Professor of Physics, Universidade Estadual Paulista

National Institute of Physics and Nuclear Engineering (IFIN-HH), Bucharest, Romania

University of Minnesota

Professor of Theoretical Particle Physics, University of Goettingen

TU Darmstadt

Physics Department, Federico II University, Naples, Italy

DRCE-CNRS, Laboratoire de Physique de l'Ecole Normale Superieure (Paris)

Professor of Applied Mathematics, Mansoura University, Egypt

Professor, Universidad de Antioquia

Professor of Theoretical Physics, University of Oldenburg