actinide/lanthanide/rare earth elements and T=transition metal)”

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    שעה
    11:00 - 12:00
    מיקום
    בניין פרלמן למדעי הכימיה
    Room 404
    מרצה
    Dr. Gili Yaniv
    Dept. Materials Engineering, BGU
    מארגן
    המחלקה לחומרים ופני שטח
    צרו קשר
    תקצירShow full text abstract about A-T-Al aluminides (where A = actinide/lanthanide/rare earth ...»
    A-T-Al aluminides (where A = actinide/lanthanide/rare earth elements and T=transition metal) were intensively studied due to their ability to form heavy fermion compounds that could possess unique physical properties [1-3, for example]. Although A-T-Al family contains hundreds of phases, they can be classified into only a few series of phases with isotypical structures. Al richest are: tetragonal ATxAl12-x (ThMn12 type), tetragonal AT2Al10 (CaCr2Al10 type), orthorhombic AT2Al10 (YbFe2Al10 type) and cubic AT2Al20 (CeCr2Al20 type). Due to the intimate link between structure and properties, in order to understand and enhance physical properties – exact atomic structure of these materials should be known. Such researches are performed usually using “trial and error” approach, e.g. cast and characterize, which could be time consuming. It would be of clear benefit to formulate a rule that could predict the relative stability of the structures that may form in the ternary Al-richest phases in the A-T-Al systems.
    Current research was conducted with an aim to understand the influence of A and T atom types on the formation of the stable structures in the AT2Al20 alloys. The work was performed systematically, investigating several AT2Al20 alloys both experimentally and by Density Functional theory (DFT) calculations. Study on the ThT2Al20 systems (where T=Ti, V, Cr, Mn and Fe) was previously performed by our group suggesting that the magnetic moment of T atoms can be used as a good descriptor of phase stability [4-5]. Now, we focus on the investigation of the AMn2Al20, where A elements were selected according to their electronic structure. Theoretical and experimental results were found to be in perfect agreement. By analyzing the density of states (DOS) we found that the different behavior of the 4f and 5f-shell electrons of the heavy atom, eventually determines which structure will be favorable [6].
    While studying these A-T-Al systems new unknown ternary phases were discovered: Th2Ni10Al15 [7] and Nd2Re3Al15. Since in both cases the alloys of an interest did not attain equilibrium state despite the prolonged heat treatments - they contained multiple phases. Therefore, electron crystallography methods were the only viable tool applicable for structure solution of these phases. In current research, electron diffraction tomography (EDT) approach was successfully used for solution of atomic structure of both phases.
    הרצאה
  • Date:03חמישיינואר 2019

    Pelletron meeting - by invitation only

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    צרו קשר
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  • Date:03חמישיינואר 2019

    Smaller is better

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    שעה
    11:00
    מיקום
    בניין ארתור ורושל בלפר למחקר ביורפואי
    Botnar Auditorium
    מרצה
    Dr. Klaus Herick
    Meet ChromoTek: Nanobodies for Immunoprecipitation, ChIP, MS & Imaging
    מארגן
    המחלקה לגנטיקה מולקולרית
    צרו קשר
    פרטים נוספיםShow full text description of In this short talk, we will give an introduction to the tec...»
    In this short talk, we will give an introduction to the technology and the different application it can be used for. Stability make them ideal tools for a variety of biochemical experiments. They are sequenced, recombinant, monoclonal and have validated binding characteristics.
    הרצאה
  • Date:03חמישיינואר 2019

    TBA

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    שעה
    14:00 - 15:00
    כותרת
    Special Guest Seminar
    מיקום
    בניין ע"ש מקס ולילאן קנדיוטי
    Auditorium
    מרצה
    Katrien Vandoorne, PhD, DVM
    Assistant Professor Department of Biomedical Engineering Eindhoven University of Technology The Netherlands
    מארגן
    המחלקה לבקרה ביולוגית
    צרו קשר
    הרצאה
  • Date:03חמישיינואר 2019

