Browsing Faculty of Natural and Agricultural Sciences by Title
Now showing items 1676-1695 of 4825
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Experimental infection of small ruminants with bluetongue virus expressing Toggenburg Orbivirus proteins
(Elsevier, 2016)Bluetongue virus (BTV) is the prototype orbivirus (Reoviridae family, genus Orbivirus) consisting of more than 24 recognized serotypes or neutralization groups. Recently, new BTV serotypes in goats have been found; serotype ... -
Experimental rodent models of type 2 diabetes: a review
(Thomson Reuters, 2009)Due to the high prevalence of diabetes worldwide, extensive research is still being performed to develop new antidiabetic agents and determine their mechanisms of action. Consequently, a number of diabetic animal models ... -
Experimental, DFT and kinetic study of 1-octene metathesis with Hoveyda-Grubbs second generation precatalyst
(Elsevier, 2012)In this study we report the catalytic performance, reaction engineering kinetics and elucidation of the reaction mechanism using density functional theory (DFT) for the metathesis reaction of 1-octene in the presence of ... -
Experimental, quantum chemical and molecular dynamic simulations studies on the corrosion inhibition of mild steel by some carbazole derivatives
(Nature Publishing GroupNature Publishing Group, 2017)Five selected carbazole derivatives, namely carbazole, 3,6-dibromocarbazole, 2-hydroxycarbazole, 1,2,3,4-tetrahydrocarbazole and 9-(2-ethylhexyl)carbazole-3,6-dicarboxaldehyde were investigated for their inhibitive effects ... -
Experimental, quantum chemical and Monte Carlo simulation studies of 3,5-disubstituted-4-amino-1,2,4-triazoles as corrosion inhibitors on mild steel in acidic medium
(Elsevier, 2016)The inhibition properties of two 3,5-bis (disubstituted)-4-amino-1, 2,4-triazole derivatives, namely 3,5-bis(4-methoxyphenyl)-4-amino-1,2,4-triazole (T1) and 3,5-bis(4-chlorophenyl)-4-amino-1,2,4-triazole (T2) were ... -
Experimental, quantum chemical and Monte Carlo simulation studies on the corrosion inhibition of some alkyl imidazolium ionic liquids containing tetrafluoroborate anion on mild steel in acidic medium
(Elsevier Science Bv, 2015)The inhibition of mild steel corrosion in 1 M HCl solution by some imidazolium-based ionic liquids (ILs), namely 1-ethyl-3-methylimidazolium tetrafluoroborate [EMIM]?[BF?]?, 1-butyl-2,3-dimethylimidazolium tetrafluoroborate ... -
Experiments to improve forecasting accuracy of regression models with minimal assumptions
(ORLab Analytics, 2010)The forecasting accuracy of a regression model relies heavily on the applicability of the assumptions made by the model builder. In addition, the presence of outliers may also lead to models that are not reliable and thus ... -
Exploiting high-energy polarization in blazars
(Sissa Medialab, 2018)The spectral energy distributions (SEDs) and variability of astrophysical sources can be modeled in many different ways, in particular, the production of X-rays and γ-rays in the SEDs of blazars. High-energy polarimetry ... -
Exploiting morphological data from Pulsar Wind Nebulae via a spatiotemporal leptonic transport code
(Oxford Univ Press, 2020)The next era of ground-based Cherenkov telescope development will see a great increase in both quantity and quality of γ-ray morphological data. This initiated the development of a spatiotemporal leptonic transport code ... -
An exploration of cultural beliefs and practices across the Southern Ground-Hornbill’s range in Africa
(BioMed Central, 2014)Background This article explores cultural beliefs and practices related to the Southern Ground-Hornbill (SGH) (Bucorvus leadbeateri) in nine southern and east-African countries. Methods A qualitative, thematic ... -
An exploration of social systems as informative for urban regeneration in Potchefstroom Central Business District
(AJOL, 2015)The future of cities undoubtedly spells change on many levels due to urban growth. One of the mechanisms used in cities to cope with change is urban regeneration. Urban regeneration has mainly been addressed through ... -
An exploratory study of some of the determinants of managements succession planning in family businesses
(Southern African Institute for Management Scientists, 2009)This study highlights the importance of management succession planning in small and medium-sized family businesses. The primary objective of this study is twofold : firstly to identify the potential influence of selected ... -
Exploring a SNR/molecular cloud association within HESS J1745-303
(EDP Sciences, 2008)Aims. HESS J1745−303 is an extended, unidentified VHE (very high energy) gamma-ray source discovered using HESS in the Galactic Plane Survey. Since no obvious counterpart has previously been found in longer-wavelength ... -
Exploring contingent convertible bond alternatives for African banks
(AOSIS, 2018)Background: A variant of the contingent convertible bond, first proposed in 2011, is investigated: the Call Option Enhanced Reverse Convertible (COERC). Although issued as a bond, it converts to new shareholder’s equity ... -
Exploring levels of egg parasitism and variation in egg cuticular chemistry in different Clavigralla spp.
(Wiley, 2019)Clavigralla spp. (Hemiptera: Coreidae) are major pests of cowpea (Vigna unguiculata (L.) Walp, Fabacae), common bean (Phaseolus vulgaris L., Fabacae) and pigeon pea (Cajanus cajan L., Fabacae) in Africa. Clavigralla spp. ... -
Exploring place-making in the Vredefort Dome, South Africa : a mixed-method approach
(Department of Urban and Regional Planning, University of the Free State, 2009) -
Exploring pluralism: different stakeholder views of the expected and realised value of strategic environmental assessment (SEA)
(Elsevier, 2018)This paper explores the concept of pluralism by evaluating different stakeholder views on the expected and realised value of strategic environmental assessment (SEA). The research followed a single embedded case study ... -
Exploring rain forest diversification using demographic model testing in the African foam‐nest treefrog Chiromantis rufescens
(Wiley, 2019)Aim Species with wide distributions spanning the African Guinean and Congolian rain forests are often composed of genetically distinct populations or cryptic species with geographic distributions that mirror the locations ... -
Exploring resilience in nurses caring for older persons
(Elsevier, 2017)Background A shortage of nurses caring for older persons is experienced due to adverse working conditions. Resilience might empower nurses to persevere while caring for older persons. Research regarding the resilience of ...