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February 18, 2016
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Date:02MondayMay 2016Lecture
Applying carbonate clumped-isotope thermometry to study basin geodynamics
More information Time 11:00 - 11:00Location Sussman Family Building for Environmental SciencesLecturer Uri Ryb
Division of Geological and Planetary Sciences Caltech UniversityOrganizer Department of Earth and Planetary SciencesContact Abstract Show full text abstract about The reconstruction of thermal history is key to study the ge...» The reconstruction of thermal history is key to study the geodynamic evolution of sedimentary basins through burial, metamorphism, magmatism, deformation and exhumation. Carbonate clumped isotope thermometry enables such reconstructions in carbonate minerals, and complements ‘conventional’ low-temperature thermochronometers (e.g. apatite and zircon fission-tracks or U-Th/He systems) by constraining the peak burial temperature and the cooling rate.
Most published uses of carbonate clumped isotope thermometry aim to measure depositional temperatures of Earth-surface sedimentary carbonates. However, it has also been shown that carbonate clumped-isotope measurements of minerals formed or re-equilibrated at elevated temperatures can constrain thermal histories of sub-surface rocks. Only very recently have we had the experimental constraints on solid-state isotopic reordering to translate clumped-isotope measurements of such materials into quantitative statements about burial and exhumation. These data have led to a new generation of conceptual models describing changes in clumped-isotope composition during heating and cooling; taken together, these experiments and models enable a new approach to the study of burial, metamorphism and exhumation over long timescales and large areas. This presentation will discuss applications of this approach to constrain the thermal history of carbonate rocks exhumed in back-arc (Naxos, Greece) and mid-continental (Colorado Plateau) basins.
The exhumation of Naxos metamorphic core-complex entailed a complex thermal history, mineral-mineral and water-rock reactions, and deformation. These processes were registered in the bulk and clumped isotope composition of marbles. Calcite and dolomite marbles from Naxos show large variation of carbonate clumped-isotope values, in association with deformation and secondary mineralization fabrics. Results suggest that dynamic recrystallization of calcite can reset the carbonate clumped-isotope signal, which consequentially records the minimum temperature of dynamic recrystallization in natural samples. Carbonate clumped isotope data from the center of Naxos core-complex are consistent with the thermal history as recorded by multiple ‘conventional’ thermochronometers, but require a faster cooling rate than previously suggested, consistent with a heat shock driven by magmatic and hydrothermal activities.
Carbonate clumped isotope thermometry is used to study the burial, uplift and exhumation histories of the Colorado Plateau (USA). There, carbonate rocks were not recrystallized to marbles, and therefore their clumped isotope signals are expected to be sensitive to the peak-burial temperature. Given such constrains on the thermal history, it is straightforward to infer the thermal gradients during peak burial, and calculate total-exhumation (i.e. the volume of rock removed) in-situ. Preliminary results from the southwestern rim and the interior of the Plateau are so far consistent with published constrains on peak burial temperatures.
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Date:02MondayMay 2016Lecture
When enhancers drive the wrong genes - mechanisms and role in tumorigenesis
More information Time 14:00 - 15:00Location Raoul and Graziella de Picciotto Building for Scientific and Technical SupportLecturer Dr. Yotam Drier Organizer Department of Immunology and Regenerative BiologyContact -
Date:03TuesdayMay 2016Lecture
TOOKAD®-soluble VTP: milestones on the road from local tumor ablation to systemic cancer control.
