OpenUCT :: Browsing by Department "Not Specified"

Browsing by Department "Not Specified"

Now showing 1 - 20 of 40

Open Access
A biscuit fortified with iron, iodine and B-carotene as a strategy to address micronutrient deficiencies in primary school children
(2001) Van Stuijvenberg, Martha Elizabeth; Hussey, G. D.; Benade, A. J. S
Deficiencies of vitamin A, iron, and iodine continue to be prevalent in developing countries worldwide and can, in addition to the classic consequences such as nutritional anaemia, goitre, cretinism, xerophthalmia and blindness caused by severe deficiencies, also affect the growth, development and immunity of young children. The various internationally acknowledged strategies for combating micronutrient deficiencies include high-dose supplementation, food fortification, dietary diversification and nutrition education. The aim of this research was to evaluate a micronutrient-fortified biscuit as a strategy to address micronutrient deficiencies in primary school children from a poor rural community. The research comprised three phases. During the first phase the effect of a biscuit fortified with iron, iodine, and B-carotene on the vitamin A, iron and iodine status of 115 children was evaluated and compared with 113 controls, in a randomised placebo-controlled trial. To enhance the absorption of iron a vitamin C-fortified cold drink was given together with the biscuit. Anthropometric status, cognitive function and morbidity were assessed as secondary outcomes. The 12-month intervention resulted in a significant improvement in serum retinol, serum ferritin, transferrin saturation, haemoglobin and urinary iodine excretion. Morbidity and cognitive function, particularly the cognitive function in the children presenting with low iron status and with goitre! at baseline, were also favourably affected. Linear growth was positively affected only in the children with marginal iron stores at baseline. During the second phase of this study the long-term effectiveness of the biscuit programme, in terms of elimination of micronutrient deficiencies, compliance, acceptability and sustainability, was evaluated in a longitudinal study over a period of 30 months. In addition, cross-sectional data on vitamin A and iron status from subsequent studies conducted in the same school at 33, 42 and 45 months after the start of the original biscuit intervention, during which time the fortified biscuit continued to be distributed at the school, are reported. Although micronutrient status improved significantly during the 12 months of the first study, all variables (except urinary iodine) returned to pre-intervention levels when the schools reopened after the summer holiday. Serum retinol increased again during the next nine months, but was significantly lower in a subsequent survey, carried out directly after the summer holiday; this pattern was repeated in two further cross-sectional surveys. Iron status showed no recovery during a subsequent intervention period when the vitamin C-fortified cold drink was supplied on a less frequent basis, or during the period that ferrous bisglycinate was used as iron fortificant. Because of the compulsory iodisation of salt, that came into effect halfway through the first phase of the study, improved iodine status, as measured by urinary iodine excretion, was maintained. In the third phase of the research, red palm oil, a rich natural source of B-carotene, was examined as an alternative vitamin A fortificant in the biscuit. This study contained elements of both a randomised placebo-controlled trial and an equivalence trial. The biscuit with a red palm oil-based shortening was shown to be as effective as the biscuit with fl-carotene from a synthetic source in improving the vitamin A status of these children. In conclusion, the results of the studies described in this thesis showed that a micronutient-fortified biscuit is a feasible, practical and effective way of improving the micronutrient status of primary school children from a poor rural community. Long-term evaluation of this programme, however, showed that improved micronutrient status is not sustained during the long summer school holidays, and it is suggested that the biscuit programme is supplemented with other strategies, such as local food production programmes and nutrition education. Red palm oil, with all of its additional qualities (i.e. no trans fatty acids; rich source of antioxidants), appears to be an attractive alternative for use as a vitamin A fortificant. The choice of the iron compound to be used in the biscuit, however, needs further investigation.
