Professional Experience

Postdoctoral research associate:
      Arizona State University fall 1985

Lecturer:
      Arizona State University fall 1985
      University of Texas 1986-1988

Assistant Professor:
      Northeast Missouri/Truman State University 1988-1995

Visiting Research Scientist:
      Silwood Park, Ascot England summer 1996
      AgResearch, Lincoln, New Zealand 1996-1997

Associate Professor:
      Northeast Missouri/Truman State University 1995-2001

Visiting Professor:
      ETH, Zurich, Switzerland summer 2000

Professor and Chair:
      Hope College 2001-