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Education for Sustainable Development and retention: unravelling a research agenda

  • Authors: Lotz-Sisitka, Heila
  • Date: 2010
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/127192 , vital:35975 , https://10.1007/s11159-010-9165-9
  • Description: This paper considers the question of what education for sustainable development (ESD) research might signify when linked to the concept of “retention”, and how this relation (ESD and retention) might be researched. It considers two different perspectives on retention, as revealed through educational research trajectories, drawing on existing research and case studies. Firstly, it discusses an ESD research agenda that documents retention by focusing on the issue of keeping children in schools. This research agenda is typical of the existing discourses surrounding Education for All (EFA). It then discusses a related ESD research agenda that focuses more on the pedagogical and curricular aspects of retention, as this provides for a deeper understanding of how ESD can contribute to improving the quality of teaching and learning within a wider EFA retention agenda.
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  • Date Issued: 2010

The South African constitutional court and the rule of law: the Masethla judgment, a cause for concern?

  • Authors: Krüger, Rósaan
  • Date: 2010
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/68930 , vital:29340 , http://ref.scielo.org/22p54n
  • Description: Publisher version , The rule of law as a foundational constitutional value constrains the exercise of public power but the precise limits of the constraints it sets are not well defined. In Masethla v President of the Republic of South Africa, the majority of the Constitutional Court opted for an interpretation of this value that frees the President from adherence to the demands of procedural fairness when exercising certain constitutional powers. This note will investigate the soundness of that interpretation against the background of theoretical expositions of the rule of law and earlier Constitutional Court judgments.
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  • Date Issued: 2010

Phylogeny, biogeography and classification of the snake superfamily Elapoidea a rapid radiation in the late Eocene

  • Authors: Kelly, Christopher M R , Barker, Nigel P , Villet, Martin H , Broadley, Donald G
  • Date: 2009
  • Subjects: To be catalogued
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/442267 , vital:73971 , https://doi.org/10.1111/j.1096-0031.2008.00237.x
  • Description: The snake superfamily Elapoidea presents one of the most intransigent problems in systematics of the Caenophidia. Its monophyly is undisputed and several cohesive constituent lineages have been identified (including the diverse and clinically important family Elapidae), but its basal phylogenetic structure is obscure. We investigate phylogenetic relationships and spatial and temporal history of the Elapoidea using 94 caenophidian species and approximately 2300–4300 bases of DNA sequence from one nuclear and four mitochondrial genes. Phylogenetic reconstruction was conducted in a parametric framework using complex models of sequence evolution. We employed Bayesian relaxed clocks and Penalized Likelihood with rate smoothing to date the phylogeny, in conjunction with seven fossil calibration constraints. Elapoid biogeography was investigated using maximum likelihood and maximum parsimony methods. Resolution was poor for early relationships in the Elapoidea and in Elapidae and our results imply rapid basal diversification in both clades, in the late Eocene of Africa (Elapoidea) and the mid‐Oligocene of the Oriental region (Elapidae). We identify the major elapoid and elapid lineages, present a phylogenetic classification system for the superfamily (excluding Elapidae), and combine our phylogenetic, temporal and biogeographic results to provide an account of elapoid evolution in light of current palaeontological data and palaeogeographic models.
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  • Date Issued: 2009

Spectroscopic and photophysicochemical behaviour of novel cadmium phthalocyanine derivatives tetra-substituted at the alpha and beta positions

  • Authors: Nyokong, Tebello , Chidawanyika, Wadzanai J U
  • Date: 2009
  • Language: English
  • Type: Article
  • Identifier: vital:6582 , http://hdl.handle.net/10962/d1004147
  • Description: The syntheses of three cadmium phthalocyanine derivatives tetrakis{1,(4)-(4-benzyloxy)phenoxyphthalocyaninato} (5a), tetrakis{1,(4)-(2-pyridyloxy)phthalocyaninato} (5b) and tetrakis{2,(3)-(4-benzyloxy)phenoxyphthalocyaninato} (6a) are reported here for the first time. Spectroscopic and photophysical properties have also been determined and the results are discussed here paying particular attention to the influence of various organic solvents in relation to the position and type of substitution. Singlet oxygen quantum yields (ΦΔ) and photodegradation quantum yields (ΦPd) have also been discussed. The triplet quantum yields have been determined and ranged from ΦT = 0.36 to 0.85, where the peripherally (β) substituted derivatives generally give higher values than those substituted at the non-peripheral (α) positions. The triplet lifetimes ranged from τT = 5 to 40 μs. In all cases (except toluene, due to the lack of data), the highest singlet oxygen quantum yields obtained were for the pyridyloxy-substituted derivatives 5b (ΦΔ = 0.60 in DMF) and 6b (ΦΔ = 0.74 in DMSO).
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  • Date Issued: 2009

