Institutional Repository | North-West University | NWU: Recent submissions
Now showing items 21-40 of 27217
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Six new epibiotic Proschkinia (Bacillariophyta) species and new insights into the genus phylogeny
(Taylor & Francis, 2019)The diatom genus Proschkinia is a common element of biofilms covering diverse substrata in saline inland or shallow coastal environments. It can be distinguished from other naviculoid taxa by its lanceolate valves with a ... -
High genetic variation and phylogeographic relations among Palearctic fairy shrimp populations reflect persistence in multiple southern refugia during Pleistocene ice ages and postglacial colonisation
(Wiley, 2019)Intense anthropogenic disturbance threatens temporary pond ecosystems and their associated fauna across the Palearctic. Since fairy shrimps (Crustacea, Branchiopoda) are endemic to temporary ponds, populations are declining ... -
What can a comparative genomics approach tell us about the pathogenicity of mtDNA mutations in human populations?
(Wiley, 2019)Mitochondrial disorders are heterogeneous, showing variable presentation and penetrance. Over the last three decades, our ability to recognize mitochondrial patients and diagnose these mutations, linking genotype to ... -
Extraction of uranium from synthetic nuclear conversion plant waste
(Taylor & Francis, 2019)The nuclear conversion plant operated at Necsa in the past resulted in the formation of a large amount of waste material containing ~ 50% U, which has reuse potential if the recovery thereof can be achieved. The waste ... -
Suitability of wild host plants and firewood as hosts of Prostephanus truncatus (Coleoptera: Bostrichidae) in Mozambique
(Oxford Univ Press, 2019)Prostephanus truncatus (Horn) (Coleoptera: Bostrichidae) populations are maintained in wild host plants such as trees that act as pest reservoirs from where beetle infestation of maize granaries take place. In this study, ... -
New particle formation, growth and apparent shrinkage at a rural background site in western Saudi Arabia
(EGU, 2019)Atmospheric aerosols have significant effects on human health and the climate. A large fraction of these aerosols originates from secondary new particle formation (NPF), where atmospheric vapors form small particles that ... -
Tailor-made gold nanostar colorimetric detection determined by morphology change and used as an indirect approach by using hydrogen peroxide to determine glucose concentration
(Elsevier, 2019)Gold nanostars are being utilized more regularly in the field of nanodiagnostics. The modified seedless synthetic method comprised of 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid (HEPES) synthesized with the ... -
Heavy metal dissolution mechanisms from electrical industrial sludge
(Elsevier, 2019)In this paper, we investigate the release of heavy metals from sludge produced from an electrical industry using both organic and inorganic acids. Single and sequential extractions were conducted to assess heavy metals in ... -
Holistic, motivational life management in ageing : a gerontological-pastoral perspective
(2018)Gerontology is a well researched and established field, supported by participating sciences, namely the Biological and Health sciences, Psychology and the Social sciences. Although gerontological research indicates the ... -
The efficacy of the Emfuleni local municipality procurement system
(North-West University (South Africa). Vanderbijlpark, 2019)This study investigated the efficacy of the procurement system at Emfuleni Local Municipality (ELM) in Gauteng Province of South Africa. The study was influenced by procurement researches conducted by the World Bank, UN ... -
Benzo[b]tiophen-3-ol derivatives as effective inhibitors of human monoamine oxidase: design, synthesis, and biological activity
(Taylor & Francis, 2019)A series of benzo[b]thiophen-3-ols were synthesised and investigated as potential human monoamine oxidase (hMAO) inhibitors in vitro as well as ex vivo in rat cortex synaptosomes by means of evaluation of 3,4-dihydroxyphenylacetic ... -
Comparison of DOTA and NODAGA as chelates for 68Ga-labelled CDP1 as novel infection PET imaging agents
(Springer, 2019)The cathelicidin-derived peptide (CDP1) is a human antimicrobial peptide that preferentially targets bacterial membranes in response to infection. CDP1 was functionalised with NODAGA and DOTA for complexation with gallium-68 ... -
BRICS to BRICSCESS: a perspective for practical action in the promotion of healthy lifestyles to improve public health in five countries
(Elsevier, 2019)A brief historical summary of BRICS countries and the BRICS Council of Exercise and Sport Science (BRICSCESS) is presented. BRICSCESS functions to facilitate the accomplishment of the various tasks such as to establish ... -
Perceived stress, coping self-efficacy and adaptive coping strategies of South African teachers
(North-West University (South-Africa). Vanderbijlpark, 2019)In this Master’s study, the perceived stress of a group of Gauteng teachers, their sense of coping self-efficacy, and their adaptive coping strategies, specifically the statistical relationships between these variables, ... -
Prevalence and socio-behavioral factors associated with sugar-sweetened beverages consumption among 15 years and older persons in South Africa
(Dove Medical Press, 2019)Objective: The aim of this study was to assess the frequency of sugar-sweetened beverages (SSB) consumption and its relationship with socio-behavioral factors using national population-based data in South Africa. Subjects ... -
Optimizing observer performance of clinic blood pressure measurement: a position statement from the Lancet Commission on Hypertension Group
(Wolters Kluwer, 2019)High blood pressure (BP) is a highly prevalent modifiable cause of cardiovascular disease, stroke, and death. Accurate BP measurement is critical, given that a 5-mmHg measurement error may lead to incorrect hypertension ... -
Predictive model for fuels from hydrothermal liquefaction of municipal solid waste
(EUBCE, 2019)Effective management of the environmental impact of municipal solid waste (MSW) is a global issue linked to urbanization and a rapid increase in the global population. Although MSW has been evaluated as possible feedstock ... -
Valorisation of waste lignin for phenol derivative compounds using hydrothermal liquefaction
(EUBCE, 2019)Approximately 95% of global phenolic compounds (such as catechol, guaiacol, syringol, and vanillin) used in the pharmaceutical, fragrance and industrial industries are produced from petroleum-based phenolics such as benzene. ... -
Framework for effective additive manufacturing education at South African Universities
(North-West University (South Africa), 2019)Additive Manufacturing (AM) which is also known as 3D printing technology; is a process by which digital 3-dimensional data is used to build up components or parts layer upon layer by depositing material. Additive manufacturing ... -
Samestelling, Afleiding en Woordsoortelike Meerfunksionaliteit in Afrikaans
(Nasou Beperk, 1969)Hierdie bundel is 'n gewysigde en aangevulde herdruk van Woordvorming en Funksiewisseling in Afrikaans. Waar kritiek op foute en antler tekortkominge gewys het, is geprobeer om dit in hoe mate te verbeter. Daarmee word ...
