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ספטמבר 12, 2014
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Date:01ראשוןפברואר 2015הרצאה
Biological Services Forum Seminar - Dr. Oded Singer
More information שעה 10:00 - 11:00מיקום בניין ארתור ורושל בלפר למחקר ביורפואימארגן המחלקה לתשתיות מחקר מדעי החייםצרו קשר -
Date:01ראשוןפברואר 2015הרצאה
The IceCube Puzzle
More information שעה 12:30 - 13:30מיקום בניין לפיזיקה על-שם נלה וליאון בנוזיומרצה Markus Ahlers מארגן מרכז לאסטרופיסיקה עש נלה וליאון בנוזיוצרו קשר תקציר Show full text abstract about Astrophysical neutrinos are unambiguous tracers of hadronic ...» Astrophysical neutrinos are unambiguous tracers of hadronic interactions of cosmic rays (CRs) in our Universe. With this in mind, high energy neutrino astronomy has long been anticipated to help uncover the orgin of high energy CRs. The recent detection of a flux of high-energy extra-terrestrial neutrinos by the IceCube Observatory is an important step in this direction. However, the low statistics and angular resolution of the signal makes an identification of the neutrino sources challenging. I will review various scenarios for the IceCube signal, ranging from exotic PeV dark matter decay to the more conventional candiate sources of high energy CRs. I will finally discuss various multi-messenger observations that can help us to solve the IceCube Puzzle. -
Date:01ראשוןפברואר 2015הרצאה
In Search of the Holy Grail of Fly Motion Vision
More information שעה 12:30 - 12:30מיקום אולם הרצאות ע"ש גרהרד שמידטמרצה Prof. Alexander Borst
Dept of Systems and Computational Neurobiology Max-Planck-Institute of Neurobiology Martinsried, Germanyמארגן המחלקה למדעי המוחצרו קשר תקציר Show full text abstract about Alexander Borst aims at understanding the foundations of inf...» Alexander Borst aims at understanding the foundations of information processing at the level of small neural circuits, focusing on the visual course control system in Drosophila. Borst’s lab uses a comprehensive approach , combining electron microscopy-aided anatomical reconstructions of the circuit, physiological characterization by both imaging and whole cell patch recordings, genetic circuit manipulation in behaving flies, computational modeling and last but not least, engineering of fly-inspired robots that implement the theoretical principles and test their functionality.
Borst’s outstanding research has yielded a very precise and detailed description of the circuit at the single cell resolution as well as a thorough understanding of the computations it performs.
Several of his major scientific contributions include the discovery that the direction of visually perceived motion is calculated following the Reichardt Model (Single & Borst, Science 1998), the separation of visual information in the fly brain into ON- and OFF-channels, similar to bipolar cells in the retina of vertebrate eyes (Jösch, Schnell, Raghu, Reiff & Borst, Nature 2010) and the existence of four types of neurons in each channel, tuned to one of the four cardinal directions (right, left, up, down) that project into four separate neuronal layers based on their preferred direction (Maisak et al, Nature 2013).
