A seminar with Patrick Regan, Professor of Political Science and Peace Studies.
Presented by the University of Notre Dame Office of Sustainability with cosponsorship by the Kellogg Institute for International Studies and Kroc Institute for International Peace Studies…
Patrick Regan is a Professor of Political Science and Peace Studies and the Associate Director of the University of Notre Dame Environmental Change Initiative for ND-GAIN…
This event is free and open to all students, faculty, and staff. Beverages and light desserts will be provided, and we encourage you to bring your lunch and a reusable beverage container.
Dissertation Defense
"Testing the Effects of Synonymous Codon Usage on Co-Translational Protein Folding using Novel Experimental and Computational Techniques"
Dr. Patricia Clark's graduate student.
The Health Professions Fair during the CAAHP regional meeting will bring over 85 representatives from a variety of health professions programs, organizations, and associations to the Chicago area.
The fair provides the opportunity for students to meet with these professionals and develop or deepen the understanding of requirements for admission into programs as well as gain knowledge into various professions.…
Biophysics Week is an annual event started in 2016 to celebrate and raise awareness of the field.
Biophysical Society
society@biophysics.org | www.biophysics…
Paul Bressloff, Department of Mathematics, University of Utah, will give a John A. Lynch Lecture titled, "Spontaneous brain dynamics: geometric visual hallucinations, ambiguous perception, and stochastic attractor networks"."
Advances in experimental techniques, including fMRI, optical imaging, multi-electrode recordings, and optogenetics, combined with sophisticated data analytic tools, are shedding light on the intricate functional architecture of specific brain regions. In this talk, Professor Bressloff will present a neural field theory of geometric visual hallucinations, and will describe a neural field theory of binocular rivalry waves. He will also discuss how stochastic neural fields can be used to investigate the stimulus-dependent suppression of neural variability in multiple-attractor networks.…
Biophysics Week is an annual event started in 2016 to celebrate and raise awareness of the field.
Biophysical Society
society@biophysics.org | www.biophysics…
Title: Entropy, Optimization and Coding Theory
Originally published at math.nd.edu.…
From observations to origins: Disentangling gas flows in the circumgalactic medium
Mr. Zach Hafen
Graduate Student
Department of Physics & Astronomy
Northwestern University
As much as half of the gas mass in our galaxy's dark matter halo may reside not in the galaxy itself, but in the surrounding area, the circumgalactic medium (CGM). The vast gas content of the CGM, loosely defined as the volume immediately outside the galaxy but inside the dark matter halo, can be broadly classified as originating either in accretion from the intergalactic medium (IGM) or winds from galaxies. Both of these are crucial to the process of galaxy formation: IGM accretion provides the material necessary for observed star formation rates, while galactic winds are linked closely to the regulation of star formation through feedback. Despite their individual importance, differentiating these gas flows in observations is an outstanding problem in studies of the CGM. I will discuss our efforts to address this problem through the use of hydrodynamic galaxy formation simulations on two fronts: mock observations of CGM quasar absorption lines and "particle-tracking" analyses that reconstruct the full history of CGM gas.
Bayan Saparbayeva
University of Notre Dame
3:30 PM
154 Hurley Hall
Catalyst Acceleration for Non-convex Optimization on Manifolds
In the following work, we propose an extension of a class of optimization algorithms to non-convex problems on manifold spaces. To accomplish this, we leverage ideas from recent work on the “Catalyst” algorithm for non-convex optimization on Euclidean spaces H. Lin et al. (2017). This method is initially designed to accelerate existing optimization algorithms for convex objective functions but is also amenable to non-convex functions. We apply the Catalyst acceleration scheme to many existing optimization routines, such as gradient descent, Newtonian methods and algorithms that are designed for distributed parallel inference on manifolds such as Sarpabayeva et al. (2018). One can show that the algorithm generally converges to the stationary point, and in the case of strongly convex functions, it converges to the local minimum. We will provide convergence analysis of the algorithms and present applications for a large class of objective functions in various manifold spaces.…
Cosmological probes of the invisible universe
Dr. Yuhsin Tsai
Postdoctoral Research Associate
Elementary Particle Theory Group
Maryland Center for Fundamental Physics
University of Maryland
In the next decade, precision cosmological data from Cosmic Microwave Background and Large Scale Structure observations will improve in sensitivity by more than an order of magnitude. In addition, gravitational wave signals may allow us to see through the plasma background to study the universe at the very earliest times, immediately after the Big Bang. I will discuss the prospects for using these cosmological signals to study the invisible universe, including the unknown properties of neutrinos and dark sector particles, and quantum fluctuations in the primordial dark age.
Biophysics Week is an annual event started in 2016 to celebrate and raise awareness of the field.
Biophysical Society
society@biophysics.org | www.biophysics…
Bring your lunch and join the Office of Sustainability for updates on food waste.
Embracing the dark side: Hidden naturalness in cosmology and colliders
Dr. Yuhsin Tsai
Postdoctoral Associate
Department of Physics
University of Maryland
Originally published at physics.nd.edu…
Title: Fourier analysis on hyperbolic spaces and sharp geometric and functional inequalities
Originally published at math.nd.edu.…
Biophysics Week is an annual event started in 2016 to celebrate and raise awareness of the field.
Biophysical Society
society@biophysics.org | www.biophysics…
Biophysics Week is an annual event started in 2016 to celebrate and raise awareness of the field.
Biophysical Society
society@biophysics.org | www.biophysics…
Join us for the 2019 Hesburgh Libraries Hackathon. This year's theme is Synergy: Holistic Solutions for the Whole Student.
