Faculty of Natural Sciences: Recent submissions
Now showing items 1721-1740 of 2642
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Catalytic cracking of naphtha: The effect of Fe and Cr impregnated ZSM-5 on olefin selectivity
(Springer Nature, 2018)This study focuses on the modification of ZSM-5 in order to enhance the catalytic cracking of refinery naphtha to produce light olefins. ZSM-5 was metal modified using different loadings (0.5–5 wt%) of Fe and Cr via the ... -
Allergic rhinitis: To sneeze or to wheeze. Pollen is the question, what is the answer?
(Medpharm Publications, 2018)Allergic rhinitis, also known colloquially as hay fever, is the most common among the allergic diseases. Recent literature reports that it affects up to a tenth of the world population. Atopic diseases have a particularly ... -
Diurnal variations in global Joule heating morphology and magnitude due to neutral winds.
(Wiley, 2018)In the polar ionosphere, variations in Joule heating are significantly controlled by changes in plasma convection, such as that brought about by changes in the interplanetary magnetic field. However, another important ... -
Eco-friendly synthesis, characterization, in vitro and in vivo anti-inflammatory activity of silver nanoparticle-mediated Selaginella myosurus aqueous extract
(Dovepress, 2018)Introduction: There is emerging interest in medicinal plants in the biomedical field, due to their multitude of chemicals which show anti-inflammatory, antimicrobial, antiviral, or antitumoral potential. Research on ... -
A comprehensive survey on Fog Computing: State-of-the-art and research challenges
(IEEE, 2018)Cloud computing with its three key facets (i.e., Infrastructure-as-a-Service, Platform-as-a-Service, and Softwareas- a-Service) and its inherent advantages (e.g., elasticity and scalability) still faces several challenges. ... -
Acute toxicity studies of the South African medicinal plant Galenia africana
(Elsevier, 2018)Background: Medicinal plants are used by a large proportion of the global population as complementary and alternative medicines. However, little is known about their toxicity. G. africana has been used to treat wounds, coughs ... -
Preparation of iron molybdate catalysts for methanol to formaldehyde oxidation based on ammonium molybdoferrate(II) precursor
(Elsevier, 2016)It was demonstrated that iron molybdate catalysts for methanol oxidation can be prepared using Fe(II) as a precursor instead of Fe(III). This would allow for reduction of acidity of preparation solutions as well as ... -
Developing reproducible bioinformatics analysis workflows for heterogeneous computing environments to support African genomics
(Springer Nature, 2018)Background: The Pan-African bioinformatics network, H3ABioNet, comprises 27 research institutions in 17 African countries. H3ABioNet is part of the Human Health and Heredity in Africa program (H3Africa), an African-led ... -
Peroxide-based route for the synthesis of zinc titanate powder
(Elsevier, 2016)In this work the thermodynamical solubility diagrams of zinc and titanium hydroxides were reviewed in order to determine the conditions for maximum degree of phase composition homogenization of precipitates. Experimental ... -
Carica papaya seed extract slows human sperm
(Elsevier, 2019)Ethnopharmacological relevance: Traditional healers use Carica papaya seeds as a remedy for diseases and as a contraceptive for men and abortion in women. Material and methods: Semen samples from 35 healthy men were allowed ... -
Calibrating the James Webb Space telescope filters as star formation rate indicators
(American Astronomical Society, 2018)We have calibrated the 6.5m James Webb Space Telescope (JWST) mid-infrared (MIR) filters as star formation rate (SFR) indicators, using JWST photometry synthesized from Spitzer spectra of 49 low-redshift galaxies, which ... -
Castleman’s disease in the HIV-endemic setting
(Dovepress, 2018)Castleman’s disease (CD), first described by Benjamin Castleman in 1954, is a giant or angiofollicular lymph node hyperplasia, described as a rare monotypic polyclonal B-cell lymphoproliferative disorder with an incompletely ... -
Oral health status and treatment needs of pregnant women attending antenatal clinics in KwaZulu-Natal, South Africa
(Hindawi, 2019)During pregnancy, the oral cavity is characterised by an acidic environment and an inflammatory response brought about by vomiting and changes in hormonal levels, respectively, thereby increasing the mother’s risk of ... -
Colistin, Carbapenem and Cephalosporin-resistant Klebsiella pneumoniae reported from Misrata, Libya
(Medpharm Publications, 2017)Background: National surveillance of antimicrobial resistance has become a mandatory approach to control the spread of antimicrobial resistance and for the establishment of antibiotic treatment guidelines. In this study, ... -
Candida species carriage in diabetic patients in Misrata, Libya
(Medpharm Publications, 2017)Background: There is a paucity of studies describing the prevalence and antimicrobial profiles of Candida in Libya. Limited treatment choices in the antifungal armamentarium in public healthcare settings in Africa require ... -
Towards a model for user-centred design using a positive deviance approach: A case for diabetes self-management
(University of Cape Town, 2017)Over the past twenty years there have been substantive efforts across the African continent to ensure penetration and reach of mobile technology to the citizenry. However there continues to be a debate on precisely how ... -
Vitek characterisation of type 2 diabetes-associated Candida species
(Elsevier, 2017)Background: Type 2 diabetes mellitus (T2DM) predisposes patients to opportunistic infections, such as invasive candidiasis. Treatment of candidiasis is challenged by the emerging resistance of Candida species. In this ... -
Group B streptococcus serotypes in pregnant women from the Western Cape region of South Africa
(Frontiers, 2018-12-04)Background: Maternal colonization of Group B streptococci (GBS) during pregnancy is an important risk factor for neonatal morbidity and mortality. The aim of this study was to determine the prevalence and serotype distribution ... -
An in-depth bibliometric analysis and current perspective on male infertility research
(Korean Society for Sexual Medicine and Andrology, 2019)PURPOSE: Male infertility is emerging as a major, escalating global health problem that imposes the need to investigate research trends in male infertility. The purpose of this study is to analyze male infertility research ...