Friday 29 March 2024 |
Events for day: Wednesday 01 February 2017 |
11:00 - 12:00 Weekly Seminar Applied Physics Research Lab Plasmonic- inspired circuit elements School PHYSICS Seminar Room A ... 13:30 - 15:00 Weekly Seminar Gravity darkening in late-type stars School ASTRONOMY Gravity darkening is a phenomenon that can modify the surface brightness of a star and thus be important in the interpretation of stellar light curves. It is usually associated with fast rotating early-type stars endowed with a radiative envelope, for which von Zeipel (1924) analysis predicts the local surface flux to be weaker at the equator. However, a theory is still lacking to interpret the high resolution interferometric data coming from late-type stars. We thus need to rely on numerical simulations to model the latitude dependence of the heat flux in stellar convective envelopes. ... 15:00 - 16:00 Weekly Seminar On Infrared Modification of Gravity and Roads to its Ultraviolet Completion School PARTICLES AND ACCELERATORS In this talk, we look at modification of gravity at low energy or large distance, a change which is phenomenologically motivated by the accelerating cosmic expansion. It basically means devising a consistent field theory of interacting massive spin-2 particles. Such a refinement immediately seeks for a steady theory as its completion at higher energies which is not too far from its mass scale. We will finally discuss some possible approaches to its UV completion from gauge theory and string theory. ... 16:00 - 17:00 Colloquium Seminar Neuronal Activity of Visual Cortex in the Behaving Monkeys School NANO SCIENCES Neuronal Activity of Visual Cortex in the Behaving Monkeys Recording from local field potentials (LFPs) are becoming increasingly common in research and clinical applications. LFP is a measurement of the electrical activity from a local population of neurons recorded with an extracellular electrode in the brain. Understanding the functional properties of LFP is an important key for development of neural prosthesis and very useful to study in the field of brain machine interfaces. Importantly, understanding the functional properties of LFPs is critical to interpret the neuronal activity generated by non-invasive methods such ... |