University of Port Elizabeth

About: University of Port Elizabeth is a based out in . It is known for research contribution in the topics: Population & Estuary. The organization has 1067 authors who have published 1538 publications receiving 38560 citations. The organization is also known as: UPE & Universiteit van Port Elizabeth.

Teaching philosophy, popular culture, and student experience

Abstract: In this article I focus on novel approaches open to teachers of philosophy (and, more generally, of the human sciences) who face the task of engaging students' interest in philosophy in the context of an overwhelmingly ‘audiovisual’ culture. Is it true that, as some cultural pessimists have argued, the prospects of a literary/philosophical education are bleak beyond redemption? Or are there alternative ways of giving students access to important philosophical issues, utilizing the very cultural products that they value? The argument put forward is that it is possible to use the artifacts and practices of popular culture (in the form of rock music and film, for instance) to raise such issues, and ultimately to interest students in written texts as well. In a nutshell: the teaching of philosophy is surprisingly successful if teachers engage students on home ground with a view to identifying and elaborating on important philosophical questions.

The demography, diet and reproductive success of african black oystercatchers on a sandy beach

Abstract: Summary Ward, D. 1990. The demography, diet and reproductive success of African Black Oystercatchers on a sandy beach. Ostrich 61:125-133. The biology of African Black Oystercatchers Haematopus moquini on a sandy beach is described and compared with earlier studies of this species on mixed and rocky shores. Adult oystercatchers specialized on the wedge clam Donax serra. There was no difference in the size of clams taken by adult and immature oystercatchers, although chicks were fed smaller clams. The abundance of oystercatchers and the biomass of Donax serra was positively correlated. There was no significant relationship between clutch size, egg volume or clutch volume and prey biomass.

Dimethylammonium dimethyldithiocarbamate-accelerated sulfur vulcanization. I. Thermal stability and reactions with curatives

Abstract: To investigate its thermal stability and reactivity towards other accelerators dimethylammonium dimethyldithiocarbamate ((dma)dmtc) was heated at programmed heating rates in sealed and open pans in a differential scanning calorimeter and on a thermobalance. (Dma)dmtc was heated on its own, in rubber compounds and in mixes with tetramethylthiuram disulfide, zinc dimethyldithiocarbamate, and ZnO. In open systems (dma)dmtc readily sublimes at temperatures well below its melting point, and it is almost as rapidly lost when compounded on its own with rubber. No decomposition is observed at vulcanization temperatures and (dma)dmtc is unreactive towards tetramethylthiuram disulfide and zinc dimethyldithiocarbamate. Moisture does not promote its decomposition. Reaction with ZnO to give zinc dimethyldithiocarbamate is restricted to the surface of ZnO particles. (Dma)dmtc is soluble in water in which it dissociates. It must be concluded that when its is included in formulations, (dma)dmtc, per se, would act as a vulcanization accelerator; it does not decompose to dimethyldithiocarbamic acid and dimethylamine, both of which are known accelerators. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 82: 3067–3073, 2001

An investigation into compound analgesic prescribing in South Africa, with special emphasis on meprobamate‐containing analgesics

Abstract: The primary aim of the study was to analyse the prescribing patterns of compound or combination analgesics in four metropolitan areas in South Africa. Prescription data from 50 medical practices in each area were obtained from a medical aid scheme, and were retrospectively analysed for 1995. One-third (33.1%) of all prescriptions for central nervous system (CNS) drugs was for compound analgesics. Compound analgesics represented 81.2% of the total number, and 72.1% of the total cost, of all non-opioid analgesic prescriptions. Children younger than 10 years received 30.2% of all compound analgesics. The most frequently prescribed combination product was an analgesic capsule consisting of paracetamol, codeine phosphate, caffeine and meprobamate. Nearly half of all the meprobamate-containing analgesics prescribed, contained exactly the same dosages of active ingredients. Meprobamate-containing analgesics represented 29.6% of the total number of analgesic prescriptions. Most patients using meprobamate-containing analgesics (48.4%) were females between the ages of 30 and 59 years. Further studies on compound analgesic prescribing should be undertaken, especially in relation to the diagnoses for which they are prescribed, as well as to other medication taken concurrently with analgesic products.

The isolation and partial characterization of alanine aminopeptidase from ostrich (Struthio camelus) duodenal mucosa

Abstract: 1. 1. Ostrich aminopeptidase was purified by salt fractionation, Sephadex G-200 and DEAE-Toyopcarl 650M chromatography of a pH 6.9 duodenal extract. 2. 2. The final preparation was homogeneous when subjected to gradient gel electrophoresis with a M r of 290,000. 3. 3. The effects of pH, temperature and metal ions on aminopeptidase activity were examined. 4. 4. Kinetic parameters ( K m , k cat and k cat / K m ) for two substrates (APNA and LPNA) were determined.