https://commons.ru.ac.za/vital/access/manager/Index ${session.getAttribute("locale")} 5 Narrating emergence in the curious terrain of academic development research: a realist perspective https://commons.ru.ac.za/vital/access/manager/Repository/vital:1675 Wed 12 Oct 2022 10:00:00 SAST ]]> A critical realist exploration of the implementation of a new curriculum in Swaziland https://commons.ru.ac.za/vital/access/manager/Repository/vital:1484 Wed 12 May 2021 22:50:04 SAST ]]> Biological synthesis of metallic nanoparticles and their interactions with various biomedical targets https://commons.ru.ac.za/vital/access/manager/Repository/vital:4009 50%). Thus, it can be concluded that the cavities of apoferitin and GroEL acted as nanobiofactories for the synthesis and confinement of the size and shape of nanoparticles. Furthermore, the interior of these proteins provided a shielding effect for these nanoparticles and thus reduced/prevented their possible neurotoxic effect and confirmed safety in their method of production and application. The findings from this study would prove beneficial in the application of these nanoparticles as a potential drug/drug delivery vehicle for the prevention, treatment/management of diseases associated with these enzymes/proteins.]]> Wed 12 May 2021 22:22:09 SAST ]]> Synthetic and bioactivity studies of antiplasmodial and antibacterial marine natural products https://commons.ru.ac.za/vital/access/manager/Repository/vital:4378 Wed 12 May 2021 20:56:27 SAST ]]> An analysis of ionospheric response to geomagnetic disturbances over South Africa and Antarctica https://commons.ru.ac.za/vital/access/manager/Repository/vital:5534 Wed 12 May 2021 20:15:43 SAST ]]> An investigation into the control of audio streaming across networks having diverse quality of service mechanisms https://commons.ru.ac.za/vital/access/manager/Repository/vital:4607 Wed 12 May 2021 19:09:32 SAST ]]> Nanocomposites of nickel phthalocyanines as electrocatalysts for the oxidation of chlorophenols an experimental and theoretical approach https://commons.ru.ac.za/vital/access/manager/Repository/vital:4326 Wed 12 May 2021 18:29:03 SAST ]]> Quantification of the cross-sectoral impacts of waterweeds and their control in Ghana https://commons.ru.ac.za/vital/access/manager/Repository/vital:5748 Wed 12 May 2021 18:28:57 SAST ]]> Curriculum reform in Lesotho: exploring the interface between environmental education and geography in selected schools https://commons.ru.ac.za/vital/access/manager/Repository/vital:1488 Wed 12 May 2021 18:17:34 SAST ]]> Identification of novel marine algal compounds with differential anti-cancer activity: towards a cancer stem-cell specific chemotherapy https://commons.ru.ac.za/vital/access/manager/Repository/vital:4143 Wed 12 May 2021 17:50:37 SAST ]]> Deciding and doing what's right for people and planet : an investigation of the ethics-oriented learning of novice environmental educators https://commons.ru.ac.za/vital/access/manager/Repository/vital:1913 Wed 12 May 2021 17:38:01 SAST ]]> A comparative polarimetric study of the 43 GHz and 86 GHz SiO masers toward the supergiant star VY CMa https://commons.ru.ac.za/vital/access/manager/Repository/vital:5454 Wed 12 May 2021 17:16:47 SAST ]]> Force of habit the mystical foundations of the narcotic https://commons.ru.ac.za/vital/access/manager/Repository/vital:2784 Wed 12 May 2021 17:15:53 SAST ]]> Photophysicochemical and photodynamic studies of phthalocyanines conjugated to selected drug delivery agents https://commons.ru.ac.za/vital/access/manager/Repository/vital:4333 Wed 12 May 2021 16:52:04 SAST ]]> Isolation, structural characterisation and evaluation of cytotoxic activity of natural products from selected South African marine red algae https://commons.ru.ac.za/vital/access/manager/Repository/vital:3862 Wed 12 May 2021 16:47:29 SAST ]]> Synthesis, characterization and antimicrobial activity of copper (II) complexes of some hydroxybenzaldimines and their derivatives https://commons.ru.ac.za/vital/access/manager/Repository/vital:4534 Wed 12 May 2021 16:27:58 SAST ]]> An investigation into the impact of fairtrade in South Africa https://commons.ru.ac.za/vital/access/manager/Repository/vital:1006 Wed 12 May 2021 16:27:00 SAST ]]> Bayliss-Hillman adducts as scaffolds for the construction of novel compounds with medicinal potential https://commons.ru.ac.za/vital/access/manager/Repository/vital:4410 Wed 12 May 2021 16:23:34 SAST ]]> An investigation into the antidiabetic and catalytic properties of oxovanadium(IV) complexes https://commons.ru.ac.za/vital/access/manager/Repository/vital:4320 99%) oxidation was achieved for an extended period. In addition, leaching of vanadium was mitigated by modification of the attached ligand or polymer material.]]