"Knowing With": New Rhodes Board Navigates Collaboration, Intimacy, and Solidarity
- Baasch, Rachel M, Fọlárànmí, Stephen, Koide, Emi, Kakande, Angelo, Simbao, Ruth K
- Authors: Baasch, Rachel M , Fọlárànmí, Stephen , Koide, Emi , Kakande, Angelo , Simbao, Ruth K
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/147514 , vital:38645 , https://doi.org/10.1162/afar_a_00523
- Description: Rhodes University (or UCKAR), based in Makhanda, South Africa, joined the African Arts editorial consortium in 2016 and its first journal issue—vol. 50, no. 2—was published in 2017. Initially the board was run by Ruth Simbao, with the aim of developing collaborations with other scholars, particularly those based on the African continent and within the global south (Simbao 2017: 1). For the second Rhodes issue (Summer 2018), Simbao worked with Guest Board Member Amanda Tumusiime from Makerere University, and for the third Rhodes issue (Summer 2019) she collaborated with Stephen Folárànmí from Obáfémi Awólówò University, Ilé-Ifè, Nigeria, who at the time was a Postdoctoral Fellow at Rhodes.
- Full Text:
- Date Issued: 2020
- Authors: Baasch, Rachel M , Fọlárànmí, Stephen , Koide, Emi , Kakande, Angelo , Simbao, Ruth K
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/147514 , vital:38645 , https://doi.org/10.1162/afar_a_00523
- Description: Rhodes University (or UCKAR), based in Makhanda, South Africa, joined the African Arts editorial consortium in 2016 and its first journal issue—vol. 50, no. 2—was published in 2017. Initially the board was run by Ruth Simbao, with the aim of developing collaborations with other scholars, particularly those based on the African continent and within the global south (Simbao 2017: 1). For the second Rhodes issue (Summer 2018), Simbao worked with Guest Board Member Amanda Tumusiime from Makerere University, and for the third Rhodes issue (Summer 2019) she collaborated with Stephen Folárànmí from Obáfémi Awólówò University, Ilé-Ifè, Nigeria, who at the time was a Postdoctoral Fellow at Rhodes.
- Full Text:
- Date Issued: 2020
A bi-directional SOAP/SMS gateway service
- Halse, Guy A, Terzoli, Alfredo, Wells, George C
- Authors: Halse, Guy A , Terzoli, Alfredo , Wells, George C
- Date: 2002
- Subjects: Broadband 2 SATNAC 2002
- Language: English
- Type: Conference paper
- Identifier: vital:6600 , http://hdl.handle.net/10962/d1008293
- Description: Many applications need the ability to do real-time notification when events occur. Often the people who need to be kept aware of events are in a remote location. This paper looks at a bi-directional gateway between networked computers and the GSM short message service. The gateway is implemented as a web service, and uses the Simple Object Access Protocol to facilitate data communication. The service interacts with a database in order to facilitate retrieval of sent or received messages, as well as provide accounting abilities. It is intended as a practical proof-of-concept application demonstrating some ofdemonstrating some of the capabilities of the Simple Object Access Protocol.
- Full Text:
- Date Issued: 2002
- Authors: Halse, Guy A , Terzoli, Alfredo , Wells, George C
- Date: 2002
- Subjects: Broadband 2 SATNAC 2002
- Language: English
- Type: Conference paper
- Identifier: vital:6600 , http://hdl.handle.net/10962/d1008293
- Description: Many applications need the ability to do real-time notification when events occur. Often the people who need to be kept aware of events are in a remote location. This paper looks at a bi-directional gateway between networked computers and the GSM short message service. The gateway is implemented as a web service, and uses the Simple Object Access Protocol to facilitate data communication. The service interacts with a database in order to facilitate retrieval of sent or received messages, as well as provide accounting abilities. It is intended as a practical proof-of-concept application demonstrating some ofdemonstrating some of the capabilities of the Simple Object Access Protocol.
