Browsing Faculty of Natural and Agricultural Sciences by Title
Now showing items 47-66 of 4825
-
A qualitative analysis of motives and challenges in professional female soccer
(2015)This study investigated the motives and challenges experienced by professional female soccer players in South Africa. It used a qualitative research approach in which data was collected from eleven purposively selected ... -
A review of mixture theory for deformable Porous media and applications
(MDPI, 2017)Mixture theory provides a continuum framework to model a multi-phase system. The basic assumption is, at any instant of time all phases are present at every material point and momentum and mass balance equations are ... -
A review of therapeutic potentials of sweet potato: Pharmacological activities and influence of the cultivar
(Pharmacotherapy Group, 2016)Sweet potato (Ipomoea batatas) is a global food crop, now being recognized as a functional food due to several of its nutraceutical components. Several experimental studies have reported that sweet potato can generally be ... -
A sensor for the determination of Lindane using PANI/Zn, Fe(III) Oxides and Nylon 6,6/MWCNT/Zn, Fe(III) Oxides nanofibers modified glassy carbon electrode
(Hindawi Publishing Corporation, 2016)A simple reproducible and environmentally friendly PANI/Zn, Fe(III) and Nylon 6,6/MWCNT/Zn, Fe(III) oxides nanofibers modified glassy carbon electrode was prepared and used for the electrochemical reduction of lindane. The ... -
A small-amplitude study of solitons near critical plasma compositions
(Cambridge Univ Press, 2016)The properties of small-amplitude solitons are established near critical plasma compositions in a generalized fluid plasma with an arbitrary number of species. The study is conducted via a Taylor series expansion of the ... -
A stochastic analysis of HIV dynamics driven by fractional Brownian motion
(SAS International Publications, 2017) -
A study of a generalized Benney Luke equation with time-dependent coefficients
(SpringerSpringer, 2017)This paper studies a generalized Benney-Luke equation with time-dependent coefficients using Lie symmetry methods. Lie group classification with respect to the time-dependent coefficients is performed by first deriving the ... -
A study of the molecular interactions between ammonium-based ionic liquids and N,N-dimethylacetamide
(Elsevier, 2016)In this work, we report the molecular interactions of different cation alkyl chain lengths with same anion of ammonium-based ionic liquids (ILs) such as tetraethylammonium hydroxide (TEAH), tetrapropylammonium hydroxide ... -
A substance use prevention programme focusing on resilience as a protective factor for adolescents in the North West Province of South Africa
(Kamla-Raj, 2017)Adolescents' substance use needs to be identified and addressed as soon as possible and substance use among adolescents needs to be prevented. The purpose of this study was to develop a substance use prevention programme ... -
A survey of production systems, management and marketing strategies for Tswana Goats in Semiarid areas around Mafikeng, North West Province
(Kamla-Raj, 2016)Goat production in communal areas is faced with numerous challenges which may differ with geographical locations. Marketing of goats in North West province has a potential to help diversify the economy and alleviate poverty ... -
A theoretical analysis of the dynamics of AIDS and random condom use
(SAS International Publications, 2017) -
A theoretical study on the antioxidant properties of methoxy-substituted chalcone derivatives: a case study of kanakugiol and pedicellin through their Fe (II and III) coordination ability
(World Scientific Publishing, 2016)A theoretical study on the antioxidant properties of two chalcone derivatives, kanakugiol and pedicellin, is performed by considering their Fe2+ and Fe3+ coordination ability. The objective of the study is to elucidate the ... -
A unified inverse scattering transformation for the local and nonlocal nonautonomous Gross-Pitaevskii equations
(AIP, 2017)We present the inverse scattering transformation for a nonisospectral AKNS hierarchy in which the spectral parameter is determined by an ordinary differential equation with polynomial nonlinearity, and thus, we give a ... -
Aalwurms by sojabone raak al hoe erger
(Netwerk24, 2020)Die toename in aalwurms wek kommer in die sojaboonbedryf. Namate die produksie styg, neem die blootstelling aan siektes en plae ook toe. Wisselbou en kultivars met genetiese weerstand is dalk nie doeltreffend genoeg om ... -
An AB initio model for cosmic-ray modulation
(IOP Publishing, 2013)A proper understanding of the effects of turbulence on the diffusion and drift of cosmic rays (CRs) is of vital importance for a better understanding of CR modulation in the heliosphere. This study presents an ab initio ... -
An AB initio model for the modulation of galactic cosmic-ray electrons
(IOP Publishing, 2013)The modulation of galactic cosmic-ray electrons is studied using an ab initio three-dimensional steady state cosmicraymodulation code in which the effects of turbulence on both the diffusion and drift of these cosmic-rays ... -
Abalone growth and associated aspects: now from a metabolic perspective
(Wiley, 2018)Worldwide, there are approximately 100 Haliotis species, more commonly known as abalone or ‘Paua’ in New Zealand, ‘Venus's‐ears’ in Greece, ‘Awabi’ in Japan, ‘Perlemoen’ in South Africa and ‘Ormers’ in Europe. Regardless ... -
Aberrant synthesis of ATP synthase resulting from a novel deletion in mitochondrial DNA in an African patient with progressive external ophthalmoplegia
(Springer, 2010)A young, adult, African male patient presented with progressive proximal muscle weakness, external ophthalmoplegia and ptosis, as well as cardiac conduction abnormalities resembling Kearns–Sayre syndrome (KSS). Magnetic ... -
The ablation of gas clouds by blazar jets
(EDP Sciences, 2020)Context. Flaring activity in blazars can last for vastly different timescales, and it may be the result of density enhancements in the jet flow that result from the intrusion of an interstellar cloud into the jet. Aims. ... -
Abnormal tricarboxylic acid cycle metabolites in isovaleric acidaemia
(Springer, 2009)Background Although a number of abnormal diagnostic metabolites have previously been described in the urine of patients with isovaleric acidaemia (IVA), they do not fully explain the clinical symptoms associated with this ...