Young pregnant women and public health
- Macleod, Catriona I, Feltham-King, Tracey
- Authors: Macleod, Catriona I , Feltham-King, Tracey
- Date: 2020
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/298572 , vital:57717 , xlink:href="https://doi.org/10.1080/09581596.2019.1573313"
- Description: In this paper, we outline a critical reparative justice/care approach to adolescent reproductive health as an alternative to the standard public health response to ‘teenage pregnancy’. Joining an increasing body of critical scholarship that calls for nuance in understanding reproduction amongst young people, we draw, in this paper, on data generated from an ethnographic study conducted in antenatal care units in an Eastern Cape township in South Africa. To illustrate the approach we propose, we home in on five case studies that highlight the variability of young women’s lives, the multiple injustices they experience, and the agency they demonstrate in negotiating their way through pregnancy and birth. Injustices evident in these cases centre on sexual violence, rape myths, education system failures, health system failures, shaming and stigmatising practices, socio-economic precariousness, absent male partners, and denial of services. We outline how the reparative justice approach that highlights repair and support for social and health injustices at the individual and collective level as well as at the material and symbolic level may be taken up to ensure reproductive justice for young pregnant women.
- Full Text:
- Date Issued: 2020
- Authors: Macleod, Catriona I , Feltham-King, Tracey
- Date: 2020
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/298572 , vital:57717 , xlink:href="https://doi.org/10.1080/09581596.2019.1573313"
- Description: In this paper, we outline a critical reparative justice/care approach to adolescent reproductive health as an alternative to the standard public health response to ‘teenage pregnancy’. Joining an increasing body of critical scholarship that calls for nuance in understanding reproduction amongst young people, we draw, in this paper, on data generated from an ethnographic study conducted in antenatal care units in an Eastern Cape township in South Africa. To illustrate the approach we propose, we home in on five case studies that highlight the variability of young women’s lives, the multiple injustices they experience, and the agency they demonstrate in negotiating their way through pregnancy and birth. Injustices evident in these cases centre on sexual violence, rape myths, education system failures, health system failures, shaming and stigmatising practices, socio-economic precariousness, absent male partners, and denial of services. We outline how the reparative justice approach that highlights repair and support for social and health injustices at the individual and collective level as well as at the material and symbolic level may be taken up to ensure reproductive justice for young pregnant women.
- Full Text:
- Date Issued: 2020
From Baudelaire to Beardsley: some thoughts on Poe's beast as an indicator of the tastes and fears of nineteenth-century Europe
- Authors: Beard, Margot
- Date: 2017
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/147781 , vital:38672 , https://doi.org/10.1080/00043389.2001.11876980
- Description: Charles Baudelaire (1821 1867) was one of the major influences on the French Decadent poets of the late nineteenth century whose aesthetic principles were shared, to a large extent, by a group of English poets and artists, among whom was Aubrey Beardsley (1872 1898). One of the major influences on Baude laire had been the American, Edgar Allan Poe (1809 1849), in whose short stories and poems Baudelaire had recognised a kindred spirit. Some intriguing aspects of changing nine teenth century attitudes emerge from a study of Baudelaire's 1856 translation of Poe's `The Murders in the Rue Morgue' and Beardsley's 1893 illustration to this story.
- Full Text:
- Date Issued: 2017
- Authors: Beard, Margot
- Date: 2017
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/147781 , vital:38672 , https://doi.org/10.1080/00043389.2001.11876980
- Description: Charles Baudelaire (1821 1867) was one of the major influences on the French Decadent poets of the late nineteenth century whose aesthetic principles were shared, to a large extent, by a group of English poets and artists, among whom was Aubrey Beardsley (1872 1898). One of the major influences on Baude laire had been the American, Edgar Allan Poe (1809 1849), in whose short stories and poems Baudelaire had recognised a kindred spirit. Some intriguing aspects of changing nine teenth century attitudes emerge from a study of Baudelaire's 1856 translation of Poe's `The Murders in the Rue Morgue' and Beardsley's 1893 illustration to this story.
- Full Text:
- Date Issued: 2017
Developing biosensors in developing countries: South Africa as a case study
- Fogel, Ronen, Limson, Janice L
- Authors: Fogel, Ronen , Limson, Janice L
- Date: 2016
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/431661 , vital:72794 , xlink:href="https://doi.org/10.3390/bios6010005"
- Description: A mini-review of the reported biosensor research occurring in South Africa evidences a strong emphasis on electrochemical sensor research, guided by the opportunities this transduction platform holds for low-cost and robust sensing of numerous targets. Many of the reported publications centre on fundamental research into the signal transduction method, using model biorecognition elements, in line with international trends. Other research in this field is spread across several areas including: the application of nanotechnology; the identification and validation of biomarkers; development and testing of biorecognition agents (antibodies and aptamers) and design of electro-catalysts, most notably metallophthalocyanine. Biosensor targets commonly featured were pesticides and metals. Areas of regional import to sub-Saharan Africa, such as HIV/AIDs and tuberculosis diagnosis, are also apparent in a review of the available literature. Irrespective of the targets, the challenge to the effective deployment of such sensors remains shaped by social and economic realities such that the requirements thereof are for low-cost and universally easy to operate devices for field settings. While it is difficult to disentangle the intertwined roles of national policy, grant funding availability and, certainly, of global trends in shaping areas of emphasis in research, most notable is the strong role that nanotechnology, and to a certain extent biotechnology, plays in research regarding biosensor construction. Stronger emphasis on collaboration between scientists in theoretical modelling, nanomaterials application and or relevant stakeholders in the specific field (e.g., food or health monitoring) and researchers in biosensor design may help evolve focused research efforts towards development and deployment of low-cost biosensors.
