Conjuring our beings: Stacey Gillian Abe and Immy Mali in conversational partnership
- Abe, Stacey Gillian, Mali, Immy
- Authors: Abe, Stacey Gillian , Mali, Immy
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/145963 , vital:38482 , https://0-doi.org.wam.seals.ac.za/10.1162/afar_a_00457
- Description: The series of Conversational Partnerships began in 2017 in African Arts vol. 50, no. 2, with a conversation between two artists: Eria Nsubuga SANE from Uganda and Sikhumbuzo Makandula from South Africa. The format of a “conversational partnership” (Rubin and Rubin 2012: 7) emphasizes the cocreation of meaning by the interviewer and interviewee as coauthors. This enables a move away from the art history format of the interviewer (usually a writer) assuming the role of the sole author and the interviewee (often an artist) having no status as an author despite the fact that her or his practice-led creation of knowledge is foundational to the content of the interview. Stacey Gillian Abe and Immy Mali participated in a joint artists' residency as part of the RAW program at Rhodes University in South Africa from November to December 2017. During this time, they engaged with each other's practice-led work, and they created this conversational partnership at a writing breakaway in the Eastern Cape.
- Full Text:
- Date Issued: 2019
- Authors: Abe, Stacey Gillian , Mali, Immy
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/145963 , vital:38482 , https://0-doi.org.wam.seals.ac.za/10.1162/afar_a_00457
- Description: The series of Conversational Partnerships began in 2017 in African Arts vol. 50, no. 2, with a conversation between two artists: Eria Nsubuga SANE from Uganda and Sikhumbuzo Makandula from South Africa. The format of a “conversational partnership” (Rubin and Rubin 2012: 7) emphasizes the cocreation of meaning by the interviewer and interviewee as coauthors. This enables a move away from the art history format of the interviewer (usually a writer) assuming the role of the sole author and the interviewee (often an artist) having no status as an author despite the fact that her or his practice-led creation of knowledge is foundational to the content of the interview. Stacey Gillian Abe and Immy Mali participated in a joint artists' residency as part of the RAW program at Rhodes University in South Africa from November to December 2017. During this time, they engaged with each other's practice-led work, and they created this conversational partnership at a writing breakaway in the Eastern Cape.
- Full Text:
- Date Issued: 2019
The landscape of childhood: play and place as tools to understanding children’s enviromental use and perceptions
- Alexander, Jamie K, Cocks, Michelle L, Shackleton, Charlie M
- Authors: Alexander, Jamie K , Cocks, Michelle L , Shackleton, Charlie M
- Date: 2015
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/141165 , vital:37949 , DOI: 10.1007/s10745-015-9755-z
- Description: Research has shown that children are the greatest users of natural areas and that childhood experiences strongly shape adults’ environmental values. This project was designed to ascertain children’s environmental uses and perceptions in two rural villages in the Eastern Cape, South Africa, utilising children’s use of the environment for play and their sense of place as key focus areas. Several factors influenced children’s environmental use, including safety fears, increased consumption of western media and environmental restrictions imposed by the state, revealing how South Africa’s high level of violence against women and children contributes to gendered environmental use and knowledge, and bringing about concern for children’s cultural identity in an increasingly westernised world.
- Full Text:
- Date Issued: 2015
- Authors: Alexander, Jamie K , Cocks, Michelle L , Shackleton, Charlie M
- Date: 2015
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/141165 , vital:37949 , DOI: 10.1007/s10745-015-9755-z
- Description: Research has shown that children are the greatest users of natural areas and that childhood experiences strongly shape adults’ environmental values. This project was designed to ascertain children’s environmental uses and perceptions in two rural villages in the Eastern Cape, South Africa, utilising children’s use of the environment for play and their sense of place as key focus areas. Several factors influenced children’s environmental use, including safety fears, increased consumption of western media and environmental restrictions imposed by the state, revealing how South Africa’s high level of violence against women and children contributes to gendered environmental use and knowledge, and bringing about concern for children’s cultural identity in an increasingly westernised world.
- Full Text:
- Date Issued: 2015
A feminist perspective on autonomism and commoning, with reference to Zimbabwe
- Alexander, Tarryn, Helliker, Kirk D
- Authors: Alexander, Tarryn , Helliker, Kirk D
- Date: 2016
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/71374 , vital:29838 , https://doi.org/10.1080/02589001.2016.1235353
- Description: This article engages with the autonomist Marxism of John Holloway from a feminist standpoint. The positions developed by this feminist critique are used to shed new light on the land occupations in contemporary Zimbabwe. Though sympathetic to his work, we argue that Holloway does not sufficiently address gender identity with specific reference to social reproduction and women. The notions of the commons and the process of commoning are consistent with Holloway’s autonomist framework and its complementarities to Silvia Federici’s Marxist feminist lens on the commons is highlighted. Against a tendency within autonomist and commoning theories, we argue for a pronounced identitarian politics as grounded in localised struggles undertaken by women as women. We privilege the significance of women asserting and revaluing their identities as part of a possible project of transformation. For us, struggling against and beyond what exists is invariably rooted in struggles within what exists (including identities).
- Full Text: false
- Date Issued: 2016
- Authors: Alexander, Tarryn , Helliker, Kirk D
- Date: 2016
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/71374 , vital:29838 , https://doi.org/10.1080/02589001.2016.1235353
- Description: This article engages with the autonomist Marxism of John Holloway from a feminist standpoint. The positions developed by this feminist critique are used to shed new light on the land occupations in contemporary Zimbabwe. Though sympathetic to his work, we argue that Holloway does not sufficiently address gender identity with specific reference to social reproduction and women. The notions of the commons and the process of commoning are consistent with Holloway’s autonomist framework and its complementarities to Silvia Federici’s Marxist feminist lens on the commons is highlighted. Against a tendency within autonomist and commoning theories, we argue for a pronounced identitarian politics as grounded in localised struggles undertaken by women as women. We privilege the significance of women asserting and revaluing their identities as part of a possible project of transformation. For us, struggling against and beyond what exists is invariably rooted in struggles within what exists (including identities).
