https://commons.ru.ac.za/vital/access/manager/Index ${session.getAttribute("locale")} 5 Smashing the crystal ball: post-structural insights associated with contemporary anarchism and the revision of blueprint utopianism https://commons.ru.ac.za/vital/access/manager/Repository/vital:3311 Wed 12 May 2021 23:47:17 SAST ]]> Teaching pharmacology: issues of language and learning in a multilingual classroom setting https://commons.ru.ac.za/vital/access/manager/Repository/vital:9562 Wed 12 May 2021 23:37:30 SAST ]]> The diet and ecological role of black-backed jackals, Canis Mesomelas, in two conservation areas in the Eastern Cape Province, South Africa https://commons.ru.ac.za/vital/access/manager/Repository/vital:5660 Wed 12 May 2021 23:31:40 SAST ]]> Investigating the incorporation of education about, in/through and for the environment in the Geography junior phase curriculum: a case study of three Namibian schools https://commons.ru.ac.za/vital/access/manager/Repository/vital:1594 Wed 12 May 2021 23:26:11 SAST ]]> Investigating the devolution of decision-making in the Nelson Mandela Bay Municipality https://commons.ru.ac.za/vital/access/manager/Repository/vital:9053 Wed 12 May 2021 23:21:54 SAST ]]> Comparative in-vitro activities of trimethoprimsulfamethoxazole and the new fluoroquinolones against confirmed extended spectrum beta-lactamase producing Stenotrophomonas maltophilia in Nkonkobe Municipality, Eastern Cape environment https://commons.ru.ac.za/vital/access/manager/Repository/vital:11275 0.05). The newer fluoroquinolones are a possible alternative treatment option for S. maltophilia infections in this environment but further studies and clinical investigations are needed to determine the in vivo efficacy of these drugs.]]> Wed 12 May 2021 22:57:08 SAST ]]> Environmental health work methods and procedures for the surveillance and control of cholera in the KwaZulu-Natal Province, South Africa https://commons.ru.ac.za/vital/access/manager/Repository/vital:9836 Wed 12 May 2021 22:37:21 SAST ]]> Gravitational entropy and thermodynamics away from the horizon https://commons.ru.ac.za/vital/access/manager/Repository/vital:6818 Wed 12 May 2021 20:58:49 SAST ]]> Community development through the ward committee structures in the Northern areas of the Nelson Mandela Bay Municipality https://commons.ru.ac.za/vital/access/manager/Repository/vital:8274 Wed 12 May 2021 20:25:32 SAST ]]> The contribution of the trade in medicinal plants to urban livelihoods: a case study of the informal markets in Nelson Mandela Bay Municipality, Eastern Cape https://commons.ru.ac.za/vital/access/manager/Repository/vital:10654 Wed 12 May 2021 20:09:19 SAST ]]> An investigation into refuge trauma experiences in an ethnic Somali community in Port Elizabeth, South Africa https://commons.ru.ac.za/vital/access/manager/Repository/vital:8275 Wed 12 May 2021 20:07:49 SAST ]]> Assesssing small business training programme effectiveness in an incubator setting and beyond https://commons.ru.ac.za/vital/access/manager/Repository/vital:9298 Wed 12 May 2021 19:56:39 SAST ]]> Development of a degreasing and anti-fogging formulation for wet wipe application for automotive glass surfaces https://commons.ru.ac.za/vital/access/manager/Repository/vital:10418 Wed 12 May 2021 19:53:29 SAST ]]> The effectiveness of the integrated quality management system to improve the performance of educators in the East London District https://commons.ru.ac.za/vital/access/manager/Repository/vital:9452 Wed 12 May 2021 19:52:53 SAST ]]> Commensal bacteria belonging to the Staphylococcus Acinetobacter and Stenotrophomonas genera as reservoirs of antibiotic resistance determinants in the environment of Nkonkobe Municipality, Eastern Cape Province , South Africa https://commons.ru.ac.za/vital/access/manager/Repository/vital:30551 2 for Staphylococcus species, Acinetobacter species and Stenotrophomonas maltophilia suggest that they have arisen from high-risk sources where antibiotics are in constant arbitrary use resulting in high selective pressure. The presence of tetracycline resistance genes in Acinetobacter species justifies the observed phenotypic resistance to oxytetracycline and intermediate resistance to minocycline. High phenotypic resistance and the presence of some resistance genes in Staphylococcus species is a possible threat to public health and suggests animals to be important reservoirs of antibiotic