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Age of squid Loligo reynaudii d’Orbigny, 1845, and its possible use to test effectiveness of the closed season in protecting this resource
- Mwanangombe, Collette Habani
- Authors: Mwanangombe, Collette Habani
- Date: 2020
- Subjects: Loliginidae -- Spawning -- South Africa , Loliginidae -- Age determination , Loligo fisheries -- South Africa , Fishery management -- South Africa , Otoliths , Loliginidae – Eggs -- Incubation , Loliginidae – Growth , Fish stock assessment -- South Africa , Recruitment (Population biology) -- South Africa , Loligo reynaudii d’Orbigny
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/144333 , vital:38336
- Description: This study presents age distributions representing populations of adult Loligo reynaudii, together with the results of spawning and commercial catches to assist in understanding the beneficial role of the closed season. The results were based on 791 samples collected during three closed seasons (November: 2003, 2004 and 2005) and out of closed season during April/May 2005. Age and predicted growth were examined by counting daily rings on statolith microstructures. The age in days after hatching ranged from 168 to 484 days (71-425 mm) in males and from 125 to 478 days (83-263 mm) in females. Average age at spawning was found to be 323 days in males and 316 days in females. Population estimates of growth rates were best described by a linear growth model which revealed that males grew faster than females in length as they grew older with growth rate ranging between 0.63 to 0.83 mm per day for males and between 0.22 to 0.32 mm per day for females. Back-calculated hatch dates and later egg-laying events for parental populations were determined. Results from back calculated egg laying dates (presented as percentage of frequency of all laying dates) indicated a highest total of 36%, 39% and 15% of eggs from all samples were laid during the closed season and nine days after the closed season during year 2003, 2004 and 2005 respectively. Monthly commercial total catches (2002-2005) showed an increase from November soon after the fishery resumed, up until the month of January. Daily catches were highest in November (up to 290 tonnes) relative to the daily catches observed in December and January in all the years. Results led to the conclusion that the closed season (25 October to 22 November) is beneficial for both the chokka resource and the fishery. This is because: a) there is time for enough spawning biomass to accumulate, which subsequently results in high catches (good fishery), in the current year, best immediately after season opens in November; b) there is a link in the results between egg laying dates in the period of closed season and immediately afterwards, and the magnitude of catches in last nine days of November.
- Full Text:
- Authors: Mwanangombe, Collette Habani
- Date: 2020
- Subjects: Loliginidae -- Spawning -- South Africa , Loliginidae -- Age determination , Loligo fisheries -- South Africa , Fishery management -- South Africa , Otoliths , Loliginidae – Eggs -- Incubation , Loliginidae – Growth , Fish stock assessment -- South Africa , Recruitment (Population biology) -- South Africa , Loligo reynaudii d’Orbigny
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/144333 , vital:38336
- Description: This study presents age distributions representing populations of adult Loligo reynaudii, together with the results of spawning and commercial catches to assist in understanding the beneficial role of the closed season. The results were based on 791 samples collected during three closed seasons (November: 2003, 2004 and 2005) and out of closed season during April/May 2005. Age and predicted growth were examined by counting daily rings on statolith microstructures. The age in days after hatching ranged from 168 to 484 days (71-425 mm) in males and from 125 to 478 days (83-263 mm) in females. Average age at spawning was found to be 323 days in males and 316 days in females. Population estimates of growth rates were best described by a linear growth model which revealed that males grew faster than females in length as they grew older with growth rate ranging between 0.63 to 0.83 mm per day for males and between 0.22 to 0.32 mm per day for females. Back-calculated hatch dates and later egg-laying events for parental populations were determined. Results from back calculated egg laying dates (presented as percentage of frequency of all laying dates) indicated a highest total of 36%, 39% and 15% of eggs from all samples were laid during the closed season and nine days after the closed season during year 2003, 2004 and 2005 respectively. Monthly commercial total catches (2002-2005) showed an increase from November soon after the fishery resumed, up until the month of January. Daily catches were highest in November (up to 290 tonnes) relative to the daily catches observed in December and January in all the years. Results led to the conclusion that the closed season (25 October to 22 November) is beneficial for both the chokka resource and the fishery. This is because: a) there is time for enough spawning biomass to accumulate, which subsequently results in high catches (good fishery), in the current year, best immediately after season opens in November; b) there is a link in the results between egg laying dates in the period of closed season and immediately afterwards, and the magnitude of catches in last nine days of November.
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Agents sans frontiers: cross-border aquatic weed biological control in the rivers of southern Mozambique
- Langa, Silvia D F, Hill, Martin P, Compton, Stephen G
- Authors: Langa, Silvia D F , Hill, Martin P , Compton, Stephen G
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/148998 , vital:38794 , DOI: 10.2989/16085914.2020.1749551
- Description: Biological control is an effective ways of controlling aquatic plants, especially in South Africa. Release of biological control agents has been limited to Mozambique, where water hyacinth (Eichhornia crassipes (Mart.) Solms-Laubach (Pontederiaceae)), water lettuce (Pistia stratiotes L. (Araceae)), red water ferns (Azolla spp. (Azollaceae)) and salvinia (Salvinia molesta DS Mitch. (Salviniaceae)) are significant weeds in the south of the country. In 2009, we assessed the status of these weeds in seven rivers across southern Mozambique and recorded whether any biocontrol agents were present.
- Full Text:
- Authors: Langa, Silvia D F , Hill, Martin P , Compton, Stephen G
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/148998 , vital:38794 , DOI: 10.2989/16085914.2020.1749551
- Description: Biological control is an effective ways of controlling aquatic plants, especially in South Africa. Release of biological control agents has been limited to Mozambique, where water hyacinth (Eichhornia crassipes (Mart.) Solms-Laubach (Pontederiaceae)), water lettuce (Pistia stratiotes L. (Araceae)), red water ferns (Azolla spp. (Azollaceae)) and salvinia (Salvinia molesta DS Mitch. (Salviniaceae)) are significant weeds in the south of the country. In 2009, we assessed the status of these weeds in seven rivers across southern Mozambique and recorded whether any biocontrol agents were present.
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An analysis of how visualisation capabilities in dynamic geometric software develop meaning-making of mathematical concepts in selected Grade 11 learners
- Authors: Mavani, Deepack Pravin
- Date: 2020
- Subjects: Mathematics -- Study and teaching (Secondary) -- South Africa , Mathematics -- Computer programs , Mathematics -- Study and teaching (Secondary) -- South Africa -- Case studies , Mathematics -- Study and teaching -- Activity programs , Educational technology , Visualization
- Language: English
- Type: text , Thesis , Dodctoral , PhD
- Identifier: http://hdl.handle.net/10962/143213 , vital:38211
- Description: Visualisation plays a central role in developing mathematical ideas because it can be used to make these ideas explicit and visible, and thus has the potential to advance understanding. This study centred around the GeoGebra Literacy Initiative Project (GLIP), a teacher development initiative in Mthatha that aimed to grow and develop appropriate Information and Communication Technology (ICT) skills in teachers, to harness the teaching and learning potential of GeoGebra. GeoGebra is a dynamic geometric software package that is very interactive and makes use of powerful features to create images which can be moved around the computer screen for mathematical exploration. This research project was located within GLIP and analysed how GeoGebra applets develop conceptual and procedural understanding in selected Grade 11 learners. One aspect of GLIP was for teachers to use GeoGebra applets that they had developed themselves and implemented in their classrooms in pre-determined cycles that were aligned to the curriculum. My study specifically focused on how the selected learners made use of these applets and explored how learning had taken place in terms of developing mathematical meaning-making. This interpretive research study was designed as a case study. The case was a cohort of selected Grade 11 learners who had been taught by GLIP teachers, and my unit of analysis was the learners’ interaction with the applets. A screen capturing software package was used to capture learners’ interactions with the GeoGebra. My data consisted mainly of recorded observations and interviews. An analytical framework derived from the works of Kilpatrick, Swafford, and Findell (2001) and Carter et al. (2009) guided and informed the data analysis of the learners’ activities with the GeoGebra. The theoretical orientation of this study was constructivist learning. An in-depth analysis and detailed descriptions of the participants’ interactions enabled me to gain a comprehensive understanding of their meaning-making processes in a technological classroom context. An analysis across the participants identified distinguishable patterns or differences in the development of the learners’ mathematical proficiency and making sense of mathematical ideas. The research argued that technology enabled visualisation was a powerful tool to not only enrich mathematically activities, but to also enrich conceptual and procedural understanding. The findings recognised that exploration of, or manipulation on mathematical objects in GeoGebra was a key activity in the participants’ meaning-making process. It also enabled learners to offer self-proclaimed theories
- Full Text:
- Authors: Mavani, Deepack Pravin
- Date: 2020
- Subjects: Mathematics -- Study and teaching (Secondary) -- South Africa , Mathematics -- Computer programs , Mathematics -- Study and teaching (Secondary) -- South Africa -- Case studies , Mathematics -- Study and teaching -- Activity programs , Educational technology , Visualization
- Language: English
- Type: text , Thesis , Dodctoral , PhD
- Identifier: http://hdl.handle.net/10962/143213 , vital:38211
- Description: Visualisation plays a central role in developing mathematical ideas because it can be used to make these ideas explicit and visible, and thus has the potential to advance understanding. This study centred around the GeoGebra Literacy Initiative Project (GLIP), a teacher development initiative in Mthatha that aimed to grow and develop appropriate Information and Communication Technology (ICT) skills in teachers, to harness the teaching and learning potential of GeoGebra. GeoGebra is a dynamic geometric software package that is very interactive and makes use of powerful features to create images which can be moved around the computer screen for mathematical exploration. This research project was located within GLIP and analysed how GeoGebra applets develop conceptual and procedural understanding in selected Grade 11 learners. One aspect of GLIP was for teachers to use GeoGebra applets that they had developed themselves and implemented in their classrooms in pre-determined cycles that were aligned to the curriculum. My study specifically focused on how the selected learners made use of these applets and explored how learning had taken place in terms of developing mathematical meaning-making. This interpretive research study was designed as a case study. The case was a cohort of selected Grade 11 learners who had been taught by GLIP teachers, and my unit of analysis was the learners’ interaction with the applets. A screen capturing software package was used to capture learners’ interactions with the GeoGebra. My data consisted mainly of recorded observations and interviews. An analytical framework derived from the works of Kilpatrick, Swafford, and Findell (2001) and Carter et al. (2009) guided and informed the data analysis of the learners’ activities with the GeoGebra. The theoretical orientation of this study was constructivist learning. An in-depth analysis and detailed descriptions of the participants’ interactions enabled me to gain a comprehensive understanding of their meaning-making processes in a technological classroom context. An analysis across the participants identified distinguishable patterns or differences in the development of the learners’ mathematical proficiency and making sense of mathematical ideas. The research argued that technology enabled visualisation was a powerful tool to not only enrich mathematically activities, but to also enrich conceptual and procedural understanding. The findings recognised that exploration of, or manipulation on mathematical objects in GeoGebra was a key activity in the participants’ meaning-making process. It also enabled learners to offer self-proclaimed theories
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An analysis of indicators disclosed in the integrated annual reports of selected South African retailers
- Authors: Blignaut, Anna Cornelia
- Date: 2020
- Subjects: Financial statements -- South Africa -- Case studies , Retail trade -- South Africa
- Language: English
- Type: text , Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10962/140859 , vital:37924
- Description: This study aimed to analyse the indicators disclosed in the Integrated Annual Reports (IARs) of selected South African retailers. This was firstly done by identifying the six capital and governance indicators retailers report on in order to analyse the commonalities and differences between them, secondly by identifying and assessing evidence of integrated thinking and lastly by making recommendations for optimal retail sector reporting. IARs from Pick n Pay Stores Ltd, Shoprite Holdings Ltd, Spar Group Ltd and Woolworths Holdings Ltd were analysed using content analysis. The results found noteworthy differences in IAR composition in terms of report length and the sections retailers devoted more or less of their report to. Governance and Remuneration indicator disclosure did not allow for broad comparison among all four retailers. In terms of indicator disclosure few indicators were disclosed by all retailers, whilst many were only disclosed by one retailer. Disclosures related to all six capitals were found, yet some indicators were disclosed excessively. Paradoxically, insufficient disclosure of indicators that are easily measurable and low levels of negative or unfavourable indicator disclosure was also apparent in this study. The comparability of indicators was influenced by the aggregation and disaggregation of indicators as well as the lack of consistency in the terminology used in IARs. Indicator disclosure also revealed several trends in the South African retail industry. This research identified the following six themes related to integrated thinking in the sample IARs. Retailers understand the connection between capitals, express consideration for multiple stakeholders and appreciate the context in which they operate, to some extent. Retailers were also found to have different interpretations of sustainability as part of their strategy and risk management whilst the completeness and consistency of information disclosed and retailers’ conceptualisation of value-added in IAR has not yet developed to the same extent across the retail industry. This study finally makes recommendations that may be used for optimal retail sector reporting with regards to the integrated reporting process as well as the integrated report itself. Addressing the former it is recommended that: integrated reporting be viewed as a means to build an internal understanding of their sustainability practices; integrated thinking be included as part of their strategic planning process; all capitals be considered in decision making; communication be established with others in the retail industry and that retailers engage with the IIRC on integrated reporting issues. In terms of the IAR itself, it is recommended that retailers ensure consistency in the terminology used and that the disaggregation of indicators is done in a consistent way. Retailers should include a balance of positive and negative disclosures as well as context-based indicators and seek assurance of the social, environmental and ethical information in their IARs. Finally, retailers need to set measurable sustainability performance targets and link them to specific performance indicators. The results of this study are not without limitations. The identification and categorisation of an indicator was largely based on the researcher’s own judgement in the content analysis process and can be highlighted as the main limitation of this research.
