% Acknowledgements  

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I would like to express my deepest gratitude to those who have supported me throughout my thesis journey. Their encouragement, patience, and belief in me have been invaluable.  

\subsection*{Family Members}  
To my beloved parents and my two brothers, whose unwavering support and sacrifices have been the foundation of my journey. I am deeply grateful for your encouragement, patience, and belief in my pursuit of knowledge. Your love and motivation, even from a distance, have kept me focused and inspired every step of the way.

\subsection*{Supervisor}  
I extend my sincere appreciation to my supervisor, Professor \textbf{CRISTINA EMMA MARGHERITA\allowbreak\ ROTTONDI}, for her invaluable guidance and trust. Her insightful feedback, dedication, and encouragement have greatly shaped my academic growth. Her patience and commitment have been instrumental in my progress.  

\subsection*{Friends and Colleagues}
Lastly, to all my friends, colleagues, and anyone who contributed to my academic journey, thank you. Your presence, discussions, and shared experiences have made this path memorable. The conversations we had, the debates we engaged in, and the moments of shared struggle and triumph have all shaped my understanding and approach to research. Your friendship and camaraderie have made this journey not only intellectually stimulating but also personally fulfilling. Whether through words of encouragement, shared laughter, or simply being there in times of need, you have all contributed significantly to my success. This thesis is as much a reflection of my hard work as it is a testament to the incredible support system that has surrounded me.