ESAM Colloquium

Title: Unsolved Problems of the Heart
Speaker: Professor A. Winfree
Speaker Info: U. Arizona
Brief Description:
Special Note: Note unusual day

The electrical behavior of heart muscle is normally periodic, but can go turbulent. This change of dynamical mode does not require a change of parameters: it is an alternative basin of attraction. The difference stems from there being two kinds of "action potential": the linearly propagating pulse of the text books, and alternative vortex-like solutions. The latter, called "rotors" have many curious properties, especially in 3 dimensions. They are better understood by computation than by analysis or by in-vivo experiments, at the moment. But experiments do confirm their existence and crucial role in starting "sudden cardiac death.
Date: Tuesday, November 2, 1999
Time: 4:00pm
Where: Tech M416
Contact Person: Department of Engineering Sciences And Applied Mathematics
Contact email: majordomo@seminar.esam.nwu.edu
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