Lebanese American University,Beirut, Professor at Institute of Space Sciences,Bucharest

Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University

Professor of Theoretical Physics, Physics Department, Cinvestav (Mexico)

Universidade de São Paulo

Department of Mathematics & Statistics, King Fahd University of Petroleum and Minerals …

Assistant Professor, Engineering Mathematics Dept., Faculty of Engineering, Cairo …

University of Tehran

Northeastern University

Assistant Professor, Department of Mathematics, Vellore Institute of Technology (VIT) …

Researcher