- Full Text: false
- Date Issued: 2016
Some factors governing the water quality of microtidal estuaries in South Africa
- Authors: Allanson, Brian R
- Date: 2001
- Language: English
- Type: Article
- Identifier: vital:7096 , http://hdl.handle.net/10962/d1012439
- Description: The role of coastal geomorphology and Man-made alterations, including reduced river flow through dam construction, determines, at least in part, the water quality of South African microtidal estuaries. To offer increased understanding of the manner in which these features may modify water quality, a short description of the biogeochemical processes in estuaries is provided. Comment on the present limitations of modelling some of the estuarine processes in South African investigations is given.
- Full Text:
- Date Issued: 2001
- Authors: Allanson, Brian R
- Date: 2001
- Language: English
- Type: Article
- Identifier: vital:7096 , http://hdl.handle.net/10962/d1012439
- Description: The role of coastal geomorphology and Man-made alterations, including reduced river flow through dam construction, determines, at least in part, the water quality of South African microtidal estuaries. To offer increased understanding of the manner in which these features may modify water quality, a short description of the biogeochemical processes in estuaries is provided. Comment on the present limitations of modelling some of the estuarine processes in South African investigations is given.
- Full Text:
- Date Issued: 2001
A late Cretaceous (Maastrichtian) galaxiid fish from South Africa
- Anderson, M Eric, J.L.B. Smith Institute of Ichthyology
- Authors: Anderson, M Eric , J.L.B. Smith Institute of Ichthyology
- Date: 1998-05
- Subjects: Fishes -- Indian Ocean , Flatfishes -- Indian Ocean
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/71000 , vital:29769 , Margaret Smith Library (South African Institute for Aquatic Biodiversity (SAIAB)) Periodicals Margaret Smith Library (South African Institute for Aquatic Biodiversity (SAIAB))
- Description: Online version of original print edition of the Special Publication of the J.L.B. Smith Institute of Ichthyology; No. 60 , A new teleost fish, Stompooria rogersmithi, is described from deposits of a Late Cretaceous crater lake in the Karoo, South Africa. The fossils represent the earliest known species of the recently redefined family Galaxiidae. Distinguishing features include the apposition of the dorsal and anal fins, 41- 42 vertebrae, all neural arches anterior to the dorsal fin origin fused to the centra, presence of epineurals, the opercle reduced above the level of the hyomandibular articulation, the posttemporal and supracleithrum without a connection to the seismosensory head canals, 18 principal caudal fin rays, two epurals, five hypurals, no dorsal outgrowth on the uroneural, the neural spines of the second and third preural centra similar in size, and absence of a stegural, a third uroneural, a mesocoracoid, a supramaxilla, and teeth on the maxilla and palatine bones.
- Full Text:
- Date Issued: 1998-05
- Authors: Anderson, M Eric , J.L.B. Smith Institute of Ichthyology
- Date: 1998-05
- Subjects: Fishes -- Indian Ocean , Flatfishes -- Indian Ocean
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/71000 , vital:29769 , Margaret Smith Library (South African Institute for Aquatic Biodiversity (SAIAB)) Periodicals Margaret Smith Library (South African Institute for Aquatic Biodiversity (SAIAB))
- Description: Online version of original print edition of the Special Publication of the J.L.B. Smith Institute of Ichthyology; No. 60 , A new teleost fish, Stompooria rogersmithi, is described from deposits of a Late Cretaceous crater lake in the Karoo, South Africa. The fossils represent the earliest known species of the recently redefined family Galaxiidae. Distinguishing features include the apposition of the dorsal and anal fins, 41- 42 vertebrae, all neural arches anterior to the dorsal fin origin fused to the centra, presence of epineurals, the opercle reduced above the level of the hyomandibular articulation, the posttemporal and supracleithrum without a connection to the seismosensory head canals, 18 principal caudal fin rays, two epurals, five hypurals, no dorsal outgrowth on the uroneural, the neural spines of the second and third preural centra similar in size, and absence of a stegural, a third uroneural, a mesocoracoid, a supramaxilla, and teeth on the maxilla and palatine bones.
- Full Text:
- Date Issued: 1998-05
New directions in Maritime and Fisheries Anthropology:
- Authors: Aswani, Shankar
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/179028 , vital:40101 , https://0-doi.org.wam.seals.ac.za/10.1111/aman.13380
- Description: Maritime and fisheries anthropology is a mixture of different themes couched under various theoretical frameworks that straddle the humanities and the sciences. In this subject survey, I explore different thematic and theoretical strands of maritime and fisheries anthropology and illustrate broader changes in this subdiscipline since around the mid‐1990s. I also review developing and future thematic and theoretical research frontiers, and discuss their potential contribution to a public and actionable anthropology/scholarship that can better inform fisheries management and conservation. This is important because in the twenty‐first century, coastal peoples are facing socioeconomic and environmental challenges that are increasingly becoming hazardous. To create a more actionable discipline, anthropology needs to be more accessible, inform innovation, and recapture a more pluralistic scholarship that champions interdisciplinary work. This will require the consilience between the humanities and natural sciences for studying human–marine interactions more broadly and for protecting the marine environment.
