411 research outputs found

    Using iPad2 to Assess Students\u27 Live Performances and Actively Engage Students With Tutor and Peer Feedback

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    Assessing student live performances can be challenging because markers need to make quick and often complex judgements about the learning while at the same time record information and watch the performance. This is further challenged where multiple markers are involved and moderation between markers is required. Maintaining fairness and validity throughout the assessment process can consequently become a significant issue. Moderation of assessment can cause a delay in the turnaround time for student feedback because markers need to meet and review. In addition, the ‘busy type of work’ associated with compiling and sorting individual marks and distributing them to students, often further delays this process. This paper describes a two phase, qualitative, action research project which trialled the use of an innovative digital tool to streamline the assessment process when assessing live performances. Phase one involved the assessment of arts performances of 170 Bachelor of Education students and phase two involved 200 students. For each phase, the students were enrolled in a 12 week Arts Education unit in the third year of their course and were assessed in groups of 5 or 6 students. The digital assessment tool enabled each marker wireless access to a customised database during marking and moderation. Markers used laptops in phase one of the study, then iPad2 in phase two, as it enabled mobility during assessment. Each group’s performance video was embedded into their marking key. This made it quick and easy to locate and view. The digital tool automatically saved and collated data. At the completion of the marking and moderation period, the marking key with markers’ feedback as well as the embedded video of performance were automatically emailed to individuals as a pdf attachment. Individuals only received the feedback pertaining to their own group’s performance. The markers reported that the digital tool significantly enhanced the way in which they were able to capture and record their observations of complex learning. They felt that the assessment was more accurate and that the paperless process was far more efficient. The students reported that they became more engaged with the assessment process and that they engaged with their feedback on multiple occasions

    Improving assessment outcomes through the application of innovative digital technologies

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    Assessing students’ live performances is challenging because the marker needs to make complex judgements, often very quickly, while at the same time recording information and watching the performance. This is further challenged when multiple markers are involved and moderation of marks is required. It can be difficult to maintain good assessment principles, such as fairness and validity and to offer students quality and timely feedback. This paper describes a two phase, qualitative, action research project that trialled the use of an innovative, digital technology supported, assessment tool designed to improve the efficiency and effectiveness of assessment and moderation of live performances. The digital assessment tool enabled students to engage with the assessment and feedback from tutors and peers multiple times. The project was initially trialled with 170 pre-service teachers (in phase one) and then 200 pre-service teachers (in phase two) enrolled in an arts education unit in the third year of their Bachelor of Education course. Literature is abundant with references of digital technology which is used to automate scoring and marks (Clarke-Midura & Dede, 2010), however, use of digital technology in this project does not replace the marker. Instead, it provides the marker with a tool with which to conduct and easily record rich observations of complex learning and it does so in a paperless, highly efficient and engaging way

    Exposure to low-level ambient air pollution and the relationship with lung and bladder cancer in older men, in Perth, Western Australia

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    Background: Air pollution is a cause of lung cancer and is associated with bladder cancer. However, the relationship between air pollution and these cancers in regions of low pollution is unclear. We investigated associations between fine particulate matter (PM2.5), nitrogen dioxide, and black carbon (BC), and both these cancers in a low-pollution city. Methods: A cohort of 11,679 men ≥65 years old in Perth (Western Australia) were followed from 1996–1999 until 2018. Pollutant concentrations, as a time-varying variable, were estimated at participants’ residential addresses using land use regression models. Incident lung and bladder cancer were identified through the Western Australian Cancer Registry. Risks were estimated using Cox proportional-hazard models (age as the timescale), adjusting for smoking, socioeconomic status, and co-pollutants. Results: Lung cancer was associated with PM2.5 and BC in the adjusted single-pollutant models. A weak positive association was observed between ambient air pollution and squamous cell lung carcinoma but not lung adenocarcinoma. Positive associations were observed with bladder cancer, although these were not statistically significant. Associations were attenuated in two-pollutant models. Conclusion: Low-level ambient air pollution is associated with lung, and possibly bladder, cancer among older men, suggesting there is no known safe level for air pollution as a carcinogen

    Long-term exposure to low concentrations of air pollutants and hospitalisation for respiratory diseases:A prospective cohort study in Australia