- Full Text:
- Date Issued: 2016
- Authors: Fogel, Ronen , Limson, Janice L
- Date: 2016
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/431661 , vital:72794 , xlink:href="https://doi.org/10.3390/bios6010005"
- Description: A mini-review of the reported biosensor research occurring in South Africa evidences a strong emphasis on electrochemical sensor research, guided by the opportunities this transduction platform holds for low-cost and robust sensing of numerous targets. Many of the reported publications centre on fundamental research into the signal transduction method, using model biorecognition elements, in line with international trends. Other research in this field is spread across several areas including: the application of nanotechnology; the identification and validation of biomarkers; development and testing of biorecognition agents (antibodies and aptamers) and design of electro-catalysts, most notably metallophthalocyanine. Biosensor targets commonly featured were pesticides and metals. Areas of regional import to sub-Saharan Africa, such as HIV/AIDs and tuberculosis diagnosis, are also apparent in a review of the available literature. Irrespective of the targets, the challenge to the effective deployment of such sensors remains shaped by social and economic realities such that the requirements thereof are for low-cost and universally easy to operate devices for field settings. While it is difficult to disentangle the intertwined roles of national policy, grant funding availability and, certainly, of global trends in shaping areas of emphasis in research, most notable is the strong role that nanotechnology, and to a certain extent biotechnology, plays in research regarding biosensor construction. Stronger emphasis on collaboration between scientists in theoretical modelling, nanomaterials application and or relevant stakeholders in the specific field (e.g., food or health monitoring) and researchers in biosensor design may help evolve focused research efforts towards development and deployment of low-cost biosensors.
- Full Text:
- Date Issued: 2016
Assessment of the monkfish Lophius vomerinus resource off Namibia
- Maartens, Lima, Booth, Anthony J
- Authors: Maartens, Lima , Booth, Anthony J
- Date: 2010
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/123863 , vital:35509 , https://doi.10.2989/025776101784528926
- Description: Monkfish (Lophius vomerinus and L. vaillanti) constitute a commercially important resource off Namibia. During 1998, the Lophius resource was the fourth most important commercial resource in terms of landed mass (c. 17 000 tons) and the fifth most important commercial resource in terms of export value (U$19.8 million) of the Namibian fishing sector (Ministry of Fisheries and Marine Resources, Namibia, unpublished data). Historically, monkfish constituted an important bycatch in the trawl fishery directed at hake (Merluccius spp.), but due to increasing market demand since the early 1990s, a fishery directed at monkfish and sole (Austroglossus microlepis) has developed. The Namibian Ministry of Fisheries and Marine Resources has identified the need to develop a management plan to ensure the resource’s medium and longterm sustainability (Maartens et al. 1999). Long-term resource management plans include the identification of an assessment model to represent reality so that the implications of managing the resource in future under a range of assumptions about its present status and its future dynamics (Cochrane et al. 1998) can be examined. The aim of this study was, therefore, to assess the status of at least part of the monkfish resource using a length-based cohort assessment (Jones 1979, 1984, Sparre and Venema 1998) and an age structured production model (Punt 1994, Punt and Japp 1994, Booth and Punt 1998).
- Full Text:
- Date Issued: 2010
- Authors: Maartens, Lima , Booth, Anthony J
- Date: 2010
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/123863 , vital:35509 , https://doi.10.2989/025776101784528926
- Description: Monkfish (Lophius vomerinus and L. vaillanti) constitute a commercially important resource off Namibia. During 1998, the Lophius resource was the fourth most important commercial resource in terms of landed mass (c. 17 000 tons) and the fifth most important commercial resource in terms of export value (U$19.8 million) of the Namibian fishing sector (Ministry of Fisheries and Marine Resources, Namibia, unpublished data). Historically, monkfish constituted an important bycatch in the trawl fishery directed at hake (Merluccius spp.), but due to increasing market demand since the early 1990s, a fishery directed at monkfish and sole (Austroglossus microlepis) has developed. The Namibian Ministry of Fisheries and Marine Resources has identified the need to develop a management plan to ensure the resource’s medium and longterm sustainability (Maartens et al. 1999). Long-term resource management plans include the identification of an assessment model to represent reality so that the implications of managing the resource in future under a range of assumptions about its present status and its future dynamics (Cochrane et al. 1998) can be examined. The aim of this study was, therefore, to assess the status of at least part of the monkfish resource using a length-based cohort assessment (Jones 1979, 1984, Sparre and Venema 1998) and an age structured production model (Punt 1994, Punt and Japp 1994, Booth and Punt 1998).
- Full Text:
- Date Issued: 2010
Quantifying commercial catch and effort of monkfish Lophius vomerinus and L. vaillanti off Namibia
- Maartens, Lima, Booth, Anthony J
- Authors: Maartens, Lima , Booth, Anthony J
- Date: 2010
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/125786 , vital:35817 , https://doi.10.2989/025776101784528999
- Description: Mark-recapture models do not distinguish how ‘‘deaths’’ accrue to marked animals in the population. If animals lose their tags, then recaptures will be fewer than expected and estimates of survival will be underestimated (Arnason and Mills, 1981; McDonald et al., 2003). Similarly, if the non-reporting rate is unknown and assumed to be negligible, as is the case in some tagging studies (e.g. Cliff et al., 1996, for white sharks Carcharodon carcharias), the probability of capture can be underestimated. The effects of both these problems, inherent in cooperative tagging programmes, lead to too few tagged fish being recovered, with a positive bias on the estimation of population size. These effects are most pronounced when capture probability is low and fewer tags are available for recapture (McDonald et al., 2003).
- Full Text:
- Date Issued: 2010
- Authors: Maartens, Lima , Booth, Anthony J
- Date: 2010
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/125786 , vital:35817 , https://doi.10.2989/025776101784528999
- Description: Mark-recapture models do not distinguish how ‘‘deaths’’ accrue to marked animals in the population. If animals lose their tags, then recaptures will be fewer than expected and estimates of survival will be underestimated (Arnason and Mills, 1981; McDonald et al., 2003). Similarly, if the non-reporting rate is unknown and assumed to be negligible, as is the case in some tagging studies (e.g. Cliff et al., 1996, for white sharks Carcharodon carcharias), the probability of capture can be underestimated. The effects of both these problems, inherent in cooperative tagging programmes, lead to too few tagged fish being recovered, with a positive bias on the estimation of population size. These effects are most pronounced when capture probability is low and fewer tags are available for recapture (McDonald et al., 2003).
