• Multifactorial optimization enables the identification of a greener method to produce (+)-nootkatone 

  Makhubela, Ida M.; Zawaira, Alexander; Brady, Dean; Pienaar, Daniel P. (Elsevier, 2024-09)

  The natural aroma compound (+)-nootkatone was obtained in selective conversions of up to 74 mol% from inexpensive (+)-valencene substrate by using a comparatively greener biocatalytic process developed based on modifications ...
• 'n Nuwe stratigrafiese indeling van die Ventersdorp-sisteem 

  Matthysen, Johannes Louis (University of Pretoria, 1953)
• Mitochondrial DNA variability and geographic population structure in Pronolagus rupestris and P. randensis (Mammalia: Lagomorpha) 

  Matthee, Conrad Adolf (University of Pretoria, 1993)

  Phylogeographic mitochondrial DNA (mtDNA) population structure was determined for Pronolagus rupestris and P. randensis, two species of red rock rabbit occurring in South Africa. The study revealed that P. randensis mtDNA ...
• An investigation of the pyroxenite marker and the associated rocks in the main zone of the eastern bushveld complex 

  Marais, Constance Lougene (University of Pretoria, 1977)

  Optical investigation of the orthopyroxenes also revealed a compositional break in the differentiation sequence at the height of the Pyroxenite Marker. A reversal in the trend of iron enrichment is recorded at all four of ...
• Isolation and structure of the metabolites from diplodia maydis 

  Marais, Stephanus Francois (University of Pretoria, 1990)

  Investigation of toxic extracts from cultures of the fungus Diplodia maydis (Berk.) Sacc. [ synonyms D. zeae (Schw.) Lev. and Stenocarpella maydis (Berk.)] led to the isolation of diplodiatoxin, a known metabolite, as well ...
• The geology of the Bushveld complex on the Sekhukhune Plateau, Eastern Transvaal 

  Marlow Alan Gerald (University of Pretoria, 1976)

  This study comprises a general geological investigation of the rocks from an area 1 200 square km in size, situated about 50 km'north-east of Marble Hall. The area lies upon the Sekhukhune Plateau and is dominated by acid ...
• Inductively-coupled plasma optical emission spectroscopic determination of trace impurities in zirconium oxide-powder 

  Mandiwana, Khakhathi Leonard (University of Pretoria, 1996)

  Because of their extraordinary properties, advanced ceramic materials, e.g. ZrO2 , offer new possibilities to science and technology in such important areas as microelectronics, high temperature applications in reactors ...
• Die reaksie tussen plasma gedissosieerde sirkoon en hidrofluoorsuur 

  Lubbe, Solomon Johannes (University of Pretoria, 1993)

  Zircon is dissociated in a direct arc plasma to a chemically reactive form called Plasma Dissociated Zircon, which is dissolved in HF. Distillation of the mother liquor is controlled on the basis of the prevention of the ...
• Application of the enzyme-linked immunosorbent assay in the quality control of legume inoculants 

  Lochner, Hester Helena (University of Pretoria, 1986)

  Samples of each batch of legume inoculant manufactured in South-Africa, are tested by the Plant Protection Research Institute for the number of viable Rhizobium and Bradyrhizobium cells per gram peat, strain identity and ...
• Fluorinated ferroelectric liquid crystals : synthesis, properties and fluorine-19 nmr 

  Loubser, Christa (University of Pretoria, 1993)

  A series of new laterally fluorinated liquid crystals containing a single chiral centre on the terminal chain, was synthesised. All the compounds, with a single exception, exhibit a ferroelectric smectic C* phase. Their ...
• The sulphides in the layered sequence of the Bushveld igneous complex 

  Liebenberg, Leon (University of Pretoria, 1968)

  The Bushveld Complex, which is the largest mafic and ultramafic complex of its kind in the world does not contain copper and nickeliferous ores, with the exception of the Merensky Reef and the sulphide pegmatoids of the ...
• A taxonomic revision of Lachnaea L. (Thymelaeaceae) 

  Beyers, Josephine Bertha Pauline (University of Pretoria, 2000)

  Lachnaea L., a genus endemic to the Cape Floristic Region, occurs almost exclusively in fynbos vegetation. In this revision a brief taxonomic history of Lachnaea is presented. Palynology and chromosome numbers were found ...
• Die invloed van gesimuleerde beweiding op die produksie van enkele efemeerplantspesies van Namakwaland 

  Kruger, Margaretha (University of Pretoria, 1997)

  The effect of various simulated grazing and water stress treatments were studied in three winter ephemeral species, namely Dimorphotheca sinuata, Grielum humifusum and Osteospermum hyoseroides by means of pot trials. The ...
• Die Eienskappe en korrelasie van steenkoollae in die Witbank - Bethal - Breyten-gebied 

  Le Roux, Jacob Philippus (University of Pretoria, 1985)

  It has long been noticed that there appears to be stratigraphic equivalents for the major coal seams in the Witbank, Highveld and Eastern Transvaal coal fields. In order to correlate these seams, readily available coal ...
• 'n Idiografiese beeld van standerdsesleerlinge met wiskunde-angs : 'n ortopedagogiese perspektief 

  Kruger, Jerome (University of Pretoria, 1992)

  Mathematics anxiety is a well-known phenomenon causing concern in both schools and the work place. The aim of this study is to investigate the occurrence of mathematics anxiety in standard 6 pupils. The research comprises ...
• Die Rand van die bosveldstollingskompleks, suid van Burgersfort, insluitende sekere perikotiet-liggame en die gemetamorfoseerde serie Pretoria 

  Liebenberg, Leon (University of Pretoria, 1964)

  Die horingfels en die kwartsiet van die boonste gedeelte van die Etage Magaliesberg suid van Burgersfort in Oos- Transvaal het baie aandag geniet in hierdie ondersoek. Die gesteentes was veral aan kontakmetamorfose onderworpe ...
• Structural analysis of fractures around underground excavations on a Witwatersrand gold-mine 

  Kersten, Rudiger Welf Olgert (University of Pretoria, 1969)

  The interpretation of faults and joints on the bas is of stresses in the earth I s crust has been attempted on many occasions. The main problem encountered in such interpretations has been that the physical conditions, and ...
• Population biology of humpback dolphins in Richards bay, South Africa 

  Keith, Mark (University of Pretoria, 1999)

  During the last 19 years a minimum of 72 humpback dolphins Sousa chinensis were retrieved from the Richards Bay shark nets. Recently developed acoustic warning devices led to the introduction of these devices (pingers) ...
• The metamorphosed sediments of the Pretoria group and the associated rocks northwest of Zeerust, Western Transvaal 

  Klop, Andre Alexander Cornelis (University of Pretoria, 1978)

  Part of the Transvaal Supergroup, viz. the upper formations of the Chuniespoort Group and the Pretoria Group between Zeerust and the border with Botswana, was mapped. The metamorphic aureole of the Bushveld Complex as ...
• Application of inductively coupled plasma emission spectrometry in the analysis of environmental samples 

  Kempster, Phillip Lyle (University of Pretoria, 1986)

  A discussion of the theory of inductively coupled plasma (ICP) emission spectrometry, with particular attention being paid to the question of detection limit, leads on to an overview of the analytical application of the ...

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