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Determining industries' environmental training needs, with special reference to the manufacturing and engineering industries in the Eastern Cape

- Mabunda, Khensani

  • Authors: Mabunda, Khensani
  • Date: 1998
  • Subjects: Manufacturing industries -- Employees -- Training of -- South Africa -- Eastern Cape Environmental education -- South Africa -- Eastern Cape
  • Language: English
  • Type: Thesis , Masters , MEd
  • Identifier: vital:1900 , http://hdl.handle.net/10962/d1006217
  • Description: This paper presents the outcome of two case studies and a survey of manufacturing and engineering industries in the Eastern Cape, to explain their environmental education and / or training needs. The methods involved in case studies were interviews, observation and document analysis and for the survey a postal questionnaire. Respondents were generally able to identify their companies' environmental impacts and most thought that education and/training has a role to play in helping them deal with those impacts. While respondents identified environmental awareness for workers as the main role that education and / or training can play, it also has to help management understand its environmental role in dealing with environmental management systems and legislation, as well as supporting education and training. Education and/or training should take both managers and workers beyond the superficial understanding of the concept of environment. In-house and external trainers were identified as potential trainers as this would both overcome a current lack of capacity and make continuity possible when external trainers cease training. Trainers should be environmentally qualified. Respondents have mostly shown support for learning-on-the-job but less so on special environmental courses or including an environmental component in all training programmes. Some training sections consider their sections as already overladen and unable to accommodate other training programmes. The problem is therefore more logistic than environmental.
  • Full Text:
  • Date Issued: 1998

Dictature 8'10

- MC-Zotto (lead, vocal, rap, ragga), Lamso (rap, composition), Poupson (rap), Bouttas (ragga), David (rap, sing), Dene, Izebere (chorus), MALI K7 S.A.

