| Friday 19 April 2024 | |
| Events for day: Wednesday 01 March 2023 |
| 09:00 - 16:00 Principles of working with laboratory animals School Deputy of Tech The workshop will aim to improve the ethical aspects of using animals for scientific purposes and improve the research integrity of preclinical studies. The series of workshops are being started from 28/2/2023 and Access: Free Content type: Theoretical and practical For more information, call the number below 26113274 ... 11:00 - 12:00 Wednesday Weekly Seminar - meeting Generalized parton distributions at zero skewness School PARTICLES AND ACCELERATORS Abstract: In this study, we present a new determination of the generalized parton distributions (GPDs) with their uncertainties at zero skewness, $xi=0$, through a simultaneous analysis of all available experimental data of the nucleon electromagnetic form factors (FFs), nucleon charge and magnetic radii, proton axial FF (AFF), and wide-angle Compton scattering (WACS) cross section for the first time. This can be considered as the most comprehensive analysis of GPDs at $xi=0$ performed so far. We show that such an analysis provides the simultaneous determination of three kinds of GPDs, namely $H^q$, $tilde{H}^q$ and $E^q$, cons ... 13:30 - 15:00 Weekly Seminar New insights into the puzzle of strong CO absorption features on the spectrum of massive galaxies from the study of a prototype relic galaxy School ASTRONOMY While at optical wavelengths, galaxy spectra match well with state-of-the-art synthetic stellar population models, the near-infrared (NIR) spectral range poses a challenge: massive early-type galaxies (ETGs) show CO absorption features in their H- and K-band spectra, which are systematically stronger than all current model predictions. Early studies of ETGs in the NIR attributed the strong CO absorptions to intermediate-mass AGB stars in these galaxies. This led astronomers to conclude that massive ETGs had long time-scale star formations, in contrast to the constraints from the optical spectral range, where star formation is fo ... 14:00 - 15:00 Combinatorics and Computing Weekly Seminar The Analytic Representation of Quantum Mechanics School MATHEMATICS I will talk about the analytic representation of quantum mechanics, known as the stellar representation, which captures the quantum states of Bosonic systems and their role in quantum computations. Using this representation, I will explain a quantum-inspired proof of the MacMahon Master theorem in enumerative combinatorics. This week's talk will be on our Gharar room: https://room.gharar.ir/ba05e1ad-99f6-4911-b60e-dbf02616a692 15:30 - 17:00 Geometry and Topology Seminar Knots in 3-manifolds, Knotted Surfaces in 4-manifolds and Heegaard-Floer Theory School MATHEMATICS The study of knots in the 3-space (and more generally, in arbitrary 3-manifolds) has been the source of interesting challenges for mathematicians for the past two centuries. We review some of the results, problems and open conjectures which have amazingly simple statements. We also discuss how some advanced tools from gauge theory and Heegaard-Floer theory may be used to (fully or partially) answer some of the questions which are otherwise difficult to handle. We also address the case of knotted surfaces in 4-manifolds and report some progress in using Heegaard-Floer invariants to distinguish them from one-another and extract some of their to ... 17:30 - 19:00 Algebraic Geometry Biweekly Webinar On the Computation of Staggered Linear Bases School MATHEMATICS Grobner bases are a powerful tool in polynomial ideal theory with many applications in various areas of science and engineering. A Grobner basis is a particular generating set for a given ideal which represents many useful properties of the ideal. The general theory of Grobner bases along with the first algorithm for constructing them were introduced by Buchberger in 1965 in his Ph.D. thesis. An staggered linear basis is indeed a linear basis containing a Grobner basis for a given ideal. This notion was first introduced by Gebauer and Moller in 1988, however the algorithm that they described for computing these bases was not complete. In thi ... |