Browsing Faculty of Natural and Agricultural Sciences by Title
Now showing items 635-654 of 4825
-
Chlorinated, brominated, and fluorinated organic pollutants in Nile crocodile eggs from the Kruger National Park, South Africa
(Elsevier, 2014)Repeated annual episodes of Nile crocodile deaths in two isolated areas of the Kruger National Park prompted the investigation of possible organohalogen pollutant involvement. Crocodile eggs were collected close to one of ... -
Chlorophyll a fluorescence as an indicator of heat stress in cotton (Gossypium hirsutum L.)
(Taylor & Francis, 2020)Cotton (Gossypium hirsutum L.) is a major fibre crop that is greatly affected by climatic factors, especially drought and high temperatures. Excessive temperature (above 30 °C) during the reproductive stage (flowering) ... -
Chlorophyllafluorescence as an indicator of heat stress in cotton (Gossypium hirsutumL.)
(Taylor & Francis, 2020)Cotton (Gossypium hirsutum L.) is a major fibre crop that is greatly affected by climatic factors, especially drought and high temperatures. Excessive temperature (above 30 °C) during the reproductive stage (flowering) ... -
Choosing between agricultural development projects in the North-West Province of South Africa: a multiple criteria analysis
(Academic journals, 2012)In the light of past development failures, coupled with the pressure on government to deliver on their promises made towards agricultural development, a need was developed for a framework to assist government in choosing ... -
Chronic defensiveness and neuroendocrine dysfunction reflect a novel cardiac troponin T cut point: the SABPA study
(Elsevier, 2017)Background Sympatho-adrenal responses are activated as an innate defense coping (DefS) mechanism during emotional stress. Whether these sympatho-adrenal responses drive cardiac troponin T (cTnT) increases are unknown. ... -
Chronic disease list conditions in patients with rheumatoid arthritis in the private healthcare sector of South Africa
(Springer, 2018)Introduction Little is known about the burden of rheumatoid arthritis (RA) in South Africa. The aim of this study was to establish the prevalence of RA and coexisting chronic disease list (CDL) conditions in the private ... -
Chytrid fungi and global amphibian declines
(Springer Nature, 2020)Discovering that chytrid fungi cause chytridiomycosis in amphibians represented a paradigm shift in our understanding of how emerging infectious diseases contribute to global patterns of biodiversity loss. In this Review ... -
Chytrid pathogen (Batrachochytrium dendrobatidis) in African amphibians: a continental analysis of occurrences and modeling of its potential distribution
(Herpetologists' League, 2020)The fungal pathogen Batrachochytrium dendrobatidis (Bd) is implicated in global declines of amphibian populations and has been documented in African specimens originally collected as far back as the 1930s. Numerous recent ... -
Cibulka correlation for ternary excess/deviation properties of C2mim EtSO4 (x1) + acetic or propionic acid (x2) + acetonitrile (x3) systems at different temperatures
(Elsevier, 2017)In this perspective, the main intention is to reveal the possible intra and inter molecular interactions between ternary ionic liquid systems. The excess molar volume (VE123), isentropic compressibility (ks) and deviation ... -
Circulating DNA: its origin and fluctuation
(Wiley, 2008)Circulating DNA is present in the blood of all individuals, but it has been found that cancer patients and patients with a variety of other conditions have increased amounts of these circulating DNA fragments in their ... -
Cirolana bambang, a distinctive new species of Cirolana Leach, 1818 (Crustacea: Isopoda: Cirolanidae) from Bitung, Indonesia
(Magnolia Press, 2018)Cirolana bambang sp. nov. from Bitung, North Sulawesi, Indonesia is described. The species can be recognised by generally smooth body with small, acute, submedian nodules on pleonites 4–5 and the anterior dorsal surface ... -
Cirolana phuketensis, a new species of marine isopod (Crustacea, Isopoda, Cirolanidae) from the Andaman Sea coast of Thailand
(Pensoft, 2017)Cirolana phuketensis sp. n. was collected from coral rubble from the Andaman sea coast of Thailand. C. phuketensis sp. n. is described and fully illustrated; C. phuketensis sp. n. can be recognized by the presence of ... -
Class II 6.7 GHz methanol maser association with young massive cores revealed by ALMA
(IOP, 2017)We explored the implication of the association (or lack of it) of 6.7 GHz class II methanol (CH3OH) masers with massive dense cores (MDCs) detected (within a sample of ATLASGAL selected infrared quiet massive clumps) at ... -
A class of goodness-of-fit tests based on a new characterization of the exponential distribution
(Taylor & Francis, 2008)A new characterisation of the exponential distribution in the class of new better than used in expectation (NBUE) life distributions is presented. Utilising this characterisation, a new class of goodness-of-fit tests for ... -
A class of goodness-of-fit tests for circular distributions based on trigonometric moments
(IDESCAT, 2019)We propose a class of goodness–of–fit test procedures for arbitrary parametric families of circular distributions with unknown parameters. The tests make use of the specific form of the characteristic function of the ... -
Class ranking of secondary schools in the North West province of South Africa
(ORSSA, 2016)The education system in South Africa finds itself in a dismal position. Existing research reports and general news bulletins suggest that schools in South Africa suffer from a general lack of efficiency measures and therefore ... -
Classes of sequentially limited operators
(Cambridge Univ Press, 2016)The purpose of this paper is to present a brief discussion of both the normed space of operator p-summable sequences in a Banach space and the normed space of sequentially p-limited operators. The focus is on proving that ... -
Classical and fractional analysis of the effects of silicosis in a mining community
(Elsevier, 2020)A mathematical model for the transmission dynamics of silicosis in a mining environment is designed and its qualitative analysis is given. The model takes into account the severity of silica dust exposure in a mining ... -
Classical model of Prandtl's boundary layer theory for radial viscous flow: application of (G'/G)- expansion method
(Eudoxus Press, 2017)In this paper, the exact closed-form solutions of the Prandtl's boundary layer equation for radial ow models with uniform or vanishing mainstream velocity are derived by using the (G'/G)-expansion method. Many new exact ... -
Classification and description of the vegetation in the Spitskop area in the proposed Highveld National Park, North West Province, South Africa
(AOSIS, 2012)The objective of the proposed Highveld National Park (HNP) is to conserve a considerable area of the poorly conserved Rocky Highveld Grassland and Dry Sandy Highveld Grassveld of the western Grassland Biome in South Africa. ...