Browsing Faculty of Natural and Agricultural Sciences by Title
Now showing items 4767-4786 of 4825
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Walking the sustainability assessment talk - Progressing the practice of environmental impact assessment (EIA)
(Elsevier, 2012)Internationally there is a growing demand for environmental impact assessment (EIA) to move away from its traditional focus towards delivering more sustainable outcomes. South Africa is an example of a country where the ... -
Warming-induced increase in aerosol number concentration likely to moderate climate change
(Nature Publishing Group, 2013)Atmospheric aerosol particles influence the climate system directly by scattering and absorbing solar radiation, and indirectly by acting as cloud condensation nuclei1, 2, 3, 4. Apart from black carbon aerosol, aerosols ... -
Waste plastic, the challenge facing developing countries - ban it, change it, collect it?
(MDPI, 2019)With changing consumption patterns, growing populations and increased urbanisation, developing countries face significant challenges with regards to waste management. Waste plastic is a particularly problematic one, with ... -
Wat is tyd?
(The Association for Christian Higher Education / Die Vereniging vir Christelike Hoër Onderwys, 2008) -
Water poverty mapping and its management applications
(IBIMA, 2010)In recent years it has been widely recognized that water was managed with little regard to efficiency in its utilization and with no or very little effective pollution control. The amount of freshwater on earth will continue ... -
Water quality and antifungal susceptibility of opportunistic yeast pathogens from rivers
(IWA Publishing, 2017)Yeasts from water sources have been associated with diseases ranging from superficial mucosal infections to life threatening diseases. The aim of this study was to determine the water quality as well as diversity and ... -
Water quality assessment in a small austral temperate river system (Bloukrans River system, South Africa): application of multivariate analysis and diatom indices
(Elsevier, 2019)Diatoms are siliceous micro-algae and have been used with increasing frequency as bioindicators in aquatic ecosystems. Typically, European diatom indices have been modified and augmented with data on taxa endemic to and ... -
Water sustainability and watershed ecosystem health (Editorial)
(Wiley, 2019)Climate change and human activities have unprecedentedly altered the hydrological processes and ecosystem services of watersheds all over the world, causing or exacerbating local and regional water crises, threatening ... -
Waterbird flight initiation distances at Barberspan Bird Sanctuary, South Africa
(AOSIS, 2017)With tourism in South Africa expanding, the number of avitourists increases. The increase in infrastructure and human activities in protected areas, if not managed properly, can be harmful to birds. Flight initiation ... -
Waterworks-specific composition of drinking water disinfection by-products
(RSC, 2019)Reactions between chemical disinfectants and natural organic matter (NOM) upon drinking water treatment result in formation of potentially harmful disinfection by-products (DBPs). The diversity of DBPs formed is high and ... -
Wave-particle-interaction in kinetic plasmas
(Elsevier, 2014)Resonant scattering of energetic protons off magnetic irregularities is the main process in cosmic ray diffusion. The typical theoretical description uses Alfvén waves in the low frequency limit. We demonstrate that the ... -
A web-based survey of horse owners’ perceptions and network analysis of horse movements relating to African horse sickness distribution in Namibia and South Africa
(Elsevier, 2016)Africa horse sickness (AHS) is the most lethal infectious non-contagious horse disease and has accordingly been declared notifiable by the World Organisation for Animal Health. AHS is endemic to sub-Saharan Africa and ... -
Weighted noncommutative Banach function spaces
(Springer, 2019)We review the concept of a weighted noncommutative Banach function space. This concept constitutes a generalisation of the by now well-known theory of noncommutative Banach function spaces associated with a semifinite von ... -
Welfare impacts of social grants in Thulamela local municipality of Limpopo Province, South Africa
(Akroasis, The Scientific Society for the Promotion and Advancement of Social Sciences, 2015)Poverty is a persistent problem in South Africa, especially among the black in the rural areas. The main objective of the study was to assess the welfare impacts of social grants among rural households in Dopeni village. ... -
West Africa - a safe haven for frogs? A sub-continental assessment of the Chytrid Fungus (Batrachochytrium dendrobatidis)
(Public Library of Science, 2013)A putative driver of global amphibian decline is the panzootic chytrid fungus Batrachochytrium dendrobatidis (Bd). While Bd has been documented across continental Africa, its distribution in West Africa remains ambiguous. ... -
What can a comparative genomics approach tell us about the pathogenicity of mtDNA mutations in human populations?
(Wiley, 2019)Mitochondrial disorders are heterogeneous, showing variable presentation and penetrance. Over the last three decades, our ability to recognize mitochondrial patients and diagnose these mutations, linking genotype to ... -
What can we learn from phase alignment of γ-ray and radio pulsar light curves?
(SAIP, 2011)The Fermi Large Area Telescope (LAT) has revolutionized high-energy (HE) astronomy, and is making enormous contributions particularly to γ-ray pulsar science. As a result of the many new pulsar discoveries, the γ-ray pulsar ... -
What caused severe air pollution episode of November 2016 in New Delhi?
(Elsevier, 2020)In recent years, South Asia is experiencing severely degraded air quality, with particulate matter less than 2.5 μm (PM2.5) reaching unprecedented high levels. Here, we investigate a severe air pollution episode (SAPE) ... -
What is the role of impact assessment in the long term?
(World Scientific Publishing, 2015)This short paper makes the case that most impact assessment (IA) has sustainable development as the stated goal, but that it doesn't deliver sustainable outcomes. A key pillar of sustainable development is equity, both ... -
WhatsApp with BlackBerry; can messengers be MXit? A philosophical approach to evaluate social networking sites
(Cape Peninsula University of Technology, 2012)In an Information Technology course, learners are confronted with learning about technology; programming, other technical subjects and some mathematics and statistics. Although learners can struggle with the logical thinking ...