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An analysis of the asset-based community development approach to early childhood development interventions in Grahamstown township pre-schools: a case study of the Centre for Social Development and Rhodes University Community Engagement

  • Authors: Maponya, Mapula
  • Date: 2018
  • Language: English
  • Type: text , Thesis , Masters , MSocSc
  • Identifier: http://hdl.handle.net/10962/63670 , vital:28469
  • Description: Is the glass half-full or half-empty? The purpose of this research was to show how Centre for Social Development and Rhodes University Community Engagement applies the Asset-Based Community Development approach in ECD interventions in Grahamstown township pre-schools. The subsidiary goals of the research were to highlight the challenges in the Early Childhood Development sector in Gahamstown, find out how the approach contributes to empowerment, participation and sustainability, and analyse the challenges that CSD and RUCE face in applying the approach and the relationship between the two organisations. The case study focused on the Centre for Social Development (CSD) and Rhodes University Community Engagement (RUCE). These two cases established projects that aim to improve Grahamstown township pre-schools. The apartheid system created a childhood of adversity for black children including inadequate access to social services, quality nutrition, health care and education. Black children in rural areas and townships faced tremendous obstacles in terms of access to quality ECD centres due to poverty and lack of adequate resources. In Grahamstown, various problems such as unemployment, poverty and restrictive apartheid regulations created a need for ECD interventions. Both organisations applied the Asset-Based Community Development approach to improve ECD in Grahamstown. The asset-based approach was created as a response to the impact of the needs-based approach. The needs- based approach focuses on deficiencies that exist in a community and uses outside experts and resources to address the deficiencies. The needs-based approach builds communities from the outside in, further disempowers community members and creates an environment of dependency. The asset-based approach on the other hand, was created to change the legacy of dependency by focusing on capacity building. A capacity-focused paradigm recognizes the gifts, skills and talents of community members. This approach is bottom- up beginning with what is available in the community and building on that. The approach aims to empower people, create a positive outlook on circumstances, and encourages organisations to work together with community members in community development projects. To achieve the main and subsidiary goals of the research, qualitative research was conducted using the case study method. In pursuing the objective of the thesis, I conducted research among ECD practitioners, student volunteers and staff from CSD and RUCE. Based on the findings it is clear that the application of the Asset-Based approach has a positive impact on ECD practitioners, children at the pre-schools and student volunteers. Through the application of the ABCD approach, ECD practitioners became proactive and took the driving seat in the development process. The ECD practitioners built strong relationships with community members and outside organisations. They have improved their skills and qualifications, and are on their way to restoring their agency, finding their voice and achieving independence. This has a positive impact on children at the pre-schools as they receive quality education and care. There are various challenges and contradictions in the application of the approach but the ECD practitioners view the communities in which they operate as half-full and not half-empty
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  • Date Issued: 2018

An investigation into how a guided learner leadership programme can foster authentic leadership in a boys’ boarding school environment

  • Authors: Cuyler, Craig
  • Date: 2018
  • Subjects: Educational leadership -- South Africa Boarding schools -- South Africa Boys -- South Africa
  • Language: English
  • Type: text , Thesis , Masters , MEd
  • Identifier: http://hdl.handle.net/10962/61756 , vital:28055
  • Description: This study is located within the field of Educational Leadership and Management and the research was undertaken in a boys’ private boarding school in Grahamstown, South Africa. Learner Leadership within the ELM field of study, has gained much interest in recent times and as the process of democratisation within schools continues to take place, it is important that research efforts be more focused in this area. The lack of learner voice initiatives within South African schools, in spite of policies being in place that encourage it, has created the impression that learner leadership is far more about rhetoric than actual practice. This appears to be the case in private education as well, owing to practices that are reliant on hierarchy and tradition to cement their position within these schools. It was with this in mind that a formative peer mentoring intervention was put in place in a boarding house at St Andrew’s College, a private boys’ school in Grahamstown, South Africa, with the object of developing authentic leadership in a boarding house context. This study was framed by Cultural Historical Activity Theory and sought to investigate how a guided learner leadership programme could foster authentic leadership in a boys’ boarding school context. The intervention consisted of three phases: 1) a pre-intervention questionnaire; 2) a Mentoring Course, during which Grade 12 learners were trained how to be mentors; and 3) a Mentoring Programme, during which Grade 12 learners were each allocated a Grade 8 learner to mentor during the course of the year. Data was collected during all three phases of the intervention and said data was obtained via questionnaires, interviews and from notes kept in an observation journal. The data was analysed inductively and later by using Cultural Historical Activity Theory, which acted as a lens through which data was interpreted. The findings reflected that learners responded well to the Mentoring Course and that they participated as active agents of change. It was during the Mentoring Programme, where contradictions became apparent and where the default to practices associated with hierarchy and tradition became evident. The Mentoring Programme did reflect some positive results, such as learners taking more ownership of the Programme and becoming critical of their own practice as mentors. This led to the further take-up of the Mentoring Programme in other boarding houses at St Andrew’s College after the intervention, and the course continues to grow and improve. My recommendations include that broader research be undertaken generally, to understand the role that tradition and hierarchy play, particularly in private schools, so that more authentic learner leadership can be put in place, and to conduct a longitudinal study to establish the success of the Mentoring Programme at St Andrew’s College specifically, over time.
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  • Date Issued: 2018

The subjective experience of resilience among divorced african women in Cradock, Eastern Cape, South Africa

  • Authors: Faxi, Nasiphi
  • Date: 2018
  • Subjects: Divorced women Divorce--Psychological aspects Divorced women--Psychology
  • Language: English
  • Type: Thesis , Masters , Psychology
  • Identifier: http://hdl.handle.net/10353/17371 , vital:40960
  • Description: The study aimed at investigating the resilience enhancement factors which promoted well-being among divorced African women in Cradock, the Eastern Cape, South Africa. A qualitative research design was used to investigate the factors which reinforced resilience and promoted well-being following divorce as studies have indicated the risk of not being able to cope following divorce trauma. Purposive sampling was used in recruiting twelve divorced participants (aged 25- 45) from a support group at a local church in Cradock. Data was collected by means of semistructured interviews following the permission of the church and the divorced women who gave their consent to conduct the study. Furthermore, ethical principles were adhered to, throughout the data collection process. Thirteen themes emerged in the study and they include; self-condemnation, self-blame and denial, loneliness depression, anger and embarrassment, stigma, personality change, sexual dissatisfaction, ambivalence, forgiveness, selfcontentment and self-compassion, personal growth, religious coping, social support and positive relations and resilience enhancement factors. Despite the achievement of the research objectives, the sample might not be the true representation of the population of women who experienced divorce. Also, the results might have been different if the study was quantitative in nature. Based on the findings, psychological support is needed for women who underwent divorce. Finally, churches should play a vital role in restoration of resilience among divorced women while the families and communities shift away from cultural beliefs of subjugating women.
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  • Date Issued: 2018

