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Cerebral activity, as reflected by power in the alpha waveband (8-13 Hz), was examined prior to the performance of three tasks with different effort and accuracy requirements. The study aimed to further investigate changes in activity observed in an earlier study in which expert karate performers exhibited significant increases in alpha band power during preparation for a training task. In contrast to the earlier research, the high effort task produced a significant decrease in 'alpha' power prior to performance. 'Alpha' power prior to the high accuracy task showed significant differences mediated by the outcome. Successful performance was preceded by higher levels of 'alpha' power than unsuccessful attempts. The reported use of a cognitive strategy on the first task produced a significant difference in activity, lower alpha power being associated with the use of such a technique. 相似文献
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Collins B Linton A Merril J Pomerantz K Winthrop S 《Medical reference services quarterly》1992,11(4):1-9
Computers are integral to medical practice, education, and research. While medical students learn computer skills during their training, many practicing physicians do not have the same computer experience. To familiarize this group with the exciting developments in medical informatics, the Himmelfarb Health Sciences Library and Department of Computer Medicine at the George Washington University Medical Center organized a workshop "Introducing Your Office Computer!" for attending physicians. The workshop featured a short lecture/video presentation on computer applications in medicine followed by a "computer fair" of five computer applications. Eleven physicians attended the workshop. Feedback was very positive; many called later to request more detailed instructions on using the programs demonstrated. It was a valuable experience for the staff, and new bridges were built between departments and clients. 相似文献
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This article reports on a large‐scale international survey of authors' perception and experience of the journals system conducted by ciber in association with National Opinion Polls (NOP). It explores the factors that inform authors' decisions where to publish and, in particular, which groups of readers they perceive to be most important. It probes readership behaviour and the values that underlie authors' attitudes towards copyright and emerging business models, notably open access. It is concluded that many aspects of author behaviour are highly conservative and that a significant shift towards open access is, in the short to medium term, highly unlikely. 相似文献
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EDITORS' PREFACE 总被引:1,自引:0,他引:1
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Dave O'Brien 《Journal of Cultural Economy》2016,9(2):127-140
This paper considers the use of evidence for government decision-making using ethnographically informed data from the lived experiences of those involved in British cultural policy. It does this in order to engage and extend work that has sought to defend bureaucratic forms of activity. The paper offers an empirical case study of how the civil servants’ ethic of office [DuGay, P. (2008) ‘Max weber and the moral economy of office’, Journal of Cultural Economy, vol. 1, no. 2, pp. 129–144] is reinforced by the identity of the social scientist. The use of social science in policy advice is a moment where the bureaucrats are able to distance themselves from political decision-making, thus reasserting an important aspect of civil service practice and identity. However, as the latter part of the article illustrates, the dynamics of cultural policy-making, in particular the use of economics, situate the role of social science as paradoxical. It is both supportive and corrosive of the bureaucratic ethic. This paradox is the basis for a critical perspective on the ethic of office as deployed in contemporary government. 相似文献