Transforming the use of tutorials through academic staff development
- Clarence, Sherran, Wolff, Karin, Winberg, Simon, Farmer, Jean-Lee, Esambe, Emmanuel
- Authors: Clarence, Sherran , Wolff, Karin , Winberg, Simon , Farmer, Jean-Lee , Esambe, Emmanuel
- Date: 2016
- Language: English
- Type: text , conference publication
- Identifier: http://hdl.handle.net/10962/66982 , vital:29008
- Full Text:
- Date Issued: 2016
- Authors: Clarence, Sherran , Wolff, Karin , Winberg, Simon , Farmer, Jean-Lee , Esambe, Emmanuel
- Date: 2016
- Language: English
- Type: text , conference publication
- Identifier: http://hdl.handle.net/10962/66982 , vital:29008
- Full Text:
- Date Issued: 2016
Transitions into informal employment: an analysis of South African panel data: 2008-2012
- Authors: Muttze, Takudzwa
- Date: 2016
- Language: English
- Type: Thesis , Masters , MEcon
- Identifier: http://hdl.handle.net/10962/4498 , vital:20682
- Description: South Africa’s labour market is characterised by high unemployment but relatively low levels of informal employment, making it distinct from other developing countries. The existing literature appears to show evidence of high mobility rates of labour across labour market states. The coexistence of high labour mobility rates, yet high unemployment and weak informal employment in South Africa’s labour market is therefore puzzling. Considerable research has been done to explain this phenomenon and has suggested that barriers to informal entrepreneurship form the key reason why informal employment is relatively low in South Africa compared to other developing countries. Worker transitions have however not been a focal question in the literature. Using data from the National Tncome Dynamics Study (NTDS 2008-2012), this study sought to examine the characteristics of workers who move into informal employment, attaching importance to those who become self-employed. Transition matrices are constructed showing the proportion of workers who stayed or moved into different labour market states between 2008 and 2012, and linking the movements to 2008 personal characteristics. Churning between labour market states was found to be relatively high, albeit formal wage employment exhibiting immobility. Transitions out of informal employment were high, reflecting its survivalist nature. Conversely, those from unemployment into informal employment, particularly self-employment were low. Using the probit regression model, transitions to informal employment were found to be more associated with workers who are generally marginalised from formal employment opportunities. The results suggest that the South African labour market is to a larger extent not reflective of the Dualist narrative of ease of movement of workers from unemployment into informal employment and barriers into informal entrepreneurship are high. To date, policies which have sought to encourage informal entrepreneurship have not been a success. A central challenge to policymakers is to create an enabling environment for the unemployed to start their own informal businesses. This has the potential of reducing unemployment and poverty rates in the country.
- Full Text:
- Date Issued: 2016
- Authors: Muttze, Takudzwa
- Date: 2016
- Language: English
- Type: Thesis , Masters , MEcon
- Identifier: http://hdl.handle.net/10962/4498 , vital:20682
- Description: South Africa’s labour market is characterised by high unemployment but relatively low levels of informal employment, making it distinct from other developing countries. The existing literature appears to show evidence of high mobility rates of labour across labour market states. The coexistence of high labour mobility rates, yet high unemployment and weak informal employment in South Africa’s labour market is therefore puzzling. Considerable research has been done to explain this phenomenon and has suggested that barriers to informal entrepreneurship form the key reason why informal employment is relatively low in South Africa compared to other developing countries. Worker transitions have however not been a focal question in the literature. Using data from the National Tncome Dynamics Study (NTDS 2008-2012), this study sought to examine the characteristics of workers who move into informal employment, attaching importance to those who become self-employed. Transition matrices are constructed showing the proportion of workers who stayed or moved into different labour market states between 2008 and 2012, and linking the movements to 2008 personal characteristics. Churning between labour market states was found to be relatively high, albeit formal wage employment exhibiting immobility. Transitions out of informal employment were high, reflecting its survivalist nature. Conversely, those from unemployment into informal employment, particularly self-employment were low. Using the probit regression model, transitions to informal employment were found to be more associated with workers who are generally marginalised from formal employment opportunities. The results suggest that the South African labour market is to a larger extent not reflective of the Dualist narrative of ease of movement of workers from unemployment into informal employment and barriers into informal entrepreneurship are high. To date, policies which have sought to encourage informal entrepreneurship have not been a success. A central challenge to policymakers is to create an enabling environment for the unemployed to start their own informal businesses. This has the potential of reducing unemployment and poverty rates in the country.
- Full Text:
- Date Issued: 2016
transmutation
- Authors: Leff, Carol W
- Date: 2016
- Subjects: To be catalogued
- Language: English
- Type: text , poem
- Identifier: http://hdl.handle.net/10962/462929 , vital:76348 , ISBN 0028-4459 , https://journals.co.za/doi/epdf/10.10520/EJC197037
- Description: New Coin is one of South Africa's most established and influential poetry journals. It publishes poetry, and poetry-related reviews, commentary and interviews. New Coin places a particular emphasis on evolving forms and experimental use of the English language in poetry in the South African context. In this sense it has traced the most exciting trends and currents in contemporary poetry in South Africa for a decade of more. The journal is published twice a year in June and December by the Institute for the Study of English in Africa (ISEA), Rhodes University.
- Full Text:
- Date Issued: 2016
- Authors: Leff, Carol W
- Date: 2016
- Subjects: To be catalogued
- Language: English
- Type: text , poem
- Identifier: http://hdl.handle.net/10962/462929 , vital:76348 , ISBN 0028-4459 , https://journals.co.za/doi/epdf/10.10520/EJC197037
- Description: New Coin is one of South Africa's most established and influential poetry journals. It publishes poetry, and poetry-related reviews, commentary and interviews. New Coin places a particular emphasis on evolving forms and experimental use of the English language in poetry in the South African context. In this sense it has traced the most exciting trends and currents in contemporary poetry in South Africa for a decade of more. The journal is published twice a year in June and December by the Institute for the Study of English in Africa (ISEA), Rhodes University.
- Full Text:
- Date Issued: 2016
Trends in the game industry in the Eastern Cape
- Authors: Ferreira, Janene
- Date: 2016
- Subjects: Game farms -- South Africa -- Eastern Cape -- Management , Wildlife management -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/5451 , vital:20846
- Description: The game industry has become one of the fastest-growing industries in South Africa and consequently, during recent years, a growing number of stock farms have been converted to game farms. All forms of utilization within the game industry play a vital role with regards to sustainability and simultaneously contributing a significant boost to the national economy. It is therefore important to ensure that game ranchers are as well-informed as possible in their decision-making, as well as in assessing their outputs and endeavours. However, the information available on the game industry in the Eastern Cape is limited. This research study therefore focuses on the emerging trends in the game industry in the province. The objectives of the research are to examine various pertinent factors associated with the game industry, investigate the trends and discuss whether these trends have any implications for future purposes. The research commenced with a literature review, as well as information from earlier survey studies of the Eastern Cape game industry. For the current study, a replicate survey was conducted throughout the Eastern Cape, involving as many game ranchers as possible, and data were collected by means of self-administered questionnaires. The dilemma confronting the black wildebeest in the Eastern Cape was thoroughly investigated, together with farmers’ opinions and trends for the future of the species. It was important to include this particular aspect in the research, as at the time of the survey, widespread concerns were expressed with regards to new legislation which emerged during that time. The research cast light on several aspects associated with the industry which could positively assist game ranchers towards improved management and planning, as well as provide guidelines for future development purposes. Furthermore, the research identified crucial issues that should receive immediate attention from stakeholders across the industry as well as government.
- Full Text:
- Date Issued: 2016
- Authors: Ferreira, Janene
- Date: 2016
- Subjects: Game farms -- South Africa -- Eastern Cape -- Management , Wildlife management -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/5451 , vital:20846
- Description: The game industry has become one of the fastest-growing industries in South Africa and consequently, during recent years, a growing number of stock farms have been converted to game farms. All forms of utilization within the game industry play a vital role with regards to sustainability and simultaneously contributing a significant boost to the national economy. It is therefore important to ensure that game ranchers are as well-informed as possible in their decision-making, as well as in assessing their outputs and endeavours. However, the information available on the game industry in the Eastern Cape is limited. This research study therefore focuses on the emerging trends in the game industry in the province. The objectives of the research are to examine various pertinent factors associated with the game industry, investigate the trends and discuss whether these trends have any implications for future purposes. The research commenced with a literature review, as well as information from earlier survey studies of the Eastern Cape game industry. For the current study, a replicate survey was conducted throughout the Eastern Cape, involving as many game ranchers as possible, and data were collected by means of self-administered questionnaires. The dilemma confronting the black wildebeest in the Eastern Cape was thoroughly investigated, together with farmers’ opinions and trends for the future of the species. It was important to include this particular aspect in the research, as at the time of the survey, widespread concerns were expressed with regards to new legislation which emerged during that time. The research cast light on several aspects associated with the industry which could positively assist game ranchers towards improved management and planning, as well as provide guidelines for future development purposes. Furthermore, the research identified crucial issues that should receive immediate attention from stakeholders across the industry as well as government.
