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我国近10年运动医学临床论著的评价--统计方法评价 总被引:1,自引:0,他引:1
旨在了解我国运动医学临床论著的统计方法现状。本文采用普查法对近10年《中国运动医学杂志》和《体育科学》运动医学栏所刊出的临床论著的统计学方法进行评价。结果发现79.8%(190/238)论文使用了假设检验,其中40.5%(77/190)仅列P值而未说明统计方法;已列出方法论文中存在T检验泛用、条件不满足使用的假设检验方法等错误。提示统计方法中存在较多问题,有待提高。 相似文献
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在重大突发公共卫生事件的背景下,科技论文的临床应用价值被提到前所未有的重要位置。但如何评价这种类型的影响力以及有哪些有效指标仍需要深入挖掘与探索。引文桂冠奖是基于被引频次的诺贝尔生理学或医学奖的预测方法,而未被其预测却最终获得诺贝尔奖的原因可能是传统被引指标无法探测到论文的潜在临床影响力。本文引入美国NIH (National Institutes of Health)提出的论文临床转化潜力近似值指标(approximate potential to translate scores,APT),选择诺贝尔生理学或医学奖得主的论文集为样本,比较被引文桂冠奖预测和未被预测两组作者论文集的总被引次数、加权RCR (relative citation ratio)、被临床论文引用次数、APT均值、Human均值、Animal均值、Mol/Cell (Molecular/Cellular)均值这7项指标,以及转化力三角形模型的差异与指标间的相关性。被预测获奖和未被预测获奖两组论文的总被引次数、加权RCR、Mol/Cell均值有显著差异,未被预测组的Human均值与Animal均值及中位数均高于被... 相似文献
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Sveva Longo Enricomaria Mormina Francesca Granata Domenico Mallamace Marcello Longo Silvia Capuani 《文物保护研究》2018,63(7):383-390
A modern approach to the diagnosis of artistic heritage makes use of non-destructive techniques which avoid damage to artworks or signs of interaction with the analytical technique used. For this reason, today, the employment of X-rays to study artistic heritage is quite widespread. Computed tomography (CT) Imaging was first used as specialized medical diagnostic tool in the early 1970s. Today, CT scanners have become more common, and non-destructive three-dimensional imaging has found an increasing number of uses in different areas such as materials research, geology, archaeology, and museum conservation. In this work, a new generation of clinical CT (based on the Dual Energy and multi-slice acquisition principle) is used to investigate an Egyptian wooden mummy board with a total acquisition time of 93.23 seconds and a voxel size of 0.078?×?0.078?×?1.5?mm. The use of two distinct techniques of image post-processing, the two-dimensional multi-planar reconstruction (MPR) and the three-dimensional volume rendering technique (VRT) allowed us to: evaluate the state of conservation of the mummy board, determine how the wooden object was implemented, recognize a nineteenth-century intervention of consolidation, and advance the hypothesis that the wooden planks were reused. In particular, we highlight the use of the cardiovascular and pulmonary filter with VRT reconstruction, which allows a virtual elimination of different parts of the mummy board to investigate those areas otherwise accessible only by removing parts of the board and thus damaging the work. 相似文献
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John Bramble Shawn Steidinger Claire Hamasu Melissa Austin 《Medical reference services quarterly》2018,37(3):306-311
In hospitals and clinics, anyone who “touches” a patient has a license authorizing them to do so—from the phlebotomist to the cardiologist, from the genetic counselor to the social worker, and so on, except for the clinical medical librarian. This column discusses the intent versus the realities of occupational licensure for clinical medical librarians and provides recommendations for next steps. 相似文献
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Sue Lacey Bryant Helen Bingham Ruth Carlyle Alison Day Linda Ferguson David Stewart 《Health information and libraries journal》2018,35(1):70-77
This article is the fourth in a series on New Directions. The National Health Service is under pressure, challenged to meet the needs of an ageing population, whilst striving to improve standards and ensure decision making is underpinned by evidence. Health Education England is steering a new course for NHS library and knowledge services in England to ensure access to knowledge and evidence for all decision makers. Knowledge for Healthcare calls for service transformation, role redesign, greater coordination and collaboration. To meet user expectations, health libraries must achieve sustainable, affordable access to digital content. Traditional tasks will progressively become mechanised. Alongside supporting learners, NHS librarians and knowledge specialists will take a greater role as knowledge brokers, delivering business critical services. They will support the NHS workforce to signpost patients and the public to high‐quality information. There is a need for greater efficiency and effectiveness through greater co‐operation and service mergers. Evaluation of service quality will focus more on outcomes, less on counting. These changes require an agile workforce, fit for the future. There is a bright future in which librarians’ expertise is used to mobilise evidence, manage and share knowledge, support patients, carers and families, optimise technology and social media and provide a keystone for improved patient care and safety. 相似文献
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Damian Spiteri 《Compare》2019,49(6):888-904
ABSTRACTThis study explores the insights about teaching that student teachers elicit from schools when they go on their first school placements. It thereby offers an appraisal of how student teachers experience teaching when still at the relatively early stages of training and how they are socialised into a role where they become protagonists who can create a positive teaching climate in the classroom. The authors approach this study from the perspective of construction of meanings and consider the discourse that takes place in candidate teacher-student interactions in two university settings – in Malta and China, respectively. The study shows how student teachers believe that cultures and cultural differences need to be clearly considered across the curriculum if schools are to promote active learning equitably. 相似文献
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提出一种基于协同表示的新的目标跟踪算法.在贝叶斯框架下,采用基于重构误差的观测似然函数和考虑遮挡的模型更新机制设计一个鲁棒的跟踪器.用l1范数来建模重构误差以更好地容忍奇异值,同时用协同表示对编码系数进行约束.实验结果表明,和其他算法相比,本文算法能够战胜遮挡、尺度变化、光照变化、背景混乱等干扰因素,具有较高的准确度和鲁棒性. 相似文献
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