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The alternative theory of state-minded protest texts in the music of democratic Nigeria:

- Osiebe, Garhe

Authors: Osiebe, Garhe
Date: 2020
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/160423 , vital:40444 , DOI: 10.1080/21681392.2020.1810085
Description: This paper centres on an alternative discourse of popular music culture in re-democratized Nigeria. Whereas much work has been done on state-minded protest music in Nigeria, studies have been reticent in appreciating the works of Fela's son, Femi; particularly within a framework of re-democratized Nigeria's equivalent of Fela's works which constituted a major alternative voice through military-ruled Nigeria. The paper is an attempt to make up this lacuna along the lines of Chris Atton’s 2006 alternative media theory. The analysis of the alternative media theory is complemented by an analysis of the texts of selected state-minded protest works from two crossover popular musicians – Blackface and Mr Raw – of re-democratized Nigeria, both of whose state-minded protest works have hitherto been unexplored by the academe.
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Date Issued: 2020

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Minding the gaps – an investigation into language policy and practice in four Eastern Cape districts

- Probyn, Margie, Murray, Sarah, Botha, Liz, Botya, Paula, Brookes, Margie, Westphal, Vivian

Authors: Probyn, Margie , Murray, Sarah , Botha, Liz , Botya, Paula , Brookes, Margie , Westphal, Vivian
Date: 2002
Language: English
Type: Article
Identifier: vital:6109 , http://hdl.handle.net/10962/d1009739
Description: South Africa's new Language in Education Policy (LiEP) has been described as one of the most progressive in the world but few schools have implemented it. This article describes research that investigates the gap between the policy goals and what is actually happening in schools in four districts in the Eastern Cape. The research attempts to make explicit community and school language practices and the factors that support or frustrate the formation and enactment of a school language policy in these four linguistically diverse sites. It appears that school governing bodies are not well equipped to make decisions about school language policy which meet the requirements of the national LiEP and economic imperatives to acquire English override considerations of multilingualism and additive bilingualism as expressed in the policy.
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Date Issued: 2002

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Minding the gaps – an investigation into language policy and practice in four Eastern Cape districts

- Probyn, Margie J, Murray, Sarah R, Botha, Liz, Botya, Paula, Brookes, Margie, Westphal, Vivian

Authors: Probyn, Margie J , Murray, Sarah R , Botha, Liz , Botya, Paula , Brookes, Margie , Westphal, Vivian
Date: 2002
Language: English
Type: Article
Identifier: vital:7024 , http://hdl.handle.net/10962/d1007206
Description: South Africa's new Language in Education Policy (LiEP) has been described as one of the most progressive in the world but few schools have implemented it. This article describes research that investigates the gap between the policy goals and what is actually happening in schools in four districts in the Eastern Cape. The research attempts to make explicit community and school language practices and the factors that support or frustrate the formation and enactment of a school language policy in these four linguistically diverse sites. It appears that school governing bodies are not well equipped to make decisions about school language policy which meet the requirements of the national LiEP and economic imperatives to acquire English override considerations of multilingualism and additive bilingualism as expressed in the policy.
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Date Issued: 2002

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The nature of learning and work transitioning in boundaryless work : the case of the environmental engineer

- Ramsarup, Presha, Lotz-Sisitka, Heila

Authors: Ramsarup, Presha , Lotz-Sisitka, Heila
Date: 2017
Subjects: Environmental engineers -- South Africa , Environmental degradation , Workplace literacy
Language: English
Type: article , text
Identifier: http://hdl.handle.net/10962/59657 , vital:27635 , https://doi.org/10.4314/sajee.v.33i1.8
Description: Transition is a common characteristic of our lives, particularly in a rapidly changing world. In this context, how careers are enacted has become increasingly varied, requiring new conceptual tools to study the transitions of learners and workers. This paper uses theoretical constructs from the literature on boundaryless career discourse as well as learning and on work transitioning in order to explore the learning pathways of environmental engineers. It thus contributes to empirical work that articulates ongoing transitions (beyond the first job) within ‘occupational and organisational life’, as well as to the understanding of learning pathways as educational and occupational progression. The career stories help us to understand how non-linear transitions emerge, the complexity of these transitions, and the need to attend to broader institutional arrangements within and across education and training, the labour market and the workplace. Through its focus on the environmental engineer, it helps us to understand the processes and outcomes of transitions in an important occupation in contemporary professional work in South Africa. Finally, in a field dominated by research on entry into a first job, the paper also provides much-needed insights into occupational transitions into specialised work.
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Date Issued: 2017

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Fatty acid profiles reveal temporal and spatial differentiation in diets within and among syntopic rocky shore suspension-feeders:

