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排序方式: 共有366条查询结果,搜索用时 15 毫秒
91.
92.
Sang-Yeon Kim Scott S. Graham Seokhoon Ahn Michele K. Olson Daniel J. Card Molly M. Kessler 《Communication methods and measures》2016,10(4):217-232
This study demonstrates that NVivo, a popular research tool for content analysis, produces biased Cohen’s kappa as it calculates the reliability statistic at the character level, which is unsuitable for most content-analytic studies adopting a higher unit of analysis (e.g., sentence, paragraph). Based on empirical data and a statistical simulation, this study proposes a method of bias correction applicable to situations where two independent raters conduct binary coding. 相似文献
93.
Michele Schweisfurth 《Compare》1999,29(3):331-340
This paper considers how case study approaches may be used cross‐nationally. It outlines five key stages in the process of conducting case study research and of learning from it: selection, verification, cumulation, generalisation, and application. The research used to illustrate these principles is a study of teachers’ experiences of changes in education in post‐communist Russia and post‐apartheid South Africa. 相似文献
94.
Career progress in centralized academic systems: Social capital and institutions in France and Italy
We analyze the role of social capital in academic careers. We distinguish between ties with reputed scientists and laboratories (scientific and technical human capital) and ties with influential actors with respect to recruitment/promotion decisions (political capital). We use institution-wise bibliometric indicators to measure separately the two types of capital for a large sample of French and Italian academic physicists between 2000 and 2003/2005. Controlling for scientific productivity, seniority and gender issues, career progress is explained by: the scientist's affiliation to important public research organizations (scientific and technical human capital - France); his/her social ties with senior members of the discipline, who exercise control over careers (political capital - Italy), and the commitment to work with senior colleagues in his/her own university (political capital - Italy). Significant differences exist between the two countries also with respect to the importance of productivity, seniority, and gender. 相似文献
95.
96.
In 1998, the University of Florida Health Science Center Libraries (HSCL) developed and implemented a Liaison Librarian Program, dedicated to providing customized, subject-specific services to the faculty, students, clinicians, researchers, staff, and administrators of the six Health Science Center Colleges (Dentistry, Health Professions, Medicine, Nursing, Pharmacy, and Veterinary Medicine). Subject- and role-specific (clinical vs. basic sciences) liaisons were assigned. This paper describes the HSCL liaison program, exemplified by the liaisons' work with the College of Veterinary Medicine. Preliminary program evaluation, a pilot project developed to discern the needs of the veterinary medicine clientele and facilitate awareness of liaison services, and subsequent re-evaluation of patron awareness and satisfaction are also discussed. 相似文献
97.
Craig M. Whitworth-Turner Rocco Di Michele Ian Muir Warren Gregson Barry Drust 《European Journal of Sport Science》2019,19(5):576-584
The current study examined how sleep may be influenced by the scheduling of training and match load within 10 youth-soccer players. Sleep was measured over a 14-day in-season period using a commercially available wireless sleep monitor. Each collected sleep variable; lights out, sleep latency, total sleep time wake after sleep onset and final awakening, was compared for the specific day within the training schedule (e.g. match day [MD], day after match [MD?+?1]) and to training/match load (high-speed distance (>5.5 m/s) [HSD] and rating of perceived exertion. The data were analysed using mixed models and effect sizes, to describe the magnitude of effects that training schedule and training load may have on sleep. A reduction of sleep duration was observed on the day after the match (MD?+?1) in relation to the training days preceding the match (MD-2: ?65 min, ES: 0.89?±?0.79; MD-1 ?61 min, ES: 0.82?±?0.64) and reduction on match day (+45 min; ES: 1.91?±?1.69). This may suggest youth-soccer players actively change their sleep scheduling behaviours in relation to the imposed soccer schedule. Increased high-speed running (for every 100 m) showed a small increase to total sleep time (+9 min; ES: 0.48?±?0.31). This may suggest that increases in training load may be associated with small increases in sleep quantity. Such observations may highlight that the type of day and the associated load within the training microcycle may have important consequences for sleep within youth-soccer players. 相似文献
98.
Michele Schweisfurth 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》2005,23(1):219-234
Some 7400 schools belong to the global network of UNESCO’s Associated School Project Network. They are committed to promoting ideals such as human rights, intercultural understanding, peace and environmental protection. This study is based on an extensive review undertaken in 2003. It discusses the origins and analyzes the achievements of the Associated School Project Network in bringing change to schools, communities and national policy. The analysis employs a variety of models of educational innovation and reform in order to assess the horizontal and vertical impact of the Associated School Project Network. It draws general conclusions on the usefulness of such networks for intercultural learning and educational and social change. Key issues include the commitment of stakeholders; the treatment of culturally sensitive issues; cultural interpretations of certain subjects; the value of horizontal networks; and the difficulty of achieving vertical impact on national policy-making. 相似文献
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100.
Zanca GG Oliveira AB Saccol MF Ejnisman B Mattiello-Rosa SM 《Journal of sports sciences》2011,29(15):1603-1611
In this study, we evaluated the peak torque, functional torque ratios, and torque curve profile of the shoulder rotators in overhead athletes with impingement symptoms so as to examine possible alterations in response to sports training and shoulder pain. Twenty-one overhead athletes with impingement symptoms were compared with 25 overhead athletes and 21 non-athletes, none of whom were symptomatic for impingement. The participants performed five maximal isokinetic concentric and eccentric contractions of medial and lateral shoulder rotations at 1.57 rad · s(-1) and 3.14 rad · s(-1). Isokinetic peak torque was used to calculate the eccentric lateral rotation-to-concentric medial rotation and the eccentric medial rotation-to-concentric lateral rotation ratios. An analysis of the torque curve profiles was also carried out. The eccentric lateral rotation-to-concentric medial rotation torque ratio of asymptomatic athletes was lower than that of non-athletes at both test velocities. The concentric medial rotation isokinetic peak torque of the asymptomatic athletes, at 3.14 rad · s(-1), was greater than that of the non-athletes, and the peak appeared to occur earlier in the movement for athletes than non-athletes. These findings suggest that there may be adaptations to shoulder function in response to throwing practice. The eccentric medial rotation-to-concentric lateral rotation torque ratio was altered neither by the practice of university-level overhead sports nor impingement symptoms. 相似文献