An analysis of quota conflicts in the fishing industry of the Western Cape: the plight of the small scale fisher sector from 1994 to the present day

  • Authors: Green, Michael Anthony
  • Date: 2017
  • Subjects: Small-scale fisheries -- South Africa Fishery policy -- South Africa
  • Language: English
  • Type: Thesis , Masters , MPhil
  • Identifier: http://hdl.handle.net/10948/18838 , vital:28736
  • Description: This treatise tracks the sequence of events that took place within the South African Fishing Industry post 1994, and focuses specifically on the plight of the small scale artisanal fisher sector, which operates in the in-shore and near-shore coastal waters of the Western and Southern Cape. In exploring this area of conflict, it focuses on the attempts of this sector to gain official recognition, sanction and inclusion in the country’s statutory framework. It is an intensive investigation into the activities of the various role players, being this fisher sector, various fishing bodies, the government and business, and through personal interactions with these stakeholders, a diverse set of perceptions and perspectives is detailed. Through the use of Participlan methodology, utilised in one-on-one interactions as well as focus group workshops, issues relating to the past, present and future are surfaced, leading to what the different entities believe to be a collective way forward. The dissertation concludes that there is a need for the three entities as defined, to communicate on a formalised basis in order to progress issues relating to the management, protection and sustainability of the in-shore and near-shore fish resources. It shows further that there is a desire and willingness across all these sectors to share ideas and thoughts in a structured environment to establish a common ground and to create a solution to resolve this conflict scenario. Specifically, the study illustrates that the small-scale artisanal fisher sector is a justifiable participant in the fishing industry, warranting recognition and inclusion as a distinct entity in the country’s Marine Living Resources Act.
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  • Date Issued: 2017

Appraisal of experimental performance and modelling of an on-farm dairy milk bulk cooler: Fort Hare Dairy Trust, South Africa

  • Authors: Mhundwa, Russel
  • Date: 2017
  • Subjects: Milk -- Cooling Milk -- Cooling -- Equipment and supplies Milk tanks -- Specifications
  • Language: English
  • Type: Thesis , Doctoral , DPhil
  • Identifier: http://hdl.handle.net/10353/4671 , vital:28487
  • Description: South Africa contributes approximately 0.5 percent to the total world milk demand and is the third largest producer of fresh cow milk in Africa after Sudan and Kenya. In comparison to any other enterprise, the cost of milk production is influenced by numerous factors, that in turn affect the profitability of the farm enterprise; however one of such factors is high electricity cost. In this regard, there is need for efficient operation of the milk processing plant at all stages and at the same time maximising on product quality and minimising on the cost of production including energy. At the dairy farm, milk handling mainly commences as the milk leaves the cow udder at 35°C–37°C and must be cooled rapidly to a storage temperature of 4°C in a bid to stop microbial activity. The cooling of the milk can be done directly by the bulk milk cooler (BMC) from 37°C to the required storage temperature of 4°C or it can be done successively through pre-cooling. The process of pre-cooling involves the use of a heat exchanger where in most instances the plate heat exchanger (PHE) is used as the pre-cooler (PC) thereby leading to energy savings in a dairy facility. Cooling of milk involves significant amount of energy and it could account for about 20 percent of the total energy consumed on a farm. The aim of the research was to develop mathematical models that could be used to predict the electrical energy performance and capture the cooling saving of an on-farm direct expansion bulk milk cooler (DXBMC) during the milk cooling process. Accordingly, data acquisition system (DAS) was designed and built to accurately measure the power consumption of the BMC, temperature of raw milk, room temperature, temperature of cold water, relative humidity and ambient temperature. The volume of milk produced per day was extracted from the daily records on the farm. In addition, the temperature sensors were connected to a four channel HOBO data loggers which were configured to log at every five-minutes interval. The results were analysed and the mathematical models were developed using MATLAB. The statistical Toolbox in MATLAB was used to rank the predictors according to their weight of importance using the ReliefF Algorithm test. The results showed that on average, the daily electrical energy consumed by the BMC at the two milking times was higher during the peak period (127.82 kWh and 93.86 kWh) than the off-peak period (48.31 kWh and 43.23 kWh). On average, the electricity used for cooling of milk on the dairy farm was 17.06 kWh/m3 of milk. The average monthly electricity used per cow on the farm was 8.03 kWh/cow which translated to an average of 0.26 kWh/cow/day The average specific energy consumption of the cooling system per litre of milk cooled was 0.02 kWh/L and was almost constant throughout the whole period of monitoring. Furthermore, the BMC was able to cool 57.33 L/kWh during the off-peak period which increased by 7.7 percent to 62.13 L/kWh during the peak period. Furthermore, mathematical models represented as multiple linear regression (MLR) models were built and developed using the experimental data. The developed mathematical models had good agreement with the experimental data as evidenced by the correlation coefficients of 0.922 and 0.8995 along with 0.935 and 0.930. The ReliefF Algorithm test revealed that the volume of milk was the principal contributor to the energy consumption of the BMC for both the morning (AM) and afternoon (PM) milking period. The Relative Prediction Error (RPE) was used to evaluate the suitability of the developed models. In this light, the AM off-peak model had RPE of 18.54 percent while the PM off-peak model had 14.42 percent. In addition, the AM peak and PM peak models had RPE of 19.23 percent and 18.95 percent respectively. This suggested that the MLR models for the off-peak and peak milking periods (both AM and PM) had acceptable prediction accuracy since the RPE values were between 10 percent and 20 percent. The findings from the experimental study showed that the coefficient of performance (COP) of the AM milking period was higher (2.20) than that of the PM milking period of the BMC (1.93). Increase in the milk volume led to an increase in the COP such that the peak period with higher milk volumes recorded a high COP increase of 12.61 percent and 19.81 percent for the AM and PM milking periods respectively.
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  • Date Issued: 2017

