Dr. Hussein is a theoretical physicist whose research focuses on phenomenological models of hadronic interactions in particle physics and the clustering phenomena of particle production in hadron-nucleus and nucleus-nucleus interactions. He was the president of the Academy of Scientific Research and Technology in Egypt from 2008 to 2010 and professor of theoretical physics and vice dean for education at the faculty of science of Cairo University from 2004 to 2007. A member in the council of the Atomic Energy Authority of Egypt, he was selected as the vice president of SESAME (Synchrotron-light for Experimental Science and Applications in the Middle East) project in 2010.