- Full Text:
- Date Issued: 2010
Problematising race for journalists: critical reflections on the South African Human Rights Commission Inquiry into media racism
- Authors: Berger, Guy
- Date: 2007
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/147913 , vital:38684 , DOI: 10.1080/02560240185310081
- Description: How journalists report race and racism was at the centre of the South African Human Rights Commission (SAHRC) Inquiry into racism in the media. A critical analysis of the conceptual assumptions in the Inquiry's Final Report, however, reveals serious limitations to the enterprise. In particular the flawed conceptualisations, plus the generalised character of the findings are of little help in assisting the momentum of eradicating racism in South African media, and for linking race transformation to issues of class, gender, sexual orientation and xenophobia. This article identifies the problems as race essentialism and a relativism about what constitutes racism. It argues instead that journalists need the concept of racialisation in order to change their reporting. The argument upholds the desired role of the South African media as one that contributes to a non-racial, as opposed to a multi-racial, society.
- Full Text:
- Date Issued: 2007
- Authors: Berger, Guy
- Date: 2007
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/147913 , vital:38684 , DOI: 10.1080/02560240185310081
- Description: How journalists report race and racism was at the centre of the South African Human Rights Commission (SAHRC) Inquiry into racism in the media. A critical analysis of the conceptual assumptions in the Inquiry's Final Report, however, reveals serious limitations to the enterprise. In particular the flawed conceptualisations, plus the generalised character of the findings are of little help in assisting the momentum of eradicating racism in South African media, and for linking race transformation to issues of class, gender, sexual orientation and xenophobia. This article identifies the problems as race essentialism and a relativism about what constitutes racism. It argues instead that journalists need the concept of racialisation in order to change their reporting. The argument upholds the desired role of the South African media as one that contributes to a non-racial, as opposed to a multi-racial, society.
- Full Text:
- Date Issued: 2007
First record of predation by the alien invasive freshwater fish Micropterus salmoides L.(Centrarchidae) on migrating estuarine fishes in South Africa
- Weyl, Olaf L F, Lewis, Hylton
- Authors: Weyl, Olaf L F , Lewis, Hylton
- Date: 2006
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/446852 , vital:74565 , https://doi.org/10.1080/15627020.2006.11407365
- Description: This study presents results from stomach content analysis of 123 largemouth bass, Micropterus salmoides, sampled at the mouth of the fishway leading into a 3 m high weir at the tidal limit of the Kowie River, Eastern Cape Province (33°32‘39“S, 26°46‘ 52.3“E). Stomach contents from small (120–240 mm fork length, FL) and large (250–440mm FL) fish were analysed separately. Fish were the dominant prey item in small bass, followed by terrestrial insects and Potamonautes sp. In large bass, Potamonautes sp. dominated the stomach contents, while fish were less dominant and other prey items were considered incidental. Estuarine fish species, Monodactylus falciformis, and two species of the family Mugilidae, Mugil cephalus and Myxus capensis, were the most common fish prey in both size classes of M. salmoides. These results are the first evidence of the alien M. salmoides preying on these three indigenous estuarine species during their migration into fresh water.
- Full Text:
- Date Issued: 2006
- Authors: Weyl, Olaf L F , Lewis, Hylton
- Date: 2006
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/446852 , vital:74565 , https://doi.org/10.1080/15627020.2006.11407365
- Description: This study presents results from stomach content analysis of 123 largemouth bass, Micropterus salmoides, sampled at the mouth of the fishway leading into a 3 m high weir at the tidal limit of the Kowie River, Eastern Cape Province (33°32‘39“S, 26°46‘ 52.3“E). Stomach contents from small (120–240 mm fork length, FL) and large (250–440mm FL) fish were analysed separately. Fish were the dominant prey item in small bass, followed by terrestrial insects and Potamonautes sp. In large bass, Potamonautes sp. dominated the stomach contents, while fish were less dominant and other prey items were considered incidental. Estuarine fish species, Monodactylus falciformis, and two species of the family Mugilidae, Mugil cephalus and Myxus capensis, were the most common fish prey in both size classes of M. salmoides. These results are the first evidence of the alien M. salmoides preying on these three indigenous estuarine species during their migration into fresh water.
- Full Text:
- Date Issued: 2006
Hierarchical rule generalisation for speaker identification in fiction books
- Glass, Kevin R, Bangay, Shaun D
- Authors: Glass, Kevin R , Bangay, Shaun D
- Date: 2006
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/433174 , vital:72949 , https://doi.org/10.1145/1216262.1216266
- Description: This paper presents a hierarchical pattern matching and generalisation technique which is applied to the problem of locating the correct speaker of quoted speech found in fiction books. Patterns from a training set are generalised to create a small number of rules, which can be used to identify items of interest within the text. The pattern matching technique is applied to finding the Speech-Verb, Actor and Speaker of quotes found in fiction books. The technique performs well over the training data, resulting in rule-sets many times smaller than the training set, but providing very high accuracy. While the rule-set generalised from one book is less effective when applied to different books than an approach based on hand coded heuristics, performance is comparable when testing on data closely related to the training set.
- Full Text:
- Date Issued: 2006
- Authors: Glass, Kevin R , Bangay, Shaun D
- Date: 2006
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/433174 , vital:72949 , https://doi.org/10.1145/1216262.1216266
- Description: This paper presents a hierarchical pattern matching and generalisation technique which is applied to the problem of locating the correct speaker of quoted speech found in fiction books. Patterns from a training set are generalised to create a small number of rules, which can be used to identify items of interest within the text. The pattern matching technique is applied to finding the Speech-Verb, Actor and Speaker of quotes found in fiction books. The technique performs well over the training data, resulting in rule-sets many times smaller than the training set, but providing very high accuracy. While the rule-set generalised from one book is less effective when applied to different books than an approach based on hand coded heuristics, performance is comparable when testing on data closely related to the training set.
- Full Text:
- Date Issued: 2006
Pavoclinus caeruleopunctatus, a new species of clinid fish (Perciformes: Clinidae) from South Africa
- Zsilavecz, Guido, J.L.B. Smith Institute of Ichthyology
- Authors: Zsilavecz, Guido , J.L.B. Smith Institute of Ichthyology
- Date: 2001-08
- Subjects: Clinidae -- South Atlantic Ocean -- Classification , Clinidae -- South Africa -- Classification
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/71066 , vital:29774 , 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. 66 , A new species of clinid fish, Pavoclinns caeruleopunctatus, is described from specimens collected and observed in 6 - 25 m, around the Cape Peninsula, on the southwest coast of South Africa. Pavoclinus caeruleopunctatus is distinguished from similar species by the first 3 dorsal-fin spines forming a moderate crest, a notch between the 3rd and 4th dorsal-fin spines, 1 - 3 soft dorsal rays, an anteriorly rounded head profile, and colour pattern; most characteristic in live specimens are the vivid blue spots in front and behind the eye, and also usually on the flanks.
