Browsing Faculty of Natural and Agricultural Sciences by Title
Now showing items 859-878 of 4822
-
Consumers’ knowledge of food label information: an exploratory investigation in Potchefstroom, South Africa
(Cambridge University Press, 2012)Objective To determine the ability of consumers to: locate and manipulate food label information; assess the accuracy of nutrient content claims and which health/nutrient claims are allowed; and identify symbols on food ... -
Consumers’ preferences for private and national brand food products
(Wiley, 2012)Consumers' choice of private brands reflects distinct differences in terms of product categories, and indications are that demographic and psychographic factors are also influential in terms of the sales of private vs. ... -
Consumers’ Preferences for Various Private Label and National Brand Food Products at Different Retailers in Potchefstroom, South Africa
(Springer, 2014)Theoretically, private labels should benefit lower income consumers by saving them money. South Africa is an emerging country with high unemployment rates where consumers could benefit from purchasing value for money private ... -
Contamination by neonicotinoid insecticides and their metabolites in Sri Lankan black tea leaves and Japanese green tea leaves
(Elsevier, 2018)Tea is one of the world’s most popular beverages due to health promoting effects. Despite these, there have been concerns about the adverse effects of tea contamination by neonicotinoid insecticides. Only a handful of ... -
Contamination status and accumulation characteristics of heavy metals and arsenic in five seabird species from the central Bering Sea
(Japanese Society of Veterinary Science, 2017)Seabirds are marine top predators and accumulate high levels of metals and metalloids in their tissues. Contamination by metals in the highly productive offshore region has become a matter of public concern. It is home ... -
Context-dependent modelling of English vowels in Sepedi code-switched speech
(Pattern recognition association of South Africa (PRASA), 2012)When modelling code-switched speech (utterances that contain a mixture of languages), the embedded language often contains phones not found in the matrix language. These are typically dealt with by either extending the ... -
Continuous adaptation through genetic communication: a putative role for cell-free DNA
(Taylor & Francis, 2012)Introduction: The virtosome fraction of cell-free DNA, being newly synthesised, capable of horizontal gene transfer (HGT) and subsequent genomic incorporation and expression, may play crucial roles in the biological functions ... -
The continuous depolymerization of filled polytetrafluoroethylene with a continuous process
(Wiley, 2008)A new method for beneficiating unfilled as well as filled polytetrafluoroethylene (PTFE) waste has been developed. This process does not use any carrier gas while forming the depolymerization products. It enables polymer ... -
Contraction intensity and sex differences in knee-extensor fatigability
(Elsevier, 2017)Females are less fatigable than males during isometric contractions across various muscles and intensities. However, sex differences in knee-extensor fatigability remain relatively unexplored. Purpose: To determine the sex ... -
Contrasting impacts of cultivated exotics on the functional diversity of domestic gardens in three regions with different aridity
(Springer, 2020)Cultivated exotic plants are often introduced for their aesthetic value and today comprise a substantial fraction of the flora of urban domestic gardens. Yet, their relative contribution to the functional diversity of ... -
Contrasting indoor and ambient particulate matter concentrations and thermal comfort in coal and non-coal burning households at South Africa Highveld
(Elsevier, 2020)One of the key challenges noted in the sustainable development goals for good health and wellbeing (SDGs 3) is both ambient and household air pollution. Household solid fuel combustion represents one of the biggest threat ... -
The contribution of geography to Environmental Assessment (EA) practice and research in South Africa
(Taylor & Francis, 2016)After 100 years of academic Geography in South Africa, the emerging field of Environmental Assessment (EA) has occupied an important position vis-a-vis Geography. In this paper the contribution of Geography to practice and ... -
The contribution of millisecond pulsars to the Galactic cosmic-ray lepton spectrum
(Elsevier, 2015)Pulsars are believed to be sources of relativistic electrons and positrons. The abundance of detections of γγ-ray millisecond pulsars by Fermi Large Area Telescope coupled with their light curve characteristics that imply ... -
The contribution of physical and chemical sediment characteristics to environmental risk from an irrigation scheme in South Africa
(Springer, 2015)Purpose: The physical and chemical characteristics of sediment from a South African irrigation scheme were used to determine the sediment stressors within the system and to determine whether or not stressors have the ... -
The contribution of the C-824T tyrosine hydroxylase polymorphism to the prevalence of hypertension in a South African cohort: the SABPA study
(Taylor & Francis, 2013)The C-824T single nucleotide polymorphism in the promoter region of the tyrosine hydroxylase gene has been associated with hypertension. It is well documented that African South Africans exhibit a higher prevalence of ... -
A contribution to the conceptualisation of quality in impact assessment
(Elsevier, 2018)Quality is much sought after in, and a basic foundation for, good impact assessment (IA). However, the term is rarely defined, has an uncertain relationship with IA effectiveness, and it means different things to different ... -
A contribution to the knowledge of cheyletid mites of Iran with redescription of Eucheyletia flabellifera (Michael, 1878) (Prostigmata: Cheyletidae)
(Acarologia, 2018)The cheyletid mites collected from Guilan province in Northern Iran were investigated. A total of 16 species were determined. Of these, Eucheyletia flabellifera (Michael, 1878) is a new record for the Iranian cheyletid ... -
Contribution to the knowledge of the oribatid mite family Nesozetidae (Acari, Oribatida)
(Magnolia Press, 2017)A new oribatid mite species of the genus Nesozetes (Oribatida, Nesozetidae) is described from moss (Sphagnum sp.) on the seepage area below a permanent spring in South Africa. Nesozetes membranus sp. nov. differs from its ...