- Full Text:
- Date Issued: 2002
A class of ideals of the centre of a group ring
- Authors: O'Reilly, M F
- Date: 1981
- Language: English
- Type: Article
- Identifier: vital:6786 , http://hdl.handle.net/10962/d1006929
- Description: Reynolds (1972), using character-theory, showed that the p-section sums span an ideal of the centre Z(kG) of the group algebra of a finite group G over a field k of characteristic dividing the order of G. In O'Reilly (1973) a character-free proof was given. Here we extend these techniques to show the existence of a wider class of ideals of Z(kG).
- Full Text:
- Date Issued: 1981
- Authors: O'Reilly, M F
- Date: 1981
- Language: English
- Type: Article
- Identifier: vital:6786 , http://hdl.handle.net/10962/d1006929
- Description: Reynolds (1972), using character-theory, showed that the p-section sums span an ideal of the centre Z(kG) of the group algebra of a finite group G over a field k of characteristic dividing the order of G. In O'Reilly (1973) a character-free proof was given. Here we extend these techniques to show the existence of a wider class of ideals of Z(kG).
- Full Text:
- Date Issued: 1981
A comparative photophysicochemical study of phthalocyanines encapsulated in core–shell silica nanoparticles
- Fashina, Adedayo, Amuhaya, Edith, Nyokong, Tebello
- Authors: Fashina, Adedayo , Amuhaya, Edith , Nyokong, Tebello
- Language: English
- Type: text
- Identifier: vital:7271 , http://hdl.handle.net/10962/d1020286 , Original publication is available at http://dx.doi.org/10.1016/j.saa.2014.08.062
- Full Text: false
- Authors: Fashina, Adedayo , Amuhaya, Edith , Nyokong, Tebello
- Language: English
- Type: text
- Identifier: vital:7271 , http://hdl.handle.net/10962/d1020286 , Original publication is available at http://dx.doi.org/10.1016/j.saa.2014.08.062
- Full Text: false
A Declaration to the People of South Africa
- Date: 1994-04
- 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/10948/33968 , vital:33170 , Bulk File 7
- Description: This is one of many individual publications put out by the New Unity Movement.
- Full Text: false
- Date Issued: 1994-04
- Date: 1994-04
- 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/10948/33968 , vital:33170 , Bulk File 7
- Description: This is one of many individual publications put out by the New Unity Movement.
- Full Text: false
- Date Issued: 1994-04
A development stratergy for the fishing industry
- Authors: Fishing Industry
- Date: 1994
- Subjects: Fishing Industry
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/250485 , vital:52003
- Description: For too long workers and the small fishing communities have been trampled under foot. As a result massive disparities have arisen in the fishing industry. The small fishing communities barely exist. And workers employed by the big fishing companies are still treated as an extra tool. Now is the time to change all this. Our members don't want the crumbs off the table. No, they want to be given the opportunity to participate fully in the economy and in particular in the development of the fishing industry. The industry is, however, still trapped in the past. As a result it cannot make use of the many opportunities we believe there are for it to expand and grow. Before I examine these opportunities perhaps it is wise to set out briefly the principles on which we see the industry established.
- Full Text:
- Date Issued: 1994
- Authors: Fishing Industry
- Date: 1994
- Subjects: Fishing Industry
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/250485 , vital:52003
- Description: For too long workers and the small fishing communities have been trampled under foot. As a result massive disparities have arisen in the fishing industry. The small fishing communities barely exist. And workers employed by the big fishing companies are still treated as an extra tool. Now is the time to change all this. Our members don't want the crumbs off the table. No, they want to be given the opportunity to participate fully in the economy and in particular in the development of the fishing industry. The industry is, however, still trapped in the past. As a result it cannot make use of the many opportunities we believe there are for it to expand and grow. Before I examine these opportunities perhaps it is wise to set out briefly the principles on which we see the industry established.
