The Karoo igneous province: an introduction
- Eales, Hugh V, Marsh, Julian S, Cox, K G
- Authors: Eales, Hugh V , Marsh, Julian S , Cox, K G
- Date: 1984
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/133945 , vital:37043 , http://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetailamp;idt=6519910
- Description: The Karoo rocks are amongst the earliest manifestations of igneous activity accompanying the break-up of Gondwanaland during the early Mesozoic. Remnants of the once extensive lava sequence and the associated dolerite sills are found throughout southern Africa south of latitude 150S, the present outcrop being ca. 140,000 km². The main peak of volcanic activity is dated at about 190 m.y. and is probably coincident with the earliest stages of the opening of the Indian Ocean by the separation of Antarctica from southern Africa.
- Full Text:
- Date Issued: 1984
- Authors: Eales, Hugh V , Marsh, Julian S , Cox, K G
- Date: 1984
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/133945 , vital:37043 , http://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetailamp;idt=6519910
- Description: The Karoo rocks are amongst the earliest manifestations of igneous activity accompanying the break-up of Gondwanaland during the early Mesozoic. Remnants of the once extensive lava sequence and the associated dolerite sills are found throughout southern Africa south of latitude 150S, the present outcrop being ca. 140,000 km². The main peak of volcanic activity is dated at about 190 m.y. and is probably coincident with the earliest stages of the opening of the Indian Ocean by the separation of Antarctica from southern Africa.
- Full Text:
- Date Issued: 1984
New Unity Movement Presidential Address
- Date: 2003-04
- Subjects: Government, Resistance to -- South Africa , South Africa -- History -- 20th century , South Africa -- Politics and government
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10948/32530 , vital:32124 , Bulk File 7
- Description: Presidential Addresses were delivered at each Annual conference of the New Unity Movement. This collection, though incomplete, has 18 items ranging from 1989 to 2013.
- Full Text: false
- Date Issued: 2003-04
- Date: 2003-04
- Subjects: Government, Resistance to -- South Africa , South Africa -- History -- 20th century , South Africa -- Politics and government
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10948/32530 , vital:32124 , Bulk File 7
- Description: Presidential Addresses were delivered at each Annual conference of the New Unity Movement. This collection, though incomplete, has 18 items ranging from 1989 to 2013.
- Full Text: false
- Date Issued: 2003-04
Urban foraging: land management policy, perspectives, and potential
- Sardeshpande, Mallika, Shackleton, Charlie M
- Authors: Sardeshpande, Mallika , Shackleton, Charlie M
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/149384 , vital:38845 , https://0-doi.org.wam.seals.ac.za/10.1371/journal.pone.0230693
- Description: Gathering of uncultivated food from green spaces, also known as foraging, is observed in urban areas across the world, but the literature focuses predominantly on the global north. Our study examines the existing urban land management structure and its approach to urban foraging in the eastern coastal region of South Africa. Through interviews with municipal officials in nine cities, we identified different stakeholders and their roles in urban green space management. We then used network analysis to represent interactions and influence of these stakeholders, and environmental worldviews to determine organisational and perceptual barriers to and enablers of foraging in urban green spaces. The policy on urban green space management, as well as land managers themselves are amenable to the concept of foraging in public spaces. Lack of knowledge on wild indigenous species and sustainable offtake, ambiguous, coarse, or lacking policy, and normative views of pristine nature may hinder foraging. We recommend pathways for policy and stakeholder partnerships to incorporate sustainable foraging in their biodiversity conservation and land stewardship strategies.
- Full Text:
- Date Issued: 2020
- Authors: Sardeshpande, Mallika , Shackleton, Charlie M
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/149384 , vital:38845 , https://0-doi.org.wam.seals.ac.za/10.1371/journal.pone.0230693
- Description: Gathering of uncultivated food from green spaces, also known as foraging, is observed in urban areas across the world, but the literature focuses predominantly on the global north. Our study examines the existing urban land management structure and its approach to urban foraging in the eastern coastal region of South Africa. Through interviews with municipal officials in nine cities, we identified different stakeholders and their roles in urban green space management. We then used network analysis to represent interactions and influence of these stakeholders, and environmental worldviews to determine organisational and perceptual barriers to and enablers of foraging in urban green spaces. The policy on urban green space management, as well as land managers themselves are amenable to the concept of foraging in public spaces. Lack of knowledge on wild indigenous species and sustainable offtake, ambiguous, coarse, or lacking policy, and normative views of pristine nature may hinder foraging. We recommend pathways for policy and stakeholder partnerships to incorporate sustainable foraging in their biodiversity conservation and land stewardship strategies.
- Full Text:
- Date Issued: 2020
Feasibility Study: Imagining A Cultural/Healing Centre for the Northern Areas of Nelson Mandela Bay: Community Dialogues, stakeholders' process and experts' input - two detailed reports
- Date: 2016-10
- Subjects: South Africa -- History -- 20th century , Government, Resistance to -- South Africa , South Africa -- Politics and government
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10948/41348 , vital:36452 , Bulk File 7
- Description: The Northern Areas History and Heritage Project consists of a variety workshops and materials examining the history of this part of Port Elizabeth to which people of colour had been removed in the 1970s. The materials include a book and DVD on the Northern Areas Uprising; six booklets entitled ‘Feasibility Study: Imagining a Cultural/ Healing Centre for the Northern Areas of Nelson Mandela Bay’ covering topics such as the Northern Areas Uprising, healing through memorialisation, architecture, non-profit organisations, archives and databases; 35 DVDs consisting of interviews with individuals, communities and focus groups, as well as a Winter School Project on Apartheid and the Group Areas Act. Also included are two maps relating to the area’s history.