- Full Text:
- Date Issued: 2020
- Authors: Aswani, Shankar
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/179028 , vital:40101 , https://0-doi.org.wam.seals.ac.za/10.1111/aman.13380
- Description: Maritime and fisheries anthropology is a mixture of different themes couched under various theoretical frameworks that straddle the humanities and the sciences. In this subject survey, I explore different thematic and theoretical strands of maritime and fisheries anthropology and illustrate broader changes in this subdiscipline since around the mid‐1990s. I also review developing and future thematic and theoretical research frontiers, and discuss their potential contribution to a public and actionable anthropology/scholarship that can better inform fisheries management and conservation. This is important because in the twenty‐first century, coastal peoples are facing socioeconomic and environmental challenges that are increasingly becoming hazardous. To create a more actionable discipline, anthropology needs to be more accessible, inform innovation, and recapture a more pluralistic scholarship that champions interdisciplinary work. This will require the consilience between the humanities and natural sciences for studying human–marine interactions more broadly and for protecting the marine environment.
- Full Text:
- Date Issued: 2020
Human harvesting impacts on managed areas: ecological effects of socially-compatible shellfish reserves
- Aswani, Shankar, Flores, Carola F, Broitman, Bernardo R
- Authors: Aswani, Shankar , Flores, Carola F , Broitman, Bernardo R
- Date: 2015
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/124664 , vital:35644 , https://doi.10.1007/s11160-014-9376-4
- Description: We examined how human harvesting impacts on managed areas affect the abundance and size distribution of the edible mangrove shellfish Anadara granosa and Polymesoda spp. in the Roviana Lagoon, Solomon Islands. We tested two hypotheses: (1) in areas permanently and temporally closed to human exploitation, abundance and size distribution of these shellfish species is significantly greater than in sites open to exploitation and (2) moderate human disturbance of shell beds, particularly of Polymesoda spp., increases their abundance. Firstly, we studied perceptions of environmental states and processes coupled to foraging and management interventions to assess sociocultural influences on harvesting practices and ascertain the types of management regime that people would consider in a context where poaching and interloping are common practices. Secondly, we compared shellfish abundance and shell size from areas that were permanently protected, temporally reserved for communal harvest, and permanently open for exploitation. Thirdly, drawing from women’s local knowledge, we measured the abundance of Polymesoda spp. in relation to mud compactness in quadrats across the three management regimes. Results showed that both species were significantly more abundant in permanent and temporally closed sites than in open sites. In the mud compactness study, however, while shell abundance was greater in moderately compacted quadrats, there was no statistical relationship between mud compactness and shell abundance within or across the three management regimes. Results suggest that even under the strong impacts of poaching, temporally closed areas have more clams than open areas and are as effective as areas that are permanently closed nominally. The results also suggest that human harvesting regimes can influence the effectiveness of local management decisions and thus are important when designing community-based conservation programs in the Solomon Islands and other Pacific Islands.
- Full Text:
- Date Issued: 2015
- Authors: Aswani, Shankar , Flores, Carola F , Broitman, Bernardo R
- Date: 2015
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/124664 , vital:35644 , https://doi.10.1007/s11160-014-9376-4
- Description: We examined how human harvesting impacts on managed areas affect the abundance and size distribution of the edible mangrove shellfish Anadara granosa and Polymesoda spp. in the Roviana Lagoon, Solomon Islands. We tested two hypotheses: (1) in areas permanently and temporally closed to human exploitation, abundance and size distribution of these shellfish species is significantly greater than in sites open to exploitation and (2) moderate human disturbance of shell beds, particularly of Polymesoda spp., increases their abundance. Firstly, we studied perceptions of environmental states and processes coupled to foraging and management interventions to assess sociocultural influences on harvesting practices and ascertain the types of management regime that people would consider in a context where poaching and interloping are common practices. Secondly, we compared shellfish abundance and shell size from areas that were permanently protected, temporally reserved for communal harvest, and permanently open for exploitation. Thirdly, drawing from women’s local knowledge, we measured the abundance of Polymesoda spp. in relation to mud compactness in quadrats across the three management regimes. Results showed that both species were significantly more abundant in permanent and temporally closed sites than in open sites. In the mud compactness study, however, while shell abundance was greater in moderately compacted quadrats, there was no statistical relationship between mud compactness and shell abundance within or across the three management regimes. Results suggest that even under the strong impacts of poaching, temporally closed areas have more clams than open areas and are as effective as areas that are permanently closed nominally. The results also suggest that human harvesting regimes can influence the effectiveness of local management decisions and thus are important when designing community-based conservation programs in the Solomon Islands and other Pacific Islands.
- Full Text:
- Date Issued: 2015
The nature of geometry instruction and observed learning-outcomes opportunities in Nigerian and South African high schools:
- Atebe, Humphrey U, Schäfer, Marc
- Authors: Atebe, Humphrey U , Schäfer, Marc
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/140919 , vital:37929 , DOI: 10.1080/10288457.2011.10740712
- Description: The purpose of this qualitative case study involving six secondary school teachers was to obtain insight into how geometry is taught in selected Nigerian and South African high schools. It also aimed, by making use of the van Hiele model of geometry instruction, to elucidate what possible learning opportunities observed instructional methods could offer learners in the subject. The sample comprised three mathematics teachers from Nigeria and three mathematics teachers from South Africa, all of whom were selected using purposive sampling techniques. Instructional activities in six geometry classrooms were recorded on videotape. The van Hiele learning phases provided the framework for data analysis. The findings of this study indicate that observed teaching methods in geometry classrooms in the participating schools offer learners scant opportunity to learn geometry.
