Employment
- Oregon State University, Teaching Professor Emeritus 2005-
- Oregon State University, Professor of Physics, 1983-2005
- Oregon State University, Associate Professor of Physics, 1978-1983
- Oregon State University, Assistant Professor of Physics, 1974-1977
- Oregon State University, Graduate Faculty, Computer Science Department, 1996-
- Inst for Computational Math, Science, & Technology @ SUNY Brockport,
2005, 2006
- Center Advanced Computational Science, UCSD, Visiting Professor, 1997
- Institute for Nonlinear Science, UCSD, Visiting Professor, 1997
- Nuclear Theory Institute, Seattle, Fellow, Summers 1991, 1992
- IBM Research, Yorktown Heights, Visiting Professor, 1988
- University of Adelaide, Australia, Visiting Professor, 1988
- Melbourne University, Australia, Visiting Professor, 1988
- Weitzman Institute of Science, Visiting Scientist, 1982
- Hebrew University of Jerusalem, Visiting Scientist, 1982
- University of Surrey, UK, Fellow, 1981-1982
- Lawrence Berkeley Laboratory, Physicist, 1977-1978
- Tri Universities Meson Facility, Vancouver, Visiting Scientist, 1975-1985
- University of Pittsburgh, Research Associate, 1970-1972
- TRIUMF, Postdoctoral Fellow, 1972-1974