- Full Text: false
- Date Issued: 2016-10
- Date: 2016-10
- Subjects: South Africa -- History -- 20th century , Government, Resistance to -- South Africa , South Africa -- Politics and government
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10948/41348 , vital:36452 , Bulk File 7
- Description: The Northern Areas History and Heritage Project consists of a variety workshops and materials examining the history of this part of Port Elizabeth to which people of colour had been removed in the 1970s. The materials include a book and DVD on the Northern Areas Uprising; six booklets entitled ‘Feasibility Study: Imagining a Cultural/ Healing Centre for the Northern Areas of Nelson Mandela Bay’ covering topics such as the Northern Areas Uprising, healing through memorialisation, architecture, non-profit organisations, archives and databases; 35 DVDs consisting of interviews with individuals, communities and focus groups, as well as a Winter School Project on Apartheid and the Group Areas Act. Also included are two maps relating to the area’s history.
- Full Text: false
- Date Issued: 2016-10
Regulation of the extracellular matrix by heat shock proteins and molecular chaperones:
- Boel, Natasha M-E, Edkins, Adrienne L
- Authors: Boel, Natasha M-E , Edkins, Adrienne L
- Date: 2018
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/164368 , vital:41112 , ISBN 978-3-319-69040-7 , DOI: 10.1007/978-3-319-69042-1_6
- Description: The extracellular matrix (ECM) serves as a scaffold for cells within tissues and is composed of an intricate network of glycoproteins, growth factors and matricellular proteins which cooperatively function in cell processes such as migration, adhesion and wound healing. ECM morphology is constantly undergoing remodelling (synthesis, assembly and degradation) during normal cell processes and when deregulated may contribute to disease. Heat shock proteins (Hsps) are involved in regulating processes that determine the assembly and degradation of the ECM at multiple levels, in both normal and diseased states. These roles include mediating the activation of ECM-degrading enzymes, maintaining matrix stability and clearing aggregated/misfolded proteins. Hsp may serve as chaperones and receptors or have cytokine-like functions. In this chapter, we review how Hsp90, Hsp70, Hsp40 and a number of ER resident chaperones contribute to ECM regulation. The role of the non-Hsp chaperones, SPARC and clusterin in the ECM is also discussed.
- Full Text:
- Date Issued: 2018
- Authors: Boel, Natasha M-E , Edkins, Adrienne L
- Date: 2018
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/164368 , vital:41112 , ISBN 978-3-319-69040-7 , DOI: 10.1007/978-3-319-69042-1_6
- Description: The extracellular matrix (ECM) serves as a scaffold for cells within tissues and is composed of an intricate network of glycoproteins, growth factors and matricellular proteins which cooperatively function in cell processes such as migration, adhesion and wound healing. ECM morphology is constantly undergoing remodelling (synthesis, assembly and degradation) during normal cell processes and when deregulated may contribute to disease. Heat shock proteins (Hsps) are involved in regulating processes that determine the assembly and degradation of the ECM at multiple levels, in both normal and diseased states. These roles include mediating the activation of ECM-degrading enzymes, maintaining matrix stability and clearing aggregated/misfolded proteins. Hsp may serve as chaperones and receptors or have cytokine-like functions. In this chapter, we review how Hsp90, Hsp70, Hsp40 and a number of ER resident chaperones contribute to ECM regulation. The role of the non-Hsp chaperones, SPARC and clusterin in the ECM is also discussed.
- Full Text:
- Date Issued: 2018
A Hall-effect study of as-grown and hydrogenerated n-type ZnO layers grown by MOCVD
- Somhlahlo, Nomabali Nelisiwe
- Authors: Somhlahlo, Nomabali Nelisiwe
- Date: 2006
- Subjects: Hall effect , Electric currents
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10535 , http://hdl.handle.net/10948/444 , http://hdl.handle.net/10948/d1012014 , Hall effect , Electric currents
- Description: A series of as-grown ZnO layers have been electrically characterised by the temperature dependent (20 – 300 K) Hall-effect technique. The ZnO layers were grown by metal organic chemical vapour deposition (MOCVD) on glass substrates under various growth conditions. The temperature dependent Hall-effect technique produced mobility and carrier concentration measurements. These measurements were found to be reproducible and reliable. The carrier concentration data for the layers was fitted by the charge balance equation to accurately determine the donor level and corresponding donor concentration as well as the acceptor concentration for each sample. The measured donor levels were found to vary from sample to sample and there is evidence from the results that the variations are related to the differing growth conditions of the layers. The mobility data was also fitted to establish the dominant electron scattering mechanisms in the layers. The dominant scattering mechanisms were found to vary from sample to sample. For most of the layers studied, the dominant scattering mechanism was found to be both the ionised impurity scattering at low temperatures (20 – 100 K) and grain boundary scattering at higher temperatures (100 – 300 K). The effects of exposing the ZnO layers to hydrogen plasma were also investigated by the temperature dependent Hall-effect technique. Findings indicate that hydrogen is readily incorporated in ZnO, leading always to an increased carrier concentration. It was further noted that incorporating hydrogen into ZnO in some layers increased the mobility while in other layers it caused a decrease in the mobility. The hydrogenated samples were subsequently annealed at 600 °C for 1 hour in argon ambient resulting in the carrier concentration reducing to its original value. This effect is attributed to hydrogen diffusing out of ZnO.
