264 research outputs found

    Teaching an intensive core course for medical students in the era of Covid-19: Mindful Medical Practice on Zoom

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    Background The COVID19 pandemic brought many challenges, including delivering interactive courses such as the Mindful Medical Practice (MMP) program to medical students. It also provided opportunities to trial online teaching of the program using technologies such as Zoom. Approach Medical educators from McGill University in Montreal and The Rural Clinical School of Western Australia in Busselton collaborated via Zoom to adapt the MMP program to an online format. This involved weekly meetings to adapt each class and debrief following its delivery. A number of adaptations were required which were implemented with ease while maintaining the program’s integrity. Evaluation The facilitator found the course relatively straightforward to teach with Zoom. In their essays at the end of the coursethe students reported that the MMP program was a valuable experience that they found to be “enjoyable”, “positive”, “interesting”, “beneficial” and “refreshing”. They reported that the online experience offered benefits over face-to-face delivery and was particularly helpful during the COVID19 pandemic. Reflection There were a number of potential limitations: this was a relatively small group of students; the students were already well acquainted with the facilitator; the students and the facilitator were experienced in using Zoom for teaching. The major strength was a clear demonstration of the feasibility of delivering the entire program online that is particularly relevant during this time of stress and uncertainty and also expands the potential to provide this teaching to students and universities across the world

    “The First Day He Kicked Shoes at Me, the Last Day He Brought Me a Picture of Himself”: Investigating the Practicum Experiences of Pre-service Teachers

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    The purpose of this study was to describe the ways in which the experiences gained during practica influence the developing self-efficacy of Canadian pre-service teachers for teaching in inclusive classrooms. Questionnaires were issued to participants in teacher education programs at 11 universities across Canada, and the data were subjected to content analysis. Several themes that emerged from the participant responses were found to be influential in pre-service teachers’ feelings of efficacy, with behaviour management having the greatest influence, regardless of whether participants felt successful or challenged. Academic outcomes, relationships with students, and other school adults as resources were also identified as themes influencing pre-service teachers’ feelings of success and challenge in practica. The data revealed attitudes and beliefs about inclusion and the impact these may have on teacher efficacy. Several elements can positively influence teacher efficacy including the ability to identify and utilize instructional and personnel resources, the ability to form supportive professional relationships with other school adults, and the ability to recognize achievement as it pertains to the individual rather than prescribed norms. As beliefs about self-efficacy are informed by enactive mastery experiences, vicarious experiences, physiological factors, and verbal persuasion, teacher preparation programs can foster teacher efficacy by encouraging the development of positive attitudes and equipping teachers with the skills they need

    Brown fat depots in adult humans remain static in their locations on PET/CT despite changes in seasonality

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    Active brown adipose tissue (BAT) in humans has been demonstrated through use of positron emission tomography with 2-deoxy-2-(fluorine-18) fluoro-D-glucose integrated with computed tomography (18F-FDG PET/CT) scans. The aim of our study was to determine whether active human BAT depots shown on 18F-FDG PET/CT scans remain static in their location over time. This was a retrospective study. Adult human subjects (n = 15) who had had 18F-FDG PET/CT imaging (n = 38 scans in total) for clinical reasons were included on the basis of 18F-FDG uptake patterns consistent with BAT activity. For each subject, 18F-FDG BAT uptake pattern on serial 18F-FDG PET/CT images was compared to an index 18F-FDG PET/CT image with the largest demonstrable BAT volume. Object-based colocalization was expressed as Mander's correlation coefficient (where 1 = 100% overlap, 0 = no overlap). Distribution of 18F-FDG BAT activity over time and across multiple 18F-FDG BAT scans was equivalent in 60% (n = 9) of the subjects. The degree of consistency in the pattern of 18F-FDG BAT uptake in each subject over time was greater than expected by chance in 87% (n = 13) of the subjects (pair-wise agreement 75–100%, Fleiss’ Îș 0.4–1). The degree of BAT colocalization on serial scans was greater than that expected by chance in 93% (n = 14) of the subjects (mean Mander's coefficient 0.81 ± 0.21 [95% CI]). To our knowledge, our study provides the most conclusive evidence to date to support the notion that active BAT depots in humans (volumes and activities of which were measured through use of 18F-FDG PET/CT scans) remain static in location over sustained periods

    Management of Acute COPD Exacerbations in Australia: Do we Follow the Guidelines?