- Full Text:
- Date Issued: 2016
Trophic dynamics of the cape stumpnose (Rhabdosargus holubi, Sparidae) across three adjacent aquatic habitats
- Carassou, Laure, Whitfield, Alan K, Bergamino, Leandro, Moyo, Sydney, Richoux, Nicole B
- Authors: Carassou, Laure , Whitfield, Alan K , Bergamino, Leandro , Moyo, Sydney , Richoux, Nicole B
- Date: 2016
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/456362 , vital:75506 , xlink:href="https://doi.org/10.1007/s12237-016-0075-3"
- Description: Migratory fish species are major vectors of connectivity among aquatic habitats. In this study, conventional stomach contents and stable isotope methods (δ13C and δ15N) were combined to understand how fish of different sizes feed across contrasting aquatic habitats. The Cape stumpnose Rhabdosargus holubi (Sparidae, Perciformes) was selected as an abundant estuarine-dependent species in the permanently open Kowie system, South Africa. Three different habitats were sampled in the region, namely, river, estuary, and sea. Fish entered the estuary as post-larvae from the marine environment, resided in the estuary and lower part of the river as juveniles, and then returned to the sea as sub-adults. The diet varied among habitats, seasons, and fish sizes. “Stable Isotope Analysis with R” (SIAR) Bayesian mixing models mostly supported the results from the stomach content analyses, but also revealed the importance of some prey (e.g., insects) that were underestimated in the consumed diet. Rhabdosargus holubi δ13C values indicated a clear spatial gradient in the origin of food sources assimilated across the habitats, with increasing δ13C along the freshwater-marine continuum. The δ13C ranges of sources and fish also overlapped within each habitat along this continuum, thus illustrating the fidelity of R. holubi to specific habitats at different life stages. By consuming prey in a particular habitat before migrating, either permanently or temporarily to another habitat, R. holubi participates in allochthonous fluxes among riverine, estuarine, and coastal marine environments, with approximately 7 tonnes of Cape stumpnose productivity being exported from the 142-ha Kowie Estuary to the sea each year.
- Full Text:
- Date Issued: 2016
- Authors: Carassou, Laure , Whitfield, Alan K , Bergamino, Leandro , Moyo, Sydney , Richoux, Nicole B
- Date: 2016
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/456362 , vital:75506 , xlink:href="https://doi.org/10.1007/s12237-016-0075-3"
- Description: Migratory fish species are major vectors of connectivity among aquatic habitats. In this study, conventional stomach contents and stable isotope methods (δ13C and δ15N) were combined to understand how fish of different sizes feed across contrasting aquatic habitats. The Cape stumpnose Rhabdosargus holubi (Sparidae, Perciformes) was selected as an abundant estuarine-dependent species in the permanently open Kowie system, South Africa. Three different habitats were sampled in the region, namely, river, estuary, and sea. Fish entered the estuary as post-larvae from the marine environment, resided in the estuary and lower part of the river as juveniles, and then returned to the sea as sub-adults. The diet varied among habitats, seasons, and fish sizes. “Stable Isotope Analysis with R” (SIAR) Bayesian mixing models mostly supported the results from the stomach content analyses, but also revealed the importance of some prey (e.g., insects) that were underestimated in the consumed diet. Rhabdosargus holubi δ13C values indicated a clear spatial gradient in the origin of food sources assimilated across the habitats, with increasing δ13C along the freshwater-marine continuum. The δ13C ranges of sources and fish also overlapped within each habitat along this continuum, thus illustrating the fidelity of R. holubi to specific habitats at different life stages. By consuming prey in a particular habitat before migrating, either permanently or temporarily to another habitat, R. holubi participates in allochthonous fluxes among riverine, estuarine, and coastal marine environments, with approximately 7 tonnes of Cape stumpnose productivity being exported from the 142-ha Kowie Estuary to the sea each year.
- Full Text:
- Date Issued: 2016
Trophic interactions in an austral temperate ephemeral pond inferred using stable isotope analysis
- Dalu, Tatenda, Weyl, Olaf L F, Froneman, P William, Wasserman, Ryan J
- Authors: Dalu, Tatenda , Weyl, Olaf L F , Froneman, P William , Wasserman, Ryan J
- Date: 2016
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/68022 , vital:29185 , https://doi.org/10.1007/s10750-015-2533-5
- Description: Publisher version , Ephemeral ponds are vulnerable aquatic habitats which are difficult to protect given their dynamic nature and sensitivity to degradation during dry periods. Little information is available on these habitats in austral regions, with almost no information on food-web structure and complexity. The study aimed to assess trophic interactions among dominant organisms in an ephemeral pond food web, and investigate the importance of autochthonous and allochthonous carbon, using 13C and 15N isotopes. Results of the investigation suggest that the food web comprised four trophic levels, with the top predators being Notonectids (Notonecta sp.) and diving beetles (Cybister tripunctatus (Olivier)). Intermediary trophic levels comprised zooplankton (daphniids and copepodids), macroinvertebrates (e.g. micronectids and molluscs) and tadpoles. Generalist feeders dominated the higher trophic levels (>3) with specialists comprising the lower trophic levels (≤3). The consumers preferred autochthonous fine particulate organic matter, epiphyton and submerged macrophyte organic matter sources over allochthonous sources. Autochthonous organic matter was transferred to the food web via zooplankton and select macroinvertebrates including Micronecta sp. and Physa sp. The food-web structure within the pond appeared to reflect the secondary stage of trophic structural complexity in the evolution of ephemeral ponds over the course of their hydro-period.
- Full Text: false
- Date Issued: 2016
- Authors: Dalu, Tatenda , Weyl, Olaf L F , Froneman, P William , Wasserman, Ryan J
- Date: 2016
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/68022 , vital:29185 , https://doi.org/10.1007/s10750-015-2533-5
- Description: Publisher version , Ephemeral ponds are vulnerable aquatic habitats which are difficult to protect given their dynamic nature and sensitivity to degradation during dry periods. Little information is available on these habitats in austral regions, with almost no information on food-web structure and complexity. The study aimed to assess trophic interactions among dominant organisms in an ephemeral pond food web, and investigate the importance of autochthonous and allochthonous carbon, using 13C and 15N isotopes. Results of the investigation suggest that the food web comprised four trophic levels, with the top predators being Notonectids (Notonecta sp.) and diving beetles (Cybister tripunctatus (Olivier)). Intermediary trophic levels comprised zooplankton (daphniids and copepodids), macroinvertebrates (e.g. micronectids and molluscs) and tadpoles. Generalist feeders dominated the higher trophic levels (>3) with specialists comprising the lower trophic levels (≤3). The consumers preferred autochthonous fine particulate organic matter, epiphyton and submerged macrophyte organic matter sources over allochthonous sources. Autochthonous organic matter was transferred to the food web via zooplankton and select macroinvertebrates including Micronecta sp. and Physa sp. The food-web structure within the pond appeared to reflect the secondary stage of trophic structural complexity in the evolution of ephemeral ponds over the course of their hydro-period.
- Full Text: false
- Date Issued: 2016
Two in one: cryptic species discovered in biological control agent populations using molecular data and crossbreeding experiments
- Paterson, Iain D, Mangan, Rose, Downie, Douglas A, Coetzee, Julie A, Hill, Martin P, Burke, Ashley M, Downey, Paul O, Henry, Thomas J, Compton, Stephen G
- Authors: Paterson, Iain D , Mangan, Rose , Downie, Douglas A , Coetzee, Julie A , Hill, Martin P , Burke, Ashley M , Downey, Paul O , Henry, Thomas J , Compton, Stephen G
- Date: 2016
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/424877 , vital:72191 , xlink:href="https://doi.org/10.1002/ece3.2297"
- Description: There are many examples of cryptic species that have been identified through DNA-barcoding or other genetic techniques. There are, however, very few confirmations of cryptic species being reproductively isolated. This study presents one of the few cases of cryptic species that has been confirmed to be reproductively isolated and therefore true species according to the biological species concept. The cryptic species are of special interest because they were discovered within biological control agent populations. Two geographically isolated populations of Eccritotarsus catarinensis (Carvalho) [Hemiptera: Miridae], a biological control agent for the invasive aquatic macrophyte, water hyacinth, Eichhornia crassipes (Mart.) Solms [Pontederiaceae], in South Africa, were sampled from the native range of the species in South America. Morphological characteristics indicated that both populations were the same species according to the current taxonomy, but subsequent DNA analysis and breeding experiments revealed that the two populations are reproductively isolated. Crossbreeding experiments resulted in very few hybrid offspring when individuals were forced to interbreed with individuals of the other population, and no hybrid offspring were recorded when a choice of mate from either population was offered. The data indicate that the two populations are cryptic species that are reproductively incompatible. Subtle but reliable diagnostic characteristics were then identified to distinguish between the two species which would have been considered intraspecific variation without the data from the genetics and interbreeding experiments. These findings suggest that all consignments of biological control agents from allopatric populations should be screened for cryptic species using genetic techniques and that the importation of multiple consignments of the same species for biological control should be conducted with caution.