- Full Text:
- Date Issued: 2006
- Authors: Somhlahlo, Nomabali Nelisiwe
- Date: 2006
- Subjects: Hall effect , Electric currents
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10535 , http://hdl.handle.net/10948/444 , http://hdl.handle.net/10948/d1012014 , Hall effect , Electric currents
- Description: A series of as-grown ZnO layers have been electrically characterised by the temperature dependent (20 – 300 K) Hall-effect technique. The ZnO layers were grown by metal organic chemical vapour deposition (MOCVD) on glass substrates under various growth conditions. The temperature dependent Hall-effect technique produced mobility and carrier concentration measurements. These measurements were found to be reproducible and reliable. The carrier concentration data for the layers was fitted by the charge balance equation to accurately determine the donor level and corresponding donor concentration as well as the acceptor concentration for each sample. The measured donor levels were found to vary from sample to sample and there is evidence from the results that the variations are related to the differing growth conditions of the layers. The mobility data was also fitted to establish the dominant electron scattering mechanisms in the layers. The dominant scattering mechanisms were found to vary from sample to sample. For most of the layers studied, the dominant scattering mechanism was found to be both the ionised impurity scattering at low temperatures (20 – 100 K) and grain boundary scattering at higher temperatures (100 – 300 K). The effects of exposing the ZnO layers to hydrogen plasma were also investigated by the temperature dependent Hall-effect technique. Findings indicate that hydrogen is readily incorporated in ZnO, leading always to an increased carrier concentration. It was further noted that incorporating hydrogen into ZnO in some layers increased the mobility while in other layers it caused a decrease in the mobility. The hydrogenated samples were subsequently annealed at 600 °C for 1 hour in argon ambient resulting in the carrier concentration reducing to its original value. This effect is attributed to hydrogen diffusing out of ZnO.
- Full Text:
- Date Issued: 2006
Inequality, social comparisons and minimum income aspirations: Evidence from South Africa
- Posel, Dorrit, Rogan, Michael
- Authors: Posel, Dorrit , Rogan, Michael
- Date: 2017
- Subjects: Economic development -- South Africa South Africa -- Economic conditions South Africa -- Social policy Economic development -- Political aspects -- South Africa
- Language: English
- Type: Book , Text
- Identifier: http://hdl.handle.net/10962/59510 , vital:27621 , ISBN 9780868106359 , DOI 10.21504/10962/59509
- Description: We investigate the formation of minimum income aspirations in South Africa, a country with high rates of poverty together with very high and rising rates of inequality. A number of empirical studies in both developed and developing countries have shown that income aspirations increase with the individual’s own income and with the income of others in their community, relationships which are explained by processes of adaptation through habituation and social comparison. However, the relationship between income aspirations and inequality has received far less empirical attention. We analyse the minimum income question (MIQ) asked in nationally representative household survey from 2008/2009 to test for evidence of aspirations failure among the poor in South Africa, and to investigate whether high levels of local inequality dampen or stimulate minimum income aspirations, and particularly among those living in poverty.
- Full Text:
- Date Issued: 2017
- Authors: Posel, Dorrit , Rogan, Michael
- Date: 2017
- Subjects: Economic development -- South Africa South Africa -- Economic conditions South Africa -- Social policy Economic development -- Political aspects -- South Africa
- Language: English
- Type: Book , Text
- Identifier: http://hdl.handle.net/10962/59510 , vital:27621 , ISBN 9780868106359 , DOI 10.21504/10962/59509
- Description: We investigate the formation of minimum income aspirations in South Africa, a country with high rates of poverty together with very high and rising rates of inequality. A number of empirical studies in both developed and developing countries have shown that income aspirations increase with the individual’s own income and with the income of others in their community, relationships which are explained by processes of adaptation through habituation and social comparison. However, the relationship between income aspirations and inequality has received far less empirical attention. We analyse the minimum income question (MIQ) asked in nationally representative household survey from 2008/2009 to test for evidence of aspirations failure among the poor in South Africa, and to investigate whether high levels of local inequality dampen or stimulate minimum income aspirations, and particularly among those living in poverty.
