Add to ORKGExcept where due acknowledgement has been made, the work is that of the can-didate alone; The work has not been submitted previously, in whole or in part, to qualify for any other academic award; The content of the thesis is the result of work which has been carried out since the official commencement date of the approved research program; Any editorial work, paid or unpaid, carried out by a third party is acknowledged. Signed