- Full Text:
- Date Issued: 2013
- Authors: Atebe, Humphrey U , Schäfer, Marc
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/140919 , vital:37929 , DOI: 10.1080/10288457.2011.10740712
- Description: The purpose of this qualitative case study involving six secondary school teachers was to obtain insight into how geometry is taught in selected Nigerian and South African high schools. It also aimed, by making use of the van Hiele model of geometry instruction, to elucidate what possible learning opportunities observed instructional methods could offer learners in the subject. The sample comprised three mathematics teachers from Nigeria and three mathematics teachers from South Africa, all of whom were selected using purposive sampling techniques. Instructional activities in six geometry classrooms were recorded on videotape. The van Hiele learning phases provided the framework for data analysis. The findings of this study indicate that observed teaching methods in geometry classrooms in the participating schools offer learners scant opportunity to learn geometry.
- Full Text:
- Date Issued: 2013
The role of higher education in society: valuing higher education
- Authors: Badat, Saleem
- Date: 2009
- Language: English
- Type: Conference paper , text
- Identifier: vital:7122 , http://hdl.handle.net/10962/d1006571
- Description: From the introduction: Arthur E. Levine, President of the Teachers College of Columbia University, writes that "In the early years of the Industrial Revolution, the Yale Report of 1828 asked whether the needs of a changing society required either major or minor changes in higher education. The report concluded that it had asked the wrong question. The right question was, What is the purpose of higher education?" Levine goes on to add that questions related to higher education “have their deepest roots in that fundamental question” and that “faced with a society in motion, we must not only ask that question again, but must actively pursue answers, if our colleges and universities are to retain their vitality in a dramatically different world”. I propose to speak about three issues: the first is about our changing world; the second is about the three purposes of higher education; the third is about what I consider to be the five key roles of higher education. Finally, I want to conclude by making some observations on the sometimes unrealistic expectations of higher education. , HERS‐SA Academy 2009, University of Cape Town Graduate School of Business, Waterfront, Cape Town, 14 September 2009. Stagnant universities are expensive and ineffectual monuments to a status quo which is more likely to be a status quo ante, yesterday’s world preserved in aspic (Ralf Dahrendorf, 2000:106‐7)
- Full Text:
- Date Issued: 2009
- Authors: Badat, Saleem
- Date: 2009
- Language: English
- Type: Conference paper , text
- Identifier: vital:7122 , http://hdl.handle.net/10962/d1006571
- Description: From the introduction: Arthur E. Levine, President of the Teachers College of Columbia University, writes that "In the early years of the Industrial Revolution, the Yale Report of 1828 asked whether the needs of a changing society required either major or minor changes in higher education. The report concluded that it had asked the wrong question. The right question was, What is the purpose of higher education?" Levine goes on to add that questions related to higher education “have their deepest roots in that fundamental question” and that “faced with a society in motion, we must not only ask that question again, but must actively pursue answers, if our colleges and universities are to retain their vitality in a dramatically different world”. I propose to speak about three issues: the first is about our changing world; the second is about the three purposes of higher education; the third is about what I consider to be the five key roles of higher education. Finally, I want to conclude by making some observations on the sometimes unrealistic expectations of higher education. , HERS‐SA Academy 2009, University of Cape Town Graduate School of Business, Waterfront, Cape Town, 14 September 2009. Stagnant universities are expensive and ineffectual monuments to a status quo which is more likely to be a status quo ante, yesterday’s world preserved in aspic (Ralf Dahrendorf, 2000:106‐7)
- Full Text:
- Date Issued: 2009
The uses of Chrysomya megacephala (Fabricius, 1794)(Diptera: Calliphoridae) in forensic entomology:
- Badenhorst, Rozane, Villet, Martin H
- Authors: Badenhorst, Rozane , Villet, Martin H
- Date: 2018
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/140631 , vital:37905 , DOI: 10.1080/20961790.2018.1426136
- Description: Chrysomya megacephala (Fabricius, 1794) occurs on every continent and is closely associated with carrion and decaying material in human environments. Its abilities to find dead bodies and carry pathogens give it a prominence in human affairs that may involve prosecution or litigation, and therefore forensic entomologists. The identification, geographical distribution and biology of the species are reviewed to provide a background for approaches that four branches of forensic entomology (urban, stored-product, medico-criminal and environmental) might take to investigations involving this fly.
- Full Text:
- Date Issued: 2018
- Authors: Badenhorst, Rozane , Villet, Martin H
- Date: 2018
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/140631 , vital:37905 , DOI: 10.1080/20961790.2018.1426136
- Description: Chrysomya megacephala (Fabricius, 1794) occurs on every continent and is closely associated with carrion and decaying material in human environments. Its abilities to find dead bodies and carry pathogens give it a prominence in human affairs that may involve prosecution or litigation, and therefore forensic entomologists. The identification, geographical distribution and biology of the species are reviewed to provide a background for approaches that four branches of forensic entomology (urban, stored-product, medico-criminal and environmental) might take to investigations involving this fly.
- Full Text:
- Date Issued: 2018
The battle for Cassinga : conflicting narratives and contested meanings
- Authors: Baines, Gary F
- Date: 2007
- Language: English
- Type: Conference paper
- Identifier: vital:6156 , http://hdl.handle.net/10962/d1007073
- Description: Nearly thirty years ago the name Cassinga (or Kassinga) came to the attention of the world. At the time the name evoked a range of responses, from outrage to grief to the celebration of military bravado. It still does so. And Cassinga will continue to elicit such responses as long as participants and witnesses are alive and the events remain part of living memory. Obviously perpetrators and survivors remember the events of 4 May 1978 differently. Memory is, after all, selective. The recollections of participants and witnesses are framed by personal and political agendas. This much is abundantly clear from the conflicting accounts of Cassinga that appear in the media and literature, especially the exchanges that take place between parties with a stake in how the events are remembered. Thus a report headlined “Battle of Cassinga still rages” published on the 29th anniversary suggested that the events are still shrouded in controversy and that there is no agreement about what transpired in the southern Angolan town. The title of this paper reflects my concern with the battle for rather than of Cassinga. The choice of preposition is intended to signify the ongoing contestation over the meaning of Cassinga.