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    Objective: We aimed to assess adherence to the Australian national guideline (COPD-X) against audited practice, and to document the outcomes of patients hospitalised with an acute exacerbation of chronic obstructive pulmonary disease (COPD) at discharge and 28 days after. Methods: A prospective clinical audit of COPD hospital admission from five tertiary care hospitals in five states of Australia was conducted. Post-discharge follow-up was conducted via telephone to assess for readmission and health status. Results: There were 207 admissions for acute exacerbation (171 patients; mean 70.2 years old; 50.3%males). Readmission rates at 28 days were 25.4%, with one (0.6%) death during admission and eight(6.1%) post-discharge within 28 days. Concordance to the COPD-X guidance was variable; 22.7% performed spirometry, 81.1% had blood gases collected when forced expiratory volume in 1 s was \u3c1 \u3eL,99.5% had chest radiography performed, 95.1% were prescribed systemic corticosteroids and 95% were prescribed antibiotic therapy. There were 89.1% given oxygen therapy and 92.6% when arterial oxygen tension was \u3c80 \u3emmHg; 65.6% were given ventilatory assistance when pH was Conclusion: When compared against clinical practice guidelines, we found important gaps in management of patients admitted with COPD throughout tertiary care centres in Australia. Strategies to improve guideline uptake are needed to optimise care

    The prevention and management of HIV and sexual and gender-based violence: Responding to the needs of survivors and those-at-risk

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    The Population Council seeks to understand the social, economic, political, and physical context of risks for sexual and gender-based violence and HIV. Among the top priorities of Council research are supporting and evaluating efforts to prevent violence and HIV, including creating safe spaces for adolescent girls, and working with men and boys to change gender norms within the community; and comprehensively responding to the needs of survivors (including those who are HIV-infected) by strengthening health systems and integrating services. The purpose of this guide is to provide practical guidance on the steps necessary to establish and strengthen sexual violence (SV) services within existing public health facilities, improve linkages to other sectors, and engage local communities around issues of sexual violence. It includes tips, resources, and tools that will help partners and stakeholders design, implement, and evaluate SV programs

    H-Bond Acceptor Parameters for Anions

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    UV/vis absorption titrations have been used to investigate the formation of H-bonded complexes between anionic H-bond acceptors (HBAs) and neutral H-bond donors (HBDs) in organic solvents. Complexes formed by three different HBDs with 15 different anions were studied in chloroform and in acetonitrile. The data were used to determine self-consistent HBA parameters (ÎČ) for chloride, bromide, iodide, phosphate diester, acetate, benzoate, perrhenate, nitrate, triflimide, perchlorate, hexafluorophosphate, hydrogen sulfate, methyl sulfonate, triflate, and perfluorobutyl sulfonate. The results demonstrate the transferability of H-bond parameters for anions between different solvents and different HBD partners, allowing reliable prediction of anion recognition properties in other scenarios. Carboxylates are the strongest HBAs studied, with ÎČ parameters (≈ 15) that are significantly higher than those of neutral organic HBAs, and the non-coordinating anion hexafluorophosphate is the weakest acceptor, with a ÎČ parameter comparable to that of pyridine. The effects of ion pairing with the counter-cation were found to be negligible, provided small polar cations were avoided in the less polar solvent (chloroform). There is no correlation between the H-bonding properties of the anions and the pKa_{a} values of the conjugate acids.The authors acknowledge financial support from the Engineering and Physical Sciences Research Council (EPSRC)

    Effectiveness and cost-effectiveness of a physical activity loyalty scheme for behaviour change maintenance: a cluster randomised controlled trial

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    Abstract Background Increasing physical activity in the workplace can provide employee physical and mental health benefits, and employer economic benefits through reduced absenteeism and increased productivity. The workplace is an opportune setting to encourage habitual activity. However, there is limited evidence on effective behaviour change interventions that lead to maintained physical activity. This study aims to address this gap and help build the necessary evidence base for effective, and cost-effective, workplace interventions. Methods/design This cluster randomised control trial will recruit 776 office-based employees from public sector organisations in Belfast and Lisburn city centres, Northern Ireland. Participants will be randomly allocated by cluster to either the Intervention Group or Control Group (waiting list control). The 6-month intervention consists of rewards (retail vouchers, based on similar principles to high street loyalty cards), feedback and other evidence-based behaviour change techniques. Sensors situated in the vicinity of participating workplaces will promote and monitor minutes of physical activity undertaken by participants. Both groups will complete all outcome measures. The primary outcome is steps per day recorded using a pedometer (Yamax Digiwalker CW-701) for 7 consecutive days at baseline, 6, 12 and 18 months. Secondary outcomes include health, mental wellbeing, quality of life, work absenteeism and presenteeism, and use of healthcare resources. Process measures will assess intervention “dose”, website usage, and intervention fidelity. An economic evaluation will be conducted from the National Health Service, employer and retailer perspective using both a cost-utility and cost-effectiveness framework. The inclusion of a discrete choice experiment will further generate values for a cost-benefit analysis. Participant focus groups will explore who the intervention worked for and why, and interviews with retailers will elucidate their views on the sustainability of a public health focused loyalty card scheme. Discussion The study is designed to maximise the potential for roll-out in similar settings, by engaging the public sector and business community in designing and delivering the intervention. We have developed a sustainable business model using a ‘points’ based loyalty platform, whereby local businesses ‘sponsor’ the incentive (retail vouchers) in return for increased footfall to their business. Trial registration ISRCTN17975376 (Registered 19/09/2014)

