4582 research outputs found
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Reliability of the 5-min psychomotor vigilance task in a primary school classroom setting
No full textThis study evaluated the reliability of the 5-min psychomotor vigilance task (PVT) in a single-sex Australian primary school. Seventy-five male students (mean age = 11.82 years, SD = 1.12) completed two 5-min PVTs using a Palm personal digital assistant (PDA) in (1) an isolated setting and (2) a classroom setting. Of this group of students, a subsample of 37 students completed a test–retest reliability trial within the classroom setting. Using a mixed-model analysis, there was no significant difference in the mean response time (RT) or number of lapses (RTs ≥ 500 msec) between the isolated and the classroom setting. There was, however, an order effect for the number of lapses in the isolated setting, with the number of lapses being greater if the isolated test was conducted second. Test–retest intraclass correlation coefficients (ICCs) in the classroom setting indicated moderate to high reliability (mean RT = .84, lapses = .59). Bland–Altman analysis showed no systematic difference between the two settings. Findings suggest that the 5-min PDA PVT is a reliable measure of sustained attention in the classroom setting in this sample of primary-aged schoolchildren. The results provide further evidence for the versatility of this measuring device for larger interventions outside the laboratory.
Environmental management accounting for cleaner production: the case of a Philippine rice mill
No full textLinking the roles of knowledge management and leadership, and their impact on firm performance : an empirical study of Australian large enterprises
No full textResearch proposal (PhD)--University of South Australia, 2013.
Estimating the risk of functional decline in the elderly after discharge from an Australian public tertiary hospital emergency department
No full textTraditional Australian Aboriginal medicinal plants : an untapped resource for novel therapeutic compounds?
No full textStudent engagement with team-based learning in undergraduate entrepreneurship courses : an exploratory study
No full textStudent engagement in their courses has been demonstrated to be related to positive leaming outcomes. Engaging students is particularly important in entrepreneurship education because of the complexity of entrepreneurship as an activity and field of study. Team-Based Leaming has been identified as an effective teaching method for engaging students with course content in a range of fields of study. This paper describes the application of concept mapping as a research method to identify what undergraduate students understand to be engagement with the Team-Based Learning method in an entrepreneurship foundation course. This research identified themes of engagement across tlu·ee separate deliveries of this course that were largely cognitive, and were generally in accordance with the dimensions of engagement employed in questionnaires used to measure engagement at the institutional and classroom level. The results have value in helping educators to fmiher refine the effectiveness of this pmticular teaching method. The results also suggest areas for further research.
Bioavailability and ecotoxicity of arsenic species in solution culture and soil system: implications to remediation
No full textOver the past few decades significant progress has been made in research on DDT degradation in the environment. This review is an update of some of the recent studies on the degradation and biodegradation pathways of DDT and its metabolites, particularly in soils. The latest reports on human toxicity shows that DDT intake is still occurring even in countries that banned its use decades ago. Ageing, sequestration and formation of toxic metabolites during the degradation processes pose environmental challenges and result in difficulties in bioremediation of DDT contaminated soils. Degradation enhancement strategies such as the addition of chelators, low molecular organic acids, co-solvent washing and the use of sodium and seaweeds as ameliorant have been studied to accelerate degradation. This review describes and discusses the recent challenges and degradation enhancement strategies for DDT degradation by potentially cost effective procedures based on bioremediation.
