Browsing Faculty of Natural and Agricultural Sciences by Title
Now showing items 30-49 of 4825
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A comparative study of the stability of stem bromelain based on the variation of anions of imidazolium-based ionic liquids
(Elsevier, 2017)There are numerous applications of ionic liquids (ILs) particularly in biology since, some of the ILs stabilizes the protein and augment enzyme activity while some of them have opposite effect. We have explored the influence ... -
A concept analysis for improving working conditions
(UNISA Press, 2017)Improving working conditions is a concept of significance in the workplace, particularly in the public health setting. This is because working conditions in public hospitals have been described in literature as horrendous, ... -
A dimensional analysis of destination image variables in a south african context: an exploratory study
(The Social Sciences Research Society, 2016)It is generally accepted in tourism literature that destination image (DI), the importance of which is universally acknowledged, is often used as a significant element for local tourists in the choice of a vacation ... -
A dual version of Huppert's conjecture on conjugacy class sizes
(De Gruyter, 2015)In [J. Algebra 344 (2011), 205–228], a conjecture of J. G. Thompson for PSLn(q) was proved. It was shown that every finite group G with the property Z(G) = 1 and cs(G) = cs(PSLn(q)) is isomorphic to PSLn(q) where cs(G) is ... -
A game theory perspective on environmental assessment: what games are played and what does this tell us about decision making rationality and legitimacy?
(Elsevier Science Inc, 2016)Game theory provides a useful theoretical framework to examine the decision process operating in the context of environmental assessment, and to examine the rationality and legitimacy of decision-making subject to Environmental ... -
A highly resourceful magnetically separablemagnetic nanoparticles from aqueous peel extract of Bottle gourds for organic dyes degradation
(Elsevier, 2017)Present work, described the green synthesis of Pd supported Fe3O4 magnetic nanoparticles BG/Pd/Fe3O4MNPs from aqueous Peel extract of Bottlegourds (BG) which act as reducing and capping agent. Synthesized nanoparticles of ... -
A longitudinal study of the aftermath of rape among rural South African women
(American Psychological Association, 2017)OBJECTIVE: Sexual assaults against women are a global health crisis, with alarmingly high rates in South Africa. However, we know very little about the circumstances and the aftermath of these experiences. Further, there ... -
A model of collaboration between nursing education institutions in the North West Province of South Africa
(AOSIS, 2017)Background: Professional nursing in South Africa is obtained through a 4-year diploma offered at nursing colleges, or a 4-year degree in universities, and the South African Nursing Council (SANC) registered both for ... -
A multiple exp-function method for the three model equations of shallow water waves
(SpringerSpringer, 2017)In this study, we consider three model equations of shallow water waves. Shallow water equations model the propagation of strongly nonlinear waves up to breaking and run-up in nearshore zones. We perform multiple exp-function ... -
A new method for solving a coagulation-fragmentation equation
(SAS International Publications, 2016)In this paper, we study the well-posedness of a nonlinear non-autonomous integro-differential equation modeling coagulationfragmentation processes. We construct two monotone sequences of upper and lower solutions, and ... -
A new strategy for heavy metal polluted environments: a review of microbial biosorbents
(MDPI, 2017)Persistent heavy metal pollution poses a major threat to all life forms in the environment due to its toxic effects. These metals are very reactive at low concentrations and can accumulate in the food web, causing severe ... -
A norm for an academic literacy placement test
(SAALT/SAVTO, 2016)A test series usually consists of various versions of a test. Test-takers and consumers of tests expect all these versions to be at the same level of difficulty, but this is very difficult to achieve at the test design ... -
A note on rational solutions to a Hirota-Satsuma-like equation
(Elsevier, 2016)With the generalized bilinear operators based on a prime number p = 3, a Hirota-Satsuma-like equation is proposed. Rational solutions are generated and graphically described by using symbolic computation software Maple. -
A note on the affine subgroup of the symplectic group
(University of Isfahan, 2016)We examine the symplectic group Sp2m(q) and its corresponding affine subgroup?. ?We construct the affine subgroup and show that it is a split extension?. ?As an illustration of the above we study the affine subgroup 25:Sp4(2) ... -
A novel method for solving a coagulation-fragmentation model with growth
(SAS International Publications, 2016)The global solvability of a nonlinear non-autonomous integro-differential equation describing coagulation-fragmentation processes with growth is investigated using a modified monotone method. Existence and uniqueness results ... -
A novel UPLC-MS/MS based method to determine the activity of N-acetylglutamate synthase in liver tissue
(Elsevier, 2016)Background N-acetylglutamate synthase (NAGS) plays a key role in the removal of ammonia via the urea cycle by catalyzing the synthesis of N-acetylglutamate (NAG), the obligatory cofactor in the carbamyl phosphate synthetase ... -
A proposed quantitative credit-rating methodology for South African provincial departments
(AOSIS, 2016)The development of subnational credit-rating methodologies affords benefits for subnationals, the sovereign and its citizens. Trusted credit ratings facilitate access to financial markets and above-average ratings allow ... -
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 ...