Chairman, Department of Physics, Bar-Ilan University, (Ramat-Gan, Israel), 1967-70
 
Dean, Faculty of Natural Sciences, Bar-Ilan University, 1969-71 

Member, Israel Council for Research and Development (Prime Minister's Office), 1970-73 

Member, Board of Trustees and Executive Council, Bar-Ilan University, 1971-74, 1979-81 

Chairman, Bar-Ilan University Committee on Science-based Industries, 1973-76 

Chairman, Bar-Ilan University Committee for Doctoral Studies, 1975-80 

Member, Board of Trustees, Jerusalem (Israel) Institute of Technology, 1979-81 

Head, Physics Division, United States-Israel Binational Science Foundation, 1978-81 

Vice-President, Israel Physical Society, 1978-79 

President, Israel Physical Society, 1979-82 

Chairman, Department of Physics and Astronomy, Iowa State University, 1990-94