    TBA

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    שעה
    14:00
    מיקום
    בניין משפחת זוסמן
    M. Magaritz Seminar Room
    מרצה
    Pei Li
    Department of Earth and Planetary Sciences Weizmann Institute of Science
    מארגן
    המחלקה למדעי כדור הארץ וכוכבי הלכת
    צרו קשר
    הרצאה
  • Date:06ראשוןינואר 2019

    TBA

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    שעה
    11:00
    מיקום
    בניין משפחת זוסמן
    M. Magaritz Seminar Room
    מרצה
    Simon Lock
    Harvard University
    מארגן
    המחלקה למדעי כדור הארץ וכוכבי הלכת
    צרו קשר
    הרצאה
  • Date:06ראשוןינואר 2019

    Waste to Energy Infrastructure – Will it happen in Israel?

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    שעה
    13:00 - 14:00
    כותרת
    SAERI - Sustainability and Energy Research Initiative
    מיקום
    אולם הרצאות ע"ש גרהרד שמידט
    מרצה
    Tamar Raviv
    Head of the Biodiversity and Open Spaces Division The Ministry of Environmental Protection
    מארגן
    מדרשת פיינברג
    Alternative Sustainable Energy Research Initiative (AERI)
    צרו קשר
    פרטים נוספיםShow 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
    Location: Benoziyo Building for Biological Sciences, room 690C
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  • Date:07שניינואר 201908שלישיינואר 2019

    The Department of Science Teaching Jubilee Celebration Conference

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    שעה
    08:00 - 08:00
    מיקום
    מרכז כנסים על-שם דויד לופאטי
    Kimmel Auditorium
    יושב ראש
    Anat Yarden
    מארגן
    המחלקה להוראת המדעים , סגן נשיא לפיתוח משאבים
    דף בית
    צרו קשר
    כנסים
  • Date:07שניינואר 2019

    Chemical and Biological Physics Guest Seminar

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    שעה
    11:00
    כותרת
    New Mathematics to Understand Life One Photon at a Time
    מיקום
    בניין פרלמן למדעי הכימיה
    Room 404
    מרצה
    Prof. Steve Pressé
    Dept of Physics, Arizona State University
    מארגן
    המחלקה לפיסיקה כימית וביולוגית
    צרו קשר
    תקצירShow full text abstract about Monitoring life in action—as it occurs in real time within t...»
    Monitoring life in action—as it occurs in real time within the cellular cytoplasm at the relevant single molecule scale—remains an important challenge. In order to see life unravel and monitor specific biomolecules as they diffuse and assemble in the cytoplasm, we create contrast with the cellular background by fluorescently labeling biomolecules. Yet the diffraction limit of light naively keeps us from peering into length scales comparable to those of single molecules. For this reason, the 2014 Chemistry Nobel Prize was awarded for separating signals from particles in time that cannot otherwise be separated in space to localize biomolecular structures to a precision beyond the diffraction limit. However, this process is slow and thus we compromise temporal resolution by separating signal in time. Here we present new Mathematics that make it possible to consider complex dynamical signals from which we can build a story of life in action starting from single, or very few, photons. The methods we present—motivated by the tools of Bayesian nonparametrics—show us how to achieve diffraction-limited tracking from signal previously considered insufficient. If time allows, we will discuss extensions of our methods to inferring diffusional dynamics from single photon arrivals from confocal imaging methods
    הרצאה
  • Date:08שלישיינואר 2019

    GTACS: Greater Tel Aviv Area Cryptography Symposium.

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    שעה
    08:00 - 08:00
    מיקום
    בניין יעקב זיסקינד
    יושב ראש
    Zvika Brakerski
    מארגן
    המחלקה למדעי המחשב ומתמטיקה שימושית
    צרו קשר
    כנסים
  • Date:08שלישיינואר 2019