Die diskoers van kerst en andere liefdesverhalen deur Kristien Hemmerechts

- Du Plessis, W I

  • Authors: Du Plessis, W I
  • Date: 1998
  • Subjects: Hemmerechts, Kristien, 1955- -- Criticism and interpretation , Discourse analysis, Literary , Structuralism (Literary analysis)
  • Language: Afrikaans
  • Type: Thesis , Masters , MA
  • Identifier: vital:3601 , http://hdl.handle.net/10962/d1002185
  • Description: Die doel van hierdie studie was om aan te toon hoe 'n linguistiese beskouing van 'n literere teks kan meehelp om tot gefundeerde insigte in 'n teks te kom en om langs hierdie weg die beskuldiging dat literatuurstudie grotendeels 'n 'anything-goes-dissipline' is, te omseil. Om hierdie rede is daar van die standpunt uitgegaan dat kennis oor die presiese aard van die tekslinguistiek kan meehelp in die toepassing daarvan. Dit dien as motivering vir die uitgebreide diachroniese situering van die tekslinguistiek van die eerste hoofstuk. Hier word geredeneer dat die tekslinguistiek iets soos 'n pseudo-literatuurteorie is wat kan meehelp in die lees en interpretasie van en kommentaar oor 'n literere teks. Daar is grotendeels gefokus op die literere benaderings wat die ontwikkeling van die tekslinguistiek voorafgegaan en be'invloed het. Daar was drie hoofstrominge t.o.v. tekstuele benadering, nl. (i) tekssentriese (outonomistiese), (ii) linguistiese (taalsentriese), en (iii) lesersentriese benaderings. Die vemaamste tekssentriese (outonomistiese) benaderings is die Russiese Formalisme, New Criticism en Stilistiek op taalkundige grondslag. In die bespreking van hierdie benaderings is dit tel kens in verband gebring met die bestaande teorie oor die tekslinguistiek ten einde die diachroniese aard van die ontwikkelingsgang daarvan, te karteer. Die vernaan1ste eksponente van die linguistiese (taalsentriese) benaderings is die Strukteralisme, Poststrukturalisme en die Semiotiek. Daar is in hierdie afdeling duidelik aangestip hoe die standaarde van tekstualiteit (De Beaugrande en Dressler, 1981), en spesifiek die standaard kohesie, terug te vind is in hierdie benadering tot teksstudie. Die Resepsie-estetika en Referensiele benadering is bespreek as eksponente van die sg. lesersentriese benadering. Die doel hiervan was om aan te dui hoe intertekstualiteit, kontekstualiteit en informatiwiteit as standaarde van tekstualiteit, in hierdie benadering terug te vind is. Met die diachroniese situering in gedagte, is daar in die tweede deel van Hoofstuk Een oorgegaan tot 'n sinchroniese karakterisering van wat die tekslinguistiek behels. In hierdie hoofstuk is daar voortgegaan met die beredenering dat die term diskoerslinguisliek • n meer akkurate benaming is vir 'n dissipline wat meer as net ' teks' in ag neem. Diskoers kan beskou word as 'n reeks taaluitinge wat 'n taalhandeling vorm. Hoewel diskoerslinguisliek die term tekslinguistiek in hierdie studie vervang, is daar duidelik aangetoon dat dit nie die doel het om aardskuddend veranderend te wees nie. Die werkswyse wat in hierdie studie gevolg is, is steeds die van die tekslinguistiek. Om hierdie rede is hierdie gedeelte van die studie grootliks teoreties, dit bespreek die interdissiplinere aard van tekslinguistiekldiskoerslinguistiek, definieer dit, en identifiseer die studieveld van 'teks'. Hierdie identifisering (sintaktiese eenheid, semantiese eenheid en pragmatiese eenheid) funksioneer breedweg as die hoofuiteensetting van hierdie studie. Tog word daar in hierdie studie aangetoon dat daar verskil word van die De Beaugrande en Dressler-aanname dat daar sewe standaarde van tekstualiteit bestaan, en word dit hier gereduseer tot twee superstandaarde, nl. kohesie en koherensie. Koherensie beskik oor sg. 'voorwilardes', nl. intensionaliteit, aanvaarbaarheid, informatiwiteit, kontekstualiteit en intertekstualiteit. Op hierdie wyse word die meganistiese indeling van die oorspronklike sewe standaarde oorkom. In Hoofstuk Twee word die teorie rondom die superstandaard kohesie toegepas op die Nederlandse teks deur Kristien Hemmerechts, Kerst en andere liefdesverhalen. Hierdie hoofstuk het die implisiete doel om aan te toon hoe 'n suiwer strukturalistiese ondersoek na 'n tekstuele gegewe kan meehelp in die identifisering van bepaalde linguistiese patrone wat, indien gesitueer in 'n pragmatiese milieu, bepaalde betekeniswaarde verkry. Verskeie aspekte rondom die konsep 'kohesie' word hier bespreek, o.a. 'n by trek van sg. storiegrammatika van die liefdesverhaal en sprokie ten einde bepaalde taalpatrone te identifiser wat pragmatiese betekenislading het. Hierbenewens word daar suiwer struktureel met die teks omgegaan met 'n identifisering van bepaalde patrone in die adjektief-aanwending, die gebruik van saakname, verwysing, polisemie, sinonimie, teenoorgesteldheid, antonimie, komplementeerbaarheid, ruimtelike opposisie en hiponimie. 'Hierbenewens word kohesiewe-bindingspatronesoos ellips, semantiese rolle en sg. tematiese kontinuHeit bespreek. Die daaropvolgende hoofstuk is 'n bye en bring van die ge"identi±iseerde talige patrone van Hoofstuk Twee en 'n situering daarvan in 'n pragmatiese raamwerk. Koherensie is die somtotaal van eenheid en betekenis soos wat dit in diskoers ervaar word. Dit het betrekking op dit wat bydra dat 'n teks vir taalgebruikers sin maak en samehang vertoon. Aangesien koherensie grootliks steun op die pragmatiek, is die fokus van hierdie afdeling van die studie grootliks pragmaties en word daar aangedui hoe die bestaan van bepaalde koordinate, 'n beginsel van samewerking en 'n spraakhandelingsteorie kan bydra tot gefundeerde insigte in die onderhawige teks.
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  • Date Issued: 1998