    The macroecology of infectious diseases: a new perspective on global-scale drivers of pathogen distributions and impacts

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    © 2016 John Wiley & Sons Ltd/CNRS. Identifying drivers of infectious disease patterns and impacts at the broadest scales of organisation is one of the most crucial challenges for modern science, yet answers to many fundamental questions remain elusive. These include what factors commonly facilitate transmission of pathogens to novel host species, what drives variation in immune investment among host species, and more generally what drives global patterns of parasite diversity and distribution? Here we consider how the perspectives and tools of macroecology, a field that investigates patterns and processes at broad spatial, temporal and taxonomic scales, are expanding scientific understanding of global infectious disease ecology. In particular, emerging approaches are providing new insights about scaling properties across all living taxa, and new strategies for mapping pathogen biodiversity and infection risk. Ultimately, macroecology is establishing a framework to more accurately predict global patterns of infectious disease distribution and emergence

    Glycan repositioning of influenza hemagglutinin stem facilitates the elicitation of protective cross-group antibody responses.

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    The conserved hemagglutinin (HA) stem has been a focus of universal influenza vaccine efforts. Influenza A group 1 HA stem-nanoparticles have been demonstrated to confer heterosubtypic protection in animals; however, the protection does not extend to group 2 viruses, due in part to differences in glycosylation between group 1 and 2 stems. Here, we show that introducing the group 2 glycan at Asn38 to a group 1 stem-nanoparticle (gN38 variant) based on A/New Caledonia/20/99 (H1N1) broadens antibody responses to cross-react with group 2 HAs. Immunoglobulins elicited by the gN38 variant provide complete protection against group 2 H7N9 virus infection, while the variant loses protection against a group 1 H5N1 virus. The N38 glycan thus is pivotal in directing antibody responses by controlling access to group-determining stem epitopes. Precise targeting of stem-directed antibody responses to the site of vulnerability by glycan repositioning may be a step towards achieving cross-group influenza protection.We thank D. Scorpio, A. Taylor, H. Bao, C. Chiedi, M. Dillon, L. Gilliam, and G. Sarbador (VRC) for help with animal studies; H. Andersen (Bioqual, Inc.) for mouse challenge studies; C. Case (Frederick National Laboratory for Cancer Research, Leidos Biomedical Research, Inc.) for help with challenge study coordination; A. Kumar (VRC) for producing RSV proteins; and members of Viral Pathogenesis Laboratory and Universal Influenza Vaccine Program (VRC) for helpful discussion. Support for this work was provided by the Intramural Research Program of the Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health. Electron microscopy data collection and analyses were funded by federal funds from the Frederick National Laboratory for Cancer Research, National Institutes of Health, under contract number HHSN261200800001E, and by Leidos Biomedical Research, Inc. (Y.T. and T.S.)

    Building the health-economic case for scaling up the WHO-HEARTS hypertension control package in low- and middle-income countries

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    Generally, hypertension control programs are cost-effective, including in low- and middle-income countries, but country governments and civil society are not likely to support hypertension control programs unless value is demonstrated in terms of public health benefits, budget impact, and value-for-investment for the individual country context. The World Health Organization (WHO) and the Pan American Health Organization (PAHO) established a standard, simplified Global HEARTS approach to hypertension control, including preferred antihypertensive medicines and blood pressure measurement devices. The objective of this study is to report on health economic studies of HEARTS hypertension control package cost (especially medication costs), cost-effectiveness, and budget impact and describe mathematical models designed to translate hypertension control program data into the optimal approach to hypertension care service delivery and financing, especially in lowand middle-income countries. Early results suggest that HEARTS hypertension control interventions are either cost-saving or cost-effective, that the HEARTS package is affordable at between US18−44perpersontreatedperyear,andthatantihypertensivemedicinescouldbepricedlowenoughtoreachaglobalstandardofanaverage<US 18-44 per person treated per year, and that antihypertensive medicines could be priced low enough to reach a global standard of an average <US 5 per patient per year in the public sector. This health economic evidence will make a compelling case for government ownership and financial support for national scale hypertension control programs
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