Browsing Research Output by Title
Now showing items 3864-3883 of 13384
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Effect of inverse Compton cooling on relativistic particles accelerated at shear boundary layers in relativistic jets
(Cambridge University Press, 2023)Abstract. Recent theoretical considerations and observational evidence evince the spine-sheath morphology of relativistic jets emitted from active galactic nuclei (AGNs) or gamma-ray bursts (GRBs). The resulting shear ... -
The effect of language identification accuracy on speech recognition accuracy of proper names
(Pattern Recognition Association of South Africa and Mechatronics International Conference, 2017)Utilising the known language of origin of a name can be useful when predicting the pronunciation of the name. When this language is not known, automatic language identification (LID) can be used to influence which ... -
Effect of leaders' length of involvement on perceived effectiveness of community development agent training programmes
(KRE Publishers, 2014)This study was designed to investigate the effect of community leaders' length of involvement in community development agent training programme. Two hundred and eighty eight community leaders were randomly selected to ... -
Effect of methyl substituent in pyridine on the spectral and thermal properties of pyridyl adducts of Zn(II) and Cd(II) dithiocarbamate
(Elsevier, 2013)Four novel pyridine and 2-methyl pyridine adducts of Zn(II) and Cd(II) N-methyl-N-phenyl dithiocarbamates, [Zn(mpdtc)2py], [Zn(mpdtc)2mpy], [Cd(mpdtc)2py2], and [Cd(mpdtc)2mpy] (mpdtc = N-methyl-Nphenyl dithiocarbamates, ... -
Effect of moisture content, temperature and exposure time on the physical stability of chitosan powder and tablets
(Taylor & Francis, 2014)Context: Chitosan does not rank highly regarding its employment as tablet filler due to certain limitations. Undesirable properties that limit its utilization as excipient in solid dosage forms include its hydration ... -
The effect of molar ratio and flow velocity on the surface area required for pertraction of a Zr/Hf mixture
(IOP, 2019)Zirconium (Zr) and hafnium (Hf) need to be separated before being used in nuclear applications. Equilibria data have shown that Hf can be selectively extracted over Zr from a sulphate medium using organophosphorus ... -
The effect of myalgic encephalomyelitis/ chronic fatigue syndrome (ME/CFS) severity on cellular bioenergetic function
(Public Library of Science, 2020)Myalgic encephalomyelitis/ Chronic fatigue syndrome (ME/CFS) has been associated with abnormalities in mitochondrial function. In this study we have analysed previous bioenergetics data in peripheral blood mononuclear cells ... -
Effect of nanoparticle metal composition: mono- and bimetallic gold/copper dendrimer stabilized nanoparticles as solvent-free styrene oxidation catalysts
(Springer, 2018)A range of mono- and bimetallic AumCun nanoparticles (NPs), with varying metal compositions, was prepared by using a third-generation diaminobutane poly(propylene imine) (G3 DAB-PPI) dendrimer, modified with alkyl chains, ... -
The effect of nest site orientation on the breeding success of blue swallows Hirundo atrocaerulea in South Africa
(Wiley, 2018)The globally threatened blue swallow Hirundo atrocaerulea, with <1500 pairs remaining, is an intra-African migrant, breeding in eight countries in East Africa and Southern Africa, with nonbreeding birds in four countries ... -
Effect of non‐surgical weight management on weight and glycaemic control in people with type 2 diabetes: a comparison of interventional and non‐interventional outcomes at 3 years
(Wiley, 2018)Aims To examine the long‐term effectiveness of lifestyle weight management interventions, recommended in clinical guidelines for patients with type 2 diabetes mellitus (T2DM) and obesity. Materials and methods Electronic ... -
Effect of operating parameters on hydrothermal liquefaction of sugarcane bagasse
(EARET, 2018)Hydrothermal liquefaction (HTL) is a thermochemical process that produces various products from lignocellulosic feedstocks. In this study sugar cane bagasse was used as feedstock for HTL. Experiments were carried out ... -
The effect of ozone and drought on the photosynthetic performance of canola
(Elsevier, 2018)Canola plants were fumigated in open-top chambers with ozone (O3) (120 ppb) under well-watered (WW) and water-stressed (WS) conditions for 4 weeks. Non-fumigated plants were also studied to facilitate comparison between ... -
Effect of ozone on photosynthesis and seed yield of sensitive (S156) and resistant (R123) Phaseolus VulgarisL. genotypes in open-top chambers
(Springer, 2013)Rising tropospheric ozone (O3) concentrations have been identified as a significant threat to crop production. In the present study two snap bean (Phaseolus vulgaris L.) genotypes with known difference in sensitivity to ... -
The effect of particle size on the rate and depth of moisture evaporation from coal stockpiles
(SAIMM, 2016)Excessive amounts of moisture in product coal can influence the efficiency of downstream utilization processes due to a decreased calorific value and handling problems. Stockpiles can be used to decrease the moisture content ... -
Effect of penetration modifiers on the dermal and transdermal delivery of drugs and cosmetic active ingredients
(Karger, 2008)In this study the effect of 2 penetration modifiers, dimethyl isosorbide (DMI) and diethylene glycol monoethyl ether (DGME) on the skin delivery of hydroquinone (HQ), salicylic acid (SA) and octadecenedioic acid (DIOIC) ... -
Effect of phosphorus and calcium supplementation on goat performance communally grazed in a semi-arid area of RSA
(WFL Publisher, 2017)This research was conducted at the Molelwane Farm, in the Department of Animal Health, North West University, Mafikeng Campus, North West Province, RSA. Mafikeng city is located at 25°52’S and 25°38’E. In this study, a ... -
Effect of pit-composting on root-knot nematode (Meloidogyne incognita and M. javanica) population densities and yield of tomato under field conditions
(Taylor & Francis, 2020)Soil amendments, constituting of various plant and animal sources, were evaluated in pits for their effects on Meloidogyne spp. infecting tomato in comparison to the synthetic nematicide fenamiphos and the untreated control. ... -
Effect of political risk shocks on tourism revenue in South Africa: time series analysis
(The Social Sciences Research Society, 2016)Although political risk has an impact on all types of businesses, political risk affects tourism business performance in terms of tourist arrivals and tourism revenue because tourists are very sensitive to political risk ... -
Effect of pre-treatment and preservation methods on the nutritional quality of bitter gourd leaves from two different sources
(Gaurav Society of Aric, 2017)The effects of pre-treatment and preservation methods on the mineral composition and nutritional quality of bitter gourd leaves harvested from the wild and around homestead were investigated. The pre-treatments consisted ...