Faculty of Natural and Agricultural Sciences: Recent submissions
Now showing items 21-40 of 4855
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The star formation histories of galaxies in different stages of pre-processing in the Fornax A group
(OUP, 2023)We study the recentstar formation histories of 10 galaxiesin the Fornax A galaxy group, on the outskirts of the Fornax cluster. The group galaxies are gas-rich, and their neutral atomic hydrogen (H I) was studied in detail ... -
Investigating the Lorentz Invariance Violation effect using different cosmological backgrounds
(IOP, 2023)Familiar concepts in physics, such as Lorentz symmetry, are expected to be broken at energies approaching the Planck energy scale as predicted by several quantum-gravity theories. However, such very large energies are ... -
Electrospinning and antimicrobial properties of PAN–Cu2O/ZnO nanofibers from green peel extracts
(IOP, 2023)This study described the antimicrobial activities of waste biomass-mediated Cu2O/ZnO bi-oxide (BiO) nanocomposites; The Orange peels extract (OPE), and lemon peels extract(LPE), were used to synthesize the bioxide ... -
Facile synthesis of carbon dots by the hydrothermal carbonization of avocado peels and evaluation of the photocatalytic property
(Elsevier, 2023)The preparation of carbon quantum dots (CQDs) from agricultural waste sources stands out as a significant type of biomass-based nanomaterials. This is primarily because of their minute size, exceptional water solubility, ... -
Dual S-scheme heterojunction g-C3N4/Bi2S3/CuS composite with enhanced photocatalytic activity for methyl orange degradation
(Elsevier, 2023)Weak redox potential and high recombination of charge carriers are two main factors that limit the efficiency of photocatalysts in wastewater treatment. In this study, the synthesis of heterostructure photocatalyst ... -
An appraisal on the ethnobotany and antimicrobial activity of botanicals used for managing plant diseases in South Africa
(Elsevier, 2023)Increased food insecurity caused by factors such as plant pests and pathogens has prompted the use of botanicals as alternative control agents. In this review, the ethnobotany and antimicrobial effect of botanicals used ... -
Ceramic-polymer composite membranes: Synthesis methods and environmental applications
(Elsevier, 2023)The increase in demand for membranes with effective performance and unlimited durability for environmental applications has inspired renewed interest in studies focusing on novel or modified methods of improving pristine ... -
Rare rhizo-Actinomycetes: A new source of agroactive metabolites
(Elsevier, 2023)umerous biotic and abiotic stress in some geographical regions predisposed their agricultural matrix to chal lenges threatening plant productivity, health, and quality. In curbing these threats, different customary agrarian ... -
Bambara Nut Root-Nodules Bacteria from a Semi-Arid Region of South Africa and Their Plant Growth-Promoting Traits
(International Journal of Microbiology, 2023)Rhizobial nitrogen-fxing bacteria are the main inhabitants of the root nodules of legume plants. Studying the bacterial community of legume nodules is important in understanding plant growth and nutrient requirements. ... -
Factors governing the chemical composition of rain at a regional site in South Africa
(ScienceDirect, 2023)Precipitation chemistry is influenced by a number of complex processes, which include the temporal and spatial evolution of air masses. Previous wet deposition studies in South Africa could not distinctly relate the ... -
Effect of dung and dung beetle application on topsoil fungal assemblage of a post-coal mining reclamation land: Towards soil health improvement
(Elsevier B.V., 2023)Soil management practices such as organic matter input can ameliorate soil health, including microbial com munities that are crucial for ecological processes. In this study, the effect of successive application of cattle ... -
Dietary inclusion of marama bean (Tylosema esculentum) in broiler chicken diets compromises feed utilization, growth performance, and carcass traits
(Elsevier B.V., 2023-12)Orphan legumes that are native to semi-arid areas of southern Africa, such as marama (Tylosema esculentum) bean, hold promise as sustainable nutrient sources in conventional broiler diets. Yet, their nutritive value ... -
Novel insights into the genetics, morphology, distribution and hosts of the global fish parasitic digenean Proctoeces maculatus (Looss, 1901) (Digenea: Fellodistomidae)
(Cambridge University Press, 2023)Larval stages of the widely distributed digenean species Proctoeces maculatus (Looss, 1901) were reported 40 years ago from South Africa in the common octopus, Octopus vulgaris Cuvier (Octopodidae). However, the absence ... -
The effects of habitat loss and fragmentation on the relative abundance and conservation of Southern Black Korhaan Afrotis afra, a South African endemic
(Cambridge University Press, 2023)Southern Black Korhaan is “Vulnerable” to extinction and a South African endemic that is restricted to the area of the Northern Cape Province that is west of the Great Escarpment, and to the area south of the Great ... -
A ‘One Health’ perspective of Africa-wide distribution and prevalence of Giardia species in humans, animals and waterbodies: a systematic review and meta-analysis
(Cambridge University Press, 2023-05)Giardiasis, caused by Giardia duodenalis, is a leading cause of diarrhoea in resource-poor countries. To gain a better insight into the epidemiology of Giardia in Africa, we undertook a robust study to comprehend the ... -
Mechanical and thermal properties of extrudates produced from discarded coal fines and recycled plastics as binders
(ACS Publications, 2023)This study focuses on the extrusion of discarded coal fines from the Highveld coalfield together with recycled low-density polyethylene (LDPE) and polypropylene (PP) which are used as binders to produce agglomerates with ... -
Unlocking water potential in drylands: Quicklime and fly ash enhance soil microbiome structure, ecological networks and function in acid mine drainage water-irrigated agriculture
(Heliyon, 2024)In water-stressed regions, treated acid mine drainage (AMD) water for irrigated agriculture is a potential solution to address freshwater scarcity. However, a significant knowledge gap exists on the short and long-term ... -
Unpacking the Municipal demarcation application in South Africa
(University of Johannesburg, 2022)The year 2022 marks the sixth democratic local municipal demarcation process in South Africa. The Municipal Demarcation Board has invited the public to put forward their suggestions for the revision of local municipal ... -
An internal flow and heat transfer inside a solid rocket motor combustion chamber : a lie symmetry approach
(Elsevier, 2022)The validity of Solid Rocket Motor (SRM) stability calculations critically depends on the sufficiently detailed and physically correct representation of propellant velocity flow-field, which leads to well behaved flow. A ... -
Lifestyle influences changes in fibrin clot properties over a 10-year period on a population level
(Georg Thieme Verlag, 2022)Case–control and observational studies have provided a plausible mechanistic link between clot structure and thrombosis. We aimed to identify lifestyle, demographic, biochemical, and genetic factors that influence changes ...