- Full Text:
- Authors: Blignaut, Anna Cornelia
- Date: 2020
- Subjects: Financial statements -- South Africa -- Case studies , Retail trade -- South Africa
- Language: English
- Type: text , Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10962/140859 , vital:37924
- Description: This study aimed to analyse the indicators disclosed in the Integrated Annual Reports (IARs) of selected South African retailers. This was firstly done by identifying the six capital and governance indicators retailers report on in order to analyse the commonalities and differences between them, secondly by identifying and assessing evidence of integrated thinking and lastly by making recommendations for optimal retail sector reporting. IARs from Pick n Pay Stores Ltd, Shoprite Holdings Ltd, Spar Group Ltd and Woolworths Holdings Ltd were analysed using content analysis. The results found noteworthy differences in IAR composition in terms of report length and the sections retailers devoted more or less of their report to. Governance and Remuneration indicator disclosure did not allow for broad comparison among all four retailers. In terms of indicator disclosure few indicators were disclosed by all retailers, whilst many were only disclosed by one retailer. Disclosures related to all six capitals were found, yet some indicators were disclosed excessively. Paradoxically, insufficient disclosure of indicators that are easily measurable and low levels of negative or unfavourable indicator disclosure was also apparent in this study. The comparability of indicators was influenced by the aggregation and disaggregation of indicators as well as the lack of consistency in the terminology used in IARs. Indicator disclosure also revealed several trends in the South African retail industry. This research identified the following six themes related to integrated thinking in the sample IARs. Retailers understand the connection between capitals, express consideration for multiple stakeholders and appreciate the context in which they operate, to some extent. Retailers were also found to have different interpretations of sustainability as part of their strategy and risk management whilst the completeness and consistency of information disclosed and retailers’ conceptualisation of value-added in IAR has not yet developed to the same extent across the retail industry. This study finally makes recommendations that may be used for optimal retail sector reporting with regards to the integrated reporting process as well as the integrated report itself. Addressing the former it is recommended that: integrated reporting be viewed as a means to build an internal understanding of their sustainability practices; integrated thinking be included as part of their strategic planning process; all capitals be considered in decision making; communication be established with others in the retail industry and that retailers engage with the IIRC on integrated reporting issues. In terms of the IAR itself, it is recommended that retailers ensure consistency in the terminology used and that the disaggregation of indicators is done in a consistent way. Retailers should include a balance of positive and negative disclosures as well as context-based indicators and seek assurance of the social, environmental and ethical information in their IARs. Finally, retailers need to set measurable sustainability performance targets and link them to specific performance indicators. The results of this study are not without limitations. The identification and categorisation of an indicator was largely based on the researcher’s own judgement in the content analysis process and can be highlighted as the main limitation of this research.
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An Analysis of Internet Background Radiation within an African IPv4 netblock
- Authors: Hendricks, Wadeegh
- Date: 2020
- Subjects: Computer networks -- Monitoring –- South Africa , Dark Web , Computer networks -- Security measures –- South Africa , Universities and Colleges -- Computer networks -- Security measures , Malware (Computer software) , TCP/IP (Computer network protocol)
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/103791 , vital:32298
- Description: The use of passive network sensors has in the past proven to be quite effective in monitoring and analysing the current state of traffic on a network. Internet traffic destined to a routable, yet unused address block is often referred to as Internet Background Radiation (IBR) and characterised as unsolicited. This unsolicited traffic is however quite valuable to researchers in that it allows them to study the traffic patterns in a covert manner. IBR is largely composed of network and port scanning traffic, backscatter packets from virus and malware activity and to a lesser extent, misconfiguration of network devices. This research answers the following two questions: (1) What is the current state of IBR within the context of a South African IP address space and (2) Can any anomalies be detected in the traffic, with specific reference to current global malware attacks such as Mirai and similar. Rhodes University operates five IPv4 passive network sensors, commonly known as network telescopes, each monitoring its own /24 IP address block. The oldest of these network telescopes has been collecting traffic for over a decade, with the newest being established in 2011. This research focuses on the in-depth analysis of the traffic captured by one telescope in the 155/8 range over a 12 month period, from January to December 2017. The traffic was analysed and classified according the protocol, TCP flag, source IP address, destination port, packet count and payload size. Apart from the normal network traffic graphs and tables, a geographic heatmap of source traffic was also created, based on the source IP address. Spikes and noticeable variances in traffic patterns were further investigated and evidence of Mirai like malware activity was observed. Network and port scanning were found to comprise the largest amount of traffic, accounting for over 90% of the total IBR. Various scanning techniques were identified, including low level passive scanning and much higher level active scanning.
- Full Text:
- Authors: Hendricks, Wadeegh
- Date: 2020
- Subjects: Computer networks -- Monitoring –- South Africa , Dark Web , Computer networks -- Security measures –- South Africa , Universities and Colleges -- Computer networks -- Security measures , Malware (Computer software) , TCP/IP (Computer network protocol)
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/103791 , vital:32298
- Description: The use of passive network sensors has in the past proven to be quite effective in monitoring and analysing the current state of traffic on a network. Internet traffic destined to a routable, yet unused address block is often referred to as Internet Background Radiation (IBR) and characterised as unsolicited. This unsolicited traffic is however quite valuable to researchers in that it allows them to study the traffic patterns in a covert manner. IBR is largely composed of network and port scanning traffic, backscatter packets from virus and malware activity and to a lesser extent, misconfiguration of network devices. This research answers the following two questions: (1) What is the current state of IBR within the context of a South African IP address space and (2) Can any anomalies be detected in the traffic, with specific reference to current global malware attacks such as Mirai and similar. Rhodes University operates five IPv4 passive network sensors, commonly known as network telescopes, each monitoring its own /24 IP address block. The oldest of these network telescopes has been collecting traffic for over a decade, with the newest being established in 2011. This research focuses on the in-depth analysis of the traffic captured by one telescope in the 155/8 range over a 12 month period, from January to December 2017. The traffic was analysed and classified according the protocol, TCP flag, source IP address, destination port, packet count and payload size. Apart from the normal network traffic graphs and tables, a geographic heatmap of source traffic was also created, based on the source IP address. Spikes and noticeable variances in traffic patterns were further investigated and evidence of Mirai like malware activity was observed. Network and port scanning were found to comprise the largest amount of traffic, accounting for over 90% of the total IBR. Various scanning techniques were identified, including low level passive scanning and much higher level active scanning.
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An analysis of purple truths: an alternative history of the school of journalism and media studies at Rhodes University. Exploring the possibilities of digital media for telling history through multiple voices
- Authors: Geldenhuys, Jesamé
- Date: 2020
- Subjects: Citizen journalism -- South Africa -- Makhanda , Social media and history -- South Africa -- Makhanda , Public history -- South Africa -- Makhanda , Digital media -- South Africa -- Makhanda , Digital humanities , User-generated content -- South Africa -- Makhanda , Social media -- Authorship , Rhodes University. School of Journalism and Media Studies -- History , Purple Truths
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/142293 , vital:38066
- Description: In theory, notions of public history and participatory journalism signal the ability of users to become active collaborators in the journalistic process with a degree of agency and authority over media content. Similarities in public history and participatory journalism are manifested in audience participation where the traditional and hegemonic boundaries between readers and journalists/historians are challenged. In this thesis, I present Purple Truths, a digital public history website about the School of Journalism and Media Studies at Rhodes University, that highlights multivocality and plurality. It allowed for democratisation of the historical narrative by inviting audience participation to historical inquiry on a digital platform. It was constructed as a case study for the thesis to investigate participatory processes. Using a five-dimensional model developed by Netzer et al. (2014) for the construction of participation on news websites, I identified five major participation features that revealed how and where participation was happening on the website. The features were mapped and tabulated according to Carpentier’s (2011) maximalist/minimalist dimensions of participation (access, interaction and ‘real’) to determine the degrees of participation in this study towards the aim of using the Purple Truths website to democratise the historical narrative. My findings suggest that despite a diversity of strategies, the study did have to rely on existing norms and practices of editorial decision-making, even in the context of digital media, and significant stages of the news-production process (selection/filtering) remained in the hands of researcher/editor. Maximalist participation, demonstrated as equalised power relations in decision-making, has a utopian dimension and is difficult to translate into practice. However, participation research requires further investigation in the digital humanities in South Africa to explore notions of democratisation of the narrative in academic and social praxis as sites of interdisciplinary democratic renewal
- Full Text:
- Authors: Geldenhuys, Jesamé
- Date: 2020
- Subjects: Citizen journalism -- South Africa -- Makhanda , Social media and history -- South Africa -- Makhanda , Public history -- South Africa -- Makhanda , Digital media -- South Africa -- Makhanda , Digital humanities , User-generated content -- South Africa -- Makhanda , Social media -- Authorship , Rhodes University. School of Journalism and Media Studies -- History , Purple Truths
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/142293 , vital:38066
- Description: In theory, notions of public history and participatory journalism signal the ability of users to become active collaborators in the journalistic process with a degree of agency and authority over media content. Similarities in public history and participatory journalism are manifested in audience participation where the traditional and hegemonic boundaries between readers and journalists/historians are challenged. In this thesis, I present Purple Truths, a digital public history website about the School of Journalism and Media Studies at Rhodes University, that highlights multivocality and plurality. It allowed for democratisation of the historical narrative by inviting audience participation to historical inquiry on a digital platform. It was constructed as a case study for the thesis to investigate participatory processes. Using a five-dimensional model developed by Netzer et al. (2014) for the construction of participation on news websites, I identified five major participation features that revealed how and where participation was happening on the website. The features were mapped and tabulated according to Carpentier’s (2011) maximalist/minimalist dimensions of participation (access, interaction and ‘real’) to determine the degrees of participation in this study towards the aim of using the Purple Truths website to democratise the historical narrative. My findings suggest that despite a diversity of strategies, the study did have to rely on existing norms and practices of editorial decision-making, even in the context of digital media, and significant stages of the news-production process (selection/filtering) remained in the hands of researcher/editor. Maximalist participation, demonstrated as equalised power relations in decision-making, has a utopian dimension and is difficult to translate into practice. However, participation research requires further investigation in the digital humanities in South Africa to explore notions of democratisation of the narrative in academic and social praxis as sites of interdisciplinary democratic renewal
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An Analysis of Self-Help Agricultural Projects in Rothe Village, Lesotho
- Authors: Phiri, Bokang
- Date: 2020
- Subjects: Community development -- Lesotho , Rural development -- Lesotho , Rural development projects - Lesotho -- Case studies , Agricultural development projects - Lesotho -- Case studies , Agricultural development projects - Lesotho -- Evaluation , Rural Self-Help Development Association
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/144242 , vital:38324
- Description: The study analysed self-help agricultural projects in Rothe, Lesotho to ascertain whether they improve the quality lives of Rothe villagers. As much as government driven self-help projects in Lesotho contribute to growing the rural economy, there is limited research that looks the sustainability of these interventions. Much of the literature in Lesotho reveal that self-help agricultural projects have focused on people being provided with food-for-work, or cash-for-work, these offered little benefits and temporary relief for hunger for beneficiaries. This study seeks to understand how self-help agricultural projects can sustainable improve the lives of Rothe community in Lesotho. The study drew from Sustainable Livelihoods Approach to understand self-help agricultural projects in Rothe, Lesotho. The study employed a qualitative case study approach, supplemented by purposive and snowball sampling methods and semi-structured interviews to select and interview self-help project beneficiaries and Field Officers of RSDA in Rothe Village. The findings revealed that self-help agricultural projects are alternative development interventions for improving the quality lives of poor rural villagers. These development interventions enable people to access livelihoods resources, assets, and social capitals that are important to improve, and sustain livelihoods. Additionally, they improve capabilities of the poor, and contribute to their overall development. The thesis concludes that these development interventions have a role to play in alleviating rural poverty lives as a way to ensure equitable distribution of resources. The study recommends that the government, people on the ground and RSDA should work together to strengthen people’s capabilities through self-help agricultural projects to promote welfare and well-being of rural people.
