Ph.D., H.U., Jerusalem
Research Associate, Dept. of Chemistry, Harvard Univ.
Visiting scientist, Dept of Nutrition and Food Science, Mass.Inst. of Technology
Visiting scientist, E.I.du Pont de Nemours & Co. Wilmington
Visiting scientist, The Pillsbury Company, Minneapolis
Visiting Professor, Dept Biochemistry and Molecular Biology, Uniformed Services University of the Health Sciences, Beteshda
Vice chairman of the International Committee on Economic and Applied Microbiology (ICEAM),
Member of the Editorial Board of Biotechnology - A multivolume comprehensive treatise.