- Full Text:
- Date Issued: 1994
A Geopolitics of knowledge and the value of discomfort:
- Authors: Simbao, Ruth K
- Date: 2016
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/146444 , vital:38526 , https://www.ru.ac.za/fineart/latestnews/alutacontinuadoingitfordaddytenyearson.html
- Description: In 2006, the short essay ‘Doing it for Daddy’ by visual artist Sharlene Khan caused controversy when it expressed the opinion that since 1994, ‘transformation’ in the visual arts field in South Africa seemed to have halted at the point of White women replacing White men in positions of power. It questioned this new position of dominance in institutions that remained colonially and racially untransformed. On the 16 and 17th of September 2016, the School of Fine Art at Rhodes University will host a one-day symposium ‘A luta Continua: Doing it for Daddy - Ten years on…’ which seeks to both commemorate that article and those who ‘speak up’, but also, fundamentally, to continue looking at the ways in which various social oppressions intersect in the fields of art history and visual arts in South Africa. Presenters include Khwezi Gule, Nontobeko Ntombela, Nomusa Makhubu, Same Mdluli, Fouad Asfour, Ruth Simbao, Sharlene Khan, students from Wits School of Arts and Rhodes Art History and Visual Culture, as well as a performance by visual artist Sikhumbuzo Makandula.
- Full Text:
- Date Issued: 2016
- Authors: Simbao, Ruth K
- Date: 2016
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/146444 , vital:38526 , https://www.ru.ac.za/fineart/latestnews/alutacontinuadoingitfordaddytenyearson.html
- Description: In 2006, the short essay ‘Doing it for Daddy’ by visual artist Sharlene Khan caused controversy when it expressed the opinion that since 1994, ‘transformation’ in the visual arts field in South Africa seemed to have halted at the point of White women replacing White men in positions of power. It questioned this new position of dominance in institutions that remained colonially and racially untransformed. On the 16 and 17th of September 2016, the School of Fine Art at Rhodes University will host a one-day symposium ‘A luta Continua: Doing it for Daddy - Ten years on…’ which seeks to both commemorate that article and those who ‘speak up’, but also, fundamentally, to continue looking at the ways in which various social oppressions intersect in the fields of art history and visual arts in South Africa. Presenters include Khwezi Gule, Nontobeko Ntombela, Nomusa Makhubu, Same Mdluli, Fouad Asfour, Ruth Simbao, Sharlene Khan, students from Wits School of Arts and Rhodes Art History and Visual Culture, as well as a performance by visual artist Sikhumbuzo Makandula.
- Full Text:
- Date Issued: 2016
A new species of Pogonophryne (Pisces, Artedidraconidae) from Queen Maud Land, Antarctica
- Eakin, Richard R, 1946-, J.L.B. Smith Institute of Ichthyology
- Authors: Eakin, Richard R, 1946- , J.L.B. Smith Institute of Ichthyology
- Date: 1988-01
- Subjects: Pogonophryne -- Antarctica -- Queen Maud Land
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/70280 , vital:29641 , 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. 45 , Pogonophryne platypogon is described from a 61.0 mm SL juvenile specimen collected near Queen Maud Land, Antarctica. This species belongs to the dorsally spotted group of Pogonophryne but is distinguished from other known species of the group in having a smoothly flattened terminal expansion on the mental barbel and a very narrow snout and jaws (jaw width less than 13% SL). It also has a very narrow interorbital region (less than 5% SL).
- Full Text:
- Date Issued: 1988-01
- Authors: Eakin, Richard R, 1946- , J.L.B. Smith Institute of Ichthyology
- Date: 1988-01
- Subjects: Pogonophryne -- Antarctica -- Queen Maud Land
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/70280 , vital:29641 , 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. 45 , Pogonophryne platypogon is described from a 61.0 mm SL juvenile specimen collected near Queen Maud Land, Antarctica. This species belongs to the dorsally spotted group of Pogonophryne but is distinguished from other known species of the group in having a smoothly flattened terminal expansion on the mental barbel and a very narrow snout and jaws (jaw width less than 13% SL). It also has a very narrow interorbital region (less than 5% SL).