Perceptions of male teachers on under-representation of female teachers in high school management positions in the Queenstown Education District

  • Authors: Nyikanyika, Khaya
  • Date: 2017
  • Subjects: Women school administrators -- South Africa -- Eastern Cape Women teachers -- South Africa -- Eastern Cape School management and organization -- South Africa -- Eastern Cape
  • Language: English
  • Type: Thesis , Masters , MEd
  • Identifier: http://hdl.handle.net/10353/5036 , vital:29018
  • Description: The purpose of this study was to find out the perceptions of male teachers on the under-representation of female teachers in high school management position in the Queenstown Education District and to find the barriers that cause this perception to determine the possible solutions for these problems. To carry out this study descriptive method was employed. Participants of the study were 60 male teachers, selected by using stratified random sampling techniques. The data were collected by using questionnaire and interview. Both qualitative and quantitative data analysis methods were employed in order to turn up at the results. The findings of the study revealed that, despite the male teachers perceptions on the under-representation of female school managers in high school management positon has been changing, but not as expected still they believe that female teachers are reluctant to accept responsibilities of school management positions Some of the challenges which could hinder female teachers representation in high school management positions were for instance; pressure of home responsibilities, men dominance of management position, political appointment, unclear promotion procedures or informal recruitment selection and discrimination.
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  • Date Issued: 2017

Pharmacological evaluation of phragmanthera capitata (sprengel) balle, loranthaceae :a parasiticmistletoe growing on rubber trees

  • Authors: Ohikhena, Franklin Uangbaoje
  • Date: 2017
  • Subjects: Hevea Hevea -- Diseases and pests Rubber
  • Language: English
  • Type: Thesis , Doctoral , PhD
  • Identifier: http://hdl.handle.net/10353/8899 , vital:33937
  • Description: Rubber tree (Hevea brasiliensis Muell.) is the world’s major source of natural rubber and a major non-oil, agricultural export commodity in the producing countries in Africa. However, it is highly susceptible to specific mistletoes of the Loranthaceae family. Phragmanthera capitate (Sprengel) Balle is the major mistletoe parasitizing the rubber tree plantations in Africa and hence, alongside with other mistletoes, has attracted indiscriminate destruction from plantation owners. Indiscriminate destruction of plants could be as a result of ignorance of the importance or benefit(s) of the plants and this could lead to their extinction if not checked. Hence, there is the need for scientific documentation of plants and their uses because, from the pharmacological perception, the destruction of a plant could result in the permanent loss of a potential drug. Therefore, this study was aimed at documenting and evaluating the pharmacological potentials of P. capitata collected from rubber tree. Fresh leaves were gently rinsed with water and dried. Dried leaves were pulverised and kept at 4oC when not in use. Pulverised leaves were extracted with acetone, methanol, ethanol and water and concentrated to give the respective solvent crude extracts used in most of the assays. From the extraction, Methanol had the highest yield of 21.5percent, water had 10.8percent and acetone was 6.87percent while ethanol had the lowest yield of 4.3percent. Standard spectrophotometry assays on the extracts were used to quantify some major phytochemicals of pharmacological interest and also to determine the antioxidant potentials of the sample. The result revealed high amounts of phenols (175.53 ± 0.32 mg GAE/g to 218.62 ± 3.38 mg GAE/g), flavonoids (197.06 ± 3.80 mg QE/mg to 679.82 ± 6.26 mg QE/g) and proanthocyanidins (128.83 ± 1.69 mg CE/g to 645.68 ± 6.35 mg CE/g) with the acetone extract having the highest amount of the phytochemicals while the aqueous extract had the least. The results of the antioxidant assays revealed that the sample had high radical scavenging potentials with comparable inhibitory concentrations to standard antioxidant drugs. The proximate and mineral analysis on the pulverised sample showed that it is rich in carbohydrate with a composition of 57.73 ± 0.33 g/100 g. Protein, fat and fibre compositions were 12.50 ± 0.50 g/100 g, 3.34 ± 0.18 g/100 g and 11.66 ± 0.54 g/100g. The total energy composition was 310.97 ± 2.30 Kcal/100 g. The mineral composition revealed high potassium level of 1047.83 ± 34 mg/100g. Calcium (6.22.58 ± 0.01 mg/100g), magnesium (361.15 ± 0.01 mg/100 g) and phosphorous (115.40 ± 0.01 mg/100 g) were also present in appreciable amounts. The toxicity of the four extracts was assayed using brine shrimp. The LC50 in all the solvent extracts was greater than 1 mg/mL which according to Meyer’s index and other indexes signify “no toxicity” for crude plant extracts. Antimicrobial activity of the extracts was done using the minimal inhibitory concentration (MIC) assay against 10 bacteria (Enterococcus faecalis, Staphylococcus aureus, Bacillus subtilis, Bacillus cereus, Streptococcus pyogenes, Vibrio cholera, Klebsiella pneumonia, Pseudomonas aeruginosa, Salmonella typhi and Escherichia coli) and 4 fungi (Trichophyton mucoides, Trichophyton tonsurans, Candida albicans and Aspergillus niger) of human pathogenic strains. The MIC of the antibacterial assay ranged from 1.25 mg/mL to 5 mg/mL for the organic extracts while no activity was observed in the aqueous extract at the highest concentration tested. However, the aqueous extract had a great inhibitory activity on all four of the tested fungi with a MIC of ≤ 0.3125 mg/mL to 1.25 mg/mL while only two fungi (Trichophyton Tonsurans and Aspergillus niger) were susceptible to the organic extracts. The MIC of the TB causative pathogen, Mycobacterium tuberculosis (H37Rv) strain ranged from 25 μg/mL (acetone and aqueous extracts) to 50 μg/mL in the ethanol extract while it was > 50 μg/mL (highest concentration tested) in the methanol extract. This study revealed that the sample has the potential in phytotherapy against oxidative stresses (inflammations) caused by free radicals. It could also be a useful herb in combating diseases caused by pathogenic organisms. The high anti-Mycobacterium tuberculosis activity observed in this study suggests it could be a plant with high promise in the fight against tuberculosis. The toxicity evaluation signifies it is safe for further plant-based pharmaceutical explorations. This study also validated some reported ethnopharmacological uses of this plant and call for its protection from indiscriminate destruction in rubber plantations and other crop gardens/plantations in the world.
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  • Date Issued: 2017

