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Uhadi medley

- Group performance, Group Composition, Dargie, Dave

Umabatha: global and local

- Wright, Laurence

  • Authors: Wright, Laurence
  • Date: 2004
  • Language: English
  • Type: text , article
  • Identifier: vital:7032 , http://hdl.handle.net/10962/d1007364 , https://doi.org/10.1080/00138390408691324
  • Description: preprint , There can be few shows that test the dimensions and pitfalls of 'globalised' theatre as thoroughly as Welcome Msomi's Umabatha. The worldwide success of the show, in box-office terms, can hardly be argued with. And yet, in its very conception, the vehicle is so riven by intrinsic cultural, theatrical, class and 'nationist' tensions that different audiences cannot but reap utterly different experiences, depending on their own cultural and intellectual inheritance.The show is an instance where theatre practice (sometimes) obfuscates political and aesthetic discourse, showing how easily cultures miss each other and fail to connect, and how easily specific historical, geographical and imperial associations are swamped by shallow 'globalised' audience response.
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  • Date Issued: 2004

Unfair discrimination in employment

- Gixana-Khambule, Bulelwa Judith

  • Authors: Gixana-Khambule, Bulelwa Judith
  • Date: 2004
  • Subjects: Discrimination in employment -- Law and legislation -- South Africa , Unfair labor practices -- South Africa
  • Language: English
  • Type: Thesis , Masters , LLM
  • Identifier: vital:11059 , http://hdl.handle.net/10948/359 , Discrimination in employment -- Law and legislation -- South Africa , Unfair labor practices -- South Africa
  • Description: In this treatise the South African law relating to unfair discrimination is discussed. The development is traced from the previous dispensation and the few pronouncements of the Industrial Court on discrimination in employment. Thereafter the actual provisions in the law presently applicable, including the Constitution is considered. With reference to leading cases the issue of positive discrimination by adopting affirmative action measures is evaluated and reference is made to other defences like inherent requirements for the job and a general fairness defence. The conclusion is reached that South African law is developing to give effect to the notion of substantive equality with a view to eradicate the systematic discrimination of the past.
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  • Date Issued: 2004

Using visuals to communicate medicine information to patients with low literacy:

- Dowse, Roslind

  • Authors: Dowse, Roslind
  • Date: 2004
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/156958 , vital:40073 , https://journals.sagepub.com/doi/pdf/10.1177/104515950401500106
  • Description: The patient was adamant that she had taken her medicine as instructed, pointing to the visual (Visual 1) illustrating the instructions to endorse this. Via an interpreter, she communicated that she took her tablet three times during the day and once at night (which was correct), but only on those days when the sun was shining (not on cloudy days) and the moon was visible (depending on both cloud cover and phases of the moon).
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  • Date Issued: 2004

uThemba wophukile

- Rodolo, L. S., Xakayi, S., Nduna, S., Dubeni, N., Dargie, Dave

Uyolingena

- Group performance, Group Composition, Dargie, Dave

Uyon' uyabaleka

- Group performance, Group Composition, Dargie, Dave

Variability in and coupling of larval availability and settlement of the mussel Perna perna : a spatio-temporal approach

- Porri, Francesca

  • Authors: Porri, Francesca
  • Date: 2004
  • Subjects: Mussels -- South Africa Perna -- South Africa Perna -- Spawning Perna -- Larvae
  • Language: English
  • Type: Thesis , Doctoral , PhD
  • Identifier: vital:5796 , http://hdl.handle.net/10962/d1005484
  • Description: Population dynamics of many intertidal organisms are highly influenced by the abundance and distribution of planktonic larvae in the water column and their arrival on the shore. The brown mussel, Perna perna was used to investigate two of the primary processes that affect population size and dynamics, larval availability and settlement, on the south coast of South Africa. Perna perna is a dominant species on rocky shores of the southern and eastern coasts of South Africa. It creates three-dimensional beds that provide habitats for many other species and hence promotes biodiversity. Larval availability and settlement were examined at different spatial and temporal scales using a nested experimental design. To detect possible relationships between larval availability and settlement, the studies were simultaneous. Two sites, 4km apart, were chosen to investigate mussel settlement patterns. Within each site, three locations (300m from each other) were selected. At each location, five artificial settler collectors were placed at approximately 20cm intervals. Collectors were replaced at a range of time intervals, from daily to seasonal, for 16 months. Each intertidal location was paired with an offshore station, 500m from the shore, where larval availability was measured. At each offshore station, three vertical hauls were collected twice a month using a plankton net. Plankton sampling lasted for 14 months and was designed to examine variability on three temporal scales: seasonal, lunar and daily. The results showed no correlation between the distribution of larvae in the water and settlers on the shore. While larvae were abundant in the water at the start of sampling, they became very rare throughout the rest of the study at both sites and all locations. In contrast, distinct peaks of settler abundance were observed during the seasonal settlement study. In addition to the expected, strong temporal variation that emerged from both studies at all time scales, spatial patterns of variability were also observed. While no spatial effect was detected for the larvae in the water column, there was distinct spatial variation in settlement at the location level: some locations always showed higher settlement than others. These results suggest that, on scales of hundreds of meters to kilometers, larval availability and settlement are very unpredictable in time and that differential delivery of larvae occurs from nearshore waters to the shore. Although the effect of the state of the moon (new or full) was not significant in either study, more settlers seemed to arrive on the shore during new moon. Wind direction did not correlate significantly with settlement. However, the dropping of offshore winds and the prevalence of onshore winds, which are characteristic of summer, may be linked to the start of settlement. Nevertheless, further investigations on tidal or lunar cycles and on the influence of wind on surface currents are required to clarify the effects of moon and wind on settlement.
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  • Date Issued: 2004