Theory and South African developmental psychology research and literature

  • Authors: Macleod, Catriona I
  • Date: 2009
  • Language: English
  • Type: Book chapter
  • Identifier: vital:6300 , http://hdl.handle.net/10962/d1015326
  • Description: In this chapter we shall examine the theoretical assumptions that drive developmental psychology research and literature in South Africa. The basic underlying models utilised in developmental research may be described as (a) mechanistic; (b) organismic; (c) contextual and (d) social constructionist. A description of the fundamental premises of each of these will be followed by examples of research that utilise the particular approach. In the discussion, some of the controversies that plague developmental psychology research will be highlighted.
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  • Date Issued: 2009

Inventing the Human: Brontosaurus Bloom and “the Shakespeare in us”

  • Authors: Wright, Laurence
  • Date: 2008
  • Language: English
  • Type: text , article
  • Identifier: vital:7045 , http://hdl.handle.net/10962/d1007387 , https://www.taylorfrancis.com/books/e/9781351963534/chapters/10.4324%2F9781315264264-15
  • Description: preprint , This essay was occasioned by the casual reading of a book called Harold Bloom’s Shakespeare (2002), a collection of responses, pro, ante and puzzled, to Bloom’s Shakespearean magnum opus. The more I browsed in the assembled essays, some of them originally reviews and conference papers, others specially commissioned responses, the more curious I became. On the whole, the contributors seemed not to understand Bloom, at least not to understand him adequately, which is a devastating handicap when the task in hand is to pass judgment. The problem seems to be that few academic commentators take Bloom seriously, accepting that he means what he says; more accurately, they find it hard to entertain with full seriousness matters Bloom intends should be taken entirely seriously. Shakespeareans, locked into their various ways of understanding the world and critical activity, generally try to find Shakespeare (or “Shakespeare”) through reading Bloom, whereas he wants us to find ourselves through reading Shakespeare: to uncover what Emerson called ‘the Shakespeare in us’ (‘Shakespeare, or The Poet’, 256). The difference is stupendous. We ought first to ask in regard to Bloom’s blockbuster the question Bloom tells us he learned from Kenneth Burke, ‘What is the author trying to do for himself or herself by writing this work?’ (Shakespeare, 412).
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  • Date Issued: 2008

New Unity Movement Bulletin

A Hall-effect study of as-grown and hydrogenerated n-type ZnO layers grown by MOCVD

  • Authors: Somhlahlo, Nomabali Nelisiwe
  • Date: 2006
  • Subjects: Hall effect , Electric currents
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: vital:10535 , http://hdl.handle.net/10948/444 , http://hdl.handle.net/10948/d1012014 , Hall effect , Electric currents
  • Description: A series of as-grown ZnO layers have been electrically characterised by the temperature dependent (20 – 300 K) Hall-effect technique. The ZnO layers were grown by metal organic chemical vapour deposition (MOCVD) on glass substrates under various growth conditions. The temperature dependent Hall-effect technique produced mobility and carrier concentration measurements. These measurements were found to be reproducible and reliable. The carrier concentration data for the layers was fitted by the charge balance equation to accurately determine the donor level and corresponding donor concentration as well as the acceptor concentration for each sample. The measured donor levels were found to vary from sample to sample and there is evidence from the results that the variations are related to the differing growth conditions of the layers. The mobility data was also fitted to establish the dominant electron scattering mechanisms in the layers. The dominant scattering mechanisms were found to vary from sample to sample. For most of the layers studied, the dominant scattering mechanism was found to be both the ionised impurity scattering at low temperatures (20 – 100 K) and grain boundary scattering at higher temperatures (100 – 300 K). The effects of exposing the ZnO layers to hydrogen plasma were also investigated by the temperature dependent Hall-effect technique. Findings indicate that hydrogen is readily incorporated in ZnO, leading always to an increased carrier concentration. It was further noted that incorporating hydrogen into ZnO in some layers increased the mobility while in other layers it caused a decrease in the mobility. The hydrogenated samples were subsequently annealed at 600 °C for 1 hour in argon ambient resulting in the carrier concentration reducing to its original value. This effect is attributed to hydrogen diffusing out of ZnO.
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  • Date Issued: 2006