Towards an alternative spatial-based management approach for estuarine fisheries in South Africa, with a case study from the Sundays Estuary

  • Authors: Kramer, Rachel
  • Date: 2016
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: http://hdl.handle.net/10962/1007 , vital:20012
  • Description: Estuaries are productive habitats and biologically important ecosystems which serve as juvenile nursery areas and feeding grounds for adults from a host of fish species. They are, however, threatened habitats, increasingly exposed to human disturbance and exploitation. The stocks of several South African estuary-dependent linefish species are now considered as either overexploited or collapsed. It is clear that their dependence on estuaries would warrant the inclusion of these ecosystems into marine reserve planning exercises. Since traditional management strategies (e.g. bag and size limit restrictions) have proven ineffective for estuarine fisheries, there is a need for alternative management measures, such as spatial and temporal restrictions, to ensure increased survival of juveniles and recovery of adult breeding populations. This thesis explored the potential for an ecosystem-based approach through the application of a rapid sustainability assessment technique, and a spatial-based management approach for an important fishery species, using conservation planning software. The Sundays Estuary, Eastern Cape, South Africa falls within the footprint of the Addo Elephant National Park, with a proposed expansion to include a marine protected area (MPA). However the estuaries resources were not considered during the planning of the proposed MPA. This study conducted an indicator-based sustainability assessment based on the principles of sustainable development. The results showed that present levels of exploitation, due to non-compliance and a lack of law enforcement are unsustainable. The sustainability of the Sundays Estuary had a low overall sustainability score of only 23.8%. With limited enforcement of estuarine fisheries regulations in South Africa, alternative management measures such as spatial regulations may provide a viable option forward. The sustainability of fishery resources depends on the comprehensive understanding of the fishery resource. Acoustic telemetry is a technique that has been widely adopted to infer habitat and area use patterns of fish species. The second component of this study made use of high resolution telemetry data collected on juvenile dusky kob Argyrosomus japonicus movements within the Sundays Estuary to conduct a scenario-based approach using Marxan conservation planning software. The best solution given by Marxan, in the form of a protected area for the conservation of juvenile A. japonicus in the Sundays Estuary was identified in the middle (starting 7km from the mouth) to the upper reaches (approximately 16km from the mouth) of the estuary, ultimately providing protection to tagged individuals for 61% of their time in the estuary. Although Marxan presented a best solution, the Sundays Estuary’s small size and shape, and minimal features used, was too simplistic to be included into a Marxan analysis. However, new methods and tools to analyse and plan spatial-based management options at this scale are currently being developed. Using the Sundays Estuary as a case study, a decision tree was then developed as a protocol to assist management address the challenges of effective estuarine management depending on the unique biological and socio-economic characteristics of individual estuaries in South Africa.
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  • Date Issued: 2016

Ni(II) and Pb(II) dithiocarbamate complexes as precursors for the synthesis of HDA-capped NiS and PbS nanoparticles

  • Authors: Chintso, Thobani
  • Date: 2015
  • Language: English
  • Type: Thesis , Masters , MSc (Chemistry)
  • Identifier: vital:11349 , http://hdl.handle.net/10353/d1020201
  • Description: Ni(II) and Pb(II) dithiocarbamate complexes were synthesized and characterized by elemental analysis, UV-Vis, FTIR and TGA and some of the Ni(II) complexes and one Pb(II) were further analyzed by 1H-NMR and 13C-NMR spectroscopy. Generally all the dithiocarbamate ligands are soluble in water while the complexes were soluble mostly in solvents such as chloroform, toluene, DMSO and DCM. Based on the elemental analysis, the dithiocarbamate complexes are formulated as four coordinate (tetrahedral or square planar) compounds. However, the FTIR showed that each of the dithiocarbamate ligands acted as bidentate ligand through two sulfur atoms. The TGA of the most complexes showed one major decomposition step to give respective metal sulfide above 200 oC. In this research project, dithiocarbamate complexes were used as single source precursor for the synthesis of metal sulfide nanoparticles. We studied the optical and structural properties of metal sulfide nanoparticles using UV-Vis, photoluminescence (PL), powder X-ray diffraction (XRD), energy dispersive X-ray (EDX), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The absorption spectra of the metal sulfide nanoparticles are blue shifted in respect to bulk material and they also showed broad emission. The XRD of the NiS nanoparticles were indexed to the cubic and rhombohedral phase, with crystallite sizes of 15 - 18 nm. The XRD of PbS nanoparticles were indexed to the face centered cubic and cubic rock salts, with the crystallite sizes 12 - 18 nm. The TEM images of the metal sulfide nanoparticles showed particles with spherical and rectangular shapes with crystallite sizes 4 - 35 nm.
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  • Date Issued: 2015

Nudus amor formam non amat artificem : representations of gender in elegiac discourse

  • Authors: Evans, Philippa A
  • Date: 2015
  • Subjects: Elegiac poetry , Gender identity in literature , Foucault, Michel, 1926-1984 , Butler, Judith, 1956- , Benjamin, Jessica , Mulvey, Laura , Tibullus , Propertius, Sextus , Sulpicia, active 1st century B.C. , Ovid, 43 B.C. - 17 or 18 A.D. Metamorphoses. Liber 10
  • Language: English
  • Type: Thesis , Masters , MA
  • Identifier: vital:3654 , http://hdl.handle.net/10962/d1017895
  • Description: This thesis explores the representation of gender, desire, and identity in elegiac discourse. It does so through the lens of post‐structural and psychoanalytic theory, referring to the works of Michel Foucault, Judith Butler, Jessica Benjamin, and Laura Mulvey in their analyses of power, gender performativity, and subjectivity. Within this thesis, these concepts are applied primarily to the works of Tibullus, Propertius, and Sulpicia, ultimately demonstrating that the three love elegists seek, in their poetry, to construct subversive discourses which destabilise the categories by which gender and identity were determined in Augustan Rome. This discussion is supplemented by the investigation of Ovid’s use of elegiac discourse in Book 10 of his Metamorphoses, and the way in which it both comments upon Augustan love elegy and demonstrates a number of parallels with its thematic content. This thesis focuses especially on the representation of power relations within elegiac discourse, the various levels on which such relations operate and, finally, the possibilities for the contestation of and resistance to power, in addition to the motivations that might lie behind the poet‐lover’s frequent attraction and submission to it.
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  • Date Issued: 2015

