Alumnus

1976 to 1978

Associate Professor, Ohio State University

1993 to 1996

Professor and Chair, Applied Mathematics, Katholische University, Germany

2012 to 2018

Instructor, Mathematics, Oregon State University

1981 to 1987

Research Physicist, U.S. Food and Drug Administration

1994 to 1999

Chief of the Drinking Water Treatment & Distribution Branch, U.S. Environmental Protection Agency

1987 to 1993

1984 to 1993

1978 to 1982

Scientist (Retired, NASA)

1989 to 1994

Professor, University of Michigan Ann Arbor

1994 to 1999

Directora, Consejo Zacatecano de Ciencia, Tecnologia e Innovacion