Institutional Repository | North-West University | NWU
→
Research Output
→
Faculty of Natural Sciences@PUK
→
Browsing Faculty of Natural Sciences@PUK by Title

Browsing Faculty of Natural Sciences@PUK by Title

Now showing items 493-512 of 543

Taxonomy, biology, biogeography, evolution and conservation of the genus Erikssonia Trimen (Lepidoptera: Lycaenidae)

Terblanche, Reinier Francois (The Entomological Society of Southern Africa, 2010)
The tetranychid mites (Acari: Tetranychidae) of Kenya and a redescription of the species Peltanobia erasmusi Meyer (Acari: Tetranychidae) based on males

Ueckermann, Edward Albert; Toroitich, Faith Jebet; Theron, Pieter; Knapp, Marckus (Magnolia Press, 2009)

This paper reports 18 tetranychid mite species (Acari: Tetranychidae) from various plant hosts in Kenya. Four species of these belong to the subfamily Bryobiinae and the other 14 belong to the subfamily Tetranychinae. Eight ...
Theoretical and practical aspects of Cr(VI) in the South Africa ferrochrome industry

Beukes, Johan Paul; Dawson, N F; Van Zyl, Pieter Gideon (South African Institute of Mining and Metallurgy, 2010)
Theory and design of low-noise multipath amplifiers

Visser, Barend; Krüger, Petrus Paulus; De Jager, Ockert Cornelis Ocker Cornelis (IEEE, 2011)

The theoretical minimum noise measure of a multipath amplifier (an amplifier that has multiple parallel amplifiers) is achieved by using the optimum source impedance and optimum gain for each amplification path. This optimum ...
Thermal properties of sodium-exchanged palabora vermiculite

Atanasova, Maria; Focke, Walter; Muiambo, Herminio; Tiedt, Louwrens Rasmus; Van der Westhuizen, Isbe (Elsevier, 2010)
Thermal reduction of barium sulphate with carbon monoxide - A thermogravimetric study

Bruinsma, Odolphus Simon Leo; Hlabela, Simon Patrick; Neomagus, Hendrik Willem Johannes P; Waanders, Frans Boudewijn (Elsevier, 2010)
Thermodynamic modelling of a cooling C-O-H fluid-graphite system: implications for hydrothermal graphite precipitation

Huizenga, Jan Marten (Springer, 2011)

Carbon-saturated crustal fluids in the C–O–H system comprise H2O, CO2 and CH4 as the most important fluid species. Graphite precipitation from a cooling C–O–H is discussed for two different systems, namely for a fluid–rock ...
Threats and opportunities for post-closure development in dolomitic gold-mining areas of the West Rand and Far West Rand (South Africa) a hydraulic view Part 2: Opportunities

Stoch, Eliezer Joshua; Winde, Frank (Water Researchh Commission, 2010)
Threats and opportunities for post-closure development in dolomitic gold mining areas of the West Rand and Far West Rand (South Africa) a hydraulic view Part 1: Mining legacy and future threats

Stoch, Eliezer Joshua; Winde, Frank (Water Researchh Commission, 2010)
Threats and opportunities for post-closure development in dolomitic gold mining areas of the west rand and far West Rand (South Africa) a hydraulic view. Part 3: Planning and uncertainty lessons from history

Stoch, Eliezer Joshua; Winde, Frank (Water Researchh Commission, 2010)
Threats to Ronga custodianship of a Sacred grove in Southern Mozambique

Siebert, Stefan J; Izidine, Samira A; Zobolo, Alpheus M (Indilinga : African Journal of Indigenous Knowledge Systems., 2008)
Three-dimensional visualisation of developmental stages of an apicomplexan fish blood parasite in its invertebrate host

Smit, Nicholas Jacobus; Hayes, Polly M.; Wertheim, David F.; Seddon, Alan M.; Davies, Angela J. (BioMed Central, 2011)

Background Although widely used in medicine, the application of three-dimensional (3D) imaging to parasitology appears limited to date. In this study, developmental stages of a marine fish haemogregarine, Haemogregarina ...
Three methods to apply the bootstrap correctly to hypothesis testing

Allison, James Samuel; Swanepoel, Jan Willem Hendrik (South African Statistical Association, 2010)
Time-dependent cosmic ray modulation

Engelbrecht, Nicholas Eugene; Ferreira, Stephanus Esaias Salomon; Potgieter, Marthinus Steenkamp; Strauss, Roelf Du Toit; Manuel, Rex (Elsevier, 2011)
The time structure of ground level enhancements in Solar Cycle 23

Moraal, Harm; McCracken, K.G. (Springer, 2011)

In a recent paper McCracken et al. (J. Geophys. Res. 113:A12101, 2008) proposed that the Ground Level Enhancement (GLE) of 20 January 2005 may have been produced by more than one acceleration mechanism, with the first ...
Tiragatso ya itlhagiso ya aetlhare se se okeditsweng ka kgetsi mo bothateng jwa popo ya metato ya dipeipi tsa oli

Hattingh, Johannes Michiel; Kruger, Hendrik Abraham; Baitshenyetsi, Lyell Tumo (University of Stellenbosch, 2011)

Go na le mathata a mantsi a ditshwetso tsa tiriso tse di welang mo mathateng a a mo setlhopheng sa kelelo ya kgokagano le palo e kgolo ya dikai tsa tiragatso tse di ka bonwang mo dikgaolong jaaka tsa neeletsanyokgakala, ...
Towards sustainable land management in the drylands: scientific connections in monitoring and assessing dryland degradation, climate change and biodiversity

Kellner, Klaus; Cowie, A.L.; Penman, T.D.; Gorissen, L.; Winslow, M.D. (Wiley, 2011)

The United Nations Convention to Combat Desertification and its sister conventions, the United Nations Framework Convention on Climate Change and the Convention on Biological Diversity, all aim to halt or mitigate the ...
Transformation Kernel density estimation with applications

Koekemoer, Gerhard; Swanepoel, Jan (American Statistical Association, 2008)
Trichloroacetic acid of different origin in Norway spruce needles and chloroplasts

Forczek,S T; Schröder, P; Weissflog, L; Kruger, Gert; Rohlenová, J; Matucha, M (Springer Netherlands, 2008)
Triglyceride concentration and waist circumference influence alcohol-related plasminogen activator inhibitor-1 activity increase in black South Africans

De Lange, Zelda; Ellis, Susanna Maria; Hoekstra, Tryntje; Kruger, Annamarie; Pieters, Marlien (Lippincott Williams & Wilkins, 2010)