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January 01, 2013
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Date:18WednesdayMarch 2015Lecture
Testing the MOND modified gravity in shell galaxies
More information Time 11:15 - 12:15Location Nella and Leon Benoziyo Physics BuildingLecturer Michal Bilek Organizer Nella and Leon Benoziyo Center for AstrophysicsContact Abstract Show full text abstract about Shells observed in many elliptical galaxies are mostly remna...» Shells observed in many elliptical galaxies are mostly remnants of nearly radial minor mergers. They consist of the accreted stars reaching the apocenters of their orbits. Shells can be used to constrain the gravitational potential of their host galaxy up to the radius of around 100 kpc.
We developed the shell identification method for testing the compatibility of the observed shell radii in a galaxy with the given potential. While the method is also applicable for investigating dark matter halos, we have used it only to test the MOND modified gravity so far. We verified that MOND can explain the observed shell radii in a well studied shell galaxy NGC 3923 with the precision better than 5% (Bílek et al., 2013). Furthermore, MOND predicts the existence of a new shell at 1950" southwest from the galaxy's center (Bílek et al., 2014).
Shell spectral line profiles encode the information about the circular velocity at the position of the shell and the phase velocity of the shell itself (Ebrová et al., 2012). In Bílek et al. (2015), we found that these velocities are both expected to reach constant values at large radii in MOND, which is given by the baryonic mass of the galaxy. Their ratio can have only discrete values.
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Date:18WednesdayMarch 2015Lecture
Keeping the CNS clear: glial phagocytosis of apoptotic nuerons
More information Time 11:30 - 11:30Location Arthur and Rochelle Belfer Building for Biomedical ResearchLecturer Dr. Estee Kurant
Dept. of Genetics & Developmental Biology, Rappaport Faculty of Medicine, Technion, HaifaContact -
Date:18WednesdayMarch 2015Lecture
POPULAR LECTURES - IN HEBREW
More information Time 12:00 - 12:00Title עיר קטנה וחלבונים בה מעט?Location Dolfi and Lola Ebner AuditoriumLecturer Prof. Maya Schuldiner Contact -
Date:18WednesdayMarch 2015Lecture
Learning the 'metadata' of a cell, statistical methods for single cell genomics
More information Time 12:00 - 13:00Title Guest SeminarLocation Gerhard M.J. Schmidt Lecture HallLecturer Rahul Satija
Core Member, New York Genome Center Assistant Professor, NYU Center for Genomics and Systems BiologyOrganizer Department of Systems ImmunologyContact -
Date:18WednesdayMarch 2015Lecture
The ERK signaling landscape and EMT
More information Time 14:00 - 14:00Location Max and Lillian Candiotty BuildingLecturer Prof.John Blenis
USAOrganizer Department of Immunology and Regenerative BiologyContact -
Date:18WednesdayMarch 2015Lecture
Braginsky Center for the Interface between the Sciences and the Humanities
More information Time 16:00 - 16:00Title The Science and Art of the Ancient Colors of Kings and PriestsLocation Gerhard M.J. Schmidt Lecture HallLecturer Zvi Koren
Shenkar College of Engineering and DesignOrganizer Department of Condensed Matter PhysicsContact -
Date:19ThursdayMarch 2015Lecture
Women's day - Lecture in Hebrew
More information Time 11:00 - 11:00Location Dolfi and Lola Ebner AuditoriumLecturer Ms. Maxine Fassberg, Intel CEO Contact -
Date:19ThursdayMarch 2015Colloquia
A microscopic view of electronic nematicity in the pnictide superconductors
More information Time 11:15 - 12:30Location Edna and K.B. Weissman Building of Physical SciencesLecturer Abhay Pasupathy
Columbia UniversityOrganizer Faculty of PhysicsContact Abstract Show full text abstract about Iron-based pnictide superconductors display the phenomenon o...» Iron-based pnictide superconductors display the phenomenon of electronic nematicity - the electronic transport displays an anisotropic behavior that breaks the rotational symmetry of the lattice. This nematic behavior is observed across many compounds and over a large part of the phase diagram of the material. What is this nematicity? Does it have any relationship to superconductivity in the material? In this talk I will attempt to answer these questions by providing a microscopic view of one of the pnictide compounds NaFeAs obtained using atomic-resolution scanning tunneling microscopy and spectroscopy. -
Date:19ThursdayMarch 2015Colloquia
A microscopic view of electronic nematicity in the pnictide superconductors
More information Time 11:15 - 12:30Location Edna and K.B. Weissman Building of Physical SciencesLecturer Abhay Pasupathy
Columbia UniversityOrganizer Faculty of PhysicsContact Abstract Show full text abstract about Iron-based pnictide superconductors display the phenomenon o...» Iron-based pnictide superconductors display the phenomenon of electronic nematicity - the electronic transport displays an anisotropic behavior that breaks the rotational symmetry of the lattice. This nematic behavior is observed across many compounds and over a large part of the phase diagram of the material. What is this nematicity? Does it have any relationship to superconductivity in the material? In this talk I will attempt to answer these questions by providing a microscopic view of one of the pnictide compounds NaFeAs obtained using atomic-resolution scanning tunneling microscopy and spectroscopy. -
Date:19ThursdayMarch 2015Lecture
TWISTOR ORIGIN OF THE SUPERSTRING
More information Time 13:30 - 13:30Location Edna and K.B. Weissman Building of Physical SciencesLecturer NATHAN BERKOVITS
ICTP SAIFR, SAO PAULO, BRAZILOrganizer Department of Particle Physics and AstrophysicsContact -
Date:19ThursdayMarch 2015Lecture
"News from the protein fold space”
More information Time 14:00 - 14:00Location Helen and Milton A. Kimmelman BuildingLecturer Prof. Dmitrij Frishman
Technische Universität MünchenOrganizer Department of Chemical and Structural BiologyContact -
Date:19ThursdayMarch 2015Lecture
Converging circuits mediate olfactory learning in flies
More information Time 14:00 - 14:00Location Gerhard M.J. Schmidt Lecture HallLecturer Dr. Dana Galili
Max Planck Institute for Neurobiology, MunichOrganizer Department of Brain SciencesContact Abstract Show full text abstract about Drosophila melanogaster flies show complex behaviors like as...» Drosophila melanogaster flies show complex behaviors like associative learning. Combining the available genetic tools with behavioral measures allows us to study the specific neuronal circuits of learning and memory.
