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Now showing items 2072-2091 of 7880
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Einstein's legacy in galaxy surveys
(Oxford University Press, 2015)Non-Gaussianity in the primordial fluctuations that seeded structure formation produces a signal in the galaxy power spectrum on very large scales. This signal contains vital information about the primordial Universe, but ... -
eLearning Colloquia enhance a Community of Practice : Reflections
(2018)In this context specific reflection on an annual eLearning Colloquia hosted by the Centre for Innovative Education and Communication Technologies (CIECT) at the University of the Western Cape (UWC), in Cape Town, South ... -
Electing councillors: A guide to municipal elections
(University of the Western Cape, 2016)The electoral system for local government combines ward elections with proportional representation. It is regulated in at least four different statutes, the Electoral Act 73 of 1998, the Local Government: Municipal Structures ... -
The election result and its implications for political party configuration
(Sabinet, 2004)As a competition for both popular support and political office, Election 2004 deepened the dominant-party system in South Africa. In terms of support, the African National Congress (ANC) did better than ever. Indeed, its ... -
Electrocatalytic sensor devices: (I) cyclopentadienylnickel(II) thiolato Schiff base monolayer self-assembled on gold
(Elsevier, 2004)The fabrication of a self-assembled monolayer (SAM) of a cyclopentadienylnickel(II) thiolato Schiff base compound, [Ni(SC6H4NC(H)C6H4 OCH2CH2SMe)( 5-C5H5)]2 on a gold electrode is described. Effective electronic communication ... -
Electrochemical analysis of architecturally enhanced LiFe0.5Mn0.5PO4 multiwalled carbon nanotube composite
(Hindawi, 2021)In this work, the effect of carbon on the electrochemical properties of multiwalled carbon nanotube (MWCNT) functionalized lithium iron manganese phosphate was studied. In an attempt to provide insight into the structural ... -
Electrochemical aptasensor for endocrine disrupting 17β-estradiol based on a poly(3,4-ethylenedioxylthiopene)-gold nanocomposite platform
(MDPI, 2010)A simple and highly sensitive electrochemical DNA aptasensor with high affinity for endocrine disrupting 17β-estradiol, was developed. Poly(3,4-ethylenedioxylthiophene) (PEDOT) doped with gold nanoparticles (AuNPs) was ... -
Electrochemical Aptatoxisensor Responses on Nanocomposites containing electro-deposited silver nanoparticles on poly(propyleneimine) dendrimer for the detection of microcystin-lr in freshwater
(MDPI, 2016)A sensitive and reagentless electrochemical aptatoxisensor was developed on cobalt (II) salicylaldiimine metallodendrimer (SDD-Co(II)) doped with electro-synthesized silver nanoparticles (AgNPs) for microcystin-LR (L, ... -
Electrochemical determination of hydrogen peroxide by a nonenzymatic catalytically enhanced silver-iron (iii) oxide/polyoxometalate/reduced graphene oxide modified glassy carbon electrode
(Taylor & Francis, 2020)The synergism of phosphomolybdic acid hydrate (POM) decorated with silver-iron (III) oxide (Ag-Fe2O3) nanoparticles and anchored on reduced graphene oxide (RGO) have been demonstrated to be effective as a nonenzymatic H2O2 ... -
Electrochemical determination of phenothrin in fruit juices at graphene oxide-polypyrrole modified glassy carbon electrode
(Elsevier, 2018)An electrochemical sensor was developed based on graphen oxide-polypyrrole modified glassy carbon electrode (GO/PPy/GCE) for sensitive determination of phenothrin in fruit samples. GO/PPy/GCE was characterized by scanning ... -
An electrochemical DNA biosensor developed on a nanocomposite platform of gold and poly(propyleneimine) dendrimer
(MDPI, 2008)An electrochemical DNA nanobiosensor was prepared by immobilization of a 20mer thiolated probe DNA on electro-deposited generation 4 (G4) poly(propyleneimine) dendrimer (PPI) doped with gold nanoparticles (AuNP) as ... -
Electrochemical immunosensor based on polythionine/gold nanoparticles for the determination of Aflatoxin B1
(MDPI, 2008)An aflatoxin B1 (AFB1) electrochemical immunosensor was developed by the immobilisation of aflatoxin B1-bovine serum albumin (AFB1-BSA) conjugate on a polythionine (PTH)/gold nanoparticles (AuNP)-modified glassy carbon ... -
Electrochemical interrogation of g3-poly(propylene thiophenoimine) dendritic star polymer in phenanthrene sensing
(MDPI, 2015)A novel dendritic star-copolymer, generation 3 poly(propylene thiophenoimine) (G3PPT)-co-poly(3-hexylthiophene) (P3HT) star co-polymer on gold electrode (i.e., Au|G3PPT-co-P3HT) was used as a sensor system for the ... -
Electrochemical performance of zinc carbodiimides based porous nanocomposites as supercapacitors
(Elsevier, 2021)The low energy densities of supercapacitors are generally limited by the used anodes. To develop supercapacitors with high energy densities, metal–organic framework (TRD-ZIF-8) derived honeycomb-like porous zinc carbodiimide ... -
Electrochemical studies of Pd-based anode catalysts in alkaline medium for direct glycerol fuel cells
(MDPI, 2020)his study investigates the most effective electrocatalyst for glycerol oxidation reaction (GOR) in alkaline medium for five synthesized electrocatalysts, Pd, PdNi, PdNiO, PdMn3O4 and PdMn3O4NiO, supported on multi-walled ... -
An electrochemically active green synthesized polycrystalline NiO/MgO catalyst: Use in photo-catalytic applications
(Elsevier, 2018)For many years, research scientists have aided communities in their tremendous efforts towards environmental remediation. Due to their high physical and chemical stability, metal oxide nanoparticles (NPs) have been used as ... -
Electrochemically reduced graphene oxide pencil-graphite in situ plated bismuth-film electrode for the determination of trace metals by anodic stripping voltammetry
(ESG, 2014)An electrochemical platform was developed based on a pencil-graphite electrode (PGE) modified with electrochemically reduced graphene oxide (ERGO) sheets and in conjunction with an in situ plated bismuth-film (ERGO-PG-BiE). ... -
Electrochemiluminescence at 3D Printed Titanium Electrodes
(Frontiers Media SA, 2021)The fabrication and electrochemical properties of a 3D printed titanium electrode array are described. The array comprises 25 round cylinders (0.015 cm radius, 0.3 cm high) that are evenly separated on a 0.48 × 0.48 cm ... -
Electrodeposited CuO thin film for wide linear range photoelectrochemical glucose sensing
(Elsevier, 2022)Cupric oxide (CuO) has been used as a non-enzymatic glucose sensor for decades. However, there is a paucity of publications on bare CuO based photo electrochemical (PEC) glucose detection. In this study, a photo active ... -
Electronic health record (ehr) adoption in South African healthcare centres: a case of NW province
(University of the Western Cape, 2019)Electronic Health Records (EHRs) enable the healthcare sector to enjoy increased efficiency and throughput, whilst cutting overhead costs in healthcare centres. The aim of this study was to investigate the adoption of ...