Doctoral Thesis of the Researcher\ Yasmin Mohamed El Sebaee Abd El Hamid will be discussed at the hall of Conferences, the 3^rd floor. The Discussion committee includes the following; Prof.Dr. Ghada Mamdouh Abd el Hafeez, Ass.Prof.Abd El Moanem Abd El Mageed Ali, Ass.Prof.Ghada Abd El Qader Abd El Azeem and Prof.Dr.Eman Adawy Hanfy.