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Phylogeny, biogeography, and the evolution of life-history traits in Leucadendron (Proteaceae)

- Barker, Nigel P, Vanderpoorten, Alain, Morton, Cynthia M, Rourke, John P

  • Authors: Barker, Nigel P , Vanderpoorten, Alain , Morton, Cynthia M , Rourke, John P
  • Date: 2004
  • Language: English
  • Type: Article
  • Identifier: vital:6496 , http://hdl.handle.net/10962/d1004491
  • Description: Leucadendron is a moderately large genus of Proteaceae almost entirely restricted to the Cape Floristic Region of southern Africa. The genus is unusual in being dioecious and sexually dimorphic. ITS sequence data were obtained from 62 of the 96 currently recognized taxa (85 species and 11 subspecies). Phylogenetic analyses were conducted under Maximum Likelihood and parsimony and resolved nine groups of species with varying degrees of bootstrap support, but relationships between these groups are largely unsupported. The phylogeny conflicts with the current taxonomic arrangement, which is based mainly on fruit morphology. The two sections of the genus, Alatosperma and Leucadendron, and several subsections within these sections, are resolved as non-monophyletic. This means that taxonomically important characters (such as fruit shape) have evolved multiple times, as the species with nutlike fruit (resolved into two of the nine groups) appear to have evolved independently from ancestors with winged fruit. Based on the topology obtained, the life history traits of anemophily, myrmechochory, and re-sprouting have also originated multiple times. Dispersal–Vicariance (DIVA) analysis suggests that the genus had an ancestral area in the Karoo Mountain and Southeastern phytogeographic centres of endemism in the southwestern Cape. , Elsevier
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  • Date Issued: 2004

Wearing your PIM: experiments with an audio enhanced PIM

- Tsegaye, Melekam, Bangay, Shaun D, Terzoli, Alfredo

  • Authors: Tsegaye, Melekam , Bangay, Shaun D , Terzoli, Alfredo
  • Date: 2004
  • Subjects: To be catalogued
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/432854 , vital:72904 , https://www.cs.ru.ac.za/research/g98t4414/static/papers/wpimfinal.pdf
  • Description: PIM systems help organise people’s lives by providing address book, schedule and task management facilities. Current PIM’s manage this information by collecting and storing it as textual data. With the advent of the wearable computer, using text only is no longer an efficient and convenient mechanism for managing personal information. A wearable computer should use data from various sensors (video, audio, location, environmental, user state) to organise personal information. In this paper we examine how audio can be used to enhance the facilities provided by text-only PIM’s and present an example implementation of an audio based wearable PIM (wPIM) that has the capability of storing and retrieving PIM information as audio recordings. The results of the user evaluation we conducted, which was carried out outside of the laboratory, suggests that users strongly accept audio as a way to manage their personal information and to augment their memory, supporting our hypothesis that audio enhances wearable personal information management.
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  • Date Issued: 2004

IsiXhosa insect names from the Eastern Cape, South Africa

- Mkize, Nolwazi, Villet, Martin H, Robertson, Mark P

  • Authors: Mkize, Nolwazi , Villet, Martin H , Robertson, Mark P
  • Date: 2003
  • Language: English
  • Type: Article
  • Identifier: vital:6859 , http://hdl.handle.net/10962/d1011148
  • Description: We present a list of isiXhosa names for a wide diversity of South African insects, and their English translations and scientific names, to contribute to bridging the knowledge gap between rural development workers and isiXhosa speakers. We interviewed 51 people in their homes at eight sites across the Eastern Cape and also included words from a published dictionary. We found 151 insect names, and categorized them into personal, dialectal and standard categories. Response-frequency distributions of the categories of names showed that the dialectal and standard lists were essentially complete. Sample accumulation curves showed levelling-off within sites and across the whole study, demonstrating that samples were adequate. The literal translations of some names show that isiXhosa speakers relate insects either to people, to their habitat and/or to their behaviour. The list can contribute to the standardization of knowledge of insects' indigenous names in South Africa for a variety of practical applications such as agricultural training and health services.
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  • Date Issued: 2003

Happiness trends under democracy: where will the new South African set-level come to rest?

- Moller, Valerie

  • Authors: Moller, Valerie
  • Date: 2001
  • Language: English
  • Type: Article
  • Identifier: vital:7111 , http://hdl.handle.net/10962/d1010743 , http://dx.doi.org/10.1023/A:1011557404822
  • Description: Five years after South Africa’s first democratic elections in 1994, life satisfaction and happiness still reflect societal divides sowed by apartheid social engineering. The paper reports the indicators: life satisfaction, happiness and expectations for the future, from national surveys conducted between 1983 and 1999 for the South African Quality-of-Life Trends Project. Post-election euphoria, which saw all South Africans happy and satisfied with life for a brief moment in 1994, raises the question where the new set-level of subjective well-being will eventually come to rest. In 1999, in spite of some gains in living conditions, the level of life satisfaction of blacks has not risen above the mid-point and happiness is only slightly above the midpoint. Meanwhile, whites, who have forfeited their political dominance, continue to score above the mid-point on happiness and life satisfaction. The paper draws on the literature, particularly on quality-of-life trends in reunified Germany and paradoxical trends in African-American life satisfaction when discussing the dynamics underlying South African subjective well-being. It is argued that coping mechanisms may play an important role in determining levels of subjective well-being in the complex situation of South Africa.
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  • Date Issued: 2001

