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ETD imports: Recent submissions
Now showing items 81-100 of 176
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(University of Pretoria, 1994)The goal of finding some universal language and method for stating and solving arbitrary scientific problems has been an ideal since Leibniz who envisioned a "characteristica universalis": a universal language in which any ...
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(University of Pretoria, 1980)A comparison between aeromagnetic and geological data is made in the area bounded by latitude 25°30'S and 26°15'S and longitudes 25°45'E and 26°45'E. Aeromagnetic and ground magnetic data are used to map the dykes, and ...
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(University of Pretoria, 1982)Algmonsters is oor die hele Transvaal versamel. In 433 van die ongeveer 500 ondersoekte algmonsters is verteen= woord~gers van die Euglenophyceae en/of Chlorophyceae ge= vind. Hierdie 433 algmonsters is by 152 lokaliteit~ ...
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(University of Pretoria, 1991)Recently the gold mining industry has been forced to treat leaner and more refractory gold ores. Pre-treatment by bacterial oxidation is one of the most promising alternative methods of recovering refractory gold. The ...
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(University of Pretoria, 1988)Social odours have a major influence on the organization of mammalian societies but our umderstarding of their chemistry has been hampered by shortcomings in analytical techniques which have been borrowed from other fields ...
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(University of Pretoria, 1961)Unweathered specimens of rocks or the Lower Griquatown Stage, as well as of the associated amphibole asbestos, have only become available for investigation during the course of the past ten years. Detailed microscopic, ...
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(University of Pretoria, 1980)The removal of phosphorus from sewage works effluents is considered desirable in order to limit the eutrophication of lakes and impoundments. It has been observed that activated sludge systems are capable of producing ...
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(University of Pretoria, 1990)n Metode is uiteengesit vir die beskrywing en vergelyking van die vorms van plat figure tot in die fynste besonderhede, en daar is gerapporteer oor die suksesvolle toepassing daarvan op die vrug- en blaarprofiele van 'n ...
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(University of Pretoria, 1979)This study is an evaluation of the relationships between the stones-incurrent fauna of a river system and variations in water quality influencing it. The value of the biota in indicating short term and subtle changes in ...
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(University of Pretoria, 1988)The National Radioactive Waste Disposal Facility at Vaalputs in Bushmanland was selected for the disposal of intermediate- to low-level radioactive waste. The selection followed intensive investigations involving a wide ...
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(University of Pretoria, 1991)The sandstone-hosted uranium deposits of the southern Karoo basin in the Republic of South Africa were investigated as a possible source of molybdenum. A summary of global resources, production, co-products (Re and Se) and ...
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(University of Pretoria, 1992)Microbiological induced corrosion (MIC) can result in damage and economic losses in various industries. Although the importance of sulphate-reducing bacteria (SRB) in MIC has been widely recognized for many years, there ...
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(University of Pretoria, 1984)Staphylococcus aureus is considered as one of the most important food-borne, halotolerant pathogenic bacteria. An investigation was thus performed to determine parameters that could limit its growth in "Shelf Stable Meat ...
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(University of Pretoria, 1998)This study involves the synthesis and characterization of new organometallic complexes of Ti(IV). Such complexes are designed to act as possible antitumour agents and thus include ligands with specific functions. As target ...
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(University of Pretoria, 1988)The distribution of macroscopic corticolous lichen species against northern and southern fronts of the trunks of Jacaranda mimosifolia was determined by means of transects. The vertical distribution of lichens against ...
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(University of Pretoria, 1996)Preliminary research conducted in our laboratory indicated that the degradation behavior of phosphoramidates such as, eg. dimethyl N, N-bis(2-chloroethyl)phosphoramidate is complex. In principle, the substrates can react ...
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(University of Pretoria, 1988)The distribution of macroscopic corticolous lichen species against northern and southern fronts of the trunks of Jacaranda mimosifolia was determined by means of transects. The vertical distribution of lichens against ...
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(University of Pretoria, 1995)Molecular and morphological characters were used to clarify phylogenetic relationships within Pronolagus and, in particular, within P. rupestris. All taxa are characterized by an invariant karyotype while molecular sequence ...
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(University of Pretoria, 1993)The reproductive patterns of the male and female Angolan free-tailed bat, T. condylura, were investigated at two localities in the Eastern Transvaal. Reproductive tracts were examined histologically. Female T. condylura ...
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(University of Pretoria, 1990)The recovery plant of the department of conversion and pelletisation of the AEC recovers uranium from different types of scrap. If an accident should occur in the conversion plant, for example if the filters do not shut ...
Now showing items 81-100 of 176