- Full Text:
- Date Issued: 2007
- Authors: Baines, Gary F
- Date: 2007
- Language: English
- Type: Conference paper
- Identifier: vital:6156 , http://hdl.handle.net/10962/d1007073
- Description: Nearly thirty years ago the name Cassinga (or Kassinga) came to the attention of the world. At the time the name evoked a range of responses, from outrage to grief to the celebration of military bravado. It still does so. And Cassinga will continue to elicit such responses as long as participants and witnesses are alive and the events remain part of living memory. Obviously perpetrators and survivors remember the events of 4 May 1978 differently. Memory is, after all, selective. The recollections of participants and witnesses are framed by personal and political agendas. This much is abundantly clear from the conflicting accounts of Cassinga that appear in the media and literature, especially the exchanges that take place between parties with a stake in how the events are remembered. Thus a report headlined “Battle of Cassinga still rages” published on the 29th anniversary suggested that the events are still shrouded in controversy and that there is no agreement about what transpired in the southern Angolan town. The title of this paper reflects my concern with the battle for rather than of Cassinga. The choice of preposition is intended to signify the ongoing contestation over the meaning of Cassinga.
- Full Text:
- Date Issued: 2007
Creating international support for the development of the news media in Africa
- Authors: Banda, Fackson
- Date: 2006
- Language: English
- Type: Article
- Identifier: vital:6326 , http://hdl.handle.net/10962/d1008301
- Description: This article analyses the issues associated with providing support mechanisms for strengthening media institutions in Africa. It takes a historical look at the involvement of international actors in the evolution of African media, arguing that ideology plays a key role in the way international support is crafted for Africa's development, including media development.
- Full Text:
- Date Issued: 2006
- Authors: Banda, Fackson
- Date: 2006
- Language: English
- Type: Article
- Identifier: vital:6326 , http://hdl.handle.net/10962/d1008301
- Description: This article analyses the issues associated with providing support mechanisms for strengthening media institutions in Africa. It takes a historical look at the involvement of international actors in the evolution of African media, arguing that ideology plays a key role in the way international support is crafted for Africa's development, including media development.
- Full Text:
- Date Issued: 2006
Bioremediation of trace organic compounds found in precious metals refineries wastewaters: A review of potential options
- Barbosa, V L, Tandlich, Roman, Burgess, Jo E
- Authors: Barbosa, V L , Tandlich, Roman , Burgess, Jo E
- Date: 2007
- Language: English
- Type: Article
- Identifier: vital:6469 , http://hdl.handle.net/10962/d1005798 , http://dx.doi.org/10.1016/j.chemosphere.2007.01.018 , http://www.sciencedirect.com/science/article/pii/S0045653507001026
- Description: Platinum group metal (PGM) refining processes produce large quantities of wastewater, which is contaminated with the compounds that make up the solvents/extractants mixtures used in the process. These compounds often include solvesso, β-hydroxyxime, amines, amides and methyl isobutyl ketone. A process to clean up PGM refinery wastewaters so that they could be re-used in the refining process would greatly contribute to continual water storage problems and to cost reduction for the industry. Based on the concept that organic compounds that are produced biologically can be destroyed biologically, the use of biological processes for the treatment of organic compounds in other types of waste stream has been favoured in recent years, owing to their low cost and environmental acceptability. This review examines the available biotechnologies and their effectiveness for treating compounds likely to be contained in precious metal extraction process wastewaters. The processes examined include: biofilters, fluidized bed reactors, trickle-bed bioreactors, bioscrubbers, two-phase partitioning bioreactors, membrane bioreactors and activated sludge. Although all processes examined showed adequate to excellent removal of organic compounds from various gaseous and fewer liquid waste streams, there was a variation in their effectiveness. Variations in performance of laboratory-scale biological processes are probably due to the inherent change in the microbial population composition due to selection pressure, environmental conditions and the time allowed for adaptation to the organic compounds. However, if these factors are disregarded, it can be established that activated sludge and membrane bioreactors are the most promising processes for use in the treatment of PGM refinery wastewaters.
- Full Text:
- Date Issued: 2007
- Authors: Barbosa, V L , Tandlich, Roman , Burgess, Jo E
- Date: 2007
- Language: English
- Type: Article
- Identifier: vital:6469 , http://hdl.handle.net/10962/d1005798 , http://dx.doi.org/10.1016/j.chemosphere.2007.01.018 , http://www.sciencedirect.com/science/article/pii/S0045653507001026
- Description: Platinum group metal (PGM) refining processes produce large quantities of wastewater, which is contaminated with the compounds that make up the solvents/extractants mixtures used in the process. These compounds often include solvesso, β-hydroxyxime, amines, amides and methyl isobutyl ketone. A process to clean up PGM refinery wastewaters so that they could be re-used in the refining process would greatly contribute to continual water storage problems and to cost reduction for the industry. Based on the concept that organic compounds that are produced biologically can be destroyed biologically, the use of biological processes for the treatment of organic compounds in other types of waste stream has been favoured in recent years, owing to their low cost and environmental acceptability. This review examines the available biotechnologies and their effectiveness for treating compounds likely to be contained in precious metal extraction process wastewaters. The processes examined include: biofilters, fluidized bed reactors, trickle-bed bioreactors, bioscrubbers, two-phase partitioning bioreactors, membrane bioreactors and activated sludge. Although all processes examined showed adequate to excellent removal of organic compounds from various gaseous and fewer liquid waste streams, there was a variation in their effectiveness. Variations in performance of laboratory-scale biological processes are probably due to the inherent change in the microbial population composition due to selection pressure, environmental conditions and the time allowed for adaptation to the organic compounds. However, if these factors are disregarded, it can be established that activated sludge and membrane bioreactors are the most promising processes for use in the treatment of PGM refinery wastewaters.