- Full Text:
- Date Issued: 2016
- Authors: Paterson, Iain D , Mangan, Rose , Downie, Douglas A , Coetzee, Julie A , Hill, Martin P , Burke, Ashley M , Downey, Paul O , Henry, Thomas J , Compton, Stephen G
- Date: 2016
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/424877 , vital:72191 , xlink:href="https://doi.org/10.1002/ece3.2297"
- Description: There are many examples of cryptic species that have been identified through DNA-barcoding or other genetic techniques. There are, however, very few confirmations of cryptic species being reproductively isolated. This study presents one of the few cases of cryptic species that has been confirmed to be reproductively isolated and therefore true species according to the biological species concept. The cryptic species are of special interest because they were discovered within biological control agent populations. Two geographically isolated populations of Eccritotarsus catarinensis (Carvalho) [Hemiptera: Miridae], a biological control agent for the invasive aquatic macrophyte, water hyacinth, Eichhornia crassipes (Mart.) Solms [Pontederiaceae], in South Africa, were sampled from the native range of the species in South America. Morphological characteristics indicated that both populations were the same species according to the current taxonomy, but subsequent DNA analysis and breeding experiments revealed that the two populations are reproductively isolated. Crossbreeding experiments resulted in very few hybrid offspring when individuals were forced to interbreed with individuals of the other population, and no hybrid offspring were recorded when a choice of mate from either population was offered. The data indicate that the two populations are cryptic species that are reproductively incompatible. Subtle but reliable diagnostic characteristics were then identified to distinguish between the two species which would have been considered intraspecific variation without the data from the genetics and interbreeding experiments. These findings suggest that all consignments of biological control agents from allopatric populations should be screened for cryptic species using genetic techniques and that the importation of multiple consignments of the same species for biological control should be conducted with caution.
- Full Text:
- Date Issued: 2016
Two new species of Xosopsaltria Kirkaldy, 1904, with a key to the species of South African pygmy bladder cicadas (Hemiptera Cicadidae Cicadettinae Tettigomyiini)
- Sanborn, Allen F, Villet, Martin H
- Authors: Sanborn, Allen F , Villet, Martin H
- Date: 2016
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/441274 , vital:73873 , https://mapress.com/zt/article/view/zootaxa.4092.2.3
- Description: Two species, Xosopsaltria brachyptera n. sp. and Xosopsaltria vitripennis n. sp., are described as new. Notes on their biology and a key to the South African pygmy bladder cicadas are also provided.
- Full Text:
- Date Issued: 2016
- Authors: Sanborn, Allen F , Villet, Martin H
- Date: 2016
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/441274 , vital:73873 , https://mapress.com/zt/article/view/zootaxa.4092.2.3
- Description: Two species, Xosopsaltria brachyptera n. sp. and Xosopsaltria vitripennis n. sp., are described as new. Notes on their biology and a key to the South African pygmy bladder cicadas are also provided.
- Full Text:
- Date Issued: 2016
Two uses of DNA sequence variation in tracing evolutionary processes in Old World primates (Primates: Catarrhini)
- Authors: Dosi, Banele
- Date: 2016
- Subjects: Primates -- Evolution Monkeys Cercopithecidae
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10353/8022 , vital:31464
- Description: Primate evolution is particularly interesting to humans, because it includes our own history. Molecular genetics is by far the most dynamic field in contemporary biology, and offers a host of new techniques for investigating evolutionary processes and patterns. In the mid-twentieth century molecular genetics evolved from being a means of visualising hidden variation (e.g. allozymes) to tracing phylogenetic relationships between and among species (evolutionary histories of populations), and now has a wide variety of applications in medicine, species identification and relationships, and even wildlife forensics. For my Master’s project I investigated two applications of molecular genetic analysis to questions regarding the evolution of Old World monkeys (Catarrhini). First, I participated in a study designed to test the hypothesis that different primate social structures – particularly mating systems – may be reflected in the structure of a species genome. We investigated whether increased sperm production as a result of sexual selection increases the number of copy number variations (CNVs) that can be detected by comparing the male specific region Y (MSY) located on the Y chromosome in a sample of primate species. We did not find a clear differentiation between the primate species as hypothesised, which thus requires a more complex explanation, e.g. in terms of the type of environment rather than the mating system of the species, or possibly the active/inactive status of the genes. The second part of my study was phylogeographic in approach. I collaborated with researchers studying the distribution of Afromontane samango monkeys (Cercopithecus albogularis labiatus) in the Eastern Cape. I sequenced tissues from 5 samango monkey specimens found opportunistically in the Hogsback and coastal forests and analysed their genetic variation relative to the data published by Dalton et al. 2015. The Hogsback sample was not monophyletic relative to the sample from the coastal forests, indicating that, on the basis of this very small sample size, these populations have not been separated historically. In order to validate this conclusion, I will need to investigate a larger sample size. From this study I developed valuable skills in the areas of the laboratory techniques involved in molecular sequence analysis, and an appreciation for the importance of large sample sizes in deriving reliable results. I intend to continue in the future with a phylogeographic study of samango monkeys.
- Full Text:
- Date Issued: 2016
- Authors: Dosi, Banele
- Date: 2016
- Subjects: Primates -- Evolution Monkeys Cercopithecidae
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10353/8022 , vital:31464
- Description: Primate evolution is particularly interesting to humans, because it includes our own history. Molecular genetics is by far the most dynamic field in contemporary biology, and offers a host of new techniques for investigating evolutionary processes and patterns. In the mid-twentieth century molecular genetics evolved from being a means of visualising hidden variation (e.g. allozymes) to tracing phylogenetic relationships between and among species (evolutionary histories of populations), and now has a wide variety of applications in medicine, species identification and relationships, and even wildlife forensics. For my Master’s project I investigated two applications of molecular genetic analysis to questions regarding the evolution of Old World monkeys (Catarrhini). First, I participated in a study designed to test the hypothesis that different primate social structures – particularly mating systems – may be reflected in the structure of a species genome. We investigated whether increased sperm production as a result of sexual selection increases the number of copy number variations (CNVs) that can be detected by comparing the male specific region Y (MSY) located on the Y chromosome in a sample of primate species. We did not find a clear differentiation between the primate species as hypothesised, which thus requires a more complex explanation, e.g. in terms of the type of environment rather than the mating system of the species, or possibly the active/inactive status of the genes. The second part of my study was phylogeographic in approach. I collaborated with researchers studying the distribution of Afromontane samango monkeys (Cercopithecus albogularis labiatus) in the Eastern Cape. I sequenced tissues from 5 samango monkey specimens found opportunistically in the Hogsback and coastal forests and analysed their genetic variation relative to the data published by Dalton et al. 2015. The Hogsback sample was not monophyletic relative to the sample from the coastal forests, indicating that, on the basis of this very small sample size, these populations have not been separated historically. In order to validate this conclusion, I will need to investigate a larger sample size. From this study I developed valuable skills in the areas of the laboratory techniques involved in molecular sequence analysis, and an appreciation for the importance of large sample sizes in deriving reliable results. I intend to continue in the future with a phylogeographic study of samango monkeys.
