Dist. Univ. Research Prof of Math and Physics, Univ. of Maryland

Professor of astrophysics, university of Geneva

University of Maryland

Sixth Century Chair at University of Aberdeen

Professor for Theoretical Physics, Potsdam University, Germany

Naval Research Laboratory

Professor of Physics, University of California at Davis

Professor and Dean, R & D Centre, Vel Tech University, Chennai, INDIA

Professor of Theoretical Physics, Roma Sapienza

University of Tokyo & Niels Bohr Institute