Manoeuvring in Uncertainty : On Agency, Strategies and Negotiations
Sub-Saharan Africa has seen wide-ranging economic and political change alongside civil and international wars. This volume focuses on the radical social uncertainties there, and how social actors perceive and cope with them in their everyday lives. It also suggests some ways to conceptualize both the actions and the environment of uncertainty.
Rethinking precarity: understandings of and responses to precarity by Zimbabwean migrant security guards in South Africa’s PSI in Gauteng province
A dissertation submitted to the Global Labour University in conformity with the requirements of a MA in Labour Policy and Globalisation School of Social Sciences Faculty of Humanities University of the Witwatersrand, 
Johannesburg March 2016
Remotely-Piloted Helicopter Citrus Yield Map Estimation
A remotely-piloted Gas Xcell mini-helicopter with GPS, wireless Ethernet, and a machinevision system was flown over orange trees to take overhead images. The individual tree images were processed to estimate the number of orange pixels in the images. The fruit yield of individualtrees at harvest a month later had an r-squared value of 0.373 with the number of orange pixels onthe irrigated tree images. While it was demonstrated that a remotely-piloted mini-helicopter could beused to acquire useful overhead images of citrus trees, substantial further research is needed toimprove the accuracy of estimates of individual tree yields or health.