- Full Text:
- Date Issued: 2001-08
Pavoclinus caeruleopunctatus, a new species of clinid fish (Perciformes: Clinidae) from South Africa
- Authors: Zsilavecz, Guido , J.L.B. Smith Institute of Ichthyology
- Date: 2001-08
- Subjects: Clinidae -- South Atlantic Ocean -- Classification , Clinidae -- South Africa -- Classification
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/71066 , vital:29774 , 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. 66 , A new species of clinid fish, Pavoclinns caeruleopunctatus, is described from specimens collected and observed in 6 - 25 m, around the Cape Peninsula, on the southwest coast of South Africa. Pavoclinus caeruleopunctatus is distinguished from similar species by the first 3 dorsal-fin spines forming a moderate crest, a notch between the 3rd and 4th dorsal-fin spines, 1 - 3 soft dorsal rays, an anteriorly rounded head profile, and colour pattern; most characteristic in live specimens are the vivid blue spots in front and behind the eye, and also usually on the flanks.
- Full Text:
- Date Issued: 2001-08
"From digital to darkroom"
- Authors: Meintjes, Anthony Arthur
- Date: 2001
- Subjects: Photography Image processing Photography -- Digital techniques Computer art
- Language: English
- Type: Thesis , Masters , MFA
- Identifier: vital:2451 , http://hdl.handle.net/10962/d1007418
- Full Text:
- Date Issued: 2001
- Authors: Meintjes, Anthony Arthur
- Date: 2001
- Subjects: Photography Image processing Photography -- Digital techniques Computer art
- Language: English
- Type: Thesis , Masters , MFA
- Identifier: vital:2451 , http://hdl.handle.net/10962/d1007418
- Full Text:
- Date Issued: 2001
'n Besluitnemings ondersteuningsmodel vir die bepaling van die mees geskikte wisselboustelsel-ritme vir gemengde graanboerderye in die Koeberg
- Authors: Potgieter, F J
- Date: 2001
- Subjects: Grain -- South Africa , Crop rotation
- Language: Afrikaans
- Type: Thesis , Masters , MTech
- Identifier: vital:10948 , http://hdl.handle.net/10948/43 , Grain -- South Africa , Crop rotation
- Description: Weens die unieke eiesoortigheid van die mens is sy behoeftes vanselfsprekend uiters divers. Wat vir die een persoon prioriteit is, mag vir sy buurman geensins belangrik wees nie. Dit is egter ook ’n gegewe, dat die mens heelwat gemeenskaplike ervarings, emosies en behoeftes deel. Een hiervan is die behoefte wat hy het om te weet dat die besluit wat hy gaan of wil neem die regte een binne die konteks van sy keuse mag wees. Die woord ‘behoefte’ kan waarskynlik in hierdie geval vervang word met die begrip ‘genade’. Sonder om 'n platvorm vir debat te skep, word die stelling gehandhaaf dat ‘genade’ slegs van die Skepper afkomstig is. Met hierdie stelling as agtergrond was dit 'n minder aangename ervaring om vir feitlik twintig jaar te moes toekyk hoe koringboere hul besluite, veral met betrekking tot die samestelling van wisselboustelsels, moes neem, klaarblyklik in totale gebrek aan die gawe van ‘genade’. Nodeloos om te sê, met gepaardgaande negatiewe gevolge. Die meer gemaklike verontskuldiging is om te redeneer dat ons Skepper relatief suinig is met die uitdeel van sy ‘genade’. Alvorens die begrip van Prediker 10:10 nog nie ten volle begryp is nie, kan so 'n stelling dalk makliker gemaak word. Hierdie gedeelte uit die Skrif sê in werklikheid die teenoorgestelde – dat God baie vrygewig is met Sy ‘genade’, maar dat die mens sy gesonde verstand moet gebruik om dit ten volle te benut. Die wens is dat hierdie studie, 'n deel sal uitmaak van die proses om die byl skerp te maak om sodoende die houtkap-proses effektief uit te voer.
- Full Text:
- Date Issued: 2001
- Authors: Potgieter, F J
- Date: 2001
- Subjects: Grain -- South Africa , Crop rotation
- Language: Afrikaans
- Type: Thesis , Masters , MTech
- Identifier: vital:10948 , http://hdl.handle.net/10948/43 , Grain -- South Africa , Crop rotation
- Description: Weens die unieke eiesoortigheid van die mens is sy behoeftes vanselfsprekend uiters divers. Wat vir die een persoon prioriteit is, mag vir sy buurman geensins belangrik wees nie. Dit is egter ook ’n gegewe, dat die mens heelwat gemeenskaplike ervarings, emosies en behoeftes deel. Een hiervan is die behoefte wat hy het om te weet dat die besluit wat hy gaan of wil neem die regte een binne die konteks van sy keuse mag wees. Die woord ‘behoefte’ kan waarskynlik in hierdie geval vervang word met die begrip ‘genade’. Sonder om 'n platvorm vir debat te skep, word die stelling gehandhaaf dat ‘genade’ slegs van die Skepper afkomstig is. Met hierdie stelling as agtergrond was dit 'n minder aangename ervaring om vir feitlik twintig jaar te moes toekyk hoe koringboere hul besluite, veral met betrekking tot die samestelling van wisselboustelsels, moes neem, klaarblyklik in totale gebrek aan die gawe van ‘genade’. Nodeloos om te sê, met gepaardgaande negatiewe gevolge. Die meer gemaklike verontskuldiging is om te redeneer dat ons Skepper relatief suinig is met die uitdeel van sy ‘genade’. Alvorens die begrip van Prediker 10:10 nog nie ten volle begryp is nie, kan so 'n stelling dalk makliker gemaak word. Hierdie gedeelte uit die Skrif sê in werklikheid die teenoorgestelde – dat God baie vrygewig is met Sy ‘genade’, maar dat die mens sy gesonde verstand moet gebruik om dit ten volle te benut. Die wens is dat hierdie studie, 'n deel sal uitmaak van die proses om die byl skerp te maak om sodoende die houtkap-proses effektief uit te voer.
