Browsing Faculty of Natural Sciences by Title
Now showing items 1858-1877 of 2571
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Predicting the neutral hydrogen content of galaxies from optical data using machine learning
(Oxford University Press, 2018)We develop a machine learning-based framework to predict the Hi content of galaxies using more straightforwardly observable quantities such as optical photometry and environmental parameters. We train the algorithm on z ... -
Prediction of human-Bacillus anthracis protein–protein interactions using multi-layer neural network
(Oxford University Press, 2018)Triplet amino acids have successfully been included in feature selection to predict human-HPV protein-protein interactions (PPI). The utility of supervised learning methods is curtailed due to experimental data not being ... -
Prediction of Wetland Hydrogeomorphic Type Using Morphometrics and Landscape Characteristics
(Frontiers Media S.A., 2021)Accurate spatial maps of wetlands are critical for regional conservation and rehabilitation assessments, yet this often remains an elusive target. Such maps ideally provide information on wetland occurrence and extent, ... -
Predictive classifier models built from natural products with antimalarial bioactivity using machine learning approach
(Public Library of Science, 2018)In view of the vast number of natural products with potential antiplasmodial bioactivity and cost of conducting antiplasmodial bioactivity assays, it may be judicious to learn from previous antiplasmodial bioassays and ... -
Predictors of multiple injuries in individual distance runners: A retrospective study of 75,401 entrants in 4 annual races- safer xxx
(Elsevier, 2022)There are limited data on factors that predict an increased risk of multiple injuries among distance runners. The objective of this study was to determine risk factors that are predictive of individual runners with a high ... -
Predominant atmospheric and oceanic patterns during coastal marine heatwaves
(Frontiers Media, 2017)As the mean temperatures of the worlds oceans increase, it is predicted that marine heatwaves (MHWs) will occur more frequently and with increased severity. However, it has been shown that variables other than increases ... -
Preface Metamorphism and Orogenic belts—response from micro- to macro-scale
(Springerlink, 2019)The geological toolbox for the analysis of orogenic processes has seen substantial additions over the recent decades. Major advances have been made in the ability to simulate geological conditions and processes by computer ... -
The preferentially magnified active nucleus in IRAS F10214+4724 - III. VLBI observations of the radio core
(Oxford University Press, 2013)We report 1.7GHz very long baseline interferometry (VLBI) observations of IRAS F10214+4724, a lensed z = 2.3 obscured quasar with prodigious star formation. We detect what we argue to be the obscured active nucleus with ... -
A preliminary study of a graphene fractal sierpinski antenna
(Institute of Physics Publishing, 2020)We provide a preliminary study of a Graphene fractal antenna operating at THz frequencies with the opportunity to modulate the emission. There are many advantages of the fractal design, namely multiband/wideband ability, ... -
Preliminary study on the effect of sugar cane (Saccharum officinarum) molasses on steroidogenesis in testicular cell cultures
(Academic Journals, 2010)Blackstrap molasses has been used for centuries in the preparation of food products and have also been used to treat numerous ailments such as high blood pressure, arthritis, ulcers, dermatitits, eczema, constipation, ... -
Preparation and evaluation of pralidoxime-loaded plga nanoparticles as potential carriers of the drug across the blood brain barrier
(Hindawi, 2015)Pralidoxime is an organophosphate antidote with poor central nervous system distribution due to a high polarity. In the present study, pralidoxime-loaded poly(lactic-co-glycolic acid) nanoparticles were prepared and ... -
Preparation of Deaf end-users and the softbridge for semi-automated relay trials
(Telkom, 2004)Following on the development of several prototypes, we have built a semi-automated Deaf Telephony prototype on the SoftBridge platform. This prototype relays text and speech between Deaf users on the Internet and hearing ... -
Preparation of iron molybdate catalysts for methanol to formaldehyde oxidation based on ammonium molybdoferrate(II) precursor
(Elsevier, 2016)It was demonstrated that iron molybdate catalysts for methanol oxidation can be prepared using Fe(II) as a precursor instead of Fe(III). This would allow for reduction of acidity of preparation solutions as well as ... -
Prerace medical screening and education reduce medical encounters in distance road races: SAFER VIII study in 153 208 race starters
(BMJ Publishing Group, 2018)OBJECTIVES To examine the efficacy and feasibility of an online prerace medical screening and educational intervention programme for reducing medical complications in long-distance races. METHODS This was an 8-year ... -
Preservation of shortening velocity and power output in single muscle fibres from patients with idiopathic inflammatory myopathies
(Springer, 2022)Idiopathic inflammatory myopathies (IIMs) are autoimmune disorders of skeletal muscle causing weakness and disability. Utilizing single fibre contractility studies, we have previously shown that contractility is affected ... -
Prevalence of hypertension and its associated risk factors in a rural black population of Mthatha town,South Africa
(MPDI, 2021)The occurrence of hypertension has been increasing alarmingly in both low and middle-income countries. Despite acknowledging hypertension as the most common life-threatening risk factor for cardiovascular disease (CVD), a ... -
Prevalence, patterns and determinants of dyslipidaemia among South African adults with comorbidities
(Nature Research, 2022)The present study assessed the prevalence, patterns and determinants of dyslipidaemia among South African adults with multi-morbidities. In this study, 614 individuals with DM and hypertension were recruited. Dyslipidaemia ... -
Prioritization of anti-malarial hits from nature: Chemo-informatic profiling of natural products with in vitro antiplasmodial activities and currently registered anti-malarial drugs
(BMC, 2016)A large number of natural products have shown in vitro antiplasmodial activities. Early identification and prioritization of these natural products with potential for novel mechanism of action, desirable pharmacokinetics ... -
Prioritization of candidate genes for a South African family with Parkinson’s disease using in-silico tools
(Public Library of Science, 2021)Parkinson's disease (PD) is a neurodegenerative disorder exhibiting Mendelian inheritance in some families. Next-generation sequencing approaches, including whole exome sequencing (WES), have revolutionized the field of ... -
Probabilistic learning for pulsar classification
(IOP Publishing, 2022)In this work, we explore the possibility of using probabilistic learning to identify pulsar candidates. We make use of Deep Gaussian Process (DGP) and Deep Kernel Learning (DKL). Trained on a balanced training set in ...