84 research outputs found

    Evaluation of a 'virtual' approach to commissioning health research

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    BACKGROUND: The objective of this study was to evaluate the implementation of a 'virtual' (computer-mediated) approach to health research commissioning. This had been introduced experimentally in a DOH programme โ€“ the 'Health of Londoners Programme' โ€“ in order to assess whether is could enhance the accessibility, transparency and effectiveness of commissioning health research. The study described here was commissioned to evaluate this novel approach, addressing these key questions. METHODS: A naturalistic-experimental approach was combined with principles of action research. The different commissioning groups within the programme were randomly allocated to either the traditional face-to-face mode or the novel 'virtual' mode. Mainly qualitative data were gathered including observation of all (virtual and face-to-face) commissioning meetings; semi-structured interviews with a purposive sample of participants (n = 32/66); structured questionnaires and interviews with lead researchers of early commissioned projects. All members of the commissioning groups were invited to participate in collaborative enquiry groups which participated actively in the analysis process. RESULTS: The virtual process functioned as intended, reaching timely and relatively transparent decisions that participants had confidence in. Despite the potential for greater access using a virtual approach, few differences were found in practice. Key advantages included physical access, a more flexible and extended time period for discussion, reflection and information gathering and a more transparent decision-making process. Key challenges were the reduction of social cues available in a computer-mediated medium that require novel ways of ensuring appropriate dialogue, feedback and interaction. However, in both modes, the process was influenced by a range of factors and was not technology driven. CONCLUSION: There is potential for using computer-mediated communication within the research commissioning process. This may enhance access, effectiveness and transparency of decision-making but further development is needed for this to be fully realised, including attention to process as well as the computer-mediated medium

    Paired Associative Stimulation of the Auditory System: A Proof-Of-Principle Study

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    Background Paired associative stimulation (PAS) consisting of repeated application of transcranial magnetic stimulation (TMS) pulses and contingent exteroceptive stimuli has been shown to induce neuroplastic effects in the motor and somatosensory system. The objective was to investigate whether the auditory system can be modulated by PAS. Methods Acoustic stimuli (4 kHz) were paired with TMS of the auditory cortex with intervals of either 45 ms (PAS(45 ms)) or 10 ms (PAS(10 ms)). Two-hundred paired stimuli were applied at 0.1 Hz and effects were compared with low frequency repetitive TMS (rTMS) at 0.1 Hz (200 stimuli) and 1 Hz (1000 stimuli) in eleven healthy students. Auditory cortex excitability was measured before and after the interventions by long latency auditory evoked potentials (AEPs) for the tone (4 kHz) used in the pairing, and a control tone (1 kHz) in a within subjects design. Results Amplitudes of the N1-P2 complex were reduced for the 4 kHz tone after both PAS(45 ms) and PAS(10 ms), but not after the 0.1 Hz and 1 Hz rTMS protocols with more pronounced effects for PAS(45 ms). Similar, but less pronounced effects were observed for the 1 kHz control tone. Conclusion These findings indicate that paired associative stimulation may induce tonotopically specific and also tone unspecific human auditory cortex plasticity

    Review and analysis of fire and explosion accidents in maritime transportation

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    The globally expanding shipping industry has several hazards such as collision, capsizing, foundering, grounding, stranding, fire, and explosion. Accidents are often caused by more than one contributing factor through complex interaction. It is crucial to identify root causes and their interactions to prevent and understand such accidents. This study presents a detailed review and analysis of fire and explosion accidents that occurred in the maritimetransportation industry during 1990โ€“2015. The underlying causes of fire and explosion accidents are identified and analysed. This study also reviewed potential preventative measures to prevent such accidents. Additionally, this study compares properties of alternative fuels and analyses their effectiveness in mitigating fire and explosionhazards. It is observed that Cryogenic Natural Gas (CrNG), Liquefied Natural Gas (LNG) and methanol have properties more suitable than traditional fuels in mitigating fire risk and appropriate management of their hazards could make them a safer option to traditional fuels. However, for commercial use at this stage, there exist several uncertainties due to inadequate studies, and technological immaturity. This study provides an insight into fire and explosion accident causation and prevention, including the prospect of using alternative fuels for mitigating fire and explosion risks in maritime transportation

