1,523 research outputs found
Facilitation and Mediation in South Africa: Three Case Studies
Excerpt
In this paper I discuss three case studies of facilitation and mediation in South Africa: 1) facilitation between the South African apartheid establishment and the African National Congress in exile from 1963 to 1989; 2) facilitation that eventually led to mediation between Inkatha and the United Democratic Front in Natal over 10 months from 1985 to 1986; and 3)mediation between the African National Congress and the Afrikaner Freedom Foundation (Afrikaner Vryheidstigting, also known as Avstig) over 18 months from 1991 to 1993
Die Via Dolorosa
In die hartjie van Jerusalem, die heilige stad vir Jood, Mohammedaan en Christen staan daar ’n boog, die ,,Ecce Homoboog” genaamd, en 'n klein endjie daarvandaan, die Heilige Grafkerk
Constructive Conflict Intervention in South Africa: Some Lessons
Historically, South Africa has lacked a culture of trust in negotiation as a conflict accommodation mechanism. During the security clampdown of the P. W. Botha era in the 1980s and subsequent polarization, concepts such as negotiation and mediation were viewed with suspicion in various quarters. However, paradoxically, the labour legislation introduced in 1979 promoted black empowerment, which was to lead to improved prospects of meaningful negotiation and the acceptability of mediation in resolving labour disputes. Concurrently, the township turbulence of the mid-1980s also led to local-level negotiations between blacks and whites. It was found at the national political level that, whilst the time was not ripe for mediation, low-profile facilitation as a more acceptable form of intervention in fact paved the way for the political breakthrough of 1990. Insights developed during this period led to the formulation of a number of principles of communication and included the reconciliation of seemingly contrasting options such as negotiation and coercion, impartiality and concern, and incremental steps and radical goals
LEED analysis of a dense lead monolayer on copper (100)
A LEED intensity analysis is reported for the c(5√2 × √2)R45° structure, which is formed by a dense lead monolayer on the (100) surface of copper. Evidence was found that the adsorbate atoms do not arrange pseudo-hexagonally (i.e. without sixfold intra-layer coordination) as expected for a dense two-dimensional package. It was confirmed that the lead atoms still tend to occupy the hollow sites of the (100) surface and arrange in the narrow domains of a strained c(2 × 2) structure. These domains are regularly intersected by dislocation lines, so that adjacent domains are in antiphase position. Within this arrangement the adsorbate atoms are mutually equidistant with closer spacings than in bulk lead. The growth of the monolayer and the epitaxial growth of lead on copper (100) in Stranski-Krastanov mode are correlated to this structure
Estimating Scale Efficiency Of Platinum-Mining Companies Environmental Performance: A South African Perspective
The purpose of the study is to develop a data envelopment analysis (DEA) model to estimate the relative scale efficiency of platinum-mining companies environmental performance. South African platinum-mines were used to demonstrate the model, which uses environmental performance indicators as the input variables in order to generate mineral extraction and financial performances as the output variables. The input variables considered were greenhouse gas emissions, water usage and energy usage, while the output variables were platinum production, return on equity and return on assets. The contribution of the study is that a DEA model was developed that could identify relatively efficient companies that could act as benchmarks with regard to environmental issues in the mining sector. A further contribution is that the study concluded that platinum-mining companies tend not to achieve economies of scale, where the companies that are relatively larger in size tend to operate on a scale that is too large and companies that are physically relatively smaller in size tend to operate on a scale that is too small
A Model To Determine Capital Needs For Efficient Boer Goat Farming
The purpose of this study is to determine the optimal capital needs to establish a Boer goat farm. A study was performed to simulate the financial performance of 55 scenarios, with varying farm sizes and varying levels of capital employed. These results formed the basis to create a data envelopment analysis model, where farm sizes and capital employed are used as input variables versus eight financial performance indicators as output variables. The study found that the scenarios are technically efficient, but only 23 of the 55 scenarios are fully scale efficient, with six scenarios operating on a scale that is too small and 26 operating on a scale that is too large, which implies that 32 of the scenarios did not achieve economies of scale. Furthermore, nine of the ten farm sizes used are not scale efficient when using 100% of their capital needs. The study therefore concludes that the financial success of starting a South African (SA) Boer goat farm is locked up in the natural growth of the herd, with the practical implication that aspirating SA Boer goat farmers will be most efficient when using a limited amount of capital and not immediately stock the farm at the maximum level of animals, but to stock it only partly and wait for the gain in the growth of the herd
DNA amplified fingerprinting, a useful tool for determination of genetic origin and diversity analysis in Citrus
We used three short repetitive nucleotide sequences [(GTG)5, (TAC)5, and (GACA)4] either as radiolabeled probes for hybridization with restricted Citrus DNA or as single primers in polymerase chain reaction amplification experiments with total genomic DNA. We tested the ability of the sequences to discriminate between seedlings of zygotic or nuclear origin in the progeny of a Volkamer lemon #Citrus volkameriana# Ten. & Pasq.) tree. The genetic variability within two species [#Citrus sinensis# (L.) Osbeck (sweet oranges) and #Citrus reticulata# Blanco and relatives (mandarins)] was evaluated. DNA amplified figerprinting with single primers was the more successful technique for discriminating between nucellular and zygotic seedlings. Although we were not able to distinguish among 10 cultivars of #C. sinensis#, all 10 #C. reticulata# cultivars tested were distinguishable. However, it still is difficult to identify the putative parents of a hybrid plant when the two parental genomes are closely related. (Résumé d'auteur
Cyclic changes of steroid production activity in the ovary and estradiol levels in the blood plasma of the mudfish, Labeo capensis
The annual reproductive cycle of female Labeo capensiswas investigated using histochemical and endocrinological parameters. It was found that steroid production occurred in three localities in the ovary, namely, special theca cells, granulosa cells and interstitial cells. The 3β-HSD activity (steroid activity) in the granulosa cells and estradiol-17β concentration in the plasma reached a peak during exogenous vitellogenesis. During the oocyte maturation phase the 3β-HSD activity in the special theca cells and the GSI reached a maximum. Possible functions of steroids secreted by special theca cells and granulosa cells are discussed.S. Afr. J. Zool. 1987,22(3
Cr(VI) formation during ozonation of Cr-containing materials in aqueous suspension – implications for water treatment
Ozonation, or advanced oxidation processes (utilising ozone decomposition products as oxidants) are widely used in industrial wastewater and drinking water treatment plants. In these applications the use of ozone is based on ozone and its decomposition by-products being strong oxidants. In this paper, the possible oxidation of non-Cr(VI) Cr-containing materials suspended in water during ozonation, is presented. This study is of particular interest within the South African context, considering that South Africa holds the majority of global chromium ore resources and has the largest Cr-related industry in the world. Chromium also occurs commonly in other industrial waste materials and is a naturally-occurring element in the crust of the earth. Results indicated that in situ formation of Cr(VI) is possible during aqueous ozonation. pH had a significant influence, since the decomposition products of aqueous O3, i.e. hydroxyl radicals formed at higher pH levels, were found to be predominantly responsible for Cr(VI) formation. Increased ozonation contact time, water temperature and solid loading also resulted in higher Cr(VI) concentrations being formed
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