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Now showing items 225-244 of 8066
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An ALMA survey of the SCUBA-2 CLS UDS field: Physical properties of 707 sub-millimetre galaxies
(Oxford University Press, 2020)We analyse the physical properties of a large, homogeneously selected sample of ALMA-located sub-millimetre galaxies (SMGs). This survey, AS2UDS, identified 707 SMGs across the ∼1 deg2 field, including ∼17 per cent, which ... -
An ALMA/NOEMA survey of the molecular gas properties of high-redshift star-forming galaxies
(Oxford University Press, 2021)We have used ALMA and NOEMA to study the molecular gas reservoirs in 61 ALMA-identified submillimetre galaxies (SMGs) in the COSMOS, UDS, and ECDFS fields. We detect 12CO (Jup = 2-5) emission lines in 50 sources, and [C ... -
Alpha-glucosidase and alpha-amylase inhibitory activities, molecular docking, and antioxidant capacities of plectranthus ecklonii constituents
(MDPI, 2022)Shortage in insulin secretion or degradation of produced insulin is the principal characteristic of the metabolic disorder of diabetes mellitus (DM). However, because the current medications for the treatment of DM have ... -
Alpha-glucosidase and alpha-amylase inhibitory activities, molecular docking, and antioxidant capacities of salvia aurita constituents
(MPDI, 2020)Diabetes mellitus (DM) is one of the most dangerous metabolic diseases with a high rate of mortality worldwide. It is well known that insulin resistance and deficiency in insulin production from pancreatic β-cells are the ... -
Alteration of Bax-to-Bcl-2 ratio modulates the anticancer activity of methanolic extract of Commelina benghalensis (Commelinaceae) in Jurkat T cells
(Academic Journals, 2008)Stem extracts of Commelina benghalensis (Linn.), although not extensively documented, are frequently used in traditional medicine for the treatment of ailments such as skin malformations and outgrowths. Accordingly, the ... -
Alternative definitions of informal sector employment in South Africa
(Stellenbosch University, 2008)Before the introduction of the Quarterly Labour Force Survey (QLFS) in 2008, Statistics South Africa (Stats SA) has been using the same methodology to derive the informal sector employment throughout the years, focusing ... -
Alternative food networks and food insecurity in South Africa
(Institute for Poverty, Land and Agrarian Studies, University of the Western Cape, 2016-06)Food security remains a persistent global challenge. Inequality means that food insecurity is disproportionately experienced. Despite positive shifts in the state of food security at a global scale, recent reports from ... -
Alternative medicine and herbal remedies in the treatment of erectile dysfunction: A systematic review
(Informa UK Limited, trading as Taylor & Francis Group., 2021)Objectives: To systematically review and discuss the current evidence from placebo-controlled clinical trials that investigated the use of alternative medicines and herbal remedies in the management of erectile dysfunction ... -
Alternative perspectives on orality, literacy and education: a view from South Africa.
(Routledge, 2001)The question of the 'great divide' between orality and literacy has been critically addressed by various scholars of literacy, including social literacy theorists. This paper uses the notions of primary and secondary ... -
Alternative sentencing in South Africa: an update
(Institute for Security Studies, 2005)With South Africa’s ever growing prison population, the hope is often expressed that non-custodial sentencing options or ‘alternative sentencing’ will relieve the overcrowding and its associated ills. The current situation ... -
The altitude of sprites observed over South Africa
(Academy of Science of South Africa, 2021)Sprites are mesospheric optical emissions that are mostly produced by large, positive cloud-to-ground lightning discharges. Sprites appear in different morphologies such as carrot, jellyfish and column, and are typically ... -
Alzheimer's disease: a nursing-perspective
(University of the Western Cape, 2007)INTRODUCTION: Alzheimer's disease presents a challenge for nursing, nurses, formal and informal carer's of person's with Alzheimer's disease. Theoretical knowledge provides insight and understanding into the bio-psycho-social ... -
Am I my brother’s keeper? on personal identity and responsibility
(Philosophical Society of Southern Africa, 2013)The psychological continuity theory of personal identity has recently been accused of not meeting what is claimed to be a fundamental requirement on theories of identity - to explain personal moral responsibility. Although ... -
The ambiguity of Johan Heyns: Sitting at Bavinck's left or right hand?
(SUN, 2013)Following some biographic introductory comments, the argument of this contribution proceeds in two steps. First, the distinction between Herman Bavinck's left and right hand is clarified, amongst others with reference ... -
The Ambivalence of Indianness in Ahmed Essop’s The Hajji and Other Stories
(2021)This article explores the ambivalence of Indianness in Ahmed Essop’s debut collection of short stories, The Hajji and Other Stories, 1978, against the contested discourse of the nation. The article is underpinned by ... -
An ambusher’s arsenal: chemical crypsis in the puff adder (Bitis arietans)
(The Royal Society, 2015)Ambush foragers use a hunting strategy that places them at risk of predation by both visual and olfaction-oriented predators. Resulting selective pressures have driven the evolution of impressive visual crypsis in many ... -
Amendements de la loi sur l’équité en matière d’emploi en Afrique du Sud : à côté de la cible !
(Open edition journals, 2023)En mai 2022, le Parlement sud-africain a « donné le feu vert » au Projet d’amendement de la loi sur l’équité en matière d’emploi B14B - 20202. Le Projet d’amendement des dispositions de la loi n°55 de 1998 sur l’équité en ... -
Amendment submission: National policy for beneficiary selection and land allocation
(Institute for Poverty, Land and Agrarian Studies, 2020-03-02)PLAAS has read and considered the implications of the National Policy for Beneficiary Selection and Land Allocation and submits the following comments and recommendations to the Director-General: Rural Development and Land Reform. -
Amino acids 1055 to 1192 in the S2 Region of severe acute respiratory syndrome Coronavirus S Protein induce neutralizing antibodies: Implications for the development of vaccines and antiviral agents
(American Society for Microbiology, 2005)The spike (S) protein of the severe acute respiratory syndrome coronavirus (SARS-CoV) interacts with cellular receptors to mediate membrane fusion, allowing viral entry into host cells; hence it is recognized as the primary ... -
Amorphous Pt@dCu/CNT catalyst for methanol elextrooxidation
(South African Chemical Institute (SACI), 2013)A multi-walled carbon nanotube-supported, Pt decorated nano-sized amorphous PdCu alloy cores (denoted as Pt@PdCu/CNT) catalyst with lower Pt loading is synthesized via a galvanic displacement reaction. The structure is ...