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High-frequency correlation dynamics: Is the Epps effect a bias?
Published 2021“…We derive the Epps effect arising from asynchrony and provide a refined approach to correct the effect. We compare methods to correct for the Epps effect arising from asynchrony when the underlying process is a Brownian diffusion, and when the underlying process is from discrete connected events (proxied using a D-type Hawkes process). …”
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Investigation of the applicability of a cleaner production approach to road side catering in urban Africa
Published 2020“…The specific objectives of this thesis were to: ➢ Compare the resource usage and pollution loads associated with traditional vs. cleaner methods of informal roadside food and drink preparation; ➢ Establish whether the cost-savings deriving from increased resource efficiency of cleaner methods would be sufficient motivation for producers to adopt these; ➢ Observe and document other constraints to the adoption of cleaner methods of production by attempting to demonstrate resource efficiency gains and emission reductions possible under real conditions of informal food and drinks production. …”
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An Assessment of the South African Photovoltaic Sector within the Technological Innovation System Framework
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An analysis of hybrid hidden Markov models for cetacean detection
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Future applications of near infrared spectroscopy (NIRS) in the South African brandy and distillation industry
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Operational modelling of geomagnetic fields and geomagnetically induced currents
Published 2022“…Various aspects of this novel empirical approach have been tested using datasets from power networks in four mid-latitude countries, with consistent results found across the different contexts. The novel empirical ensemble method shows improvements compared with previous empirical models, regardless of data fidelity or coverage. …”
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Relationship between semen viscosity and male genital tract infections
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Essays on current account dynamics and fiscal rules in sub-Saharan Africa
Published 2021“…A difference in differences model was then estimated using the treatment effect method. The results reveal that there is a significant improvement in fiscal performance for countries which have fiscal rules compared to those without fiscal rules. …”
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Determining the potential of available predictive algorithms in determining dietary iron bioavailability in South African children
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Are the relevant provisions of the Rotterdam Rules dealing with the identification of the carrier an improvement over the Hamburg and Hague-Visby Rules?
Published 2018“…The carrier identity problem is one that may arise in the context of the international carriage of goods by sea. …”
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Depression amongst caregivers of children and adolescents with perinatally acquired HIV in Cape Town, South Africa
Published 2023“…Few studies have focused on the specific factors associated with caregiver depression in the context of caring for ART-treated and untreated PHIV. …”
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Treatment-resistant ophthalmoplegia in myasthenia gravis: Clinical, molecular and functional studies of patient-derived orbital tissues
Published 2023“…Dysregulation of these pathways is likely to impact EOM regeneration in the context of MG-induced complement-mediated attack as well as contractility in this specialized muscle allotype with a high firing rate. …”
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Study of enzymatic hydrolysis to improve sugar production from steam-pretreated sweet sorghum bagasse and triticale straw
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Power disputes : a missiological dialogue between strategic level spiritual warfare and mystical powers in African religion
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Building a model for development of a national trauma registry: designing and implementing standardised trauma form at regional hospitals in Tanzania
Published 2022“…Methods: This mixed methods participatory action research utilised Susman and Evered's approach to develop and implement a standardised trauma form, using its five steps: diagnosis, action planning, intervention, evaluation and specifying learning. …”
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