IPM Calendar 
Thursday 24 January 2019   Today  
Events for day: Wednesday 09 January 2019    
           11:00 - 13:00     Theoretical Neuroscience Journal Club
Distinct timescales of population coding across cortex

School
COGNITIVE SCIENCES

Venue:
School of Cognitive Sciences, Institute for Research in Fundamental Sciences (IPM),
Opposite the ARAJ, Artesh Highway, Tehran, Iran ...

           11:00 - 12:00     Computational Nanoscience journal club
The GW approximation: content, successes and limitations

School
NANO SCIENCES

The GW approximation: content, successes and limitations

Abstract:

Many observables such as the density, total energy, or electric current, can be expressed explicitly in terms of the one-body Green's function, which describes electron addition or removal to or from a system. An efficient way to determine such a Greens function is to introduce a self?energy, which is a nonlocal and dynamic effective potential that influences the propagation of particles in an interacting system. The state-of-the art approximation for the self?energy is the GW approximation, where the system to (or from) which the electron i ...

           13:30 - 15:00     Weekly Seminar
The interstellar medium through Diffuse Interstellar Bands

School
ASTRONOMY

The interstellar medium (ISM) is referred to the ''gasses between stars'' within a galaxy. The ISM has a quite various physics and chemistry, where include the environments with a temperature of a few million Kelvin to pretty cool areas. Because of the young star activities in addition to the mass ejection of old stars, and of course, supernova explosions, several atoms, molecules, and compounds are found in the ISM. Neutral gases can be observed in this environment as well as very hot and highly ionized clouds. The ISM is the birthplace of all-stars of the space and therefore its study tells us stories about a wide range of mysteries from th ...

           14:00 - 16:00     Seminar
confidence representation of perceptual decisions in behavioral and neural responses

School
COGNITIVE SCIENCES

Abstract:


Venue:
School of Cognitive Sciences, Institute for Research in Fundamental Sciences (IPM),
Opposite the ARAJ, Artesh Highway, Tehran, Iran on map




* To join the mailing list:
Send an empty email to: scs at ipm dot ir on the subject of: #join
...

           14:00 - 15:00     Weekly Seminar
Shape of Living Escherichia coli: A Physical Approach

School
NANO SCIENCES

Shape of Living Escherichia coli: A Physical Approach

Abstract:

The behavior and survival of bacteria as the oldest and smallest living organism in our planet have been interesting subjects for researchers. In view of the fact that the shape of bacteria can be assumed to play an important role in their behavior and survival, scientists have been fascinated by the large variety of cell shapes between different species. Cell shape is the result of a complicated process, and interest in understanding this process has increased by both biological and biophysical approaches. We used a combination of optical

           15:00 - 16:00     Weekly Seminar
Evidence for the Associated Production of a Single Top Quark and a Photon in Proton-Proton Collisions at sqrt s=13 TeV

School
PARTICLES AND ACCELERATORS

Abstract: The first evidence of events consistent with the production of a single top quark in association with a photon is reported. The analysis is based on proton-proton collisions at ?s=13 TeV and recorded by the CMS experiment in 2016, corresponding to an integrated luminosity of 35.9 fb?1. Events are selected by requiring the presence of a muon (?), a photon (?), an imbalance in transverse momentum from an undetected neutrino (?), and at least two jets (j) of which exactly one is identified as associated with the hadronization of a b quark. A multivariate discriminant based on topological and kinematic event properties is employed to se ...

           15:30 - 17:00     Geometry and Topology Weekly Seminar
Faber Polynomials, Grunsky Matrix and Period Matrices

School
MATHEMATICS

We extend the idea of Grunsky operator and Faber operator to higher genus compact Riemann surfaces with one boundary curve. In this talk, I will first review the classical concept of Faber Polynomials corresponding to the map $f$, a conformal map on a simply connected domain $ extbf{D}$ of the Riemann sphere with $Gamma=partial f ( extbf{D})$. We define the Grunsky coefficients associated to $f$, and review the necessary and sufficient conditions for $f$ to be univalent on $ extbf{D}$. We will define Grunsky and Faber operators and show that the Faber operator is an isomorphism for quasi-circles. I will present some recent work of m ...