More information Time 10:00 - 11:00Location Wolfson Building for Biological ResearchLecturer Prof. Avigdor Scherz
Dept. of Plant and Environmental Sciences - WISOrganizer Department of Biomolecular SciencesContact -
Date:03TuesdayMay 2016Lecture
E FISH, TWO FISH, RED FISH, BLUE FISH
More information Time 10:30 - 10:30Location Neve ShalomLecturer Amos Yarom
TECHNIONOrganizer Department of Particle Physics and AstrophysicsContact Abstract Show full text abstract about I will consider properties of a non equilibrium steady state...» I will consider properties of a non equilibrium steady state generated by placing two initial heat baths in contact with each other. The dynamics of the system under consideration are governed by a conformal field theory. When the number of spacetime dimensions is very large the equations of motion for the system simplify. The ``phase diagram'' associated with the steady state, the dual, dynamical, black hole description of this problem, and its relation to the fluid/gravity correspondence will be discussed. -
Date:03TuesdayMay 2016Lecture
Investigating plant immune responses to bacterial pathogens
More information Time 11:15 - 11:15Location Ullmann Building of Life SciencesLecturer Prof. Gitta Coaker
Department of Plant Pathology, University of California, Davis, USAOrganizer Department of Plant and Environmental SciencesContact -
Date:03TuesdayMay 2016Lecture
“LAGRANGIANS'' FOR NON-LAGRANGIAN THEORIES”
More information Time 12:00 - 12:00Location Neve ShalomLecturer Shlomo Razamat
TECHNIONOrganizer Department of Particle Physics and AstrophysicsContact Abstract Show full text abstract about We will discuss a procedure to construct N=1 (singular) Lagr...» We will discuss a procedure to construct N=1 (singular) Lagrangians describing some of the N=2 strongly coupled SCFTs believed to be non-Lagrangian. we will apply the same procedure to study some of the properties of a putatively new N=1 SCFT which otherwise does not have, at the moment, a description in terms of a Lagrangian. -
Date:03TuesdayMay 2016Lecture
The origin of synchronized synaptic activities in the barrel cortex
More information Time 12:30 - 12:30Location Gerhard M.J. Schmidt Lecture HallLecturer Prof. Ilan Lampl
Department of Neurobiology, WISOrganizer Department of Brain SciencesContact Abstract Show full text abstract about In all sensory modalities the response of cortical cells to ...» In all sensory modalities the response of cortical cells to repeated stimulus is highly variable from trial to trial and it is often correlated in nearby cells. Spiking mechanisms are highly reliable, suggesting that correlated variability of cortical response results from fluctuations in shared synaptic inputs, as we showed in our previous studies. However, the origin of correlated synaptic activities in the cortex is under dispute. Whereas some studies suggest that correlated variability originates from thalamic inputs, others claim that it emerges in the cortex due to recurrent local activity. By combining optogenetic silencing and paired intracellular recordings in the barrel cortex of anesthetized mice as well as using paired LFP-intracellular recordings in awake mice, we revealed the origin of synchronized ongoing and sensory evoked cortical activities. -
Date:03TuesdayMay 2016Lecture
MCB Student Seminar
More information Time 12:30 - 12:30Title A regulatory module involving FGF13, miR-504 and p53 regulates ribosomal biogenesis and supports cancer cell survival. Neuron-neuron interactions during neuronal remodelling in the DrosophilaLocation Wolfson Building for Biological ResearchLecturer Debora Bublik; Oded Mayseless Organizer Department of Molecular Cell BiologyContact -
Date:04WednesdayMay 2016Lecture
Recent Progress in (the Standard Model) Effective Field Theory
More information Time 11:00 - 12:30Location Technion, Lidow 502Lecturer Rodrigo Alonso
UC San DiegoOrganizer Department of Particle Physics and AstrophysicsContact -
Date:05ThursdayMay 2016Colloquia
The Quantum Way of Doing Computations
More information Time 11:15 - 12:30Location Edna and K.B. Weissman Building of Physical SciencesLecturer Rainer Blatt
InnsbruckOrganizer Faculty of PhysicsContact Abstract Show full text abstract about Since the mid-nineties of the 20th century it became apparen...» Since the mid-nineties of the 20th century it became apparent that one of the centuries’ most important technological inventions, computers in general and many of their applications could possibly be further enormously enhanced by using operations based on quantum physics. This is timely since the classical roadmaps for the development of computational devices, commonly known as Moore’s law, will cease to be applicable within the next decade due to the ever smaller sizes of the electronic components that soon will enter the quantum physics realm. Computations, whether they happen in our heads or with any computational device, always rely on real physical processes, which are data input, data representation in a memory, data manipulation using algorithms and finally, the data output. Building a quantum computer then requires the implementation of quantum bits (qubits) as storage sites for quantum information, quantum registers and quantum gates for data handling and processing and the development of quantum algorithms.
In this talk, the basic functional principle of a quantum computer will be reviewed. It will be shown how strings of trapped ions can be used to build a quantum information processor and how basic computations can be performed using quantum techniques. In particular, the quan-tum way of doing computations will be illustrated by analog and digital quantum simulations, which reach from the simulation of quantum many-body spin systems over open quantum systems to the quantum simulation of a lattice gauge theory.
