1,547 research outputs found
Do Non-Economic Quality of Life Factors Drive Immigration?
This paper contributes to the immigration literature by generating two unique non-economic quality of life (QOL) indices and testing their role on recent migration patterns. Applying the generated quality of life indices in conjunction with other independent welfare measures to an extended gravity model of immigration for 16 OECD destination countries from 1991 to 2000 suggests an insignificant role for QOL in the immigration process. The panel results suggest that other economic variables such as the stock of immigrants from the source country already living in the OECD destination country, population size, relative incomes, and geographic factors all significantly drive the flow of immigration for the sample.immigration, quality of life, gravity model
Behoort christene en marxiste in Suid - Afrika in dialoog met mekaar te tree?
Should Christians and Marxists enter into dialogue with each other? The question that is posed in this article is whether dialogue between Chr ist ians and Marxis ts in South Africa is desirable or not. Reasons are discussed for entering into a dialogue that was put forward by Christians and Marxists during the East European Christian -Marx is t dialogue, as well as those propagated b y the Christians for Socialism movement in Latin America. Each of these motivations for entering into dialogue is evaluated for its validity. Once the validity of some of these motivations has been proved, a description of the current state of attitudes towards a Chr istian-Marxis t dialogue in South Africa is given. The most popular objections against such a dialogue are discussed and it will be shown that these objections are unfounded. As an alternative approach to this negative attitude towards a dialogue a new approach will be propagated
The underwater separation of diamantiferous marine gravels
Includes bibliography.Three underwater separation devices have been designed, constructed, tested and analysed to determine their suitability for the underwater separation of diamantiferous marine gravels. The research facility where the devices were tested was constructed at the University of Cape Town's Hydrotransport Research facility. The first device tested was a converging elutriator which separates the oversize gravel from the smaller diamond-bearing gravel, using their varying particle settling velocities in an upward flowing fluid. The cyclosieve and spirosieve are two other choices that both use rotational flow to create a centrifugal force, which forces the gravel onto a screening surface. The test work carried out investigated the effect of various variable parameters on the separation efficiency of each device
Die effek van sowjet en Oos-Europese veranderings op kommunistiese en sosialistiese denke in Suid-Afrika
Vie purpose of (his article is lo determine from a philosophical point of view the extent to which socialist and communist organizations in South Africa have been influenced by the changes that have occurred in Eastern Europe. In order to make such an assessment, it is necessary to identify the nature of the events that occurred in Eastern Europe and the Soviet Union. This aspect is discussed in the first section of this article. Following this it is argued that different socialist and or communist groups have been influenced in different ways by the Easi-bloc events. In order to demonstrate this difference, the way in which three different political groups in South Africa have been influenced will be highlighted. These groups are the AN C (and its partners the UDF and COSATO), the SACP and the Black Consciousness Movements (like AZAPO). In the concluding section a few observations on the implications of the Eastern European changes for the political and economic debate in South Africa are outlined
Beyond Kolpak: EU Law’s unforeseen contribution to the movement of African Cricketers
The movement of professional cricketers from South Africa to England to play in County Cricket has expanded since the late 1960s. It became more attractive during the period of South African isolation and some players saw English cricket as a route to play at Test match level through changing national allegiance. This paper explores the role of law in facilitating movement in two ways. First, in the case of Greig, the attempt to ban players who chose to participate in the new commercial venture, World Series Cricket, was overturned. Second, in the Kolpak case a decision of the European Court of Justice paved the way for South Africans and Zimbabweans to abandon their national side and play in England as domestic players without the usual constraints applied to overseas players. The opportunity was taken by numerous players because of the political upheaval in cricket that was contemporaneously taking place in both South Africa and Zimbabwe. The movement of players caused concern in both South Africa and England and led to a re-consideration of the financial relationships between governing bodies and players
A comprehensive approach to the development of thinking skills