Diet of two Antarctic dragonfish (Pisces: Bathydraconidae) from the Indian sector of the Southern Ocean

- Pakhomov, E A

  • Authors: Pakhomov, E A
  • Date: 1998
  • Subjects: Antarctica Bathydraconidae
  • Language: English
  • Type: Article
  • Identifier: vital:6943 , http://hdl.handle.net/10962/d1011970 , http://dx.doi.org/10.1017/S095410209800008X
  • Description: The diet of Cygnodraco mawsoni Waite 1916 and Gymnodraco acuticeps Boulenger 1902 (Pisces: Bathydraconidae) was studied in the Cooperation and Cosmonaut seas in the depth range 200–400 m during the summer 1988. Stomach content analysis showed that both species are piscivorous predators but with different feeding habits. Cygnodraco mawsoni fed mostly on young notothenioid fish, regularly complementing these with pelagic, Euphausia superba, and benthic crustaceans, such as amphipod gammarids and mysids. In contrast, G. acuticeps relied mostly on mesopelagic fish of the family Myctophidae. Although C. mawsoni and G. acuticeps occupy similar depths in the Cosmonaut Sea, different feeding habits appear to limit the probability of interspecific competition for food.
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  • Date Issued: 1998

Disabling myth or writing for the world: the secondary schools language project in the Eastern Province, South Africa

- Bleach, Jean

  • Authors: Bleach, Jean
  • Date: 1998
  • Language: English
  • Type: Article
  • Identifier: vital:7016 , http://hdl.handle.net/10962/d1007170
  • Description: The majority of learners in South African schools are black, and they learn through English as a second language (L2). This contrasts with white students who learn through their first language (L1), English or Afrikaans. Most black students in South Africa are multilingual, and new developments in the curriculum promise to value this achievement. Even now, young black students display considerable competence in their written English when they use electronic links to communicate with fellow students and adults worldwide. Computers motivate students as writers and language learners. One of the many disabling myths that threatens to impede progress towards equity in educational outcomes in South Africa is the myth that teachers of writing in historically black schools will wait a very long time for the technologies of word processing and e-mail to be available to them. In the Eastern Province many schools have no telephones or electricity. The ANC Government is struggling to meet basic needs quickly and computers could then be used to promote equity among learners. In this study, students had only limited access to keyboard and e-mail facilities, yet the enthusiasm and concentration computers generated meant that they could leapfrog many hours of classroom instruction.
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  • Date Issued: 1998

Djourou

- Dieneba Seck (lead vocal, chorus), Nanou Coul, Wande Kouyate, Yves Ndjock (chorus), Djely Moussa Kouyate (rhythm guitar), Tom Toumani Diakite (ngamole, ngomi, percussion), Thio Mbaye (percussion, djembe, tama), Maka Tounkara "Badie" (ngomi), Jean Luc Pinot (violon), Ben's Belinga (saxophone), Yves Ndjock (bass, snare drum, guitar), Syllart Production

Ecological interactions on a rocky shore : the control of macroalgal distribution by intertidal grazers

