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Now showing items 1155-1174 of 8066
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A comparison of Einstein-Boltzmann solvers for testing General Relativity
(American Physical Society, 2018)We compare Einstein-Boltzmann solvers that include modifications to General Relativity and find that, for a wide range of models and parameters, they agree to a high level of precision. We look at three general purpose codes ... -
A comparison of ensemble and deep learning algorithms to model groundwater levels in a data-scarce aquifer of Southern Africa
(MDPI, 2022)Machine learning and deep learning have demonstrated usefulness in modelling various groundwater phenomena. However, these techniques require large amounts of data to develop reliable models. In the Southern African ... -
Comparison of Hi and optical redshifts of galaxies - The impact of redshift uncertainties on spectral line stacking
(Oxford University Press, 2013)Accurate optical redshifts will be critical for spectral co-adding techniques used to extract detections from below the noise level in ongoing and upcoming surveys for Hi, which will extend our current understanding of ... -
A comparison of multi-phase magnetic field tracers in a high-galactic latitude region of the filamentary interstellar medium
(IOP Publishing, 2022)Understanding how the Galactic magnetic field threads the multiphase interstellar medium (ISM) remains a considerable challenge, as different magnetic field tracers probe dissimilar phases and field components. We search for ... -
Comparison of multifactor asset pricing models in the South African stock market [2000–2016]
(MDPI, 2023)The quest for parsimonious models has been a key objective in asset pricing. However, there appears to be no consensus on the most successful asset pricing strategy in the literature, especially for the South African ... -
Comparison of multifactor asset pricing models in the South African stock market [2000–2016]
(MDPI, 2023)first_pagesettingsOrder Article Reprints Open AccessFeature PaperArticle Comparison of Multifactor Asset Pricing Models in the South African Stock Market [2000–2016] by Lenia Mukoyi 1 andKanayo K. Ogujiuba 2,*ORCID 1 School ... -
Comparison of multifactor asset pricing models in the South African stock market [2000–2016]
(MDPI, 2023)The quest for parsimonious models has been a key objective in asset pricing. However, there appears to be no consensus on the most successful asset pricing strategy in the literature, especially for the South African Market. ... -
Comparison of multifactor asset pricing models in the South African stock market [2000–2016]
(MDPI, 2022)The quest for parsimonious models has been a key objective in asset pricing. However, there appears to be no consensus on the most successful asset pricing strategy in the literature, especially for the South African Market. ... -
Comparison of phenolic content and antioxidant activity for fermented and unfermented rooibos samples extracted with water and methanol
(MPDI, 2022)Rooibos is brewed from the medicinal plant Aspalathus linearis. It has a well-established wide spectrum of bio-activity properties, which in part may be attributed to the phenolic antioxidant power. The antioxidant ... -
Comparison of Support Interventions During a Blended Course for Educators from Urban and Rural Settings
(2015)This research focused on the design and delivery of a blended Professional Development (PD) Program for in-service teacher-educators from both urban and rural settings. The overall purpose of the PD Program was to enhance ... -
A comparison of susceptibility patterns of oral Candida isolates from South African and Cameroonian HIV- positive populations
(The International Association for Dental Research (IADR), 2012)METHOD: In this study, Candida isolates were collected from the oral mucosa of 128 South African and 126 Cameroonian HIV-positive patients, by scraping the mouths of consenting patients using sterile cotton swabs. Ethics ... -
The comparison of teen clubs vs. standard care on treatment outcomes for adolescents on antiretroviral therapy in Windhoek, Namibia
(Hindawi, 2020)Adolescents living with HIV (ALHIV) are challenged to adhere to antiretroviral therapy (ART) and achieve and maintain virologic suppression. Group-based adherence support interventions, such as adherence clubs, have been ... -
Comparison of the ability of anthropometric indices to predict the risk of diabetes mellitus in South African males: Sanhanes-1
(MDPI, 2022)This study aimed to assess the sensitivity of body mass index (BMI) to predict the risk of diabetes mellitus (DM) and whether waist circumference (WC), waist-to-hip (WHR) and waist-toheight (WHtR) ratios are better ... -
A comparison of the accuracy of two methods used by pre-doctoral students to measure vertical dimension
(Elsevier, 2004-01)Statement of problem. Measuring vertical dimension is a soft-tissue measurement. Therefore, inaccuracy may occur. Purpose. The purpose of this study is to compare the accuracy of the Willis gauge method with the ... -
A comparison of the bond strengths of microwave- and water bath-cured denture material.
(Elsevier, 1993-11)A comparison was made of the shear bond strengths between microwave-polymerized and conventional water bath-cured polymethyl methacrylate (PMMA) bonded to denture teeth. Four groups of 15 specimens were prepared and shear ... -
Comparison of the clinical abrasion resistance of six commercially available denture teeth.
(Elsevier, 1997-01)Purpose: Clinical abrasion of denture teeth has certain implications when dentures are worn in excess of the average useful lifetime. The purpose of this study was to evaluate clinical denture tooth wear over a period of ... -
A comparison of the dental age estimation methods of Phillips and Proffit in a sample of South African children
(The South African Dental Association, 2018)Introduction: Dental age is an indicator of the physiological maturity of growing children. Different methods for estimating the dental age in contrast to the chronological age have been proposed. Aims and objectives: The ... -
A comparison of the microstructures, thermal and mechanical properties of pressed and sintered TieCu, TieNi and TieCueNi alloys intended for dental applications
(Journal of Alloys and Compounds, 2020)The effect of Ni and Cu on the a/b phase transformation temperature, possible retention of the b-phase, and mechanical properties of Ti, Tie13Cu, Tie4.5Ni and Tie13Cue4.5Ni (compositions in wt. %) alloys were investigated. ... -
Comparison of the prevalence of overweight and obesity in 9-13 year-old children from two countries using CDC and IOTF reference charts
(Science Alert, 2018)Background and Objectives: The epidemic of obesity is frequently prevailing, certainly among pediatric inhabitants and could be influenced by environmental and heritable factors. So, the aim of this study was to compare ... -
A comparison of the relationship between parental efficacy and social support systems of single teen mothers across different family forms in South African low socioeconomic communities
(BCM, 2021)Teenage parenting is recognised as one of the greatest health and social problems in South Africa. Research in South Africa has shown that by the age of 18 years, more than 30% of teens have given birth at least once. Teen ...