Department of Physics, Chemistry and Biology (IFM)

Acknowledgements

I would like to give many thanks to my supervisor Dr. Jordi Altimiras, not only for giving me the opportunity to work for him and to work in Bolivia but also for all the help he has given me throughout the thesis work. I would also like to thank Dr. Alvaro Garitano for lending me the N. ornatas’ and to my fellow co-workers at Universidad Mayor de San Andrés, La Paz Bolivia.