Open Access
A comparative analysis of market and minimum wages in South Africa volume 2
(1986) Hipkin, I B
Open Access
A comparative examination of the extent to which the South African and the English legal systems recognize the defence of provocation in homicide cases
(1993) Ackermann, Leon Keith; Leeman, I
On charges of murder or assault, it often appears that the accused's aggression was immediately preceded by provocative behaviour e.g. taunts or insults by the victim which induced anger or rage in the accused and which gave rise to his aggression. The present study aims to address the question whether, in South African law, a defence is available to an accused in such cases. Since the issue of provocation in South African law usually arises in homicide cases, this study will be restricted to such cases. It will be shown that, during the past couple of decades, the South African law relating to provocation has undergone significant development. In 1925, the Appellate Division declared s 141 of the Native Territories Penal Code to be an accurate reflection of the South African law relating to provocation. In terms of this section, provocation could operate as a partial defence on a charge of murder: where an accused successfully raised the defence he would be convicted of culpable homicide. Recently, however, it has become clear that provocation may operate as a complete defence, resulting in an accused leaving the court as a free person. It will be argued that the above development reflects a general shift in our law, starting in the 1950's, from a policy-based to a principle-based approach to criminal liability.
Open Access
A comparison of the effects of two different grazing systems on community attributes of eastern Karoo vegetation
(1988) Hallward, Jennifer R; Meadows, Micheal
Soil erosion is regarded as a serious problem throughout the world. Erosion is. caused by both water and wind. Al though the two usually occur ·together, wind erosion has received little attention with the exception of the problems associated with croplands. Wind erosion can, however, also be a serious problem in natural grazing lands. In this research project an attempt is made to . determine the areas of potential wind erosion in the Cape Province through the use of two different models. The models used were developed and applied in semi-arid areas and thus were considered to be applicable in South Africa. The models used are: The Wind Erosion Equation developed by Chepil, ·woodruff and Sideway in the United States; and Lynch and Edward's Model for the Analysis of Limited Climatic Data, developed in Australia. There are two aspects to soi 1 erosion by wind - the erodibility of the soil as determined by moisture, grains size, aggregates, plant cover and surface topography; and soil erosive ty as determined by wind strength and duration. Methods to control wind erosion are based on decreasing erosivity through the establishment of shelterbelts and by decreasing erodibility ty through improving plant cover, aggregate stability and moisture retention properties. Efforts at wind erosion measurement are generally ineffective. A number of models have been developed to overcome these difficulties and to allow for prediction of soil loss. Two of these models are applied to conditions in the Cape Province. This area covers a wind range of climatic, soil and agricultural conditions and as such provides an appropriate area for their application. It is, however, concluded that neither of these models can be directly applied to conditions in the Cape Province. The seasonal rainfall distribution and the uneven distribution of the data points contribute to the ineffectiveness of the models. The greatest problem, however, is the importance of management in determining whether or not wind erosion occurs. As a result, although the models illustrate the general climatic trends affecting the susceptibility of an area to wind erosion, the lack of a management factor accounts for the lack of detail.
Open Access
A model for an urban structure on the Cape Flats
(1969) Fox, Revel; Cotta, Jose
In 1966 the American Institute of Planners mounted a two year consultation to study the Next Fifty Years. Part 1 was entitled Optimum Environment with Man as the Measure. It was this arresting theme and the papers that flowed from it ( 1) that became the central idea and the broad objective of the study. The method by which this study is carried out is by means of a model for an urban structure, as a basis for a satisfactory framework for human settlement. After due consideration a purely abstract diagram is rejected in favour of a model designed in conformity with all known criteria but theoretical in the sense that detailed topographical and locality constraints are subdued. With this method the essential nature of the diagram is undiluted, and the processes of analysis are easily grasped.
Open Access
A study of the thermal degradation of model compounds of amine-cured epoxide resins
(1971) Percy, Vivienne Ann
[page 49 missing] The thermal ciegradation of rr..odel compounds of a~ine-cur2d epoxide resins has been studied with the aim of investigating the thermal stability of the "cure-linkage". · 1, 3-Diphenoxypropan-2 ~ol and l-(N-ethylanilino)-3-phenoxypropan-2-ol have been synthesised and degraded m~er various conditions. The results of these degradations are presented and their relevance to t~1.e thermal dE:!gradation of amine-cured epoxide resins is discussed. The effect of the presence of alumina, which b.as been used as a filler for epoxide resins, on the thermal stability uf the model compounds has been examined. The possibility that the degradation of model compounds may be used as a synthetic route to benzofuran has been investigated.
