562 research outputs found

    Gas sensors for climate research

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    The availability of datasets providing information on the spatial and temporal evolution of greenhouse gas concentrations is of high relevance for the development of reliable climate simulations. However, current gas detection technologies do not allow for obtaining high-quality data at intermediate spatial scales with high temporal resolution. In this regard the deployment of a wireless gas sensor network equipped with in situ gas analysers may be a suitable approach. Here we present a novel, non-dispersive infrared absorption spectroscopy (NDIR) device that can possibly act as a central building block of a sensor node to provide high-quality data of carbon dioxide (CO2) concentrations under field conditions at a high measurement rate. Employing a gas-based, photoacoustic detector we demonstrate that miniaturized, low-cost, and low-power consuming CO2 sensors may be built. The performance is equal to that of standard NDIR devices but at a much reduced optical path length. Because of the spectral properties of the photoacoustic detector, no cross-sensitivities to humidity exist.</p

    Site staff perspectives on communicating trial results to participants : Cost and feasibility results from the Show RESPECT cluster randomised, factorial, mixed-methods trial

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    We are grateful to the patients and site staff who participated in this study. We dedicate this article to the memory of Amanda Hunn, who was part of the steering group for this study until she passed away in 2022. We thank other members of the steering group for their input into the study, especially Conor Tweed and Liz James. We acknowledge the hard work and diligence of Cara Purvis, the trial manager, and the data managers for Show RESPECT. We also thank the ICON8 trial team for their support, particularly Babasola Popoola, Francesca Schiavone, Jonathan Badrock, Andrew Clamp and Rick Kaplan.Peer reviewe

    Site staff perspectives on communicating trial results to participants: Cost and feasibility results from the Show RESPECT cluster randomised, factorial, mixed-methods trial

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    BACKGROUND/AIMS: Sharing trial results with participants is an ethical imperative but often does not happen. Show RESPECT (ISRCTN96189403) tested ways of sharing results with participants in an ovarian cancer trial (ISRCTN10356387). Sharing results via a printed summary improved patient satisfaction. Little is known about staff experience and the costs of communicating results with participants. We report the costs of communication approaches used in Show RESPECT and the views of site staff on these approaches. METHODS: We allocated 43 hospitals (sites) to share results with trial participants through one of eight intervention combinations (2 × 2 × 2 factorial; enhanced versus basic webpage, printed summary versus no printed summary, email list invitation versus no invitation). Questionnaires elicited data from staff involved in sharing results. Open- and closed-ended questions covered resources used to share results and site staff perspectives on the approaches used. Semi-structured interviews were conducted. Interview and free-text data were analysed thematically. The mean additional site costs per participant from each intervention were estimated jointly as main effects by linear regression. RESULTS: We received questionnaires from 68 staff from 41 sites and interviewed 11 site staff. Sites allocated to the printed summary had mean total site costs of sharing results £13.71/patient higher (95% confidence interval (CI): -3.19, 30.60; p = 0.108) than sites allocated no printed summary. Sites allocated to the enhanced webpage had mean total site costs £1.91/patient higher (95% CI: -14, 18.74; p = 0.819) than sites allocated to the basic webpage. Sites allocated to the email list had costs £2.87/patient lower (95% CI: -19.70, 13.95; p = 0.731) than sites allocated to no email list. Most of these costs were staff time for mailing information and handling patients' queries. Most site staff reported no concerns about how they had shared results (88%) and no challenges (76%). Most (83%) found it easy to answer queries from patients about the results and thought the way they were allocated to share results with participants would be an acceptable standard approach (76%), with 79% saying they would follow the same approach for future trials. There were no significant effects of the randomised interventions on these outcomes. Site staff emphasised the importance of preparing patients to receive the results, including giving opt-in/opt-out options, and the need to offer further support, particularly if the results could confuse or distress some patients. CONCLUSIONS: Adding a printed summary to a webpage (which significantly improved participant satisfaction) may increase costs to sites by ~£14/patient, which is modest in relation to the cost of trials. The Show RESPECT communication interventions were feasible to implement. This information could help future trials ensure they have sufficient resources to share results with participants

    Ottawa 2020 consensus statements for programmatic assessment 2: Implementation and practice

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    INTRODUCTION: Programmatic assessment is a longitudinal, developmental approach that fosters and harnesses the learning function of assessment. Yet the implementation, a critical step to translate theory into practice, can be challenging. As part of the Ottawa 2020 consensus statement on programmatic assessment, we sought to provide descriptions of the implementation of the 12 principles of programmatic assessment and to gain insight into enablers and barriers across different institutions and contexts. METHODS: After the 2020 Ottawa conference, we surveyed 15 Health Profession Education programmes from six different countries about the implementation of the 12 principles of programmatic assessment. Survey responses were analysed using a deductive thematic analysis. RESULTS AND DISCUSSION: A wide range of implementations were reported although the principles remained, for the most part, faithful to the original enunciation and rationale. Enablers included strong leadership support, ongoing faculty development, providing students with clear expectations about assessment, simultaneous curriculum renewal and organisational commitment to change. Most barriers were related to the need for a paradigm shift in the culture of assessment. Descriptions of implementations in relation to the theoretical principles, across multiple educational contexts, coupled with explanations of enablers and barriers, provided new insights and a clearer understanding of the strategic and operational considerations in the implementation of programmatic assessment. Future research is needed to further explore how contextual and cultural factors affect implementation

    Testing approaches to sharing trial results with participants : The Show RESPECT cluster randomised, factorial, mixed methods trial