Spatial and temporal variations in trophic connectivity within an estuarine environment : benthic-pelagic and terrestrial-aquatic linkages via invertebrates and fishes

  • Authors: Bergamino Roman, Leandro
  • Date: 2015
  • Subjects: Estuarine ecology -- South Africa , Marine invertebrates -- South Africa -- Ecology
  • Language: English
  • Type: Thesis , Doctoral , PhD
  • Identifier: vital:5921 , http://hdl.handle.net/10962/d1017799
  • Description: Estuarine ecosystems are among the most biologically productive areas and they provide important ecosystem services such as erosion control, habitat and refugia for several species. These environments are characterized by the presence of a variety of organic matter sources due to their transitional position between rivers and the sea. The biotic compositions can undergo spatial and seasonal changes along the estuary due to the spatial and temporal fluctuations of environmental factors such as salinity, temperature and seston loads. Therefore, the different combinations of biotic and abiotic factors make each estuary a unique ecosystem. Because of this spatial and temporal complexity, the understanding of estuarine food web structure and which factors affect the trophic relationships within the ecosystem through space and time represent challenging tasks. Furthermore, estuaries are under an increasing number of anthropogenic perturbations because of the growing concentration of human populations in coastal areas. Knowledge of ecosystem structure and functioning is essential for effective conservation and management planning of coastal areas.In this dissertation, I combine the utilization of biological tracers to examine spatial and temporal variability in the food web structure within a small temperate and microtidal estuary located in South Africa. To this end, fatty acid profiles and stable isotope signatures were measured in several primary organic matter sources and consumers (including zooplankton, fishes and benthic invertebrates) during four consecutive seasons and in three different estuarine regions: upper, middle, and lower reaches. The three reaches had distinct habitat features of vegetation type and morphology, and in particular the lower reaches were colonized by the marsh grass Spartina maritima. Isotopic mixing models were used to estimate the relative contribution of each food source to the diets of invertebrates and fishes within the estuarine food web. The isotopic and fatty acid data showed similar results. In general, the lower reaches of the estuary were characterized by a higher deposition and assimilation by brachyuran crabs of carbon derived from marsh grass detritus, whiletowards the upper reaches a mixture of microphytobenthos and particulate organic matter (phytoplankton and detritus) was deposited and sustained the pelagic and benthic fauna. The highest deposition and assimilation of marsh grass detritus in the lower reaches of the estuary occurred during periods of low freshwater discharge (autumn and winter). In the upper reaches, microphytobenthos and suspended particulate organic matter were dominant basal food resources for the food web during all seasons. These results indicated that benthic consumers incorporated mainly local carbon sources from their local habitat.To clarify isotopic and fatty acid patterns I examined the trophic behaviour of the sesarmid crab Sesarma catenata through laboratory feeding experiments. Results from these experiments validated that decomposed leaves of riparian trees and the salt marsh plant S. maritima were the preferred food of the sesarmid crabs, potentially due to high bacterial loads. The remaining leaf material not assimilated by crabs, together with faecal material, are likely important subsidies for adjacent environments, hence representing an important energy pathway involving the microbial food chain. Furthermore, this dissertation showed the importance of mobile top predators as vectors energetically connecting distinct food chains within the estuary (i.e. littoral, benthic and pelagic). I concluded that a combination of physical (i.e. patterns of freshwater discharge and estuary morphology) and biological factors (i.e. organism feeding behaviour, mobility, primary productivity, the local vegetation type) influence the pattern of dominant primary organic matter sources, and therefore the food web structure along the estuarine environment. In particular, marsh grass detritus contributed substantially to the diets of estuarine fauna during periods of low freshwater discharge. Given the importance of the salt marsh habitat in providing trophic resources, it is important to preserve this environment to sustain the natural biota and ecosystem functioning.
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  • Date Issued: 2015

Transformation adaptation: developing a framework for donor organisation support of climate change adaptation in resource poor communities

  • Authors: Dada, Rehana
  • Date: 2015
  • Subjects: Climatic changes , Human beings -- Effect of climate on , Acclimatization
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: http://hdl.handle.net/10948/4158 , vital:20560
  • Description: Poor communities already face severe challenges in meeting their basic needs, whether because of poor income opportunities, inadequate service delivery, or degraded ecosystems that can no longer support the needs of people. Non profit organisations who provide support for development are also challenged by financial restrictions and social and political structures that prevent or limit project development. Climate change is understood to have the most severe impact on the most vulnerable communities and sectors of communities by reducing the availability and accessibility of basic resources such as water, food and energy, impacting severely on human health and wellbeing, and further reducing the capacity of ecosystems to support livelihoods. This will add a layer of significant new complications to the ability of poor communities to maintain or improve standards of living, and further challenge non profit organisations that support such communitiesAnticipatory adaptation to climate change can reduce some of the impacts of climate change, and also address some key development stresses. This thesis aims to provide a framework that is relevant for supporting adaptation to climate change within the context of resource poor communities in a developing country. Non profit organisations and donor agencies could support success and autonomy in adaptation processes by making provision for locally defined understanding of adaptation, and locally determined processes and programmes. This can be taken further into implementation of programming that addresses local short term development priorities alongside, or as part of long term adaptation work. The research followed a number of steps involving a multitude of techniques including literature review, interviews, a survey, consultation with an expert group, further consultation with stakeholders, and a final electronic review. Its outcome is a strategy that can be used to support climate change adaptation in resource poor communities. A definition for adaptation is proposed as an interpretation of adaptation that is relevant in this context. The intended end goal of adaptation as defined in this research is a better form of development that : supports a harmonious and respectful relationship between humans and their natural resource base; averts further destructive global change or at the very least prevents it from becoming unmanageable; and manages the impacts of past and ongoing destructive change so that there is lowest possible loss of natural, human, or cultural resources. The term transformative adaptation emerged from the research processes to describe adaptation to climate change that concurrently addresses development challenges, is grounded in community development aspirations, integrates programming work across multiple thematic areas and approaches, and addresses the causes of climate change within adaptation interventions. The following broad guidelines are used to inform programming within the framework of transformative adaptation : Human communities are faced with an enormous challenge resulting from global change and sociopolitical injustices; Well planned anticipatory adaptation can limit exposure and vulnerability to at least some of the projected impacts of climate change; Adaptation to climate change incorporates a reduction of vulnerability to underlying development stresses, alongside a reduction of vulnerability to specific climate change stresses; Existing development work forms the foundation for adaptation interventions, acknowledging the interdependence of social, natural and economic systems and the need to maintain their health; Adaptation decision making is community based, and acknowledges that resource poor communities are best placed to establish their own development needs, drive implementation of interventions in own spaces, and identify own limits to adaptation; Adaptation work incorporates mitigation objectives so that the causes of climate change are addressed as part of the strategy for coping with climate change; Adaptation programming acknowledges the strong interlinkages between, and integrates work across, the thematic areas of water security, food sovereignty, energy security, land security, human wellbeing and livelihood diversity; Adaptation uses a broad set of approaches that spans research, knowledge sharing, advocacy, and investment in technology and infrastructure; There is flexibility in project design and implementation to allow room for experimentation with new concepts, and also to change design as knowledge, understanding, and geophysical, biophysical and sociopolitical conditions change.
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  • Date Issued: 2015

