During this journey far from home, I was so blessed to meet such incredible people with a warm hearth who helped me during the hardest time, to whom I am sincerely thankful.I will be always thankful to Mauricio Moreno-Zambrano for his endless support, help, patience and for being my strength in the hardest period, thanks my love for everything.Although, the words will never be enough, I would like to thank to my mother Gladys Torres for all she has done for me, for all her kindness, infinite love, for always encouraging me to reach my goals. Finally, a big thanks for the support of my beloved nieces Nathaly, Stephanie and Romy whom are always my inspiration. v vi