Open Access
A towed submersible
(1973) Dunkley, William Rae; Boyle, W P
One way to continuously scan the sea would be to tow a submarine vehicle that would cycle vertically in the water between set depths. Its period of vertical oscillation would be short compared with the changes in parameters to be measured, in this case long internal waves. It would carry continuously recording depth and temperature measuring instruments; if possible storing the results on a magnetic tape or paper drum or else transmitting the data to the towing vessel. It could be designed so that it was relatively independent of ship speed and self-contained so that it could operate unattended for long periods of the normal oceanographic surveys require regular stops for geological core samples to be taken or for sampling reversing bottles to be cast, and during these moments the vehicle could be hauled aboard and its recording sheets or power sources renewed as necessary. Accordingly a specification was determined in consultation with members of the Oceanography Department of the University for a suitable towed body (Table 1.1). Initially it was to carry temperature measuring devices, but it should have the possibility of extending this to carry instruments to measure pH, conductivity, etc.. The only published work at present concerning such a device is by Glover (2), who is developing an undulating plankton recorder for long distance towing with an oscillating wave length of 20 km. It is not very appropriate to make direct comparison with Glover's work since there local instabilities are damped out during the long, slow oscillations, whereas for a device with a much shorter wave period such local perturbations crucially affect the performance. A device with a relatively short undulation period for intense data collection would be a major advance in oceanographic recording techniques, and one that could have a wide variety of commercial applications.
Open Access
Africanisation of worship in the Langa Moravian church : liturgy in a new key
(2000) Kronenberg, Joy Faith; Mazamisa, Welile
This thesis explores "inculturation as it has and has not taken place in the Moravian Church in general and specifically at Langa where the writer has been a probation minister from 1998- 1999 and an ordained minister from 1999 onwards. It explores the amelioration of the present undesirable situation. It is recognised that life is not static but dynamic, that worldviews change, and human identity is reconstructed. So, moves are indicated that will assist to transform the attitudes of the faithful. We need to aim for an atmosphere of discussion and shared decision making that is for active participation in leadership and genuine collegiality in a Church which no longer insists on its own monochrome culture but exists as a multicultural family of sisters and brothers in communion. This study seeks to examine the socio-literary function of the theme of this thesis Africanisation within the Langa Moravian Congregation: Liturgy in a New Key and will adopt a socio-linguistic perspective. The use of this approach emanates from the fact that this study is concerned about the language and anti-language as practised in the Church and society. Social scientific methods are a departure from the positivist empiricism of the historical critical method With the imposition of one religion over another and the unfounded assumption that one is universal, single, normative and a criterion according to which the world religions ought to be judged, the missionaries committed a social sin against the whole world; that human beings, in general and Africans in particular were judged as either cultured or uncultured, civilised or uncivilised, human or savages, through the Christian religion; that all other religions ought to be judged as either being true, false, authentic and /or revealed through Christianity. The term 'imposition' refers to a method or process by which doctrines, religious customs, morals and ways of praying and acting are brought from the outside, from a foreign or alien culture and tradition and imposed or forced upon the new cultures. It shows no appreciation, no respect or regard for the values, customs and religious traditions of the group that is the object of mission. The first missionaries who came to South Africa infiltrated all sectors of the social infrastructure and became saviour gods in their own right, while at the same time they did everything within their power to displace African culture and Westemise the Africans. We are made to live in a network of interdependence with one another, with God and with the rest of God's creation. As we say in Xhosa Umntu ngumntu ngabantu- a person is a person through other persons. A solitary human being is a contradiction in terms. A totally self-sufficient human being is ultimately subhuman. This is also true of the different nations: that one people has particular gifts, a distinct world view, a cultural ethos, which is not necessarily better or superior to those of other people. So we find that Africans have a strong sense of community, of belonging, whereas Occidentals have in contrast a strong sense of the individual person. These attributes, in isolation and pushed to extremes have weaknesses Within the wider perspective of sociolinguistics, the model that used here is that of Language and Anti-language. An antilanguage is a language that is generated by an anti-society, that is, a social collectively which is embedded in another society but feels threatened or alienated by the dominant conventional norms of the wider society and therefore sees itself as a conscious alternative to it. The language generated by such a social collectively serves to express its alternative view of social reality and becomes a mode of resistance to the prevailing social order. I hope this study will re-emphasise my conviction that the Church remains the terrain as well as the weapon of struggle for the liberation of the poor, marginalised, oppressed and exploited.