- Full Text:
- Authors: Phiri, Bokang
- Date: 2020
- Subjects: Community development -- Lesotho , Rural development -- Lesotho , Rural development projects - Lesotho -- Case studies , Agricultural development projects - Lesotho -- Case studies , Agricultural development projects - Lesotho -- Evaluation , Rural Self-Help Development Association
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/144242 , vital:38324
- Description: The study analysed self-help agricultural projects in Rothe, Lesotho to ascertain whether they improve the quality lives of Rothe villagers. As much as government driven self-help projects in Lesotho contribute to growing the rural economy, there is limited research that looks the sustainability of these interventions. Much of the literature in Lesotho reveal that self-help agricultural projects have focused on people being provided with food-for-work, or cash-for-work, these offered little benefits and temporary relief for hunger for beneficiaries. This study seeks to understand how self-help agricultural projects can sustainable improve the lives of Rothe community in Lesotho. The study drew from Sustainable Livelihoods Approach to understand self-help agricultural projects in Rothe, Lesotho. The study employed a qualitative case study approach, supplemented by purposive and snowball sampling methods and semi-structured interviews to select and interview self-help project beneficiaries and Field Officers of RSDA in Rothe Village. The findings revealed that self-help agricultural projects are alternative development interventions for improving the quality lives of poor rural villagers. These development interventions enable people to access livelihoods resources, assets, and social capitals that are important to improve, and sustain livelihoods. Additionally, they improve capabilities of the poor, and contribute to their overall development. The thesis concludes that these development interventions have a role to play in alleviating rural poverty lives as a way to ensure equitable distribution of resources. The study recommends that the government, people on the ground and RSDA should work together to strengthen people’s capabilities through self-help agricultural projects to promote welfare and well-being of rural people.
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An analysis of the availability of and access to credit from the formal financial sector and the performance of SMEs
- Authors: Asah, Francis Tangwo
- Date: 2020
- Subjects: Small business -- South Africa -- Finance , Microfinance -- South Africa , South Africa -- Economic conditions -- 1991-
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/115138 , vital:34081
- Description: As a developing nation, South Africa faces a high rate of poverty, high levels of inequality in terms of income and a high rate of unemployment. It is officially estimated that about 27.2% of the economically active population are unemployed. SMEs are expected to be an important vehicle to address the challenges of job creation, sustainable economic growth, equitable distribution of income and the overall stimulation of economic development. SMEs in South Africa constitute 99% of all businesses, contributing to employment, income inequality and poverty alleviation (Statistic South Africa, 2018). However, despite the remarkable contribution of SMEs to the economy of South Africa, the failure rate of SMEs (at 75%) is the highest of all the efficiency-driven economies sampled by the Global Entrepreneurship Monitor (GEM). The World Bank affirm that the availability of and access to credit from the formal financial sector is the primary cause of the high failure rate of SMEs. Contemporary literature advance that the future survival and performance of SMEs in South Africa is pegged onto the amount of financial capital available to address their capital needs. Thus, this study sought to analyse the availability of and access to credit from the formal financial sector and the performance of SMEs from the supply and demand-side. In order to achieve the objectives of the study, a sequential exploratory mixed method research design, located in the pragmatic research paradigm, was used in a two phased approach. The qualitative data collection and analysis in Phase 1 informed the quantitative data collection and analysis Phase 2. In Phase 1, in-depth face-to-face semi-structured interviews were conducted with 8 credit and 8 business managers representing the sampling unit of selected formal financial institutions. The qualitative data collected was analysed using the five-steps process of content analysis as illustrated by Terre Blanche et al. (2006:322-326). The main findings with regard to factors that impact on the willingness of the formal financial sector to provide credit to SMEs were collateral, annual business turnover, audited financial records, relationship with the bank, credit profile, nature of the business, economic climate, ethics, nationality, government policy, management team, valid Identity Document/permit, equity contribution, entrepreneurship education, product quality, and business intelligence. Assessing credit applications from SMEs, risk assessment, inspection of financial records, proper documentation and background checks were the different tasks performed by credit and business managers. In addition, the main challenges faced by the formal financial sector in assessing and approving credit in favour of SMEs included the following: lack of investment capital; lack of collateral; lack of proper financial records; poor managerial knowledge; poor business plan; lack of industrial knowledge; and poor legal and credit laws. Lastly, contrary to the notion that formal financial institutions are not interested in investing in SMEs, on average, 70% of SMEs that applied for credit received such credit. In Phase 2, a self-administered questionnaire was used to collect data from formal sector owner/managers of SMEs in the city of Johannesburg. Of the 702 questionnaires distributed, 300 were returned and useable. Data was analysed using the Statistical Package for the Social Sciences (version 24). A test for normality was performed using Shapiro–Wilks test. Reliability was tested using the Cronbach’s Alpha Coefficient. Exploratory factor analysis tested the validity of factors that prevent formal financial sector from granting credit to SMEs while Binary logistic regression was used to infer on the hypotheses. Spearman’s Rho correlation analysis was used to determine whether there was any significant relationship with factors that influence access to credit and SMEs performance. The main findings revealed that access to bank finance was the only challenge that showed a significant correlation with performance. In addition, the study revealed that the South African Identity Document and collateral were the most important factors considered when applying for credit from formal financial institutions. With regard to the reasons why formal financial institutions may refuse to grant credit to SMEs, it was revealed that there was no significant positive relationship between lack of business networking and access to credit from the formal financial sector to SMEs. Conversely, the study also revealed a significant positive relationship between collateral, business information, managerial competency, business intelligence, business ethics, entrepreneurship education, legal system and macro-economy and access to credit from the formal financial sector to SMEs. Thus, it was established that there is a significant positive relationship between access to credit from the formal financial sector and the performance of SMEs.
- Full Text:
- Authors: Asah, Francis Tangwo
- Date: 2020
- Subjects: Small business -- South Africa -- Finance , Microfinance -- South Africa , South Africa -- Economic conditions -- 1991-
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/115138 , vital:34081
- Description: As a developing nation, South Africa faces a high rate of poverty, high levels of inequality in terms of income and a high rate of unemployment. It is officially estimated that about 27.2% of the economically active population are unemployed. SMEs are expected to be an important vehicle to address the challenges of job creation, sustainable economic growth, equitable distribution of income and the overall stimulation of economic development. SMEs in South Africa constitute 99% of all businesses, contributing to employment, income inequality and poverty alleviation (Statistic South Africa, 2018). However, despite the remarkable contribution of SMEs to the economy of South Africa, the failure rate of SMEs (at 75%) is the highest of all the efficiency-driven economies sampled by the Global Entrepreneurship Monitor (GEM). The World Bank affirm that the availability of and access to credit from the formal financial sector is the primary cause of the high failure rate of SMEs. Contemporary literature advance that the future survival and performance of SMEs in South Africa is pegged onto the amount of financial capital available to address their capital needs. Thus, this study sought to analyse the availability of and access to credit from the formal financial sector and the performance of SMEs from the supply and demand-side. In order to achieve the objectives of the study, a sequential exploratory mixed method research design, located in the pragmatic research paradigm, was used in a two phased approach. The qualitative data collection and analysis in Phase 1 informed the quantitative data collection and analysis Phase 2. In Phase 1, in-depth face-to-face semi-structured interviews were conducted with 8 credit and 8 business managers representing the sampling unit of selected formal financial institutions. The qualitative data collected was analysed using the five-steps process of content analysis as illustrated by Terre Blanche et al. (2006:322-326). The main findings with regard to factors that impact on the willingness of the formal financial sector to provide credit to SMEs were collateral, annual business turnover, audited financial records, relationship with the bank, credit profile, nature of the business, economic climate, ethics, nationality, government policy, management team, valid Identity Document/permit, equity contribution, entrepreneurship education, product quality, and business intelligence. Assessing credit applications from SMEs, risk assessment, inspection of financial records, proper documentation and background checks were the different tasks performed by credit and business managers. In addition, the main challenges faced by the formal financial sector in assessing and approving credit in favour of SMEs included the following: lack of investment capital; lack of collateral; lack of proper financial records; poor managerial knowledge; poor business plan; lack of industrial knowledge; and poor legal and credit laws. Lastly, contrary to the notion that formal financial institutions are not interested in investing in SMEs, on average, 70% of SMEs that applied for credit received such credit. In Phase 2, a self-administered questionnaire was used to collect data from formal sector owner/managers of SMEs in the city of Johannesburg. Of the 702 questionnaires distributed, 300 were returned and useable. Data was analysed using the Statistical Package for the Social Sciences (version 24). A test for normality was performed using Shapiro–Wilks test. Reliability was tested using the Cronbach’s Alpha Coefficient. Exploratory factor analysis tested the validity of factors that prevent formal financial sector from granting credit to SMEs while Binary logistic regression was used to infer on the hypotheses. Spearman’s Rho correlation analysis was used to determine whether there was any significant relationship with factors that influence access to credit and SMEs performance. The main findings revealed that access to bank finance was the only challenge that showed a significant correlation with performance. In addition, the study revealed that the South African Identity Document and collateral were the most important factors considered when applying for credit from formal financial institutions. With regard to the reasons why formal financial institutions may refuse to grant credit to SMEs, it was revealed that there was no significant positive relationship between lack of business networking and access to credit from the formal financial sector to SMEs. Conversely, the study also revealed a significant positive relationship between collateral, business information, managerial competency, business intelligence, business ethics, entrepreneurship education, legal system and macro-economy and access to credit from the formal financial sector to SMEs. Thus, it was established that there is a significant positive relationship between access to credit from the formal financial sector and the performance of SMEs.