resistance determinants in the environment. Indiscriminate use of antibiotics induces this kind of antibiotic resistance and should be discouraged. Personal hygiene is encouraged as it reduces the load of Acinetobacter species contacted from the environment that may be difficult to control. Commensal Stenotrophomonas maltophilia are as important as their clinical counterparts due to their roles in opportunistic infection, antibiotic resistance and their associated genes, especially sul gene. Personal hygiene is hereby advocated especially when in contact with soil, plants and plants’ rhizospheric soil]]> Wed 12 May 2021 19:45:00 SAST ]]> The‘person without the person’ in the early work of Paul Emmanuel: https://commons.ru.ac.za/vital/access/manager/Repository/vital:38666 Wed 12 May 2021 19:24:56 SAST ]]> Developing a form-process framework to describe the functioning of semi-arid alluvial fans in the Baviaanskloof Valley, South Africa https://commons.ru.ac.za/vital/access/manager/Repository/vital:4825 Wed 12 May 2021 19:22:58 SAST ]]> The impact of customer relationship management on retail banking using self-service channels https://commons.ru.ac.za/vital/access/manager/Repository/vital:9346 Wed 12 May 2021 19:19:00 SAST ]]> Women leadership: a case study in the Otjozondjupa Region, Namibia https://commons.ru.ac.za/vital/access/manager/Repository/vital:1825 Wed 12 May 2021 19:18:30 SAST ]]> The prevalence of overweight and obesity of six to nine year old black African children in a rural town of Mpumalanga https://commons.ru.ac.za/vital/access/manager/Repository/vital:10090 Wed 12 May 2021 19:18:25 SAST ]]> Case study of the educational experiences of four teenage mothers in two high schools in the Buffalo City Metropole https://commons.ru.ac.za/vital/access/manager/Repository/vital:16168 Wed 12 May 2021 19:16:25 SAST ]]> The social and political identities of coloured women in the northern areas of Port Elizabeth https://commons.ru.ac.za/vital/access/manager/Repository/vital:8261 Wed 12 May 2021 19:15:12 SAST ]]> Dynamics of a lattice Universe : the dust approximation in cosmology https://commons.ru.ac.za/vital/access/manager/Repository/vital:6789 Wed 12 May 2021 19:09:31 SAST ]]> Savings behaviour in selected poor townships of the Kouga municipal district https://commons.ru.ac.za/vital/access/manager/Repository/vital:9009 Wed 12 May 2021 18:56:48 SAST ]]> An evaluation of changes in capital investment by automotive companies in preparation for the Automotive Production and Development Programme (APDP) https://commons.ru.ac.za/vital/access/manager/Repository/vital:8797 Wed 12 May 2021 18:51:29 SAST ]]> Design of realistic hybrid marine resource management programs in Oceania https://commons.ru.ac.za/vital/access/manager/Repository/vital:29681 Wed 12 May 2021 18:44:29 SAST ]]> An assessment of the implementation of learner discipline policies in four high density secondary schools in the Graaff Reinet district, Eastern Cape. https://commons.ru.ac.za/vital/access/manager/Repository/vital:16218 Wed 12 May 2021 18:43:51 SAST ]]> A comparative study of the language, mathematics and science literacy knowledge and skills of grade 9 learners in secondary schools in Port Elizabeth https://commons.ru.ac.za/vital/access/manager/Repository/vital:9566 Wed 12 May 2021 18:42:16 SAST ]]> An evaluation of political participation by coloured people, 1994-2009 https://commons.ru.ac.za/vital/access/manager/Repository/vital:8184 Wed 12 May 2021 18:33:04 SAST ]]> Trends and volatility in residential property prices in South Africa https://commons.ru.ac.za/vital/access/manager/Repository/vital:9012 Wed 12 May 2021 18:29:08 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 ]]> Appraisal of community-based childcare practices in rural Malawi: the case of Malili traditional authority area, Lilongwe District https://commons.ru.ac.za/vital/access/manager/Repository/vital:11945 Wed 12 May 2021 18:00:34 SAST ]]> Evaluating impact assessment of LED projects in Makana Municipality https://commons.ru.ac.za/vital/access/manager/Repository/vital:9062 Wed 12 May 2021 17:46:14 SAST ]]> Trophic ecology of breeding northern rockhopper penguins, Eudyptes Moseleyi, at Tristan da Cunha, South Atlantic Ocean https://commons.ru.ac.za/vital/access/manager/Repository/vital:5788 90% in the last 130 years), the cause(s)of which are unknown. There is a paucity of data on this species in the