Open Access
An evaluation of aspects of group areas legislation in South Africa
(1987) Schoombee, Johannes Theodorus; Dean, Barry
In this study an evaluation of the Group Areas Act as a major piece of 'governmental law' is undertaken. The Act (originally introduced in 1950) is a prime example of what may be termed governmental law because it constitutes the centre-piece of a comprehensive legislative and administrative regime aimed at implementing political objectives of a far-reaching and long-term nature. The system of group areas is widely recognised as a cornerstone of the policy of apartheid (racial segregation) pursued by the South African government. The main purpose of group areas legislation, which explains its complexity and essential characteristics, is to bring about the territorial segregation of the racial groups defined in the Act. Existing legal publications which deal with group areas in a comprehensive way generally cover only the 'black letter' aspects of the law involved and are presently outdated in certain important respects. In the present study (which covers the period up to the end of 1986) the 'black letter' legal aspects are also analysed in fair detail, but the system of group areas is further evaluated thematically and critically from the perspective of constitutional and administrative law, and also with reference to issues in the fields of jurisprudence, the interpretation of statutes and the interaction between public and private law. Thus, the cardinal role played by the wide discretionary powers and specific policies (such as selective non-enforcement) of the executive branch of government is discussed and evaluated with reference to doctrines such as the Rule of Law, and the concern in administrative law relating to the confining, structuring and checking of discretionary administrative powers. An extensive analysis of judicial attitudes and approaches in group areas cases is undertaken and these are related to the aspects of the doctrine of legal positivism. In respect of judicial attitudes, the conclusion is reached that the Supreme Court, and in particular the Appellate Division, failed in its duty to serve as buttress between the citizen and draconian government powers, and in certain key decisions actually indulged in what may be termed 'apartheid thinking'.
Open Access
An experimental study of human melanoma cells cutured in vitro
(1981) Hoal, Eileen Garner; Wilson, E L
This thesis records the results of a series of experiments that were designed to examine the biology of human malignant melanoma cells cultured in vitro. The studies were so planned as to document phenotypic differences that exist between melanomas, to define respects in which melanoma cell differentiation could be modulated and to correlate biochemical variability with in vivo behaviour as measured in the nude mouse. Melanoma cell lines were established from biopsy material obtained from 7 patients at Groote Schuur Hospital. Two of these lines synthesized tyrosinase and melanin at a rate that was directly related to cell density. The five remaining lines did not pigment. ii All of the lines showed aneuploidy; 5 of the 7 showed anchorageindependent growth; and 6 of the 7 grew as lethal tumours in nude mice. As has been found with all other melanomas studied, these cells released a plasminogen activator that was chemically and immunologically identical to tissue activator. One of the lines proved to be an exception to this general rule in that it synthesized urokinase-type enzyme. Unlike most other human cells cultured in vitro, melanoma cells proved to be relatively refractory to hormonal stimuli. Addition of estrogen, progesterone, testosterone, dexamethasone or melanocyte-stimulating hormone to the culture medium had very little effect on cellular release of plasminogen activator, upon cell growth, or upon cellular morphology. Although remarkably resistant to hormonal influences, cellular release of plasminogen activator did appear to be inhibited to a striking degree by cocultivation with normal skin fibroblasts. This observation led to the discovery of a phenomenon in which fibroblasts of many types bound tissue-type plasminogen activator and so removed it from the medium. This was accompanied by an apparent change in molecular weight of the melanoma cell enzyme from 72K daltons to approximately 115K