- Full Text:
- Date Issued: 2001
'Respecting the racist’: racism at work
- Authors: Martin, Tom
- Date: 2001
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/159079 , vital:40265 , https://hdl.handle.net/10520/EJC1447221
- Description: Racists can believe some pretty odd things, I'm not talking about the completely out-of-left field, lunatic fringe racists who might believe that God deems that white people have dominion over black people, or that there is a Jewish conspiracy to take over the world.
- Full Text:
- Date Issued: 2001
- Authors: Martin, Tom
- Date: 2001
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/159079 , vital:40265 , https://hdl.handle.net/10520/EJC1447221
- Description: Racists can believe some pretty odd things, I'm not talking about the completely out-of-left field, lunatic fringe racists who might believe that God deems that white people have dominion over black people, or that there is a Jewish conspiracy to take over the world.
- Full Text:
- Date Issued: 2001
[Research projects]
- Authors: Muluse, Lungile J
- Date: 2001
- Subjects: History -- Study and teaching -- South Africa -- Textbooks -- Evaluation History -- Study and teaching South Africa -- History -- Textbooks Toise Senior Secondary School High schools -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1739 , http://hdl.handle.net/10962/d1003623
- Description: This study is a situational analysis of a school located at Nonkcampa village, just ten kilometres from King William’s Town, west of the national road between Peddie and King William’s Town. Toise Senior Secondary School is in the former Ciskei region. The Bulembu / Bisho airport is just next to our school. My focus on Toise Senior Secondary School, provides me as the principal of the school with a golden opportunity to find out more about the school. As a relative newcomer to the school this study also enables me to look at the school community, from this particular focal point. As this is a situational analysis, my focus will be on the history, the biophysical and socio-political aspects that influenced the development of the school to the present. In this way I will be able to analyse the school’s readiness to implement the new Out-Comes-Based Education (OBE) Curriculum soon to be implemented at secondary school level.
- Full Text:
- Date Issued: 2001
- Authors: Muluse, Lungile J
- Date: 2001
- Subjects: History -- Study and teaching -- South Africa -- Textbooks -- Evaluation History -- Study and teaching South Africa -- History -- Textbooks Toise Senior Secondary School High schools -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1739 , http://hdl.handle.net/10962/d1003623
- Description: This study is a situational analysis of a school located at Nonkcampa village, just ten kilometres from King William’s Town, west of the national road between Peddie and King William’s Town. Toise Senior Secondary School is in the former Ciskei region. The Bulembu / Bisho airport is just next to our school. My focus on Toise Senior Secondary School, provides me as the principal of the school with a golden opportunity to find out more about the school. As a relative newcomer to the school this study also enables me to look at the school community, from this particular focal point. As this is a situational analysis, my focus will be on the history, the biophysical and socio-political aspects that influenced the development of the school to the present. In this way I will be able to analyse the school’s readiness to implement the new Out-Comes-Based Education (OBE) Curriculum soon to be implemented at secondary school level.
- Full Text:
- Date Issued: 2001
A conceptual object-oriented model to support educators in an outcomes-based environment
- Authors: Harmse, Rudi Gerhard
- Date: 2001
- Subjects: Competency-based education -- South Africa , Curriculum-based assessment -- South Africa , Object-oriented databases
- Language: English
- Type: Thesis , Masters , MTech (Information Technology)
- Identifier: vital:10794 , http://hdl.handle.net/10948/47 , Competency-based education -- South Africa , Curriculum-based assessment -- South Africa , Object-oriented databases
- Description: The introduction of outcomes-based education (OBE) in South Africa has led to a new learner-centred approach with an emphasis on the outcomes that the learners need to achieve. With this learner-centred focus has come a greater need for record keeping. It is now necessary to track each learner’s progress towards the attainment of the learning outcomes. This progress is tracked in relation to assessment standards that are defined for every learning outcome. These assessment standards define the results expected of learners at certain stages in their development. The new OBE system has emphasised accountability and this is expressed in a requirement to keep evidence to justify the assessment results given. The large numbers of learners and the increased managerial demand of OBE cause problems to educators who may find themselves unable to keep track of the learners’ progress under such conditions. This dissertation investigates the structure of the new OBE system as well as its assessment and evidence requirements. From this the features required from a support system for educators in an OBE environment are determined. The supporting processes needed to enable these features to be implemented, as well as the storage requirements of such a system are identified. In addition to OBE, the field of Computer Integrated Learning Environments (CILEs) and Intelligent Tutoring Systems (ITSs) are investigated and useful details identified are added to the requirements for an OBE support system. The dissertation then presents an object-oriented conceptual model of the items that need to be stored in order to allow the features of an OBE support system to be implemented. The relationships between these items are also indicated in this model.
- Full Text:
- Date Issued: 2001
- Authors: Harmse, Rudi Gerhard
- Date: 2001
- Subjects: Competency-based education -- South Africa , Curriculum-based assessment -- South Africa , Object-oriented databases
- Language: English
- Type: Thesis , Masters , MTech (Information Technology)
- Identifier: vital:10794 , http://hdl.handle.net/10948/47 , Competency-based education -- South Africa , Curriculum-based assessment -- South Africa , Object-oriented databases
- Description: The introduction of outcomes-based education (OBE) in South Africa has led to a new learner-centred approach with an emphasis on the outcomes that the learners need to achieve. With this learner-centred focus has come a greater need for record keeping. It is now necessary to track each learner’s progress towards the attainment of the learning outcomes. This progress is tracked in relation to assessment standards that are defined for every learning outcome. These assessment standards define the results expected of learners at certain stages in their development. The new OBE system has emphasised accountability and this is expressed in a requirement to keep evidence to justify the assessment results given. The large numbers of learners and the increased managerial demand of OBE cause problems to educators who may find themselves unable to keep track of the learners’ progress under such conditions. This dissertation investigates the structure of the new OBE system as well as its assessment and evidence requirements. From this the features required from a support system for educators in an OBE environment are determined. The supporting processes needed to enable these features to be implemented, as well as the storage requirements of such a system are identified. In addition to OBE, the field of Computer Integrated Learning Environments (CILEs) and Intelligent Tutoring Systems (ITSs) are investigated and useful details identified are added to the requirements for an OBE support system. The dissertation then presents an object-oriented conceptual model of the items that need to be stored in order to allow the features of an OBE support system to be implemented. The relationships between these items are also indicated in this model.