https://www.neuro.mpg.de/borst
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Date:01ראשוןפברואר 2015הרצאה
Morphogen patterning by Toll in a diffusible environment
More information שעה 13:00 - 13:00מיקום בניין ארתור ורושל בלפר למחקר ביורפואימרצה Michal Haskel-Ittah
Benny Shilo's group, Dept. of Molecular Geneticsצרו קשר -
Date:02שניפברואר 2015הרצאה
Foundations of Computer Science Seminar
More information שעה 02:30 - 04:00כותרת Improved NP-inapproximability for 2-variable Linear Equationsמיקום בניין יעקב זיסקינדמרצה Sangxia Huang
KTH Royal Institute of Technologyצרו קשר תקציר Show full text abstract about An instance of the E2-Lin(2) problem is a system of equation...» An instance of the E2-Lin(2) problem is a system of equations of the form "x_i x_j = b (mod 2)". Given such a system in which it is possible to satisfy all but an epsilon fraction of the equations, we would like to find an assignment that violates as few equations as possible. In this paper, we show that it is NP-hard to satisfy all but a C*epsilon fraction of the equations, for any C < 11/8 and 0 < epsilon -
Date:02שניפברואר 2015סימפוזיונים
"Quantum Design in Carbon Nanotubes"
More information שעה 11:00 - 12:30מיקום אולם הרצאות ע"ש גרהרד שמידטמרצה Prof. Shahal Ilani
Department of Condensed Matter Physics, WISמארגן הפקולטה לכימיהצרו קשר -
Date:02שניפברואר 2015הרצאה
Neural Basis of Motion Opponency in the Fly
More information שעה 13:00 - 13:00מיקום אולם הרצאות ע"ש גרהרד שמידטמרצה Prof. Alexander Borst
Dept of Systems and Computational Neurobiology Max-Planck-Institute of Neurobiology Martinsried, Germanyמארגן המחלקה למדעי המוחצרו קשר תקציר Show full text abstract about Alexander Borst aims at understanding the foundations of inf...» Alexander Borst aims at understanding the foundations of information processing at the level of small neural circuits, focusing on the visual course control system in Drosophila. Borst’s lab uses a comprehensive approach , combining electron microscopy-aided anatomical reconstructions of the circuit, physiological characterization by both imaging and whole cell patch recordings, genetic circuit manipulation in behaving flies, computational modeling and last but not least, engineering of fly-inspired robots that implement the theoretical principles and test their functionality.
Borst’s outstanding research has yielded a very precise and detailed description of the circuit at the single cell resolution as well as a thorough understanding of the computations it performs.
Several of his major scientific contributions include the discovery that the direction of visually perceived motion is calculated following the Reichardt Model (Single & Borst, Science 1998), the separation of visual information in the fly brain into ON- and OFF-channels, similar to bipolar cells in the retina of vertebrate eyes (Jösch, Schnell, Raghu, Reiff & Borst, Nature 2010) and the existence of four types of neurons in each channel, tuned to one of the four cardinal directions (right, left, up, down) that project into four separate neuronal layers based on their preferred direction (Maisak et al, Nature 2013).
https://www.neuro.mpg.de/borst
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Date:02שניפברואר 2015הרצאה
HIF-1a regulation by septin 9
More information שעה 14:00 - 14:00מיקום בניין ע"ש מקס ולילאן קנדיוטימרצה Prof. Nicola Mabjeesh
Dept. of Urology, Sourasky Medical Center, Tel Avivמארגן המחלקה לאימונולוגיה ורגנרציה ביולוגיתצרו קשר -
Date:02שניפברואר 2015הרצאה
Chiroptical Detection of Nonchromophoric and Achiral Guests by Enantiopure Alleno-Acetylenic Helicages
More information שעה 14:00 - 15:00מיקום בניין הלן ומילטון קימלמןמרצה Dr. Ori Gidron
Laboratory of Organic Chemistry, ETH Zurich, CH-8093 Zurich, Switzerlandמארגן המחלקה לכימיה מולקולרית ולמדע חומריםצרו קשר -
Date:02שניפברואר 2015הרצאה
Quasicrystals: Basic notions through simple models
More information שעה 14:15 - 14:15מיקום בניין הפיזיקה ע"ש עדנה וק.ב. וייסמןמרצה Ron Lifshitz Tel-Aviv University מארגן המחלקה לפיזיקה של מערכות מורכבותצרו קשר -
Date:02שניפברואר 2015הרצאה
Molecular Neuroscience Forum Seminar -Matthew Rasband
More information שעה 15:00 - 16:00כותרת Ankyrin and spectrin-dependent assembly of axon membrane domainsמיקום בניין ארתור ורושל בלפר למחקר ביורפואימרצה Matthew Rasband
Molecular and Cellular Biology Department of Neuroscience Baylor College of Medicineמארגן המחלקה למדעים ביומולקולרייםדף בית צרו קשר -