- Full Text:
- Date Issued: 2017
Geospatial technologies and indigenous Knowledge Systems:
- Authors: Aswani, Shankar
- Date: 2016
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/145448 , vital:38439 , ISBN 9781315181523 , https://www.taylorfrancis.com/books/e/9781315181523/chapters/10.1201/9781315181523-18
- Description: During the twentieth and twenty-first centuries, pressure on coastal ecosystems has amplified and resulted in the widespread degradation of adjacent marine and terrestrial habitats globally (Burke et al., 2001). The ecosystem services provided by coastal habitats, including coastal protection and food procurement, have been heavily compromised by anthropogenic disturbance such as overfishing, pollution, sedimentation and alteration of coastal vegetation (Costanza et al., 1997; Agardy et al., 2009). In the context of small islands, this continued degradation in tandem with the ongoing effects of climate change is putting the livelihoods of coastal peoples at risk (e.g. Bell et al., 2009). While international efforts at curtailing these negative trends are ongoing, many researchers are working directly with coastal local/ indigenous communities to seek more effective management of coastal terrestrial and marine resources. Among various approaches, researchers are increasingly incorporating local knowledge systems for designing resource management and conservation plans (e.g. Gadgil et al., 1993).
- Full Text:
- Date Issued: 2016
- Authors: Aswani, Shankar
- Date: 2016
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/145448 , vital:38439 , ISBN 9781315181523 , https://www.taylorfrancis.com/books/e/9781315181523/chapters/10.1201/9781315181523-18
- Description: During the twentieth and twenty-first centuries, pressure on coastal ecosystems has amplified and resulted in the widespread degradation of adjacent marine and terrestrial habitats globally (Burke et al., 2001). The ecosystem services provided by coastal habitats, including coastal protection and food procurement, have been heavily compromised by anthropogenic disturbance such as overfishing, pollution, sedimentation and alteration of coastal vegetation (Costanza et al., 1997; Agardy et al., 2009). In the context of small islands, this continued degradation in tandem with the ongoing effects of climate change is putting the livelihoods of coastal peoples at risk (e.g. Bell et al., 2009). While international efforts at curtailing these negative trends are ongoing, many researchers are working directly with coastal local/ indigenous communities to seek more effective management of coastal terrestrial and marine resources. Among various approaches, researchers are increasingly incorporating local knowledge systems for designing resource management and conservation plans (e.g. Gadgil et al., 1993).
- Full Text:
- Date Issued: 2016
A case for the adoption of Swahili as a language of early school literacy instruction in Ekegusii-speaking areas of western Kenya:
- Mose, Peter, Kaschula, Russell H
- Authors: Mose, Peter , Kaschula, Russell H
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/174645 , vital:42497 , https://www.njas.fi/njas/article/view/433
- Description: Swahili, a national and official language in Kenya, is in wide use in the country as an inter-ethnic medium of communication and, generally, as a lingua franca. The operative language policy for lower primary–up to grade three–provides for the use of languages of the catchment as languages of instruction. The languages of the catchment refer to the more than 42 indigenous languages spoken in the country. The purpose of this study was to determine and discuss institutional and extra-institutional factors that might favour adoption of Swahili as the best medium–in the current sociolinguistic realities–in the ‘language-of-the-catchment-based’ literacy learning in Ekegusii-speaking areas of western Kenya. Data were obtained through classroom observations, teacher and church leaders’ interviews, observation and analysis of language trends at church worship services, and critical literature review.
- Full Text:
- Date Issued: 2019
- Authors: Mose, Peter , Kaschula, Russell H
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/174645 , vital:42497 , https://www.njas.fi/njas/article/view/433
- Description: Swahili, a national and official language in Kenya, is in wide use in the country as an inter-ethnic medium of communication and, generally, as a lingua franca. The operative language policy for lower primary–up to grade three–provides for the use of languages of the catchment as languages of instruction. The languages of the catchment refer to the more than 42 indigenous languages spoken in the country. The purpose of this study was to determine and discuss institutional and extra-institutional factors that might favour adoption of Swahili as the best medium–in the current sociolinguistic realities–in the ‘language-of-the-catchment-based’ literacy learning in Ekegusii-speaking areas of western Kenya. Data were obtained through classroom observations, teacher and church leaders’ interviews, observation and analysis of language trends at church worship services, and critical literature review.
- Full Text:
- Date Issued: 2019
Theory and South African developmental psychology research and literature
- Authors: Macleod, Catriona I
- Date: 2009
- Language: English
- Type: Book chapter
- Identifier: vital:6300 , http://hdl.handle.net/10962/d1015326
- Description: In this chapter we shall examine the theoretical assumptions that drive developmental psychology research and literature in South Africa. The basic underlying models utilised in developmental research may be described as (a) mechanistic; (b) organismic; (c) contextual and (d) social constructionist. A description of the fundamental premises of each of these will be followed by examples of research that utilise the particular approach. In the discussion, some of the controversies that plague developmental psychology research will be highlighted.
- Full Text:
- Date Issued: 2009
- Authors: Macleod, Catriona I
- Date: 2009
- Language: English
- Type: Book chapter
- Identifier: vital:6300 , http://hdl.handle.net/10962/d1015326
- Description: In this chapter we shall examine the theoretical assumptions that drive developmental psychology research and literature in South Africa. The basic underlying models utilised in developmental research may be described as (a) mechanistic; (b) organismic; (c) contextual and (d) social constructionist. A description of the fundamental premises of each of these will be followed by examples of research that utilise the particular approach. In the discussion, some of the controversies that plague developmental psychology research will be highlighted.
- Full Text:
- Date Issued: 2009
The South African constitutional court and the rule of law: the Masethla judgment, a cause for concern?