- Full Text:
An analysis of the public reporting of organisational resilience found within the integrated reports of a large state-owned enterprise
- Authors: Fleming, Linda
- Date: 2020
- Subjects: Eskom (Firm) , Organizational resilience , Eskom (Firm) -- Management
- Language: English
- Type: text , Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10962/141276 , vital:37958
- Description: This research explored whether there is any evidence of reporting of organisational resilience within the integrated reports of a large state-owned enterprise. The organisation chosen for the research was Eskom. The integrated annual reports of Eskom for 2016, 2017 and 2018 were examined. Direct and indirect evidence of organisational resilience was sought within the organisations integrated reports. The direct reporting of organisational resilience was located by using a PDF word search. A thematic content analysis was used to perform the search for indirect reporting of organisational resilience. Three main themes to represent organisational resilience that were identified beforehand were used to identify the indirect reporting of organisational resilience. Namely, transformability, adaptability and persistence. Sub themes of general and specified resilience were also identified during the research process. The literature review discusses the themes in detail, and also introduces communication and integrated reporting. Evidence of both direct and indirect organisational resilience was identified in all three years studied. Evidence of all the main themes and sub themes was found within the indirect reporting of organisational resilience. The main limitation of the study is that although evidence of reporting of organisational resilience was found, this evidence does not provide any indications of the level of organisational resilience within Eskom. A number of recommendations to Eskom management are made at the end of the research. What is interesting is that integrated reports are not designed to report on organisational resilience. However, the research showed clear evidence of reporting of organisational resilience within all three years researched. Potentially indicating that the integrated annual reports are a useful method of sharing information regarding organisational resilience with stakeholders. An additional benefit is that communication with stakeholders is simultaneously contributing to the enhancement of the organisations resilience.
- Full Text:
- Authors: Fleming, Linda
- Date: 2020
- Subjects: Eskom (Firm) , Organizational resilience , Eskom (Firm) -- Management
- Language: English
- Type: text , Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10962/141276 , vital:37958
- Description: This research explored whether there is any evidence of reporting of organisational resilience within the integrated reports of a large state-owned enterprise. The organisation chosen for the research was Eskom. The integrated annual reports of Eskom for 2016, 2017 and 2018 were examined. Direct and indirect evidence of organisational resilience was sought within the organisations integrated reports. The direct reporting of organisational resilience was located by using a PDF word search. A thematic content analysis was used to perform the search for indirect reporting of organisational resilience. Three main themes to represent organisational resilience that were identified beforehand were used to identify the indirect reporting of organisational resilience. Namely, transformability, adaptability and persistence. Sub themes of general and specified resilience were also identified during the research process. The literature review discusses the themes in detail, and also introduces communication and integrated reporting. Evidence of both direct and indirect organisational resilience was identified in all three years studied. Evidence of all the main themes and sub themes was found within the indirect reporting of organisational resilience. The main limitation of the study is that although evidence of reporting of organisational resilience was found, this evidence does not provide any indications of the level of organisational resilience within Eskom. A number of recommendations to Eskom management are made at the end of the research. What is interesting is that integrated reports are not designed to report on organisational resilience. However, the research showed clear evidence of reporting of organisational resilience within all three years researched. Potentially indicating that the integrated annual reports are a useful method of sharing information regarding organisational resilience with stakeholders. An additional benefit is that communication with stakeholders is simultaneously contributing to the enhancement of the organisations resilience.
- Full Text:
An appraisal and critique of land redistribution approaches in South Africa
- Authors: Phiri, M C S
- Date: 2020
- Subjects: University of the Western Cape. Institute for Poverty, Land and Agrarian Studies , Land reform -- South Africa , Land reform -- Law and legislation -- South Africa , Agriculture and state -- South Africa , Reconstruction and Development Programme (South Africa) , Land reform beneficiaries -- South Africa , South Africa -- Economic conditions -- 1991- , South Africa -- Social conditions -- 1994- , South Africa -- Economic policy , Land tenure -- Law and legislation -- South Africa , Blacks -- South Africa -- Economic conditions , Blacks -- South Africa -- Social conditions
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/149161 , vital:38810
- Description: This paper is in response to the PLAAS Land Conference held in February 2019 which aimed at discovering an alternative to how to solve the land question. The conference came at a time where land and agrarian reform re-emerged in South African socio-policy discussion. After twenty-five years of democracy the three land reform programmes have failed to restructure apartheid’s economic segregation, exclusionary land ownership patterns and to restore dignity to poor black South Africans. This study offers a detailed examination of the discourse of South African land reform, specifically the redistribution component with a focus on the land redistribution approaches presented at the PLAAS conference. Ultimately, the study puts forward a synthesized land redistribution approach as a hybrid solution to the land and agrarian crisis.
- Full Text:
- Authors: Phiri, M C S
- Date: 2020
- Subjects: University of the Western Cape. Institute for Poverty, Land and Agrarian Studies , Land reform -- South Africa , Land reform -- Law and legislation -- South Africa , Agriculture and state -- South Africa , Reconstruction and Development Programme (South Africa) , Land reform beneficiaries -- South Africa , South Africa -- Economic conditions -- 1991- , South Africa -- Social conditions -- 1994- , South Africa -- Economic policy , Land tenure -- Law and legislation -- South Africa , Blacks -- South Africa -- Economic conditions , Blacks -- South Africa -- Social conditions
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/149161 , vital:38810
- Description: This paper is in response to the PLAAS Land Conference held in February 2019 which aimed at discovering an alternative to how to solve the land question. The conference came at a time where land and agrarian reform re-emerged in South African socio-policy discussion. After twenty-five years of democracy the three land reform programmes have failed to restructure apartheid’s economic segregation, exclusionary land ownership patterns and to restore dignity to poor black South Africans. This study offers a detailed examination of the discourse of South African land reform, specifically the redistribution component with a focus on the land redistribution approaches presented at the PLAAS conference. Ultimately, the study puts forward a synthesized land redistribution approach as a hybrid solution to the land and agrarian crisis.
- Full Text:
An assessment of temporal changes in selective biological characteristics of chokka squid (Loligo reynaudii d’Órbigny, 1845)
- Authors: Mmethi, Mpho Audrey
- Date: 2020
- Subjects: Loligo reynaudii , Squids -- Morphology , Squids -- South Africa , Squid fisheries -- South Africa
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/143516 , vital:38253
- Description: The biological characteristics of chokka squid, Loligo reynaudii, sampled off the south coast of South Africa, were compared between 1994 and 2017 to ascertain any temporal changes using analysis of length frequency (LF) data over 15 years (1996–2017), and mantle length (ML) and total weight (TW) relationships over 9 years (1994–2016). To investigate feeding, two caecum colours were chosen for analysis (white: no food ingested, and yellow: six to seven hours after food ingestion). Other factors were kept constant throughout: similar sampling period of 60 days in spring-summer, similar depths and areas sampled, and identical maturity stage. Anecdotal evidence from fishers suggested that the length frequency and ML_TW relationship of chokka have changed over years, with possibilities to be linked to fishing activities and environmental conditions. Also, there is evidence in the published literature that both fisheries and environment may influence length distributions in populations of fish and cephalopods over time. The results from this study showed no significant differences between length frequencies over the time series. However, a significant decrease in length frequencies between 2014 and 2016 was noted when paired data was analysed by Anova (2014:2015, 2014:2016 and 2015:2016), which was initially noted in kernel density, Figure 2, hence an additional analysis was done. These changes were not linked to sea temperature (at 9 m, 14 m, 18 m, and 21 m depth strata), with not significant (P>0.05) results when temperature was analysed by t-test between 2002 and 2015. There was also a weak correlation between length frequency and the total squid catch in a given year (F Statistic (df = 1; 13) is 3.686 and 5.394 for males and females respectively, R² is 0.221 for males and 0.293 for females), but too weak to interpret, given the lack of other supporting data and the short time series. The ML_TW relationship showed no significant trends between the years for either sex. There was also no correlation between the ML_TW and total squid catch or temperature. A white caecum occurred significantly more often in males than in females (dof = 1; p < 0.05) from General Linear Model (GLM), indicating that the presence of non-feeding males in the spawning grounds may be linked to the behaviour of spawning squid.
- Full Text:
- Authors: Mmethi, Mpho Audrey
- Date: 2020
- Subjects: Loligo reynaudii , Squids -- Morphology , Squids -- South Africa , Squid fisheries -- South Africa
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/143516 , vital:38253
- Description: The biological characteristics of chokka squid, Loligo reynaudii, sampled off the south coast of South Africa, were compared between 1994 and 2017 to ascertain any temporal changes using analysis of length frequency (LF) data over 15 years (1996–2017), and mantle length (ML) and total weight (TW) relationships over 9 years (1994–2016). To investigate feeding, two caecum colours were chosen for analysis (white: no food ingested, and yellow: six to seven hours after food ingestion). Other factors were kept constant throughout: similar sampling period of 60 days in spring-summer, similar depths and areas sampled, and identical maturity stage. Anecdotal evidence from fishers suggested that the length frequency and ML_TW relationship of chokka have changed over years, with possibilities to be linked to fishing activities and environmental conditions. Also, there is evidence in the published literature that both fisheries and environment may influence length distributions in populations of fish and cephalopods over time. The results from this study showed no significant differences between length frequencies over the time series. However, a significant decrease in length frequencies between 2014 and 2016 was noted when paired data was analysed by Anova (2014:2015, 2014:2016 and 2015:2016), which was initially noted in kernel density, Figure 2, hence an additional analysis was done. These changes were not linked to sea temperature (at 9 m, 14 m, 18 m, and 21 m depth strata), with not significant (P>0.05) results when temperature was analysed by t-test between 2002 and 2015. There was also a weak correlation between length frequency and the total squid catch in a given year (F Statistic (df = 1; 13) is 3.686 and 5.394 for males and females respectively, R² is 0.221 for males and 0.293 for females), but too weak to interpret, given the lack of other supporting data and the short time series. The ML_TW relationship showed no significant trends between the years for either sex. There was also no correlation between the ML_TW and total squid catch or temperature. A white caecum occurred significantly more often in males than in females (dof = 1; p < 0.05) from General Linear Model (GLM), indicating that the presence of non-feeding males in the spawning grounds may be linked to the behaviour of spawning squid.