Employees' perceptions of the South African Police Service's employee substance abuse prevention programme in Port Elizabeth

  • Authors: Smith, Janine
  • Date: 2014
  • Subjects: Employee assistance programs -- South Africa -- Port Elizabeth , Substance abuse -- Prevention
  • Language: English
  • Type: Thesis , Masters , MA
  • Identifier: vital:10009 , http://hdl.handle.net/10948/d1021183
  • Description: Substance abuse is a major social issue within the South African Police Service (SAPS). To address this issue, the SAPS implement an Employee Assistance Programme (EAP) as an intervention to address problems that may affect the work performance of employees. Despite the existence of this programme, substance abuse is still occurring and has a negative impact on work performance. This concern has fuelled the researcher to initiate this study. The goal of this study is to gain an understanding of Port Elizabeth SAPS employees’ perceptions regarding the effectiveness of the EAP substance abuse prevention programme. A qualitative research methodology, with a descriptive, exploratory and contextual research design was implemented. The researcher elected to use non-probability sampling, specifically, purposive sampling for this study. A sample of ten employees was chosen from an area demarcated for the purpose of the study, within the SAPS in Port Elizabeth. Data was collected through semi-structured, individual interviews. Interviews were continued until saturation point was reached. The interviews were analyzed according to the detailed guidelines set out by Tesch (in Creswell, 2003:192). The data was verified according to Guba’s principles (in De Vos, Strydom, Fouche & Delport, 2002:351). The researcher also employed the services of an independent coder in order to enhance the trustworthiness of the study. The perceptions of EAP as a substance abuse prevention programme, by employees of the SAPS in Port Elizabeth, have not been highlighted adequately within the South African context. The researcher’s study will hence contribute to the existing body of knowledge of the discipline.
  • Full Text:
  • Date Issued: 2014

An investigation into fraud and corruption risk management policies and procedures at institutions of higher learning

  • Authors: Makhooane, Stephen Malefane
  • Date: 2012
  • Subjects: Fraud -- South Africa -- Prevention Corruption -- South Africa -- Prevention Risk management -- South Africa -- Evaluation Education, Higher -- South Africa -- Finance
  • Language: English
  • Type: Thesis , Masters , MBA
  • Identifier: vital:777 , http://hdl.handle.net/10962/d1003898
  • Description: Fraud and corruption cost South Africa billions of rand yearly. Institutions of higher learning are no less vulnerable to fraud and corruption than other organisations, but are also subject to risks that are unique to academia. The Public Finance Management Act. No.1 of 1999 requires Public entities including the councils (university or college controlling body) of public institutions of higher learning to adopt enterprise risk management, which includes a fraud and corruption risk management policy and procedures. The function of the fraud and corruption policy is to provide an objective strategy to prevent, detect and investigate any possible irregularity in order to prevent further loss in line with Corporate Governance requirements. The anti-fraud and corruption strategy measures include setting the appropriate tone by management of the institution, being proactive (fraud risk assessments), and being reactive (reporting process, investigation and taking appropriate action). The actions include disciplinary action and criminal or civil proceedings in order to recover assets lost. The procedures address the implementation of the policy. This research focused on identifying the relevant issues that could be included in the formulation of fraud and corruption risk management policies and procedures for institutions of higher learning. The research was conducted using a qualitative methodology consisting of a document analysis and interviews. It was found that, out of eleven institutions of higher learning investigated only one institution meets the criteria set out in the framework developed in the research as an assessment tool. The other institutions involved in the research did not have fraud and corruption risk management policies or procedures and therefore did not comply with the Public Finance Management Act.
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  • Date Issued: 2012

The participation of teachers in the management and decision-making of three schools in the Kavango region of Namibia: a case study

  • Authors: Muronga, Michael Muduva
  • Date: 2012
  • Subjects: Educational leadership -- Namibia -- Kavango School management and organization -- Namibia -- Kavango Teachers -- Namibia -- Kavango Teacher participation in administration -- Namibia -- Kavango Teachers -- Training of -- Namibia -- Kavango
  • Language: English
  • Type: Thesis , Masters , MEd
  • Identifier: vital:1688 , http://hdl.handle.net/10962/d1003571
  • Description: The purpose of the research was to investigate stakeholders’ perceptions and experiences of teachers’ participation in school management and decision-making. Teachers’ involvement is a contested issue in schools. The goal was to find out to what extent and in what way teachers participate in school issues, as well as gain insight and understanding on the effects of participation of teachers in schools and how principals enhance democratic practice for quality education. The research was a case study conducted within the interpretive qualitative paradigm. I used document analysis, semi-structured interviews and observation to collect data for validity purposes and to counter subjectivity. The findings revealed at least a significant progress in terms of the Education Act, no 16 of 2001 requirement, of teachers’ participation in management and decision-making in schools, which has been an issue in the past. The study revealed that decisions are taken after consultation through consensus. The study revealed that the participation approach promotes ownership and commitment of staff to higher performance and common goals. The findings emerged that participative management has advantages for achieving higher performance through collaboration, consultation, and broader participation. The foremost findings include school principals’ roles in enhancing a collegial management approach by delegating, sharing leadership and responsibilities, and establishing organisation structures and committees involving teachers. Meetings serve as a platform for communication and sharing of information with stakeholders. However, there were also signs of tensions amid school management teams (SMTs) and teachers on participation in school matters in all aspects. Furthermore, its time-consuming nature, authoritarianism and accountability emerged as major challenges affecting the implementation of the participative approach. In addition to that, the study revealed that lack of knowledge and skills, unwillingness to involve others and to participate affects the implementation of the theory. As a result, the study recommends to the policies makers and the Ministry of Education to organize training for all stakeholders on participative management to empower them. Moreover, the study recommends to regional managers, inspectors, and advisory teachers (AT) to provide information to institutions responsible for teacher training to accommodate the theory into their curriculum. School principals should undergo training programmes or in-service training for participative leadership purposes to enhance their leadership capacity and to carry out their responsibilities effectively.
  • Full Text:
  • Date Issued: 2012