- Full Text:
- Date Issued: 2007
‘Growing’ social protection in developing countries: lessons from Brazil and South Africa
- Barrientos, Armando, Moller, Valerie, Saboia, Joao, Lloyd-Sherlock, Peter, Mase, Julia
- Authors: Barrientos, Armando , Moller, Valerie , Saboia, Joao , Lloyd-Sherlock, Peter , Mase, Julia
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/67195 , vital:29058 , https://doi.org/10.1080/0376835X.2013.756098
- Description: publisher version , The rapid expansion of social protection in the South provides a rich diversity of experiences and lessons on how best to reduce poverty and ultimately eradicate it. Knowledge on how best to ‘grow’ social assistance, understood as long-term institutions responsible for reducing and preventing poverty, is at a premium. This article examines the expansion of social assistance in Brazil and South Africa, two of the middle income countries widely perceived to have advanced furthest in ‘growing’ social protection. It examines three aspects: the primacy of politics in explaining the expansion of social protection and assistance, the tensions between path-dependence and innovation in terms of institutions and practices, and the poverty and inequality outcomes of social assistance expansion. The article concludes by drawing the main lessons for other developing countries.
- Full Text: false
- Date Issued: 2013
- Authors: Barrientos, Armando , Moller, Valerie , Saboia, Joao , Lloyd-Sherlock, Peter , Mase, Julia
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/67195 , vital:29058 , https://doi.org/10.1080/0376835X.2013.756098
- Description: publisher version , The rapid expansion of social protection in the South provides a rich diversity of experiences and lessons on how best to reduce poverty and ultimately eradicate it. Knowledge on how best to ‘grow’ social assistance, understood as long-term institutions responsible for reducing and preventing poverty, is at a premium. This article examines the expansion of social assistance in Brazil and South Africa, two of the middle income countries widely perceived to have advanced furthest in ‘growing’ social protection. It examines three aspects: the primacy of politics in explaining the expansion of social protection and assistance, the tensions between path-dependence and innovation in terms of institutions and practices, and the poverty and inequality outcomes of social assistance expansion. The article concludes by drawing the main lessons for other developing countries.
- Full Text: false
- Date Issued: 2013
Constructions of roles in studio teaching and learning
- Authors: Belluigi, Dina Z
- Date: 2016
- Language: English
- Type: article , text
- Identifier: http://hdl.handle.net/10962/59792 , vital:27651 , https://doi.org/10.1111/jade.12042
- Description: Various constructions of supervisors and students emerge from education literature on art, design and architecture studio pedagogy. Constructions of the supervisor within the studio and during assessment are considered, with a discussion of the threads which underpin them. This is followed by a discussion of some of the current dominant constructions of the student, and possible effects of these roles and relationships on their engagement with learning. As many of these constructions may be inherited or unconscious, a concern for the agency of those involved to rupture, subvert, rescript or resist such constructions motivates this research, while acknowledging that this may be limited by structural and cultural contexts.
- Full Text: false
- Date Issued: 2016
- Authors: Belluigi, Dina Z
- Date: 2016
- Language: English
- Type: article , text
- Identifier: http://hdl.handle.net/10962/59792 , vital:27651 , https://doi.org/10.1111/jade.12042
- Description: Various constructions of supervisors and students emerge from education literature on art, design and architecture studio pedagogy. Constructions of the supervisor within the studio and during assessment are considered, with a discussion of the threads which underpin them. This is followed by a discussion of some of the current dominant constructions of the student, and possible effects of these roles and relationships on their engagement with learning. As many of these constructions may be inherited or unconscious, a concern for the agency of those involved to rupture, subvert, rescript or resist such constructions motivates this research, while acknowledging that this may be limited by structural and cultural contexts.