Maximum likelihood and Bayesian approaches to stock assessment when data are questionable

  • Authors: Booth, Anthony J , Quinn II, T J
  • Date: 2006
  • Language: English
  • Type: Article
  • Identifier: vital:6764 , http://hdl.handle.net/10962/d1007962
  • Description: This study examines the use of age-structured maximum likelihood and Bayesian approaches for stock assessment of the Namibian monkfish, Lophius vomerinus, resource with questionable data, in which time series are short, abundance indices are variable, and research data conflict with commercial data. Bayesian approaches with both noninformative and informative priors are investigated to determine if they enhance estimation stability. Three data scenarios are assessed: commercial and research survey data, research survey data only, and commercial data only. Both statistical approaches show that resource abundance has decreased with exploitable biomass estimated at approximately 44% of pristine levels. The maximum likelihood and the Bayesian approach with noninformative priors result in similar estimates. As the abundance data contained little information pertaining to possible density dependence within the stock–recruit relationship, only a Bayesian approach with informative priors reduces uncertainty in the steepness parameter h. Estimated management quantities are sensitive both to the set of data sources and whether prior information was informative or not. The strengths of the Bayesian approach include the integration of prior information with uncertain data, the exploration of data conflicts, and the ability to show the uncertainty in estimates of management parameters. Its weakness is that estimation stability is dependent on the choice of priors, which alters some posterior distributions of management quantities.
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  • Date Issued: 2006

Our society, our university, our challenges and responsibilities

  • Authors: Badat, Saleem
  • Date: 2006
  • Language: English
  • Type: Text
  • Identifier: vital:574 , http://hdl.handle.net/10962/d1006567
  • Description: Inaugural address of the Vice-Chancellor of Rhodes University, Dr. Saleem Badat
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  • Date Issued: 2006

A comparison of the Linux and Windows device driver architectures

  • Authors: Tsegaye, Melekam , Foss, Richard
  • Date: 2004
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/427198 , vital:72421 , https://dl.acm.org/doi/pdf/10.1145/991130.991132
  • Description: In this paper the device driver architectures currently used by two of the most popular operating systems, Linux and Microsoft's Windows, are examined. Driver components required when implementing device drivers for each operating system are presented and compared. The process of implementing a driver, for each operating system, that performs I/O to a kernel buffer is also presented. The paper concludes by examining the device driver development environments and facilities provided to developers by each operating system.
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  • Date Issued: 2004

Trade unions in Africa

  • Authors: African Labour Researchers Network (ALRN)
  • Date: 2003-12
  • Subjects: Labour unions -- Africa
  • Language: English
  • Type: text , pamphlet
  • Identifier: http://hdl.handle.net/10962/111142 , vital:33390
  • Description: In March 2001, a group of African trade union-based researchers met in Johannesburg, South Africa, to form the African Labour Researchers Network (ALRN). The network initially covered Ghana, Nigeria, Namibia, South Africa, Zimbabwe and Zambia but has since grown and now includes Kenya, Tanzania, Malawi and Angola. One of the network's objectives is to address policy issues that affect African workers and their trade unions by providing relevant research and education materials. The first research project undertaken by the network covered the labour movement in the countries of the founding members. The researchers looked at the legal, economic and political environment in which trade unions operate and identified some of the key challenges that unions face today. This booklet is based on the country case studies that were undertaken by Austin Muneku (Zambia), Anthony yaw Baah (Ghana), Godfrey Kanyenze and Blessing Chiripanhura (Zimbabwe), Salihu Lukman (Nigeria), Herbert Jauch and Barney Karuuombe (Namibia) as well as Ravi Naidoo, Claire Horton, Thobile Yanta, Samuel Denga, Lebo Modise and Wolfe Braude (South Africa). This booklet was compiled by Herbert Jauch and Kishi-Silas Shakumu with assistance from Anthony yaw Baah. We wish to thank the Ford Foundation, the Netherlands Trade Union Federation (FNV), the Finnish Trade Union Solidarity Centre (SASK), and the Belgian Fund for Development Co-operation (FOS) for their support (direct and indirect) of the network's activities, which made the publication of this booklet possible.
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  • Date Issued: 2003-12