daltons, suggesting the presence of a 40-SOK binding molecule. iii In an attempt to influence in vitro differentiation, the tumour promoter tetradecanoylphorbol acetate, and the differentiation-inducing retinoid, retinoic acid, were added to the two pigmenting cell lines. The effects of these compounds on induction of tyrosinase activity, morphological change or plasminogen activator release differed. In the one cell line, tetradecanoylphorbol acetate caused morphological maturation with a decrease in the rate of plasminogen activator release and no obvious effect upon pigmentation. This line was relatively resistant to the action of retinoids. The other pigmenting line responded hardly at all to the tumour promoter. Retinoic acid, on the other hand, inhibited the induction of tyrosinase activity, yet caused an inhibition of growth and plasminogen activator release. A number of interesting observations could be made in experiments in which melanoma cells were inoculated into nude mice. Firstly, the growth rate of the tumours ~n vivo correlated poorly with the doubling times of the corresponding cells cultured in vitro. Secondly, despite a marked inhibitory effect of fibroblasts on plasminogen activator in vitro, coinjection of fibroblasts and melanoma cells in vivo greatly enhanced tumour growth when small tumour cell inocula were used and shortened the latent period for tumour appearance with larger inocula. Thirdly, melanomas growing in nude mice differed strikingly in their ability to elicit a desmoplastic response. Tumours in which large amounts of host connective tissue were deposited tended to be heavily contaminated with murine fibroblasts when re-established in vitro. This contamination was not seen with tumours that contained very little connective tissue. These results point to the existence of a melanoma-associated fibrogenic factor. Finally, by excision of the primary tumour, it was possible to avoid death of the animal from local complications and so allow time for metastases to develop. In three mice, metastatic melanoma deposits could be detected by this device, so establishing a protocol for the use of nude mice as valid models for the experimental study of metastatic spread of human tumours.
Open Access
An investigation of the psychological, physiological and endocrinological factors underlying two types of alcoholism
(1978) Loebenstein, Larry
Fifteen delta and eleven gamma alcoholics were given a moderate dose of alcohoL Changes in extroversion, neuroticism, anxiety, assertiveness, Basal Skin Conductance and urinary levels of epinephrine and norepinephrine were measured. The changes that significantly differentiated the gamma group from the delta group were those measured by the psychological variables. In the sober state, measures of extroversion, anxiety and assertiveness, also differentiated the two groups. Although the physiological and biochemical changes were significant within each group, their differential responses were not significant. The results have therapeutic implications.
Open Access
Aspects of style, form and harmony in the sacred music of Heinrich Schutz, with specific reference to his Psalms of David and Geistliche Chormusik
(1995) Lambert, Peter Bernard; Smith, Barry
In this dissertation, the sacred music of Schutz is discussed within the context of his contribution as a church composer during the period when music was experiencing the gradual transition from the renaissance to the baroque. Schutz assimilated the principles of composition which characterised the late renaissance and applied them in a manner which at the same time reflected his own progressive approach to these established principles. This progressive nature enabled him to introduce the Italian style recitativo in Germany for the first time, and it made him receptive to the use of the monodic style, which he also absorbed in Italy. He assumed an important role as a Protestant composer and considered it of fundamental importance to expound the meaning, and thereby realize the aims, of the sacred text when set to music. His Lutheran background influenced his choice of text sources as well as his extensive use of the vernacular for his sacred music. Examples from his Psalms of David as well as the Geistliche Chom1usik, are used to illustrate aspects of his contribution to music in Germany, and to music in general.
