ACKNOWLEDGEMENTS. I would like to express my special appreciation and thanks to my advisor Professor Dr. Reg A. Williams, you have been a tremendous mentor for me. I would like to thank you for encouraging my research and for allowing me to grow as a research scientist. Your advice on both research as well as on my career have been invaluable.
ACKNOWLEDGEMENTS A doctoral thesis is often described as a solitary endeavour; however the long list that follows definitely proves the opposite. First and foremost, I am deeply grateful for the continuous support, insight and patience of my supervisors, Dr Jane Hawkes and Dr Katy Cubitt: without their.