- Full Text:
- Date Issued: 2016
Uhlalutyo ngokwesithako sobunzululwazi nkcubeko-ntlalo yaseAfrika kwinoveli yesiXhosa: Inkululeko isentabeni
- Authors: Bali, Nolundi Monica
- Date: 2016
- Subjects: Xhosa literature -- History and criticism
- Language: Xhosa
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/9077 , vital:26462
- Description: Kule ngxoxo kuqwalaswele indlela amasiko nezithethe asetyenziswe ngayo kwincwadi kaSaule, ethi, Inkululeko isentabeni. Le ngxoxo ijolise ekuncomeni indlela lo kaSaule awasebenzise ngayo amasiko kunye nezithethe zakwaNtu ukwakha isizwe esimnyama. Konke oku kudandalazisa ukubaluleka kokusetyenziswa kwawo ukwakha isizwe. Injongo yolu phando kukuphendla indlela umtshato, isithembu, ulwaluko, imbeleko, intonjane, ukufa, ukukhapha, ukubuyisa nokungenwa ezaziqhutywa ngayo nezizathu zoko. Le ngxoxo iza kuphonononga ixhaswe ngezithako eziziimbono zeengcali zohlalutyo kwintlalo kaNtu. Ingxoxo le yahlulwe yazizahluko ezintandathu. Isahluko sokuqala sivula ngentshayelelo, ze sidandalazise intsusamabandla yolu phando, kushukuxwe imbangeli yophando, ze kwenziwe uphengululo lweencwadi zeengcali kwisithako sobuNzululwazi Nkcubeko-Ntlalo. Isahluko sesibini, siqwalasela ukuxabiseka kolwendo ngokwengcinga yesiNtu kwincwadi kaSaule. Indlela isiko lokuthwala lalisenziwa ngalo mandulo xa kuthelekiswa kweyangoku, nemiceli-mngeni elijamelene nalo eli siko. Isahluko sesithathu, sijongene nesithembu, iimeko ezazinyanzelisa ukuthathwa komfazi wesibini nangaphezulu nemiceli-mngeni ekhoyo kwesi sithethe. Isahluko sesine, singolwaluko ngemihla yamandulo size sithelekiswe nale mihla siphila kuyo. Iingxaki ezikhoyo kweli siko ezibangelwa kukungakhathali kwengcibi, namakhankatha. Esesihlanu, isahluko singamasiko nezithethe, iindlela ezazisaya kusetyenziswa mandulo kuthelekiswa nezeli xesha lokhanyo ekwenzeni la masiko nezi zithethe. Isahluko sesithandathu, sesokuphetha, siyintyilazwi yeengxoxo ezikolu hlalutyo, kuxilongwa ubuzaza besithako sobunzululwazi nkcubeko-ntlalo.
- Full Text:
- Date Issued: 2016
- Authors: Bali, Nolundi Monica
- Date: 2016
- Subjects: Xhosa literature -- History and criticism
- Language: Xhosa
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/9077 , vital:26462
- Description: Kule ngxoxo kuqwalaswele indlela amasiko nezithethe asetyenziswe ngayo kwincwadi kaSaule, ethi, Inkululeko isentabeni. Le ngxoxo ijolise ekuncomeni indlela lo kaSaule awasebenzise ngayo amasiko kunye nezithethe zakwaNtu ukwakha isizwe esimnyama. Konke oku kudandalazisa ukubaluleka kokusetyenziswa kwawo ukwakha isizwe. Injongo yolu phando kukuphendla indlela umtshato, isithembu, ulwaluko, imbeleko, intonjane, ukufa, ukukhapha, ukubuyisa nokungenwa ezaziqhutywa ngayo nezizathu zoko. Le ngxoxo iza kuphonononga ixhaswe ngezithako eziziimbono zeengcali zohlalutyo kwintlalo kaNtu. Ingxoxo le yahlulwe yazizahluko ezintandathu. Isahluko sokuqala sivula ngentshayelelo, ze sidandalazise intsusamabandla yolu phando, kushukuxwe imbangeli yophando, ze kwenziwe uphengululo lweencwadi zeengcali kwisithako sobuNzululwazi Nkcubeko-Ntlalo. Isahluko sesibini, siqwalasela ukuxabiseka kolwendo ngokwengcinga yesiNtu kwincwadi kaSaule. Indlela isiko lokuthwala lalisenziwa ngalo mandulo xa kuthelekiswa kweyangoku, nemiceli-mngeni elijamelene nalo eli siko. Isahluko sesithathu, sijongene nesithembu, iimeko ezazinyanzelisa ukuthathwa komfazi wesibini nangaphezulu nemiceli-mngeni ekhoyo kwesi sithethe. Isahluko sesine, singolwaluko ngemihla yamandulo size sithelekiswe nale mihla siphila kuyo. Iingxaki ezikhoyo kweli siko ezibangelwa kukungakhathali kwengcibi, namakhankatha. Esesihlanu, isahluko singamasiko nezithethe, iindlela ezazisaya kusetyenziswa mandulo kuthelekiswa nezeli xesha lokhanyo ekwenzeni la masiko nezi zithethe. Isahluko sesithandathu, sesokuphetha, siyintyilazwi yeengxoxo ezikolu hlalutyo, kuxilongwa ubuzaza besithako sobunzululwazi nkcubeko-ntlalo.
- Full Text:
- Date Issued: 2016
Ukuzotywa kwabalinganiswa ababhinqileyo abaziintloko kwiidrama zolwimi lwesiXhosa bezotywa ngababhali abasini sobuduna kwakunye nabo babhinqileyo
- Authors: Bukula, Andiswa
- Date: 2016
- Subjects: Xhosa literature -- Research Gender identity in literature , Gender nonconformity Women -- South Africa -- Drama
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/18431 , vital:28645
- Description: Eli phepha lithiywe “Ukuzotywa kwabalinganiswa ababhinqileyo, abazintloko kwidrama zolwimi lwesiXhosa, bezotywa ngababhali besini sobuduna nesini sobukhomokazi liza kube lijongene nendlela apho ababhali abasini esohlukileyo, abathi babazobe ngayo abalinganiswa abayintloko, abangamabhinqa kwizibhalo zabo zedrama zelwimi lwesiXhosa. Apha kuzobe kujongwe ingakumbi ababhali abasini sobuduna, ngenjongo yokuveza umba wokuba ababhali besini sobukhomokazi babazoba abalinganiswa ababhinqileyo nje ngabantu abangenamiqolo okuzimela ngaphandle kokuba kubekho indoda obomini babo. Aba babhali babazoba abalinganiswa ababhiqileyo phansti kwala ngcamango yokuba, apho umntu obhinqileyo ekumela afumaneke khona kusezimbizeni apho baphekela usapho lwabo rhoqo, ekucoceni umzi nasekukhuliseni abantwana, hayi enye into engaphaya koko. Ngoko ke eli phepha libhalwe ngenjongo yokuphelisa oku dodobalisa loo ngcamango. Baninzi kea bantu abaphikisana nale ndlela yaphotho lwamabhinqa ngamadoda abo, nangamanye amadoda nje jikilele, eli phepha lizobe lingqinelana nolo ninzi lwabantu abathi loo mpatho mbi yamabhinqa mayiphele, kuvezwe imeko yokuba kukho ulingano phakathi kwamabhinqa kunye nababt abasini sobukhomakazi. Int ethetha ukuba eli phepha lizakuti ligqithele lijonge kwaye liveze indlela apho kungati kuekho ulingwano phathi kwezini zimbini, nendlela apho uwonke wonke angakwazi ukuphila ngentlonipho omnye komnye kungekho zimpatho mbi, okanye sini sinesikhundla esiphakamileyo kunesinye.
- Full Text:
- Date Issued: 2016
- Authors: Bukula, Andiswa
- Date: 2016
- Subjects: Xhosa literature -- Research Gender identity in literature , Gender nonconformity Women -- South Africa -- Drama
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/18431 , vital:28645
- Description: Eli phepha lithiywe “Ukuzotywa kwabalinganiswa ababhinqileyo, abazintloko kwidrama zolwimi lwesiXhosa, bezotywa ngababhali besini sobuduna nesini sobukhomokazi liza kube lijongene nendlela apho ababhali abasini esohlukileyo, abathi babazobe ngayo abalinganiswa abayintloko, abangamabhinqa kwizibhalo zabo zedrama zelwimi lwesiXhosa. Apha kuzobe kujongwe ingakumbi ababhali abasini sobuduna, ngenjongo yokuveza umba wokuba ababhali besini sobukhomokazi babazoba abalinganiswa ababhinqileyo nje ngabantu abangenamiqolo okuzimela ngaphandle kokuba kubekho indoda obomini babo. Aba babhali babazoba abalinganiswa ababhiqileyo phansti kwala ngcamango yokuba, apho umntu obhinqileyo ekumela afumaneke khona kusezimbizeni apho baphekela usapho lwabo rhoqo, ekucoceni umzi nasekukhuliseni abantwana, hayi enye into engaphaya koko. Ngoko ke eli phepha libhalwe ngenjongo yokuphelisa oku dodobalisa loo ngcamango. Baninzi kea bantu abaphikisana nale ndlela yaphotho lwamabhinqa ngamadoda abo, nangamanye amadoda nje jikilele, eli phepha lizobe lingqinelana nolo ninzi lwabantu abathi loo mpatho mbi yamabhinqa mayiphele, kuvezwe imeko yokuba kukho ulingano phakathi kwamabhinqa kunye nababt abasini sobukhomakazi. Int ethetha ukuba eli phepha lizakuti ligqithele lijonge kwaye liveze indlela apho kungati kuekho ulingwano phathi kwezini zimbini, nendlela apho uwonke wonke angakwazi ukuphila ngentlonipho omnye komnye kungekho zimpatho mbi, okanye sini sinesikhundla esiphakamileyo kunesinye.