Open Access
Coastal state control over historic wrecks situated on the continental shelf as defined in article 76 of the Law of the Sea Convention 1982
(1991) Allen, B L
In this minor dissertation the coastal states rights, jurisdiction and control in respect of wrecks, specifically historic wrecks, situated on the continental shelf are examined in relation to the current state of the law applicable to this area, both customary and conventional. Discussion and argument are developed under the following headings. THE TWILIGHT ZONE This part constitutes the introduction to the subject matter and includes a brief description of the evolution of International Customary Law relating to the continental shelf which resulted in the 1982 Law of the Sea Convention definition which specified rights to natural resources. BOUNDARIES OF THE CONTINENTAL SHELF Area is clarified and distances of outer limit from-baseline (200 nautical miles extending to a possible 350 nautical miles under certain circumstances) is discussed. Necessity for coastal state to inform the Commission on the limits of the Continental Shelf of the limits of its continental shelf beyond 200 nautical miles is noted. Article 303(2) relating to the contiguous zone and historical objects is referred to and the effects of its provisions on the area under examination is discussed. The starting point of the area is 24 nautical miles from the baseline as explained. Mention is also made of the overlapping of the exclusive economic zone with the sea bed and subsoil of the continental shelf and attention is drawn to the provisions of art 59 relating to the settlement of disputes over non attributed rights in the exclusive economic zone.
Open Access
Computational and modelling aspects of marine riser analysis
(1987) Phaal, Robert
[page 119, 132 missing] In recent years much interest has been shown iri the design of offshore structures. Flexible members such as marine risers and mooring cables are critical components in such structures. These systems are characterised by nonlinear geometry and loading. In the formulation of an algorithm to model such systems, simplifying assumptions must often be made. This thesis attempts firstly to give an overview of the literature available in this field. The testing of a riser model is important to ensure that it may be used with confidence. There are several sources of error inherent in a model of this nature. Modelling errors are those caused by the simplifying assumptions made in developing the mathematical statement of the model. Numerical errors include those due to the approximation method and the finite accuracy of the computing machine. Finally, there is a level of randomness in the design parameters, which results in a lack of confidence and an uncertainty in the response obtained from a deterministic model. This thesis attempts to qualify, if not quantify, the sources of error innate to the modelling of flexible offshore structures; in particular, marine risers. Extensive use has been made of a sophisticated, commercially available finite element program, ABAQUS. Three commonly occuring riser configurations have been modelled successfully with ABAQUS. These are the standard, the catenary, and the hanging riser configurations (see figure 1.1). A geometrically linearised finite element riser model has also been developed and tested. The linearised model is shown to be applicable to problems where the maximum model deflection is less than approximately 10% of the riser length. A Probabilistic Finite Element Method (PFEM) has been implemented in order to investigate one source of uncertainty in the problem: that of the hydrodynamic loading. The method is shown to have limitations expressed by coefficient of variation bounds for the random parameters. The C data available in the literature is within these bounds, d while the C data is not. These bounds are shown to be a problem dependent, and the PFEM to be more applicable to the modeiling of the uncertainties associated with the analysis of drag dominated problems such as mooring cables.
Open Access
Consumer law and unfair contract terms: the Austrian answer to a worldwide challenge
(1987) Winkler, T G
the object of this thesis is to give a comprehensive description and a critical evaluation of consumer law, a field of law which has developed rapidly in the last two decades and the exact contents and function of which are the subject of keen academic debate.
Open Access
Continuum structure in strong electromagnetic fields
(1987) O'Connor, Michael
[Pages missing ] In this chapter, the Dirac equation for spherically symmetric potentials is closely examined. Analytical solutions are found for a square well potential, the properties of which will be used later when the equation is solved for arbitrary potentials using numerical methods. The starting point is the Dirac equation for stationary states. For convenience, the units are chosen such that h=c=l. However, in explicit calculations, these constants are re-introduced using the prescription hc=197 Mev fm. When the coupling constant a is used, its value is taken as 1/137.
Open Access
Derivation of a test for measuring degree of environmental education
(1985) Pohorille, Ralph Leon
The need to derive a test for measuring degree of environmental education in the South African context was perceived. A test aimed at standard 6- pupils was devised based on three components: knowledge, feeling and action. Three item pools were developed and scrutinised by panels of experts and a pilot test was formulated. The results of the pilot test were analysed statistically and the test refined into a shorter, final test which was found to be both reliable and valid. This final test was implemented with a sample population of some 300 pupils and was found to discriminate between those who are environmentally educated and those who are not. Several uses of the test are suggested. An attempt to use teacher judgement as an independent means of identifying environmentally educated pupils was not iuccessful.
