THIS WORK WAS CARRIED OUT UDER THE SUPERVISION OF

I dedicate this work to all my relatives- those who can enjoy my happiness with me, and those who did not have an opportunity to live until this work was finished. It’s dedicated to my beloved grandfather Menashe Averbuh, who was the main family inspirer of coming to The Promised Land and did not reach the moment of achieving his dream, to my grandmother Miriam Averbuh who passed away in old age, to Dr. Yakov Zigelboim who was brutally killed, and others. I thank my beloved parents Gregory and Roza Kotlyar and my relatives Monik Zigelboim, Ada Shabat, and Shabtai Shabat for supporting me in all the meanings of the word. I appreciate the contribution of my advisors to my work. I also than