- Full Text:
- Date Issued: 2016
Ultra-high precision grinding of BK7 glass
- Authors: Onwuka, Goodness Raluchukwu
- Date: 2016
- Subjects: Machining , Machine-tools -- Monitoring , Acoustic emission
- Language: English
- Type: Thesis , Masters , MEngineering
- Identifier: http://hdl.handle.net/10948/5203 , vital:20820
- Description: With the increase in the application of ultra-precision manufactured parts and the absence of much participation of researchers in ultra-high precision grinding of optical glasses which has a high rate of demand in the industries, it becomes imperative to garner a full understanding of the production of these precision optics using the above-listed technology. Single point inclined axes grinding configuration and Box-Behnken experimental design was developed and applied to the ultra-high precision grinding of BK7 glass. A high sampling acoustic emission monitoring system was implemented to monitor the process. The research tends to monitor the ultra-high precision grinding of BK7 glass using acoustic emission which has proven to be an effective sensing technique to monitor grinding processes. Response surface methodology was adopted to analyze the effect of the interaction between the machining parameters: feed, speed, depth of cut and the generated surface roughness. Furthermore, back propagation Artificial Neural Network was also implemented through careful feature extraction and selection process. The proposed models are aimed at creating a database guide to the ultra-high precision grinding of precision optics.
- Full Text:
- Date Issued: 2016
- Authors: Onwuka, Goodness Raluchukwu
- Date: 2016
- Subjects: Machining , Machine-tools -- Monitoring , Acoustic emission
- Language: English
- Type: Thesis , Masters , MEngineering
- Identifier: http://hdl.handle.net/10948/5203 , vital:20820
- Description: With the increase in the application of ultra-precision manufactured parts and the absence of much participation of researchers in ultra-high precision grinding of optical glasses which has a high rate of demand in the industries, it becomes imperative to garner a full understanding of the production of these precision optics using the above-listed technology. Single point inclined axes grinding configuration and Box-Behnken experimental design was developed and applied to the ultra-high precision grinding of BK7 glass. A high sampling acoustic emission monitoring system was implemented to monitor the process. The research tends to monitor the ultra-high precision grinding of BK7 glass using acoustic emission which has proven to be an effective sensing technique to monitor grinding processes. Response surface methodology was adopted to analyze the effect of the interaction between the machining parameters: feed, speed, depth of cut and the generated surface roughness. Furthermore, back propagation Artificial Neural Network was also implemented through careful feature extraction and selection process. The proposed models are aimed at creating a database guide to the ultra-high precision grinding of precision optics.
- Full Text:
- Date Issued: 2016
Ulwaluko kwa Xhosa: young Xhosa men's lived experiences in the context of traditional male initiation
- Authors: Siswana, Anele
- Date: 2016
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3271 , http://hdl.handle.net/10962/d1020840
- Description: This thesis explores the lived experiences of young amaXhosa men in relation to U!walukokwa Xhosa (traditional male initiation [TMI]) and its impact on their sense of masculinity. The conceptual framework of this study is located within African epistemology focusing on indigenous knowledge systems (IKS) in South Africa. The study aimed at enabling young amaXhosa men who had undergone TMI to reflect on their first-hand, personal accounts of Ulwa/ukokwa Xhosa and manhood. Six semistructured interviews and a follow up focus group discussion were held with 23-27 years old amaXhosa men residing in Joza Township in Grahamstown, Eastern Cape. Participants were identified through purposive sampling. The thesis reports on the following findings: (a) the significance of the place/location of initiation, and the guise of modernity; (b) feelings of anticipation experienced by the young men; (c) the theme on ubudoda(manhood) affirmation Ndiyindoda!; (d) the theme on the concealment of pain (perseverance); (e) the theme on respect for self and others and ubuntu;(f) Uzimelegeqe (independence and autonomy) and (g) social role and responsibility. The paper argues for the relevance of TMI as a significantrite of passage from boyhood to manhood among amaXhosa men.
- Full Text:
- Date Issued: 2016
- Authors: Siswana, Anele
- Date: 2016
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3271 , http://hdl.handle.net/10962/d1020840
- Description: This thesis explores the lived experiences of young amaXhosa men in relation to U!walukokwa Xhosa (traditional male initiation [TMI]) and its impact on their sense of masculinity. The conceptual framework of this study is located within African epistemology focusing on indigenous knowledge systems (IKS) in South Africa. The study aimed at enabling young amaXhosa men who had undergone TMI to reflect on their first-hand, personal accounts of Ulwa/ukokwa Xhosa and manhood. Six semistructured interviews and a follow up focus group discussion were held with 23-27 years old amaXhosa men residing in Joza Township in Grahamstown, Eastern Cape. Participants were identified through purposive sampling. The thesis reports on the following findings: (a) the significance of the place/location of initiation, and the guise of modernity; (b) feelings of anticipation experienced by the young men; (c) the theme on ubudoda(manhood) affirmation Ndiyindoda!; (d) the theme on the concealment of pain (perseverance); (e) the theme on respect for self and others and ubuntu;(f) Uzimelegeqe (independence and autonomy) and (g) social role and responsibility. The paper argues for the relevance of TMI as a significantrite of passage from boyhood to manhood among amaXhosa men.
- Full Text:
- Date Issued: 2016
Un Langage, des Visions, une Passerelle:
- Authors: Tshilumba Mukendi, J S
- Date: 2016
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/146177 , vital:38502 , ISBN 9789074816496 , https://books.google.co.za/books?id=QDSdAQAACAAJanddq=Creer+en+postcolonie:+Voix+et+dissidences+belgo-congolaise+2010-2015andhl=enandsa=Xandved=0ahUKEwjts_Si_b_pAhXvShUIHWXwCd4Q6AEIJzAA
- Description: Book abstract. The authors and artists (Baloji, Toma Muteba Luntumbue, Nganji Laeh, Nina Miskina, Joëlle Sambi, Sarah Arens, Heleen Debeuckelaere, Bénédicte Kumbi ...) who contributed to the work to debate the Belgian postcolonial question and it will be punctuated by poetic and musical stops.
- Full Text:
- Date Issued: 2016
- Authors: Tshilumba Mukendi, J S
- Date: 2016
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/146177 , vital:38502 , ISBN 9789074816496 , https://books.google.co.za/books?id=QDSdAQAACAAJanddq=Creer+en+postcolonie:+Voix+et+dissidences+belgo-congolaise+2010-2015andhl=enandsa=Xandved=0ahUKEwjts_Si_b_pAhXvShUIHWXwCd4Q6AEIJzAA
- Description: Book abstract. The authors and artists (Baloji, Toma Muteba Luntumbue, Nganji Laeh, Nina Miskina, Joëlle Sambi, Sarah Arens, Heleen Debeuckelaere, Bénédicte Kumbi ...) who contributed to the work to debate the Belgian postcolonial question and it will be punctuated by poetic and musical stops.
- Full Text:
- Date Issued: 2016
Understanding how grade 8 Physical Science teachers make use of learners’ prior everyday knowledge when teaching static electricity: A case study
- Authors: Iyambo, Toini
- Date: 2016
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10962/1320 , vital:20046
- Description: Over the last decade of my teaching I have been grappling with how to incorporate learners’ prior everyday knowledge into my Physical Science lessons to enable me to close the gap between school science and everyday knowledge. I conducted this case study in two schools, one in Omusati region and one in Ohangwena Region, Namibia. Its purpose was to investigate how grade 8 Physical Science teachers make use of learners’ prior everyday knowledge when teaching the topic of static electricity. Underpinned by an interpretive paradigm, the study made use of document analysis, observation (lessons were also video-taped) and semi-structured interviews to generate the data. Three data generating techniques were used for triangulation and validation purposes. To further validate the data, transcripts of video-taped lessons and interviews were sent back to the research participants for member checking. The main findings of my study are that teachers did incorporate learners’ prior knowledge in the lesson presentation on static electricity. It emerged from the study that, learners possess a great deal of prior everyday scientific and non-scientific knowledge and experiences about static electricity that they had acquired from their communities. Also, mobilization of learners' everyday knowledge and experiences about static electricity enabled learner engagement during the science lessons. Likewise, engaging learners in demonstrations on static electricity helped them to make meaning of the scientific concepts involved in the topic. It also emerged from this study that teachers face challenges of lack of documentation of indigenous knowledge which is potentially a form of prior knowledge, language barriers and a lack of resources. Based on my research findings, I therefore, recommend that learners' prior everyday knowledge and experiences about static electricity should be incorporated during the teaching and learning process.