- Full Text:
- Date Issued: 1988-01
A New Synthetic Method for Tetraazatricyclic Derivatives and Evaluation of Their Biological Properties
- Odame, Felix, Betz, Richard, Hosten, Eric C, Krause, Jason, Isaacs, Michelle, Hoppe, Heinrich C, Khanye, Setshaba D, Sayed, Yasien, Frost, P Carminita, Lobb, Kevin A, Tshentu, Zenixole
- Authors: Odame, Felix , Betz, Richard , Hosten, Eric C , Krause, Jason , Isaacs, Michelle , Hoppe, Heinrich C , Khanye, Setshaba D , Sayed, Yasien , Frost, P Carminita , Lobb, Kevin A , Tshentu, Zenixole
- Date: 2018
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/123189 , vital:35413 , https://doi.org/10.1002/slct.201802930
- Description: Herein, we propose novel quinolones incorporating an INH moiety as potential drug templates against TB. The quinolone-based compounds bearing an INH moiety attached via a hydrazide–hydrazone bond were synthesised and evaluated against Mycobacterium tuberculosis H37Rv (MTB). The compounds were also evaluated for cytotoxicity against HeLa cell lines. These compounds showed significant activity (MIC90) against MTB in the range of 0.2–8 μM without any cytotoxic effects. Compounds 10 (MIC90; 0.9 μM), 11 (MIC90; 0.2 μM), 12 (MIC90; 0.8 μM) and compound 15 (MIC90; 0.8 μM), the most active compounds in this series, demonstrate activities on par with INH and superior to those reported for the fluoroquinolones. The SAR analysis suggests that the nature of substituents at positions −1 and −3 of the quinolone nucleus influences anti-MTB activity. Aqueous solubility evaluation and in vitro metabolic stability of compound 12 highlights favourable drug-like properties for this compound class.
- Full Text:
- Date Issued: 2018
- Authors: Odame, Felix , Betz, Richard , Hosten, Eric C , Krause, Jason , Isaacs, Michelle , Hoppe, Heinrich C , Khanye, Setshaba D , Sayed, Yasien , Frost, P Carminita , Lobb, Kevin A , Tshentu, Zenixole
- Date: 2018
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/123189 , vital:35413 , https://doi.org/10.1002/slct.201802930
- Description: Herein, we propose novel quinolones incorporating an INH moiety as potential drug templates against TB. The quinolone-based compounds bearing an INH moiety attached via a hydrazide–hydrazone bond were synthesised and evaluated against Mycobacterium tuberculosis H37Rv (MTB). The compounds were also evaluated for cytotoxicity against HeLa cell lines. These compounds showed significant activity (MIC90) against MTB in the range of 0.2–8 μM without any cytotoxic effects. Compounds 10 (MIC90; 0.9 μM), 11 (MIC90; 0.2 μM), 12 (MIC90; 0.8 μM) and compound 15 (MIC90; 0.8 μM), the most active compounds in this series, demonstrate activities on par with INH and superior to those reported for the fluoroquinolones. The SAR analysis suggests that the nature of substituents at positions −1 and −3 of the quinolone nucleus influences anti-MTB activity. Aqueous solubility evaluation and in vitro metabolic stability of compound 12 highlights favourable drug-like properties for this compound class.
- Full Text:
- Date Issued: 2018
A possible relation between dietary zinc and cAMP in the regulation of tumour cell proliferation in the rat
- Skeef, Noel S, Duncan, John R
- Authors: Skeef, Noel S , Duncan, John R
- Date: 1988
- Language: English
- Type: Article
- Identifier: vital:6473 , http://hdl.handle.net/10962/d1006154 , http://dx.doi.org/10.1079/BJN19880052
- Description: The possibility of an effect of zinc on the rate of tumour cell division, mediated through a regulation of cellular cAMP concentration, was investigated in the present study in rats. Dietary Zn deficiency (< 1·5 mg Zn/kg) but not Zn excess (500 mg Zn/kg) resulted in an increased cAMP concentration in transplanted hepatoma cells. Neither treatment had any effect on the cAMP concentration in regenerating liver or normal resting liver. Both the deficient and excess Zn diets resulted in a small reduction in tumour growth (not statistically significant). The results seem to indicate that the relation investigated in the present study does not apply in the cell line used.