> Wed 12 May 2021 16:19:47 SAST ]]> The feasibility of monetary integration within the SADC region https://commons.ru.ac.za/vital/access/manager/Repository/vital:1021 Wed 12 May 2021 15:57:09 SAST ]]> Participatory mapping, learning and change in the context of biocultural diversity and resilience https://commons.ru.ac.za/vital/access/manager/Repository/vital:1689 Tue 22 Nov 2022 10:29:59 SAST ]]> Assessing the effect of a laundry detergent ingredient (LAS) on organisms of a rural South African river https://commons.ru.ac.za/vital/access/manager/Repository/vital:6042 Thu 15 Jul 2021 20:34:36 SAST ]]> Farm level institutions in emergent communities in post fast track Zimbabwe: case of Mazowe district https://commons.ru.ac.za/vital/access/manager/Repository/vital:3308 Thu 13 May 2021 09:48:29 SAST ]]> The design, synthesis and antiplasmodial activity of a series of halogenated fosmidomycin analogues and hybrid drugs https://commons.ru.ac.za/vital/access/manager/Repository/vital:28538 Thu 13 May 2021 07:11:33 SAST ]]> Quality of work and work life: understanding the work ethic of medical professionals in selected hospitals in the Eastern Cape region of South Africa https://commons.ru.ac.za/vital/access/manager/Repository/vital:3323 Thu 13 May 2021 07:00:26 SAST ]]> Assessing the impacts of invasive non-native African sharptooth catfish Clarias Gariepinus https://commons.ru.ac.za/vital/access/manager/Repository/vital:5227 Thu 13 May 2021 06:47:50 SAST ]]> Electrochemical sensing and immunosensing using metallophthalocyanines and biomolecular modified surfaces https://commons.ru.ac.za/vital/access/manager/Repository/vital:5580 Thu 13 May 2021 06:37:27 SAST ]]> Development of a hydraulic sub-model as part of a desktop environmental flow assessment method https://commons.ru.ac.za/vital/access/manager/Repository/vital:6041 Thu 13 May 2021 06:03:25 SAST ]]> Young veterans, not always social misfits: a sociological discourse of Liberian transmogrification experiences https://commons.ru.ac.za/vital/access/manager/Repository/vital:3316 Thu 13 May 2021 05:43:26 SAST ]]> Pre-concentration of heavy metals in aqueous environments using electrospun polymer nanofiber sorbents https://commons.ru.ac.za/vital/access/manager/Repository/vital:4337 Thu 13 May 2021 05:17:41 SAST ]]> Comparative biogeography and ecology of freshwater fishes in the Breede and associated river systems, South Africa https://commons.ru.ac.za/vital/access/manager/Repository/vital:5372 Thu 13 May 2021 05:05:59 SAST ]]> Empirical modelling of the solar wind influence on Pc3 pulsation activity https://commons.ru.ac.za/vital/access/manager/Repository/vital:5464 Thu 13 May 2021 05:04:36 SAST ]]> Hydrological uncertainty analysis and scenario-based streamflow modelling for the Congo River Basin https://commons.ru.ac.za/vital/access/manager/Repository/vital:6029 Thu 13 May 2021 04:30:44 SAST ]]> Conveniencing the family in agri-based processing enterprise : a grounded theory study of strategic leaders' cultural assumptions and strategising activities https://commons.ru.ac.za/vital/access/manager/Repository/vital:1181 Thu 13 May 2021 04:29:25 SAST ]]> Systematic marine spatial planning and monitoring in a data poor environment: a case study of Algoa Bay, South Africa https://commons.ru.ac.za/vital/access/manager/Repository/vital:5373 Thu 13 May 2021 04:28:03 SAST ]]> Movement patterns, stock delineation and conservation of an overexploited fishery species, Lithognathus Lithognathus (Pisces: Sparidae) https://commons.ru.ac.za/vital/access/manager/Repository/vital:5374 600 km) between aggregation and spawning areas. This uncertainty in the level of connectivity among coastal regions was addressed using mitochondrial DNA sequencing and genotyping of microsatellite repeat loci in the nuclear genome, which showed no evidence of major geographic barriers to gene flow in this species. Samples collected throughout the white steenbras core distribution showed high genetic diversity, low genetic differentiation and no evidence of isolation by distance or localised spawning. Although historically dominant in several fisheries, analysis of long-term commercial and recreational catch data for white steenbras indicated considerable declines and ultimately stock collapse. Improved catch-per-unit-effort in two large MPAs subsequent to closure confirmed that MPAs can be effective for the protection of white steenbras. However, the current MPA network encompasses a low proportion of sandy shoreline, for which white steenbras exhibits an affinity. Many MPAs do not prohibit recreational shore angling, which currently accounts for the greatest proportion of the total annual catch. Furthermore, EPAs within the juvenile distribution protect a negligible proportion