Browsing Faculty of Natural Sciences by Title
Now showing items 1558-1577 of 2571
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Multiplication of Crowns
(Instituto de Matematica de Bahia Blanca (INMABB-CONICET), 2013)It is known that the only nite topological spaces that are H-spaces are the discrete spaces. For a nite poset which is weakly equivalent to an H-space, a generalized multiplication may be found after suitable ... -
Multipole expansion for 21 cm intensity mapping power spectrum: forecasted cosmological parameters estimation for the ska observatory
(Oxford University Press, 2023)The measurement of the large-scale distribution of neutral hydrogen in the late Universe, obtained with radio telescopes through the hydrogen 21 cm line emission, has the potential to become a key cosmological probe in the ... -
Multipole expansion for H I intensity mapping experiments: simulations and modelling
(Oxford University Press, 2020)We present a framework and an open-source PYTHON toolkit to analyse the two-point statistics of 3D fluctuations in the context of H I intensity maps using the multipole expansion formalism. We include simulations of the ... -
Multipoles of the relativistic galaxy bispectrum
(IOP Publishing Ltd, 2020)Above the equality scale the galaxy bispectrum will be a key probe for measuring primordial non-Gaussianity which can help differentiate between different inflationary models and other theories of the early universe. On ... -
Multispectral remote sensing of potential groundwater dependent vegetation in the greater Floristic region of the Western Cape, South Africa
(Taylor and Francis Group, 2023)Groundwater dependent vegetation (GDV) is increasingly threa-tened by the transformation of the natural environment. An under-standing of the nature of GDV at the appropriate scale helps environmental managers make suitable ... -
Multispectral remote sensing of wetlands in semi-arid and arid areas: A review on applications, challenges and possible future research directions
(Remote Sensing, 2022)Wetlands are ranked as very diverse ecosystems, covering about 4–6% of the global land surface. They occupy the transition zones between aquatic and terrestrial environments, and share characteristics of both zones. Wetlands ... -
Multistage antiplasmodial activity of hydroxyethylamine compounds,in vitroandin vivoevaluations
(Royal Society of Chemistry, 2020)Malaria, a global threat to the human population, remains a challenge partly due to the fast-growing drug-resistant strains of Plasmodium species. New therapeutics acting against the pathogenic asexual and sexual stages, ... -
Multivariate comparisons of the period–light-curve shape distributions of Cepheids in five galaxies
(Oxford University Press, 2007)A number of published tests suitable for the comparison of multivariate distributions are described. The results of a small power study, based on realistic Cepheid log period – Fourier coefficient data, are presented. ... -
Muscle fiber type and metabolic profiles of four muscles from the African black ostrich
(Meat Science, 2023)Muscle fiber type, fiber cross-sectional area (CSA), enzyme activities (citrate synthase (CS), 3-hydroxyacetyl Co A dehydrogenase (3HAD), lactate dehydrogenase (LDH) and phosphofructokinase (PFK)) and glycogen content were ... -
MUTI Telehealth
(2007)For four years we have been iteratively evolving MUTI, a rural telehealth system, for hospitals and clinics in a remote rural part of the Eastern Cape in South Africa (Chetty, 2005; Chetty et al., 2003, 2004a; Maunder et ... -
Nafion-stabilised platinum nanoparticles supported on titanium nitride: An efficient and durable electrocatalyst for phosphoric acid based polymer electrolyte fuel cells
(Elsevier, 2013)Nafion derived platinum nanoparticles were produced and successfully anchored on titanium nitride (TiN) support (Pt/TiN) and its suitability for phosphoric acid based polymer electrolyte membrane fuel cells is reported. ... -
Nanomedicines for infectious diseases
(Springer Nature, 2019)Infectious diseases continue to pose a significant threat to global health. Over 200 infectious diseases are currently known to man. Fortunately, only a handful are responsible for significant morbidity and mortality. ... -
Nanoparticulate TiO2-promoted PtRu/C catalyst for methanol oxidation: TiO2 nanoparticles promoted PtRu/C catalyst for MOR
(Springer, 2013)To improve the electrocatalytic properties of PtRu/C in methanol electrooxidation, nanoparticulate TiO2-promoted PtRu/C catalysts were prepared by directly mixing TiO2 nanoparticles with PtRu/C. Using cyclic voltammetry, ... -
Nanostructured europium-doped layered lithium manganese oxide as a prospective cathode material for aqueous lithium-ion battery
(Elsevier, 2023)As the world moves to greener and renewable energy generation technologies, scientific researchers are facing a great challenge of concurrently developing energy storage materials with a low production cost, environmentally ... -
Nanostructured Mn-doped CeO2 thin films with enhanced electrochemical properties for pseudocapacitive applications
(Elsevier, 2021-06)Cerium oxides with variable oxidation states, high interfacial charge transfer rate have demonstrated to be a potential pseudocapacitive material. In this paper, we present the structural and electrochemical properties of ... -
Nanostructured silicon derived from an agricultural residue bagasse ash via magnesiothermic reduction method
(MDPI, 2023)This study presents the magnesiothermic reduction of silica into silicon. This reduction process occurs at a lower reaction temperature than its carbothermal counterpart. Furthermore, silica was extracted from sugarcane ... -
Nanotechnology advances towards development of targeted-treatment for obesity
(Journal of Nanobiotechnology, 2019)Obesity through its association with type 2 diabetes (T2D), cancer and cardiovascular diseases (CVDs), poses a serious health threat, as these diseases contribute to high mortality rates. Pharmacotherapy alone or in ... -
Nanotechnology-based delivery systems for antimicrobial peptides
(MDPI, 2021)Antimicrobial resistance (AMR) is a significant threat to global health. The conventional antibiotic pool has been depleted, forcing the investigation of novel and alternative antimicrobial strategies. Antimicrobial peptides ... -
Nanotechnology-based strategies for effective and rapid detection of sars-cov-2
(MDPI, 2021)The coronavirus disease 2019 (COVID-19) pandemic has gained worldwide attention and has prompted the development of innovative diagnostics, therapeutics, and vaccines to mitigate the pandemic. Diagnostic methods based ... -
Nanotechnology-based strategies for treatment of obesity, cancer and anti-microbial resistance: Highlights of the Department of Science and Innovation/mintek Nanotechnology Innovation centre biolabels research node at the University of the Western Cape
(MDPI, 2022)Nanotechnology has recently received much interest in various fields, including medicine. South Africa (SA) was the first country in Africa to adopt the technology with the aim of enhancing the national bio-economy and ...