- Full Text:
- Date Issued: 1988
- Authors: Skeef, Noel S , Duncan, John R
- Date: 1988
- Language: English
- Type: Article
- Identifier: vital:6473 , http://hdl.handle.net/10962/d1006154 , http://dx.doi.org/10.1079/BJN19880052
- Description: The possibility of an effect of zinc on the rate of tumour cell division, mediated through a regulation of cellular cAMP concentration, was investigated in the present study in rats. Dietary Zn deficiency (< 1·5 mg Zn/kg) but not Zn excess (500 mg Zn/kg) resulted in an increased cAMP concentration in transplanted hepatoma cells. Neither treatment had any effect on the cAMP concentration in regenerating liver or normal resting liver. Both the deficient and excess Zn diets resulted in a small reduction in tumour growth (not statistically significant). The results seem to indicate that the relation investigated in the present study does not apply in the cell line used.
- Full Text:
- Date Issued: 1988
A Practical Approach to Differential Calculus: MAT 112
- Authors: Ndiweni, O
- Date: 2011-06
- Language: English
- Type: Examination paper
- Identifier: vital:17601 , http://hdl.handle.net/10353/d1009975
- Description: A Practical Approach to Differential Calculus: MAT 112, degree examination June 2011.
- Full Text: false
- Date Issued: 2011-06
- Authors: Ndiweni, O
- Date: 2011-06
- Language: English
- Type: Examination paper
- Identifier: vital:17601 , http://hdl.handle.net/10353/d1009975
- Description: A Practical Approach to Differential Calculus: MAT 112, degree examination June 2011.
- Full Text: false
- Date Issued: 2011-06
A quantitative analysis of microplastic pollution along the south-eastern coastline of South Africa
- Nel, Holly A, Froneman, P William
- Authors: Nel, Holly A , Froneman, P William
- Date: 2015
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/68032 , vital:29187 , https://doi.org/10.1016/j.marpolbul.2015.09.043
- Description: Publisher version , The extent of microplastic pollution (< 5 mm) in the southern hemisphere, particularly southern Africa, is largely unknown. This study aimed to evaluate microplastic pollution along the south-eastern coastline of South Africa, looking at whether bays are characterised by higher microplastic densities than open stretches of coastline in both beach sediment and surf-zone water. Microplastic (mean ± standard error) densities in the beach sediment ranged between 688.9 ± 348.2 and 3308 ± 1449 particles·m− 2, while those in the water column varied between 257.9 ± 53.36 and 1215 ± 276.7 particles·m− 3. With few exceptions there were no significant spatial patterns in either the sediment or water column microplastic densities; with little differences in density between bays and the open coast (P > 0.05). These data indicate that the presence of microplastics were not associated with proximity to land-based sources or population density, but rather is governed by water circulation.
- Full Text: false
- Date Issued: 2015
- Authors: Nel, Holly A , Froneman, P William
- Date: 2015
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/68032 , vital:29187 , https://doi.org/10.1016/j.marpolbul.2015.09.043
- Description: Publisher version , The extent of microplastic pollution (< 5 mm) in the southern hemisphere, particularly southern Africa, is largely unknown. This study aimed to evaluate microplastic pollution along the south-eastern coastline of South Africa, looking at whether bays are characterised by higher microplastic densities than open stretches of coastline in both beach sediment and surf-zone water. Microplastic (mean ± standard error) densities in the beach sediment ranged between 688.9 ± 348.2 and 3308 ± 1449 particles·m− 2, while those in the water column varied between 257.9 ± 53.36 and 1215 ± 276.7 particles·m− 3. With few exceptions there were no significant spatial patterns in either the sediment or water column microplastic densities; with little differences in density between bays and the open coast (P > 0.05). These data indicate that the presence of microplastics were not associated with proximity to land-based sources or population density, but rather is governed by water circulation.