of the total available surface area of estuaries – habitat on which white steenbras is wholly dependent. Despite some evidence of recent increases in abundance in estuaries and the surf zone in certain areas, white steenbras meets the criteria for “Endangered” on the IUCN Red List of Threatened Species, and for “Protected species” status on the National Environmental Management: Biodiversity Act of South Africa. The species requires improved management, with consideration for its life-history style, estuarine dependency, surf zone residency, predictable spawning migrations and its poor conservation status. The multidisciplinary approach provides valuable information towards an improved scientific basis for the management of white steenbras and a framework for research that can be adopted for other overexploited, estuarine-associated coastal fishery species.]]> Thu 13 May 2021 04:06:38 SAST ]]> Electrospun nanofibers : an alternative sorbent material for solid phase extraction https://commons.ru.ac.za/vital/access/manager/Repository/vital:4314 Thu 13 May 2021 04:04:18 SAST ]]> Electrochemistry and photophysicochemical studies of titanium, tantalum and vanadium phthalocyanines in the presence of nanomaterials https://commons.ru.ac.za/vital/access/manager/Repository/vital:4313 Thu 13 May 2021 03:38:11 SAST ]]> The economics of converting a sheep farm into a springbuck (Antidorcas marsupialis) ranch in Graaff-Reinet: a simulation analysis https://commons.ru.ac.za/vital/access/manager/Repository/vital:1003 Thu 13 May 2021 03:12:00 SAST ]]> Studies on existing and new isolates of Cryptophlebia leucotreta granulovirus (CrleGV) on Thaumatotibia leucotreta populations from a range of geographic regions in South Africa https://commons.ru.ac.za/vital/access/manager/Repository/vital:5778 Thu 13 May 2021 03:03:20 SAST ]]> Mechanistic studies of unusual Miruta-Baylis-Hillman reactions https://commons.ru.ac.za/vital/access/manager/Repository/vital:4400 Thu 13 May 2021 02:57:41 SAST ]]> Transgressive Christian iconography in post-apartheid South African art https://commons.ru.ac.za/vital/access/manager/Repository/vital:2424 Thu 13 May 2021 01:54:54 SAST ]]> The heuristic significance of enacted visualisation https://commons.ru.ac.za/vital/access/manager/Repository/vital:1552 Thu 13 May 2021 01:42:27 SAST ]]> Development of molecularly imprinted polymer based solid phase extraction sorbents for the selective cleanup of food and pharmaceutical residue samples https://commons.ru.ac.za/vital/access/manager/Repository/vital:4309 97 % in selectively extracting the aflatoxins (AFB1, AFB2, AFG1 and AFG2). High reproducibility marked by the low %RSDs of < 1% and low LODs of ≤ 0.02 ng/g were calculated in all cases. The LODs were within the monitoring requirements of the European Commission. The results were validated with a peanut butter certified reference material. The chlorophyll MIP on the other hand selectively removed chlorophyll that would otherwise interfere during pesticide residue analysis (PRA) from > 0.6 to <0.09 Au in green plants extracts. The extracted chlorophyll was removed to far below the level of ≥ 0.399 Au that is usually associated with interference during PRA. Furthermore, the MIP demonstrated better selectivity by removing only chlorophyll (> 99%) in the presence of planar pesticides than the currently employed graphitized carbon black (GCB) that removed both the chlorophyll (> 88%) and planar pesticides (> 89%). For the interfering cholic acid during drug residue analysis, cholic acid MIP electrospun nanofibers demonstrated to be more sensitive and possessing higher loading capacity than the MIP particles. 100% cholic acid was removed by the nanofibers from standard solutions relative to 80% by the particles. This showed that the nanofibers have better performance than the micro particles and as such have potential to replace the particle based SPE sorbents that are currently in use. All the templates were optimally removed from the prepared MIPs by employing a novel pressurized hot water extraction template removal method that was used for the first time in this thesis. The method employed only water, an environmentally friendly solvent to remove templates to ≥ 99.6% with template residual bleeding of ≤ 0.02%.]]> Thu 13 May 2021 01:07:56 SAST ]]> A systematic revision of selected genera of afrotropical curtonotidae (Diptera: schizophora: ephydroidea) : a phylogenetic approach https://commons.ru.ac.za/vital/access/manager/Repository/vital:5627 Thu 13 May 2021 00:20:38 SAST ]]> A structural and functional specification of a SCIM for service interaction management and personalisation in the IMS https://commons.ru.ac.za/vital/access/manager/Repository/vital:4606 Mon 06 May 2024 05:23:01 SAST ]]>