- Full Text: false
- Date Issued: 2016
Sociodemographic inequities associated with participation in leisure-time physical activity in sub-Saharan Africa: An individual participant data meta-analysis
- Benjamin Longo-Mbenza, Anna Louise Barr, Uttara Partap, Elizabeth H. Young, Kokou Agoudavi, Naby Balde, Gibson B. Kagaruki, Mary T. Mayige, Gerald Mutungi, Omar Mwalim, , Chea S. Wesseh,, Silver K. Bahendeka, David Guwatudde, Jutta M. Adelin Jørgensen, Pascal Bovet, Ayesha A. Motala, Manjinder S. Sandhu
- Authors: Benjamin Longo-Mbenza , Anna Louise Barr , Uttara Partap , Elizabeth H. Young , Kokou Agoudavi , Naby Balde , Gibson B. Kagaruki , Mary T. Mayige , Gerald Mutungi , Omar Mwalim , , Chea S. Wesseh, , Silver K. Bahendeka , David Guwatudde , Jutta M. Adelin Jørgensen , Pascal Bovet , Ayesha A. Motala , Manjinder S. Sandhu
- Date: 2020-06-15
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/11260/3378 , vital:43337 , https://doi.org/10.1186/s12889-020-08987-w
- Description: Background: Leisure-time physical activity (LTPA) is an important contributor to total physical activity and the focus of many interventions promoting activity in high-income populations. Little is known about LTPA in subSaharan Africa (SSA), and with expected declines in physical activity due to rapid urbanisation and lifestyle changes we aimed to assess the sociodemographic differences in the prevalence of LTPA in the adult populations of this region to identify potential barriers for equitable participation. Methods: A two-step individual participant data meta-analysis was conducted using data collected in SSA through 10 population health surveys that included the Global Physical Activity Questionnaire. For each sociodemographic characteristic, the pooled adjusted prevalence and risk ratios (RRs) for participation in LTPA were calculated using the random effects method. Between-study heterogeneity was explored through meta-regression analyses and tests for interaction. Results: Across the 10 populations (N = 26,022), 18.9% (95%CI: 14.3, 24.1; I 2 = 99.0%) of adults (≥ 18 years) participated in LTPA. Men were more likely to participate in LTPA compared with women (RR for women: 0.43; 95%CI: 0.32, 0.60; P less than 0.001; I 2 = 97.5%), while age was inversely associated with participation. Higher levels of education were associated with increased LTPA participation (RR: 1.30; 95%CI: 1.09, 1.55; P = 0.004; I 2 = 98.1%), with those living in rural areas or self-employed less likely to participate in LTPA. These associations remained after adjusting for time spent physically active at work or through active travel. Conclusions: In these populations, participation in LTPA was low, and strongly associated with sex, age, education, self-employment and urban residence. Identifying the potential barriers that reduce participation in these groups is necessary to enable equitable access to the health and social benefits associated with LTPA. Keywords: Leisure-time physical activity, Physical activity, Sub-Saharan Africa, Occupational physical activity, Active travel, Global physical activity questionnaire, Recreation, Equity, Urbanisation, Mechanisation
- Full Text:
- Date Issued: 2020-06-15
- Authors: Benjamin Longo-Mbenza , Anna Louise Barr , Uttara Partap , Elizabeth H. Young , Kokou Agoudavi , Naby Balde , Gibson B. Kagaruki , Mary T. Mayige , Gerald Mutungi , Omar Mwalim , , Chea S. Wesseh, , Silver K. Bahendeka , David Guwatudde , Jutta M. Adelin Jørgensen , Pascal Bovet , Ayesha A. Motala , Manjinder S. Sandhu
- Date: 2020-06-15
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/11260/3378 , vital:43337 , https://doi.org/10.1186/s12889-020-08987-w
- Description: Background: Leisure-time physical activity (LTPA) is an important contributor to total physical activity and the focus of many interventions promoting activity in high-income populations. Little is known about LTPA in subSaharan Africa (SSA), and with expected declines in physical activity due to rapid urbanisation and lifestyle changes we aimed to assess the sociodemographic differences in the prevalence of LTPA in the adult populations of this region to identify potential barriers for equitable participation. Methods: A two-step individual participant data meta-analysis was conducted using data collected in SSA through 10 population health surveys that included the Global Physical Activity Questionnaire. For each sociodemographic characteristic, the pooled adjusted prevalence and risk ratios (RRs) for participation in LTPA were calculated using the random effects method. Between-study heterogeneity was explored through meta-regression analyses and tests for interaction. Results: Across the 10 populations (N = 26,022), 18.9% (95%CI: 14.3, 24.1; I 2 = 99.0%) of adults (≥ 18 years) participated in LTPA. Men were more likely to participate in LTPA compared with women (RR for women: 0.43; 95%CI: 0.32, 0.60; P less than 0.001; I 2 = 97.5%), while age was inversely associated with participation. Higher levels of education were associated with increased LTPA participation (RR: 1.30; 95%CI: 1.09, 1.55; P = 0.004; I 2 = 98.1%), with those living in rural areas or self-employed less likely to participate in LTPA. These associations remained after adjusting for time spent physically active at work or through active travel. Conclusions: In these populations, participation in LTPA was low, and strongly associated with sex, age, education, self-employment and urban residence. Identifying the potential barriers that reduce participation in these groups is necessary to enable equitable access to the health and social benefits associated with LTPA. Keywords: Leisure-time physical activity, Physical activity, Sub-Saharan Africa, Occupational physical activity, Active travel, Global physical activity questionnaire, Recreation, Equity, Urbanisation, Mechanisation
- Full Text:
- Date Issued: 2020-06-15
In vitro Anti-trypanosomal activities of indanone-based chalcones:
- Beteck, Richard M, Legoabe, Lesetje J, Isaacs, Michelle, Hoppe, Heinrich C
- Authors: Beteck, Richard M , Legoabe, Lesetje J , Isaacs, Michelle , Hoppe, Heinrich C
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/158280 , vital:40169 , https://doi.org/10.3354/meps12953
- Description: Human African trypanosomiasis is a neglected infectious disease that affects mostly people living in the rural areas of Africa. Current treatment options are limited to just four drugs that have been in use of four to nine decades. The life-threatening toxic side-effects associated with the use of these drugs are disconcerting. Poor efficacy, low oral bioavailability, and high cost are other shortcomings of current HAT treatments. Evaluating the potentials of known hits for other therapeutic areas may be a fast and convenient method to discover new hit compounds against alternative targets. A library of 34 known indanone based chalcones was screened against T.b. brucei and nine potent hits, having IC50 values between 0.5–8.9 µM, were found. The SAR studies of this series could provide useful information in guiding future exploration of this class of compounds in search of more potent, safe, and low cost anti-trypanosomal agents.