- Full Text: false
- Date Issued: 2015
A quantitative post-release evaluation of biological control of water lettuce, Pistia stratiotes L. (Araceae) by the weevil Neohydronomus affinis Hustache (Coleoptera: Curculionidae) at Cape Recife Nature Reserve, Eastern Cape Province, South Africa
- Moore, Gareth R, Hill, Martin P
- Authors: Moore, Gareth R , Hill, Martin P
- Date: 2012
- Language: English
- Type: text , Article
- Identifier: vital:6839 , http://hdl.handle.net/10962/d1010987 , http://dx.doi.org/10.4001/003.020.0217 , https://orcid.org/0000-0003-0579-5298
- Description: [from the introduction] Water lettuce, Pistia stratiotes L. (Araceae) is recognized as being among the world’s worst aquatic weeds. In its adventive range, the plant forms extensive mats capable of blocking navigation channels, impeding water flow in irrigation and flood control canals, and disrupting hydropower generation (Holm et al. 1977). Dense mats of the weed prevent light penetration into the water column which negatively affects submerged aquatic plant communities, causing a lowering of the oxygen concentration and thereby reducing benthic invertebrate and fish populations (Neuenschwander et al. 2009).
- Full Text:
- Date Issued: 2012
- Authors: Moore, Gareth R , Hill, Martin P
- Date: 2012
- Language: English
- Type: text , Article
- Identifier: vital:6839 , http://hdl.handle.net/10962/d1010987 , http://dx.doi.org/10.4001/003.020.0217 , https://orcid.org/0000-0003-0579-5298
- Description: [from the introduction] Water lettuce, Pistia stratiotes L. (Araceae) is recognized as being among the world’s worst aquatic weeds. In its adventive range, the plant forms extensive mats capable of blocking navigation channels, impeding water flow in irrigation and flood control canals, and disrupting hydropower generation (Holm et al. 1977). Dense mats of the weed prevent light penetration into the water column which negatively affects submerged aquatic plant communities, causing a lowering of the oxygen concentration and thereby reducing benthic invertebrate and fish populations (Neuenschwander et al. 2009).
- Full Text:
- Date Issued: 2012
A study of the kinetics of a high temperature thermoluminescence peak in annealed natural quartz
- Thomas, Sunil, Chithambo, Makaiko L
- Authors: Thomas, Sunil , Chithambo, Makaiko L
- Date: 2018
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/110007 , vital:33213 , DOI: 10.1016/j.jlumin.2018.08.077
- Description: Thermoluminescence of a high temperature secondary glow-peak in natural quartz annealed at 900 °C is reported. The glow-curve of a sample irradiated to 10 Gy and measured at 1 °C/s shows three peaks; the main peak at 71 °C and two other weaker-intensity peaks at 125 °C and 177 °C. For reference, the peaks are labelled as I, II and III. This study is concerned with the secondary peak at 177 °C (peak III). The electron trap responsible for peak III is stable at ambient temperature as determined by monitoring the peak intensity after various delays between irradiation and measurement. The activation energy and frequency factor of the peak were estimated as ~1.24 eV and ~10¹² s⁻¹ respectively. The dose response of the peak in the range 1–300 Gy is sublinear. The influence of either partial heating or irradiation dose on the peak position suggest that the peak follows non-first-order kinetics.
- Full Text: false
- Date Issued: 2018
- Authors: Thomas, Sunil , Chithambo, Makaiko L
- Date: 2018
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/110007 , vital:33213 , DOI: 10.1016/j.jlumin.2018.08.077
- Description: Thermoluminescence of a high temperature secondary glow-peak in natural quartz annealed at 900 °C is reported. The glow-curve of a sample irradiated to 10 Gy and measured at 1 °C/s shows three peaks; the main peak at 71 °C and two other weaker-intensity peaks at 125 °C and 177 °C. For reference, the peaks are labelled as I, II and III. This study is concerned with the secondary peak at 177 °C (peak III). The electron trap responsible for peak III is stable at ambient temperature as determined by monitoring the peak intensity after various delays between irradiation and measurement. The activation energy and frequency factor of the peak were estimated as ~1.24 eV and ~10¹² s⁻¹ respectively. The dose response of the peak in the range 1–300 Gy is sublinear. The influence of either partial heating or irradiation dose on the peak position suggest that the peak follows non-first-order kinetics.