- Authors: Krüger, Rósaan
- Date: 2010
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/68930 , vital:29340 , http://ref.scielo.org/22p54n
- Description: Publisher version , The rule of law as a foundational constitutional value constrains the exercise of public power but the precise limits of the constraints it sets are not well defined. In Masethla v President of the Republic of South Africa, the majority of the Constitutional Court opted for an interpretation of this value that frees the President from adherence to the demands of procedural fairness when exercising certain constitutional powers. This note will investigate the soundness of that interpretation against the background of theoretical expositions of the rule of law and earlier Constitutional Court judgments.
- Full Text:
- Date Issued: 2010
- Authors: Krüger, Rósaan
- Date: 2010
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/68930 , vital:29340 , http://ref.scielo.org/22p54n
- Description: Publisher version , The rule of law as a foundational constitutional value constrains the exercise of public power but the precise limits of the constraints it sets are not well defined. In Masethla v President of the Republic of South Africa, the majority of the Constitutional Court opted for an interpretation of this value that frees the President from adherence to the demands of procedural fairness when exercising certain constitutional powers. This note will investigate the soundness of that interpretation against the background of theoretical expositions of the rule of law and earlier Constitutional Court judgments.
- Full Text:
- Date Issued: 2010
Comprehension and production of figurative language by Afrikaans-speaking children with and without specific language impairment
- van der Merwe, Kristin, Adendorff, Ralph
- Authors: van der Merwe, Kristin , Adendorff, Ralph
- Date: 2012
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/123442 , vital:35438 , https://doi.org/10.2989/16073614.2012.693708
- Description: This article reports on the comprehension and production of figurative language, namely idioms and similes, in first language Afrikaans-speaking (AFR) boys, ages eight to 10 years, and first language Afrikaans-speaking boys with specific language impairment (SLI), also ages eight to 10. It draws on a larger study by Van der Merwe (2007; see also Van der Merwe & Southwood, 2008). Testing of the comprehension and production abilities of the children was conducted verbally and individually and elicited their understanding of 25 idioms and 25 similes. The idioms were first presented without context; if the child gave an incorrect interpretation, the idiom was placed in context. Raw scores show that the SLI group performed marginally more poorly than the AFR group, but there was no statistically significant difference between the comprehension of idioms by the two groups. The same can be said for the number of literal interpretations provided by the groups. Placing the idioms in context was beneficial to both groups. The simile completion task required the children to provide the last word of each simile. For both groups, the similes task proved to be easier than the idioms task but there was again no statistically significant difference found between the two groups. The results seem to imply that children at this developmental phase, aged eight to 10, whether language impaired or not, have not yet fully grasped figurative language as a concept and need explicit instructions on figurative language. The article ends with a reflection on the suitability of idioms and similes as particular categories of figurative language in studies of this nature.
- Full Text:
- Date Issued: 2012
- Authors: van der Merwe, Kristin , Adendorff, Ralph
- Date: 2012
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/123442 , vital:35438 , https://doi.org/10.2989/16073614.2012.693708
- Description: This article reports on the comprehension and production of figurative language, namely idioms and similes, in first language Afrikaans-speaking (AFR) boys, ages eight to 10 years, and first language Afrikaans-speaking boys with specific language impairment (SLI), also ages eight to 10. It draws on a larger study by Van der Merwe (2007; see also Van der Merwe & Southwood, 2008). Testing of the comprehension and production abilities of the children was conducted verbally and individually and elicited their understanding of 25 idioms and 25 similes. The idioms were first presented without context; if the child gave an incorrect interpretation, the idiom was placed in context. Raw scores show that the SLI group performed marginally more poorly than the AFR group, but there was no statistically significant difference between the comprehension of idioms by the two groups. The same can be said for the number of literal interpretations provided by the groups. Placing the idioms in context was beneficial to both groups. The simile completion task required the children to provide the last word of each simile. For both groups, the similes task proved to be easier than the idioms task but there was again no statistically significant difference found between the two groups. The results seem to imply that children at this developmental phase, aged eight to 10, whether language impaired or not, have not yet fully grasped figurative language as a concept and need explicit instructions on figurative language. The article ends with a reflection on the suitability of idioms and similes as particular categories of figurative language in studies of this nature.
- Full Text:
- Date Issued: 2012
Palace Courtyards in Iléṣà: a melting point of traditional Yorùbá architecture
- Fọlárànmí, Stephen, Adémúlẹyá, Babásẹhìndè
- Authors: Fọlárànmí, Stephen , Adémúlẹyá, Babásẹhìndè
- Date: 2018
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/145873 , vital:38474 , https://news.clas.ufl.edu/palace-courtyards-in-ile%E1%B9%A3a-a-melting-point-of-traditional-yoruba-architecture/
- Description: The Yorùbá courtyard is an important architectural space in traditional Yorùbá architecture that has not received adequate scholarly attention. This paper examines the courtyards in the palace of certain chiefs and Ọwá Obòkun in Iléṣà, in southwest Nigeria. Fieldwork identified about ten courtyards in the palace of the Ọwá, four in the Rísàwè palace, and two in the palaces of the Léjọkà and Ọdọlé of Iléṣà. It uses these courtyards as models for courtyards in Yorùbá architecture. The study revealed that most of the courtyards in the Ọwá’s palace are generally not used for one specific function, though some are used mainly for religious purposes. The courtyards in the palaces of the chiefs are more functional, and better maintained than those of the Ọwá’s palace. The paper concludes that—considering their ancient and social function—the courtyards form a melting point within Yorùbá architecture. It suggests that efforts be made to ensure that the existing courtyards in these palaces are designated as landmark architecture and properly cared for to serve as tourist attractions.