South Atlantic Ocean, therefore their trophic ecology at Tristan da Cunha was studied, specifically focusing on diet, using stomach content analysis and stable isotope analysis (SIA), in conjunction with an analysis of diving behaviour, assessed using temperature-depth recorders. In order to evaluate the influence of gender on foraging, a morphometric investigation of sexual dimorphism was confirmed using molecular analysis. Additionally, plasma corticosterone levels were measured to examine breeding stage and presence of blood parasites as potential sources of stress during the breeding season. Northern Rockhopper penguins at Tristan da Cunha displayed a high degree of foraging plasticity, and fed opportunistically on a wide variety of prey, probably reflecting local small-scale changes in prey distribution. Zooplankton dominated (by mass) the diet of guard stage females, whereas small meso-pelagic fish (predominantly Photichthyidae)dominated diet of adults of both sexes in the crèche stage, with cephalopods contributing equally in both stages. Adults consistently fed chicks on lower-trophic level prey (assessed using SIA), probably zooplankton, than they consumed themselves indicating that the increasing demands of growing chicks were not met by adults through provisioning of higher- quality prey. SIA also indicated that adults foraged in different oceanic water masses when feeding for self-maintenance and for chick provisioning, thus temporally segregating the prey consumed for different purposes. It is possible that adults ‘selected’ these higher quality prey for themselves, or this may be a reflection of opportunistic behaviour. At Tristan da Cunha sexual dimorphism was observed in culmen dimensions (length, depth, width), with males having larger beaks and feeding on larger individuals of squid and fish than females. No sexual segregation in terms of foraging habitat (i.e. different water masses, based on ð¹³N or trophic level ð¹⁵N) during the breeding season or pre-moult period was revealed through SIA, and stomach content analysis revealed no sexual differences in prey species targeted. The results of SIA of feathers indicate that during the pre-moult period birds foraged in different water masses than during the breeding period. The fact that throughout the breeding season birds foraged in similar habitats suggests no intra-specific competition, despite both sexes feeding on the same prey.Birds were generally diurnal, daily foragers (12 – 16 hr trips), with extended trips (maximum duration 35.5 hours) and nocturnal diving recorded in a few individuals. Birds dived well within their physiological limits, predominantly utilising the upper 20m of the water column, employing two different strategies to target different prey items. Long, deep (30 – 40 m), energetically costly dives were performed when targeting energy-rich prey (fish), and a greater number of shorter, shallower (5 – 20 m), energy-efficient dives were performed when targeting prey with a lower energy content (zooplankton). More than half of the sampled study population were infected with the intra-cellular blood parasite Babesia, but infection showed no relationship to body mass, corticosterone levels or breeding success. Fasting birds showed no signs of elevated corticosterone levels, suggesting they had acquired sufficient fat reserves prior to breeding. Failed breeders did not exhibit elevated corticosterone levels. Tristan skuas, Catharacta antarctica hamiltoni, were observed to be a significant cause of egg and chick mortality. The absence of sex-based differences in foraging, and the absence of any signs of stress in relation to body mass, presence of Babesia or breeding stage, suggest that there are no obvious signs of high levels of stress or food limitations during breeding at Tristan da Cunha.]]