- Full Text: false
- Date Issued: 2018
A.k.a. Breyten Breytenbach : critical approaches to his writings and paintings, J.L. Coullie and J.U. Jacobs, eds. : book review
- Authors: Vorster, A F
- Date: 2005
- Language: English
- Type: Article
- Identifier: vital:6335 , http://hdl.handle.net/10962/d1012399
- Description: a.k.a. Breyten Breytenbach brings together a collection of 14 essays by 12 scholars on the work of this remarkable South African writer, poet and painter. Designating Breytenbach as ‘South African’ is, of course, already a highly contentious act. It relates directly to the central concern of this volume (and one of the central concerns of Breytenbach’s work), namely the question of identity. The title characterises the artist’s proper name as but one in a series of constantly shifting and interchanging personas adopted in his art (and in his life, e.g. when working underground in the 1970s to contribute to the overthrow of the apartheid regime). The painting on the cover further explores the theme of the mask, with the white male figure’s face covered by a book-like object (although his eyes are partially visible through the object), and the presence of a burning hat floating in the air next to him serves as an additional link with many of his other paintings where headgear is associated with shifting identities, as pointed out by Marilet Sienaert in her essay, “The I of the Beholder: Identity and Place in the Art and Writing.” Like several of the other authors, Sienaert places great emphasis on the notion of movement or transformation as critical to Breytenbach’s thinking and creative practice. It is virtually unavoidable, given his background, that he should grapple with “the contemporary notion of ‘home’ being both everywhere and nowhere”, and that travel and nomadism should have become two of the most prominent themes in his poetry as well as his prose. Identity and creativity are both dependent upon the ability to constantly renew oneself and to “keep moving”.
- Full Text:
- Date Issued: 2005
- Authors: Vorster, A F
- Date: 2005
- Language: English
- Type: Article
- Identifier: vital:6335 , http://hdl.handle.net/10962/d1012399
- Description: a.k.a. Breyten Breytenbach brings together a collection of 14 essays by 12 scholars on the work of this remarkable South African writer, poet and painter. Designating Breytenbach as ‘South African’ is, of course, already a highly contentious act. It relates directly to the central concern of this volume (and one of the central concerns of Breytenbach’s work), namely the question of identity. The title characterises the artist’s proper name as but one in a series of constantly shifting and interchanging personas adopted in his art (and in his life, e.g. when working underground in the 1970s to contribute to the overthrow of the apartheid regime). The painting on the cover further explores the theme of the mask, with the white male figure’s face covered by a book-like object (although his eyes are partially visible through the object), and the presence of a burning hat floating in the air next to him serves as an additional link with many of his other paintings where headgear is associated with shifting identities, as pointed out by Marilet Sienaert in her essay, “The I of the Beholder: Identity and Place in the Art and Writing.” Like several of the other authors, Sienaert places great emphasis on the notion of movement or transformation as critical to Breytenbach’s thinking and creative practice. It is virtually unavoidable, given his background, that he should grapple with “the contemporary notion of ‘home’ being both everywhere and nowhere”, and that travel and nomadism should have become two of the most prominent themes in his poetry as well as his prose. Identity and creativity are both dependent upon the ability to constantly renew oneself and to “keep moving”.
- Full Text:
- Date Issued: 2005
Absent fathers: psychological and socio-economic implications for black children and directions for future research
- Magqamfana, Simnikiwe H, Bazana, Sandiso
- Authors: Magqamfana, Simnikiwe H , Bazana, Sandiso
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/163443 , vital:41038 , DOI: 10.1080/14330237.2020.1744299
- Description: This study investigated fathers’ absence influences on the self-perceptions of South African young adults. Informants were five black university students (two females, three males; age range 20 to 28 years). They responded to semi-structured face-to-face interviews on self-perceptions from having matured in the absence of their biological fathers. Thematic analysis of the data revealed that the informants consider the father-absence when they grapple with material well-being shortage. Participants had mixed perceptions about the psychosocial effects on them from father-absence, with some believing to be thriving despite a history of father-absence. Overall, the findings suggest a need for caution in pathologising young adults with a history of father-absence as necessarily deprived.