- Whittington-Jones, Kevin John

  • Authors: Whittington-Jones, Kevin John
  • Date: 1998
  • Subjects: Limpets -- South Africa , Mollusks -- Ecology , Mollusks -- Feeding and feeds , Mollusks -- South Africa , Cryptogams , Cryptogams -- South Africa , Algae -- Control , Algae -- South Africa
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: vital:5665 , http://hdl.handle.net/10962/d1005350 , Limpets -- South Africa , Mollusks -- Ecology , Mollusks -- Feeding and feeds , Mollusks -- South Africa , Cryptogams , Cryptogams -- South Africa , Algae -- Control , Algae -- South Africa
  • Description: The aim of the present study was to determine the potential impact of intertidal grazers on the distribution of macro algae on the south coast of South Africa. Particular attention was paid to the large patellid limpet, Patella oculus, which is found thoughout the intertidal zone. Studies of gut contents revealed that Patella oculus was capable of ingesting not only the thallus of foliose (eg. Ulva spp.) and encrusting coralline macroalgae, but also spores and diatoms. The inclusion of these relatively small particles in the diet was surprising, as electron micrographs of the radula of P.oculus revealed that it is typically docoglossan in structure. Such radulae are thought to be poorly suited for collecting small food particles. Sand made up a significantly higher proportion of the gut contents than other particles at all shore heights, which suggests that P.oculus might be capable of excavating the rocky substratum, or of sweeping up sand, while searching for food. Analysis of the gut contents of other local herbivorous molluscs, was also carried out. These species included the winkles, Oxystele variegata and O.sinensis, and the small pulmonate limpets, Siphonaria concinna, S.capensis, and S.serrata. The guts of all species contained mainly spores and diatoms, although small fragments of Ulva sp. were found. The population structure of Patella oculus was investigated at two sites, Cannon Rocks and Old Woman's River. At Cannon Rocks, mean shell length of low-shore animals was significantly lower than that of both mid- and high-shore animals, while at Old Woman's River, no significant difference was found among shore heights. A regression equation for In (shell length) vs In (dry weight) was calculated, and based on length data, the biomass density (g dry mass.m⁻²) of P.oculus at Old Woman's River was estimated. Values ranged from 2.8 on the low- and midshore to 0.37 on the high-shore. A manipulative field experiment was used to determine the impact of mesograzers and macrograzers (such as Patella oculus) on the distribution of intertidal macro algae on the mid- and low-shore at Old Woman's River. Grazers were excluded using mesh cages (mesh size = 3mm), in two separate experiments, one in winter and the other in spring. Percentage cover of macroalgal species and sessile invertebrates was estimated at approximately 6 week intervals for up to 3 months. MANOV A showed that treatments did not significantly affect cover of macroalgae or barnacles during winter. However, towards the end of the spring experiment (midshore only) cover of barnacles and green foliose turfs did increase in those plots from which mesograzers and/or macro grazers were excluded. The failure of the statistical tests to detect significant differences at some time intervals may have been caused by high levels of variation among replicates. This suggests that factors other than grazing are of overriding importance in determining the distribution of local macroalgae. The existence of a possible symbiotic relationship between Patella oculus and the red foliose alga, Gelidium pristoides, was investigated. The availability of various substratum types, including rock, limpet shells, barnacles etc., and the proportion of the total cover of G.pristoides on each, was calculated. It was shown that a significantly higher proportion of the alga grew on limpet shells, although the availability of this substratum type was low. It is thought that the aggressive behaviour of P.oculus prevents all but juvenile Patella longicosta from grazing on its shell, thus providing a refuge from grazing for G.pristoides.
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  • Date Issued: 1998

Employment equity - An 1 Introductory Workshop for Trade Unionists Organised by the COSATU Education Department

- COSATU

  • Authors: COSATU
  • Date: 1998
  • Subjects: COSATU
  • Language: English
  • Type: text
  • Identifier: http://hdl.handle.net/10962/171887 , vital:42135
  • Description: This workshop is designed to give you a reliable introduction the Employment Equity Act. It is based on hard information and on ACTIVITIES or discussion exercises that will help you to understand how the Act works, who it covers, and what the implications are for trade unionists. Each of the Activities is complemented with information that will help you to understand the Act in more detail. Sections have been added to help you find further information, and to understand the terms that are used in the Act itself. In a two day programme, you are not going to be an 'expert' on the Employment Equity Act, but we hope that you will feel more confident about using the Act, especially in ensuring that it is used to address a wide range of discriminatory practices at the workplace. As with most legislation, the more that you begin to use it, the more its strengths and weaknesses will emerge. It is very important that any weaknesses in the practical application of the Act are reported through your Union to the Federation. This will help the Federation to campaign for improvements in the legislation, and to close any loopholes that allow employers to avoid their responsibilities.
  • Full Text:
  • Date Issued: 1998

Employment Equity - An Introductory Workshop for Trade Unionists Organised by the COSATU Education Department