- Full Text:
- Date Issued: 2016
- Authors: Iyambo, Toini
- Date: 2016
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10962/1320 , vital:20046
- Description: Over the last decade of my teaching I have been grappling with how to incorporate learners’ prior everyday knowledge into my Physical Science lessons to enable me to close the gap between school science and everyday knowledge. I conducted this case study in two schools, one in Omusati region and one in Ohangwena Region, Namibia. Its purpose was to investigate how grade 8 Physical Science teachers make use of learners’ prior everyday knowledge when teaching the topic of static electricity. Underpinned by an interpretive paradigm, the study made use of document analysis, observation (lessons were also video-taped) and semi-structured interviews to generate the data. Three data generating techniques were used for triangulation and validation purposes. To further validate the data, transcripts of video-taped lessons and interviews were sent back to the research participants for member checking. The main findings of my study are that teachers did incorporate learners’ prior knowledge in the lesson presentation on static electricity. It emerged from the study that, learners possess a great deal of prior everyday scientific and non-scientific knowledge and experiences about static electricity that they had acquired from their communities. Also, mobilization of learners' everyday knowledge and experiences about static electricity enabled learner engagement during the science lessons. Likewise, engaging learners in demonstrations on static electricity helped them to make meaning of the scientific concepts involved in the topic. It also emerged from this study that teachers face challenges of lack of documentation of indigenous knowledge which is potentially a form of prior knowledge, language barriers and a lack of resources. Based on my research findings, I therefore, recommend that learners' prior everyday knowledge and experiences about static electricity should be incorporated during the teaching and learning process.
- Full Text:
- Date Issued: 2016
Understanding how the incorporation of indigenous knowledge (IK) enables or constrains the teaching and learning of alcoholic fermentation in Life Sciences in Grade 11
- Authors: Mutanho, Chrispen
- Date: 2016
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10962/1264 , vital:20041
- Description: There is growing interest in the role of indigenous knowledge (IK) in science education in many parts of the world. In South Africa, this comes against the backdrop of a long history of cultural alienation, neglect and suppression of the IK of the indigenous people by colonial governments. Hence, the first post-independence National Curriculum Policy Statement (Curriculum, 2005) and its subsequent modified versions emphasised the need to redress the imbalances of the past so as to make science accessible to learners from diverse cultural backgrounds. However, literature reveals that the efforts to implement an IK-based curriculum are constrained by the lack of clarity, knowledge and skills on how to effectively make use of IK in the classroom situation so as to bring about effective teaching and learning. Against this background, this study sought to understand how the incorporation of IK enables or constrains the teaching and learning of alcoholic fermentation. Underpinned by an interpretive paradigm, a qualitative case study was conducted at a high school in Mthatha District in the Eastern Cape Province of South Africa. The study comprised of a sample of ten Life Sciences teachers from four neighbouring high schools, two Grade 11 Life Sciences teachers and their classes and two focus groups of six learners from each class. Convenience and purposive sampling were used to select the participants and the research site. The study made use of a questionnaire, document analysis, lesson observation, stimulated recall interviews and focus group interviews to generate data. The questionnaire sought to get an overview of Life Sciences teachers’ attitudes, opinions and experiences on incorporating IK in science teaching. The data gathered were then used as baseline information to inform the main study. The lesson observations, stimulated recall interviews and the focus group interviews sought to understand how the incorporation of IK enables or constrains the teaching and learning of alcoholic fermentation. Document analysis, lesson observation, stimulated recall interviews and focus group interviews were conducted to understand the experience of incorporating IK in a real life classroom situation. The study was informed by Vygotsky’s socio-cultural constructivism and Shulman’s pedagogical content knowledge (PCK) theory. From Vygotsky’s theory I borrowed the idea of mediated learning, scaffolding (Bruner, 1986), zone of proximal development (ZPD), as well as the use of language and cultural artefacts as tools of analysis of the classroom interaction between the teacher and the learners during the teaching-learning process. Shulman’s theory of PCK was also used to analyse how teachers apply IK in teaching Science. The data obtained were coded inductively and presented in tables, graphs and thick descriptive texts to make it easy to understand. The findings of this research show that incorporating IK improved the teaching-learning process by arousing learners’ interest in science, increasing learners’ participation and motivation, meaning making, language use, questioning and engagement in the learning process. Teaching became learner-centred, for it was directed by learners’ questions. Collaborative learning through group discussions, debates, arguments and brainstorming emerged to be an effective way of engaging learners in learning. The teachers used probing to encourage critical thinking before scaffolding learners. However, even though teachers generally accept IK as valuable in their teaching they lack the pedagogical content knowledge to effectively incorporate it into meaningful teaching and learning. Furthermore, teachers viewed cultural diversity as a constraint to their efforts to incorporate IK in teaching science. On the contrary, their learners held the view that having cultural diversity in classrooms created an opportunity to learn from other people’s cultures. Variables such as experience and difference in the cultural background of learners and teachers alike, tended to affect the teachers’ ability to incorporate IK.
- Full Text:
- Date Issued: 2016
- Authors: Mutanho, Chrispen
- Date: 2016
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10962/1264 , vital:20041
- Description: There is growing interest in the role of indigenous knowledge (IK) in science education in many parts of the world. In South Africa, this comes against the backdrop of a long history of cultural alienation, neglect and suppression of the IK of the indigenous people by colonial governments. Hence, the first post-independence National Curriculum Policy Statement (Curriculum, 2005) and its subsequent modified versions emphasised the need to redress the imbalances of the past so as to make science accessible to learners from diverse cultural backgrounds. However, literature reveals that the efforts to implement an IK-based curriculum are constrained by the lack of clarity, knowledge and skills on how to effectively make use of IK in the classroom situation so as to bring about effective teaching and learning. Against this background, this study sought to understand how the incorporation of IK enables or constrains the teaching and learning of alcoholic fermentation. Underpinned by an interpretive paradigm, a qualitative case study was conducted at a high school in Mthatha District in the Eastern Cape Province of South Africa. The study comprised of a sample of ten Life Sciences teachers from four neighbouring high schools, two Grade 11 Life Sciences teachers and their classes and two focus groups of six learners from each class. Convenience and purposive sampling were used to select the participants and the research site. The study made use of a questionnaire, document analysis, lesson observation, stimulated recall interviews and focus group interviews to generate data. The questionnaire sought to get an overview of Life Sciences teachers’ attitudes, opinions and experiences on incorporating IK in science teaching. The data gathered were then used as baseline information to inform the main study. The lesson observations, stimulated recall interviews and the focus group interviews sought to understand how the incorporation of IK enables or constrains the teaching and learning of alcoholic fermentation. Document analysis, lesson observation, stimulated recall interviews and focus group interviews were conducted to understand the experience of incorporating IK in a real life classroom situation. The study was informed by Vygotsky’s socio-cultural constructivism and Shulman’s pedagogical content knowledge (PCK) theory. From Vygotsky’s theory I borrowed the idea of mediated learning, scaffolding (Bruner, 1986), zone of proximal development (ZPD), as well as the use of language and cultural artefacts as tools of analysis of the classroom interaction between the teacher and the learners during the teaching-learning process. Shulman’s theory of PCK was also used to analyse how teachers apply IK in teaching Science. The data obtained were coded inductively and presented in tables, graphs and thick descriptive texts to make it easy to understand. The findings of this research show that incorporating IK improved the teaching-learning process by arousing learners’ interest in science, increasing learners’ participation and motivation, meaning making, language use, questioning and engagement in the learning process. Teaching became learner-centred, for it was directed by learners’ questions. Collaborative learning through group discussions, debates, arguments and brainstorming emerged to be an effective way of engaging learners in learning. The teachers used probing to encourage critical thinking before scaffolding learners. However, even though teachers generally accept IK as valuable in their teaching they lack the pedagogical content knowledge to effectively incorporate it into meaningful teaching and learning. Furthermore, teachers viewed cultural diversity as a constraint to their efforts to incorporate IK in teaching science. On the contrary, their learners held the view that having cultural diversity in classrooms created an opportunity to learn from other people’s cultures. Variables such as experience and difference in the cultural background of learners and teachers alike, tended to affect the teachers’ ability to incorporate IK.