- Full Text:
- Date Issued: 2020
- Authors: Magqamfana, Simnikiwe H , Bazana, Sandiso
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/163443 , vital:41038 , DOI: 10.1080/14330237.2020.1744299
- Description: This study investigated fathers’ absence influences on the self-perceptions of South African young adults. Informants were five black university students (two females, three males; age range 20 to 28 years). They responded to semi-structured face-to-face interviews on self-perceptions from having matured in the absence of their biological fathers. Thematic analysis of the data revealed that the informants consider the father-absence when they grapple with material well-being shortage. Participants had mixed perceptions about the psychosocial effects on them from father-absence, with some believing to be thriving despite a history of father-absence. Overall, the findings suggest a need for caution in pathologising young adults with a history of father-absence as necessarily deprived.
- Full Text:
- Date Issued: 2020
Academic Practices & Reasoning: APR 122
- Authors: Scott, R , Blatchford, M
- Date: 2011-01
- Language: English
- Type: Examination paper
- Identifier: vital:18248 , http://hdl.handle.net/10353/d1011242
- Description: Academic Practices and Reasoning: APR 122, supplementary examination Jan/Feb 2012.
- Full Text: false
- Date Issued: 2011-01
- Authors: Scott, R , Blatchford, M
- Date: 2011-01
- Language: English
- Type: Examination paper
- Identifier: vital:18248 , http://hdl.handle.net/10353/d1011242
- Description: Academic Practices and Reasoning: APR 122, supplementary examination Jan/Feb 2012.
- Full Text: false
- Date Issued: 2011-01
Academic Practices and Reasoning: APR 111
- Authors: Scott,R , Blatchford, M
- Date: 2012-06
- Language: English
- Type: Examination paper
- Identifier: vital:18270 , http://hdl.handle.net/10353/d1011266
- Description: Academic Practices and Reasoning: APR 111, special examination June 2012.
- Full Text: false
- Date Issued: 2012-06
- Authors: Scott,R , Blatchford, M
- Date: 2012-06
- Language: English
- Type: Examination paper
- Identifier: vital:18270 , http://hdl.handle.net/10353/d1011266
- Description: Academic Practices and Reasoning: APR 111, special examination June 2012.
- Full Text: false
- Date Issued: 2012-06
Academic Practices and Reasoning: APR 122
- Authors: Scott, R , Blatchford, M
- Date: 2010-01
- Language: English
- Type: Examination paper
- Identifier: vital:18236 , http://hdl.handle.net/10353/d1011228
- Description: Academic Practices and Reasoning: APR 122, Jan/Feb supplementary examination 2010.
- Full Text: false
- Date Issued: 2010-01
- Authors: Scott, R , Blatchford, M
- Date: 2010-01
- Language: English
- Type: Examination paper
- Identifier: vital:18236 , http://hdl.handle.net/10353/d1011228
- Description: Academic Practices and Reasoning: APR 122, Jan/Feb supplementary examination 2010.
- Full Text: false
- Date Issued: 2010-01
Academic Practices and Reasoning: APR 122
- Authors: Scott, R , Blatchford, M
- Date: 2009-11
- Language: English
- Type: Examination paper
- Identifier: vital:18273 , http://hdl.handle.net/10353/d1011269
- Description: Academic Practices and Reasoning: APR 122, examination November 2009.
- Full Text: false
- Date Issued: 2009-11
- Authors: Scott, R , Blatchford, M
- Date: 2009-11
- Language: English
- Type: Examination paper
- Identifier: vital:18273 , http://hdl.handle.net/10353/d1011269
- Description: Academic Practices and Reasoning: APR 122, examination November 2009.
- Full Text: false
- Date Issued: 2009-11