Master Thesis of the Researcher\ Marwa El Sayed Abu El Elaa will be discussed on Thursday, 16\4\2015 at 02:00pm. The Supervision committee includes the following; Prof.Dr. Ali Yousry El Eter, Prof.Dr. Helmy El Sayed Mijahed and Dr. Asmaa Abu El Soaoud. The Discussion committee includes the following; Prof.Dr. Saeed Abd El Rahman Saleh, Prof.Dr. Helmy El Sayed Mijahed and Prof.Dr. Ali Yousry El Eter.