    Reporting bias in medical research - a narrative review

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    Reporting bias represents a major problem in the assessment of health care interventions. Several prominent cases have been described in the literature, for example, in the reporting of trials of antidepressants, Class I anti-arrhythmic drugs, and selective COX-2 inhibitors. The aim of this narrative review is to gain an overview of reporting bias in the medical literature, focussing on publication bias and selective outcome reporting. We explore whether these types of bias have been shown in areas beyond the well-known cases noted above, in order to gain an impression of how widespread the problem is. For this purpose, we screened relevant articles on reporting bias that had previously been obtained by the German Institute for Quality and Efficiency in Health Care in the context of its health technology assessment reports and other research work, together with the reference lists of these articles

    Toxin-Based Therapeutic Approaches

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    Protein toxins confer a defense against predation/grazing or a superior pathogenic competence upon the producing organism. Such toxins have been perfected through evolution in poisonous animals/plants and pathogenic bacteria. Over the past five decades, a lot of effort has been invested in studying their mechanism of action, the way they contribute to pathogenicity and in the development of antidotes that neutralize their action. In parallel, many research groups turned to explore the pharmaceutical potential of such toxins when they are used to efficiently impair essential cellular processes and/or damage the integrity of their target cells. The following review summarizes major advances in the field of toxin based therapeutics and offers a comprehensive description of the mode of action of each applied toxin

    Teaching the German case system: A report on classroom practice

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    ใƒ‰ใ‚คใƒ„่ชžใฏ่‹ฑ่ชžใจๆฏ”ในใ‚‹ใจ็ฟ’ๅพ—ใŒ้›ฃใ—ใ„ใจใ„ใ‚ใ‚Œใ‚‹ใ€‚็ฟ’ๅพ—ใŒ้›ฃใ—ใ„็†็”ฑใจใ—ใฆๆŒ™ใ’ใ‚‰ใ‚Œใ‚‹ใฎใŒใƒ‰ใ‚คใƒ„่ชžใฎๆ ผๅค‰ๅŒ–ใงใ‚ใ‚‹ใ€‚ใ“ใ‚Œใพใงใฎใƒ‰ใ‚คใƒ„่ชžๆ•™็ง‘ๆ›ธใฏ1ใคใฎ่ชฒใง4ใคใฎใ™ในใฆใ‚’ๆ‰ฑใ„ใ€ๆ ผๅค‰ๅŒ–ใ‚’ไธ€ๅบฆใซๅญฆ็ฟ’ใ™ใ‚‹ใ‚ˆใ†ใซ็ทจ้›†ใ•ใ‚ŒใŸใ‚‚ใฎใŒๅคšใๅ‡บ็‰ˆใ•ใ‚ŒใฆใใŸใ€‚ใ—ใ‹ใ—่ฟ‘ๅนดๆ ผ็ฟ’ๅพ—ใฎ็ ”็ฉถใฎๆˆๆžœใ‚’ใ‚‚ใจใซใ—ใŸ4ๆ ผ้‡่ฆ–ใฎๆ–ฐใ—ใ„ใ‚ฟใ‚คใƒ—ใฎๆ•™็ง‘ๆ›ธใŒๅ‡บ็‰ˆใ•ใ‚Œใ‚‹ใ‚ˆใ†ใซใชใฃใฆใใฆใ„ใ‚‹ใ€‚ๆœฌๅ ฑๅ‘Šใงใฏใ€ใพใŸ่จ€่ชž้กžๅž‹่ซ–ใฎ่ฆ–็‚นใ‹ใ‚‰ๆ ผใฎ่งฃ่ชฌใ‚’่กŒใฃใฆใ„ใ‚‹ๅ…ˆ่กŒใฎๅฎŸ่ทตใ‚’ๅ‚่€ƒใซใ—ใชใŒใ‚‰ใ€ๆ–ฐใ—ใ„ใ‚ฟใ‚คใƒ—ใฎๆ•™็ง‘ๆ›ธใ‚’ไฝฟ็”จใ—ใŸๆŽˆๆฅญๅฎŸ่ทตใซใคใ„ใฆๅ ฑๅ‘Šใ™ใ‚‹
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