- Full Text:
- Date Issued: 2018
- Authors: Fọlárànmí, Stephen , Adémúlẹyá, Babásẹhìndè
- Date: 2018
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/145873 , vital:38474 , https://news.clas.ufl.edu/palace-courtyards-in-ile%E1%B9%A3a-a-melting-point-of-traditional-yoruba-architecture/
- Description: The Yorùbá courtyard is an important architectural space in traditional Yorùbá architecture that has not received adequate scholarly attention. This paper examines the courtyards in the palace of certain chiefs and Ọwá Obòkun in Iléṣà, in southwest Nigeria. Fieldwork identified about ten courtyards in the palace of the Ọwá, four in the Rísàwè palace, and two in the palaces of the Léjọkà and Ọdọlé of Iléṣà. It uses these courtyards as models for courtyards in Yorùbá architecture. The study revealed that most of the courtyards in the Ọwá’s palace are generally not used for one specific function, though some are used mainly for religious purposes. The courtyards in the palaces of the chiefs are more functional, and better maintained than those of the Ọwá’s palace. The paper concludes that—considering their ancient and social function—the courtyards form a melting point within Yorùbá architecture. It suggests that efforts be made to ensure that the existing courtyards in these palaces are designated as landmark architecture and properly cared for to serve as tourist attractions.
- Full Text:
- Date Issued: 2018
Trade unions in Africa
- African Labour Researchers Network (ALRN)
- Authors: African Labour Researchers Network (ALRN)
- Date: 2003-12
- Subjects: Labour unions -- Africa
- Language: English
- Type: text , pamphlet
- Identifier: http://hdl.handle.net/10962/111142 , vital:33390
- Description: In March 2001, a group of African trade union-based researchers met in Johannesburg, South Africa, to form the African Labour Researchers Network (ALRN). The network initially covered Ghana, Nigeria, Namibia, South Africa, Zimbabwe and Zambia but has since grown and now includes Kenya, Tanzania, Malawi and Angola. One of the network's objectives is to address policy issues that affect African workers and their trade unions by providing relevant research and education materials. The first research project undertaken by the network covered the labour movement in the countries of the founding members. The researchers looked at the legal, economic and political environment in which trade unions operate and identified some of the key challenges that unions face today. This booklet is based on the country case studies that were undertaken by Austin Muneku (Zambia), Anthony yaw Baah (Ghana), Godfrey Kanyenze and Blessing Chiripanhura (Zimbabwe), Salihu Lukman (Nigeria), Herbert Jauch and Barney Karuuombe (Namibia) as well as Ravi Naidoo, Claire Horton, Thobile Yanta, Samuel Denga, Lebo Modise and Wolfe Braude (South Africa). This booklet was compiled by Herbert Jauch and Kishi-Silas Shakumu with assistance from Anthony yaw Baah. We wish to thank the Ford Foundation, the Netherlands Trade Union Federation (FNV), the Finnish Trade Union Solidarity Centre (SASK), and the Belgian Fund for Development Co-operation (FOS) for their support (direct and indirect) of the network's activities, which made the publication of this booklet possible.
- Full Text:
- Date Issued: 2003-12
- Authors: African Labour Researchers Network (ALRN)
- Date: 2003-12
- Subjects: Labour unions -- Africa
- Language: English
- Type: text , pamphlet
- Identifier: http://hdl.handle.net/10962/111142 , vital:33390
- Description: In March 2001, a group of African trade union-based researchers met in Johannesburg, South Africa, to form the African Labour Researchers Network (ALRN). The network initially covered Ghana, Nigeria, Namibia, South Africa, Zimbabwe and Zambia but has since grown and now includes Kenya, Tanzania, Malawi and Angola. One of the network's objectives is to address policy issues that affect African workers and their trade unions by providing relevant research and education materials. The first research project undertaken by the network covered the labour movement in the countries of the founding members. The researchers looked at the legal, economic and political environment in which trade unions operate and identified some of the key challenges that unions face today. This booklet is based on the country case studies that were undertaken by Austin Muneku (Zambia), Anthony yaw Baah (Ghana), Godfrey Kanyenze and Blessing Chiripanhura (Zimbabwe), Salihu Lukman (Nigeria), Herbert Jauch and Barney Karuuombe (Namibia) as well as Ravi Naidoo, Claire Horton, Thobile Yanta, Samuel Denga, Lebo Modise and Wolfe Braude (South Africa). This booklet was compiled by Herbert Jauch and Kishi-Silas Shakumu with assistance from Anthony yaw Baah. We wish to thank the Ford Foundation, the Netherlands Trade Union Federation (FNV), the Finnish Trade Union Solidarity Centre (SASK), and the Belgian Fund for Development Co-operation (FOS) for their support (direct and indirect) of the network's activities, which made the publication of this booklet possible.