- Full Text:
- Date Issued: 2019
- Authors: Beteck, Richard M , Legoabe, Lesetje J , Isaacs, Michelle , Hoppe, Heinrich C
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/158280 , vital:40169 , https://doi.org/10.3354/meps12953
- Description: Human African trypanosomiasis is a neglected infectious disease that affects mostly people living in the rural areas of Africa. Current treatment options are limited to just four drugs that have been in use of four to nine decades. The life-threatening toxic side-effects associated with the use of these drugs are disconcerting. Poor efficacy, low oral bioavailability, and high cost are other shortcomings of current HAT treatments. Evaluating the potentials of known hits for other therapeutic areas may be a fast and convenient method to discover new hit compounds against alternative targets. A library of 34 known indanone based chalcones was screened against T.b. brucei and nine potent hits, having IC50 values between 0.5–8.9 µM, were found. The SAR studies of this series could provide useful information in guiding future exploration of this class of compounds in search of more potent, safe, and low cost anti-trypanosomal agents.
- Full Text:
- Date Issued: 2019
Passphrase and Keystroke Dynamics Authentication: Usable Security
- Bhana, Bhaveer, Flowerday, Stephen
- Authors: Bhana, Bhaveer , Flowerday, Stephen
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/158372 , vital:40178 , https://doi.org/10.1016/j.cose.2020.101925
- Description: It was found that employees spend a total of 2.25 days within 60 days on password-related activities. The time consumed by this is unproductive and has a negative impact on usability. The problem is caused by current text-based user authentication policies in use. This study aims to address this research problem by assessing the effectiveness of a proposed two-tier user authentication solution involving passphrases and keystroke dynamics.
- Full Text:
- Date Issued: 2020
- Authors: Bhana, Bhaveer , Flowerday, Stephen
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/158372 , vital:40178 , https://doi.org/10.1016/j.cose.2020.101925
- Description: It was found that employees spend a total of 2.25 days within 60 days on password-related activities. The time consumed by this is unproductive and has a negative impact on usability. The problem is caused by current text-based user authentication policies in use. This study aims to address this research problem by assessing the effectiveness of a proposed two-tier user authentication solution involving passphrases and keystroke dynamics.
- Full Text:
- Date Issued: 2020
Introduction:
- Authors: Bischoff, Paul-Henri
- Date: 2020
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/161700 , vital:40655 , ISBN 9780367348281 , https://www.routledge.com/African-Foreign-Policies-Selecting-Signifiers-to-Explain-Agency/Bischoff/p/book/9780367348281
- Description: This book explores, at a time when several powers have become serious players on the continent, aspects of African agency, past and present, by African writers on foreign policy, representative of geography, language and state size.
- Full Text:
- Date Issued: 2020
- Authors: Bischoff, Paul-Henri
- Date: 2020
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/161700 , vital:40655 , ISBN 9780367348281 , https://www.routledge.com/African-Foreign-Policies-Selecting-Signifiers-to-Explain-Agency/Bischoff/p/book/9780367348281
- Description: This book explores, at a time when several powers have become serious players on the continent, aspects of African agency, past and present, by African writers on foreign policy, representative of geography, language and state size.
- Full Text:
- Date Issued: 2020
The effect of prolonged cold storage of eland (Taurotragus oryx) cauda epididymides on the spermatozoa: possible implications for the conservation of biodiversity
- Bissett, Charlene, Bernard, Ric T F
- Authors: Bissett, Charlene , Bernard, Ric T F
- Date: 2005
- Language: English
- Type: Article
- Identifier: vital:6947 , http://hdl.handle.net/10962/d1011976
- Description: The objectives of this study were to investigate the effects of prolonged storage of cauda epididymides at 4 °C on spermatozoa, and to determine the practicality of utilising epididymal sperm, harvested from testes collected during routine culling of game animals, in assisted reproductive technologies. Testes from eland (Taurotragus oryx) were collected and epididymides removed and maintained at 4 °C. Sperm motility, viability, morphology and membrane integrity were examined at 12 h intervals for 108 h. Sperm motility and viability were significantly lower at the end of the experiment than at the start (P < 0.05) and there was individual variation in the rate at which motility and viability declined. The total number of normal sperm decreased significantly with prolonged storage at 4 °C. Midpiece defects were the most common and head and tail abnormalities were rare. A significant decrease in acrosomal and nuclear membrane integrity was observed with prolonged cold storage but there was no significant change in cell membrane integrity. However, about 30% of epididymal sperm survived for 3 days at 4 °C and more than 10% survived for 4 days, and it should be possible to use sperm from culled animals in some assisted reproductive technologies.
- Full Text:
- Date Issued: 2005
- Authors: Bissett, Charlene , Bernard, Ric T F
- Date: 2005
- Language: English
- Type: Article
- Identifier: vital:6947 , http://hdl.handle.net/10962/d1011976
- Description: The objectives of this study were to investigate the effects of prolonged storage of cauda epididymides at 4 °C on spermatozoa, and to determine the practicality of utilising epididymal sperm, harvested from testes collected during routine culling of game animals, in assisted reproductive technologies. Testes from eland (Taurotragus oryx) were collected and epididymides removed and maintained at 4 °C. Sperm motility, viability, morphology and membrane integrity were examined at 12 h intervals for 108 h. Sperm motility and viability were significantly lower at the end of the experiment than at the start (P < 0.05) and there was individual variation in the rate at which motility and viability declined. The total number of normal sperm decreased significantly with prolonged storage at 4 °C. Midpiece defects were the most common and head and tail abnormalities were rare. A significant decrease in acrosomal and nuclear membrane integrity was observed with prolonged cold storage but there was no significant change in cell membrane integrity. However, about 30% of epididymal sperm survived for 3 days at 4 °C and more than 10% survived for 4 days, and it should be possible to use sperm from culled animals in some assisted reproductive technologies.
- Full Text:
- Date Issued: 2005