Browsing Faculty of Natural Sciences by Title
Now showing items 1971-1990 of 2571
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Real-time assessment of interspecies candida biofilm formation
(Bentham Open, 2022-12-30)Background: Candida infections are responsible for increased morbidity and mortality in immunocompromised patients, with Candida having the ability to form highly structured biofilms that protect them from the external ... -
Real-time gesture recognition using eigenvectors
(2009)This paper discusses an implementation for gesture recognition using eigenvectors under controlled conditions. This application of eigenvector recognition is trained on a set of defined hand images. Training images are ... -
Reasons for missed appointments linked to a public-sector intervention targeting patients with stable chronic conditions in South Africa: results from in-depth interviews and a retrospective review of medical records
(BioMed Central, 2017)BACKGROUND Missed appointments serve as a key indicator for adherence to therapy and as such, identifying patient reasons for this inconsistency could assist in developing programmes to improve health outcomes. In this ... -
Recalibrating the Wide-field Infrared Survey Explorer (WISE) W4 Filter
(Cambridge University Press, 2014)We present a revised effective wavelength and photometric calibration for the Wide-field Infrared Survey Explorer W4 band, including tests of empirically motivated modifications to its pre-launch laboratory-measured ... -
Recent advancements in the breeding of sorghum crop: current status and future strategies for marker-assisted breeding
(Frontiers, 2023)Sorghum is emerging as a model crop for functional genetics and genomics of tropical grasses with abundant uses, including food, feed, and fuel, among others. It is currently the fifth most significant primary cereal crop. ... -
Recent advances in the detection of interferon‑gamma as a TB biomarker
(Springer, 2021)Tuberculosis (TB) is one of the main infectious diseases worldwide and accounts for many deaths. It is caused by Mycobacterium tuberculosis usually afecting the lungs of patients. Early diagnosis and treatment are essential ... -
Recent Advances in the Development of Antimicrobial and Antifouling Biocompatible Materials for Dental Applications
(MDPI, 2021)The risk of secondary bacterial infections resulting from dental procedures has driven the design of antimicrobial and antifouling dental materials to curb pathogenic microbial growth, biofilm formation and subsequent ... -
Reconstructing drainage pathways in the North Atlantic during the Triassic utilizing heavy minerals, mineral chemistry, and detrital zircon geochronology
(Geological Society of America, 2021)In this study, single-grain mineral geochemistry, detrital zircon geochronology, and conventional heavy-mineral analysis are used to elucidate sediment transport pathways that existed in the North Atlantic region during ... -
Reconstructing the deep-branching relationships of the papilionoid legumes
(Elsevier, 2013)Resolving the phylogenetic relationships of the deep nodes of papilionoid legumes (Papilionoideae) is essential to understanding the evolutionary history and diversification of this economically and ecologically important ... -
Reconstruction of dark energy and expansion dynamics using Gaussian processes
(IOP Publishing, 2012)An important issue in cosmology is reconstructing the effective dark energy equation of state directly from observations. With few physically motivated models, future dark energy studies cannot only be based on constraining ... -
Reconstruction of major maternal and paternal lineages of the Cape Muslim population
(Sociedade Brasileira de Genética, 2013)The earliest Cape Muslims were brought to the Cape (Cape Town - South Africa) from Africa and Asia from 1652 to 1834. They were part of an involuntary migration of slaves, political prisoners and convicts, and they ... -
Record linkage for routinely collected health data in an African health information exchange
(Swansea University, 2023)The Patient Master Index (PMI) plays an important role in management of patient information and epidemiological research, and the availability of unique patient identifiers improves the accuracy when linking patient ... -
Records of ctenophores from South Africa
(PeerJ, 2021)Although ctenophores can be conspicuous components of the plankton in coastal marine ecosystems, only six species have been formally described from around South Africa. Using photographs from local community scientists, ... -
Records of ctenophores from South Africa
(PeerJ Inc., 2021)Although ctenophores can be conspicuous components of the plankton in coastal marine ecosystems, only six species have been formally described from around South Africa. Using photographs from local community scientists, ... -
Recovery and recycling of valuable metals from spent lithium-ion batteries: A comprehensive review and analysis
(MDPI, 2023)The recycling of spent lithium-ion batteries (Li-ion Batteries) has drawn a lot of interest in recent years in response to the rising demand for the corresponding high-value metals and materials and the mounting concern ... -
Recursion relations for gravitational lensing
(Springer Nature, 2019)The weak gravitational lensing formalism can be extended to the strong lensing regime by integrating a nonlinear version of the geodesic deviation equation. The resulting ‘roulette’ expansion generalises the notion of ... -
Redshift evolution of galaxy group X-ray properties in the SIMBA simulations
(Oxford University Press, 2023)We examine the evolution of intragroup gas rest-frame X-ray scaling relations for group-sized haloes (M500 = 1012.3–1015 M) in the SIMBA galaxy formation simulation. X-ray luminosity LX versus M500 shows increasing deviation ... -
The redshift evolution of the baryonic Tully-Fisher relation in SIMBA
(Oxford university press, 2021)The baryonic Tully–Fisher relation (BTFR) is an important tool for constraining galaxy evolution models. As 21-cm HI emission studies have been largely restricted to low redshifts, the redshift evolution of the BTFR is ... -
Reef benthos of Seychelles - A field guide
(Pensoft Publishers, 2021)During the 2019 First Descent: Seychelles Expedition, shallow and deep reef ecosystems of the Seychelles Outer Islands were studied by deploying a variety of underwater technologies to survey their benthic flora and fauna. ... -
Refinement of locality data for FitzSimons’ Garter Snake Elapsoidea sundevallii fitzsimonsi Loveridge, 1948 provides a better estimation of its distribution
(Herpetology Notes, 2020)Foundational data on species taxonomy, distribution and ecology forms the basis of assessing species for their conservation status. For African reptiles, distributional data are sorely lacking for many taxa, sometimes ...