Using olfactory conditioning, I directly compared the neuronal circuit of memories with different punishment paradigms: the widely used electric-shock and the newly established elevated temperature. I identified the neural pathway selectively required for olfactory-temperature conditioning, from the sensory input to the central neurons signaling reinforcement. I found that temperature and electric-shock punishments—despite being perceived by distinct sensors—eventually converge to the same neuronal network: the dopamine pathway. Thus the role of dopamine is general—attaching a motivational value to an environmental stimulus. This finding is especially significant in context of recent findings in mammalian systems, namely that in addition to their well-established role in signaling positive reinforcement, dopaminergic populations in the mammalian brain were also shown to represent aversive reinforcement.
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Date:19ThursdayMarch 2015Lecture
"Generating Glioma Stem Cells through Dedifferentiation and Pro-inflammatory signaling"
More information Time 14:00 - 15:00Location Arthur and Rochelle Belfer Building for Biomedical ResearchLecturer Dr. Dinorah Friedmann-Morvinski
The Salk Institute/Tel Aviv UniversityOrganizer Department of Systems ImmunologyContact -
Date:19ThursdayMarch 2015Lecture
Structure-Kinematic Relationships in Dynamic Molecular Single Crystals
More information Time 14:00 - 14:00Location Perlman Chemical Sciences BuildingLecturer Prof. Pance Naumov
New York University Abu Dhabi, Abu Dhabi, United Arab EmiratesOrganizer Department of Molecular Chemistry and Materials ScienceContact -
Date:19ThursdayMarch 2015Lecture
Interdisciplinary discussion club- Peletron
More information Time 16:30 - 18:00Contact -
Date:19ThursdayMarch 2015Cultural Events
"Aladin" - Children's Theatre
More information Time 17:30 - 19:00Location Michael Sela AuditoriumContact -
Date:22SundayMarch 2015Lecture
Viral ‘Photosynthesis’
More information Time 11:00 - 11:00Location Sussman Family Building for Environmental SciencesLecturer Oded Beja
Faculty of Biology Technion-Israel Institute of TechnologyOrganizer Department of Earth and Planetary SciencesContact Abstract Show full text abstract about Cyanobacteria play a key role in marine photosynthesis, whic...» Cyanobacteria play a key role in marine photosynthesis, which contributes to the global carbon cycle and to the world oxygen supply. Genes encoding the photosystem-II reaction centre are found in many cyanophage (viruses that infect cyanobacteria) genomes, and it was suggested that the horizontal transfer of these genes might be involved in increasing phage fitness. Recently, evidence for the existence of phages carrying photosystem-I genes was also reported. Even more, phages carrying both photosystem-II and photosystem-I gene suites are also found.
In this lecture I will discuss viral ‘photosynthesis’, that is the possible contribution of viral proteins to cyanobacterial photosynthesis. The implications to oceanic photosynthesis and to the carbon cycle will be discussed.
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Date:23MondayMarch 201524TuesdayMarch 2015Conference
Justen Passwell Memorial Symposium: New Frontiers in Cancer Metabolism
More information Time All dayLocation The David Lopatie Conference CentreChairperson Benjamin GeigerHomepage Contact -
Date:23MondayMarch 2015Lecture
"Estrogen Modulation Enhances Browning of the Adipose Tissue;Implications for Post-Menopause Obesity and Diabetes"
More information Time 11:00 - 12:00Location Wolfson Building for Biological ResearchLecturer Kfir Lapid, Ph.D.
Laboratory of Prof. Jonathan Graff Department of Developmental Biology UT Southwestern Medical Center Dallas, TexasOrganizer Department of Systems ImmunologyContact -
Date:23MondayMarch 2015Colloquia
"Chirality and Chiroptical Effects in Nanostructures"
More information Time 11:00 - 12:30Location Gerhard M.J. Schmidt Lecture HallLecturer Prof. Gil Markovich
School of Chemistry, University Tel-AvivOrganizer Faculty of ChemistryContact