His area of research is in mathematical physics, and concerns superalgebras, W algebras and quantum groups, as well as applications in biophysics. Antonino Sciarrino is a Professor of theoretical physics at the University of Napoli "Federico II," Italy. He has carried research activities in algebraic approaches to quantum physics, particularly in high-energy scattering and grand unification models. His present scientific interests are in field theory and biophysics. Paul Sorba is the Director of Research at the CNRS, France, and head of the LAPTH. His research interests are in elementary particle physics and mathematical physics. He has delivered numerous courses and lectures on symmetries and their applications for graduate students in France and other European countries.