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Now showing items 3147-3166 of 35418
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Biology and ecology of Ceratitis rosa and Ceratitis quilicii (Diptera: Tephritidae) in citrus
(North-West University (South Africa), 2020)Ceratitis rosa Karsch s. l. (Diptera: Tephritidae), an indigenous pest of commercial fruit including citrus in South Africa, belongs to a complex of cryptic species (Ceratitis FAR). Ceratitis rosa s.l. was recently split ... -
Biology and ecology of fishes of the Senqu River, Lesotho
(North-West University (South Africa), Potchefstroom Campus, 2015)In this study, fish were used as bio-indicators to evaluate the present ecological state (PES) in different reaches of the Senqu River downstream of the proposed Polihali Dam in Lesotho. However, information regarding fish ... -
The biology and ecology of Mussidia spp. (Lepidoptera : Pyralidae) and associated natural enemies in Kenya
(North-West University, 2009)Mussidia nigrivenella Ragonot (Lepidoptera: Pyralidae), an important pest of maize, cotton and Phaseolus bean in West Africa, has never been described as a crop pest from East and southern Africa (ESA). It was hypothesized ... -
Biology and germination characteristics of Urochloa mosambicensis and Urochloa panicoides
(North-West University, 2018)Urochloa mosambicensis and U. panicoides are morphologically very closely related species. The correct identification of these species is often very difficult especially for maize producers because of the lack in knowledge ... -
Biology and performance of two indigenous larval parasitoids on Tuta absoluta (Lepidoptera: Gelechiidae) in Sudan
(Taylor & Francis, 2018)Tuta absoluta is an alien invasive pest in Sudan. Since it was detected in the country, the pest continues to cause major tomato losses. Alarmed by its devastating nature and the speed of spread, tomato growers resorted ... -
The biology of homosexuality and its implications for human rights in South Africa.
(LexisNexus, 2009) -
Biomarker responses in the freshwater shrimp Caridina nilotica as indicators of persistent pollutant exposure
(Springer, 2020)Biomarkers are applied as early warning indicators of organisms’ exposure to pollutants. The aim of this study was to utilise a multi-biomarker approach in the freshwater shrimp Caridina nilotica (Decapoda: Atyidae) as ... -
Biomarkers in tigerfish (Hydrocynus vittatus) as indicators of metal and organic pollution in ecologically sensitive subtropical rivers
(Elsevier, 2018)Studies have shown high levels of contamination of both metals and organochlorine pesticides (OCPs) in aquatic systems of the world renowned Kruger National Park, South Africa. With effects evident in top predators, ... -
Biomarkers of nutrition for development—iodine review1-4
(American Society for Nutrition, 2014)The objective of the Biomarkers of Nutrition for Development (BOND) project is to provide state-of-the-art information and service with regard to selection, use, and interpretation of biomarkers of nutrient exposure, status, ... -
Biomass conversion into biofuels by non–classical methods
(North-West University, 2011)This investigation was launched in view of two imminent needs in industry today, viz. development of an alternative fuel to replace rapidly dwindling fossil fuel resources, preferably by biomass conversion, and production ... -
Biomechanical benefits of symmetrical strengthening of hip extensors among athletes: a review
(LAM Publications Limited, 2016)There is abundant literature encouraging athletes to engage in concurrent strength training. However, little emphasis is placed on the value of biomechanics with regard to symmetrical strengthening of force-couple ... -
Biomechanical, anthropometrical and physical profile of the North-West University Club netball players and the relationship to musculoskeletal injuries
(North-West University, 2008)Background: Netball is a physically demanding game and is associated with traumatic and overuse injuries, and it is therefore associated with high injury incidences (Hopper, 1986; Eggar, 1990). Literature indicates that ... -
The biomechanical, anthropometrical, physical, motor and injury epidemiological profile of elite under 19 rugby players
(North-West University, 2006)Background: The multiplicities of factors, which may contribute to injury from sporting activity, and the complexity of the relations among them, indicate that identifying causal mechanisms poses a challenge to epidemiologists. ... -
Biometric-based Voters Identity Management to Combat Impersonation Vulnerability for A Credible E-Voting Process in Nigeria
(North-West University (South Africa), 2015)Today, democracy has become a de facto standard of every form of government in the world, nations and organizations. People are given the power to vote for candidates of their choice to represent them in offices. These ... -
Biometrology guidelines for the in vivo assessment of skin surface pH in nonclinical settings
(Springer, 2017)Skin surface pH plays an important role in the maintenance of skin barrier integrity and epidermal homeostasis. In workplace environments, myriad exposures may alter the skin surface pH and influence development of skin ... -
Biometrology guidelines for the in vivo assessment of transepidermal water loss and skin hydration in nonclinical settings
(Springer, 2017)It is becoming evident that assessment of skin exposure to physical and chemical stressors in workplaces should be accompanied by the assessment of skin barrier function at the time of exposure. “Real-life” occupational ... -
Biomimetic Cu/Nitroxyl catalyst systems for selective alcohol oxidation
(MDPI, 2019)The oxidation of alcohols to the corresponding carbonyl products is an important organic transformation and the products are used in a variety of applications. The development of catalytic methods for selective alcohol ... -
Bioprospecting for cellulase enzymes of Soil-Borne Bacteria for possible application into Bioethanol production
(North-West University (South Africa), 2016)Rising crude oil prices and strict emission standards have prompted a global demand for alternative fuels that are able to reduce the consumption of fossil resources, improve energy security and mitigate climate change. ...