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Controlled release of an antimicrobial substance from polymeric matrices
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Why I Pay it Forward: Motivations and Basic Psychological Needs of Young Adult Peer Educators
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Board member success: The development of a competency model
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Linking microbial community dynamics and performance of a biological sulphate reducing system using a mixed volatile fatty acid stream as electron donor
Published 2021“…In addition, Desulfocurvus vexinensis and Desulfobulbus oligotrophicus were able to function at a VSLR of 0.42 g l-1 h -1 which suggests these two SRB species could be used effectively to reduce sulphate to hydrogen sulphide in wastewaters with higher VSLRs of up to 0.42 g l-1 h -1 when lactate was provided as an electron donor for BSR. …”
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An evaluation of oversight and accountability by the fourth Parliament of the Republic of South Africa
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Nutritional-associated changes in lipid metabolism affecting the pathogenicity of Cryptococcus neoformans
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Historical baselines and a century of change in the demersal fish assemblages on South Africa's Agulhas Bank
Published 2018“…Geostatistical delta-generalised linear mixed models were used to predict species distribution functions, which were used to calculate annual estimates of latitude/longitude centres of gravity and effective areas occupied by each population. …”
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Geographic variation in the phenotype of an African horseshoe bat species, Rhinolophus damarensis, (Chiroptera: Rhinolophidae)
Published 2018“…Morphometric and echolocation measurements were taken from hand held individual bats in the field, and skull measurements were taken from field collected voucher specimens as well as museum specimens. Discriminant Function Analyses (DFA) revealed that there was geographic variation among populations and lineages of R. damarensis. …”
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A numerical assessment of architectural parameters for anisotropic behavior in idealised trabecular structures
Published 2019“…The structural anisotropy varies from fully equiaxed to highly directional based on where the trabecular bone is located and what the function would be. The mean intercept length has been proposed as a measure of the structural anisotropy, specifically the interfacial anisotropy of the sample, which is commonly used to account for the mechanical anisotropy. …”
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Synthesis of monodisperse silver nanoparticles for antibacterial purposes
Published 2019“…These include: further optimisation of the nanoparticle synthesis procedure so as to produce particles of the desired size and acquire them in powder form, performing a thermodynamic estimation of the equilibrium silver ion concentration as a function of silver nanoparticle size to quantify the effect nanoparticle size will have on bactericidal activity, and using more realistic water conditions for antibacterial efficacy experiments to simulate the environment in which silver nanoparticles will be applied.…”
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Stable isotope ecology of South African kelp forests
Published 2019“…Stable Isotope Analysis (SIA) is an indispensable tool for investigating food web characteristics, with particular focus on trophic structure and functioning. SIA can be used to understand the basal isotope variability in producers, determine the primary carbon sources of food webs, and investigate the spatial and temporal patterns in consumer isotope values and trophic niches. …”
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Characterization of Mycobacterium tuberculosis-specific Th22 cells in HIV-TB co-infection
Published 2020“…A major focus of this thesis is the contribution of an understudied Th subset in Mtb immunity, namely Th22 cells, producing the cytokine IL-22. IL-22 functions to preserve mucosal barriers and induce antimicrobial peptides, contributing to protective immunity to a range of extracellular and intracellular bacteria. …”
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In vitro modelling of cellular haemozoin and inhibition by β-haematin inhibitors and their derivatives
Published 2021“…Further investigations into the exchangeable haem amounts as a function of intracellular test compound amounts at the IC50 values of these β-haematin inhibitors highlighted that there was an apparent 1:1 relationship with the amount of intracellular exchangeable haem, indicative of complex formation. …”
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Diagenetic, thermal and provenance histories of the Permian lower Ecca Group based on two newly drilled boreholes in the western and eastern main Karoo Basin, South Africa
Published 2021“…Provenance was investigated using Discriminant Function Diagrams, Principle Component Analysis Results (PCA), Zr/Ti ratios and the Index of Compositional Variability (ICV). …”
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A pharmacokinetic and antimalarial efficacy evaluation of pyridodibemequines and their metabolites
Published 2021“…Consequently, a novel series of dual functioning pyridodibemequine (PDBQ) compounds were designed with the intention of reversing resistance in chloroquine-resistant (CQR) strains of Plasmodium falciparum. …”
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The design of an intervention programme to address the prevalence of obesity and physical fitness of adolescents attending high school
Published 2022“…These were high prevalence of obesity and overweight, low PA levels, poor cardiovascular function , low muscular power and poor muscular endurance across the sample. …”
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Investigation of particulate Bluetongue virus vaccines made in plants
Published 2023“…This is a result of the Culicoides insect vectors which function optimally in warm and wet climates. In South Africa, the eradication and control of BTV is made difficult due to the circulation of 21 of the 28 known serotypes and their limited serological cross-reactivity. …”
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Maternal and child health outcomes in relation to accessibility, spatial distribution, inequality and free maternal care in Kenya
Published 2025“…I also decompose the factors that explain the inequality in the utilisation of maternal health care between the poor and non-poor using recentered influence functions (RIFs). The results show the presence of substantial inequalities which favour the non-poor. …”
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Development and characterisation of a heparinised fibrin hydrogel as a delivery vehicle for regenerative medicine
Published 2025“…As delivery of stem cells within hydrogels is a key present function of regenerative hydrogels, the impact of the heparinised fibrinogens on ADSC differentiation underwent preliminary investigation. …”
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