- COSATU

  • Authors: COSATU
  • Date: 1998
  • Subjects: COSATU
  • Language: English
  • Type: text
  • Identifier: http://hdl.handle.net/10962/137128 , vital:37490
  • Description: This workshop is designed to give you a reliable introduction the Employment Equity Act. It is based on hard information and on ACTIVITIES or discussion exercises that will help you to understand how the Act works, who it covers , and what the implications are for trade unionists. Each of the Activities is complemented with information that will help you to understand the Act in more detail. Sections have been added to help you find further information, and to understand the terms that are used in the Act itself. In a two day programme, you are not going to be an 'expert' on the Employment Equity Act, but we hope that you will feel more confident about using the Act, especially in ensuring that it is used to address a wide range of discriminatory practices at the workplace. As with most legislation, the more that you begin to use it, the more its strengths and weaknesses will emerge. It is very important that any weaknesses in the practical application of the Act are reported through your Union to the Federation. This will help the Federation to campaign for improvements in t he legislation, and to close any loopholes that allow employers to avoid their responsibilities.
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  • Date Issued: 1998

English communication in the hospitality industry: the employees' perspective

- Hobson, Josephine Mary

  • Authors: Hobson, Josephine Mary
  • Date: 1998
  • Subjects: Hospitality industry -- Employees -- Training of -- South Africa , English language -- Study and teaching -- South Africa -- Foreign speakers
  • Language: English
  • Type: Thesis , Masters , MSocSc
  • Identifier: vital:2992 , http://hdl.handle.net/10962/d1002501 , Hospitality industry -- Employees -- Training of -- South Africa , English language -- Study and teaching -- South Africa -- Foreign speakers
  • Description: The purpose of this research project was to explore the English communicative competency of management and supervisory level employees within the South Mrican hospitality industry. The Pro lit English Written Assessment, a competency-based assessment tool, was used to establish a relatively objective measure of the English communicative competency of nineteen managers and supervisors. Thereafter thirteen of these respondents were interviewed to determine their perceptions of their English communicative competency and the impact thereof on their work situation, as well as their perceptions of their learning needs and recommendations for intervention. The researcher selected a multi-method approach to the investigation and sought both quantitative and qualitative data. The assessment revealed that the English reading and writing ability of the respondents is distinctly lower than their recorded education level and inadequate in relation to the tasks they are expected to perform at work. The interviews indicated that the respondents are not aware of their lack of English communicative competency or the implications thereof. However, the respondents expressed important insights into the factors that should be taken into account when planning an educational intervention III an organization. These included the need to incorporate English second language learning principles, to treat the learner as an individual, to involve the learner in the decision-making process, to consider the practical concerns of the learner and to ensure that the programme content is appropriate. Recommendations for human resource practices and research in the hospitality industry are presented.
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  • Date Issued: 1998

Eva's men : gender and power in the establishment of the Cape of Good Hope, 1652–74

- Wells, Julia C

  • Authors: Wells, Julia C
  • Date: 1998
  • Language: English
  • Type: Article
  • Identifier: vital:6148 , http://hdl.handle.net/10962/d1006811 , http://dx.doi.org/10.1017/S0021853798007300
  • Description: This article offers a fresh interpretation of the life of Krotoa/Eva, the famous Khoena interpreter of Jan Van Riebeeck, whose gender gave her a unique position in relation to both Dutch and Khoena society. It appears that her own people sent her to work for the Dutch as a young girl, both to serve as a token of goodwill, to gain prestige as the protegee of the household of a powerful leader and to become familiar with Dutch ways. The Dutch received her comfortably as a servant, child minder and companion for Van Riebeeck's young nieces. When Eva learned Dutch expertly, she quickly became their most trusted interpreter. The evidence also hints at an especially close and sensitive, possibly sexual, relationship between her and Van Riebeeck. When military conflicts left Eva identified as a Dutch collaborator, she contacted her sister's husband, chief Oedasoa. Her direct mediation enabled the Dutch to open up a profitable new trading enterprise with Oedasoa, who in turn used Eva as his personal agent within the Dutch community. Her unique position attracted the attention of a bright young employee of the Company, Pieter Van Meerhoff, who became her lover soon after his arrival at the Cape in 1659. Pieter became actively involved in northern expeditions of exploration and prided himself on his sensitivity and capacity to get on well with various Khoena chiefs. Eva continued as an interpreter, intermediary with Oedasoa and the couple had two children together. Eva and Pieter married only after Van Riebeeck left the Cape. Their decision to conform to the norms of Dutch society disappointed Oedasoa who had offered them enough livestock to establish an independent lifestyle but brought both much higher levels of respect from the Dutch, including significant promotions for Pieter. When Pieter was killed in 1666, heading up a trading mission to Mauritius, Eva's life sharply deteriorated. She died in 1674, accused of having become a drunken pest and prostitute. Eva's story exemplifies how an African woman in an early colonial encounter could manipulate a variety of gender roles. Seen as a safe intermediary by both Africans and Europeans, she built herself a unique career and formed a durable liaison with a spirited young man. However, as the nature of contact between the races deteriorated, her role as intermediary diminished in importance. Ultimately, without Pieter, she could not sustain her pivotal place in Dutch society, dying a miserable death. Her life reflects the rapidly changing nature of early colonial contacts.
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  • Date Issued: 1998