Being Indian, being MK: an exploration of the experiences and ethnic identities of Indian South African Umkhonto we Sizwe members

  • Authors: Lalla, Varsha
  • Date: 2011
  • Subjects: Umkhonto we Sizwe (South Africa) -- Research Political activists -- Research -- South Africa East Indians -- Politics and government -- Research -- South Africa Ethnicity -- Political aspects -- South Africa -- Research
  • Language: English
  • Type: Thesis , Masters , MA
  • Identifier: vital:2792 , http://hdl.handle.net/10962/d1003002
  • Description: Umkhonto we Sizwe (MK) was a military organization dominated by black Africans. Although it is not generally associated with Indian South Africans, who form a minority in the country, there were Indian MK members. This thesis explores the way in which Indian MK members reconciled aspects of their ethnic identity with their membership of MK. It explores the experiences of two generations of members: those born between 1929 and 1944 and those born between 1960 and 1969. In particular it looks at whether they experienced tensions between their ethnic and political identities. It explores what set these Indian South Africans apart from the rest of the Indian South African community that did not join MK. It also looks at what significant differences there were between different generations of Indian MK members. The research results show that the first generation MK members believe that their MK activities were „the highest form of passive resistance‟. An explanation for this way of referring to their activities could be that this was a way of reconciling tensions between their ethnic and political identities. The first generation was also very critical of the Indian SA community. This could be because they still feel part of this community despite having a strong political consciousness that is different from most of the community. It was found that some of the features that set Indian MK members apart from other Indian South Africans were that they were not raised in very religious households and occupied a fairly low rather than „middle man‟ economic position. In addition, members of the first generation of MK members were raised in comparatively multi-racial areas. Both generations made the decision to join MK because of Indian role models. There were some marked differences between the two generations of MK veterans. Most notably, the younger did not see their activities as in line with passive resistance and they also displayed more ambivalence about their ethnic identities.
  • Full Text:
  • Date Issued: 2011

How integrated are the African stock exchanges?: evidence from long term comovement, returns and volatility spillovers

  • Authors: Kambadza, Tinashe Harry Dumile
  • Date: 2011
  • Subjects: Stock exchanges -- Africa Money market -- Africa Globalization -- Economic aspects -- Africa International economic relations
  • Language: English
  • Type: Thesis , Masters , MCom
  • Identifier: vital:1017 , http://hdl.handle.net/10962/d1002752
  • Description: Stock market linkages have implications for portfolio diversification, asset pricing, monetary and regulatory policy as well as financial stability. This study examines the extent to which African stock markets are linked using daily data for the period 2000-2010. The study is divided into three main parts each focussing on the ways in which integration of the stock markets can be viewed. Firstly, we analyse the long run co-movement of the stock markets using both bivariate and multivariate Johansen (1988) and Johansen and Juselius (1990) cointegration approaches. Secondly, we analyse returns linkages using Factor analysis and the Vector Autoregressive (VAR) models. In the Factor Analysis model, we used two extraction methods, namely Principal Component Analysis and the Maximurn Likelihood technique. The VAR model was extended with impulse response, variance decomposition and block exogeniety. Thirdly, we analyse the behaviour of volatility and the volatility linkages among the stock markets. We initially analysed and modelled volatility in each stock market using the GARCH, EGARCH and GJR GARCH and then examined the long-term trend of the volatility. Conditional volatility series for each country were then estimated using the most appropriate model and were analysed using VAR, block exogeniety, impulse response and variance decomposition to determine the extent of their linkages. The findings of the study are as follows: Both the bivariate and multivariate models found slim evidence of cointegration amongst the stock markets, suggesting that there were opportunities for portfolio diversification for investors. In general, the financial crisis had very little impact on the long-run relationships of the stock markets. Results for the returns linkages showed that there were limited retums linkages with the exceptions of South African-Namibia and Egypt-Morocco to a lesser extent. South Africa was found to be the most endogenous, whilst Ghana and Nigeria were the most exogenous on the continent. We regards to volatility, we found that it was asymmetric and persistent across all the stock markets with long term trend of volatility showing that it significantly increased for most of the markets. Finally, there were limited volatility linkages, only between South Africa, Egypt and Namibia, implying that African stock markets are still largely segmented from each other. However, the linkages between South Africa and Egypt could have negative effects as they could lead to the spread of contagion effects during times of crises. Therefore, policymakers should consider revising and improving policies to enhance economic integration on the continent.
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  • Date Issued: 2011

An investigation of lower primary teachers' content knowledge of mathematics in Ohangwena region in Namibia