- Richoux, Nicole B, Vermeulen, Ilke, Froneman, P William

Authors: Richoux, Nicole B , Vermeulen, Ilke , Froneman, P William
Date: 2014
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/143346 , vital:38238 , doi: 10.3354/meps10581
Description: Regional and temporal variations in the diets of rocky shore suspension-feeders (the volcano barnacle Tetraclita serrata, the brown mussel Perna perna and the reef-building polychaete Gunnarea gaimardi) were assessed using fatty acid profiling. Specimens were collected up-current and down-current of a river mouth in 2 coastal regions ~50 km apart along southeastern South Africa during March and July of 2009. One of the rivers represents a marine-dominated system, and the other a freshwater-dominated system. Our aims were to assess any dietary differences among the 3 suspension-feeders, spatial changes in diet within each species (at regional and local scales—50 and 15 km, respectively), and temporal changes in diet within each species.
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Date Issued: 2014

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Fish utilization of surf-zones. Are they changing? A case study of the sheltered, warm-temperate King’s Beach

- Rishworth, Gavin M, Strydom, Nadine A, Potts, Warren M

Authors: Rishworth, Gavin M , Strydom, Nadine A , Potts, Warren M
Date: 2015
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/124504 , vital:35619 , https://doi.org/10.1080/15627020.2014.11407616
Description: Surf-zone fish communities and their shifts over time are generally poorly understood. The aim of this study was to compare the current surf-zone fish assemblage at King’s Beach, South Africa, to a similar study conducted three decades ago, before the collapse of many exploited shore fishes in the region. Beach seine nets (mesh sizes of 10 and 50 mm) were used to target juvenile and adult fishes bimonthly from February to August 2011 over the high tide around sunset. A total of 14 species were recorded in both the 30mand 100mseine nets. The catch in these seine nets was dominated by Pomadasys olivaceus and Liza richardsonii, and this was significantly different to three decades ago, when P. olivaceus, Sarpa salpa and Diplodus capensis dominated the catch. Important linefish species belonging to the Sparidae and Sciaenidae families were significantly smaller and less abundant in this study. Two sparids, S. salpa and Lithognathus mormyrus, which made a large contribution to the surf-zone catch three decades ago were absent during this study. Reasons for the significant shifts in the surf-zone fish community, including overexploitation of the linefish and potential habitat modification, are discussed.
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Date Issued: 2015

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A fuzzy classification technique for predicting species' distributions: applications using invasive alien plants and indigenous insects

- Robertson, Mark P, Villet, Martin H, Palmer, Anthony R

Authors: Robertson, Mark P , Villet, Martin H , Palmer, Anthony R
Date: 2004
Language: English
Type: text , Article
Identifier: vital:6897 , http://hdl.handle.net/10962/d1011659 , http://dx.doi.org/10.1111/j.1366-9516.2004.00108.x
Description: A new predictive modelling technique called the fuzzy envelope model (FEM) is introduced. The technique can be used to predict potential distributions of organisms using presence-only locality records and a set of environmental predictor variables. FEM uses fuzzy logic to classify a set of predictor variable maps based on the values associated with presence records and combines the results to produce a potential distribution map for a target species. This technique represents several refinements of the envelope approach used in the BIOCLIM modelling package. These refinements are related to the way in which FEMs deal with uncertainty, the way in which this uncertainty is represented in the resultant potential distribution maps, and the way that these maps can be interpreted and applied. To illustrate its potential use in biogeographical studies, FEM was applied to predicting the potential distribution of three invasive alien plant species (Lantana camara L., Ricinus communis L. and Solanum mauritianum Scop.), and three native cicada species (Capicada decora Germar, Platypleura deusta Thun. and P. capensis L.) in South Africa, Lesotho and Swaziland. These models were quantitatively compared with models produced by means of the algorithm used in the BIOCLIM modelling package, which is referred to as a crisp envelope model (the CEM design). The average performance of models of the FEM design was consistently higher than those of the CEM design. There were significant differences in model performance among species but there was no significant interaction between model design and species. The average maximum kappa value ranged from 0.70 to 0.90 for FEM design and from 0.57 to 0.89 for the CEM design, which can be described as 'good' to 'excellent' using published ranges of agreement for the kappa statistic. This technique can be used to predict species' potential distributions that could be used for identifying regions at risk from invasion by alien species. These predictions could also be used in conservation planning in the case of native species.
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Date Issued: 2004

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NSSC Secretariat report and bargaining conference resolutions

