Visiting Fellow, Centre for Computational Chemistry 2006-2007
School of Chemistry
University of Bristol, Bristol, U.K.
(Sabbatical Leave)
GlaxoSmithkline Pharmaceuticals,
Upper Merion, PA
Consultant 1999-2001
(Sabbatical Leave)
National Cancer Institute,
Frederick Research Facility,Frederick MD
Visiting Scientist,1992-1993
(Sabbatical Leave)
Guest Researcher, 1993-1996
Princeton University,
Princeton, NJ
Visiting Fellow,1985-1986
(Sabbatical Leave)
Kansas State University,
Manhattan, KS
Instructor and Research
Asssociate, 1976-1978