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ETD imports: Recent submissions
Now showing items 41-60 of 176
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Applications of spontaneous hybridoma formation and characterization of a bacterial inducer entity (University of Pretoria, 1997)Spontaneous hybridoma formation was evaluated in this study. This phenomenon entails the treatment of mice with specific Haemophilus paragallinarum strains to induce the ability of murine splenocytes to fuse with tumour ...
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(University of Pretoria, 1965)In section A a short description is given of the minerals encountered in 129 polished section3 of conglomerate from the Dominion Reefs Mine. These include: (a) The radio-active ninerals: Thorian uraninite, thorite, monazite, ...
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(University of Pretoria, 1995)In 1991 five giraffe (Giraffa camelopardalis) were introduced to the Vaal Spa Nature Reserve three kilometres north of Christiana. A project was undertaken to monitor their adaptation in the new habitat and to assess the ...
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(University of Pretoria, 1991)The problem of estimating the parameters of an autoregressive moving average (ARMA) process based on a time series with missing observations, is considered. This paper describes a solution of the problem by using the state ...
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(University of Pretoria, 1984)Let Q be an open set in JRn; we assume Q to be bounded and to have an (n - 1) dimensional, infinitely differentiable boundary r such that Q is locally on one side of r. For each t E [0,T] we define the second order ...
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(University of Pretoria, 1997)This thesis considers problems in sex ratio theory, especially those posed by fig wasps. In structured populations with male dimorphisms for dispersal, optimal sex ratios depend on the frequencies of the morphs. Species ...
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(University of Pretoria, 1995)In this research the need for a statistically standardised instrument for the identification and interpretation of cognitive learning and motivation strategies in the natural sciences is investigated. Specific reference ...
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(University of Pretoria, 1984)Several workers have indicated the importance of lactic acid bacteria in the spoilage of vacuumpacked meatproducts. Research on the systematics of these lactic acid bacteria in the past have been sporadic and uncoordinated, ...
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(University of Pretoria, 1981)In the first two chapters, a thorough background for boundary value and variational problems, refering to the origin of certain mathematical models, can be found. Excerpts from the literature are included. There are some ...
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(University of Pretoria, 1956)
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(University of Pretoria, 1992)The effect of the diethoxy phosphoryl group on an adjacent carbon-carbon double bond was determined for various unsaturated systems and found to be very similar to that of the hydrogen atom. The number of carbon atoms ...
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(University of Pretoria, 1936)No abstract
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(University of Pretoria, 1993)The potential of supported liquid membranes (SLMs) is evaluated for automation of sample manipulation techniques in analytical chemistry. SLMs maximise the contact between immiscible phases by allowing the immobilisation ...
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(University of Pretoria, 1986)Sandstone of the Natal Group occurs in the form of a narrow strip along the south-eastern coast of South Africa. The maximum east-west width is approximately 70 kilometres and the length from north to south approximately ...
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(University of Pretoria, 1964)Resonansieverstrooiing deur die eerste opgewekte toestande van 1 39La, 20 3Tl en 198Hg is met behulp van dietermiese metode bestudeer. In die eerste hoofstuk van hierdie proefskrif is die teorie vir elektromagnetiese ...
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(University of Pretoria, 1966)The time-domain electromagnetic response from multiple conductors in a resistive environment is studied by using wire loops in free space to model conductive sheets. This approach provides a relatively simple way of ...
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(University of Pretoria, 1986)An original experiment was performed to measure the angular correlation of fission neutrons from thermal-neutron-induced fission of 235 u, with respect to the light fission fragment direction, as a function of fragment ...
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(University of Pretoria, 1970)The structural and petrochemical relationships of the post-Waterberg alkaline intrusions north-east of Pretoria were investigated. It was found that apart from being contemporaneous these intrusions were influenced by the ...
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(University of Pretoria, 1985)A cytogenetic survey was carried out on a number of Southern African short horned grasshopper species (OR.TBOPTKR.A), the aim being to expand the existing limited information. New methods of analysis were developed, while ...
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(University of Pretoria, 1945)
Now showing items 41-60 of 176