- Full Text:
- Date Issued: 2003-12
Education for Sustainable Development and retention: unravelling a research agenda
- Authors: Lotz-Sisitka, Heila
- Date: 2010
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/127192 , vital:35975 , https://10.1007/s11159-010-9165-9
- Description: This paper considers the question of what education for sustainable development (ESD) research might signify when linked to the concept of “retention”, and how this relation (ESD and retention) might be researched. It considers two different perspectives on retention, as revealed through educational research trajectories, drawing on existing research and case studies. Firstly, it discusses an ESD research agenda that documents retention by focusing on the issue of keeping children in schools. This research agenda is typical of the existing discourses surrounding Education for All (EFA). It then discusses a related ESD research agenda that focuses more on the pedagogical and curricular aspects of retention, as this provides for a deeper understanding of how ESD can contribute to improving the quality of teaching and learning within a wider EFA retention agenda.
- Full Text:
- Date Issued: 2010
- Authors: Lotz-Sisitka, Heila
- Date: 2010
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/127192 , vital:35975 , https://10.1007/s11159-010-9165-9
- Description: This paper considers the question of what education for sustainable development (ESD) research might signify when linked to the concept of “retention”, and how this relation (ESD and retention) might be researched. It considers two different perspectives on retention, as revealed through educational research trajectories, drawing on existing research and case studies. Firstly, it discusses an ESD research agenda that documents retention by focusing on the issue of keeping children in schools. This research agenda is typical of the existing discourses surrounding Education for All (EFA). It then discusses a related ESD research agenda that focuses more on the pedagogical and curricular aspects of retention, as this provides for a deeper understanding of how ESD can contribute to improving the quality of teaching and learning within a wider EFA retention agenda.
- Full Text:
- Date Issued: 2010
Our society, our university, our challenges and responsibilities
- Authors: Badat, Saleem
- Date: 2006
- Language: English
- Type: Text
- Identifier: vital:574 , http://hdl.handle.net/10962/d1006567
- Description: Inaugural address of the Vice-Chancellor of Rhodes University, Dr. Saleem Badat
- Full Text:
- Date Issued: 2006
- Authors: Badat, Saleem
- Date: 2006
- Language: English
- Type: Text
- Identifier: vital:574 , http://hdl.handle.net/10962/d1006567
- Description: Inaugural address of the Vice-Chancellor of Rhodes University, Dr. Saleem Badat
- Full Text:
- Date Issued: 2006
Maximum likelihood and Bayesian approaches to stock assessment when data are questionable
- Booth, Anthony J, Quinn II, T J
- Authors: Booth, Anthony J , Quinn II, T J
- Date: 2006
- Language: English
- Type: Article
- Identifier: vital:6764 , http://hdl.handle.net/10962/d1007962
- Description: This study examines the use of age-structured maximum likelihood and Bayesian approaches for stock assessment of the Namibian monkfish, Lophius vomerinus, resource with questionable data, in which time series are short, abundance indices are variable, and research data conflict with commercial data. Bayesian approaches with both noninformative and informative priors are investigated to determine if they enhance estimation stability. Three data scenarios are assessed: commercial and research survey data, research survey data only, and commercial data only. Both statistical approaches show that resource abundance has decreased with exploitable biomass estimated at approximately 44% of pristine levels. The maximum likelihood and the Bayesian approach with noninformative priors result in similar estimates. As the abundance data contained little information pertaining to possible density dependence within the stock–recruit relationship, only a Bayesian approach with informative priors reduces uncertainty in the steepness parameter h. Estimated management quantities are sensitive both to the set of data sources and whether prior information was informative or not. The strengths of the Bayesian approach include the integration of prior information with uncertain data, the exploration of data conflicts, and the ability to show the uncertainty in estimates of management parameters. Its weakness is that estimation stability is dependent on the choice of priors, which alters some posterior distributions of management quantities.
- Full Text:
- Date Issued: 2006
- Authors: Booth, Anthony J , Quinn II, T J
- Date: 2006
- Language: English
- Type: Article
- Identifier: vital:6764 , http://hdl.handle.net/10962/d1007962
- Description: This study examines the use of age-structured maximum likelihood and Bayesian approaches for stock assessment of the Namibian monkfish, Lophius vomerinus, resource with questionable data, in which time series are short, abundance indices are variable, and research data conflict with commercial data. Bayesian approaches with both noninformative and informative priors are investigated to determine if they enhance estimation stability. Three data scenarios are assessed: commercial and research survey data, research survey data only, and commercial data only. Both statistical approaches show that resource abundance has decreased with exploitable biomass estimated at approximately 44% of pristine levels. The maximum likelihood and the Bayesian approach with noninformative priors result in similar estimates. As the abundance data contained little information pertaining to possible density dependence within the stock–recruit relationship, only a Bayesian approach with informative priors reduces uncertainty in the steepness parameter h. Estimated management quantities are sensitive both to the set of data sources and whether prior information was informative or not. The strengths of the Bayesian approach include the integration of prior information with uncertain data, the exploration of data conflicts, and the ability to show the uncertainty in estimates of management parameters. Its weakness is that estimation stability is dependent on the choice of priors, which alters some posterior distributions of management quantities.