The Educational Journal

  • Date: 2000-08
  • Subjects: Education – South Africa , South Africa – Economic conditions , South Africa – Social conditions
  • Language: English
  • Type: text , Article
  • Identifier: http://hdl.handle.net/10948/38388 , vital:34740 , Bulk File 7
  • Description: The Educational Journal was the official organ of the Teachers' League of South Africa and focussed on education within the context of a racialized South Africa. From the 2000s, the journal was published by the National Union of Public Service and Allied Workers (NUPSAW), a trade union formed in August 1998 from the amalgamation of militant and moderate trade unions and also operated in the education sphere.
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  • Date Issued: 2000-08

The Educational Journal

The Educational Journal

The Educational Journal

The Educational Journal

New Unity Movement Presidential Address

The Educational Journal

The Educational Journal

Department of Economic Affairs and RDP

- Department of Economic Affairs

  • Authors: Department of Economic Affairs
  • Date: 1997-01
  • Subjects: Reconstruction and Development Programme (South Africa) , Western Cape (South Africa) -- Economic conditions , South Africa -- Economic policy
  • Language: English
  • Type: text , book
  • Identifier: http://hdl.handle.net/10962/72490 , vital:30072
  • Description: Local Economic Development (LED) is one of the primary building blocks in terms of the economic growth and development equation for the Province. The primary challenges LED has the potential to address include the following: Job creation, the building of an enabling environment that will encourage economic engagement by a larger number of local entrepreneurs, drawing together a number of critical partners and mobilising their energies and resources towards local economic growth and development, facilitating access to finance, markets, capacity building and business support services, creating the environment which will effect economic viability of local communities and their Local Authorities, linking local product development to provincial, national and international markets. There are many other fundamental challenges. The key issue though is whether people in their communities, especially rural and peripheral environments, are benefiting in real terms regarding the quality of their lives. The LED programme will also give effect to the “Growth, Employment and Redistribution: A Macro Economic Strategy” framework that outlines the strategy for rebuilding and restructuring the South African economy. The document confirms Government’s commitment: “It is Government’s conviction that we have to mobilise all our energy in a new burst of economic activity. This will need to break current constraints and catapult the economy to higher levels of growth, development and employment needed to provide a better life for all South Africans.” (1996:2)
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  • Date Issued: 1997-01

The Educational Journal

The Educational Journal

The Educational Journal

The Educational Journal

The Educational Journal

The Educational Journal

Negotiations Bulletin - A new era in labour relations

- COSATU

  • Authors: COSATU
  • Date: Oct 1995
  • Subjects: COSATU
  • Language: English
  • Type: text
  • Identifier: http://hdl.handle.net/10962/137567 , vital:37538
  • Description: IN FEBRUARY 1995, Comrade Tito Mboweni published for comment and negotiations, a draft Labour Relations Bill, prepared by the Ministerial Task Team led by Halton Cheadle. The initial reactions of both business and labour were generally favourable to the Bill. We indicated that, at a glance, the Bill represented a major shift in industrial relations, an advance in our struggle and that its basic structure had many positive elements. We also indicated that some areas needed reworking and radical changes. By the end of April, labour was ready with its positions. These had been agreed upon by Cosatu’s Central Executive Committee (CEC) and in further discussions with Fedsal and Nactu. These positions were published on May Day and presented to business and the government on 4 May. Business was either not ready by then, or had made a decision to delay the process. Throughout the negotiations process, they did not table any constructive proposals. Instead they labeled ours as unworkable and unreasonable. The same approach was adopted by most of the commercial media. By the end of May it was clear to all of us that, short of a massive programme of mass action, mobilisation of the international trade union movement and a new approach to the negotiations, we were not going to have the Bill ready by this year. The result was massive marches and stay aways on 6 and 19 June. Business responded with an advertisement in all major newspapers’ claiming to have accepted the Bill. They even misrepresented Tito’s speech at the launch of the Bill. This was a sign of desperation on their part. A new round of negotiations started again on 21 June 1995 with a series of trilateral negotiations culminating in the Nedlac Agreement of 19 July. While labour was satisfied with most of the issues, we had reservations on the way some of the issues were resolved or captured. We nonetheless agreed that the process of drafting the agreements into law should begin, to ensure that the bill went through parliament before the end of the 1995 sitting, which was scheduled to rise on 15 September. We now have a new law, which, as 1 have indicated earlier, represents a victory for labour and brings in a new era of industrial relations. Most of the issues on which we had reservations, have been resolved either through drafting or the parliamentary process.
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  • Date Issued: Oct 1995
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