Browsing Faculty of Natural and Agricultural Sciences by Title
Now showing items 2621-2640 of 4825
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Magnetospheric electric field variations caused by storm-time shock fronts
(Elsevier, 2008)On January 20, 2005 there was an X 7.1 solar flare at 0636 UT with an accompanied halo coronal mass ejection (CME). The resultant interplanetary shock impacted earth ∼36 h later. Near earth, the Advanced Composition Explorer ... -
Maize (Zea mays L.) performance in organically amended mine site soils
(Elsevier, 2016)Organic amendments play an important role in the eco-friendly remediation of degraded mine site soils. This study investigated the quality (essential nutrients and heavy metal content) of maize grown on organically amended ... -
Maize growth in response to cropping system, site and nitrogen fertilization
(National Agricultural Research and Development Institute, 2017)Maize is often grown on the same land year after year as sole crops and this result in lower yield from monocropped maize. An experiment was conducted to investigate the effects of cropping system, location and nitrogen ... -
The major and trace element chemistry of fish and lake water within major South African catchments
(Water Research Commission, 2016)Chemical elements in lake water are incorporated into fish tissues through bioconcentration and biomagnification. Lake water and fish tissue samples from 23 lakes, located within 4 major South African catchments, were ... -
Major secondary aerosol formation in southern African open biomass burning plumes
(Nature, 2018)Open biomass burning contributes significantly to air quality degradation and associated human health impacts over large areas. It is one of the largest sources of reactive trace gases and fine particles to Earth’s atmosphere ... -
Major weather regime changes over Southeast Asia in a near-term future scenario
(Inter-Research, 2017)A near-term future climate scenario over Southeast Asia is generated using a dynamical downscaling approach, and a process-level understanding of the regional climate change is developed by breaking down regional climate ... -
Making data structures and algorithms more understandable by programming sudoku the human way
(WASET, 2013)Data Structures and Algorithms is a module in most Computer Science or Information Technology curricula. It is one of the modules most students identify as being difficult. This paper demonstrates how programming a solution ... -
Making sense of significance in environmental impact assessment
(Taylor & Francis, 2016)Impact significance determination lies at the heart of environmental impact assessment (EIA) but conflict and misunderstanding around the concept is common. This paper attempts to make sense of impact significance in EIA ... -
Making use of survival analysis to indirectly model loss given default
(Stellenbosch Univ, 2018)A direct or indirect modelling methodology can be used to predict Loss Given Default (LGD). When using the indirect LGD methodology, two components exist, namely, the loss severity component and the probability component. ... -
Malaria control Insecticide Residues in Breast Milk: The Need to Consider Infant Health Risks
(PubMed Central, 2009) -
Malaria treatment and farming households income poverty in Lagos State, Nigeria
(Kamla-Raj, 2016)Malaria pandemic threatens economic, social and environmental sustainability throughout sub-Saharan Africa and the world at large. Malaria at the micro-level imposes two significant cost categories (morbidity and mortality ... -
Malgachebates peyrierasi n. gen., n. sp. (Acari: Oribatida: Plasmobatidae) from Madagascar
(Taylor & Francis, 2011)Malgachebates peyrierasi n. gen. n. sp., collected from Ankarongambe Forest Station, Tamatave province, mid-eastern Madagascar, is described and illustrated based on adult specimens. The new genus is easily distinguishable ... -
The Maluti mystery revisited: taxonomy of African River Frogs (Pyxicephalidae, Amietia) on the Drakensberg Mountains in southern Africa
(Magnolia Press, 2015)The taxonomy of two similar frogs from the top of the Drakensberg escarpment, the Maluti River Frog and the Phofung River Frog is not settled. I examine the relevant types and type descriptions, and discover a number of ... -
Maluti Mystery: A systematic review of Amietia vertebralis (Hewitt, 1927) and Strongylopus hymenopus (Boulenger, 1920) (Anura: Pyxicephalidae)
(Magnolia Press, 2008)The taxonomic status of Amietia vertebralis and Strongylopus hymenopus, two frogs restricted to the Maluti-Drakensberg highlands in southern Africa, is unclear. Here, morphological examination and phylogenetic analyses ... -
Managing conflict at work: a qualitative analysis of municipal sports officers views in Gauteng province, South Africa
(LAM Publications; AJOL; Sabinet, 2013)Conflict is an inevitable part of life and the importance of understanding and managing it is cardinal. The lack of understanding of conflict can affect various areas within an organisation, creating unstable and sometimes ... -
Managing human resources in sport: issues, challenges and possible remedies
(AFAHPER-SD, 2016)The common thread that synchronises all activities associated in a sport organisation is its human resources - the people who work tirelessly behind the scene to bring the best possible experience in sport to the management, ... -
Managing marine environments and decision-making requires better application of the physical sedimentary sciences
(Taylor & Francis, 2017)Effective management of marine environments requires a sound understanding of the relevant physical sedimentary sciences. Environmental impact assessment (EIA) is a key management and decision-making tool employed in ... -
Managing uncertainty, ambiguity and ignorance in impact assessment by embedding evolutionary resilience, participatory modelling and adaptive management
(Elsevier, 2015)In the context of continuing uncertainty, ambiguity and ignorance in impact assessment (IA) prediction, the case is made that existing IA processes are based on false ‘normal’ assumptions that science can solve problems ... -
Manganese tolerance of Aloe greatheadii Schönland var. davyana (Schönland) Glen & D.S.Hardy (Asphodelaceae: Alooideae) on Ultramafic-Peralkaline Outcrops, South Africa
(Cactus and Succulent Society of America, 2018)Very little is known about the relations between aloes and soil metals, despite evidence that aloes often form dense populations on metalliferous soils. This study targeted eight rock outcrops where aloes dominated the ... -
Manufacture and optimization of tubular ceramic membrane supports
(Elsevier, 2008)The manufacturing and optimization of centrifugally casted ceramic membrane supports is presented. For the optimization, the effect of three different powder sizes (0.25, 0.31 and 0.61 μm) and a sintering temperature range ...