- Full Text:
An assessment of the effectiveness of the Crossways Farm Village constructed wetland in the treatment of domestic wastewater
- Authors: Silbernagl, Ryan
- Date: 2020
- Subjects: Crossways Farm Village FWS wetland (South Africa)-- Management , Sewage -- Purification -- South Africa , Wetland management -- South Africa
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/145011 , vital:38400
- Description: A mass balance study was conducted comparing inflowing and outflowing solute loads in order to calculate the treatment efficiency of a free water surface (FWS) constructed wetland used to treat domestic wastewater following primary treatment in an anaerobic reactor and oxidation in a rotating biological contractor. Water samples were taken at six locations down the length of the treatment system and analysed for nitrate nitrogen (NO3-N), nitrite nitrogen (NO2-N), ammonia nitrogen (NH4-N) and phosphorus as phosphate (PO4-P). Flow was determined using two V notch weirs combined with pressure transducers based on an empirically derived stage-discharge relationship. The concentration of each solute (g.m-3) multiplied by flow (m3.day-1) provides a measurement of the mass of each solute entering and leaving the treatment wetland such that the difference (inflow – outflow) indicates the nett storage in, or loss from, the wetland. In order to determine the water balance, apart from measuring surface inflows and outflows, rainfall was measured using an onsite rain gauge. Evapotranspirational losses were determined using the Penman-Monteith equation based on weather data collected at an onsite weather station. Other than water that entered the wetland via the primary water treatment works, surface inflows could be ignored as the wetland was sealed with a plastic liner, which also prevented groundwater inflow and outflow. Wetland outputs via surface outflow and evapotranspiration were then subtracted from wetland inputs to determine the water balance over the study period. Approximately 10.5% of water inputs into the hydrological mass balance calculation was not accounted for, which is considered to be accounted for by inaccuracy associated with the estimation of evapotranspiration and possibly by differences in water levels in the wetland at the start and end of the experiment. Total input, output and storage of NO3-N, NO2-N, NH4-N and PO4-P was calculated from April 2016 to September 2016 to give the treatment efficiency of the FWS wetland system. Results showed a 91.5% reduction in NO3-N, 76.6% reduction in NH4-N, and 88.8% reduction in PO4P between the inflow and outflow. Wetland sediment and vegetation (Typha capensis) samples were also analysed for nitrogen and phosphorus content to give an estimate of nutrient stocks/storage accumulated in plant tissues and sediments over the lifespan of the wetland. Standing stock calculations showed that a total of 450.1kg of nitrogen is stored in the wetlands, of which 69.3kg is stored in wetland sediments. Wetland phosphorus retention was found to be significantly lower with a total of 57.1kg of phosphorus, of which 77.4% was stored in sediments, indicating that wetland sediments comprise the largest store and therefore removal pathway of nutrients in the Crossways Farm Village FWS wetland.
- Full Text:
- Authors: Silbernagl, Ryan
- Date: 2020
- Subjects: Crossways Farm Village FWS wetland (South Africa)-- Management , Sewage -- Purification -- South Africa , Wetland management -- South Africa
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/145011 , vital:38400
- Description: A mass balance study was conducted comparing inflowing and outflowing solute loads in order to calculate the treatment efficiency of a free water surface (FWS) constructed wetland used to treat domestic wastewater following primary treatment in an anaerobic reactor and oxidation in a rotating biological contractor. Water samples were taken at six locations down the length of the treatment system and analysed for nitrate nitrogen (NO3-N), nitrite nitrogen (NO2-N), ammonia nitrogen (NH4-N) and phosphorus as phosphate (PO4-P). Flow was determined using two V notch weirs combined with pressure transducers based on an empirically derived stage-discharge relationship. The concentration of each solute (g.m-3) multiplied by flow (m3.day-1) provides a measurement of the mass of each solute entering and leaving the treatment wetland such that the difference (inflow – outflow) indicates the nett storage in, or loss from, the wetland. In order to determine the water balance, apart from measuring surface inflows and outflows, rainfall was measured using an onsite rain gauge. Evapotranspirational losses were determined using the Penman-Monteith equation based on weather data collected at an onsite weather station. Other than water that entered the wetland via the primary water treatment works, surface inflows could be ignored as the wetland was sealed with a plastic liner, which also prevented groundwater inflow and outflow. Wetland outputs via surface outflow and evapotranspiration were then subtracted from wetland inputs to determine the water balance over the study period. Approximately 10.5% of water inputs into the hydrological mass balance calculation was not accounted for, which is considered to be accounted for by inaccuracy associated with the estimation of evapotranspiration and possibly by differences in water levels in the wetland at the start and end of the experiment. Total input, output and storage of NO3-N, NO2-N, NH4-N and PO4-P was calculated from April 2016 to September 2016 to give the treatment efficiency of the FWS wetland system. Results showed a 91.5% reduction in NO3-N, 76.6% reduction in NH4-N, and 88.8% reduction in PO4P between the inflow and outflow. Wetland sediment and vegetation (Typha capensis) samples were also analysed for nitrogen and phosphorus content to give an estimate of nutrient stocks/storage accumulated in plant tissues and sediments over the lifespan of the wetland. Standing stock calculations showed that a total of 450.1kg of nitrogen is stored in the wetlands, of which 69.3kg is stored in wetland sediments. Wetland phosphorus retention was found to be significantly lower with a total of 57.1kg of phosphorus, of which 77.4% was stored in sediments, indicating that wetland sediments comprise the largest store and therefore removal pathway of nutrients in the Crossways Farm Village FWS wetland.
- Full Text:
An audience perception of pentecostal churches’ television programmes on star times and dstv in lagos, Nigeria
- Authors: Olaoye, Adewale Titus
- Date: 2020
- Subjects: Religious broadcasting -- Christianity , Television in religion , Mass media in religion
- Language: English
- Type: Thesis , Doctoral , PhD (Communication)
- Identifier: http://hdl.handle.net/10353/11418 , vital:39070
- Description: Pentecostal churches in Nigeria are leveraging traditional and new media technologies such as cable or digital satellite television, to broadcast services and programmes to their regular and a growing community of virtual worshippers. Critics of this type of religious outreach now known as televangelism have challenged its predominant, if not exclusive focus on miracle and prosperity message. Using the mixed-method research design involving focus group discussions, key informant interviews and a survey of 255 respondents, this study sought to ascertain Lagos audiences‘ perceptions of Pentecostal Television programmes on two satellite stations, Start Times and DSTV. The findings revealed that audience members perceive Pentecostal churches programme as primarily focused on converting the audience members to the Christian faith. The result revealed that miracle sessions are a common feature of televangelism. Respondents see the miracles as manipulations largely intended to woo and often, hoodwink audience members. The findings revealed that although some of the Pentecostal churches‘ programmes dwell more on the word of God compared to the mainline churches, the programmes and teachings, however, often tended to promote the leadership of the church and not the gospel of Christ. Generally, the study indicates the majority of the audience members are aware of and identify with the atrocities the Pentecostal Churches are accused of perpetrating through their TV programmes. The findings revealed poor awareness and knowledge about the role of the Nigeria Broadcasting Corporation (NBC). The results suggest participants do not believe the NBC is living up to its responsibilities. The findings of this study highlight the need for the NBC, the Christian Association of Nigeria (CAN) and Pentecostal Fellowship of Nigeria (PFN) to work together in formulating new regulations for controlling religious broadcast on television, Pentecostal TV broadcasts, in particular. This is the only way to safeguard vulnerable members of the audience from being manipulated and brainwashed.
- Full Text:
- Authors: Olaoye, Adewale Titus
- Date: 2020
- Subjects: Religious broadcasting -- Christianity , Television in religion , Mass media in religion
- Language: English
- Type: Thesis , Doctoral , PhD (Communication)
- Identifier: http://hdl.handle.net/10353/11418 , vital:39070
- Description: Pentecostal churches in Nigeria are leveraging traditional and new media technologies such as cable or digital satellite television, to broadcast services and programmes to their regular and a growing community of virtual worshippers. Critics of this type of religious outreach now known as televangelism have challenged its predominant, if not exclusive focus on miracle and prosperity message. Using the mixed-method research design involving focus group discussions, key informant interviews and a survey of 255 respondents, this study sought to ascertain Lagos audiences‘ perceptions of Pentecostal Television programmes on two satellite stations, Start Times and DSTV. The findings revealed that audience members perceive Pentecostal churches programme as primarily focused on converting the audience members to the Christian faith. The result revealed that miracle sessions are a common feature of televangelism. Respondents see the miracles as manipulations largely intended to woo and often, hoodwink audience members. The findings revealed that although some of the Pentecostal churches‘ programmes dwell more on the word of God compared to the mainline churches, the programmes and teachings, however, often tended to promote the leadership of the church and not the gospel of Christ. Generally, the study indicates the majority of the audience members are aware of and identify with the atrocities the Pentecostal Churches are accused of perpetrating through their TV programmes. The findings revealed poor awareness and knowledge about the role of the Nigeria Broadcasting Corporation (NBC). The results suggest participants do not believe the NBC is living up to its responsibilities. The findings of this study highlight the need for the NBC, the Christian Association of Nigeria (CAN) and Pentecostal Fellowship of Nigeria (PFN) to work together in formulating new regulations for controlling religious broadcast on television, Pentecostal TV broadcasts, in particular. This is the only way to safeguard vulnerable members of the audience from being manipulated and brainwashed.
- Full Text:
An effort to study the influence of tides on the longitudinal variation of vertical E× B drift over the African sector:
- Habyarimana, Valence, Habarulema, John Bosco, Mungufeni, Patrick, Uwamahoro, Jean Claude
- Authors: Habyarimana, Valence , Habarulema, John Bosco , Mungufeni, Patrick , Uwamahoro, Jean Claude
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/149026 , vital:38797 , https://doi.org/10.1016/j.jastp.2020.105338
- Description: Meteorological processes such as tides influence ionospheric variability through vertical coupling. For the first time, we have used data from Communication Navigation Outage and Forecasting System (C/NOFS) satellite from 2008–2015 to develop a Neural Network (NN) vertical E×B drift model over the African region, with inclusion of a proxy of tides as one of the inputs together with other physical and geophysical inputs. Two models (with and without tidal proxy input) were developed for both East and West African sectors. To derive the tidal proxy, we first calculate the 60-day running means per year which were subtracted from the actual vertical E×B drift measurements to obtain a set of residuals. The purpose of the subtraction was to remove long-term trends in vertical E×B drift that could potentially alias into tides.
- Full Text:
- Authors: Habyarimana, Valence , Habarulema, John Bosco , Mungufeni, Patrick , Uwamahoro, Jean Claude
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/149026 , vital:38797 , https://doi.org/10.1016/j.jastp.2020.105338
- Description: Meteorological processes such as tides influence ionospheric variability through vertical coupling. For the first time, we have used data from Communication Navigation Outage and Forecasting System (C/NOFS) satellite from 2008–2015 to develop a Neural Network (NN) vertical E×B drift model over the African region, with inclusion of a proxy of tides as one of the inputs together with other physical and geophysical inputs. Two models (with and without tidal proxy input) were developed for both East and West African sectors. To derive the tidal proxy, we first calculate the 60-day running means per year which were subtracted from the actual vertical E×B drift measurements to obtain a set of residuals. The purpose of the subtraction was to remove long-term trends in vertical E×B drift that could potentially alias into tides.