    Chemical and Biological Physics Guest Seminar

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    שעה
    10:00
    כותרת
    Investigation of magnetoelectric coupling in some geometrically frustrated metal oxides
    מיקום
    בניין פרלמן למדעי הכימיה
    Room 404
    מרצה
    Indian Institute of Science Education and Research, Pune-INDIA
    מארגן
    המחלקה לפיסיקה כימית וביולוגית
    צרו קשר
    תקצירShow full text abstract about The magnetoelectric effect in solids refers to the induction...»
    The magnetoelectric effect in solids refers to the induction of magnetization with the application of an electric field or the induction of an electric polarization with the application of a magnetic field. Multiferroics are a special class of magnetoelectric materials with the coexistence of spontaneous magnetic and polar orders. In the past few decades, multiferroics are at the forefront of contemporary condensed matter physics. These materials have the potential for many practical applications including transducers and sensors for magnetic fields, spintronics, and four state logic energy-efficient memory devices. Geometrically frustrated magnets are promising materials where exotic arrangements of spins lead to the discovery of many interesting multiferroic properties. The low-dimensional geometrically frustrated magnets are natural playgrounds for various exotic spin arrangements. These systems can have varieties of spin arrangements like spin chains, ribbons, ladders, Kagome layers, and staircase-like spin patterns etc. In low-dimensional magnetic systems, the presence of complex interplay among the nearest and next-nearest atomic interactions, and large spin-orbit coupling leads to the generation of many complex magnetic and electric ground states. In my talk, I will present findings of magnetoelectricity in some geometrically frustrated metal oxides.
    הרצאה
  • Date:08שלישיינואר 2019

    Fluorescent Sensors and Imaging agents

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    שעה
    11:00 - 12:00
    מיקום
    בניין הלן ומילטון קימלמן
    Dov Elad Room
    מרצה
    Prof. Tony James
    University of Bath, UK
    מארגן
    המחלקה לכימיה אורגנית
    צרו קשר
    הרצאה
  • Date:08שלישיינואר 2019

    Seminar in Geometry and Topology

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    שעה
    16:00 - 18:00
    כותרת
    Random Knots
    מיקום
    בניין יעקב זיסקינד
    Room 1
    מרצה
    Chaim Even Zohar
    UC Davis
    מארגן
    הפקולטה למתמטיקה ומדעי המחשב
    Faculty of Mathematical Sciences Seminar, המחלקה למדעי המחשב ומתמטיקה שימושית
    Faculty of Mathematical Sciences Seminar, המחלקה למתמטיקה
    Faculty of Mathematical Sciences Seminar
    צרו קשר
    פרטים נוספיםShow full text description of Random curves in space and how they are knotted give an insi...»
    Random curves in space and how they are knotted give an insight into the behavior of "typical" knots and links. They have been studied by biologists and physicists in the context of the structure of random polymers. Several randomized models have been suggested and investigated, and many results have been obtained via computational experiment. The talk will begin with a review of this area.

    In work with Hass, Linial, and Nowik, we study knots based on petal projections, potholder diagrams, and more. We have found explicit formulas for the limit distribution of finite type invariants of random knots and links in the Petaluma model. I will discuss these results and sketch proof ideas as time permits.
    הרצאה
  • Date:09רביעיינואר 201910חמישיינואר 2019

    Protein expression and characterisation

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    שעה
    08:00 - 08:00
    מיקום
    מרכז כנסים על-שם דויד לופאטי
    יושב ראש
    Yoav Peleg
    דף בית
    צרו קשר
    כנסים
  • Date:09רביעיינואר 2019

    Developmental Club Series 2018-2019

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    שעה
    10:00
    מיקום
    בניין ארתור ורושל בלפר למחקר ביורפואי
    Botnar Auditorium
    מרצה
    Bruno Lemaitre
    מארגן
    המחלקה לגנטיקה מולקולרית
    Developmental Club
    צרו קשר
    הרצאה
  • Date:10חמישיינואר 2019

    Physics Colloquium

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    שעה
    11:15 - 12:30
    מיקום
    בניין הפיסיקה ע"ש עדנה וק.ב. וייסמן
    Auditorium
    מרצה
    Frank C. van den Bosch
    Yale
    מארגן
    הפקולטה לפיסיקה
    צרו קשר
    פרטים נוספיםShow full text description of 11:00 – coffee, tea, and more...»
    11:00 – coffee, tea, and more
    תקצירShow full text abstract about TBA ...»
    TBA
    סימפוזיונים

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