• Characterisation Of Environmental Pollution By Gc-Ms Analysis Of Polycyclic Aroma Tic Compounds In Water And Soil 

  Havenga, Willem Jacobus (University of Pretoria, 2000)

  Polycyclic aromatic hydrocarbons (PAHs) have long been known to pose health risks in humans and. have become one of the major environmental issues. Coal tar products, refined petroleum products and lubricating oils are ...
• A Molecular biological characterisation of Microcystis Aeruginosa Kutz. Emend Elenkin 

  Hauman, John hodgson (University of Pretoria, 1981)

  Microcystis aeruginosa Kutz. emend Elenkin is a cyanobacterial species which is sometimes found to be toxic. The most common toxin is a hepatotoxin but other toxins are also produced. The purpose of this study was to study ...
• A structural and spectroscopic investigation of some tin- and titania-based pigments 

  Harden, Peter Michael (University of Pretoria, 1995)

  Two types of pigments suitable for colouring ceramic materials were investigated structurally and spectroscopically. The two types of pigments investigated were firstly yttrium/tin (Y 2Sn20 7) and yttrium/titanium (Y2Ti2O7) ...
• Membrane separations with dialysis in flow systems 

  Hattingh, Cornelius Johannes (University of Pretoria, 1994)

  A brief introduction concerning the history of flow systems and membrane separations is given. A theoretical background on flow-injection analysis is given. The theory and operation of an on-line dialysis system is discussed. ...
• Die graniet van Steelpoort Park (Oos-Transvaal), 'n intrusie transgressief oor die gelaagdheid van die Bosveldstollingskompleks 

  Hammerbeck, Erik Carl Ivar (University of Pretoria, 1965)

  Met die doel om die aard en die oorsprong van die Steelpoort Parkgraniet vas te stel is 'n gebied van 100 vierkante myl in Oos-Transvaal gekarteer. Die informasie so ver-: kry word op 'n kaart aangebied. Die graniet van ...
• The Solid-State Chemistry of Some Titania-And Tin Pigments 

  Harden, Peter Michael (University of Pretoria, 1998)

  Natural inorganic pigments have been known since prehistoric times. Initially they were obtained from natural sources, but later synthetic pigments were produced empirically. The modern ceramic pigment industry began early ...
• The influence of depositional environment and other dolerite intrusions on the quality of coal : a study of the Twistdraai mine area near Secunda, Southeastern Transvaal 

  Hagelskamp, Harald Hermann Bernd (University of Pretoria, 1987)

  The objective of the present study is to establish the influence of syngenetic (sedimentary environment) and of epigenetic (dolerite intrusions) factors on the quality of coal. The effect of dolerite intrusions is investigated ...
• Studies on herbaceous layer production in Burkea africana savanna 

  Grossman, David (University of Pretoria, 1981)

  The effects of fire, woody vegetation and defoliation on components of the herbaceous layer in an area of Burkea africana savanna were studied for one year. Biomass (live material) was significantly greater, over the year, ...
• The geology of the area north-west of the confluence of the Crocodile and Pienaars rivers 

  Groenewald, Dirk (University of Pretoria, 1948)

  The area investigated is situated in the district of Rustenburg, about 55 miles due north of the town of Rustenburg. The area of approximately 150 square miles was mapped by plane table during the winter seasons of 1946 ...
• The bio-ecology and mass-rearing of Chrysopidae, with special reference to Chrysopa zastrowi (Esb.-Pet.) 

  Barnes, Brian Nigel (University of Pretoria, 1973)

  Large numbers of green lacewings have been observed on cotton in South Africa. These insects are important predators of aphids and other soft-bodied insects, mites, and their eggs. It is therefore likely that they could ...
• Characterisation of uterine progresterone and oestrogen receptors in the African elephant, Loxodonta africana 

  Greyling, Michelle Deborah (University of Pretoria, 1997)

  The present study is directed at obtaining information on the interaction between uterine steroid receptors and circulating steroids. Furthermore the study aimed at quantifying the affinity of these receptors for possible ...
• A Histological survey of the sudoriferous glands in indigenous rodent families 

  Green, Edward David (University of Pretoria, 1988)
• Physiology of and the influence of selected stress factors on the growth and survival of thermophilic Bacillus species associated with vacuum packed meat products 

  Gouws, Pieter Andries (University of Pretoria, 1989)

  From all the 16 isolates obtained from different types of sausages and spices only 7 showed typical characteristics of thermophilic Bacillus species. The results showed that the thermophilic bacteria frequently occurred ...
• Variables influencing cryptocurrency adoption : an early majority user perspective 

  Greeff, Nelius (University of Pretoria, 2021)

  As consumers demand faster, more flexible, convenient and efficient financial transitions, cryptocurrencies have emerged as a possible solution. South Africa is one of the top adopters of cryptocurrency and has moved into ...
• Operational quantities in C* algebras 

  Gopalraj, Perumal (University of Pretoria, 1998)

  In this thesis we study operational quantities characteristic of semi-Fredholm elements relative to a norm-closed ideal in a von Neumann algebra. In recent years, there have been various attempts at generalising various ...
• The effect of seasonal food restriction on the metabolism and circadian activity of the South African hedgehog Erinaceus frontalis (: Insectivora) 

  Gillies, Alexandra C. (University of Pretoria, 1989)
• Mycolic acid antigens in tuberculosis 

  Goodrum, Michelle Anna (University of Pretoria, 1998)
• Biochemical Investigations into Anticoagulants In Salivary Glands Of The Tick Ornithodoros Sa Vignyi Audouin (1827) 

  Gaspar, Anabella Regina Marques (University of Pretoria, 1995)
• The relationship between social capital and SME business performance -assessing resources as a moderating variable 

  Gama, Charmaine Unathi (University of Pretoria, 2021)

  The purpose of this research was to assess the effect of resources gained through networking on the relationship between social capital and small business performance. The research further investigated the various forms ...
• The Mineral Matter in Some South African Coals 

  Gaigher, Jan Louis (University of Pretoria, 1980)

  The occurrence and distribution of mineral matter in 35 coal products samples was determined by means of radio-frequency ashing and X-ray diffraction. The association of illite with high rank coals in contrast with that ...

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