Open Access
Designing a maintenance management system for a small to medium sized manufacturing plant
(1985) Drysdale, Gavin John
[page 54, 55 missing] During the last three decades, technology has advanced at an incredible rate. Plants have become more automated and complex, and it is evident thet the quality of service provided by the maintenance department has become a cornerstone of profitability. The idea of a Maintenance Management System is not a new one and considerable research has been carried out on various facets of the subject. However, it appears that much of this research has been directed at large organisations. This thesis covers research which is aimed at small to medium-sized plants with limited resources, and which do not have a developed Maintenance Management System. The objectives of the research concern the iMplementation of a system which will: design and al enable engineering staff to attend to breakdowns and other work in a logical manner, which will increase the overall efficiency of the plant. bl control artisan hours effectively and reduce overtime hours worked cl maintain accurate service and history records dl reduce unnecessary stoppages and obtain optimum plant availability at the minimum possible cost e) improve the attitude of executive management towards maintenance policies and provide a safe working environment fJ identify unreliable machines which are uneconomical to maintain gJ encourage the use of maintenance manuals ( i i ) These objectives were achieved by designing a Management System which included the following: Maintenance 1. A Maintenance Work Order System. This system would ensure that all work was carried out effectively. It would also produce feedback on maintenance performance, costs and equipment history. 2. A Preventive Maintenance System. Such a system would be modest to begin with and could gradually become more comprehensive to include all production equipment. 3. A Maintenance Information System. The trend nowadays is toward computerization. Therefore, a simple computerbased system was designed which could manipulate data on equipment inventory and history records. The system could be expanded to suit individual requirements. 4. Pareto Analysis. This technique could be used to identify key areas needing special attention, such as high downtime costs. 5. Performance Indices. By collecting data related to cost and performance, it was demonstrated how these indices could be calculated and plotted regularly. The research enabled Management Bystem for the author a smal 1 to to design a medium sized Maintenance plant. The investigation and analysis of results demonstrated that Pareto Analysis could be used to identify critical equipment, while performance indices would be useful tools for analysing maintenance or production trends. The importance of selling this system to top management was emphasised, because the success of the system would depend on their complete acceptance. For the plant under investigation, a central maintenance organisation plan was recommended because of its flexibility. The benefits of contract maintenance, and it's limits, were also highlighted. This thesis makes a contribution to the field of maintenance management because it provides clear guidelines on how to desi~n a suitable Maintenance Management System to satisfy individual requirements.
Open Access
Die administrasie van Brits Kaffraria
(1933) De Villiers, C B
Page with thesis details missingThesis in afrikaans
Open Access
Emerging trends in labour legislation and policy in the SADC region : the experiences of Botswana and Swaziland in the context of the ILO convention on freedom of association and protection of the right to organise (C.87)
(2003) Ntumy, Emmanuel K B; Kalula, Evance
The advent of the Southern African Development Community (SADC) brought with it a · euphoric expectation of instantaneous transformation of the sub-region into a vibrant, viable economic haven for its inhabitants. Time and reality have since reduced this euphoria to disillusionment. This state of affairs has resulted in a lot of introspection leading to vital questions about the readiness and capacity of the member states to let go of their national sovereignty as a price for more meaningful regional integration. Embedded in this is the major question of how the labour law regimes have lent themselves to change and whether they can be transformed into engines of growth that can facilitate employment within internationally acceptable environments. To attempt to answer this question, one needs to examine closely the individual domestic situations in order to determine how strong differences are in the context of international labour standards such as the very basic freedom of association and protection of the right to organise. The examination of • Botswana and Swaziland was therefore undertaken for this purpose. It has led us to the conclusion that essentially, labour legislation in these countries is common in many significant respects, unwilling to approximate to expected international standards but flexible enough for potential harmonization and transformation. This dissertation is however fairly inconclusive given the size of the SADC itself. It is therefore only a pointer, a part of the critical foundation of enquiry. It is thus only part of the preliminary survey for the roadmap that needs to be drawn on which a workable integration in the SADC could be built in the future.

Browsing by Department "Not Specified"

Results Per Page

Sort Options