Evaluation of the proposed FDA pilot-dose response methodology for topical corticosteroid bioeqivalence testing [authors' reply in Letters to the Editor]

- Smith, Eric W, Walker, Roderick B, Haigh, John M, Kanfer, Isadore

  • Authors: Smith, Eric W , Walker, Roderick B , Haigh, John M , Kanfer, Isadore
  • Date: 1998
  • Language: English
  • Type: text , Article
  • Identifier: vital:6423 , http://hdl.handle.net/10962/d1006558
  • Description: Reply to: Letter to the Editor by Singh GJ; Fleischer N; Lesko L; Williams R - relating to original article in Pharmaceutical Research (USA), Mar 1997, vol. 14, pp. 303-308.
  • Full Text: false
  • Date Issued: 1998

Excursion to Granitberg and the Klinghardt Mountains, southern Namibia

- Marsh, Julian S

  • Authors: Marsh, Julian S
  • Date: 1998
  • Language: English
  • Type: text , field guide
  • Identifier: http://hdl.handle.net/10962/132118 , vital:36801
  • Description: Three small subvolcanic intrusions (Granitberg, Pomona and Drachenberg) and associated dykes of Cretaceous age, occur between Bogenfels and Prinzen Bucht, S of Luderitz, Namibia. This field trip will chiefly be concerned with rocks that have crystallized from magmas of nepheline syenite composition.
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  • Date Issued: 1998

Eyam' Indoda Iyazeka

- Nogcinile, Composer not specified, Dargie, Dave

F C Erasmus and the politics of South African defence, 1948-1959

- Boulter, Roger Stephen

  • Authors: Boulter, Roger Stephen
  • Date: 1998
  • Subjects: Erasmus, F C (Francois Christiaan) South Africa -- Politics and government -- 1948-1961 South Africa -- Armed Forces -- History South Africa -- Military policy
  • Language: English
  • Type: Thesis , Doctoral , PhD
  • Identifier: vital:2534 , http://hdl.handle.net/10962/d1002386
  • Description: FC Erasmus became South Africa's defence minister in 1948 after two decades as a leading political organiser for the National Party. Although an architect of the Nationalists' post-war election victory he was not considered a minister of the first rank. Erasmus initiated a process of ridding the defence force of officers who he believed were associated with the Smuts government and replacing them with party supporters. As a result the military often lost experienced and talented officers. Erasmus felt that the armed services had been too British in ethos and appearance. He inaugurated tighter regulations on bi-lingualism, reintroduced boer rank titles, launched new uniforms and original medals and decorations, to the acclaim of the volk. His purpose was to have a defence force which was uniquely South African. Many of his policies came under attack not only from the United Party but also groups such as the Torch Commando and the veterans organisations. With the apparent lack of an imminent military threat to the apartheid government Erasmus never received substantial budgetary allocations from finance ministers. The defence force, one without conscription, remained small with largely antiquated equipment for the important air and land forces. However by the decade's end the navy was gradually receiving modern ships under the terms of the Simonstown agreement, which Erasmus had negotiated with Britain. The events of the Sharpeville crisis, just after Erasmus left defence, demonstrated that the armed forces as moulded by the minister were in poor condition to assist the civil power in suppressing disturbances. Overseas Erasmus hoped to increase the acceptability of the Union as a defence partner among Western countries by providing personnel for the Berlin Air Lift and the Korean conflict and promising a contingent for the Middle East. He attempted unsuccessfully to instigate anti-communist alliances for the land and maritime defence of Africa when the European powers were leaving the continent. These actions were primarily to obtain political support for the Union, whose prestige was rapidly decreasing as apartheid became better known. The external initiatives with the exception of the Simonstown naval agreements were not lasting.
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  • Date Issued: 1998