- SACCAWU

Authors: SACCAWU
Date: Oct 2007
Subjects: SACCAWU
Language: English
Type: text
Identifier: http://hdl.handle.net/10962/137712 , vital:37552
Description: Comrades National Office Bearers of SACCAWU, leadership of the Company Council, distinguished guests & delegates to this Summit, we extend to you revolutionary greetings from the National Office Bearers of Shoprite Checkers, and the masses of Shoprite Checkers workers who are SACCAWU members. This gathering takes place exactly a year after our national strike. It also takes place after lot of significant gatherings of all the Alliance Partners i.e. COSATU Central Committee, SACP National Conference, ANC National Policy Conference, and on fhe home front, the SACCAWU National Bargaining Conference. It is the important that the deliberations in this gathering should look at all decisions taken during this significant event, the Bargaining Conference, and put them into practicality. This Secretariat Report will cover the activities since the National Shopstewards Council of June 2006 in Durban.
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Date Issued: Oct 2007

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SACCAWU - NSSC Secretariat Report & Bargaining conference resolutions

- SACCAWU

Authors: SACCAWU
Date: Oct 2007
Subjects: SACCAWU
Language: English
Type: text
Identifier: http://hdl.handle.net/10962/113902 , vital:33843
Description: Comrades National Office Bearers of SACCAWU, leadership of the Company Council, distinguished guests & delegates to this Summit, we extend to you revolutionary greetings from the National Office Bearers of Shoprite Checkers, and the masses of Shoprite Checkers workers who are SACCAWU members. This gathering takes place exactly a year after our national strike. It also takes place after lot of significant gatherings of all the Alliance Partners i.e. COSATU Central Committee, SACP National Conference, ANC National Policy Conference, and on the home front, the SACCAWU National Bargaining Conference. It is the important that the deliberations in this gathering should look at all decisions taken during this significant event, the Bargaining Conference, and put them into practicality. This Secretariat Report will cover the activities since the National Shopstewards Council of June 2006 in Durban.
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Date Issued: Oct 2007

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Stronger induction of callose deposition in barley by Russian wheat aphid than bird cherry-oat aphid is not associated with differences in callose synthase or ≤-1,3-glucanase expression

- Saheed, Sefiu A, Cierlik, Izabela, Larsson, Kristina A E, Delp, Gabriele, Bradley, Graeme, Jonsson, Lisbeth M V, Botha, Christiaan E J

Authors: Saheed, Sefiu A , Cierlik, Izabela , Larsson, Kristina A E , Delp, Gabriele , Bradley, Graeme , Jonsson, Lisbeth M V , Botha, Christiaan E J
Date: 2009
Language: English
Type: Article
Identifier: vital:6542 , http://hdl.handle.net/10962/d1005984
Description: The effects of infestation by the bird cherry-oat aphid (BCA), (Rhopalosiphum padi L) and the Russian wheat aphid (RWA) (Diuraphis noxia Mordvilko) on callose deposition and gene expression related to callose accumulation were investigated in barley (Hordeum vulgare L. cv. Clipper). The BCA, which gives no visible symptoms, induced very limited callose deposition, even after 14 days of infestation. In contrast, RWA, which causes chlorosis, white and yellow streaking and leaf rolling, induced callose accumulation already after 24h in longitudinal leaf veins. The deposition was pronounced after 72 h, progressing during 7 and 14 days of infestation. In RWA-infested source leaves, callose was also induced in longitudinal veins basipetal to the aphid-infested tissue, whereas in sink leaves, more callose deposition was found above the feeding sites. Nine putative callose synthase genes were identified in a data base search, of which eight were expressed in the leaves, but with similar level of expression in control and aphid-infested tissue. Four out of 12 examined β-1,3-glucanases were expressed in the leaves, and three of them were up-regulated in aphid-infested tissue. They were all more strongly induced by RWA than BCA. The results suggest that callose accumulation may be partly responsible for the symptoms resulting from RWA feeding and that a callose-inducing signal may be transported in the phloem. Furthermore it is concluded that the absence of callose deposition in BCA-infested leaves is not due to a stronger induction of callose-degrading β-1,3-glucanases in this tissue, as compared to RWA-infested leaves.
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Date Issued: 2009

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Nutrient patchiness, phytoplankton surge-uptake, and turbulent history: a theoretical approach and its experimental validation

- Schapira, Mathilde, Seuront, Laurent

Authors: Schapira, Mathilde , Seuront, Laurent
Date: 2020
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/149774 , vital:38883 , https://doi.org/10.3390/fluids5020080
Description: Despite ample evidence of micro- and small-scale (i.e., millimeter- to meter-scale) phytoplankton and zooplankton patchiness in the ocean, direct observations of nutrient distributions and the ecological importance of this phenomenon are still relatively scarce. In this context, we first describe a simple procedure to continuously sample nutrients in surface waters, and subsequently provide evidence of the existence of microscale distribution of ammonium in the ocean. We further show that ammonium is never homogeneously distributed, even under very high conditions of turbulence. Instead, turbulence intensity appears to control nutrient patchiness, with a more homogeneous or a more heterogeneous distribution observed under high and low turbulence intensities, respectively, under the same concentration in nutrient. Based on a modelling procedure taking into account the stochastic properties of intermittent nutrient distributions and observations carried out on natural phytoplankton communities, we introduce and verify the hypothesis that under nutrient limitation, the “turbulent history” of phytoplankton cells, i.e., the turbulent conditions they experienced in their natural environments, conditions their efficiency to uptake ephemeral inorganic nitrogen patches of different concentrations.
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Date Issued: 2020