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    Background: Short- and long-term spatiotemporal variation in exposure to air pollution is associated with respiratory morbidity in areas with moderate-to-high level of air pollution, but very few studies have examined whether these associations also exist in areas with low level exposure. Objectives: We assessed the association between spatial variation in long-term exposure to PM and NO and hospitalisation for all respiratory diseases, asthma, chronic obstructive pulmonary disease (COPD), and pneumonia, in older adults residing in Sydney, Australia, a city with low-level concentrations. Methods: We recorded data on hospitalisations for 100,084 participants, who were aged >45 years at entry in 2006–2009 until June 2014. Annual NO and PM concentrations were estimated for the participants’ residential addresses and Cox proportional hazards regression was used to model the association between exposure to air pollutants and first episode of hospitalisation, controlling for personal and area level covariates. We further investigated the shape of the exposure-response association and potential effect modification by age, sex, education level, smoking status, and BMI. Results: NO and PM annual mean exposure estimates were 17.5 μg·m and 4.5 μg·m respectively. NO and PM was positively, although not significantly, associated with asthma. The adjusted hazard ratio for a 1 μg·m increase in PM was 1.08, 95% confidence interval 0.89–1.30. The adjusted hazard ratio for a 5 μg·m increase in NO was 1.03, 95% confidence interval 0.88–1.19. We found no positive statistically significant associations with hospitalisation for all respiratory diseases, and pneumonia while negative associations were observed with COPD. Conclusions: We found weak positive associations of exposure to air pollution with hospitalisation for asthma while there was no evidence of an association for all respiratory diseases

    All-cause mortality and long-term exposure to low level air pollution in the ‘45 and up study’ cohort, Sydney, Australia, 2006–2015

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    Epidemiological studies show that long-term exposure to ambient air pollution reduces life expectancy. Most studies have been in environments with relatively high concentrations such as North America, Europe and Asia. Associations at the lower end of the concentration-response function are not well defined.We assessed associations between all-cause mortality and exposure to annual average particulate matte

    NCF1 gene and pseudogene pattern: association with parasitic infection and autoimmunity

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    <p>Abstract</p> <p>Background</p> <p>Neutrophil cytosolic factor 1, p47<sup>phox </sup>(NCF1) is a component of the leukocyte NADPH oxidase complex mediating formation of reactive oxygen intermediates (ROI) which play an important role in host defense and autoimmunity. An individual genomic pattern of <it>ncf1 </it>and its two types of pseudogenes (reflected by the ΔGT/GTGT ratio) may influence the individual capacity to produce ROI.</p> <p>Methods</p> <p>NCF1ΔGT/GTGT ratios were correlated with clinical parameters and ROI production during <it>Plasmodium falciparum </it>malaria and with susceptibility to the autoimmune disease multiple sclerosis (MS).</p> <p>Results</p> <p>Among Gabonese children with severe malaria, ROI production from peripheral blood tended to be higher in individuals with a ΔGT/GTGT ratio ≤ 1:1. ΔGT/GTGT ratios were not associated with susceptibility to MS, but to age-of-onset among MS patients.</p> <p>Conclusion</p> <p>The genomic pattern of <it>NCF1 </it>and its pseudogenes might influence ROI production but only marginally influence susceptibility to and outcome of malaria and MS.</p

    Smoking and health-related quality of life in English general population: Implications for economic evaluations

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    Copyright @ 2012 Vogl et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.This article has been made available through the Brunel Open Access Publishing Fund.Background: Little is known as to how health-related quality of life (HRQoL) when measured by generic instruments such as EQ-5D differ across smokers, ex-smokers and never-smokers in the general population; whether the overall pattern of this difference remain consistent in each domain of HRQoL; and what implications this variation, if any, would have for economic evaluations of tobacco control interventions. Methods: Using the 2006 round of Health Survey for England data (n = 13,241), this paper aims to examine the impact of smoking status on health-related quality of life in English population. Depending upon the nature of the EQ-5D data (i.e. tariff or domains), linear or logistic regression models were fitted to control for biology, clinical conditions, socio-economic background and lifestyle factors that an individual may have regardless of their smoking status. Age- and gender-specific predicted values according to smoking status are offered as the potential 'utility' values to be used in future economic evaluation models. Results: The observed difference of 0.1100 in EQ-5D scores between never-smokers (0.8839) and heavy-smokers (0.7739) reduced to 0.0516 after adjusting for biological, clinical, lifestyle and socioeconomic conditions. Heavy-smokers, when compared with never-smokers, were significantly more likely to report some/severe problems in all five domains - mobility (67%), self-care (70%), usual activity (42%), pain/discomfort (46%) and anxiety/depression (86%) -. 'Utility' values by age and gender for each category of smoking are provided to be used in the future economic evaluations. Conclusion: Smoking is significantly and negatively associated with health-related quality of life in English general population and the magnitude of this association is determined by the number of cigarettes smoked. The varying degree of this association, captured through instruments such as EQ-5D, may need to be fed into the design of future economic evaluations where the intervention being evaluated affects (e.g. tobacco control) or is affected (e.g. treatment for lung cancer) by individual's (or patients') smoking status
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