- Full Text:
- Date Issued: 2016
Understanding sexual concurrency and HIV/AIDS: implicit and explicit attitudes in a South African student population
- Authors: Malataliana, Maleeto Lucy
- Date: 2016
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/3335 , vital:20484
- Description: There are more people infected with HIV in South Africa, than in any other country in the world. Studies indicate a plausible relationship between concurrently organised sexual partnership and the spread of STIs, with concurrency being accountable for as much as 74% of HIV infections in South Africa. Understanding sexual concurrency is therefore of vital importance, especially in the South African perspective. It has, however, become increasingly unreliable to rely solely on explicit self-measures to study sexual concurrency, and research has suggested that implicit cognition is a reliable alternative to understanding sexual behaviour and attitudes towards sexuality, which cannot be directly measured by explicit means. The purpose of this study was to understand sexual concurrency among a population of university students by researching their implicit and explicit attitudes towards sexual concurrency; and thereby to aid in understanding sexual concurrency in relation to the spread of HIV. A quantitative research methodology was used to analyse results from explicit measures of sexual concurrency in the form of a questionnaire, and implicit measures of sexual concurrency in the form of the Implicit Association Test (IAT). Although no correlation existed between implicit and explicit measures attitudes towards sexual concurrency, it was, however, observed that sexual concurrency has and is being broadly practiced, and that age is a key determinant for sexual concurrency.
- Full Text:
- Date Issued: 2016
- Authors: Malataliana, Maleeto Lucy
- Date: 2016
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/3335 , vital:20484
- Description: There are more people infected with HIV in South Africa, than in any other country in the world. Studies indicate a plausible relationship between concurrently organised sexual partnership and the spread of STIs, with concurrency being accountable for as much as 74% of HIV infections in South Africa. Understanding sexual concurrency is therefore of vital importance, especially in the South African perspective. It has, however, become increasingly unreliable to rely solely on explicit self-measures to study sexual concurrency, and research has suggested that implicit cognition is a reliable alternative to understanding sexual behaviour and attitudes towards sexuality, which cannot be directly measured by explicit means. The purpose of this study was to understand sexual concurrency among a population of university students by researching their implicit and explicit attitudes towards sexual concurrency; and thereby to aid in understanding sexual concurrency in relation to the spread of HIV. A quantitative research methodology was used to analyse results from explicit measures of sexual concurrency in the form of a questionnaire, and implicit measures of sexual concurrency in the form of the Implicit Association Test (IAT). Although no correlation existed between implicit and explicit measures attitudes towards sexual concurrency, it was, however, observed that sexual concurrency has and is being broadly practiced, and that age is a key determinant for sexual concurrency.
- Full Text:
- Date Issued: 2016
Unpacking Pandora’s box: Understanding and categorising ecosystem disservices for environmental management and human wellbeing
- Shackleton, Charlie M, Ruwanza, Sheunesu, Sinasson Sanni, Gisele, Bennett, S, De Lacy, Peter, Modipa, Rebone D, Mtati, Nosiseko, Sachikonye, Mwazvita T B, Thondhlana, Gladman
- Authors: Shackleton, Charlie M , Ruwanza, Sheunesu , Sinasson Sanni, Gisele , Bennett, S , De Lacy, Peter , Modipa, Rebone D , Mtati, Nosiseko , Sachikonye, Mwazvita T B , Thondhlana, Gladman
- Date: 2016
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/182113 , vital:43801 , xlink:href="https://doi.org/10.1007/s10021-015-9952-z"
- Description: Research into the benefits that ecosystems contribute to human wellbeing has multiplied over the last few years following from the seminal contributions of the international Millennium Ecosystem Assessment. In comparison, the fact that some ecosystem goods and services undermine or harm human wellbeing has been seriously overlooked. These negative impacts have become known as ecosystem disservices. The neglect of ecosystem disservices is problematic because investments into the management or reduction of ecosystem disservices may yield better outcomes for human wellbeing, or at a lower investment, than management of ecosystem services. Additionally, management to optimise specific ecosystem services may simultaneously exacerbate associated disservices. We posit that one reason for the neglect of ecosystem disservices from the discourse and policy debates around ecosystems and human wellbeing is because there is no widely accepted definition or typology of ecosystem disservices. Here, we briefly examine current understandings of the term ecosystem disservices and offer a definition and a working typology to help generate debate, policy and management options around ecosystem disservices. We differentiate ecosystem disservices from natural hazards and social hazards, consider some of their inherent properties and then classify them into six categories. A variety of examples are used to illustrate the different types of, and management strategies to, ecosystem disservices.
- Full Text:
- Date Issued: 2016
- Authors: Shackleton, Charlie M , Ruwanza, Sheunesu , Sinasson Sanni, Gisele , Bennett, S , De Lacy, Peter , Modipa, Rebone D , Mtati, Nosiseko , Sachikonye, Mwazvita T B , Thondhlana, Gladman
- Date: 2016
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/182113 , vital:43801 , xlink:href="https://doi.org/10.1007/s10021-015-9952-z"
- Description: Research into the benefits that ecosystems contribute to human wellbeing has multiplied over the last few years following from the seminal contributions of the international Millennium Ecosystem Assessment. In comparison, the fact that some ecosystem goods and services undermine or harm human wellbeing has been seriously overlooked. These negative impacts have become known as ecosystem disservices. The neglect of ecosystem disservices is problematic because investments into the management or reduction of ecosystem disservices may yield better outcomes for human wellbeing, or at a lower investment, than management of ecosystem services. Additionally, management to optimise specific ecosystem services may simultaneously exacerbate associated disservices. We posit that one reason for the neglect of ecosystem disservices from the discourse and policy debates around ecosystems and human wellbeing is because there is no widely accepted definition or typology of ecosystem disservices. Here, we briefly examine current understandings of the term ecosystem disservices and offer a definition and a working typology to help generate debate, policy and management options around ecosystem disservices. We differentiate ecosystem disservices from natural hazards and social hazards, consider some of their inherent properties and then classify them into six categories. A variety of examples are used to illustrate the different types of, and management strategies to, ecosystem disservices.
- Full Text:
- Date Issued: 2016
Uphicotho nzulu lwendima yepragmatiki ekuphononongeni incwadi ezikhethiweyo zesiXhosa
- Authors: Cutalele, Pumla Pamella
- Date: 2016
- Subjects: Xhosa literature , Pragmatics , Translating and interpreting
- Language: Xhosa
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/5442 , vital:20845
- Description: Olu phando luqwalasela indima yepragmatiki ekuphononongeni iincwadi ezikhethiweyo zesiXhosa. Isahluko sokuqala sinika okuqulathwe lolu phando, iinjongo zolu phando nezibe ngunobangela wokuba kukhethwe esi sihloko, imethodi yophando, imo yophando, ulwakhiwo lophando nalapho kukrotyiswa kokuqulathwe sisahluko ngasinye. Uphengululo lweencwadi lwenziwe eziqulathe umxholo wepragmatiki lwenziwe kwakuso esi sahluko. Ingcaciso yamagama aya kuthi asetyenziswe rhoqo inikiwe kwakuso esi sahluko Isahluko sesibini sijonga nzulu iingcingane eziya kuthi zisetyenziswe njengesikhokelo ekwenzeni olu phando. Ingcingane yolwimi kunye nengcingane yoncwadi zijongiwe kwesi sahluko. Ingcingane zepragmatiki eziquka leyo kaGrice nengundoqo kwipragmatiki nayo ithe yaqwalaselwa. Le ngcingane iye izise iindidi zeentsingiselo namasolotya azo. Ingcingane kaGrice ethi iphuhlise intsingiselo efihlakeleyo, intsingiselo ethe ngqo kunye nocingelo ziya- jongwa gabalala kwesi sahluko. Ingcingane yentetho ntshukumo iya kuthi ijongwe ze kujongwe nonxibelelo lwayo kuncwadi. Isahluko sesithathu sijonga nzulu ukusetyenziswa kwentsingisselo efihlakeleyo kwiincwadi ezikhethelwe esi sifundo. Umgaqo wonxibelelwano nezaci zawo ezizezi; isaci somgangatho, isaci sokungakanani, isaci sonxulumano kunye nesaci sobunjani zijongiwe kwiintetho zabalinganiswa nakwizimvo zombhali. Isaci esizihambelayo nesivela kakhulu ngokusetyenziswa kwesigqebelo namaqhalo naso sithe sajongwa ngokubhekiselele kwiincwadi ezikhethelwe esi sifundo.Isahluko sesine siqwalasele ukusetyenziswa kocingelo. Ucingelo nelilelinye isolotya lepragmatiki. Iindidi zocingelo zithe zajongwa, nezizezi: ucingelo lokukhoyo nokunokwenzeka, ucingelo lokuqonda, ucingelo lonobangela nesiphumo kunye nocingelo lwezichazi nezihlomelo. Izichukumisi zocingelo zijongiwe kugxilwe kwiincwadi zesiXhosa ezikhwethelwe esi sifundo. Isahluko sesihlanu siqwalasele intsingiselo ethe ngqo. Imiba yentsingiselo ethe ngqo efana nokuzigqibela, ukuvala isikhewu, ukunqanda ubumbaxa kunye nokusetyenziswa kwemiqondiso kuthe kwaqwalaselwa kwesi sahluko. Indlela ethe ngqo abalinganiswa abathile abathiywe ngayo ngababhali kwiincwadi ezikhethelwe esi sifundo iye izise intsingiselo ethe ngqo, oko ke kuthe kwaqwalaselwa kwesi sahluko.