- Full Text:
- Date Issued: 2001
A critical evaluation of the Sibanye Mentoring Programme implemented by the Border Cricket Board
- Authors: Dixon, Barry Nolan James
- Date: 2001
- Subjects: Sibanye Mentoring Programme , Border Cricket Board , Mentoring in business
- Language: English
- Type: Thesis , Masters , MTech (Business Administration)
- Identifier: vital:10900 , http://hdl.handle.net/10948/49 , Sibanye Mentoring Programme , Border Cricket Board , Mentoring in business
- Description: The research problemaddressed in this study was critically evaluate whether the Sibanye Mentoring Project of the Border Cricket Board is an effective tool in the development of black cricket players. To achieve this objective an analysis was made as to why mentoring is essential in today’s business. The study discussed the implications of mentoring and how to use it to enhance employment equity. An integrated model for mentoring was investigated using relevant literature to identify the key elements in developing and maintaining a successful mentoring programme. Each factor of the model was broken down into dimensions that were then analysed using sources researched during the literature study. The theoretical model was then used to develop a questionnaire to test the degree to which the implementation of the Sibanye Mentoring Project of the Border Cricket Board concurred with the literature study. The empirical results obtained indicate a strong concurrence with the theoretical model for mentoring. The conclusions drawn and the recommendations suggested in the study proved without a doubt that mentoring can be an effective tool in the development of young black cricketers.
- Full Text:
- Date Issued: 2001
- Authors: Dixon, Barry Nolan James
- Date: 2001
- Subjects: Sibanye Mentoring Programme , Border Cricket Board , Mentoring in business
- Language: English
- Type: Thesis , Masters , MTech (Business Administration)
- Identifier: vital:10900 , http://hdl.handle.net/10948/49 , Sibanye Mentoring Programme , Border Cricket Board , Mentoring in business
- Description: The research problemaddressed in this study was critically evaluate whether the Sibanye Mentoring Project of the Border Cricket Board is an effective tool in the development of black cricket players. To achieve this objective an analysis was made as to why mentoring is essential in today’s business. The study discussed the implications of mentoring and how to use it to enhance employment equity. An integrated model for mentoring was investigated using relevant literature to identify the key elements in developing and maintaining a successful mentoring programme. Each factor of the model was broken down into dimensions that were then analysed using sources researched during the literature study. The theoretical model was then used to develop a questionnaire to test the degree to which the implementation of the Sibanye Mentoring Project of the Border Cricket Board concurred with the literature study. The empirical results obtained indicate a strong concurrence with the theoretical model for mentoring. The conclusions drawn and the recommendations suggested in the study proved without a doubt that mentoring can be an effective tool in the development of young black cricketers.
- Full Text:
- Date Issued: 2001
A dinocephalian therapsid fauna on the Ecca–Beaufort contact in Eastern Cape Province, South Africa
- Modesto, S P, Rubidge, B S, de Klerk, William J, Welman, J
- Authors: Modesto, S P , Rubidge, B S , de Klerk, William J , Welman, J
- Date: 2001
- Language: English
- Type: text , Article
- Identifier: vital:6999 , http://hdl.handle.net/10962/d1008355
- Description: Systematic exploration of outcrops of the lowermost Beaufort Group for fossils of the oldest terrestrial vertebrates of South Africa, known only from the Permian age Eodicynodon Assemblage Zone in Western Cape Province, has resulted in the discovery of a therapsid fauna in Eastern Cape Province that is dominated by advanced dinocephalians. The new discoveries include the skull and partial skeleton of a juvenile Anteosaurus, skull and skeletal elements of tapinocephalids, as well as the skull of a scylacosaurid therocephalian. The combined presence of advanced tapinocephalid dinocephalians, the anteosaur Anteosaurus, and scylacosaurid therocephalians suggests that the rocks of the lowermost Beaufort Group in the Eastern Cape Province can be assigned to the Tapinocephalus Assemblage Zone, rather than to the Eodicynodon Assemblage Zone, which appears to be restricted to the southwestern part of the Karoo Basin. This biozone identity permits the recognition of a younger age for the Ecca-Beaufort contact eastwards along the southern margin of the basin, thus demonstrating the diachronous nature of the Ecca-Beaufort contact in the southern Karoo.
- Full Text:
- Date Issued: 2001
- Authors: Modesto, S P , Rubidge, B S , de Klerk, William J , Welman, J
- Date: 2001
- Language: English
- Type: text , Article
- Identifier: vital:6999 , http://hdl.handle.net/10962/d1008355
- Description: Systematic exploration of outcrops of the lowermost Beaufort Group for fossils of the oldest terrestrial vertebrates of South Africa, known only from the Permian age Eodicynodon Assemblage Zone in Western Cape Province, has resulted in the discovery of a therapsid fauna in Eastern Cape Province that is dominated by advanced dinocephalians. The new discoveries include the skull and partial skeleton of a juvenile Anteosaurus, skull and skeletal elements of tapinocephalids, as well as the skull of a scylacosaurid therocephalian. The combined presence of advanced tapinocephalid dinocephalians, the anteosaur Anteosaurus, and scylacosaurid therocephalians suggests that the rocks of the lowermost Beaufort Group in the Eastern Cape Province can be assigned to the Tapinocephalus Assemblage Zone, rather than to the Eodicynodon Assemblage Zone, which appears to be restricted to the southwestern part of the Karoo Basin. This biozone identity permits the recognition of a younger age for the Ecca-Beaufort contact eastwards along the southern margin of the basin, thus demonstrating the diachronous nature of the Ecca-Beaufort contact in the southern Karoo.
