Browsing Faculty of Natural and Agricultural Sciences by Title
Now showing items 147-166 of 4825
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Agro-ecological options for fall armyworm (Spodoptera frugiperda JE Smith) management: providing low-cost, smallholder friendly solutions to an invasive pest
(Elsevier, 2019)Fall armyworm (FAW), a voracious agricultural pest native to North and South America, was first detected on the African continent in 2016 and has subsequently spread throughout the continent and across Asia. It has been ... -
Agrochemicals in freshwater systems and their potential as endocrine disrupting chemicals: a South African context
(Elsevier, 2021)South Africa is the largest agrochemical user in sub-Saharan Africa, with over 3000 registered pesticide products. Although they reduce crop losses, these chemicals reach non-target aquatic environments via leaching, spray ... -
The aid of optical studies in understanding millisecond pulsar binaries
(Sissa Medialab, 2016)A large number of new “black widow” and “redback” energetic millisecond pulsars with irradiated stellar companions have been discovered through radio and optical searches of unidentified Fermi sources. Synchrotron emission, ... -
An air quality assessment in the industrialised western Bushveld Igneous Complex, South Africa
(ASSAf, 2012)South Africa has the largest industrialised economy in Africa, with significant mining and metallurgical activities. A large fraction of the South African mineral assets is concentrated in the Bushveld Igneous Complex ... -
Air quality indicators from the Environmental Performance Index: potential use and limitations in South Africa
(National Association for Clean Air, South Africa, 2017)In responding to deteriorating air quality, many countries, including South Africa, have implemented national programmes that aim to manage and regulate ambient air quality, and the emissions of air pollutants. One aspect ... -
Alain Dubois’ contributions to African amphibian nomenclature
(ISSCA, 2018)Alain Dubois has made important contributions to our understanding of African amphibians. His 1981 interpretations based only on earlier literature include the recognition of a series of subfamiles in the Ranidae. Later ... -
Alcohol consumption and cardiovascular disease risk in an African population in transition: the prospective urban and rural epidemiology (PURE) study
(Medpharm Publications, 2010)Objective: There is evidence showing a cardioprotective effect of light to moderate alcohol consumption in many populations. Whether alcohol consumption reduces cardiovascular disease (CVD) risk in an African population ... -
Alcohol metabolism and health hazards associated with alcohol abuse in a South African context: a review
(Medpharm Publications, 2010)The World Health Organization recently stated that alcohol consumption is the fifth leading cause of death worldwide and that intakes are increasing, especially in developing countries. Alcohol-related effects are major ... -
ALG6-CDG in South Africa: genotype-phenotype description of five novel patients
(Springer, 2012)ALG6-CDG (formerly named CDG-Ic) (phenotype OMIM 603147, genotype OMIM 604566), is caused by defective endoplasmic reticulum a-1,3-glucosyltransferase (E.C 2.4.1.267) in the N-glycan assembly pathway (Gr€unewald et al. ... -
ALG6-CDG: a recognizable phenotype with epilepsy, proximal muscle weakness, ataxia and behavioral and limb anomalies
(Springer, 2016)Introduction Alpha-1,3-glucosyltransferase congenital disorder of glycosylation (ALG6-CDG) is a congenital disorder of glycosylation. The original patients were described with hypotonia, developmental disability, epilepsy, ... -
Alien freshwater fish parasites from South Africa: diversity, distribution, status and the way forward
(Elsevier, 2017)The global translocation and introduction of freshwater fish into non-native regions has created the perfect opportunity for the co-introduction of their parasites. In a recent review on non-native freshwater fish introductions ... -
Aligning student and educator capstone project preferences algorithmically
(IEEE, 2018)This paper reviews recent attempts by researchers at the University of Johannesburg (UJ) to increase the level of student engagement in a final year capstone project by allowing for a greater level of autonomy in project ... -
The alignment between spatial planning, transportation planning and environmental management within the new spatial systems in South Africa
(AJOL, 2015)The debate and discourse for the need to integrate spatial planning, transportation planning and environmental management strategically, functionally and operationally is ongoing since the early 1990s. This includes the ... -
All solutions to an operator Nevanlinna-Pick interpolation problem
(Springer, 2018)The main results presented in this paper provide a complete and explicit description of all solutions to the left tangential operator Nevanlinna– Pick interpolation problem assuming the associated Pick operator is strictly ... -
The All Towns Reconciliation Strategies a partnership between water resource management and water services
(IWA Publishing, 2019)In 2012, the South African Department of Water and Sanitation (DWS) initiated a study: Continuation of the Northern Planning Region's All Towns Reconciliation Strategies: Phase 1. This study reviewed, prioritised and updated ... -
All-atomistic molecular dynamics (AA-MD) studies and pharmacokinetic performance of PAMAM-dendrimer-furosemide delivery systems
(Elsevier, 2018)Improvement of problematic dissolution and solubility properties of a model drug, furosemide, was investigated for poly(amidoamine) (PAMAM) dendrimer complexes of the drug. Full and half generation dendrimers with amino ... -
Alliaceae: micromorphology and cytology of Prototulbaghia Siebertii, with notes on its taxonomic significance
(South African National Biodiversity Institute, 2011) -
The Alpine vascular plants of Baxter State Park, Maine, USA
(The New England Botanical Club, 2017)We conducted 12 days of field surveys on five mountains over 1100 m in elevation (Katahdin, North Brother, South Brother, Mount Coe, and The Owl) in Baxter State Park (BSP), Maine during the summers of 2013–14. In addition, ... -
Alteration paragenesis and the timing of mineralised quartz veins at the world-class Geita Hill gold deposit, Geita Greenstone Belt, Tanzania
(Elsevier, 2017)The world-class Geita Hill deposit is one of the largest gold deposits located within the Geita Greenstone Belt in NW Tanzania. The deposit is hosted within a complexly deformed sedimentary package dominated by ironstone ... -
Altered fatty acid metabolism due to rifampicin-resistance conferring mutations in the rpoB gene of mycobacterium tuberculosis: mapping the potential of pharmaco-metabolomics for global health and personalized medicine
(Mary Ann Liebert Inc, 2012)We investigated the use of gas chromatography mass spectrometry (GC-MS) metabolomics to better characterize rifampicin-resistance by comparing the fatty acid metabolomes of two rpoB mutant Mycobacterium tuberculosis strains ...