Family diversity : a South African perspective focusing on Whites in Grahamstown

- Ziehl, Susan C

  • Authors: Ziehl, Susan C
  • Date: 1998
  • Subjects: Families -- History -- Research Families -- South Africa -- Grahamstown Families Families -- Research -- South Africa
  • Language: English
  • Type: Thesis , Doctoral , PhD
  • Identifier: vital:3341 , http://hdl.handle.net/10962/d1004467
  • Description: Drawing on developments in the field of family history and studies of families in contemporary settings, the study addresses the question of explaining variations in household patterns. Its empirical basis is a survey of White households in Grahamstown. The surveyed population was broken down in terms of class (occupation) and culture (language) and analyses conducted to determine if there are any statistically significant relationships between these variables and the tendency to reside in particular household structures. The question of 'family ideology' was also addressed as an attempt was made to uncover subjects' views on a variety of family-related issues. On the basis of the research results, a model of the relationship between class, culture and household structure was developed. Its application to a comparison of Black and White household structures in South Africa as well as the United States, is discussed. Finally, attempts at redefining the family are addressed and a new definition of the family proposed.
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  • Date Issued: 1998

Faso Den Kulu

- Kenza Batoma Diallo (author, composer, lead singer), Aliou Traore (violin), Benogo Diakite (ngoni, kangnan), Kabin Kaba Diakite (guitar, bass, yabara), Halima Sangare (chorus), Souleymane Dembele (balafon), Kalibou Diarra (djembe), MALI K7 S.A. Ali Furka Toure Associe, Bamako

Finding the optimum: fluoridation of potable water in South Africa

- Muller, Wilhelmine J, Heath, R G M, Villet, Martin H

  • Authors: Muller, Wilhelmine J , Heath, R G M , Villet, Martin H
  • Date: 1998
  • Subjects: Water SA
  • Language: English
  • Type: Article
  • Identifier: vital:7076 , http://hdl.handle.net/10962/d1009740
  • Description: Since the South African Department of Health has tabled legislation to make fluoridation of public water supplies mandatory, the issue of whether fluoride is beneficial or harmful has, once again, become controversial in South Africa. We reviewed the literature, the experiences of fluoridation in overseas countries and the latest WHO recommendations, and have found that fluoride is desirable at certain levels, and undesirable above these. The following recommendations are made for optimum fluoride levels in South Africa's potable water: The decision to fluoridate a public water supply must be a community decision taken after public consultation. However, it can only be reached when the public is properly informed about the issue. Optimum levels of fluoride for human health range from 0.4 to 0.7 mg F/l, depending on the maximum mean annual temperature. The maximum level of 0.7 mg F/l should not be exceeded. Accordingly, it is recommended that in areas where natural fluoride concentrations in the drinking water exceed 0.7 mg F/l steps be taken to defluoridate the water. As an interim measure, a scale of temperature-adjusted optimum fluoride levels should be adopted in South Africa, rather than a single level covering the wide-ranging ambient temperatures (and corresponding consumption rates of drinking water) in the country. A sliding scale would mean that the community within a water supply region can determine its own fluoride consumption within the optimum range. Fluoridation should be considered only a short-term measure, until economic conditions are such that all South Africans have access to proper dental health care. The duration of fluoridation of a community water supply, and the level of fluoridation (within the optimum range of fluoride levels) should both be considered community decision. However, defluoridation should be a permanent necessity in those areas where the drinking water exceeds levels of 0.7 mg F/l.
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  • Date Issued: 1998