- Full Text:
An evaluation of social sustainability practices in an agri-based private company in the Eastern Cape
- Authors: Ferreira, Anton William
- Date: 2020
- Subjects: Social responsibility of business -- South Africa -- Eastern Cape , Food law and legislation -- South Africa -- Eastern Cape , Agriculture -- South Africa -- Eastern Cape , Private plot agriculture -- South Africa -- Eastern Cape , Employee rights -- South Africa -- Eastern Cape , Employee attitude surveys -- South Africa -- Eastern Cape , Communication in personnel management -- South Africa -- Eastern Cape
- Language: English
- Type: text , Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10962/122920 , vital:35371
- Description: The concept of sustainability has received considerable attention over the last few decades (Scoones, 2007). International awareness and demands for sustainable development have pushed the sustainable narrative into the forefront of developmental goals. The Brundtland Report of 1987, released by the United Nations entitled “Our Common Future” resulted in the classic modern definition of sustainable development. Agriculture is the primary source of food, shelter and fibre for the world and therefore has a leading role to play in the realisation of a sustainable future (Van Calker, Berentsen, Giesen and Huirne, 2005). Most sustainability research in agriculture has adopted a particular scale and dimension, leading to a host of definitions and methodologies for its assessment (Hayati, 2017, Janker and Mann, 2018, Latruffe, Diazabakana, Bockstaller, Desjeux and Finn, 2016, Smith and McDonald, 1998). Different approaches to assessing sustainable agriculture have developed in hand with various conceptual methods resulting in a lack of a common understanding of what sustainable agriculture means (Janker and Mann, 2018, Smith and McDonald, 1998). Agriculture has a leading role to play in sustainable development in the South African context; however, commercial agriculture in South Africa has been associated with human rights violations as well as unsustainable social practices and exploitation of employees (Mather, 2007, Muller, Vermeulen and Glasbergen, 2012b). This research was conducted in an agri-processing company that had expanded rapidly and been experiencing high absenteeism and increased conflict in the work environment in an attempt to identify how many of the chosen indicators of on-farm internal social sustainability were present in the company. The literature review helped to contextualise the subject of sustainability, agricultural sustainability, agricultural social sustainability and various methods for assessing agricultural sustainability. The subject of agriculture social sustainability within the South African context was expanded upon, and a framework was selected from the literature to develop the aims of this research. The Barrientos and Visser (2013) framework had been utilised in evaluating social sustainability in the South African agricultural context before, and when compared with relevant literature was deemed appropriate for this research. Through the use of a case study approach, thirty employees were interviewed on a one on one basis with close ended questions. Data was collected through the use of an odd-numbered Likert scale and simple descriptive statistics were used to answer questions regarding which socially sustainable on-farm internal indicators, identified in the literature and in the chosen framework, occurred in the company in question. The research looked to further critically evaluate the aspects of social sustainability that were implemented by the company and discuss the challenges relating to those identified indicators that were not implemented. Finally, the research made recommendations to improve the on-farm internal social sustainability of the company in question. The results of this research showed that out of the ten indicators of on-farm internal social sustainability that were relevant in the framework, five were present in the company in question and five were absent. Those indicators that were present were: contracts, wages, benefits, communication with management and adequate representation. Indicators that were not present included health and safety, employee wellbeing, the level of discrimination, the level of harsh treatment and employee decision making. It was apparent from the results that there are many challenges to implementing on-farm internal socially sustainable policies and practices in the company. Chief amongst these challenges was communication with employees concerning policies that have been implemented and the information that is available to the employees regarding these policies. The company at the centre of this research should ensure that policies are put in place that helps to convey information to employees and ensure that the policies are implemented efficiently and effectively. It was recommended that the company initiate a Human Resources division that would be responsible for communication and the implementation of policies to increase on-farm internal social sustainability. By increasing social sustainability in the workplace, the company should be able to increase its efficiencies and effectiveness in a competitive global market. The researcher is aware that the findings of this research are not generalizable and are specific to the company in question both in terms of scale and location. Further research is needed to determine the impact of individual indicators and the weighting of each indicator in a specific environment. Further research should be conducted in a company that is in a similar industry and has similar staff demographics to the company at the centre of this research, as the scale of measure will influence the results.
- Full Text:
- Authors: Ferreira, Anton William
- Date: 2020
- Subjects: Social responsibility of business -- South Africa -- Eastern Cape , Food law and legislation -- South Africa -- Eastern Cape , Agriculture -- South Africa -- Eastern Cape , Private plot agriculture -- South Africa -- Eastern Cape , Employee rights -- South Africa -- Eastern Cape , Employee attitude surveys -- South Africa -- Eastern Cape , Communication in personnel management -- South Africa -- Eastern Cape
- Language: English
- Type: text , Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10962/122920 , vital:35371
- Description: The concept of sustainability has received considerable attention over the last few decades (Scoones, 2007). International awareness and demands for sustainable development have pushed the sustainable narrative into the forefront of developmental goals. The Brundtland Report of 1987, released by the United Nations entitled “Our Common Future” resulted in the classic modern definition of sustainable development. Agriculture is the primary source of food, shelter and fibre for the world and therefore has a leading role to play in the realisation of a sustainable future (Van Calker, Berentsen, Giesen and Huirne, 2005). Most sustainability research in agriculture has adopted a particular scale and dimension, leading to a host of definitions and methodologies for its assessment (Hayati, 2017, Janker and Mann, 2018, Latruffe, Diazabakana, Bockstaller, Desjeux and Finn, 2016, Smith and McDonald, 1998). Different approaches to assessing sustainable agriculture have developed in hand with various conceptual methods resulting in a lack of a common understanding of what sustainable agriculture means (Janker and Mann, 2018, Smith and McDonald, 1998). Agriculture has a leading role to play in sustainable development in the South African context; however, commercial agriculture in South Africa has been associated with human rights violations as well as unsustainable social practices and exploitation of employees (Mather, 2007, Muller, Vermeulen and Glasbergen, 2012b). This research was conducted in an agri-processing company that had expanded rapidly and been experiencing high absenteeism and increased conflict in the work environment in an attempt to identify how many of the chosen indicators of on-farm internal social sustainability were present in the company. The literature review helped to contextualise the subject of sustainability, agricultural sustainability, agricultural social sustainability and various methods for assessing agricultural sustainability. The subject of agriculture social sustainability within the South African context was expanded upon, and a framework was selected from the literature to develop the aims of this research. The Barrientos and Visser (2013) framework had been utilised in evaluating social sustainability in the South African agricultural context before, and when compared with relevant literature was deemed appropriate for this research. Through the use of a case study approach, thirty employees were interviewed on a one on one basis with close ended questions. Data was collected through the use of an odd-numbered Likert scale and simple descriptive statistics were used to answer questions regarding which socially sustainable on-farm internal indicators, identified in the literature and in the chosen framework, occurred in the company in question. The research looked to further critically evaluate the aspects of social sustainability that were implemented by the company and discuss the challenges relating to those identified indicators that were not implemented. Finally, the research made recommendations to improve the on-farm internal social sustainability of the company in question. The results of this research showed that out of the ten indicators of on-farm internal social sustainability that were relevant in the framework, five were present in the company in question and five were absent. Those indicators that were present were: contracts, wages, benefits, communication with management and adequate representation. Indicators that were not present included health and safety, employee wellbeing, the level of discrimination, the level of harsh treatment and employee decision making. It was apparent from the results that there are many challenges to implementing on-farm internal socially sustainable policies and practices in the company. Chief amongst these challenges was communication with employees concerning policies that have been implemented and the information that is available to the employees regarding these policies. The company at the centre of this research should ensure that policies are put in place that helps to convey information to employees and ensure that the policies are implemented efficiently and effectively. It was recommended that the company initiate a Human Resources division that would be responsible for communication and the implementation of policies to increase on-farm internal social sustainability. By increasing social sustainability in the workplace, the company should be able to increase its efficiencies and effectiveness in a competitive global market. The researcher is aware that the findings of this research are not generalizable and are specific to the company in question both in terms of scale and location. Further research is needed to determine the impact of individual indicators and the weighting of each indicator in a specific environment. Further research should be conducted in a company that is in a similar industry and has similar staff demographics to the company at the centre of this research, as the scale of measure will influence the results.
- Full Text:
An exploration of formative assessment in primary school Natural Sciences classrooms
- Authors: Mgoqi, Nomvuyo
- Date: 2020
- Subjects: Education, Elementary -- South Africa , Science -- Study and teaching (Elementary) -- South Africa , Competency-based education -- South Africa , Curriculum-based education -- South Africa , Science teachers -- Training of -- South Africa , Educational tests and measurements -- South Africa
- Language: English
- Type: text , Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10962/124167 , vital:35572
- Description: This research investigated formative assessment in primary school Natural Sciences classrooms. The intention was to explore how teachers use formative assessment strategies to raise classroom standards and to foster higher order cognitive development of learners. My interest in the study was influenced by constant poor achievement of South African learners in literacy and specifically in scientific literacy reported in various international and national benchmark tests. Vygotskian theory of the zone of proximal development was used to provide critical insight into formative assessment processes. Further theoretical lenses included Wylie and Lyons’ (2013) ‘Ten dimensions of formative assessment’ work for reviewing formative assessment strategies and Dalton’s (2003) ‘New Bloom’s Taxonomy’ for insight into cognitive development in classroom contexts. Influenced by the above mentioned reports, a qualitative case study of seven primary school teachers in Cape Town, Western Cape, South Africa was conducted. Underpinned by an interpretive paradigm and driven by the desire to achieve an in-depth understanding of the case under study, three techniques for data generation were employed. The first technique was semi-structured interviews. The second technique of data generation was through lesson observations including pre-lesson discussions and stimulated recall interviews. Observations were conducted to record teachers’ formative assessment practices and report how they use the formative assessment strategies to support student learning or ‘shifting’ their zone of proximal development through formative assessment practices. The third technique was document analysis of lesson plans, teaching and learning activities and assessment tasks worksheets of the two teachers observed. Documents were analysed to gain insights and understanding of how teachers prepared teaching and learning activities and assessments to support learner cognitive development. There were four data analysis phases. Phase I was an analysis of the semi-structured interviews. These were analysed to get a sense of teachers’ perspectives, experiences and challenges regarding formative assessment practices. In order to get a better sense of the quality of formative assessment, classroom observations were analysed using the lens of Wylie and Lyon (2013). This was analysis Phase II. Phase III made use of Dalton’s ‘New Bloom’s Taxonomy’ to gain insight into the role of formative assessment in supporting low, medium and higher order cognitive development. This phase was the document analysis and involved a review of the lesson plans, teaching and learning activities and formative assessment tasks. Phase IV further explored teachers’ experiences regarding implementation of formative assessment. Phase IV is different from Phase I in that it was not only looking at what teachers highlighted as challenges but also at challenges experienced during the lesson observations. This analysis was done across data sources, that is, semi-structured interviews, lesson observations and stimulated recall interviews. Findings from the first set of data showed that teachers viewed formative assessment implementation as a useful practice in the teaching and learning process. However, the diverse views showed lack of clarity of the purpose and definition of formative assessment. The results also revealed some effective attributes of formative assessment were observed during lesson observations at the time of the investigation. However, the results showed that clarifying goals, feedback and classroom collaborations were weakly implemented. These seem to be strategic entry points to begin strengthening the effective implementation of formative assessment classrooms. Supporting teachers regarding use of formative assessment techniques could be one of the means of helping teachers in collecting evidence of student learning. The teachers highlighted some challenges they experienced when implementing formative assessments. Hindrances to implementing effective formative assessment practice reflected structural, technical and attitudinal challenges. The study recommends that since formative assessment is a fundamental part of teaching and learning, teachers need more support and time for reflection to improve their implementation of effective formative assessment. The study also revealed that teachers need enough time to be able to implement effective formative assessment practices. This requires curriculum developers and administrators to revisit curriculum coverage in terms of breadth and depth and to give more time for the implementation of effective formative assessment practices.