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Foreign policy ambiguity on the part of an emergent middle power: South African foreign policy through other lenses

- Serrão, Olivier, Bischoff, Paul, 1954-

Authors: Serrão, Olivier , Bischoff, Paul, 1954-
Date: 2009
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/161464 , vital:40629 , DOI: 10.1080/02589341003600189
Description: This paper attempts to address the ambiguity so frequently highlighted in South Africa's post-apartheid foreign policy. Three central arguments are put forward. Firstly, it is argued that traditional accounts of South Africa's foreign policy, utilizing rationalist or ‘mainstream’ theories of International Relations, are insufficient in themselves to explain the complexities inherent in the country's foreign policy. In this regard, constructivist IR theory offers several key insights into studies of South Africa's foreign policy. Secondly, although it is argued that constructivism, particularly its focus on identity, is crucial to understanding South African foreign policy, it alone cannot sufficiently explain its reception or results on the world stage. Finally, it is argued that in order to fully appreciate both the nature and effects of South Africa's foreign policy, a mixed focus, incorporating insights from both constructivist and materialist-based theories of IR, is necessary.
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Date Issued: 2009

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Urban foraging: a ubiquitous human practice overlooked by urban planners, policy, and research

- Shackleton, Charlie M, Hurley, Patrick T, Dahlberg, Annika C, Emery, Marla R, Nagendra, Harini

Authors: Shackleton, Charlie M , Hurley, Patrick T , Dahlberg, Annika C , Emery, Marla R , Nagendra, Harini
Date: 2017
Language: English
Type: article , text
Identifier: http://hdl.handle.net/10962/60876 , vital:27848 , https://doi.org/10.3390/su9101884
Description: Although hardly noticed or formally recognised, urban foraging by humans probably occurs in all urban settings around the world. We draw from research in India, South Africa, Sweden, and the United States to demonstrate the ubiquity and varied nature of urban foraging in different contexts. Across these different contexts, we distil seven themes that characterise and thereby advance thinking about research and the understanding of urban foraging. We show that it is widespread and occurs across a variety of urban spaces and places. The species used and the local practices vary between contexts, and are in constant flux as urban ecological and social settings change. This requires that urban foragers are knowledgeable about diverse species, harvest locations, and rights of access, and that their practices are adaptable to changing contexts. Despite its ubiquity, most cities have some forms of regulations that prohibit or discourage urban foraging. We highlight a few important exceptions that can provide prototypes and lessons for other cities regarding supportive policy frameworks and initiatives. The formulation of dynamic policy, design, and management strategies in support of urban foraging will benefit from understanding the common characteristics of foraging in cities worldwide, but also will require comprehension of the specific and dynamic contexts in which they would be implemented.
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Date Issued: 2017

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Above ground woody community attributes, biomass and carbon stocks along a rainfall gradient in the savannas of the central lowveld, South Africa

- Shackleton, Charlie M, Scholes, Robert J

Authors: Shackleton, Charlie M , Scholes, Robert J
Date: 2011
Language: English
Type: Article
Identifier: vital:6658 , http://hdl.handle.net/10962/d1007079
Description: Enumeration of carbon stocks at benchmark sites is a necessary activity in assessing the potential carbon sequestration and possible generation of credits through restoration of intensively impacted sites. However, there is a lack of empirical studies throughout much of the savannas of sub-Saharan Africa, including South Africa. We report an estimation of species specific and site biomass and carbon stocks, and general vegetation structural attributes from three protected areas along a rainfall gradient in the central lowveld, South Africa. Estimates of biomass and carbon stocks were effected through destructive sampling to establish locally derived allometric equations. There was a gradient of increasing woody density, height of the canopy, number of species, density of regenerative stems and a greater proportion of stems in small size classes from the arid locality to the mesic locality, with the semi-arid locality being intermediate. The proportion of spinescent species decreased with increasing rainfall. The mesic locality was significantly more woody than either the arid or semi-arid sites, having double the biomass, four times the density and 40% higher basal area. Above ground carbon pools were also higher; carbon stocks were approximately 9 t/ha for the arid and semi-arid sites and 18 t/ha for the mesic site.
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Date Issued: 2011

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