2,710 research outputs found

    Intelligent monitoring and diagnosis systems for the Space Station Freedom ECLSS

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    Specific activities in NASA's environmental control and life support system (ECLSS) advanced automation project that is designed to minimize the crew and ground manpower needed for operations are discussed. Various analyses and the development of intelligent software for the initial and evolutionary Space Station Freedom (SSF) ECLSS are described. The following are also discussed: (1) intelligent monitoring and diagnostics applications under development for the ECLSS domain; (2) integration into the MSFC ECLSS hardware testbed; and (3) an evolutionary path from the baseline ECLSS automation to the more advanced ECLSS automation processes

    Fidelity in complex behaviour change interventions : a standardised approach to evaluate intervention integrity

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    Objectives: The aim of this study was to (1) demonstrate the development and testing of tools and procedures designed to monitor and assess the integrity of a complex intervention for chronic pain (COping with persistent Pain, Effectiveness Research into Self-management (COPERS) course); and (2) make recommendations based on our experiences. Design: Fidelity assessment of a two-arm randomised controlled trial intervention, assessing the adherence and competence of the facilitators delivering the intervention. Setting: The intervention was delivered in the community in two centres in the UK: one inner city and one a mix of rural and urban locations. Participants: 403 people with chronic musculoskeletal pain were enrolled in the intervention arm and 300 attended the self-management course. Thirty lay and healthcare professionals were trained and 24 delivered the courses (2 per course). We ran 31 courses for up to 16 people per course and all were audio recorded. Interventions: The course was run over three and a half days; facilitators delivered a semistructured manualised course. Outcomes: We designed three measures to evaluate fidelity assessing adherence to the manual, competence and overall impression. Results: We evaluated a random sample of four components from each course (n=122). The evaluation forms were reliable and had good face validity. There were high levels of adherence in the delivery: overall adherence was two (maximum 2, IQR 1.67–2.00), facilitator competence exhibited more variability, and overall competence was 1.5 (maximum 2, IQR 1.25–2.00). Overall impression was three (maximum 4, IQR 2.00–3.00). Conclusions: Monitoring and assessing adherence and competence at the point of intervention delivery can be realised most efficiently by embedding the principles of fidelity measurement within the design stage of complex interventions and the training and assessment of those delivering the intervention. More work is necessary to ensure that more robust systems of fidelity evaluation accompany the growth of complex interventions

    Coping with Persistent Pain, Effectiveness Research into Self-management (COPERS): statistical analysis plan for a randomised controlled trial

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    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 credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated

    PATHOS: A Brief Screening Application for Assessing Sexual Addiction

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    Sexual addiction is estimated to afflict up to 3% to 6% of the population. However, many clinicians lack clear criteria for detecting potential cases. Objectives: The present studies were conducted to assess the effectiveness of a brief sexual addiction screening instrument (ie, PATHOS Questionnaire) to correctly classify patients being treated for sex addiction and healthy volunteers. Methods: In study 1, a 6-item questionnaire, which utilizes the mnemonic PATHOS, was examined in regard to sensitivity and specificity using a sample combining patients being treated for sex addiction and healthy volunteers (970 men/80.2% patients; 938 women/63.8% patients). In study 2, a cross-validation sample of 672 men (93% patients) and 241 women (35.3% patients) completed the PATHOS screener. Results: Results of receiver operating characteristics analyses in study 1 demonstrated that the PATHOS captured 92.6% of the area under the curve and achieved 88.3% sensitivity and 81.6% specificity for classifying the male sample (n = 963) as patients and healthy subjects using a cutoff score of 3. Similarly, the PATHOS captured 90.2% of the area under the curve and, with a cutoff of 3, achieved 80.9% sensitivity and 87.2% specificity for the female sample (n = 808). In study 2, results of receiver operating characteristics analyses indicated that the PATHOS captured 85.1% of the area under the curve, with sensitivity of 70.7% and specificity of 86.9% for men (cutoff of 3). For women, the PATHOS captured 80.9% of the area under the curve and achieved 69.7% sensitivity and 85.1% specificity with the cutoff of 3. Conclusions: These studies provide support for the use of the PATHOS as a screening instrument to detect potential sexual addiction cases in clinical settings

    Maximizing Influence in a Competitive Social Network: A Follower's Perspective

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    Maximizing Influence in a Competitive Social Network: A Follower's Perspectiv

    Biodemographic perspectives for epidemiologists

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    A new scientific discipline arose in the late 20(th )century known as biodemography. When applied to aging, biodemography is the scientific study of common age patterns and causes of death observed among humans and other sexually reproducing species and the biological forces that contribute to them. Biodemography is interdisciplinary, involving a combination of the population sciences and such fields as molecular and evolutionary biology. Researchers in this emerging field have discovered attributes of aging and death in humans that may very well change the way epidemiologists view and study the causes and expression of disease. In this paper, the biodemography of aging is introduced in light of traditional epidemiologic models of disease causation and death

    Understanding the role of shame and its consequences in female hypersexual behaviours: A pilot study

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    Background and aims: Hypersexuality and sexual addiction among females is a little understudied phenomenon. Shame is thought to be intrinsic to hypersexual behaviours, especially in women. Therefore, the aim of this study was to understand both hypersexual behaviours and consequences of hypersexual behaviours and their respective contributions to shame in a British sample of females (n = 102). Methods: Data were collected online via Survey Monkey. Results: Results showed the Sexual Behaviour History (SBH) and the Hypersexual Disorder Questionnaire (HDQ) had significant positive correlation with scores on the Shame Inventory. The results indicated that hypersexual behaviours (HBI and HDQ) were able to predict a small percentage of the variability in shame once sexual orientation (heterosexual vs. non-heterosexual) and religious beliefs (belief vs. no belief) were controlled for. Results also showed there was no evidence that religious affiliation and/or religious beliefs had an influence on the levels of hypersexuality and consequences of sexual behaviours as predictors of shame. Conclusions: While women in the UK are rapidly shifting to a feminist way of thinking with or without technology, hypersexual disorder may often be misdiagnosed and misunderstood because of the lack of understanding and how it is conceptualised. The implications of these findings are discussed
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