The development of independent and innovative thinking entails much more than merely the acquisition of a series of thinking skills. A comprehensive approach based upon inter-disciplinary cooperation between, among others, the disciplines of philosophy, education and pscychology is needed. In such a comprehensive approach to the development of thinking skills the following factors that have a bearing on the acquisition of thinking skills should be addressed:The cultivation of a positive disposition towards the development of thinking.The creation of conditions conducive to the development of thinking.The cultivation of virtues that will dispose a person towards good thinking.An understanding of what good thinking entails.The teaching and assessment of thinking skills.In this article, these various factors and their bearing on the development of thinking skills are explored. A general theoretical framework for the development of thinking skills is proposed that can and should be translated to specific domains of knowledge or to specific human enterprises
Annexure to Scientific Review Report
Contained in the main Scientific Review report is a summary of the recommendations regarding the existing surface and groundwater monitoring sites for all the Water Management Areas (WMAs) following the nine Regional Network Design Workshops held in Nelspruit, Cape Town, Durban, King Williams Town, Bela-Bela and Bloemfontein from March to June 2016. During these workshops theoretical monitoring network considerations for each WMA were presented to various stakeholders, and the considerations were used to review the existing networks and obtain changes and improvements to the networks as recommendations. The main objectives of the workshops were to review the existing monitoring networks against the prioritized National Monitoring Objectives in terms of:
Existing sites meeting the identified objectives;
Redundancies in the existing monitoring network;
Gaps in the spatial coverage with regards to meeting important monitoring objectives;
Possible physical constraints associated with existing and potential new monitoring sites.
Reported in Annexures 1 to 9 of this document are the detailed outcomes, comments and prioritization of all existing and proposed monitoring sites per WMA. The WMAs are reported as per the second National Water Resources Strategy (DWS, 2013e)(see Figure A.1).The annexures are structured as follows:
Annexure 1: Limpopo WMA
Annexure 2: Olifants WMA
Annexure 3: Inkomati-Usuthu WMA
Annexure 4: Pongola-uMzimkulu WMA
Annexure 5: Vaal WMA
Annexure 6: Orange WMA
Annexure 7: Mzimvubu-Tsitsikamma WMA
Annexure 8: Breede-Gouritz WMA
Annexure 9: Berg-Olifants WM
Millennium development goals: A concern over sub-national variations
Millennium development goals (MDGs) were agreed upon by 192 countries in the year 2000 and are due to be achieved by 2015. This paper highlights that MDGs deal with national averages and their achievement may hide sub-national variation. Sub-national variation in the ability to achieve development goals should be expected because government spending would achieve such goals faster if it were targeted at areas where the required improvements are smaller, as is often the case in city-regions. Rural and dispersed populations may gain little from MDGs, at least in the short run. Data analysis of South African Magisterial Districts highlights this issue
The effect of paraquat on the aerobic metabolism of rabbit alveolar macrophages and lung fibroblasts
CITATION: Rossouw, D. J. & Engelbrecht, F. M. 1979. The effect of paraquat on the aerobic metabolism of rabbit alveolar macrophages and lung fibroblasts. South African Medical Journal, 55:20-23.The original publication is available at http://www.samj.org.zaIn this study the effects of paraquat on the aerobic metabolism and viability of isolated rabbit alveolar macrophages and lung fibroblasts were investigated, and compared with the effects of other known metabolic inhibitors, i.e. sodium fluoride (NaF) and potassium cyanide (KCN). The manometrically and polarographically determined endogenous oxygen consumption of lavaged alveolar macrophages compared very well (180,9 ± 35,8 and 169,3 ± 26,8 nmol per 106 viable cells per hour respectively). Exogenous glucose (10 mM) and autologous serum (1:3 v/v) added to the medium had no significant effect on the basal respiration rate. The mean cell protein content, determined by the micro-Kjeldahl and Lowry techniques, amounted to 242,6 ± 37,6 μg/106 macrophages. Paraquat (2 mM), like NaF (20 mM) and KCN (5 mM), decreased the viability of the macrophages far less than it did the oxygen utilization of the viable cells, and resulted in an 80% inhibitin of oxygen uptake. In contrast, paraquat (1 mM) induced a marked stimulation (230%) of the cyanide-insensitive respiration of alveolar macrophages. The concentrations of paraquat (nmol/103 cells) which reduce macrophage metabolism to almost zero were virtually non-toxic to fibroblasts, as measured by their oxygen consumption.Publisher’s versio
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