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Date:05ThursdayMay 2016Lecture
Changes to the peripheral nervous system during infections with alpha-herpesviruses
More information Time 12:15 - 13:00Title Virology club meetingLocation Arthur and Rochelle Belfer Building for Biomedical ResearchLecturer Dr. Rebekah Warwick Organizer Faculty of BiologyContact -
Date:05ThursdayMay 2016Lecture
Highlights in Immunology 2016
More information Time 13:30 - 13:30Title New physiological roles of ACKR1 (DARC)Location Wolfson Building for Biological ResearchLecturer Prof. Antal Rot
York UniversityOrganizer Department of Systems ImmunologyContact -
Date:08SundayMay 201609MondayMay 2016International Board
Executive Board and Committees Meeting - 2016
More information Time All dayContact -
Date:08SundayMay 2016Lecture
Scientific and Public Policy Challenges of Air pollution Research in China
More information Time 11:00 - 11:00Location Sussman Family Building for Environmental SciencesLecturer Prof. Tong Zhu
Dean of College of Environmental Sciences and Engineering Peking UniversityOrganizer Department of Earth and Planetary SciencesContact -
Date:08SundayMay 2016Cultural Events
The Israel Camerata Jarusalem - Summer Evening
More information Time 20:00 - 22:00Location Michael Sela AuditoriumContact -
Date:09MondayMay 2016Colloquia
"Health Effects of Air Pollution in China: Scientific Challenges and Policy Implication"
More information Time 11:00 - 12:00Location Gerhard M.J. Schmidt Lecture HallLecturer Prof. Tong Zhu
College of Environmental Sciences and Engineering, Peking UniversityOrganizer Faculty of ChemistryContact -
Date:09MondayMay 2016Lecture
Diverse high throughput technologies in cancer research and in synthetic biology
More information Time 14:00 - 15:00Location Raoul and Graziella de Picciotto Building for Scientific and Technical SupportLecturer Dr. Zohar Yakhini
Computer Science Department, TechnionOrganizer Department of Immunology and Regenerative BiologyContact Abstract Show full text abstract about The development of high throughput molecular measurement app...» The development of high throughput molecular measurement approaches enables much deeper understanding of cellular and disease related processes. The introduction of new measurement technology is always tied with computational design and optimization work as well as with the need to develop efficient data analysis and interpretation tools. I will describe data analysis and design methods and results with an emphasis on jointly analyzing data from several molecular measurement sources, such as serum glycomics and tumor transcriptomics. I will also describe the use of synthetic oligonucleotides to address new measurement and optimization questions. -
Date:10TuesdayMay 2016Lecture
Organometallic Fluorine Chemistry: New Reactions and Mechanisms
More information Time 11:00 - 12:00Location Helen and Milton A. Kimmelman BuildingLecturer Prof. Arkadi Vigalok
School of Chemistry Tel Aviv UniversityOrganizer Department of Molecular Chemistry and Materials ScienceContact -
Date:10TuesdayMay 2016Lecture
Glycosyltransferases; substrate- & site-specific players in the combinatorial modifications that lead to the vast diversity of flavonoids;
More information Time 11:15 - 11:15Title a study from their roles in citrus flavor, color and nutritive value to mechanisms of specificityLocation Ullmann Building of Life SciencesLecturer Dr. Yoram Eyal
Institute of Plant Sciences, Agricultural Research Organization ARO, The Volcani Center, Bet-DaganOrganizer Department of Plant and Environmental SciencesContact -
Date:10TuesdayMay 2016Lecture
HOW SLOW CORTICAL NEURONS MANAGE TO MAKE FAST DECISIONS
More information Time 12:30 - 12:30Location Gerhard M.J. Schmidt Lecture HallLecturer Prof. Michael Gutnick
Koret School of Veterinary Medicine Hebrew University of JerusalemOrganizer Department of Brain SciencesContact Abstract Show full text abstract about Most excitatory cells in layer 4 of the mouse somatosensory ...» Most excitatory cells in layer 4 of the mouse somatosensory cortex are spiny stellate (SpSt) neurons, which receive nearly all their excitatory input from the thalamus and from other SpSt neurons in the same barrel. Because layer 4 is the key entrance point into the cortical circuit, we assume that SpSt neurons respond rapidly to sensory input. However, these cells are very small, and there are strong theoretical reasons to suspect that their compact morphology could impair their capacity to encode high input frequencies and thus hamper the temporal fidelity of cortical processing. We use whole-cell patch clamp to measure the temporal properties of asynchronous noise in SpSt cells as compared with the much larger layer 5 pyramidal (Pyr) cells, and characterize the capabilities of both cell types to encode high frequencies in a synaptically active-like environment. We find that individual SpSt cells indeed have a much narrower dynamic range than Pyr cells when probed with inputs on a background of identical noise characteristics. However, the synaptic dynamics in SpSt cells, as evidenced by the correlation time of asynchronous noise, is slower than in Pyr neurons, and the slower correlation time of the SpSt cells is associated with significant broadening of their dynamic range. We further show that this compensatory improvement in encoding bandwidth of sensory input depends on activation of potassium conductances, as it decreases when potassium channels are pharmacologically blocked.