Doctoral Thesis of the Researcher\ Mariana Adel Sedqy will be discussed at the hall of Conferences, the 3^rd floor. The Discussion committee includes the following; Prof.Dr. Ali Gamal el Din Ezzat, Prof.Dr. Mohamed Shibl el Koumy, Prof.Dr.Nazeq Mohamed Abd el Lattef and Prof.Dr.Shaker Rizq Taqy El Din.