
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

Office Hours  M: 4:305:00, T: 35, W: 4:305:00, R: 910, 34.


T
EACHING  Spring 2014

 MATH 113: College Algebra
 MATH 151: Calculus I
 MATH 452: Introduction to Real Analysis I


M
ATH
M
ANIA


M
ATH
C
LUB

 Club Meetings: Wednesdays, 4:30pm, WS 112

C
OLLOQUIUM

 Brown Bag: Fridays, 121pm


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 twovariable model as a modification of the popular
FitzhughNagumo and MitchellSchaeffer 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

'Reading' my first math book age 1.5