- Full Text:
- Authors: Mgoqi, Nomvuyo
- Date: 2020
- Subjects: Education, Elementary -- South Africa , Science -- Study and teaching (Elementary) -- South Africa , Competency-based education -- South Africa , Curriculum-based education -- South Africa , Science teachers -- Training of -- South Africa , Educational tests and measurements -- South Africa
- Language: English
- Type: text , Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10962/124167 , vital:35572
- Description: This research investigated formative assessment in primary school Natural Sciences classrooms. The intention was to explore how teachers use formative assessment strategies to raise classroom standards and to foster higher order cognitive development of learners. My interest in the study was influenced by constant poor achievement of South African learners in literacy and specifically in scientific literacy reported in various international and national benchmark tests. Vygotskian theory of the zone of proximal development was used to provide critical insight into formative assessment processes. Further theoretical lenses included Wylie and Lyons’ (2013) ‘Ten dimensions of formative assessment’ work for reviewing formative assessment strategies and Dalton’s (2003) ‘New Bloom’s Taxonomy’ for insight into cognitive development in classroom contexts. Influenced by the above mentioned reports, a qualitative case study of seven primary school teachers in Cape Town, Western Cape, South Africa was conducted. Underpinned by an interpretive paradigm and driven by the desire to achieve an in-depth understanding of the case under study, three techniques for data generation were employed. The first technique was semi-structured interviews. The second technique of data generation was through lesson observations including pre-lesson discussions and stimulated recall interviews. Observations were conducted to record teachers’ formative assessment practices and report how they use the formative assessment strategies to support student learning or ‘shifting’ their zone of proximal development through formative assessment practices. The third technique was document analysis of lesson plans, teaching and learning activities and assessment tasks worksheets of the two teachers observed. Documents were analysed to gain insights and understanding of how teachers prepared teaching and learning activities and assessments to support learner cognitive development. There were four data analysis phases. Phase I was an analysis of the semi-structured interviews. These were analysed to get a sense of teachers’ perspectives, experiences and challenges regarding formative assessment practices. In order to get a better sense of the quality of formative assessment, classroom observations were analysed using the lens of Wylie and Lyon (2013). This was analysis Phase II. Phase III made use of Dalton’s ‘New Bloom’s Taxonomy’ to gain insight into the role of formative assessment in supporting low, medium and higher order cognitive development. This phase was the document analysis and involved a review of the lesson plans, teaching and learning activities and formative assessment tasks. Phase IV further explored teachers’ experiences regarding implementation of formative assessment. Phase IV is different from Phase I in that it was not only looking at what teachers highlighted as challenges but also at challenges experienced during the lesson observations. This analysis was done across data sources, that is, semi-structured interviews, lesson observations and stimulated recall interviews. Findings from the first set of data showed that teachers viewed formative assessment implementation as a useful practice in the teaching and learning process. However, the diverse views showed lack of clarity of the purpose and definition of formative assessment. The results also revealed some effective attributes of formative assessment were observed during lesson observations at the time of the investigation. However, the results showed that clarifying goals, feedback and classroom collaborations were weakly implemented. These seem to be strategic entry points to begin strengthening the effective implementation of formative assessment classrooms. Supporting teachers regarding use of formative assessment techniques could be one of the means of helping teachers in collecting evidence of student learning. The teachers highlighted some challenges they experienced when implementing formative assessments. Hindrances to implementing effective formative assessment practice reflected structural, technical and attitudinal challenges. The study recommends that since formative assessment is a fundamental part of teaching and learning, teachers need more support and time for reflection to improve their implementation of effective formative assessment. The study also revealed that teachers need enough time to be able to implement effective formative assessment practices. This requires curriculum developers and administrators to revisit curriculum coverage in terms of breadth and depth and to give more time for the implementation of effective formative assessment practices.
- Full Text:
An exploration of how Grade 3 Foundation Phase teachers develop basic scientific process skills using an inquiry-based approach in their classrooms
- Authors: Nhase, Zukiswa
- Date: 2020
- Subjects: Elementary school teaching-- South Africa , Elementary school teachers -- South Africa , Elementary school teachers -- In-service training -- South Africa , Science -- Study and teaching (Elementary) -- South Africa , Learning, Psychology of , Cognition in children , Inquiry-based learning -- South Africa , Active learning -- South Africa , Pedagogical content knowledge -- South Africa , Educational change -- South Africa , Socio-cultural theory
- Language: English
- Type: Thesis , Masters , PhD
- Identifier: http://hdl.handle.net/10962/145181 , vital:38416
- Description: Some studies have looked at Foundation Phase teachers’ perspectives on the teaching of science in this phase. Such studies have highlighted various challenges on the teaching of science in the Foundation Phase. They pointed out issues such as large class numbers, lack of resources and lack of science knowledge from Foundation Phase teachers. However, none of these studies have looked at how Foundation Phase teachers are using an Inquiry-Based Approach in their classrooms instead few studies have looked at the Foundation Phase teachers’ perspectives about scientific inquiry in this phase. Even though many scholars have presented several challenges to the teaching of science both at secondary and primary level, the argument is strongly made that Foundation Phase learners should be exposed to the learning of science. Generally, children at the Foundation Phase level naturally enjoy observing and thinking about nature; exposing learners to science develops positive attitudes towards science; the use of scientifically informed language at an early age influences the eventual development of scientific concepts; children can understand scientific concepts and reason scientifically; and science is an efficient means for developing scientific thinking. It is within these arguments and discussions that this interpretive case study research sought to explore the Pedagogical Content Knowledge of four Foundation Phase teachers in developing the Scientific Process Skills using an Inquiry-Based Approach in their classrooms and subsequently, the significance of this research study. The socio-cultural theory, Topic Specific Pedagogical Content Knowledge, Zaretskii’s six conditions for development during mediation and the principles of an Inquiry-Based Approach were used as analytical lenses in this research. To use an Inquiry-Based Approach, generally teachers have to understand its principles and know how to develop basic Scientific Process Skills while teaching the science content. In the Foundation Phase, the Natural Sciences component or content is embedded in the Beginning Knowledge study area of the Life Skills subject and this can create difficulties for teachers to even recognise the scientific concepts in the Life Skills. The four IsiXhosa female teachers used the home language of learners as the language of instruction to implement an Inquiry-Based Approach in their classrooms. Data were generated in four phases. Phase one was baseline data through document analysis. Three of the phases were directed by the research question asked. Data were generated using questionnaires, interviews (semi-structured and stimulated recall), lesson observations (videotaped) and group reflections and discussions. From the work of Vygotsky, Zaretskii formulated six conditions that can be used to develop learners’ zone of proximal development in learning and these were used as analytical lenses to analyse data to understand how teachers mediated learning and development of Scientific Inquiry in their Grade 3 classrooms. In addition, the principles of an Inquiry-Based Approach were used as analytical lenses as to how teachers implemented the scientific inquiry approach. The categories or components of Topic Specific Pedagogical Content Knowledge were used as analytical lenses as to how these teachers dealt with science concepts or content when using an inquiry-based Approach in their classrooms. Using the home language of learners as an instructional tool, data showed that learners were afforded the opportunity to freely engage in activities and as a result, the context of learning was non-threatening for both teachers and learners. Although learning activities could be improved, teachers created social spaces for learners to take part in learning. In addition, the use of learners’ environments in the observed lessons made it comfortable for learners to act as young scientists. The new knowledge in this research was presented by the use of the adapted analytical tool, which combined diverse components of theory and literature that aligned with each other. The reflection space for the participants did not only afford the participants to discuss about each other’s lessons or experiences in this research, it allowed the participants to engage with the research objectives. The reflection space strengthened the research ethics if this study. Hence, the concept that says, ‘Absenting the absences’. In conclusion, the study thus recommends further professional development spaces that promote community of practice in using an Inquiry-Based Approach in the Foundation Phase.
- Full Text:
- Authors: Nhase, Zukiswa
- Date: 2020
- Subjects: Elementary school teaching-- South Africa , Elementary school teachers -- South Africa , Elementary school teachers -- In-service training -- South Africa , Science -- Study and teaching (Elementary) -- South Africa , Learning, Psychology of , Cognition in children , Inquiry-based learning -- South Africa , Active learning -- South Africa , Pedagogical content knowledge -- South Africa , Educational change -- South Africa , Socio-cultural theory
- Language: English
- Type: Thesis , Masters , PhD
- Identifier: http://hdl.handle.net/10962/145181 , vital:38416
- Description: Some studies have looked at Foundation Phase teachers’ perspectives on the teaching of science in this phase. Such studies have highlighted various challenges on the teaching of science in the Foundation Phase. They pointed out issues such as large class numbers, lack of resources and lack of science knowledge from Foundation Phase teachers. However, none of these studies have looked at how Foundation Phase teachers are using an Inquiry-Based Approach in their classrooms instead few studies have looked at the Foundation Phase teachers’ perspectives about scientific inquiry in this phase. Even though many scholars have presented several challenges to the teaching of science both at secondary and primary level, the argument is strongly made that Foundation Phase learners should be exposed to the learning of science. Generally, children at the Foundation Phase level naturally enjoy observing and thinking about nature; exposing learners to science develops positive attitudes towards science; the use of scientifically informed language at an early age influences the eventual development of scientific concepts; children can understand scientific concepts and reason scientifically; and science is an efficient means for developing scientific thinking. It is within these arguments and discussions that this interpretive case study research sought to explore the Pedagogical Content Knowledge of four Foundation Phase teachers in developing the Scientific Process Skills using an Inquiry-Based Approach in their classrooms and subsequently, the significance of this research study. The socio-cultural theory, Topic Specific Pedagogical Content Knowledge, Zaretskii’s six conditions for development during mediation and the principles of an Inquiry-Based Approach were used as analytical lenses in this research. To use an Inquiry-Based Approach, generally teachers have to understand its principles and know how to develop basic Scientific Process Skills while teaching the science content. In the Foundation Phase, the Natural Sciences component or content is embedded in the Beginning Knowledge study area of the Life Skills subject and this can create difficulties for teachers to even recognise the scientific concepts in the Life Skills. The four IsiXhosa female teachers used the home language of learners as the language of instruction to implement an Inquiry-Based Approach in their classrooms. Data were generated in four phases. Phase one was baseline data through document analysis. Three of the phases were directed by the research question asked. Data were generated using questionnaires, interviews (semi-structured and stimulated recall), lesson observations (videotaped) and group reflections and discussions. From the work of Vygotsky, Zaretskii formulated six conditions that can be used to develop learners’ zone of proximal development in learning and these were used as analytical lenses to analyse data to understand how teachers mediated learning and development of Scientific Inquiry in their Grade 3 classrooms. In addition, the principles of an Inquiry-Based Approach were used as analytical lenses as to how teachers implemented the scientific inquiry approach. The categories or components of Topic Specific Pedagogical Content Knowledge were used as analytical lenses as to how these teachers dealt with science concepts or content when using an inquiry-based Approach in their classrooms. Using the home language of learners as an instructional tool, data showed that learners were afforded the opportunity to freely engage in activities and as a result, the context of learning was non-threatening for both teachers and learners. Although learning activities could be improved, teachers created social spaces for learners to take part in learning. In addition, the use of learners’ environments in the observed lessons made it comfortable for learners to act as young scientists. The new knowledge in this research was presented by the use of the adapted analytical tool, which combined diverse components of theory and literature that aligned with each other. The reflection space for the participants did not only afford the participants to discuss about each other’s lessons or experiences in this research, it allowed the participants to engage with the research objectives. The reflection space strengthened the research ethics if this study. Hence, the concept that says, ‘Absenting the absences’. In conclusion, the study thus recommends further professional development spaces that promote community of practice in using an Inquiry-Based Approach in the Foundation Phase.