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    Funding: The Show RESPECT study was funded by the Medical Research Council through core grants to MRS at the MRC CTU at UCL for Trial Conduct Methodology (MC_UU12023/24 and MC_UU_00004/08) https://mrc.ukri.org/. The funder had no role in the study design, the collection, analysis and interpretation of data, the writing of the report and the decision to submit the article for publication. All authors had full access to the study data, including statistical reports and tables, and can take responsibility for the integrity of the data and the accuracy of the data analysis. Acknowledgments We are very thankful to the patients who participated in this study and the people who contributed to our Patient and Public Involvement activities. We are very grateful for the work of the Show RESPECT site teams in carrying out this study. A list of team members from sites can be found in S10 Table. We thank Eva Burnett, who is a patient representative on the Study Steering Group for Show RESPECT and ICON8, for her input on the design and conduct of this study and for her comments on this manuscript, and Amanda Hunn for her contributions to the steering group. We also acknowledge the hard work and diligence of Sierra Santana and Ania Spurdens, who were data managers for Show RESPECT. We also wish to thank the ICON8 trial team for their support of this project, particularly Andrew Clamp, Babasola Popoola, Francesca Schiavone, Jonathan Badrock, and Rick Kaplan. We also thank Julia Bailey for her advice and guidance on the qualitative aspect of this study.Peer reviewedPublisher PD

    Improving Project Logistics by using IoT

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    This BachelorŽs thesis is made on behalf of WÀrtsilÀ Energy Solutions, Project Logistics & Transport Management department whose main task is to coordinate and ensure that materials and products are transported to the right place and on time in Project Logistics. This thesis examines how you could improve WÀrtsilÀŽs Project Logistics by using Internet of Things. By developing IoT, there has been an increased chance to get more information about transports than before and WÀrtsilÀ is currently looking for new solutions to use that could improve their current logistics system. The purpose of this thesis is to review new, and used, solutions on the market, and then see what could work in practice at WÀrtsilÀ. Material to this thesis are gathered from books, web pages and articles that reviewed interesting IoT solutions and which also gave examples on different solutions that are used by other companies in the same business. The Result is two different methods that could improve WÀrtsilÀŽs Project Logistics in different occasions. These results are intended to give tips on how IoT could improve the departmentŽs ways of coordinating and check transports and logistics within a project.Detta examensarbete Àr gjort i uppdrag av WÀrtsilÀ Energy Solutions, Project logistics & Transport Management avdelningen vars huvuduppgift Àr att koordinera och se till att material och produkter transporteras till rÀtt plats i rÀtt tid inom projekt logistiken. Examensarbetet behandlar hur man kunde förbÀttra WÀrtsilÀs projekt logistik genom att anvÀnda Internet of Things. Genom att IoT har utvecklats har det uppstÄtt möjligheter att fÄ fram mer information om transporter Àn tidigare och WÀrtsilÀ söker för tillfÀllet nya lösningar som kunde anvÀndas för att förbÀttra deras nuvarande logistiksystem. Syftet med arbetet Àr att gÄ igenom nya, men Àven redan befintliga, lösningar som anvÀnds pÄ dagens marknad - för att sedan se vad som kunde fungera i praktiken hos WÀrtsilÀ. Material till arbetet Àr samlat frÄn böcker, webbsidor och artiklar som gick igenom intressanta IoT lösningar och som ocksÄ gav exempel pÄ hur olika system fungerar och anvÀnds av andra företag inom samma bransch. Slutresultatet blev tvÄ olika metoder som kunde förbÀttra WÀrtsilÀs projekt logistik vid olika tillfÀllen. Dessa resultat Àr tÀnkta för att ge tips pÄ hur IoT kunde förbÀttra avdelningens sÀtt hur man koordinerar och granskar transporter och logistiken inom ett projekt

    Undergraduate medical research: the student perspective

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    Background: Research training is essential in a modern undergraduate medical curriculum. Our evaluation aimed to (a) gauge students&#x2019; awareness of research activities, (b) compare students&#x2019; perceptions of their transferable and research-specific skills competencies, (c) determine students&#x2019; motivation for research and (d) obtain students&#x2019; personal views on doing research. Methods: Undergraduate medical students (N=317) completed a research skills questionnaire developed by the Centre for Excellence in Teaching and Learning in Applied Undergraduate Research Skills (CETL-AURS) at Reading University. The questionnaire assessed students&#x2019; transferable skills, research-specific skills (e.g., study design, data collection and data analysis), research experience and attitude and motivation towards doing research. Results: The majority of students are motivated to pursue research. Graduate entrants and male students appear to be the most confident regarding their research skills competencies. Although all students recognise the role of research in medical practice, many are unaware of the medical research activities or successes within their university. Of those who report no interest in a career incorporating research, a common perception was that researchers are isolated from patients and clinical practice. Discussion: Students have a narrow definition of research and what it entails. An explanation for why research competence does not align more closely with research motivation is derived from students&#x2019; lack of understanding of the concept of translational research, as well as a lack of awareness of the research activity being undertaken by their teachers and mentors. We plan to address this with specific research awareness initiatives

    Returning Individual Research Results from Digital Phenotyping in Psychiatry

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    Psychiatry is rapidly adopting digital phenotyping and artificial intelligence/machine learning tools to study mental illness based on tracking participants’ locations, online activity, phone and text message usage, heart rate, sleep, physical activity, and more. Existing ethical frameworks for return of individual research results (IRRs) are inadequate to guide researchers for when, if, and how to return this unprecedented number of potentially sensitive results about each participant’s real-world behavior. To address this gap, we convened an interdisciplinary expert working group, supported by a National Institute of Mental Health grant. Building on established guidelines and the emerging norm of returning results in participant-centered research, we present a novel framework specific to the ethical, legal, and social implications of returning IRRs in digital phenotyping research. Our framework offers researchers, clinicians, and Institutional Review Boards (IRBs) urgently needed guidance, and the principles developed here in the context of psychiatry will be readily adaptable to other therapeutic areas
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