  • Authors: Haufiku, Amon
  • Date: 2009
  • Subjects: SACMEQ Namibia. Presidential Commission on Education, Culture and Training Mathematics -- Study and teaching (Elementary) -- Namibia Education -- Namibia
  • Language: English
  • Type: Thesis , Masters , MEd
  • Identifier: vital:1637 , http://hdl.handle.net/10962/d1003519
  • Description: The poor performance in mathematics of learners in schools in Namibia, especially in the grades where learners sit for the national examinations, has been a concern of everybody. Since independence, the Ministry of Education in collaboration with several donor agencies has been aware of the poor performance in mathematics in the country. Several international and local studies have been made in an effort to identify the problems that are hindering learners’ performance in mathematics in Namibia. The findings of some studies that were conducted in the country such as the Southern Africa Consortium Monitoring Education Quality (2004), the Presidential Commission on Education, Culture and Training (1999), and the Mathematics and Science Teachers Extension Program (2002) revealed that the inadequate proficiency of primary teachers in mathematics content could be responsible for learners’ poor performance in mathematics. This study, therefore, is aimed at investigating the mathematical proficiency of lower primary (LP) teachers in Namibia. The study used three instruments to collect data namely, a profile questionnaire – to collect teachers’ demographic data, a proficiency test – to test their proficiency level of mathematics using the content of Grade 4 and 5 learners’ mathematics syllabi and a semi-structured interview schedule – to get views about their own mathematics content knowledge, attitudes towards mathematics as well as problems that hinder effective teaching and learning of mathematics at LP phase. The study was conducted with 30 lower primary teachers from five primary and combined schools in the Ohangwena circuit of the Ohangwena region. The study found out that: (1) the mathematical proficiency of LP teachers is below the Grade 7 Mathematics content. Most teachers are not able to solve the content of mathematics at upper primary (UP) phase. (2) LP education is receiving very little support from the Ministry compared to other phases. (3) There are no workshops or training courses organised for LP teachers. They do not receive enough textbooks and materials, their classrooms are overcrowded and teachers cannot pay attention to individual learners. (4) There is a dire need for LP Head of Departments (HODs) who are specialised at LP; most HODs for LP at schools are not specialised in this area. When it comes to views about future content of mathematics that should be given to LP teachers in Namibia, respondents recommended that future LP teachers should have knowledge of mathematics up to at least Grade 10 but preferably up to Grade 12. They do not want to be restricted to LP mathematics, but would like to have a broader knowledge of mathematics content. This would make them more confident in solving their children’s problems in mathematics. Overall, participants recognised the value of mathematics and the role that it plays in society.
  • Full Text:
  • Date Issued: 2009

Investigating customer service excellence at Lakeside Spar

  • Authors: Meyer, Warren Carlo
  • Date: 2009
  • Subjects: Consumer satisfaction , Customer services , Customer relations management
  • Language: English
  • Type: Thesis , Masters , MBA
  • Identifier: vital:8700 , http://hdl.handle.net/10948/1016 , Consumer satisfaction , Customer services , Customer relations management
  • Description: Service delivery is critical to the customer’s perception of value and is core to the success of an organisation. Excellent customer service incorporates the critical aspects of: expedient service delivery; open and honest communication; individual, personalised service; engendering customer loyalty; problem-solving; under-promising and over-delivering; meeting and exceeding expectations; efficient use of infrastructure, systems and procedures to facilitate efficient operations and, in particular, effective use of knowledge management with a focus on customer lifecycle care (Kingstone, 2004, 2005; Zarbock, 2006). Best-practice organisations now use Customer Relationship Management (CRM) programmes that are customer-centric based in order to ensure excellent customer service delivery. Recently, organisations such as Tesco and Nordstrom have adopted customer-centric CRM successfully, providing concrete proof that this CRM model is sustainable and that it produces the highly lucrative win-win benefits which organisations seek (Beasty, 2005; Hallberg, 2001:19; Gratehouse, 2002; Rowe, 2002). 5 Glossary • Continuous improvement: an approach to improving performance which assumes more and smaller incremental improvement steps (Pycraft, Singh, Phihlela, Slack, Chambers, Harland, Harrison, & Johnston, 2002); • Connectivity: the ability to communicate with another system or piece of hardware or software, or with an internet site (Encarta World English Dictionary); • Customer-centric: the use of every touch-point to stimulate interest, close business, satisfy a need or demonstrate commitment to the customer relationship (Gianforte, 2005); • Customer expectations: the customer's perception of the quality of service (LeBoeuf, 1991) and value (Thompson, 2004); • Customer Experience Management: managing customer interactions to build brand equity and long-term profitability (Thompson, 2006a); • Customer lifecycle care: to ensure that every touch-point fulfils its value-potential, regardless of whether the interaction happens in marketing, sales or customer service (Gianforte, 2005); • Customer loyalty: customer’s attitudes and behaviour relating to their perception of value at every touch-point where they feel welcome, important and valued (Thompson, 2004); • Customer Relationship.
  • Full Text:
  • Date Issued: 2009

The relationship between innovation and leadership in First National Bank of South Africa

  • Authors: Ward, Philip Henry
  • Date: 2009
  • Subjects: First National Bank of Southern Africa Banks and banking -- South Africa Bank management -- South Africa Leadership -- South Africa Organizational change -- South Africa Organizational effectiveness -- South Africa Chief executive officers -- South Africa Technological innovations -- Economic aspects -- South Africa
  • Language: English
  • Type: Thesis , Masters , MBA
  • Identifier: vital:795 , http://hdl.handle.net/10962/d1004306
  • Description: This research investigates the relationship between innovation and leadership in First National Bank in South Africa. In an information age paradigm, innovation is a key driver of organisational success. Innovation allows an information age company to create a sustainable competitive advantage over its competitors. First National Bank (FNB) has recognised the need for innovation and measures the amount of innovation generated in each business unit on an annual basis. Leadership is a key factor influencing innovation in large, multi-segment organisations, particularly transformational leadership. Large multi-segment organisations often have multi-functional teams and transformational leadership of these teams more effectively promotes innovation. Large multi-segment organisations also often have complex decision making processes. Transformational leadership ensures optimal innovative decisions rather than adequate decisions are reached. FNB is a multi-segment organisation comprising ten business units each headed by a Chief Executive Officer (CEO). The relationship between the level of innovation being generated annually by each business unit and the leadership style of the business unit CEO formed the focus of this research. The Multifactor Leadership Questionnaire was used to gather information on the leadership style of each CEO's. Data on the level of innovation within each of these business units was supplied by First National Bank. Data was statistically analysed against the innovation generated by each business unit using correlation analysis. Most of the results testing the relationship between transformational and transactional leadership and innovation were found not to be significant. This contradicts the theory which suggests a positive relationship between transformational leadership and innovation.
  • Full Text:
  • Date Issued: 2009
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