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ii DEDICATION I dedicate this work to my family and friends that helped me in reaching my academic goals and become the person I am today. I would like to give the most recognition to the following people: My parents, Sukhpal and Lakhbir Benipal who have been my role model for hard work throughout my whole life. I deeply appreciate their love, support, encouragement and faith in me. My grandfather, Raghbir Benipal who always emphasized the importance of education and provided me unconditional encouragement and support