Browsing Faculty of Natural Sciences by Title
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Semantic interrogation of a multi knowledge domain ontological model of tendinopathy identifies four strong candidate risk genes
(Nature Research, 2016)Tendinopathy is a multifactorial syndrome characterised by tendon pain and thickening, and impaired performance during activity. Candidate gene association studies have identified genetic factors that contribute to ... -
Semi-analytic forecasts for jwst – ii. Physical properties and scaling relations for galaxies at z = 4–10
(Oxford academic, 2019)The long anticipated James Webb Space Telescope (JWST) will be able to directly detect large samples of galaxies at very high redshift. Using the well-established, computationally efficient Santa Cruz semi-analytic model, ... -
Semi-analytic forecasts for JWST – IV. Implications for cosmic reionization and LyC escape fraction
(Oxford University Press, 2020-06-20)Galaxies forming in low-mass haloes are thought to be primarily responsible for reionizing the Universe during the first billion years after the big bang. Yet, these haloes are extremely inefficient at forming stars in ... -
Semi-analytic forecasts for Roman – the beginning of a new era of deep-wide galaxy surveys
(Oxford University Press, 2023)The Nancy Grace Roman Space Telescope, NASA’s next flagship observatory, will redefine deep-field galaxy survey with a field of view two orders of magnitude larger than Hubble and an angular resolution of matching quality. ... -
Seminal oxidation–reduction potential levels are not influenced by the presence of leucocytospermia
(Wiley-Blackwell, 2020)Oxidative stress (OS) is characterised by an excessive amount of reactive oxygen species (ROS) which negatively affect sperm functions. In this study, the influence of leucocytes on seminal oxidation–reduction potential ... -
Semiquantitative promoter methylation of MLH1 and MSH2 genes and their impact on sperm DNA fragmentation and chromatin condensation in infertile men
(Blackwell Publishing Ltd, 2021)To investigate the semiquantitative methylation alterations of MLH1 and MSH2 and the possible association among methylation of MLH1 and MSH2, sperm DNA fragmentation and sperm chromatin condensation in idiopathic ... -
Sensitive electrochemical determination of ethambutol in pharmaceutical formulation and human urine at nickel nanoparticles/electrochemically reduced graphene oxide modified electrode
(Chemical Society of Ethiopia, 2019)This paper describes the application of nickel nanoparticles decorated electrochemically reduced graphene oxide modified glassy carbon electrode (NiNPs/ERGO/GCE) for the determination of ethambutol (ETB), an anti-Mycobacterium ... -
Separated and prime compactifications
(Elsevier BV, 2022)We discuss conditions under which certain compactifications of topological spaces can be obtained by composing the ultrafilter space monad with suitable reflectors. In particular, we show that these compactifications inherit ... -
Sequence analysis of an Archaeal virus isolated from a hypersaline lake in Inner Mongolia, China
(BioMed Central, 2007)Background: We are profoundly ignorant about the diversity of viruses that infect the domain Archaea. Less than 100 have been identified and described and very few of these have had their genomic sequences determined. ... -
Service learning in pharmacy: Implementation of tuberculosisscreening by second-year pharmacy studentsin primary health care facilitiesin Cape Town, South Africa
(FIP, 2021)The School of Pharmacy of the University of the Western Cape implemented a service learning programme where second year students participated in tuberculosis (TB) screening.To determine the views of students and nurses about ... -
Service learning in pharmacy: Opportunities for student learning and service delivery
(Academic Journals, 2011)High patient load and understaffing in public health care facilities preclude the provision of optimal pharmaceutical services in South Africa. A Service Learning in Pharmacy (SLIP) programme for the University of the ... -
Service-aware clustering: an energy-efficient model for the internet-of-things
(MDPI, 2016)Current generation wireless sensor routing algorithms and protocols have been designed based on a myopic routing approach, where the motes are assumed to have the same sensing and communication capabilities. Myopic routing ... -
Setting the baseline for the modelling of Kesterite solar cells: The case study of tandem application
(Elsevier, 2023)The Kesterite solar cells research landscape is at a crossroad and despite a much improved understanding of the limitations of this class of materials, the current performance deficit contrasts with the several other thin ... -
The Severe Acute Respiratory Syndrome Coronavirus 3a Protein Up-Regulates Expression of Fibrinogen in Lung Epithelial Cells
(American Society for Microbiology, 2005)Here we analyzed the gene expression profile of cells that stably express the severe acute respiratory syndrome coronavirus (SARS-CoV) 3a protein to determine its effects on host functions. A lung epithelial cell-line, ... -
Severe acute respiratory syndrome coronavirus protein 7a interacts with hSGT
(Elsevier, 2006)Severe acute respiratory syndrome coronavirus (SARS-CoV) 7a is an accessory protein with no known homologues. In this study, we report the interaction of a SARS-CoV 7a and small glutamine-rich tetratricopeptide repeat-containing ... -
Shale-gas potential from Cretaceous succession in South Africa’s orange basin: insights from integrated geochemical evaluations
(Taylor & Francis, 2022)Shale sediments were collected from four Cretaceous stratigraphic units across four explorations well locations in South Africa’s Orange Basin and analysed to determine organic-matter characteristics, such as amount, ... -
Sharing for science: High-resolution trophic interactions revealed rapidly by social media
(PeerJ, 2020)Discrete, ephemeral natural phenomena with low spatial or temporal predictability are incredibly challenging to study systematically. In ecology, species interactions, which constitute the functional backbone of ecological ... -
Shell-model studies of the astrophysical rp reaction 29P(p, y)30 S
(American Physical Society, 2013)We present results for levels in 30S (the mirror nucleus of 30Si) that are used for the 29P(p,γ ) rp reaction rate calculations. The resonance energies used in the reaction rate calculations are based on recent ... -
Short-period pulsating hot-subdwarf stars observed by TESS: I. Southern ecliptic hemisphere
(EDP Sciences, 2023)We present results of a Transiting Exoplanet Survey Satellite (TESS) search for short-period pulsations in compact stellar objects observed in years 1 and 3 of the TESS mission, during which the southern ecliptic hemisphere ... -
Significance levels of common frequencies extracted from multiple data sets
(Oxford University Press, 2020)Large monitoring campaigns, particularly those using multiple filters, have produced replicated time series of observations for literally millions of stars. The search for periodicities in such replicated data can be ...