## Scientific Lectures

- 31-Aug-07

Structure Theorems in Graph Theory

Fix a graph H. What is the most general graph that does not contain H? In other words, how do we explicitly construct all the graphs that do not contain H? To begin to make this precise, we have to say what 'contain' means;; we have more››

Simon Fraser University

- 20-Aug-07

Which way to go? Modeling eukaryotic chemotaxis

Chemotaxis is characterized by directed movement of cells up a chemical gradient. It is a key component in a multitude of biological processes, including neuronal patterning, wound healing, embryogenesis, and cancer metastasis. Even though many of more››

University of British Columbia

- 20-Aug-07
- 23-Aug-07

Canadian Summer School on Communications and Information Theory, 2007

The summer school will consist of invited talks from leading experts in the areas of Communications and Information theory. The talks will be self-contained and aimed at introducing graduate students and researchers to new areas in Communications and more››

University of Alberta

- 8-Aug-07

A fundamental problem of cell biology is to understand how cells make measurements and then make behavioral decisions in response to these measurements. The full answer to this question is not known but there are some underlying principles that ar more››

University of British Columbia

- 7-Aug-07

- 7-Aug-07

Morphogen Gradients Stable During Growth? an example in plant development

In plant development, the phytohormone auxin plays a key-role, controlling cell identity, cell division and cell expansion. Interestingly, in both distal regions of plant roots and shoots, characteristic auxin maxima have been found which correlat more››

University of British Columbia

- 25-Jul-07

The talk will show how a lot of classical results about topological manifolds can be proved using a little bit of controlled topology. more››

University of British Columbia

- 18-Jul-07

Understanding the stability of lipid bilayers

Lipid bilayers demonstrate an intriguing combination of properties: at a microscopic scale they consist of individual molecules without covalent bonding, but at larger scales they show behaviour reminiscent of elastic solids. Energy-based models, more››

University of British Columbia

- 12-Jul-07

Mappings of finite distortion: analysis in the extreme

Degenerate structures arise naturally in many questions in PDE's and calculus of variations as well as in their applications. Mappings of finite distortion study how far the powerful tools of geometric analysis can here reach; the theory of these more››

University of Washington

- 25-Jun-07

Viscous Hamilton-Jacobi(VHJ) equations (Part 6)

This is the final lecture more››

University of British Columbia

- 18-Jun-07

- 15-Jun-07

The spread and evolution of highly pathogenic Avian Influenza (HPAI) H5N1 in Africa

rtant consequences for surveillance in Africa and beyond. As they scavenge on many dead species, they may also function as conspicuous sentinels in the African continent, similar to raptors or swans in Europe or cats in Indonesia. Proper disposal more››

University of British Columbia

- 15-Jun-07

Many learners of mathematics seem to take a passive stance towards their studies, at best assenting to a sequence of definitions and theorems. The notion of personal example spaces will be developed as a setting for pedagogical strategies which ca more››

University of Alberta

- 11-Jun-07

- 4-Jun-07

- 28-May-07

- 25-May-07

Mathematics: An experimental Science

We'll discuss some recent results that were conjectured via computer experiments and then proved. The examples will be drawn from number theory, Young tableaux, hypergeometric determinant evaluation, theory of matrices of 0s and 1s, etc. Several u more››

University of British Columbia

- 23-May-07

Invasion percolation on regular trees

Invasion percolation is a dynamic process closely linked to critical percolation, but without an external parameter. In joint work with Omer Angel, Frank den Hollander and Gord Slade we showed that the cluster of inva more››

University of British Columbia

- 23-May-07

Making a Splash, Breaking a Neck: The development of complexity in physical systems

The fundamental laws of physics are very simple. They can be written on the top half of an ordinary piece of paper. The world about us is very complex. Whole libraries hardly serve to describe it. Indeed, any living organism exhibits a degree of c more››

University of Washington

- 22-May-07

The Good, the Bad, and the Awful: Scientific Simulation and Prediction

Worthwhile computer simulations are done to explore uncharted territory, resolve a well-posed scientific or technical question, or to make a design choice. Some excellent work is reviewed. Some less happy stories are recounted. I th more››

University of Washington