- Full Text:
- Date Issued: 2001
A history of land tenure in the Herschel district, Transkei
- Authors: Viedge, Bronwen Elizabeth
- Date: 2001
- Subjects: Land tenure -- South Africa -- Transkei Land tenure -- Herschel -- South Africa -- Transkei Land tenure -- History -- Herschel -- South Africa -- Transkei
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3338 , http://hdl.handle.net/10962/d1003808
- Description: A historical review of land tenure systems implemented in the Herschel district, Eastern Cape, South Africa and an analysis of the strengths and weaknesses of each system in conjunction with international experience of land tenure provide guidelines as to what elements could be incorporated in the formulation of a new integrated land tenure system. These guidelines together with the information obtained from a questionnaire survey amongst the Herschel population provide the government of South Africa with a broad outline of an integrated land tenure system that could serve to link the former homelands to the land tenure system that currently operates in the rest of the country thereby removing one of the obstacles to rural development and land redistribution.
- Full Text:
- Date Issued: 2001
- Authors: Viedge, Bronwen Elizabeth
- Date: 2001
- Subjects: Land tenure -- South Africa -- Transkei Land tenure -- Herschel -- South Africa -- Transkei Land tenure -- History -- Herschel -- South Africa -- Transkei
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3338 , http://hdl.handle.net/10962/d1003808
- Description: A historical review of land tenure systems implemented in the Herschel district, Eastern Cape, South Africa and an analysis of the strengths and weaknesses of each system in conjunction with international experience of land tenure provide guidelines as to what elements could be incorporated in the formulation of a new integrated land tenure system. These guidelines together with the information obtained from a questionnaire survey amongst the Herschel population provide the government of South Africa with a broad outline of an integrated land tenure system that could serve to link the former homelands to the land tenure system that currently operates in the rest of the country thereby removing one of the obstacles to rural development and land redistribution.
- Full Text:
- Date Issued: 2001
A Legacy Adapter Component of a 1394-Based Professional Studio Architecture
- Foss, Richard, Moses, Bob, Laubscher, Rob
- Authors: Foss, Richard , Moses, Bob , Laubscher, Rob
- Date: 2001
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/427362 , vital:72433 , https://www.aes.org/e-lib/browse.cfm?elib=9853
- Description: Digital Harmony Studio is a specification for an IEEE-1394-based studio architecture for professional audio production. The specification identifies a number of device categories, including legacy adapters. Legacy adapters provide a vital link between the pro studio environments and current pro audio devices, and will typically take the form of breakout boxes exposing legacy ports. This paper describes a reference design for the first working device within the 'Legacy Adapter' category of the specification.
- Full Text:
- Date Issued: 2001
- Authors: Foss, Richard , Moses, Bob , Laubscher, Rob
- Date: 2001
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/427362 , vital:72433 , https://www.aes.org/e-lib/browse.cfm?elib=9853
- Description: Digital Harmony Studio is a specification for an IEEE-1394-based studio architecture for professional audio production. The specification identifies a number of device categories, including legacy adapters. Legacy adapters provide a vital link between the pro studio environments and current pro audio devices, and will typically take the form of breakout boxes exposing legacy ports. This paper describes a reference design for the first working device within the 'Legacy Adapter' category of the specification.
- Full Text:
- Date Issued: 2001
A model for the enforcement of history-based separation of duty in heterogeneous workflow environments
- Authors: Papenfus, Carl
- Date: 2001
- Subjects: Reengineering (Management) , Industrial management , Workflow
- Language: English
- Type: Thesis , Masters , MTech (Information Technology)
- Identifier: vital:10797 , http://hdl.handle.net/10948/69 , Reengineering (Management) , Industrial management , Workflow
- Description: The current business world is becoming more and more dependent on electronic business. Many paper documents have been made obsolete by electronic documents, as they are easier to automate and track than paper documents. The increased use of computers within organizations has therefore, lead to an increase in use of workflow software products. The increased use of computer-based workflow has allowed organizations to conduct more types of electronic business. This has lead to electronic business crossing organizational boundaries and subsequently a need for heterogeneous workflow systems. For organizations to use heterogeneous workflow systems they must perform their duties in a seamless and secure manner. It is the author’s belief that History-based Separation of Duty principles can be used to formulate access control strategies that reflect the dynamic nature of heterogeneous workflow systems. History-based Separation of Duties relies on the workflow history of a workflow object to determine the access permissions of a particular user to that workflow object. The required workflow history data must be stored in an easily accessible manner. Although this can be achieved through a centralized approach, it is difficult to achieve in a heterogeneous workflow environment where many unrelated workflow systems are interacting across various computer platforms. The model proposed by this dissertation suggests that the workflow history data of a workflow object travels with it in the form of an electronic document, from one heterogeneous workflow environment to another, as a type of “workflow baggage”. In order for this workflow baggage to be easily accessible to all workflow systems in the heterogeneous workflow environment, it must be stored in a universal format, which is structured to allow it to be easily queried. The Extensible Markup Language (XML) is adopted as an appropriate format for representing workflow baggage. The proposed model hinges on the expression of Separation of Duty requirements in a way that is removed from the application programs. A policy-driven approach is thus adopted. The implementation of the model involves the utilization of four steps: policy expression, baggage evaluation, document processing and baggage collection. The policy expression step is responsible for developing the Separation of Duty constraints to be enforced within the workflow system. During the baggage evaluation step the baggage of the workflow object is evaluated according to the constraints of the Separation of Duty policy. Only users who do not violate any of the Separation of Duty constraints are allowed to process the workflow object. After the workflow object has been processed the information regarding the processing is recorded in the baggage collection step. The proposed model enables heterogeneous workflow systems to share access control information in a flexible and portable way.
