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Categories of Human Risk Factors Which Impact on the Psychological Fitness of Construction Workers: A Review of the Evidence
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Larisa Alet Louw --- University of South Africa, Pieter Schaap --- University of Pretoria,This systematic review sought to identify and examine the evidence on human factors which impact on the psychological fitness of construction workers. Studies were reviewed spanning the period from 1966 to 2012. Database searches included 135 ScienceDirect and EBSCOHost sources,... -
Ideals in Heyting Semilattices and Open Homomorphisms
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Jorge Picado Aleš Pultr Anna TozziSubfitness and its relation to openness and completeness is studied in the context of Heyting semilattices. A formally weaker condition (c-subfitness) is shown to be necessary and sufficient for openness and completeness to coincide. For a large class of spatial... -
Effect of water trophic level on the impact of the water hyacinth moth Niphograpta albiguttalis on Eichhornia crassipes
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: K Canavan --- Department of Zoology and Entomology, South Africa JA Coetzee --- Department of Zoology and Entomology, South Africa MP Hill --- Department of Zoology and Entomology, South Africa ID Paterson --- Department of Zoology and Entomology, South AfricaEutrophication contributes to the proliferation of alien invasive weed species such as water hyacinth Eichhornia crassipes. Although the South American moth Niphograpta albiguttalis was released in South Africa in 1990 as a biological control agent against water hyacinth, no post-release... -
Physical activity knowledge, attitudes and practices of the elderly in Bloemfontein old age homes
Item type: Journal Article • Journal: South African Family Practice • Authors: PE Pienaar --- School of Medicine, South Africa M De Swardt --- School of Medicine, South Africa M De Vries --- School of Medicine, South Africa H Roos --- School of Medicine, South Africa G Joubert --- School of Medicine, South AfricaBackground: The aim of this study was to describe physical activity knowledge, attitudes and practices of the elderly in Bloemfontein old age homes. -
Relationships between overweight, obesity and physical fitness of nine- to twelve-year-old South African children
Item type: Journal Article • Journal: South African Family Practice • Authors: L Truter --- School of Biokinetics, Recreation and Sport Science, North West University, Potchefstroom Campus, South Africa AE Pienaar --- School of Biokinetics, Recreation and Sport Science, North West University, Potchefstroom Campus, South Africa D Du Toit --- School of Education, North West University, Potchefstroom Campus, South AfricaBackground: -
The correlation between the health-related fitness of healthy participants measured at home as opposed to fitness measured by sport scientists in a laboratory
Item type: Journal Article • Journal: South African Family Practice • Authors: CC Grant --- Department of Sports Medicine, South Africa DC Janse van Rensburg --- Department of Sports Medicine, South Africa MS Pepper --- Department of Immunology, South Africa PJ du Toit --- Department of Physiology, South Africa PS Wood --- Department of Biokinetics, Sport and Leisure Sciences, South Africa J Ker --- Department of Sports Medicine, South Africa PE Krüger --- Institute for Sport Research, South Africa CW Grobbelaar --- Department of Physiology, South Africa K Nolte --- Department of Biokinetics, Sport and Leisure Sciences, South Africa F Fletcher --- Department of Statistics, South Africa TC Grant --- Department of Sports Medicine, South AfricaBackground: Fitness is defined in the health context as a state of good health or physical condition, primarily as a result of exercise and proper nutrition. Conventional methods of measuring fitness are expensive, time consuming and require specialised methods. There... -
Reproductive partitioning among polyandrous alpha and beta pale chanting-goshawk males
Item type: Journal Article • Journal: African Zoology • Authors: Gerard Malan --- Percy FitzPatrick Institute, University of Cape Town, South AfricaThis study investigates the reproductive and parental roles of polyandrous male pale chanting-goshawks, Melierax canorus, and speculatively reviews the fitness outcomes of different skew and relatedness scenarios. The study was conducted over five years in the Little Karoo, South Africa... -
Can behaviour buffer the impacts of climate change on an arid-zone bird?
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Susan J Cunningham --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South Africa Rowan O Martin --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South Africa Philip AR Hockey --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South AfricaBehavioural thermoregulation, particularly the use of cool microclimates, is one method by which organisms could avoid the worst effects of climate warming. However, retreat into cool microsites, e.g. shady vegetation or burrows, may carry important lost-opportunity costs. These could include... -
Ecosystem-specific water quality indices
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: I Rangeti --- Department of Community Health Studies, South Africa B Dzwairo --- Institute for Water and Wastewater Technology, South Africa GJ Barratt --- Department of Community Health Studies, South Africa FAO Otieno --- Technology, Innovation and Partnerships, South AfricaThe water quality index (WQI) has emerged as a central tool for analysing and reporting quality trends since 1965. It provides a better overview of water quality variability in a catchment than conventional monitoring programmes that use individual variables. Since... -
Fitness for purpose in anaesthesiology: a review
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Nicola Kalafatis --- Department of Anesthesiology and Critical Care, Nelson R Mandela School of Medicine, South Africa Thomas Sommerville --- Department of Anesthesiology and Critical Care, Nelson R Mandela School of Medicine, South Africa Pragasan Dean Gopalan --- Department of Anesthesiology and Critical Care, Nelson R Mandela School of Medicine, South AfricaThe purpose of this review is to explore how fitness for purpose can be defined for anaesthesiology graduates and to delineate the parameters of this concept for anaesthesiology. Newly qualified anaesthesiology graduates experience difficulties with the transition from trainee to... -
Some properties of conjunctivity (subfitness) in generalized settings
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: M. Andrew Moshier --- CECAT, Chapman University, USA Jorge Picado --- University of Coimbra, Portugal Aleš Pultr --- Charles University, Czech RepublicThe property of subfitness used in point-free topology (roughly speaking) to replace the slightly stronger T 1-separation, appeared (as disjunctivity) already in the pioneering Wallman’s [16], then practically disappeared to reappear again (conjunctivity, subfitness), until it was in the recent...