Date:02שניפברואר 2015אירועי תרבות
קונצרט סרגיי זכרוב
More information שעה 19:30 - 22:30מיקום אודיטוריום מיכאל סלעצרו קשר -
Date:04רביעיפברואר 2015כנסים
Engineering the Brain
More information שעה 09:00 - 14:00מיקום מרכז כנסים על-שם דויד לופאטיצרו קשר -
Date:04רביעיפברואר 2015כנסים
Engineering the Brain
More information שעה 09:00 - 14:00מיקום מרכז כנסים על-שם דויד לופאטיצרו קשר -
Date:04רביעיפברואר 2015הרצאה
Forum on Mathematical Principles in Biology
More information שעה 10:00 - 11:00מיקום בניין ארתור ורושל בלפר למחקר ביורפואימארגן המחלקה לביולוגיה מולקולרית של התאצרו קשר -
Date:04רביעיפברואר 2015הרצאה
Deaminases, self-inflicted mutagenesis and cancer
More information שעה 10:00 - 11:00מיקום בניין אולמן למדעי החייםמרצה Dr. Silvo Conticello, ITT Core Research Laboratory (CRL) Firenze, Italy מארגן המחלקה למדעים ביומולקולרייםצרו קשר -
Date:05חמישיפברואר 2015סימפוזיונים
The quantum way of sensing
More information שעה 11:15 - 12:30מיקום בניין הפיזיקה ע"ש עדנה וק.ב. וייסמןמרצה Joerg Wrachtrup
Stuttgartמארגן הפקולטה לפיזיקהצרו קשר תקציר Show full text abstract about The precision of measurements is ultimately limited by quant...» The precision of measurements is ultimately limited by quantum mechanics. However, achieving the quantum limit in practical measurement application like sensing proves to be a significant challenge. Traditional sensing techniques often become subject to increasing levels of environmental noise especially in integrated designs or when the sensor size approaches small length scales. However, recently developed quantum control techniques originally targeting quantum information processing and communications show strategies to control quantum states even in noisy environment. Furthermore, specifically designed quantum states can enhance sensing precision when control is obtained. The talk shall describe na-noscale sensing of electric, magnetic fields, temperature etc. utilizing spin quantum sensors. Applications in such diverse areas like solid-state physics or cellular biology shall be discussed. -
Date:05חמישיפברואר 2015אירועי תרבות
הקאמרטה הישראלית ירושלים
More information שעה 20:00 - 22:30כותרת פלאי הטבעמיקום אודיטוריום מיכאל סלעצרו קשר -
Date:06שישיפברואר 2015אירועי תרבות
פילוסופיה קצת אחרת
More information שעה 11:00 - 13:00כותרת ד"ר חיים שפיראמיקום אולם ע"ש דולפי ולולה אבנרצרו קשר -
Date:08ראשוןפברואר 2015הרצאה
Machine learning: an essential tool for bioimage analysis
More information שעה 10:00 - 10:00מיקום בניין ארתור ורושל בלפר למחקר ביורפואימרצה Prof. Fred Hamprecht
Math and Computer Science department at Heidelberg Universityצרו קשר תקציר Show full text abstract about Machine learning: an essential tool for bioimage analysis ...» Machine learning: an essential tool for bioimage analysis
Fred Hamprecht
The enormous throughput of modern imaging systems calls for automated quantitative analysis. Machine learning allows the user to provide a training set of examples of desired input-output pairs, rather than tweak multiple obscure parameters. As such, machine learning can be a powerful user-friendly paradigm for the analysis of massive biological imagery.
In this talk, I will show how machine learning has been packaged in the open source “ilastik” program. It is used for automated analysis, or as building block of more specialized pipelines, in fields ranging from cell and systems biology to developmental biology and the neurosciences. In particular, I will show how interactive machine learning can be used to conveniently train pixel or object level classifiers. I will also demonstrate a workflow for the tracking of multiple divisible objects, and indicate how we are about to make it “trainable”. ilastik works on monochrome or multichannel images with two or three spatial dimensions plus time.
The foregoing is a teaser for a hands-on ilastik workshop in the morning of Thursday, February 19th, when users are invited to bring and experiment with their own data.
Finally, I will give some intuition for the underlying machinery, and talk about ongoing work in structured learning for tracking and segmentation. The talk is guaranteed to be free of maths and code samples.
ilastik is open source and can be downloaded from http://ilastik.org. It is joint work with Stuart Berg, Kemal Eren, Burcin Erocal, Luca Fiaschi, Carsten Haubold, Bernhard Kausler, Ullrich Koethe, Anna Kreshuk, Thorben Kroeger, Martin Schiegg, Christoph Sommer, Christoph Straehle, Buote Xu.