- Full Text:
An exploration of organizational expectations of different generations of employees during change
- Authors: Kawana, Susan Mulemwa
- Date: 2020
- Subjects: Organizational change -- Psychological aspects , Organizational behavior -- Namibia -- Case studies , Employees -- Psychology -- Namibia , Organizational change -- Namibia -- Case studies , Intergenerational relations -- Namibia , Namibia. Inland Revenue Directorate , Namibia. Customs and Excise
- Language: English
- Type: text , Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10962/142398 , vital:38076
- Description: The aim of this study is to investigate the organizational expectations of different generations of employees at the Ministry of Finance’s Inland Revenue and Customs and Excise Departments of the Republic of Namibia, which are undergoing organizational change processes. The different generations that were included in this study are Baby Boomers, Generation X, and Generation Y. The study explores the different expectations that the generations have in relation to the changes, in terms of leadership style and communication preferences. This study followed a qualitative approach. Quota sampling was used to select twelve participants for the study. The case study was carried out within a postpositivism paradigm. Data was collected by administering semi-structured, face-to-face interviews. The findings of the study indicate that there are generational differences in respect of preferred leadership styles and communication methods during organizational change. Baby Boomers and Generation X preferred a relationshiporiented leadership style, while generation Y preferred a visionary leadership style. Task-oriented leadership style was not the preferred style of any generation. Rather, in the midst of change, it seems there is a preference for relational leadership across all the Generations. In respect of communication, Baby Boomers preferred face-toface methods, Generation X preferred face-to-face and e-mail methods as sources of change communication, while Generation Y preferred a combination of communication methods. In the midst of change, it seems there is a common preference for face-to-face communication across all the Generations. Furthermore, employees generally did not feel ready for the changes. In the light of these findings, recommendations were made to guide change initiatives amongst employees of various generations. The limitations of the study were its sample size and focus on the public sector. For future research, a larger sample could be selected from all regional offices. Similar research can also be done in the private sector. The findings of the study provide an understanding of the experiences and expectations of different generations of employees during organizational change, and contribute to the body of knowledge on generational differences, readiness for change and the management of different generations as different stakeholders.
- Full Text:
- Authors: Kawana, Susan Mulemwa
- Date: 2020
- Subjects: Organizational change -- Psychological aspects , Organizational behavior -- Namibia -- Case studies , Employees -- Psychology -- Namibia , Organizational change -- Namibia -- Case studies , Intergenerational relations -- Namibia , Namibia. Inland Revenue Directorate , Namibia. Customs and Excise
- Language: English
- Type: text , Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10962/142398 , vital:38076
- Description: The aim of this study is to investigate the organizational expectations of different generations of employees at the Ministry of Finance’s Inland Revenue and Customs and Excise Departments of the Republic of Namibia, which are undergoing organizational change processes. The different generations that were included in this study are Baby Boomers, Generation X, and Generation Y. The study explores the different expectations that the generations have in relation to the changes, in terms of leadership style and communication preferences. This study followed a qualitative approach. Quota sampling was used to select twelve participants for the study. The case study was carried out within a postpositivism paradigm. Data was collected by administering semi-structured, face-to-face interviews. The findings of the study indicate that there are generational differences in respect of preferred leadership styles and communication methods during organizational change. Baby Boomers and Generation X preferred a relationshiporiented leadership style, while generation Y preferred a visionary leadership style. Task-oriented leadership style was not the preferred style of any generation. Rather, in the midst of change, it seems there is a preference for relational leadership across all the Generations. In respect of communication, Baby Boomers preferred face-toface methods, Generation X preferred face-to-face and e-mail methods as sources of change communication, while Generation Y preferred a combination of communication methods. In the midst of change, it seems there is a common preference for face-to-face communication across all the Generations. Furthermore, employees generally did not feel ready for the changes. In the light of these findings, recommendations were made to guide change initiatives amongst employees of various generations. The limitations of the study were its sample size and focus on the public sector. For future research, a larger sample could be selected from all regional offices. Similar research can also be done in the private sector. The findings of the study provide an understanding of the experiences and expectations of different generations of employees during organizational change, and contribute to the body of knowledge on generational differences, readiness for change and the management of different generations as different stakeholders.
- Full Text:
An exploration of the overlap between open source threat intelligence and active internet background radiation
- Authors: Pearson, Deon Turner
- Date: 2020
- Subjects: Computer networks -- Security measures , Computer networks -- Monitoring , Malware (Computer software) , TCP/IP (Computer network protocol) , Open source intelligence
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/103802 , vital:32299
- Description: Organisations and individuals are facing increasing persistent threats on the Internet from worms, port scanners, and malicious software (malware). These threats are constantly evolving as attack techniques are discovered. To aid in the detection and prevention of such threats, and to stay ahead of the adversaries conducting the attacks, security specialists are utilising Threat Intelligence (TI) data in their defense strategies. TI data can be obtained from a variety of different sources such as private routers, firewall logs, public archives, and public or private network telescopes. However, at the rate and ease at which TI is produced and published, specifically Open Source Threat Intelligence (OSINT), the quality is dropping, resulting in fragmented, context-less and variable data. This research utilised two sets of TI data, a collection of OSINT and active Internet Background Radiation (IBR). The data was collected over a period of 12 months, from 37 publicly available OSINT datasets and five IBR datasets. Through the identification and analysis of common data between the OSINT and IBR datasets, this research was able to gain insight into how effective OSINT is at detecting and potentially reducing ongoing malicious Internet traffic. As part of this research, a minimal framework for the collection, processing/analysis, and distribution of OSINT was developed and tested. The research focused on exploring areas in common between the two datasets, with the intention of creating an enriched, contextualised, and reduced set of malicious source IP addresses that could be published for consumers to use in their own environment. The findings of this research pointed towards a persistent group of IP addresses observed on both datasets, over the period under research. Using these persistent IP addresses, the research was able to identify specific services being targeted. Amongst these persistent IP addresses were significant packets from Mirai like IoT Malware on port 23/tcp and 2323/tcp as well as general scanning activity on port 445/TCP.
- Full Text:
- Authors: Pearson, Deon Turner
- Date: 2020
- Subjects: Computer networks -- Security measures , Computer networks -- Monitoring , Malware (Computer software) , TCP/IP (Computer network protocol) , Open source intelligence
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/103802 , vital:32299
- Description: Organisations and individuals are facing increasing persistent threats on the Internet from worms, port scanners, and malicious software (malware). These threats are constantly evolving as attack techniques are discovered. To aid in the detection and prevention of such threats, and to stay ahead of the adversaries conducting the attacks, security specialists are utilising Threat Intelligence (TI) data in their defense strategies. TI data can be obtained from a variety of different sources such as private routers, firewall logs, public archives, and public or private network telescopes. However, at the rate and ease at which TI is produced and published, specifically Open Source Threat Intelligence (OSINT), the quality is dropping, resulting in fragmented, context-less and variable data. This research utilised two sets of TI data, a collection of OSINT and active Internet Background Radiation (IBR). The data was collected over a period of 12 months, from 37 publicly available OSINT datasets and five IBR datasets. Through the identification and analysis of common data between the OSINT and IBR datasets, this research was able to gain insight into how effective OSINT is at detecting and potentially reducing ongoing malicious Internet traffic. As part of this research, a minimal framework for the collection, processing/analysis, and distribution of OSINT was developed and tested. The research focused on exploring areas in common between the two datasets, with the intention of creating an enriched, contextualised, and reduced set of malicious source IP addresses that could be published for consumers to use in their own environment. The findings of this research pointed towards a persistent group of IP addresses observed on both datasets, over the period under research. Using these persistent IP addresses, the research was able to identify specific services being targeted. Amongst these persistent IP addresses were significant packets from Mirai like IoT Malware on port 23/tcp and 2323/tcp as well as general scanning activity on port 445/TCP.
- Full Text:
An explorative study of Makana local football association coaches characteristics, experiences and needs
- Authors: Callow, Gavin
- Date: 2020
- Subjects: Makana Local Football Association (South Africa) , Football -- Coaching -- South Africa , Football coaches -- South Africa
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/138785 , vital:37672
- Description: Introduction: Sports participation has been associated with a number of benefits to young athletes, outside of purely physical health. One of the key components of a successful sports talent identification and development program is effective coaching. A foundation of effective coaching is the coach’s knowledge which can be developed through formal, non-formal and informal means of education. The majority of coach education literature has however focused on coaches from developed countries. Limited studies have looked at the educational experiences and needs of South African coaches, particularly football coaches. The purpose of the current investigation is to establish Local Football Association (LFA) coaches’ perceptions of their educational backgrounds and what knowledge they deem important to be effective coaches. Method: A mixed methods approach was used in which (n=25) Makana LFA coaches answered a questionnaire with the aim of identifying their educational histories and what their current educational needs were. A semi-structured interview was also implemented in which some of the respondents (n=4) were asked more in-depth questions around the same topics, to create a more complete coaching profile. Results: The questionnaire responses highlighted that only 8% of the coaches possess a formal coaching qualification and all of the coaches work on a volunteer basis. Previous experience as a player is the chief source of knowledge for Makana LFA coaches. Not having enough available time is the main perceived barrier for 56% of participants to seeking out further educational opportunities. Fundamentals of coaching was selected by 56% of the coaches as a key subject they want to learn more about. Findings from the interview demonstrate that participants coach multiple teams and often have to rely on senior players to take up assistant coach positions, as well as managing their time effectively to work with all their teams. Informal education is the main source of information for the coaches which includes asking for advice, reading coaching manuals or having a mentor. The coaches value all 3 forms of education, however non-formal workshops are favoured. This is due to all of the coaches already having some form of informal learning experience and formal learning opportunities being too costly to pursue. A combination of lectures, practical sessions and group discussions is desired as a delivery method of coaching knowledge. Discussion: The level of coaching qualifications in the LFA is low, this may have significant implications for talent identification and development in the Sarah Baartman region. All the coaches are volunteer coaches, who primarily rely on informal means of coaching education. ‘Time’ was indicated to be a major barrier, to coaches seeking out educational opportunities. Coaches indicated that they would benefit from a coaching program if it took into consideration their needs, such as wanting to learn more about interpersonal and intrapersonal awareness. Conclusion: If local coaching programs are to be effective, they must reflect the educational needs of their community.
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- Authors: Callow, Gavin
- Date: 2020
- Subjects: Makana Local Football Association (South Africa) , Football -- Coaching -- South Africa , Football coaches -- South Africa
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/138785 , vital:37672
- Description: Introduction: Sports participation has been associated with a number of benefits to young athletes, outside of purely physical health. One of the key components of a successful sports talent identification and development program is effective coaching. A foundation of effective coaching is the coach’s knowledge which can be developed through formal, non-formal and informal means of education. The majority of coach education literature has however focused on coaches from developed countries. Limited studies have looked at the educational experiences and needs of South African coaches, particularly football coaches. The purpose of the current investigation is to establish Local Football Association (LFA) coaches’ perceptions of their educational backgrounds and what knowledge they deem important to be effective coaches. Method: A mixed methods approach was used in which (n=25) Makana LFA coaches answered a questionnaire with the aim of identifying their educational histories and what their current educational needs were. A semi-structured interview was also implemented in which some of the respondents (n=4) were asked more in-depth questions around the same topics, to create a more complete coaching profile. Results: The questionnaire responses highlighted that only 8% of the coaches possess a formal coaching qualification and all of the coaches work on a volunteer basis. Previous experience as a player is the chief source of knowledge for Makana LFA coaches. Not having enough available time is the main perceived barrier for 56% of participants to seeking out further educational opportunities. Fundamentals of coaching was selected by 56% of the coaches as a key subject they want to learn more about. Findings from the interview demonstrate that participants coach multiple teams and often have to rely on senior players to take up assistant coach positions, as well as managing their time effectively to work with all their teams. Informal education is the main source of information for the coaches which includes asking for advice, reading coaching manuals or having a mentor. The coaches value all 3 forms of education, however non-formal workshops are favoured. This is due to all of the coaches already having some form of informal learning experience and formal learning opportunities being too costly to pursue. A combination of lectures, practical sessions and group discussions is desired as a delivery method of coaching knowledge. Discussion: The level of coaching qualifications in the LFA is low, this may have significant implications for talent identification and development in the Sarah Baartman region. All the coaches are volunteer coaches, who primarily rely on informal means of coaching education. ‘Time’ was indicated to be a major barrier, to coaches seeking out educational opportunities. Coaches indicated that they would benefit from a coaching program if it took into consideration their needs, such as wanting to learn more about interpersonal and intrapersonal awareness. Conclusion: If local coaching programs are to be effective, they must reflect the educational needs of their community.
- Full Text: