Dedications
I dedicate this modest dissertation:
To whom I bear his name, my dear father Abdelmadjid
No dedication can express my respect, love and consideration for the sacrifices
made for my well-being. You are the closest person to my heart, the friend and
supporter of my long journey.I am here thanks to your prayers, advices and
encouragement. May Allah keep you, bless you and grant you a long and healthy
life full of happiness so that you will be proud of me.
To my dear mother Ait oubeli Dalila
You are my angel in my life and the fountain of love and tenderness. May Allah
watch over you Preserve your health and grant you a long life full of happiness.I
wish you healing and speedy recovery and may God give you strength and
patience,You are the candle that lights my long way.
To my brothers
I wish you every success in your journey.
To my big sister
Inès, I wish you a life full of success, happiness and prosperity.
To my friends, my comrades and all my enssmalian family
I wish you a life full of success and prosperity in your lives and careers.