Browsing Faculty of Natural Sciences by Title
Now showing items 151-170 of 2571
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Assessing the variation of river channel reach inflows on transmission losses
(World Water Policy, 2022)Arid and semi-arid regions are characterized by limited water availability throughout the year and highly variable streamflows. River channel transmission losses add another uncertainty to the complex flow regimes. However, ... -
Assessment of catchment scale groundwater-surface water interaction in a non-perennial river system, heuningnes catchment, South Africa
(Scientific African, 2023)A significant proportion of the world's river networks are non-perennial rivers that are characterized by segments of dry, standing, and flowing water. However, the role of groundwater and the controlling elements governing ... -
Assessment of concentration levels of contaminants in groundwater of the Soutpansberg region, Limpopo Province, South Africa
(MDPI, 2022)Groundwater contributions towards improved food security and human health depend on the level of contaminants in groundwater resources. Many people in rural areas use groundwater for drinking purposes without treatment ... -
Assessment of genetic diversity in Tunisian populations of Medicago polymorpha based on SSR markers
(Instituto de Investigaciones Agropecuarias, 2021)Medicago polymorpha L. is a herbaceous legume that can be a useful pasture crop, especially in Mediterranean climates. This study aimed to analyze the genetic variation in five populations of M. polymorpha collected from ... -
Assessment of microbial contamination of groundwater in upper Limphasa River catchment, located in a rural area of northern Malawi
(Water Research Commission, 2012)In rural Africa, scientific evidence is often lacking to guide the scaling-up of groundwater as the safest source of potable water. An investigation was conducted in the Upper Limphasa Catchment in northern Malawi to ... -
An assessment of social accountability among South African pharmacy schools from public domain information
(AFAHPER-SD, 2017)Global health education reform requires training institutions to align their education, service and research activities with the values of social accountability, which include relevance, equity, quality and effectiveness. ... -
Assessment of temporal and spatial evolution of bacterial communities in a biological sand filter mesocosm treating winery wastewater
(The Society for Applied Microbiology, 2013)AIMS: To assess the impact of winery wastewater (WW) on biological sand filter (BSF) bacterial community structures, and to evaluate whether BSFs can constitute alternative and valuable treatment-processes to remediate WW. ... -
An assessment of the age reporting in Tanzania population census
(Academic Research Publishing, 2012)The objective of this paper is to provide data users with a worldwide assessment of the age reporting in the Tanzania Population Census 2012 data. Many demographic and socio-economic data are age-sex attributed. However, ... -
An assessment of the influence of host species, age, and thallus part on kelp-associated diatoms
(MDPI, 2020)Diatom community composition and abundances on different thallus parts of adult and juvenile specimens of Ecklonia maxima and Laminaria pallida were examined in False Bay, South Africa, using light and scanning electron ... -
Assessment of thermal and hydrolytic stabilities and aqueous solubility of artesunate for formulation studies
(AAPS PharmSciTech, 2023)For the purpose of establishing the optimum processing parameters and storage conditions associated with nanolipid formulations of the artemisinin derivative artesunate, it was necessary to evaluate the thermal stability ... -
Assessment of Vancomycin Pharmacokinetics and Dose Regimen Optimisation in Preterm Neonates
(Springer Nature, 2020)The pharmacokinetics of vancomycin, a drug used for the treatment of methicillin-resistant Staphylococcus aureus (MRSA), varies between paediatric and adult patients. The objective of this study was to assess the ... -
Associated risk factors of STIs and multiple sexual relationships among youths in Malawi
(PLoS, 2015)Having unprotected sex with multiple sexual partners (MSP) is the greatest risk factor for human immunodeficiency virus (HIV) and other sexually transmitted infections (STIs) among youths. Young people with MSPs are less ... -
Association among sperm chromatin condensation, sperm DNA fragmentation and 8-OHdG in seminal plasma and semen parameters in infertile men with oligoasthenoteratozoospermia
(Wiley, 2021)The present study aimed to investigate the clinical role of standard sperm diagnosis parameters (sperm concentration, motility, morphology) as well as aniline blue staining of histones, 8-OHdG, TUNEL assay were performed ... -
Association analysis of two single-nucleotide polymorphisms of the RELN gene with autism in the South African population
(Mary Ann Liebert, Inc., 2013)BACKGROUND: Autism (MIM209850) is a neurodevelopmental disorder characterized by a triad of impairments, namely impairment in social interaction, impaired communication skills, and restrictive and repetitive behavior. A ... -
The association between environmental exposures during childhood and the subsequent development of Crohn's Disease: A score analysis approach
(Public Library of Science, 2017)Background Environmental factors during childhood are thought to play a role in the aetiology of Crohn's Disease (CD). In South Africa, recently published work based on an investigation of 14 childhood environmental exposures ... -
The association between gender and tooth loss in a small rural population of South Africa
(Science Publishing Group, 2013)Periodontal disease, which attacks the gums and supporting structures of the tooth, is one of the major causes of tooth loss in adults. Few studies on general well-being have compared the differences in oral health between ... -
Association between pro-inflammatory alleles and allergic phenotypes in Xhosa adolescents
(Wiley, 2018)BACKGROUND: Significant differences exist in the prevalence, spectrum, and severity of allergic diseases between developing and developed countries and between subpopulations within single countries. These discrepancies ... -
Association between promoter methylation of MLH1 and MSH2 and reactive oxygen species in oligozoospermic men—A pilot study
(Wiley, 2017)MLH1 and MSH2 are important genes for DNA mismatch repair and crossing over during meiosis and are implicated in male infertility. Therefore, the methylation patterns of the DNA mismatch repair genes MLH1 and MSH2 in ... -
Association between socio-economic factors and HIV self-testing knowledge amongst South African women
(AOSIS, 2022)Self-testing for HIV is an effective and alternative method of increasing HIV testing rates and a strategy for reaching populations that are underserved by HIV testing services. Nonetheless, many resource-constrained ... -
The association of mthfr (rs1801133) with hypertension in an indigenous South African population
(Frontiers Media, 2022)The current study sought to investigate the association between the methylenetetrahydrofolate reductase (MTHFR) variant (rs1801133) and the risk of developing hypertension (HTN) in an indigenous South African population.A ...