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Faculty of Science, Medicine and Health - Papers: part A

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The Use Of Remote Sensing To Scale Up Measures Of Carbonate Production On Reef Systems: A Comparison Of Hydrochemical And Census-Based Estimation Methods, Sarah Hamylton, Jacob Silverman, Emily Shaw Jan 2013

The Use Of Remote Sensing To Scale Up Measures Of Carbonate Production On Reef Systems: A Comparison Of Hydrochemical And Census-Based Estimation Methods, Sarah Hamylton, Jacob Silverman, Emily Shaw

Faculty of Science, Medicine and Health - Papers: part A

The present study uses remote-sensing imagery to estimate carbonate production of the complete One Tree Island reef system, Great Barrier Reef, using hydrochemical (alkalinity reduction) and census-based (budgetary) methods. For five sites representing different benthic cover types across the reef system, carbonate production is determined using hydrochemical techniques that incubate substrates in a local aquarium and measure total alkalinity, total ammonia nitrogen, and total oxidized nitrogen. Local estimates are scaled up to the reef-system scale using a WorldView-2 satellite image, which is ground truthed against a field data set of 350 spatially referenced records of benthic assemblage. Annual total reef …


Gifts, Sustainable Consumption And Giving Up Green Anxieties At Christmas, Carol Farbotko, Lesley Head Jan 2013

Gifts, Sustainable Consumption And Giving Up Green Anxieties At Christmas, Carol Farbotko, Lesley Head

Faculty of Science, Medicine and Health - Papers: part A

This paper explores the proposition that gifting is a little recognised yet important practice bound up in the quest for sustainable consumption, which has largely been studied with reference to market rather than gift economies. It draws on gift theories in economic anthropology which explain gifts as engendering social relations of reciprocity and beyond, and shaping social life differently to commodities. Understanding how and why commodities become gifts (and vice versa), we contend, provides a new way of understanding some of the complex ways in which social relations are implicated in sustainable consumption. We use a study of Christmas gifting …


'Redneck, Barbaric, Cashed Up Bogan? I Don't Think So': Hunting And Nature In Australia, Michael Adams Jan 2013

'Redneck, Barbaric, Cashed Up Bogan? I Don't Think So': Hunting And Nature In Australia, Michael Adams

Faculty of Science, Medicine and Health - Papers: part A

Hunting is a controversial activity in Australia, and much debated in international research. Positions range from 'the first hunters were the first humans' to the 'meat is murder' argument. There is, however, very little research on non-Indigenous hunting in Australia, particularly on the social aspects, but also on biological and ecological issues. In contrast to a general lack of research on non-Indigenous hunting, there is extensive literature on Indigenous hunting. This paper reviews initial research exploring hunting participation and motivation in Australia, as a window into further understanding connections between humans, non-humans and place. My focus is on an analysis …


Physical Activity, Change In Blood Pressure And Predictors Of Mortality In Older South Africans - A 2-Year Follow-Up Study, Karen E. Charlton, Estelle V. Lambert, Judith Kreft Jan 1997

Physical Activity, Change In Blood Pressure And Predictors Of Mortality In Older South Africans - A 2-Year Follow-Up Study, Karen E. Charlton, Estelle V. Lambert, Judith Kreft

Faculty of Science, Medicine and Health - Papers: part A

Objective. A 2-year follow-up study of a cohort of 200 historically disadvantaged older South Africans was conducted to: (i) characterise current levels of habitual physical activity; (ii) relate physical activity to current risk factors for chronic disease; and (iii) identify risk factors associated with 2-year mortaJity. The baseline sample, drawn in 1993, was found to have a high prevalence of hypertension (71.7%). Research design. Retrospective cohort study. Methods. A baseline sample of 200 persons aged ;:;.. 65 years, resident in the Cape Peninsula, was randomly drawn by means of a two-stage cluster design. Baseline measurements included: anthropometry, waist/hip ratio, systolic …