D R. L ISA D RISKELL
Last Updated 12/06/2012


Assistant Professor of Mathematics

Colorado Mesa University
Computer Science, Mathematics, and Statistics Department
Office: WS 134L
ldriskel@coloradomesa.edu
1100 North Avenue
Grand Junction, CO 81501
(970) 248.1824
How can it be that mathematics, being after all a product of human thought independent of experience, is so admirably adapted to the objects of reality? - Albert Einstein


Mount Rainier, WA. Dec. 2007.


Mother Daughter Rock, UT. May 2008.
S CHEDULE
T EACHING - Spring 2013
M ATH M ANIA
  • 1st and 3rd Tuesdays at 7pm
M ATH C LUB
  • Club Meetings: Fridays, 3pm
C OLLOQUIUM
  • Brown Bag: Fridays, 12-1pm
R ESEARCH
  • In General:
    - - Applied Math - - Dynamical Systems
    - - Mathematical Biology - - Cardiac Electrophysiology
  • Abstract :
    An arrhythmia is any disturbance from the normal periodicity of the heart beat, and alternans is one type of arrhythmia which can be a precursor to potentially fatal conditions of the heart. Dynamical systems have the ability to describe cardiac action potentials and are thus an invaluable tool in the pursuit to understand cardiac electrical activity. We developed a two-variable model as a modification of the popular Fitzhugh-Nagumo and Mitchell-Schaeffer models for electrical activity in excitable cells. Our model captures the major components of cardiac behavior while allowing for an explicit analysis of the propagation of electrical impulses in cardiac tissue. We examine the existence and stability of such traveling waves. Further, we use techniques of singular perturbation theory to derive and analyze an equation describing the onset and development of alternans in cardiac tissue.
L INKS [Lisa, age 1.5]
'Reading' my first math book
-age 1.5-