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Now showing items 11214-11233 of 35414
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Effect of temperature on development and reproduction of Spodoptera frugiperda (Lepidoptera: Noctuidae)
(North-West University, 2018)Spodoptera frugiperda (Lepidoptera: Noctuidae) is a polyphagous pest with a preference for crops which belong to the Poaceae family. Spodoptera frugiperda is native to the tropical and sub-tropical regions of South America ... -
The effect of temperature on Nysius natalensis Evans (Hemiptera: Orsillidae) development and survival
(Entomological Society of Southern Africa, 2011)The false chinch bug, Nysius natalensis Evans (Hemiptera: Orsillidae), is a pest of sunflower, Helianthus annuus L. (Asteraceae), in South Africa. Pest outbreaks usually occur in localized areas towards the end of the ... -
The effect of temperature on resistance in african rice (Oryza glaberrima steud.) genotypes to the rice rootknot nematode Meloidogyne graminicola
(Organization of Nematologists of Tropical America, 2016)The rice root-knot nematode, Meloidogyne graminicola, has emerged as a serious soilborne pathogen of rice in most Asian countries. The host response of the M. graminicola-resistant African (Oryza glaberrima) rice genotypes ... -
The effect of temperature on the development and reproduction of Busseola fusca (Lepidoptera: Noctuidae)
(North-West University, 2015)Busseola fusca is an indigenous lepidopteran pest species in tropical Africa, attacking several grain crops. Crop loss caused by this pest can be as high as 100% depending on conditions. Despite it being a major pest in ... -
The effect of temperature on the development and reproduction of Busseola fusca (Lepidoptera: Noctuidae)
(Cambridge Univ Press, 2017)The effect of temperature on the reproduction and development of Busseola fusca was studied under laboratory conditions. Single male–female pairs were confined to oviposition chambers kept at 15, 20, 26 and 30 ± 1°C and a ... -
Effect of temperature on the optical and structural properties of hexadecylamine capped ZnS nanoparticles using Zinc(II) N-ethyl-N-phenyldithiocarbamate as single source precursor
(Elsevier, 2012)Reported in this work is the synthesis of HDA (hexadecylamine)-capped ZnS nanoparticles by a single source route using Zinc(II) N-ethyl-N-phenyldithiocarbamate as a precursor. By varying the growth temperature, the ... -
Effect of temperature on the performance of Rheofloc: conductivity removal from RO-reject
(EARET, 2018)South Africa is an arid country with an annual average rainfall less than half of the world’s average rainfall. The industrial sector uses 11% of this limited amount of water. Eskom is one of these users. Within the ... -
The effect of temperature on the pH, d-lactate and haemocyanin oxygen affinity of Opistophthalmus latimanus (Koch) (Scorpionidae) heamolymph
(Entomological Society of Southern Africa, 2010) -
The effect of temperature on the respiration and metabolism of the African burrowing scorpion (Opistophthalmus latimanus)
(Elsevier, 2016)It is well known that scorpions are highly adapted to thermal temperatures. However, little is known of the metabolic and respiration adaptations caused by temperature fluctuations in these animals. Therefore we used ... -
The effect of ten years on the capacity component of the Water Poverty Index
(IBIMA, 2013)Water management has been carried out for many centuries wherever there has been a need to provide water to large numbers of people. Complex social norms have developed around water management and competing users have ... -
The effect of the adjuvant, Break-Thru S240, on whorl penetration and efficacy of foliar insecticide applications against Chilo partellus
(2009)Insecticide sprays registered for the control of maize stem borers are all intended for whorl application. Chemical control of these pests is complicated by their cryptic feeding habit inside plant whorls. The aim of this ... -
The effect of the adoption of International Financial Reporting Standards on foreign portfolio investment in Africa
(North-West University (South Africa), 2020)The goal of achieving a uniform high-quality international accounting standards for financial reporting started in the second half of the 20th Century. This idea became a reality in the year 2001, when the International ... -
The effect of the drug price intervention on retail pharmacies in South Africa
(North-West University, 2007)In May 2004 there was a shake-up in the private pharmaceutical industry in South Africa. The National Department of Health (DOH) introduced a form of price control which for the first time attempted to regulate prices at ... -
The effect of the financial crisis on credit scoring in the retail credit market in South Africa
(North-West University, 2011)This study follows a three–pronged approach to investigate the effects of the global financial crisis on the South African retail credit market (using Woolworths as subject). These three prongs, or areas, include a literature ... -
The effect of the glycaemic index of a pre-exercise meal on the glycaemic and insulin responses during acute exercise
(North-West University (South-Africa), 1999)Introduction : The objectives of this study were to examine the role of the glycaemic index of a pre-exercise meal, ingested 1 hour before an acute exercise test (15 -20 min), on the metabolic profile of elite athletes ... -
The effect of the growth spurt on strength, power, speed and agility training in boys during mid-adolescence
(North-West University (South Africa), Potchefstroom Campus, 2017)Four physical and motor fitness components are essential to excel in sport, namely muscle strength, speed, agility and explosive power. Size and performance differences which are associated with variation in biological ... -
The effect of the heliospheric current sheet on cosmic-ray modulation
(North-West University (South Africa), Potchefstroom Campus, 2015)The heliospheric current sheet is a dominant feature of the heliosphere. As solar activity increases, the tilt angle of the current sheet increases, and so does the region swept out by this structure, to cover most of ... -
The effect of the human relations and health maintenance components of the SAPS self-management programme
(North-West University, 2006)Background: The success achieved with the South-African Police Service’s generic Personnel Capacity-Building Programmes contributed to a 2003 decision by the National Commissioner that a similar type of intervention should ... -
The effect of the Lifeplan® programme on the psychological wellbeing of a rural community in South Africa
(Elliott & Fitzpatrick, 2011)This study explored the effect of the Lifeplan® programme on a rural South African community's psychological wellbeing. Participants were adult Individuals (N=99) between 20 and 83 years (mean age = 43 years, SD=13.28). A ... -
The effect of the Lifeplan® programme on the psychological well–being of a rural community in South Africa
(North-West University, 2010)This study explored the effect of the Lifeplan® programme, an Africa Unit for Transdisciplinary Health Research (AUTHeR) initiative, on the psychological well–being of the rural community of Taung, in the North West ...
