Composition of the Jury President: Prof. Luc Vanhame Secretary: Prof. Anna Marini Thesis Director: Prof. Joseph Vamecq Thesis Director: Prof. Véronique Kruys Examinators: Prof. Adelin Albert Prof. Pierre Andreoletti Prof. Jamal Ghoumid External experts/ Rapporteurs: Prof. Alain Leon Prof. Mustapha Cherkaoui Malka Vanhamme guest members Jean Boogaerts教授Mervyn Maze