New Unity Movement Presidential Address

NUM guide to the Labaour relations Act of 1995

  • Authors: NUM
  • Date: 1995
  • Subjects: NUM
  • Language: English
  • Type: text
  • Identifier: http://hdl.handle.net/10962/168140 , vital:41544
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  • Date Issued: 1995

Action notes: No. 3: Workshops

  • Authors: Human Awareness Programme
  • Date: 1987-06
  • Subjects: Nonprofit organizations -- Management
  • Language: English
  • Type: instruction , text
  • Identifier: http://hdl.handle.net/10962/60179 , vital:27744 , ISBN 0-620-11064-3
  • Description: This pamphlet will help you to plan a workshop. It looks at planning the content as well as the practical arrangements for the workshop. There are many reasons for having a workshop. They could include: teaching your activists a skill, like running meetings or producing media; analysing a new political development e.g. an election or a new law; planning a programme of action or a campaign; evaluating the work you have done in the past year, or the work you have done for a campaign; sorting out internal problem like structures that are not appropriate or a break down in working relationships. Whatever the reason for your workshop, you need to make sure that the aim is clear right from the start. Before you begin planning, you need to sort out exactly why you are having the workshop and what you hope to achieve by having the workshop. If your aim is clear, you can go ahead with the planning. This pamphlet is about planning a workshop ONCE YOU KNOW WHAT YOU HOPE TO ACHIEVE.
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  • Date Issued: 1987-06

LACOM News, no. 3, May 1987

  • Authors: LACOM (Sached Trust)
  • Date: 1987-05
  • Language: English
  • Type: Newsletter , text
  • Identifier: http://hdl.handle.net/10962/60168 , vital:27743
  • Description: At the national meeting of LACOM held in East London in May, a decision was taken that LACOM should produce its own newsletter. I he newsletter would be produced about tour times a year. The different branches would take responsibility for editing each edition of the newsletter. All branches would be responsible for submitting material to the editing branch by a required date. The aim of the newsletter was said to be: a) to provide a forum for open debate and of self-criticism and evaluation; b) to discuss some of the concrete problems facing the project; c) to raise more general and topical issues related to the practice of education; d) to include general information and news. This first newsletter was produced by the Durban branch of LACOM. Contributions were received from the Western Cape, Eastern Cape and Natal Region.
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  • Date Issued: 1987-05

The Karoo igneous province: an introduction

  • Authors: Eales, Hugh V , Marsh, Julian S , Cox, K G
  • Date: 1984
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/133945 , vital:37043 , http://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetailamp;idt=6519910
  • Description: The Karoo rocks are amongst the earliest manifestations of igneous activity accompanying the break-up of Gondwanaland during the early Mesozoic. Remnants of the once extensive lava sequence and the associated dolerite sills are found throughout southern Africa south of latitude 150S, the present outcrop being ca. 140,000 km². The main peak of volcanic activity is dated at about 190 m.y. and is probably coincident with the earliest stages of the opening of the Indian Ocean by the separation of Antarctica from southern Africa.
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  • Date Issued: 1984

Rhodes University Graduation Ceremony 1982

  • Authors: Rhodes University
  • Date: 1982
  • Language: English
  • Type: text
  • Identifier: vital:8117 , http://hdl.handle.net/10962/d1004575
  • Description: Rhodes University Graduation Ceremonies on Friday, 16 April 1982 at 8 p.m. [and] on Saturday, 17 April 1982 at 10 a.m. in the 1820 Settlers National Monument.
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  • Date Issued: 1982

The right to strike: 10th anniversary of Armourplate strike, 6th September 1976

  • Authors: Chemical Workers Industrial Union
  • Date: 1976-09-06
  • Subjects: Right to strike , Strikes and lockouts
  • Language: English
  • Type: text , pamphlet
  • Identifier: http://hdl.handle.net/10962/111269 , vital:33426
  • Description: In South Africa and throughout the world the working class is struggling to win the full right to strike. This booklet is published to commemorate the 10th anniversary of a landmark in this struggle under Apartheid. Ten years ago, on 6th September 1976, members of the Glass and Allied Workers Union at Armourplate went out on strike. The first legal strike by black workers. Although their brave struggle was not successful then, many lessons were learnt that have allowed victories to follow. Such lessons were put into practice in the Dunlop strike and the sit-ins covered in this booklet. The legal position of strikes is confusing and part of this booklet tries to clear this up. The present legal rights can be compared with our demands in the COSATU resolution.
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  • Date Issued: 1976-09-06
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