> Wed 12 May 2021 17:44:40 SAST ]]> Investigation into the factors militating against the performance of grade 12 business studies learners in the Mthatha District of the Eastern Cape Province of South Africa https://commons.ru.ac.za/vital/access/manager/Repository/vital:18469 Wed 12 May 2021 17:40:58 SAST ]]> An investigation of the learning processes that take place during practical work activities when using electrical circuit boards in grade: a case study https://commons.ru.ac.za/vital/access/manager/Repository/vital:1961 Wed 12 May 2021 17:36:20 SAST ]]> Performance of defensive shares on the JSE during financial crisis: evidence from analysis of returns and volatility https://commons.ru.ac.za/vital/access/manager/Repository/vital:1001 Wed 12 May 2021 17:14:28 SAST ]]> The integration of mapwork and environmental issues using local context in FET Geography: an investigation of current pedagogic practices to inform professional development https://commons.ru.ac.za/vital/access/manager/Repository/vital:1580 Wed 12 May 2021 16:47:56 SAST ]]> Budgeting, forecasting and financial planning as a strategic tool in the Eastern Cape's manufacturing industry https://commons.ru.ac.za/vital/access/manager/Repository/vital:8940 Wed 12 May 2021 16:30:00 SAST ]]> Effective and efficient performance management in local government, with reference to the Cacadu District Municipality https://commons.ru.ac.za/vital/access/manager/Repository/vital:8161 Wed 12 May 2021 16:18:22 SAST ]]> Effect of cultivar on the quality of flax and hemp grown in South Africa https://commons.ru.ac.za/vital/access/manager/Repository/vital:9387 Wed 12 May 2021 16:14:35 SAST ]]> Suicide - a global overview and focus on the South African situation https://commons.ru.ac.za/vital/access/manager/Repository/vital:30560 Wed 12 May 2021 16:13:19 SAST ]]> Remembering Jakes - Chancellor, our chancellor https://commons.ru.ac.za/vital/access/manager/Repository/vital:7584 Wed 12 May 2021 16:07:17 SAST ]]> Gender paper to be presented to the ANC Policy Conference 2012: discussion document https://commons.ru.ac.za/vital/access/manager/Repository/vital:29304 Wed 12 May 2021 15:59:48 SAST ]]> Using co-located radars and instruments to analyse ionespheric events over South Africa https://commons.ru.ac.za/vital/access/manager/Repository/vital:5493 Wed 12 May 2021 15:59:02 SAST ]]> A study of four-dimensional oscillator groups and the associated left-invariant control affine systems https://commons.ru.ac.za/vital/access/manager/Repository/vital:41186 Wed 12 May 2021 14:40:49 SAST ]]> The NINJA-2 catalog of hybrid post-Newtonian/numerical-relativity waveforms for non-precessing black-hole binaries https://commons.ru.ac.za/vital/access/manager/Repository/vital:6788 Wed 07 Jul 2021 11:56:53 SAST ]]> An ion-imprinted polymer for the selective extraction of mercury(II) ions in aqueous media https://commons.ru.ac.za/vital/access/manager/Repository/vital:6566 Wed 05 Apr 2023 08:50:45 SAST ]]> A highly selective and sensitive pyridylazo-2-naphthol-poly (acrylic acid) functionalized electrospun nanofiber fluorescence “turn-off” chemosensory system for Ni 2+ https://commons.ru.ac.za/vital/access/manager/Repository/vital:51428 Wed 05 Apr 2023 08:50:33 SAST ]]> Interaction of CdTe quantum dots with 2, 2-diphenyl-1-picrylhydrazyl free radical https://commons.ru.ac.za/vital/access/manager/Repository/vital:51402 Tue 24 May 2022 21:58:32 SAST ]]> The saga of South African POWs in Angola, 1975-82 https://commons.ru.ac.za/vital/access/manager/Repository/vital:29592 Tue 24 Aug 2021 16:19:53 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 ]]> A comparative study on the sensitive detection of hydroxyl radical using thiol-capped CdTe and CdTe/ZnS quantum dots https://commons.ru.ac.za/vital/access/manager/Repository/vital:51077 MPA-CdTe@ZnS > TGA-CdTe > MPA-CdTe QDs. Under the optimum conditions, a limit of detection as low as 8.5 × 10-8 M was obtained using GSH-CdTe@ZnS. The effects of foreign reactive oxygen species and the Fenton reactants and products as possible interferences on the proposed probe were negligible for CdTe@ZnS QDs. Besides, experimental results indicated that CdTe@ZnS QDs were more attractive for the selective recognition of ●OH than CdTe QDs. The mechanistic reaction pathway between the QDs and ●OH is proposed.]]> Tue 17 May 2022 14:45:18 SAST ]]> Students’ navigation of the uncharted territories of academic writing https://commons.ru.ac.za/vital/access/manager/Repository/vital:44626 Tue 05 Oct 2021 14:10:53 SAST ]]> The economics of suicide in South Africa https://commons.ru.ac.za/vital/access/manager/Repository/vital:69155 Thu 19 Oct 2023 11:48:11 SAST ]]> A production function for cricket: the South African perspective https://commons.ru.ac.za/vital/access/manager/Repository/vital:69143 Thu 19 Oct 2023 11:10:07 SAST ]]> Synthesis and photophysical properties of peripherally and non-peripherally mercaptopyridine substituted metal free, Mg (II) and Al (III) phthalocyanines