- Full Text:
- Date Issued: 2001
- Authors: Papenfus, Carl
- Date: 2001
- Subjects: Reengineering (Management) , Industrial management , Workflow
- Language: English
- Type: Thesis , Masters , MTech (Information Technology)
- Identifier: vital:10797 , http://hdl.handle.net/10948/69 , Reengineering (Management) , Industrial management , Workflow
- Description: The current business world is becoming more and more dependent on electronic business. Many paper documents have been made obsolete by electronic documents, as they are easier to automate and track than paper documents. The increased use of computers within organizations has therefore, lead to an increase in use of workflow software products. The increased use of computer-based workflow has allowed organizations to conduct more types of electronic business. This has lead to electronic business crossing organizational boundaries and subsequently a need for heterogeneous workflow systems. For organizations to use heterogeneous workflow systems they must perform their duties in a seamless and secure manner. It is the author’s belief that History-based Separation of Duty principles can be used to formulate access control strategies that reflect the dynamic nature of heterogeneous workflow systems. History-based Separation of Duties relies on the workflow history of a workflow object to determine the access permissions of a particular user to that workflow object. The required workflow history data must be stored in an easily accessible manner. Although this can be achieved through a centralized approach, it is difficult to achieve in a heterogeneous workflow environment where many unrelated workflow systems are interacting across various computer platforms. The model proposed by this dissertation suggests that the workflow history data of a workflow object travels with it in the form of an electronic document, from one heterogeneous workflow environment to another, as a type of “workflow baggage”. In order for this workflow baggage to be easily accessible to all workflow systems in the heterogeneous workflow environment, it must be stored in a universal format, which is structured to allow it to be easily queried. The Extensible Markup Language (XML) is adopted as an appropriate format for representing workflow baggage. The proposed model hinges on the expression of Separation of Duty requirements in a way that is removed from the application programs. A policy-driven approach is thus adopted. The implementation of the model involves the utilization of four steps: policy expression, baggage evaluation, document processing and baggage collection. The policy expression step is responsible for developing the Separation of Duty constraints to be enforced within the workflow system. During the baggage evaluation step the baggage of the workflow object is evaluated according to the constraints of the Separation of Duty policy. Only users who do not violate any of the Separation of Duty constraints are allowed to process the workflow object. After the workflow object has been processed the information regarding the processing is recorded in the baggage collection step. The proposed model enables heterogeneous workflow systems to share access control information in a flexible and portable way.
- Full Text:
- Date Issued: 2001
A non-paraphyletic classification of the afrotropical genus Acanthiops Waltz & McCafferty (Ephemeroptera: Baetidae)
- Lugo-Ortiz, C R, Barber-James, Helen M, McCafferty, W P, de Moor, Ferdy C
- Authors: Lugo-Ortiz, C R , Barber-James, Helen M , McCafferty, W P , de Moor, Ferdy C
- Date: 2001
- Language: English
- Type: Article
- Identifier: vital:7006 , http://hdl.handle.net/10962/d1008384
- Description: Acanthiops Waltz & McCafferty (Ephemeroptera: Baetidae) is shown to be a monophyletic grouping defined by an anteromedially emarginate and laterally expanded and flattened pronotum in the larva. Attempts to restrict the concept of Acanthiops to Ac. marlieri (Demoulin) and re-erect Afroptiloides Gillies, syn. n., for Ac. elgonensis Lugo-Ortiz & McCafferty, Ac. griffithsi Lugo-Ortiz & McCafferty, Ac. tsitsa Barber-James & McCafferty, Ac. variegatus (Gillies), Ac. varius (Crass) and Ac. zomba Lugo-Ortiz & McCafferty, are shown to be based on inconsistent and inadequate morphological features that result in a paraphyletic taxonomy. The unofficial separate treatment of Ac. cooperi (Gillies & Wuillot) and Ac. erepens (Gillies) under Platycloeon Gillies & Wuillot is also shown to be paraphyletic. Acanthiops faro Barber-James & McCafferty, sp. n., is described from larvae from Guinea, and is distinguished by the combination of a papillate projection on labial palp segment 2, small tubercles on terga 1-8 and abdominal colour pattern. Acanthiops io Lugo-Ortiz & McCafferty, sp. n., is described from larvae from the Democratic Republic of Congo, and is distinguished by the combination of a papillate projection on palp segment 2, elongate tubercles on terga 1-9 and abdominal colour pattern. The larva of Ac. erepens (Gillies) is redescribed to incorporate morphological features and variability previously not accounted for, and larvae originally assigned to Baetis cataractae Crass are shown to be equivalent to Ac. erepens. New locality data or emendations on locality data are provided for Ac. griffithsi, Ac. tsitsa Barber-James & McCafferty and Ac. varius (Crass).
- Full Text:
- Date Issued: 2001
- Authors: Lugo-Ortiz, C R , Barber-James, Helen M , McCafferty, W P , de Moor, Ferdy C
- Date: 2001
- Language: English
- Type: Article
- Identifier: vital:7006 , http://hdl.handle.net/10962/d1008384
- Description: Acanthiops Waltz & McCafferty (Ephemeroptera: Baetidae) is shown to be a monophyletic grouping defined by an anteromedially emarginate and laterally expanded and flattened pronotum in the larva. Attempts to restrict the concept of Acanthiops to Ac. marlieri (Demoulin) and re-erect Afroptiloides Gillies, syn. n., for Ac. elgonensis Lugo-Ortiz & McCafferty, Ac. griffithsi Lugo-Ortiz & McCafferty, Ac. tsitsa Barber-James & McCafferty, Ac. variegatus (Gillies), Ac. varius (Crass) and Ac. zomba Lugo-Ortiz & McCafferty, are shown to be based on inconsistent and inadequate morphological features that result in a paraphyletic taxonomy. The unofficial separate treatment of Ac. cooperi (Gillies & Wuillot) and Ac. erepens (Gillies) under Platycloeon Gillies & Wuillot is also shown to be paraphyletic. Acanthiops faro Barber-James & McCafferty, sp. n., is described from larvae from Guinea, and is distinguished by the combination of a papillate projection on labial palp segment 2, small tubercles on terga 1-8 and abdominal colour pattern. Acanthiops io Lugo-Ortiz & McCafferty, sp. n., is described from larvae from the Democratic Republic of Congo, and is distinguished by the combination of a papillate projection on palp segment 2, elongate tubercles on terga 1-9 and abdominal colour pattern. The larva of Ac. erepens (Gillies) is redescribed to incorporate morphological features and variability previously not accounted for, and larvae originally assigned to Baetis cataractae Crass are shown to be equivalent to Ac. erepens. New locality data or emendations on locality data are provided for Ac. griffithsi, Ac. tsitsa Barber-James & McCafferty and Ac. varius (Crass).
- Full Text:
- Date Issued: 2001