Work in progress: Recent submissions

Now showing items 101-120 of 510

Thermal and chemical characteristics of hot water springs in the northern part of the Limpopo province, South Africa

Olivier J.; Venter J.; Jonker C.S. (2011)

In many countries thermal springs are utilised for a variety of purposes, such as the generation of power, direct space heating, industrial processes, aquaculture and many more. The optimal use of a thermal spring is largely ...
AMPLATS hearing protection device (HPD) survey and the proposed model for quality hearing conservation

Steenkamp R.J.; Enright G. (2000)

Hearing damage cannot be `seen' or `felt' and people harmed are not always readily aware of it. For this reason (amongst others) NIHL is regarded as the silent disease, which is one of the reasons why hearing conservation ...
The African view of participatory business management

Prinsloo E.D. (2000)

In this paper I delineate the group of activities concerned with business and then proceed to give an exposition of the concepts used by Ubuntu as an example of the African view of business management indicating those ...
Project management trilogy challenges in Africa-where to from here?

Rwelamila P.D.; Purushottam N. (2012)

While projects are now recognized as a means to achieve competitive advantage in Africa, project management still remains a Cinderella field. On average, 8 out of 10 project managers are accidental or have an inadequate ...
Nonparametric estimation of instantaneous frequency

Katkovnik V. (1997)

The local polynomial approximation of time-varying phase is used in order to estimate the instantaneous frequency and its derivatives for a complex-valued harmonic signal given by discrete-time observations with a noise. ...
Determination of the preharvest sprouting resistance of South African winter wheat (Triticum aestivum L.) cultivars

Barnard A.; Purchase J.L.; Smith M.F.; Van Lill D. (1997)

Preharvest sprouting significantly reduces the quality of the South African wheat crop. This study classified the preharvest sprouting resistance of 17 South African winter wheat cultivars sampled over a range of typical ...
The cataclysmic variable WW Ceti: Physical parameters and periodic phenomena

Tappert C.; Wargau W.F.; Hanuschik R.W.; Vogt N. (1997)

We present spectroscopic and photometric data of the cataclysmic variable WW Cet. By comparison of our radial velocity data with earlier published ones we are able to restrict possible orbital periods to the two choices ...
Minimax lower bound for time-varying frequency estimation of harmonic signal

Nazin A.; Katkovnik V. (1997)

Estimation of the instantaneous frequency and its derivatives is considered for a harmonic complex-valued signal with the time-varying phase and time-invariant amplitude. The asymptotic minimax lower bound is derived for ...
Some Implications of Media Policy and Ethics in Literary Production: A Preliminary Survey of Sesotho Literature

Selepe T.J. (1997)

[No abstract available]
Young stellar objects and abnormal extinction within M 17

Chini R.; Wargau W.F. (1998)

The stellar content of M 17 is investigated by photoelectric observations from 1.2 to 4.8 μm for 69 stars. Combining these data with previous U BV RI measurements we obtain the following results: i) 32 stars are visible ...
The influence of Demeton-S-Methyl/Parathion and Imidacloprid on the yield and quality of Russian wheat aphid resistant and susceptible wheat cultivars

Tolmay V.L.; Van Lill D.; Smith M.F. (1997)

Russian wheat aphid, (Diuraphis noxia) causes severe damage to wheat in South Africa and producers have been forced to use insecticides for control. Plant resistance to Russian wheat aphid has been successfully transferred ...
On adaptive local polynomial approximation with varying bandwidth

Katkovnik Vladimir (IEEE, Piscataway, NJ, United States, 1998)

The local polynomial approximation (LPA) of noisy data is considered with the new adaptive procedure for varying bandwidth selection. The algorithm is simple to implement and nearly optimal within lnN factor in the point-wise ...
Interlibrary loans in new democratic societies - South African experiences

Raubenheimer J. (1998)

South Africa, as a new democracy, is currently driven by a vision of reconstruction and development. In the South African library environment, the focus is on rectifying serious inequalities in access to libraries and ...
Reconstructing Classroom Speech Events: Student Power in an Aboriginal ESL Context

Barnett J. (1997)

[No abstract available]
Perspectives on Early Literacy and Home-School Connections

Hill S. (1997)

[No abstract available]
Afrikaner nationalism: The end of a dream?

Grobbelaar J. (1998)

[No abstract available]
The Consumer Protection Act: No-fault liability of health care providers

Nothling Slabbert M.; Pepper M.S. (2011)

The introduction of no-fault or strict liability by the Consumer Protection Act 68 of 2008 (CPA) poses serious problems in the health care context. With a patient as a 'consumer' in terms of the CPA, health care practitioners ...
Socialisation, sexism, children and the church

Kretzschmar L.; Tuckey C. (2002)

This article analyses the sexist socialising of children in the church. It is based on theoretical analyses of sexist socialisation and on empirical research conducted in the Sunday Schools of the CPSA in the Johannesburg ...
Inflation versus unemployment in South Africa: Is there a trade-off?

Hodge D. (2002)

[No abstract available]
'Disintegrating the Agenda'-Strategies of Transformation Discourse

Finlayson R.; Slabbert S. (2002)

[No abstract available]

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