- Full Text:
- Date Issued: 2006
Desmond Hobart Houghton Papers
- Authors: Houghton, Desmond Hobart
- Date: 2014
- Language: English
- Type: Text
- Identifier: vital:13946 , http://hdl.handle.net/10962/d1013498 , MS 20 002
- Description: Desmond Hobart Houghton (24 October 1906 – 1976) was born in Alice in the Eastern Cape, and educated at St. Andrew’s College, Grahamstown, Rhodes University College, Grahamstown, and Magdalen College, Oxford. Amongst his many achievements he is remembered for his Directorship of the Institute of Social and Economic Research, his active membership of the South African Institute of Race Relations (SAIRR) and his membership of the University College of Fort Hare Council from 1954 – 1959. Professor Hobart Houghton taught Economics at Rhodes from 1933 to 1966 (but for the period 1939-1945), and thereafter, until 1973. During his forty years at Rhodes, Hobart Houghton made significant contributions to thinking about the economic problems of South Africa as a whole, but his particular concern, and the major focus of his research, was the problem of poverty and economic development in the Eastern Cape region, in which the University is situated. The country's economic problems, and those of the Eastern Cape in particular, are clearly no less pressing today than in the past.
- Full Text:
- Authors: Houghton, Desmond Hobart
- Date: 2014
- Language: English
- Type: Text
- Identifier: vital:13946 , http://hdl.handle.net/10962/d1013498 , MS 20 002
- Description: Desmond Hobart Houghton (24 October 1906 – 1976) was born in Alice in the Eastern Cape, and educated at St. Andrew’s College, Grahamstown, Rhodes University College, Grahamstown, and Magdalen College, Oxford. Amongst his many achievements he is remembered for his Directorship of the Institute of Social and Economic Research, his active membership of the South African Institute of Race Relations (SAIRR) and his membership of the University College of Fort Hare Council from 1954 – 1959. Professor Hobart Houghton taught Economics at Rhodes from 1933 to 1966 (but for the period 1939-1945), and thereafter, until 1973. During his forty years at Rhodes, Hobart Houghton made significant contributions to thinking about the economic problems of South Africa as a whole, but his particular concern, and the major focus of his research, was the problem of poverty and economic development in the Eastern Cape region, in which the University is situated. The country's economic problems, and those of the Eastern Cape in particular, are clearly no less pressing today than in the past.
- Full Text:
Knowledge structures and their relevance for teaching and learning in Introductory Financial Accounting
- Authors: Myers, Peta L
- Date: 2016
- Subjects: To be catalogued
- Language: English
- Type: text
- Identifier: vital:21107 , http://hdl.handle.net/10962/6413 , http://dx.doi.org/10.1080/10291954.2015.1099215
- Description: The structure of knowledge within a discipline has implications for the teaching and learning within the discipline. This research examines how the hierarchical knowledge structure of Accounting impacts on the teaching and learning which takes place in a first semester Introductory Financial Accounting course. Students used on-line questionnaires and interviews to explain how they engaged with the discipline and difficulties which they experienced during the semester. Bernstein's pedagogic Device and Maton's Legitimation Code Theory were used to analyse the structure of knowledge within the discipline and as theoretical lenses through which to view these students' perceptions. The research provides a theoretical explanation for the impact that a hierarchical knowledge structure has on teaching and learning within the discipline; how students need to develop a 'trained gaze' and thereby gain mastery over the 'procedures of investigation' to be able to produce the 'legitimate text' required for success in the course. The research also explains why some students experience a 'code clash' and the implications this has for their success in the discipline. Other pedagogical difficulties which were experienced by these students, as a result of the hierarchical knowledge structure within the discipline, are also discussed. In addition to providing a better understanding of the phenomena that drive or hinder student learning, which could contribute towards improving pedagogy and hence student learning, theorising these concepts provides a common language to enable more informed debate on these issues.
- Full Text:
- Date Issued: 2016
- Authors: Myers, Peta L
- Date: 2016
- Subjects: To be catalogued
- Language: English
- Type: text
- Identifier: vital:21107 , http://hdl.handle.net/10962/6413 , http://dx.doi.org/10.1080/10291954.2015.1099215
- Description: The structure of knowledge within a discipline has implications for the teaching and learning within the discipline. This research examines how the hierarchical knowledge structure of Accounting impacts on the teaching and learning which takes place in a first semester Introductory Financial Accounting course. Students used on-line questionnaires and interviews to explain how they engaged with the discipline and difficulties which they experienced during the semester. Bernstein's pedagogic Device and Maton's Legitimation Code Theory were used to analyse the structure of knowledge within the discipline and as theoretical lenses through which to view these students' perceptions. The research provides a theoretical explanation for the impact that a hierarchical knowledge structure has on teaching and learning within the discipline; how students need to develop a 'trained gaze' and thereby gain mastery over the 'procedures of investigation' to be able to produce the 'legitimate text' required for success in the course. The research also explains why some students experience a 'code clash' and the implications this has for their success in the discipline. Other pedagogical difficulties which were experienced by these students, as a result of the hierarchical knowledge structure within the discipline, are also discussed. In addition to providing a better understanding of the phenomena that drive or hinder student learning, which could contribute towards improving pedagogy and hence student learning, theorising these concepts provides a common language to enable more informed debate on these issues.
- Full Text:
- Date Issued: 2016