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Denke as krisisterrein in die verskynsel van kerkkrimping by tradisioneel afrikaanssprekende susterkerke
(AOSIS, 2013)Since little can be done, humanly speaking, to address the numerous factors influencing the decline of churches, it is obvious that everything humanly possible must be done. Thinking plays a major role in ecclesiology. ... -
Dense sampling of bird diversity increases power of comparative genomics
(Nature Research, 2020)Whole-genome sequencing projects are increasingly populating the tree of life and characterizing biodiversity1,2,3,4. Sparse taxon sampling has previously been proposed to confound phylogenetic inference5, and captures ... -
Density and speed of sound measurements of imidazolium-based ionic liquids with acetonitrile at various temperatures
(2014)In the present study, the interactions between acetonitrile and imidazolium-based ionic liquids (ILs) were discussed in terms of density (ρ) and speed of sound (u) measurements. The ILs used in this study were 1-ethyl-3- ... -
Density and speed of sound of 1-ethyl-3-methylimidazolium ethyl sulphate with acetic or propionic acid at different temperatures
(Elsevier, 2014)In this work, new density, ρ, and speed of sound, u, were measured for IL, acetic acid, propionic acid, and their binary systems {IL (x1) + acetic or propionic acid (x2)} at 293.15, 298.15, 303.15, 308.15 and 313.15 K under ... -
Density dependence and temporal plasticity of competitive interactions during utilisation of resources by a community of lepidopteran stemborer species
(Wiley, 2017)Interactions within and between species sharing the same resources are characterised by competition or facilitation, and can be influenced by factors such as larval numbers and phenotypic plasticity of the interactions. ... -
Density effects resulting from polymer bonded explosives pressing parameters
(North-West University (South Africa), 2020)Shaped charges are used when a focused force is required to penetrate a target. They have dominated the weaponry market in the recent past due to their ability to penetrate targets. Shaped charges have become more potent ... -
Density functional theory calculation of Ti3C2 MXene monolayer as catalytic support for platinum towards the dehydrogenation of methylcyclohexane
(Elsevier, 2020)The need for sustainable energy systems and reducing greenhouse gas emissions are key drivers in the development of liquid hydrogen organic carriers (LOHCs). Density functional theory calculations were performed on the ... -
Density functional theory molecular modelling and experimental particle kinetics for CO2-char gasification
(Elsevier, 2015)Experimental measurements and DFT atomistic modelling were conducted to elucidate the mechanisms for gasification chemistry of char with CO2 gas. The molecular models used were based on experimental representations of coal ... -
Density functional theory prediction of the aqueous speciation of ZrF4 and HfF4
(SAIMM, 2018)Computational chemistry was used to make predictions regarding the stepwise hydrolysis and fluoride dissociation reactions of ZrF4 and HfF4 in aqueous solutions. Specifically, density functional theory was used to predict ... -
Density functional theory studies of the SrC and SrN compounds
(Elsevier, 2019)The structural, magnetic, elastic, dynamical and thermodynamic properties of the SrC and SrN compounds were studied using density functional theory. We found that the CsCl and NaCl phases have the lowest energy configurations ... -
Density functional theory study with and without COSMO of H2SO4 reactions in an aqueous environment for metal extraction
(Wiley, 2019)In a recent study investigating the suitability of solvent extraction (SX) for the separation of Ta and Nb, it was shown that speciation data would be required to help explain the data obtained. As traditional speciation ... -
Density-dependent growth response and sensitivity of Meloidogyne incognita to Maerua angolensis and Tabernaemontana elegans: Card model
(Taylor & Francis, 2019)Curve-fitting Allelochemical Response Dosage (CARD) computer-based model has proven to be a valuable tool in the definition of dosage response relationships between organisms and various plant extracts. Its use in the ... -
Density-dependent spatial patterning of woody plants differs between a semi-arid and a mesic savanna in South Africa
(Elsevier, 2018)Savannas can be defined by the co-dominance of grasses and trees. Interactions between these two life forms are relatively well studied, whereas tree-tree interactions attracted increased attention only recently. However, ... -
A density-functional theory approach to the separation of K2ZrF6 and K2HfF6 via fractional crystallization
(Wiley, 2011)Because of the low absorption cross-section for thermal neutrons of zirconium (Zr) as opposed to hafnium (Hf), Zr-metal must essentially be Hf-free (<100 ppm Hf) to be suitable for use in nuclear reactors. However, Zr and ... -
Dentalisation as regional indicator in general South African English: an acoustic analysis of /z/, /d/ and /t/
(Taylor & Francis, 2011)Drawing on Bekker's (2007) study on the dentalisation of /s/ among young middle-class females from Johannesburg, this research aims to test whether the other traditionally alveolar oral obstruents, namely /z/, /d/ and /t/, ... -
The dependence between the gospels and pagan literature with regard to death and return; towards a method for evaluation
(North-West University, 2017) -
Dependence of cardiac systolic function on elevated fatty acid availability in obese, insulin-resistant rats
(Elsevier, 2016)Background Clinical data advocating an adverse effect of obesity on left ventricular (LV) systolic function independent of comorbidities is controversial. We hypothesized that in obesity with prediabetic insulin resistance, ... -
Dependence of natural fragmentation characteristics of a casing material on explosive parameters
(North-West University (South Africa), 2020)Since the prediction of warhead performance is crucial in the early stages of design and the scaling of this procedure is complex and expensive, it is beneficial to have measurable parameters in one optimal model to improve ... -
The dependence of optical polarisation of blazars on the synchrotron peak frequency
(PoS, 2017)The RoboPol instrument and the relevant program was developed in order to conduct a systematic study of the optical polarisation variability of blazars. Driven by the discovery that long smooth rotations of the optical ... -
Dependency on chloride concentration and ‘in-sphere’ oxidation of H2O for the effective TiO2-photocatalysed electron transfer from H2O to [PdCln(H2O)4−n]2−n (n = 0–4) in the absence of an added sacrificial reducing agent
(Elsevier, 2012)The photocatalytic reduction trends of palladium chloride aqua complexes, [PdCln(H2O)4−n]2−n (n = 0–4), have been investigated employing titanium dioxide (TiO2) as photocatalyst in the absence of an added sacrificial ...