- Full Text:
- Date Issued: 2016
- Authors: Cutalele, Pumla Pamella
- Date: 2016
- Subjects: Xhosa literature , Pragmatics , Translating and interpreting
- Language: Xhosa
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/5442 , vital:20845
- Description: Olu phando luqwalasela indima yepragmatiki ekuphononongeni iincwadi ezikhethiweyo zesiXhosa. Isahluko sokuqala sinika okuqulathwe lolu phando, iinjongo zolu phando nezibe ngunobangela wokuba kukhethwe esi sihloko, imethodi yophando, imo yophando, ulwakhiwo lophando nalapho kukrotyiswa kokuqulathwe sisahluko ngasinye. Uphengululo lweencwadi lwenziwe eziqulathe umxholo wepragmatiki lwenziwe kwakuso esi sahluko. Ingcaciso yamagama aya kuthi asetyenziswe rhoqo inikiwe kwakuso esi sahluko Isahluko sesibini sijonga nzulu iingcingane eziya kuthi zisetyenziswe njengesikhokelo ekwenzeni olu phando. Ingcingane yolwimi kunye nengcingane yoncwadi zijongiwe kwesi sahluko. Ingcingane zepragmatiki eziquka leyo kaGrice nengundoqo kwipragmatiki nayo ithe yaqwalaselwa. Le ngcingane iye izise iindidi zeentsingiselo namasolotya azo. Ingcingane kaGrice ethi iphuhlise intsingiselo efihlakeleyo, intsingiselo ethe ngqo kunye nocingelo ziya- jongwa gabalala kwesi sahluko. Ingcingane yentetho ntshukumo iya kuthi ijongwe ze kujongwe nonxibelelo lwayo kuncwadi. Isahluko sesithathu sijonga nzulu ukusetyenziswa kwentsingisselo efihlakeleyo kwiincwadi ezikhethelwe esi sifundo. Umgaqo wonxibelelwano nezaci zawo ezizezi; isaci somgangatho, isaci sokungakanani, isaci sonxulumano kunye nesaci sobunjani zijongiwe kwiintetho zabalinganiswa nakwizimvo zombhali. Isaci esizihambelayo nesivela kakhulu ngokusetyenziswa kwesigqebelo namaqhalo naso sithe sajongwa ngokubhekiselele kwiincwadi ezikhethelwe esi sifundo.Isahluko sesine siqwalasele ukusetyenziswa kocingelo. Ucingelo nelilelinye isolotya lepragmatiki. Iindidi zocingelo zithe zajongwa, nezizezi: ucingelo lokukhoyo nokunokwenzeka, ucingelo lokuqonda, ucingelo lonobangela nesiphumo kunye nocingelo lwezichazi nezihlomelo. Izichukumisi zocingelo zijongiwe kugxilwe kwiincwadi zesiXhosa ezikhwethelwe esi sifundo. Isahluko sesihlanu siqwalasele intsingiselo ethe ngqo. Imiba yentsingiselo ethe ngqo efana nokuzigqibela, ukuvala isikhewu, ukunqanda ubumbaxa kunye nokusetyenziswa kwemiqondiso kuthe kwaqwalaselwa kwesi sahluko. Indlela ethe ngqo abalinganiswa abathile abathiywe ngayo ngababhali kwiincwadi ezikhethelwe esi sifundo iye izise intsingiselo ethe ngqo, oko ke kuthe kwaqwalaselwa kwesi sahluko.
- Full Text:
- Date Issued: 2016
Urban agriculture and access to microfinance in Snake Park, Zimbabwe
- Authors: Makoni, Charmaine Tafadzwa
- Date: 2016
- Subjects: Urban agriculture -- Zimbabwe , Economic development -- Zimbabwe -- Finance , Economic development projects -- Zimbabwe -- Finance
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/8099 , vital:24993
- Description: The role that urban farming plays in the food supply of cities and towns to compliment rural agriculture is increasingly gaining traction. In Zimbabwe, urban agriculture has equally become an important contributor of urban food, particularly for low income households. Urban agriculture is increasingly being viewed as a viable measure to ameliorate urban food insecurity. In spite of the important role it serves in the urban landscape, it is yet to attain political legitimacy and more importantly to gain recognition from the formal financial economy. This in turn has limited the contribution that the urban agriculture can make towards poverty alleviation and inequality for the urban poor. Access to finance and lines of credit for the urban poor can have a significant impact towards not only their agricultural productivity but also their ability to weather economic shocks. This study therefore sought to investigate factors that limit access of small scale urban farmers to agricultural microcredit. The findings of this study are derived from qualitative and quantitative data collected from small scale urban farmers in Snake Park and key informant interviews conducted in Harare, Zimbabwe. The study establishes that the lack of information on credit opportunities, loan apathy and too high interest rates were some of the reasons divulged by farmers in not seeking credit from financial institutions. The results reveal that married women have an added constraint to accessing finance by virtue of husband being head of the house, mean that they hold power to cede assets as collateral. The findings from the financial institution indicated that though the majority of firms focused on large scale commercial farming ventures, some did offer microcredit for small scale urban farmers. The results also showed that though collateral facilitated access to credit and finance for urban agriculture, proven business record, group solidarity (a form of guarantee) and character were equally important. The study recommends amongst others that farmers form groups and embark on savings schemes. Added to this, bankers and farmer associations need to meet to arrive at realistic forms of security for small loans.
- Full Text:
- Date Issued: 2016
- Authors: Makoni, Charmaine Tafadzwa
- Date: 2016
- Subjects: Urban agriculture -- Zimbabwe , Economic development -- Zimbabwe -- Finance , Economic development projects -- Zimbabwe -- Finance
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/8099 , vital:24993
- Description: The role that urban farming plays in the food supply of cities and towns to compliment rural agriculture is increasingly gaining traction. In Zimbabwe, urban agriculture has equally become an important contributor of urban food, particularly for low income households. Urban agriculture is increasingly being viewed as a viable measure to ameliorate urban food insecurity. In spite of the important role it serves in the urban landscape, it is yet to attain political legitimacy and more importantly to gain recognition from the formal financial economy. This in turn has limited the contribution that the urban agriculture can make towards poverty alleviation and inequality for the urban poor. Access to finance and lines of credit for the urban poor can have a significant impact towards not only their agricultural productivity but also their ability to weather economic shocks. This study therefore sought to investigate factors that limit access of small scale urban farmers to agricultural microcredit. The findings of this study are derived from qualitative and quantitative data collected from small scale urban farmers in Snake Park and key informant interviews conducted in Harare, Zimbabwe. The study establishes that the lack of information on credit opportunities, loan apathy and too high interest rates were some of the reasons divulged by farmers in not seeking credit from financial institutions. The results reveal that married women have an added constraint to accessing finance by virtue of husband being head of the house, mean that they hold power to cede assets as collateral. The findings from the financial institution indicated that though the majority of firms focused on large scale commercial farming ventures, some did offer microcredit for small scale urban farmers. The results also showed that though collateral facilitated access to credit and finance for urban agriculture, proven business record, group solidarity (a form of guarantee) and character were equally important. The study recommends amongst others that farmers form groups and embark on savings schemes. Added to this, bankers and farmer associations need to meet to arrive at realistic forms of security for small loans.
- Full Text:
- Date Issued: 2016