Upcoming Postdoc Seminars

All seminars will be held in the MBI Lecture Hall - Jennings Hall, Room 355 - unless otherwise noted.

October 30, 2014 10:20 - 11:15AM

In this two-part talk, I will present a model for the regulation of precipitation of calcium phosphate species in biological tissues.  Calcium is an important ion for both structural support and biochemical signaling in vertebrates. As a result, it is necessarily maintained at high concentrations in fluids - at levels whereprecipitation is favored. Yet, such precipitation, when it occurs in an uncontrolled manner, is harmful. Using concepts from classical nucleation theory, I will discuss how biological organisms can regulate this high calcium concentration.

Nucleation and crystallization problems such as this one are often studied through the use of atomic force microscopy (AFM). AFM and related techniques are associated with inverse problems of Brownian motion. In the second part of my talk, I will discuss the inverse problem of potential energy reconstruction for random walkers under non-constant diffusivity. I will present a self-contained, nonparametric, regularized method based on Bayesian inference under which a path integral is used for uncertainty quantification. Under this method, regularization parameters are determined through optimization of an eigenvalue problem for a trace-class operator.

TBD
November 13, 2014 3:00 - 3:50PM

Abstract not submitted.

TBD
December 04, 2014 10:20 - 11:15AM

Abstract Not Submitted

TBD
December 11, 2014 10:20 - 11:15AM

Abstract Not Submitted

TBD
January 15, 2015 10:20 - 11:15AM

Abstract Not Submitted

TBD
January 22, 2015 10:20 - 11:15AM

Abstract Not Submitted

TBD
January 29, 2015 10:20 - 11:15AM

Abstract Not Submitted

TBD
February 12, 2015 10:20 - 11:15AM

Abstract Not Submitted

TBD
February 26, 2015 10:20 - 11:15AM

Abstract Not Submitted

TBD
March 05, 2015 10:20 - 11:15AM

Abstract Not Submitted

TBD
March 12, 2015 10:20 - 11:15AM

Abstract Not Submitted

TBD
March 19, 2015 10:20 - 11:15AM

Abstract Not Submitted

TBD
April 02, 2015 10:20 - 11:15AM

Abstract Not Submitted

TBD
April 09, 2015 10:20 - 11:15AM

Abstract Not Submitted

TBD
April 23, 2015 10:20 - 11:15AM

Abstract Not Submitted

TBD
May 07, 2015 10:20 - 11:15AM

Abstract Not Submitted

TBD
May 14, 2015 10:20 - 11:15AM

Abstract Not Submitted

Upcoming Visitor Seminars

October 28, 2014 10:20 - 11:15AM

Microscopic rules for pedestrian traffic in a narrow street are discussed and the corresponding stochastic lattice system modeling the pedestrian bi-directional flow is introduced. Then the mesoscopic and macroscopic PDE models for the pedestrian density are derived. The macroscopic PDE model is a system of conservation laws which can change type depending on the strength of interaction between the pedestrian flows and initial conditions. Behavior of the stochastic and coarse-grained models is compared numerically for several different regimes and initial conditions. Finally, nonlinear diffusive corrections to the PDE model are derived systematically. Numerical simulations show that the diffusive terms can play a crucial role when the conservative coarse-grain PDE model becomes non-hyperbolic.

TBD
November 12, 2014 10:20 - 11:20AM
Host: TBD

Abstract not submitted.

TBD
December 02, 2014 10:20 - 11:15AM
Host: TBD

Abstract not submitted.

upcoming special seminars