Variability in pH, fCO2, oxygen and flux of CO2 in the surface water along a transect in the Atlantic sector of the Southern Ocean

- Chierici, M, Fransson, A, Turner, D R, Pakhomov, E A, Froneman, Pierre William

  • Authors: Chierici, M , Fransson, A , Turner, D R , Pakhomov, E A , Froneman, Pierre William
  • Date: 2004
  • Language: English
  • Type: Article
  • Identifier: vital:6847 , http://hdl.handle.net/10962/d1011105
  • Description: Underway sampling and measurements of pH, fCO2, oxygen and Chlorophyll a (Chl a) were performed in the surface waters from Cape Town (South Africa) to Queen Maud Land (Antarctica) in the Atlantic sector of the Southern Ocean during the austral summer 1997/1998. From direct measurements of these parameters and from calculated fCO2 the oceanic carbon dioxide system was studied and related to hydrological and biological parameters. fCO2 was in general undersaturated relative to the atmosphere and showed a large variability with values ranging from 313 to 377 μatm with a mean value of 346±13 μatm. The undersaturation was more pronounced in areas associated with fronts where high Chl a and high pH in situ values were observed. Using shipboard wind speed data, estimates of the CO2 flux were made along the transect and during three mesoscale surveys on the northward return transect in the area of the Spring Ice Edge (SIE), the Winter Ice Edge (WIE) and in the Antarctic Polar Front (APF). The undersaturation observed during the transect caused the ocean to act as a sink for CO2 with a mean sea–air flux for the entire transect of −3±5 mmol m−2 d−1 with a large variability between −20 mmol m−2 d−1 (oceanic uptake) to 1.3 mmol m−2 d−1 (oceanic source). The lowest fCO2 values (largest oceanic uptake of CO2) were found at the southern boundary of the APF at 53°S, which coincided with a supersaturation in oxygen and high pH values. Oxygen concentrations were measured from 50°S to 63°S and varied between 324 and 359 μmol kg−1 with a mean value of 347±9 μmol kg−1. In general only small deviations from equilibrium oxygen saturation were observed (mean value=99±2%). However, in the SIE oxygen was clearly undersaturated, probably an effect of upwelling of oxygen poor deep water which had not yet been compensated for by biological production. Three weeks later, the ice edge had retreated in the SIE region and the Chl a concentration had increased three-fold, suggesting the start of a phytoplankton bloom. This was also seen in the oxygen concentration which had increased and showed supersaturation. This coincided with an increased oceanic uptake of CO2 in the SIE during the mesoscale survey.
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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

Wenyuk' umziyoni

- Group performance, Group Composition, Dargie, Dave

World view theory and the conceptualisation of space in mathematics education:

- Schäfer, Marc

  • Authors: Schäfer, Marc
  • Date: 2004
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/141052 , vital:37940 , DOI: 10.4102/pythagoras.v0i59.127
  • Description: The cornerstone of current education trends that recognise prior knowledge as fundamental to the learning process, is the notion that beliefs and experiences that learners bring to the classroom influence their learning experiences in the classroom (Cobern, Gibson and Underwood, 1999).
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  • Date Issued: 2004

Zinc phthalocyanine photocatalyzed oxidation of cyclohexene

- Sehlotho, Nthapo, Nyokong, Tebello

  • Authors: Sehlotho, Nthapo , Nyokong, Tebello
  • Date: 2004
  • Subjects: To be catalogued
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/289399 , vital:56629 , xlink:href="https://doi.org/10.1016/j.molcata.2004.05.010"
  • Description: Cyclohexene photooxidation catalyzed by zinc phthalocyanine (ZnPc) using either red or white light results in the formation of cyclohexenone, cyclohexenol, trans-cyclohexanediol, cyclohexene oxide and cyclohexene hydroperoxide. The product yield increased as follows: cyclohexenone > cyclohexenol > trans-cyclohexanediol > cyclohexene oxide > cyclohexene hydroperoxide. The mechanism for the formation of these products involves both singlet oxygen and radicals (Type II and Type I mechanisms, respectively). The catalyst degraded slowly when low light intensities were employed. The product yields were found to depend on the light intensity, the nature of solvent, irradiation time and the rate of photodegradation of the catalyst.
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  • Date Issued: 2004

‘The Gentle Art of Letting the Other Fellow Have Your Own Way': Viewpoints on a media narrative used to promote the proposed N2 toll road

- Farrington, Katie, Davies, Kate

  • Authors: Farrington, Katie , Davies, Kate
  • Date: 2004
  • Language: English
  • Type: Article
  • Identifier: vital:6098 , http://hdl.handle.net/10962/d1008628
  • Description: This viewpoint paper is written in response to a South African National Roads Agency (SANRAL) advertorial published in various South African regional newspapers in February 2004. We highlight the importance of developing ‘media literacy’ – reading skills which enable the critical deconstruction of media texts. We explore, more specifically, the public relations strategies used by large corporations, and the media’s role as disseminators of corporate marketing material.We also look at the relevance in identifying the language and discourse positioning the writer, photographer, reader and their choice representative medium.
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  • Date Issued: 2004
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