Emeritus
University of Arizona (arizona.edu)
2005 – Present
Program Officer
National Science Foundation (nsf.gov)
2006 – 2021
Full Professor
University of Arizona (arizona.edu)
1988 – 2005
Full Professor
City University of New York, City University of New York (gc.cuny.edu)
1970 – 1988
Full Professor
CUNY Brooklyn College (brooklyn.cuny.edu)
1970 – 1987
Associate Professor
CUNY Brooklyn College (brooklyn.cuny.edu)
1969 – 1970
Assistant Professor
City University of New York, City University of New York (gc.cuny.edu)
1969 – 1970
Assistant Professor
Ohio State University, Columbus (osu.edu)
1964 – 1969
PhD student
Massachusetts Institute of Technology (mit.edu)
1961 – 1964
Undergrad student
Massachusetts Institute of Technology (mit.edu)
1957 – 1961