https://commons.ru.ac.za/vital/access/manager/Repository/vital:51131 Thu 19 May 2022 12:25:05 SAST ]]> Implications of food value chain support structures for water resource management by smallholder farmers in the Eastern Cape Province https://commons.ru.ac.za/vital/access/manager/Repository/vital:11181 Thu 13 May 2021 14:07:32 SAST ]]> Welcome Address of the Vice‐Chancellor of Rhodes University, Dr Saleem Badat, to First‐Year students https://commons.ru.ac.za/vital/access/manager/Repository/vital:7592 Thu 13 May 2021 07:35:27 SAST ]]> Interaction of terpenes and oxygenated terpenes with some drugs https://commons.ru.ac.za/vital/access/manager/Repository/vital:11332 Thu 13 May 2021 07:34:41 SAST ]]> Surface electrochemistry : structured electrode, synthesis, and characterization https://commons.ru.ac.za/vital/access/manager/Repository/vital:6567 Thu 13 May 2021 07:28:01 SAST ]]> On the optical and electrical design of low concentrator photovoltaic modules https://commons.ru.ac.za/vital/access/manager/Repository/vital:10543 Thu 13 May 2021 07:18:17 SAST ]]> Spatial variation in the macrobenthic assemblages of intertidal seagrass along the long axis of an estuary https://commons.ru.ac.za/vital/access/manager/Repository/vital:6870 Thu 13 May 2021 07:18:02 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 ]]> An investigation into the relationship between leadership and cognitive styles of supervisory employees in the automotive industry https://commons.ru.ac.za/vital/access/manager/Repository/vital:9403 Thu 13 May 2021 07:08:21 SAST ]]> Multi-instrument observations of ionospheric irregularities over South Africa https://commons.ru.ac.za/vital/access/manager/Repository/vital:5476 Thu 13 May 2021 06:18:50 SAST ]]> In vitro cytotoxic effects of selected Nigerian medicinal plant extracts on cancer cell lines https://commons.ru.ac.za/vital/access/manager/Repository/vital:10316 125 μg/ml. These results suggest that the extract may be selective for specific cell types. Bio-assay guided fractionation of the S. ellipticum ethanolic extract yielded two active fractions; chloroform and ethyl acetate. Two compounds isolated from the chloroform extract were screened against the three cancer cell lines and found to be inactive. Three compounds were isolated from the ethyl acetate fraction and revealed IC50 values < 62.5 and < 31 μg/ml against MCF-7. Unfortunately these two compounds soon lost activity before any further work could be done on them and work was continued with the crude extract.]]> Thu 13 May 2021 05:53:54 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 ]]> Conscientiousness as a moderator of the relationship between work family conflict and stress amongst South African Police Service (SAPS) members in Alice Police Station Eastern Cape, South Africa https://commons.ru.ac.za/vital/access/manager/Repository/vital:11551 Thu 13 May 2021 05:35:10 SAST ]]> Educators' experiences with the implementation of Grade 11 NCS English first additional language in selected schools in the Fort Beaufort Education District https://commons.ru.ac.za/vital/access/manager/Repository/vital:16190 Thu 13 May 2021 05:23:28 SAST ]]> Identifying expansive learning opportunities to foster a more sustainable food economy: a case study of Rhodes University dining halls https://commons.ru.ac.za/vital/access/manager/Repository/vital:1560 Thu 13 May 2021 04:54:54 SAST ]]> Illustrated medicines information for HIV/AIDS patients: influence on adherence,self-efficacy and health outcomes https://commons.ru.ac.za/vital/access/manager/Repository/vital:3863 Thu 13 May 2021 04:54:19 SAST ]]> Large scale retrenchments: an overview of Section 189 A https://commons.ru.ac.za/vital/access/manager/Repository/vital:10237 Thu 13 May 2021 04:34:16 SAST ]]> Investigation of the performance of photovoltaic systems https://commons.ru.ac.za/vital/access/manager/Repository/vital:10517 Thu 13 May 2021 04:19:00 SAST ]]> Creation of clay flameless burner for vaporizing an insect repellent containing pmd as an active ingredient https://commons.ru.ac.za/vital/access/manager/Repository/vital:10383 Thu 13 May 2021 04:14:47 SAST ]]> Strengths that contribute towards resilience in the early years of marriage https://commons.ru.ac.za/vital/access/manager/Repository/vital:9983 Thu 13 May 2021 04:14:10 SAST ]]> An investigation into the implementation of the life orientation curriculum in selected Fort Beaufort