Browsing Faculty of Natural Sciences by Title
Now showing items 774-793 of 2571
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Evaluating the impact of land use and land cover change on unprotected wetland ecosystems in the arid-tropical areas of South Africa using the Landsat dataset and support vector machine
(Taylor and Francis Group, 2022)The study explored the impact of Land Use and Land Cover (LULC) change dynamics in relation to the condition and status of an unprotected wetland located in the arid-tropical parts of the Limpopo Province, South Africa. ... -
Evaluating the relevance of the “Real Access” criteria as a framework for rural HCI research
(ACM, 2006)Developing ICT software that is useful and usable in a rural context poses many problems. One of the major difficulties is understanding the real needs of the target users and the constraints imposed by the rural environment. ... -
Evaluation of Antibacterial Activity of Bryopsis pennata and Chaetomorpha antennina against Multidrug Resistant Morganella morganii and Salmonella species Isolated from Healthy Individuals
(International Journal for Pharmaceutical Research Scholars, 2017)The problem of antibiotic resistance is fast becoming a pandemic which has necessitated the need for new drugs discovery. This study was carried out to screen two green algal species- Bryopsis pennata and Chaetomorpha ... -
Evaluation of probabilistic photometric redshift estimation approaches for The Rubin Observatory Legacy Survey of Space and Time (LSST)
(Oxford University Press, 2020-09-14)Many scientific investigations of photometric galaxy surveys require redshift estimates, whose uncertainty properties are best encapsulated by photometric redshift (photo-z) posterior probability density functions (PDFs). ... -
Evaluation of protein purification techniques and effects of storage duration on lc-ms/ms analysis of archived ffpe human crc tissues
(Frontiers Media, 2021)To elucidate cancer pathogenesis and its mechanisms at the molecular level, the collecting and characterization of large individual patient tissue cohorts are required. Since most pathology institutes routinely preserve ... -
Evaluation of reference values of standard semen parameters in fertile Egyptian men
(Wiley, 2018)The reference values of human semen, published in the WHO’s latest edition in 2010, were lower than those previously reported. The objective of this study was to evaluate reference values of standard semen parameters in ... -
Evaluation of selected carotenoids of Lycopersicon esculentum variants as therapeutic targets for 'Alzheimer's disease: an in silico approach BMC Molecular and Cell Biology
(Springer, 2021-10)The seriousness and menace of the worldwide weight of 'Alzheimer's disease have been related to a few factors, which incorporate antioxidant system depletion, mutation of proteins, and high expression of cholinesterases ... -
Evaluation of seminal oxidation–reduction potential in male infertility
(Blackwell Publishing Ltd, 2021)The role of oxidative stress in male infertility has been broadly recognised, and the search for a new marker to determine the redox environment in semen has gained considerable interest. Oxidation–reduction potential (ORP) ... -
Evaluation of synergistic anticandidal activity of galenia africana extract and fluconazole against candida albicans and candida glabrata
(Elsevier, 2022-03)Candida infections have increased in recent years and are causing a serious public health concern. In addition, Candida species are becoming resistant to numerous antifungal drugs. It is for this reason that alternative ... -
Evaluation of Terminalia macroptera (Combretaceae) Guill. & Perr stem bark extract incorporated into an emulgel for the potential management of rheumatoid arthritis
(Scientific African, 2023)Background: Rheumatoid Arthritis (RA) is a chronic disease which causes inflammation and damage to the joint. The goals of treatment are to stop inflammation, relieve symptoms, improve physical function and overall well-being. ... -
Evaluation of the antidiarrhoeal and antidiabetic activities of the leaf aqueous extract of Syzygium cordatum hoscht. ex C.Krauss (Mytraceae) in rodents
(Asian Network for Scientific Information, 2013)Syzygium cordatum Hoscht. ex C.Krauss is widely used by traditional medicine practitioners to treat many ailments including diarrhoea and diabetes. Despite the folklore use, little evidence can be found in literature to ... -
Evaluation of the effects of Olea europaea L. subsp. africana (Mill.) P.S. Green (Oleaceae) leaf methanol extract against castor oil-induced diarrhoea in mice
(Oxford University Press, 2010)Olea europaea L. subsp. africana (Mill.) P.S. Green is widely used in South Africa by traditional medicine practitioners to treat diarrhoea. However, little is known scientifically about this South African species in the ... -
Evaluation of the morpho-physiological, biochemical and molecular responses of contrasting medicago truncatula lines under water deficit stress
(MPDI, 2021)Medicago truncatula is a forage crop of choice for farmers, and it is a model species for molecular research. The growth and development and subsequent yields are limited by water availability mainly in arid and semi-arid ... -
Evidence for cosmic acceleration with next-generation surveys: A model-independent approach
(Oxford University Press, 2020)We quantify the evidence for cosmic acceleration using simulations of H(z) measurements from SKA- and Euclid-like surveys. We perform a non-parametric reconstruction of the Hubble parameters and its derivative to obtain ... -
Evidence for rapid evolution of periodic variations in an ultracool dwarf
(Oxford University Press, 2006)The results of three short photometric monitoring runs on the L0 dwarf 2MASS J06050196−2342270, during three consecutive nights, are presented. The observations show the persistent presence of a 2.4-h period, with an IC ... -
Evidence from the Vredefort Granophyre Dikes points to crustal relaxation following basin-size impact cratering
(Academic Press Inc., 2021-11-24)The timescale of the modification stage of basin-sized impact structures is not well understood. Owing to ca. 10 km of erosion since its formation, the Vredefort impact structure, South Africa, is an ideal testing ground ... -
Evidence of pervasive biologically functional secondary structures within the Genomes of Eukaryotic Single-Stranded DNA Viruses
(American Society for Microbiology, 2013)Single-stranded DNA (ssDNA) viruses have genomes that are potentially capable of forming complex secondary structures through Watson-Crick base pairing between their constituent nucleotides. A few of the structural elements ... -
Evidence that dicot-infecting mastreviruses are particularly prone to inter-species recombination and have likely been circulating in Australia for longer than in Africa and the Middle East
(Elsevier, 2013)Viruses of the genus Mastrevirus (family Geminiviridae) are transmitted by leafhoppers and infect either mono- or dicotyledonous plants. Here we have determined the full length sequences of 49 dicot-infecting mastrevirus ... -
Evolution and structural analysis of Glossina morsitans (Diptera; Glossinidae) Tetraspanins
(MDPI, Basel, Switzerland, 2014)Tetraspanins are important conserved integral membrane proteins expressed in many organisms. Although there is limited knowledge about the full repertoire, evolution and structural characteristics of individual members ... -
Evolution from 4f-electron antiferromagnetic to ferromagnetic order in the CeCu(Ge1-xSnx) alloy series (0≤x≤1)
(American Institute of Physics Inc., 2017)We report the evolution from ferromagnetic (FM) to antiferromagnetic (AFM) state in CeCu(Ge1-xSnx) investigated by means of magnetic and heat capacity measurements. X-ray diffraction studies for all compositions indicate ...