Academic Articles & Research Papers

Tourism SMMEs Recovery from COVID-19: A Case of SMMEs in the City of Polokwane, Limpopo province, South Africa

The tourism industry is dependent on travel and factors that inhibits travel, including pandemics such as COVID-19, may have a profound impact on the industry. Although the precise scope and long-term effects of COVID-19 have not yet been...

Trans-ethnic meta-analysis identifies new loci associated with longitudinal blood pressure traits

Abstract Genome-wide association studies (GWAS) have identified thousands of genetic loci associated with cross-sectional blood pressure (BP) traits; however, GWAS based on longitudinal BP have been underexplored. We performed ethnic-specif...

On the unstable mode merging of gravity-inertial waves with Rossby waves

We recapitulate the results of the combined theory of gravity-inertial-Rossby waves in a rotating, stratified atmosphere. The system is shown to exhibit a "local" (JWKB) instability whenever the phase speed of the low-frequency-long wave...

Multimodel GCM-RCM Ensemble-Based Projections of Temperature and Precipitation over West Africa for the Early 21st Century

Reliable climate change scenarios are critical for West Africa, whose economy relies mostly on agriculture and, in this regard, multimodel ensembles are believed to provide the most robust climate change information. Toward this end, we ana...

Geochemical balance of the mineral fraction and statistical analyzes of the Ebolowa municipal lake’s sediments (central Africa): Implication for early diagenesis process

The Ebolowa Municipal Lake (EML) (South Cameroon) in order to identify the early diagenesis processes taking place in the lake and the factors influencing them. To this end, 21 samples were collected. In situ, hydrogen potential, redox pote...

First Report of Insect Species Associated With Domesticated African Baobab (Adansonia digitata L.) in Ghana

The African baobab (Adansonia digitata L.) is a priority Pan-African tree species. Insect pests that are associated with and damage domesticated baobab are largely unknown in the production areas of baobab. To identify and document insect p...

Impacts of land use and cover changes on ecosystem service values from 1992 to 2052 in Gena District, Southwest Ethiopia

Land use and cover changes alter the functions and structures of ecosystem, resulting in variations in Ecosystem Service Values (ESVs). Thus, we examined the impacts of land use/land cover (LULC) changes on ESVs from 1992 to 2052 using geos...

A pilot study of mitochondrial genomic ancestry in admixed Brazilian patients with type 1 diabetes

Abstract Interactions between multiple genes and environmental factors could be related to the pathogenesis of type 1 diabetes (T1D). The Brazilian population results from different historical miscegenation events, resulting in a highly div...

Impact of <i>Chlorella vulgaris</i> Bioremediation and Selenium on Genotoxicity, Nephrotoxicity and Oxidative/Antioxidant Imbalance Induced by Polystyrene Nanoplastics in African Catfish (<i>Clarias gariepinus</i>)

Contamination of the environment with nano- and microplastic particles exerts a threatening impact on the aquatic ecosystems and sustainable catfish aquaculture. The presence of nanoplastics has been found to have a detrimental impact on bo...

Group-format, peer-facilitated mental health promotion interventions for students in higher education settings: a scoping review protocol

Introduction Young people in higher education face various stressors that can make them vulnerable to mental ill-health. Mental health promotion in this group therefore has important potential benefits. Peer-facilitated and group-format int...

Comparative study of strongly and weakly coupled data assimilation with a global land–atmosphere coupled model

This study explores coupled land–atmosphere data assimilation (DA) for improving weather and hydrological forecasts by assimilating soil moisture (SM) data. This study integrates a land DA component into a global atmospheric DA system of th...

Evidence for health effects of early life exposure to indoor air pollutants: what we know and what can be done

On mathematical modeling of fractional-order stochastic for tuberculosis transmission dynamics

Tuberculosis remains one of the most dangerous diseases globally and has affected many people in Sub-Saharan Africa. In this paper, a fractional stochastic model of tuberculosis disease was formulated and analyzed. The existence and uniquen...

A History of Mathematics: An Introduction

Part I. Ancient Mathematics 1. Egypt and Mesopotamia 1.1 Egypt 1.2 Mesopotamia 2. The Beginnings of Mathematics in Greece 2.1 The Earliest Greek Mathematics 2.2 The Time of Plato 2.3 Aristotle 3. Euclid 3.1 Introduction to the Elements 3.2 ...

Changing Movements in a Changing World: Modelling Early Pleistocene and Early Middle Pleistocene Climatic and Ecological Environments and Influences on Hominin Dispersal in Eurasia

In a world of drastic climatic and ecological changes, our knowledge of how the environment influenced hominin behaviour is of the utmost importance. Archaeology plays a key role in this domain, as it is the only discipline that studies emp...

Consistencies far beyond chance: an analysis of learner preconceptions of reflective symmetry

This article reports on regularities observed in learners' preconceptions of reflective symmetry. Literature suggests that the very existence of such regularities indicates a gap between what learners know and what they need to know. Such a...

Health technology for equitable access to quality health services

Health technology (HT) is an important part of health systems, the acquisition, assessment, management and costs of which have brought about increasing challenges in delivery of healthcare services. In order to address the high levels and w...

Demographic changes and the need for health technology

Discussion focusses on recent trends in demand, giving consideration to how these trends might change between now and the end of the century. Attention is directed to the UK, but to put the situation in perspective a brief review of the wor...

Professionalising health technology assessment in South Africa

Health technology encompasses interventions developed to prevent, diagnose or treat medical conditions; promote health; provide rehabilitation or organise healthcare delivery. The intervention can be a test, device, medicine, vaccine, proce...

What could Paul have meant by ‘against nature’ (παρὰ φύσιν) as written in Romans 1:26? Striving for the well-being and health of all people

The point of departure of this article is postmodern philosopher Michel Foucault’s ‘archaeological analysis’ of the history of sexuality, seen from the lens of the South African philosopher Johann Beukes. Foucault points out that since the ...