Faculty of Natural Sciences: Recent submissions
Now showing items 481-500 of 2620
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The effects of endocrine disrupting chemicals on biomarkers of inflammation produced by lipopolysaccharide stimulated raw264.7 macrophages
(MDPI, 2019)Endocrine disrupting chemicals (EDCs) are common pollutants in the environment and can induce disruption of the endocrine and immune systems. The present study evaluated the effects of selected common environmental EDCs ... -
Null models for null hypotheses in taxonomy: A test using Scyphozoa
(Oxford University Press, 2021)Although molecular tools are becoming more important in the delineation of scyphozoan species there is, perforce, a need to substantiate new species definitions using morphological data. Access to type material is often ... -
First report of the melobesioid alga (Corallinales, Rhodophyta) Mesophyllum incisum (Foslie) Adey in South Africa
(Elsevier, 1997)Mesophyllum incisum is reported and studied for the first time in South Africa. It has a th all us surface (SEM) with Leptophyturn-type epithallial cells. TetraJbisporangial conceptacles are mound-like and lack a peripheral ... -
Microscopic, spectroscopic, and electrochemical characterization of novel semicrystalline poly(3-hexylthiophene)-based dendritic star copolymer
(MDPI, 2022): In this study, electron-donating semicrystalline generation 1 poly(propylene thiophenoimine)- co-poly(3-hexylthiophene) star copolymer, G1PPT-co-P3HT was chemically prepared for the first time. Copolymerization was ... -
Crispr-based multi-gene integration strategies to create saccharomyces cerevisiae strains for consolidated bioprocessing
(MDPI, 2022)Significant engineering of Saccharomyces cerevisiae is required to enable consolidated bioprocessing (CBP) of lignocellulose to ethanol. Genome modification in S. cerevisiae has been successful partly due to its efficient ... -
HE 0230–4323: An unusual pulsating hot subdwarf star
(Oxford University Press, 2007)HE 0230−4323 is a known binary, consisting of a subdwarf star and a companion which is not observable in the optical. Photometric measurements reported in this paper have shown it to be both a reflection-effect and a ... -
Relative homotopy in relational structures
(Cambridge University Press, 2018)The homotopy groups of a finite partially ordered set (poset) can be described entirely in the context of posets, as shown in a paper by B. Larose and C. Tardif. In this paper we describe the relative version of such a ... -
Genetic polymorphisms and haplotypes of the organic cation transporter 1 gene (SLC22A1) in the Xhosa population of South Africa
(Brazilian Society of Genetics, 2014)Human organic cation transporter 1 is primarily expressed in hepatocytes and mediates the electrogenic transport of various endogenous and exogenous compounds, including clinically important drugs. Genetic polymorphisms ... -
Is Swaziland on track with the 2015 millennium development goals?
(SAGE Publications, 2017)According to the Millennium Development Goals (MDGs) agreement, each participating country has to periodically provide a report that will show the progress on their achievement towards the goals. This article’s aim is to ... -
Response of soybean nodules to exogenously applied caffeic acid during NaCl-induced salinity
(Elsevier, 2015)affeic acid acts as an antioxidant to scavenge reactive oxygen species, but its influence on plant responses to abi- otic stresses is only partially understood. Here, we investigated the influence of exogenously applied ... -
Control of airborne microbes in a poultry setting using Dioxy MP 14
(FACTA-FUNDACIO ARNCO CIENCIA TECNOLOGIA AVICOLAS, 2015)In this study, Dioxy MP 14, a locally developed form of chlorine dioxide, was tested in a commercial chicken pen to determine its effectiveness as an airborne environmental sanitizing agent. The biocide was introduced via ... -
On maximal inequalities via comparison principle
(SpringerOpen, 2015)Under certain conditions, we prove a new class of one-sided, weighted, maximal inequalities for a standard Brownian motion. Our method of proof is mainly based on a comparison principle for solutions of a system of ... -
Tackling sport-related concussion: Effectiveness of lowering the maximum legal height of the tackle in amateur male rugby - A cross-sectional analytical study
(BMJ Publishing Group, 2023)Objective Rugby union ( € rugby') is popular globally, with most of its participants being amateur. Concern regarding sport-related concussion (SRC) sustained during rugby is increasing. SRC occurs most frequently in the ... -
Impact of Varicocele Repair on Semen Parameters in Infertile Men: A Systematic Review and Meta-Analysis
(Korean Society for Sexual Medicine and Andrology, 2023)Purpose: Despite the significant role of varicocele in the pathogenesis of male infertility, the impact of varicocele repair (VR) on conventional semen parameters remains controversial. Only a few systematic reviews and ... -
2-Arylnaphthoquinone analogues: Potential anti-TB and pro-apoptotic agents
(Green, I. R. et al. (2011). 2-Arylnaphthoquinone analogues: Potential anti-TB and pro-apoptotic agents. ARKIVOC, (x), 192-212. https://doi.org/10.3998/ark.5550190.0012.a16, 2011)A useful library of substituted 2-arylnaphthoquinones prepared by reaction between the corresponding bromonaphthoquinones and arylboronic acids via Suzuki-Miyaura protocols has been established. Conversion of some of the ... -
Modelling human protein interaction networks as metric spaces has potential in disease research and drug target discovery
(BMC, 2014)We have recently shown by formally modelling human protein interaction networks (PINs) as metric spaces and classified proteins into zones based on their distance from the topological centre that hub proteins are primarily ... -
Palladium-gold nanoalloy surface modified limn2o4 cathode for enhanced li-ion battery
(Hindawi, 2015)Au with Pd nanoparticles were synthesized and coated onto the spinel LiMn2O4 via a coprecipitation calcination method with the objective to improve the microstructure, conductivity, and electrochemical activities of ... -
Prioritization of anti-malarial hits from nature: Chemo-informatic profiling of natural products with in vitro antiplasmodial activities and currently registered anti-malarial drugs
(BMC, 2016)A large number of natural products have shown in vitro antiplasmodial activities. Early identification and prioritization of these natural products with potential for novel mechanism of action, desirable pharmacokinetics ... -
A robust spectral method for pricing of American put options on zero-coupon bonds
(Global-Science Press, 2018)American put options on a zero-coupon bond problem is reformulated as a linear complementarity problem of the option value and approximated by a nonlinear partial differential equation. The equation is solved by an ... -
Steady‐state population pharmacokinetics of terizidone and itsmetabolite cycloserine in patients with drug‐resistanttuberculosis
(Wiley, 2019)Despite terizidone being part of the second‐line recommended drugs fortreatment of drug‐resistant tuberculosis (DR‐TB), information on its pharmacokineticsis scarce. The aim of this study was to describe the steady‐state ...