district high schools https://commons.ru.ac.za/vital/access/manager/Repository/vital:16174 Thu 13 May 2021 04:08:02 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 ]]> Environmental cues and sensory preferences directing the nesting process in loggerhead turtles, caretta caretta, nesting in Maputaland, South Africa https://commons.ru.ac.za/vital/access/manager/Repository/vital:10721 150 percent) in the high density nesting beaches compared to the low density nesting beaches within and among seasons however further investigations are required. Artificial light (range: 0.045–0.5 lux) is an active deterrent of female emergences while ambient light, even under extreme conditions such as lightning during electric storms (up to 8.2 lux), appears to have no observable influence on the spatial or temporal distributions of emergences. Social facilitation appears unlikely as a primary nest site selection factor for loggerheads. It may however, play a minor secondary role to preferred areas or hotspots. Sea-finding in post-nesting female loggerheads appears to be driven exclusively by visual cues such as the light horizon, with minimal to no influence from other cues (the sound of the breakers, slope or smell of the ocean) which solidify the visual system’s use in sea-finding. This research on the nest site selection of loggerheads and the sensory systems involved in this process has added valuable information to the limited pool of knowledge already present and has created a solid framework on which further investigations can be based. Future work in this field should focus on integrating a suite of sensory stimuli and cues to receive a greater understanding of the sensory systems used in nest site selection.]]> Thu 13 May 2021 03:34:54 SAST ]]> The relationship between conscientiousness, extraversion and leadership effectiveness among local government managers in Bisho and East London https://commons.ru.ac.za/vital/access/manager/Repository/vital:11556 Thu 13 May 2021 03:32:05 SAST ]]> Stakeholder participation in strategic planning processes at three colleges of education in Zimbabwe: towards the development of a participatory process in strategic planning https://commons.ru.ac.za/vital/access/manager/Repository/vital:16186 Thu 13 May 2021 02:57:25 SAST ]]> Foundation phase teachers’ knowledge, attitudes and practices towards inclusive classroom management: a case study of Mthatha district, Eastern Cape, South Africa https://commons.ru.ac.za/vital/access/manager/Repository/vital:18439 Thu 13 May 2021 02:57:16 SAST ]]> Using an intelligent self-service solution to support telecommunication service provisioning https://commons.ru.ac.za/vital/access/manager/Repository/vital:10484 Thu 13 May 2021 02:40:26 SAST ]]> Life-history and stock assessment of Clarias Gariepinus in the Okavango Delta, Botswana https://commons.ru.ac.za/vital/access/manager/Repository/vital:5297 Thu 13 May 2021 02:27:38 SAST ]]> The allelopathic potential of Arctotis Arctotoides (L.f.) O. Hoffm on some vegetables https://commons.ru.ac.za/vital/access/manager/Repository/vital:11306 Thu 13 May 2021 02:20:16 SAST ]]> Rhodes University Library Annual Report 2011 : acting Library Director’s Review https://commons.ru.ac.za/vital/access/manager/Repository/vital:7944 Thu 13 May 2021 01:50:29 SAST ]]> Factors affecting the retention of employees in auditing firms https://commons.ru.ac.za/vital/access/manager/Repository/vital:9408 Thu 13 May 2021 01:25:54 SAST ]]> Graviton n-point functions for UV-complete theories in Anti-de Sitter space https://commons.ru.ac.za/vital/access/manager/Repository/vital:6820 Thu 13 May 2021 01:25:54 SAST ]]> Barriers to inclusion of students with disabilities in sports: an assessment of special schools in the Amathole District of Eastern Cape, South Africa https://commons.ru.ac.za/vital/access/manager/Repository/vital:11542 Thu 13 May 2021 01:20:43 SAST ]]> A baseline for information security knowledge for end users https://commons.ru.ac.za/vital/access/manager/Repository/vital:9808 Thu 13 May 2021 01:13:23 SAST ]]> The evaluation of an instructional framework using the Van Hiele levels for learning and teaching geometry: a study in five rural senior secondary schools https://commons.ru.ac.za/vital/access/manager/Repository/vital:18470 Thu 13 May 2021 01:09:21 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. 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