Finding the optimum: fluoridation of potable water in South Africa

- Muller, Wilhelmine J, Heath, R G M, Villet, Martin H

  • Authors: Muller, Wilhelmine J , Heath, R G M , Villet, Martin H
  • Date: 1998
  • Subjects: Water SA
  • Language: English
  • Type: Article
  • Identifier: vital:6921 , http://hdl.handle.net/10962/d1011904
  • Description: Since the South African Department of Health has tabled legislation to make fluoridation of public water supplies mandatory, the issue of whether fluoride is beneficial or harmful has, once again, become controversial in South Africa. We reviewed the literature, the experiences of fluoridation in overseas countries and the latest WHO recommendations, and have found that fluoride is desirable at certain levels, and undesirable above these. The following recommendations are made for optimum fluoride levels in South Africa's potable water: The decision to fluoridate a public water supply must be a community decision taken after public consultation. However, it can only be reached when the public is properly informed about the issue. Optimum levels of fluoride for human health range from 0.4 to 0.7 mg F/l, depending on the maximum mean annual temperature. The maximum level of 0.7 mg F/l should not be exceeded. Accordingly, it is recommended that in areas where natural fluoride concentrations in the drinking water exceed 0.7 mg F/l steps be taken to defluoridate the water. As an interim measure, a scale of temperature-adjusted optimum fluoride levels should be adopted in South Africa, rather than a single level covering the wide-ranging ambient temperatures (and corresponding consumption rates of drinking water) in the country. A sliding scale would mean that the community within a water supply region can determine its own fluoride consumption within the optimum range. Fluoridation should be considered only a short-term measure, until economic conditions are such that all South Africans have access to proper dental health care. The duration of fluoridation of a community water supply, and the level of fluoridation (within the optimum range of fluoride levels) should both be considered community decision. However, defluoridation should be a permanent necessity in those areas where the drinking water exceeds levels of 0.7 mg F/l.
  • Full Text:
  • Date Issued: 1998

Finite element modelling of magma convection and attendant groundwater flow

- Harrison, Keith

  • Authors: Harrison, Keith
  • Date: 1998
  • Subjects: Groundwater flow , Magmas
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: vital:5467 , http://hdl.handle.net/10962/d1005252 , Groundwater flow , Magmas
  • Description: This thesis describes preliminary two- and three-dimensional modelling of mass and heat transport of hot, molten magma in crustal intrusions and of the associated thermally induced flow of groundwater contained in the surrounding country rock. The aim of such modelling is to create a tool with which to predict the location of mineral deposits formed by the transport and subsequent precipitation of minerals dissolved in the convecting groundwater. The momentum equations (Navier-Stokes equations), continuity equation and energy equation are used in conjunction with specially constructed density and viscosity relationships to govern the mass and heat transport processes of magma and groundwater. Finite element methods are used to solve the equations numerically for some simple model geometries. These methods are implemented by a commercial computer software code which is manipulated with a control program constructed by the author for the purpose. The models are of simple two- or three-dimensional geometries which all have an enclosed magma chamber surrounded completely by a shell of country rock through which groundwater is free to move. Modelling begins immediately after the intrusive event when the magma (in most cases rhyolitic) is at its greatest temperature. Heat is allowed to flow from the magma into the country rock causing thermal convection of the groundwater contained therein. The effect of the country rock as a porous medium on the flow of groundwater is modelled by including a distributed resistance term in the momentum equation. The computer code that controls the modelling is such that adaptions made to the models to represent real physical intrusive systems are trivial. Results of the research at this stage allow approximate prediction of the location of mineral deposits. Enhanced predictions can be made by effecting improvements to the models such as a more detailed representation of chemical processes, adaption of the computer code to allow multiple injections of magma and the modelling of frozen magma as a porous medium which admits the flow of groundwater.
  • Full Text:
  • Date Issued: 1998
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