Research Output: Recent submissions
Now showing items 21-40 of 11732
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Mitochondrial complex activity in permeabilised cells of chronic fatigue syndrome patients using two cell types
(Tomas, 2019)Abnormalities in mitochondrial function have previously been shown in chronic fatigue syndrome (CFS) patients, implying that mitochondrial dysfunction may contribute to the pathogenesis of disease. This study builds on ... -
A new species of Cheyletus Latreille (Prostigmata: Cheyletidae) from Iran and a key to the Iranian species
(Acarologia, 2018)A new species, Cheyletus rashtiensis n. sp. (Acariformes: Prostigmata: Cheyletidae) is described on the basis of adult females from Rasht, Guilan Province, Northern Iran. The new species can be distinguished from other ... -
Small ideas for big impacts: multifunctionality in the rural village of Verkykerskop
(UOVS, 2018)Nijkamp affirms the Utopians’ claim of an open and flexible future, where development could imply surprising steps towards something better. Castells questions admonishingly whether planning approaches are changeable in a ... -
Editorial. Special issue on goodness of fit (GOF)
(Springer, 2018)This number of TEST exceptionally contains a selection of papers presented at the 2nd Workshop on Goodness-of-Fit and Change-Point problems held at the National and Kapodistrian University of Athens (NKUA), 4–6 September ... -
Fungi associated with disease and weevil damage of Amaranthus cruentus in South Africa
(Entomological Society of Southern Africa, 2018)Agronomic trials were conducted in central SouthAfrica to establish Amaranthus cruentus as a commercial grain crop. Knowledge of potential pest- and pathogen-related problems that might arise during cultivation is essential ... -
The 1H-NMR-based metabolite profile of acute alcohol consumption: a metabolomics intervention study
(PLoS, 2018)Metabolomics studies of disease conditions related to chronic alcohol consumption provide compelling evidence of several perturbed metabolic pathways underlying the pathophysiology of alcoholism. The objective of the present ... -
Miniaturized 1H-NMR method for analyzing limited-quantity samples applied to a mouse model of Leigh disease
(Springer, 2018)Introduction The analysis of limited-quantity samples remains a challenge associated with mouse models, especially for multi-platform metabolomics studies. Although inherently insensitive, the highly specific characteristics ... -
Special issue with papers from the “3rd workshop on Goodness-of-fit and change-point problems”
(Springer, 2018)This special issue of METRIKA contains mainly a collection of papers presented at the 3rd Workshop on Goodness-of-Fit and Change-Point problems, which was supported by the German Research Foundation (DFG), and was held at ... -
Extending risk budgeting for market regimes and quantile factor models
(Infopro Digital Risk, 2018)We combine several disparate avenues in the literature to create a novel, unified risk- based optimization framework. Specifically, we extend an existing risk-budgeting approach to allow for changing market regimes and ... -
FACTSAGE™ thermo-equilibrium simulations of mineral transformations in coal combustion ash
(SAIMM, 2018)The aim of this investigation is to report on the influence of operating conditions, and of additives such as potassium carbonate, on the slagging behaviour of South African coal. This was done using a FACTSAGE™ model that ... -
Conceptual use of vortex technologies for syngas purification and separation in UCG applications
(SAIMM, 2018)Syngas from Africary's Theunissen underground coal gasification (UCG) project will be used for power production and synthesis of liquid fuels and commodity chemicals. However, some of the coal components, especially ... -
SAUCGA: the potential, role, and development of underground coal gasification in South Africa
(SAIMM, 2018)This paper offers an introduction to and strategic context for the other papers included in this special UCG edition of the Journal of the Southern African Institute of Mining and Metallurgy. South Africa is facing long-term ... -
Metastability of the boron-vacancy complex in silicon: insights from hybrid functional calculations
(De Gruyter, 2018)Using four distinct configurations of the boron-vacancy (BV) complex in silicon, we investigate the experimentally observed defect metastability of the BV complex in silicon using the HSE06 hybrid functional within the ... -
Steady-state and transient modelling of a microchannel reactor for coupled ammonia decomposition and oxidation
(Elsevier, 2019)A computational fluid dynamic (CFD) model was developed to describe the transient and steady-state behavior of NH3 decomposition in an experimental autothermal microchannel reactor. The effects of NH3 decomposition and NH3 ... -
Solar energetic particle propagation in wave turbulence and the possibility of wave generation
(IOP Publishing, 2019)A complete theory for the complex interaction between solar energetic particles (SEPs) and the turbulent interplanetary magnetic field remains elusive. In this work we aim to contribute to such a theory by modeling the ... -
The implications of simple estimates of the 2D outerscale based on measurements of magnetic islands for the modulation of galactic cosmic-ray electrons
(IOP Publishing, 2019)The behavior of the 2D turbulence power spectrum at the lowest wavenumbers has a significant effect on the perpendicular diffusion coefficients of charged particles in the heliosphere derived from various scattering theories, ... -
Modeling of heliospheric modulation of cosmic-ray positrons in a very quiet heliosphere
(IOP Publishing, 2019)Heliospheric modulation conditions were unusually quiet during the last solar minimum activity between solar cycles 23 and 24. Fortunately, the PAMELA space experiment measured 6 month–averaged Galactic positron spectra ... -
Performances of anion-exchange blend membranes on vanadium redox flow batteries
(MDPI, 2019)Anion exchange blend membranes (AEBMs) were prepared for use in Vanadium Redox Flow Batteries (VRFBs). These AEBMs consisted of 3 polymer components. Firstly, PBI-OO (nonfluorinated PBI) or F6-PBI (partially fluorinated ... -
Recycling pre-oxidized chromite fines in the oxidative sintered pellet production process
(SAIMM, 2019)The chromium (Cr) content of stainless steel originates from recycled scrap and/or ferrochrome (FeCr), which is produced mainly by the carbothermic reduction of chromite ore. The oxidative sintered pellet production process ... -
Classification of the Eastern Scarp Forests
(Springer, 2018)This chapter brings the first comprehensive classification of the Eastern Scarp Forest. These are very fragmented and relictual forests, structurally complex, rich in tropical elements as well as species of conservation ...