Browsing Faculty of Natural and Agricultural Sciences by Title
Now showing items 762-781 of 4818
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A comparison of the mathematical knowledge and skills of first-year student cohorts from a transmission and an outcomes-based curriculum
(Taylor & Francis, 2015)The traditional transmission-based school curriculum in South Africa has been replaced by an outcomes-based school curriculum since 1998. In this article we report on a comparative study on the mathematical knowledge and ... -
Comparison of the penetration, development and reproduction of Meloidogyne graminicola, and analysis of lignin and total phenolic content in partially resistant and resistant recombinant inbred lines of Oryza sativa
(Springer, 2019)The mechanism of resistance of selected recombinant Oryza sativa inbred lines (RILs) resistant and partially resistant to Meloidogyne graminicola, and their resistant (IR78877–208-B-1-2) and susceptible (IR64, Dinorado) ... -
Comparison of the penetration, development and reproduction of Meloidogyne javanica and M. graminicola on partially resistant Oryza sativa cultivars from East Africa
(Brill, 2020)The host response to Meloidogyne javanica infection of selected Oryza sativa and NERICA (New Rice for Africa) genotypes that are commonly grown in Tanzania and East Africa was examined. The O. sativa genotypes ‘Komboka’ ... -
A comparison of the traditional and simplified methods for water poverty index calculation
(Mediterranean Center of Social and Educational Research (MCSER), 2013)The aim of this research is to quantify the difference in the water poverty index when calculated with the traditional method, compared to the new and simplified water poverty indices. It is calculated and compared for the ... -
A comparison of turbulence-reduced drift coefficients of importance for the modulation of galactic cosmic-ray protons in the supersonic solar wind
(Elsevier, 2015)The study of the modulation of cosmic rays in the heliosphere relies heavily on a thorough understanding of the transport of these charged particles in the turbulent solar wind. Drift effects due to gradients and the ... -
A comparison of two extraction methods for differentiating and characterising various Mycobacterium species and Pseudomonas aeruginosa using GC-MS metabolomics
(Academic Journals, 2012)We investigated the capacity of a metabolomics research approach to characterise and differentiate between various infectious Mycobacterium species and Pseudomonas aeruginosa, and compared two extraction procedures; 1) ... -
Comparison of two reducing agents dithiothreitol and tris(3-hydroxypropyl)phosphine for in vitro kinetic assay of vitamin K epoxide reductase
(Elsevier, 2020)Vitamin K epoxide reductase (VKOR) is a target enzyme for anticoagulants, such as warfarin, that are used as medicines or rodenticides. Assessing VKOR activity is required to ensure the proper usage of these drugs. ... -
Comparison of wheat growth-response to endophytic Beauveria bassiana (hypocreales: Cordycipitaceae) derived from an insect versus plant host
(Southern Cross Publishing, 2019)Beauveria bassiana (Hypocreales) is a cosmopolitan entomopathogen, infecting >700 insect species. Although traditionally associated with insects, endophytic colonisation of plants is also known. Endophytism may protect ... -
Comparison of xenobiotic metabolism in phase I oxidation and phase II conjugation between rats and bird species
(Elsevier, 2018)There have been many reports regarding toxic chemicals in birds. Chemicals are mainly metabolized in the liver through phase I oxidation by cytochrome P450 (CYP) and phase II conjugation by conjugated enzymes, such as ... -
Complaints and findings by the Press Ombudsman on the ANC and ANC-led government: A case study
(Taylor & Francis, 2014)A growing crisis of confidence between the ANC and the ANC-led government and the press came to a head in 2010/11. The ANC suggested the creation of a statutory press tribunal and supported the Protection of Information ... -
Complementary description of Typhlodromus (Anthoseius) bagdasarjani Wainstein and Arutunjan (Acari: Mesostigmata: Phytoseiidae) based on specimens from western Iran
(Acarologia, 2017)This paper reports the morphological characteristics of immatures and adults of Typhlodromus (Anthoseius) bagdasarjani Wainstein & Arutunjan, 1967 (Phytoseiidae) collected from plum trees, Prunus domestica L. (Rosaceae) ... -
Complete genome analyses of the first porcine rotavirus group H identified from a South African pig does not provide evidence for recent interspecies transmission events
(Elsevier, 2016)Rotaviruses (RVs) are classified into eight species/groups (RVA–RVH) according to the migration patterns of their 11 genome segments, as well as by serological and molecular properties of Viral Protein 6 (VP6). In 1997 a ... -
Complete genome sequence of Lactobacillus reuteri PNW1, a promising probiotic candidate
(ASM, 2019)This study reports the whole-genome sequence of Lactobacillus reuteri PNW1 isolated from gastrointestinal tracts of weaned piglets of the indigenous South African Windsnyer pig breed. A total of 5.2 GB data comprising ... -
Complex refractive indices and single-scattering albedo of global dust aerosols in the shortwave spectrum and relationship to size and iron content
(EGU, 2019)The optical properties of airborne mineral dust depend on its mineralogy, size distribution, and shape, and they might vary between different source regions. To date, large differences in refractive index values found in ... -
Complex vector lattices via functional completions
(Elsevier, 2016)We show that the Fremlin tensor product View the MathML sourceC(X)⊗¯C(Y) is not square mean complete when X and Y are uncountable metrizable compact spaces. This motivates the definition of complexification of Archimedean ... -
The complex VHE and multiwavelength flaring activity of the FSRQ PKS 1510-089 in May 2015
(AIP, 2017)The blazar PKS 1510-089 was the first of the flat spectrum radio quasar type, which had been detected simultaneously by a ground based Cherenkov telescope (H.E.S.S.) and the LAT instrument on board the Fermi satellite. ... -
Complexation of palladium(II) with chloride and hydroxide
(Taylor & Francis, 2007)Complex formation of Pd(II) with chloride and hydroxide has been investigated by spectrophotometry at 25°C and ionic strength 1.0 M. For the chloride complexes [PdCl n (H2O)4− n ]2− n (n = 0–4), the formation constants, β ... -
Complexation of palladium(II) with thiocyanate: a spectrophotometric investigation
(Taylor & Francis, 2014)Complex-formation of Pd(II) with thiocyanate has been investigated by spectrophotometry at 25 °C and an ionic strength of 1.0 M. The formation constants, βn, for the palladium(II) thiocyanate complexes [Pd(SCN)n(H2O)4–n]2–n ...