Book Reviews     

Charles Oppenheim  Huw Alexander  Charles Oppenheim  Cliff Morgan 《Learned Publishing》2007,20(2):156-158

Open Access: Key Strategic, Technical and Economic Aspects Edited by Neil Jacobs Chandos Publishing, 2006. 250 pp. ISBN 1‐84334‐203‐0, £39.95, pbk ISBN 1‐84334‐204‐9, £57.00, hbk Selling Rights, 5th edn Lynette Owen Routledge, 2006. 384 pp. ISBN 978‐0‐415‐36280‐1, £75.00 hbk ISBN 978‐0‐415‐38652‐4, £29.95 pbk Bound by Law? Tales from the Public Domain by Keith Aoki, James Boyle and Jennifer Jenkins Duke Law School Center for the Study of the Public Domain, 2006. 76 pp. ISBN 0‐974‐15531‐4, $5.95, pbk. Freely available online at http://www.law.duke.edu/cspd Digital Preservation Marilyn Deegan Simon Tanner Facet Publishing, 2006, Digital Futures Series. 288 pp. ISBN 978‐1‐85604‐485‐1, £39.95, hbk.  相似文献   

Research in Continuing Education—The Impact of Episodic Funding1     

Chris Duke 《Higher Education Quarterly》1996,50(3):207-225

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Confirmatory factor analysis of the Test of Performance Strategies (TOPS) among adolescent athletes     

Lane AM  Harwood C  Terry PC  Karageorghis CI 《Journal of sports sciences》2004,22(9):803-812

The aim of the present study was to examine the factorial validity of the Test of Performance Strategies (TOPS; Thomas et al., 1999) among adolescent athletes using confirmatory factor analysis. The TOPS was designed to assess eight psychological strategies used in competition (i.e. activation, automaticity, emotional control, goal-setting, imagery, negative thinking, relaxation and self-talk,) and eight used in practice (the same strategies except negative thinking is replaced by attentional control). National-level athletes (n = 584) completed the 64-item TOPS during training camps. Fit indices provided partial support for the overall measurement model for the competition items (robust comparative fit index = 0.92, Tucker-Lewis index = 0.88, root mean square error of approximation = 0.05) but minimal support for the training items (robust comparative fit index = 0.86, Tucker-Lewis index = 0.81, root mean square error of approximation = 0.06). For the competition items, the automaticity, goal-setting, relaxation and self-talk scales showed good fit, whereas the activation, emotional control, imagery and negative thinking scales did not. For the practice items, the attentional control, emotional control, goal-setting, imagery and self-talk scales showed good fit, whereas the activation, automaticity and relaxation scales did not. Overall, it appears that the factorial validity of the TOPS for use with adolescents is questionable at present and further development is required.  相似文献   

personal development through schooling     

Chris D. Kehas 《Counselor Education & Supervision》1975,14(4):246-247

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Prediction of maximum oxygen consumption from walking, jogging, or running     

Larsen GE  George JD  Alexander JL  Fellingham GW  Aldana SG  Parcell AC 《Research quarterly for exercise and sport》2002,73(1):66-72

The purpose of this study was to develop a submaximal, 1.5-mile endurance test for college-aged students using walking, jogging, or running exercise. College students (N = 101: 52 men, 47 women), ages 18-26years, successfully completed the 1.5-mile test twice, and a maximal graded exercise test. Participants were instructed to achieve a "somewhat hard" exercise intensity (rating of perceived exertion = 13) and maintain a steady pace throughout each 1.5-mile test. Multiple linear regression generated the following prediction equation: VO2 max = 65.404 + 7.707 x gender (1 = male; 0 =female) - 0.159 x body mass (kg) - 0.843 x elapsed exercise time (min; walking, jogging orrunning). This equation shows acceptable validity (R = .86, SEE = 3.37 ml x kg(-1) min(-1)) similar to the accuracy of comparable field tests, and reliability (ICC = .93) is also comparable to similar models. The statistical shrinkage is minimal (R(press) = 0.85, SEE(press) = 3.51 ml x kg(-) x min(-1)); hence, it should provide comparable results when applied to other similar samples. A regression model (R =.90, and SEE = 2.87 ml x kg(-1) min(-1)) including exercise heart rate was also developed: VO2 max = 100.162 +/- 7.301 x gender(1 = male; 0 =female) - 0.164 x body mass (kg) - 1.273 x elapsed exercise time -0.156 x exercise heart rate, for those who have access to electronic heart rate monitors. This submaximal 1.5-mile test accurately predicts maximal oxygen uptake (VO2max) without measuring heart rate and is similar to the 1.5-mile run in that it allowsfor mass testing and requires only a flat, measured distance and a stopwatch. Further, it can accommodate a wide range of fitness levels (from walkers to runners).  相似文献   

Imagery use in elite youth sport participants: reinforcing the applied significance of achievement goal theory     

Harwood C  Cumming J  Hall C 《Research quarterly for exercise and sport》2003,74(3):292-300

This study examined the motivational profiles of elite youth athletes to determine whether individual differences in goal orientation corresponded with differential levels of imagery use. Two hundred ninety male (n = 88) and female (n = 202) young athletes (M = 16.6 years, SD = 1.48) completed the Perceptions of Success Questionnaire (POSQ, Roberts, Treasure, & Balague, 1998) to assess dispositional goal orientations and the Sport Imagery Questionnaire (Hall, Mack, Paivio, & Hausenblas, 1998) to assess frequency and function of imagery use. A two-stage cluster analysis on the POSQ scores revealed a three-cluster solution with a multivariate analysis of variance indicating significant differences among cluster groups in imagery use. Athletes in Cluster 3 (higher task/higher ego) used significantly more imagery, regardless of the function than athletes in Cluster 1 (lower task/moderate ego) or Cluster 2 (moderate task/lower ego). These findings are discussed with reference to the role of achievement motivation in influencing young athletes' behavioral investments in mental strategies.  相似文献   

The performance environment of the England youth soccer teams     

Pain MA  Harwood C 《Journal of sports sciences》2007,25(12):1307-1324

In the present study, we examined the performance environment of the England youth soccer teams. Using a semi-structured protocol with a prospective sample, national coaches (n = 6), sport scientists (n = 3), and players (n = 4) were interviewed directly following international tournaments about the factors that positively and negatively influenced performance. Qualitative content analysis revealed the following factors as major positive influences on performance: adhering to a consistent tournament strategy, player understanding, strong team cohesion, organized entertainment activities, detailed knowledge of opposition, an effective physical rest/recovery strategy, and previous tournament experience. Major factors perceived to have negatively influenced performance included: over-coaching, player boredom, player anxiety, physical superiority of the opposition, physical fatigue over the tournament, problems sleeping, and lack of information on the opposition. Eight overall dimensions emerged to describe the performance environment: planning and organization, physical environment, tactical factors, development and performance philosophy, psychological factors, physical factors, social factors, and coaching. The findings support recent work that suggests the performance environment is multifaceted, with performance being contingent upon a broad range of interacting factors that go beyond the traditional psychosocial and physical domains.  相似文献   

Eyes Wide Shut: Recent Educational Policy in the Light of Changing Notions of English Identity*     

Chris Kearney 《English in Education》2000,34(3):19-30

Although Curriculum 2000 includes some welcome changes, such as the inclusion of drama, it is essentially a missed opportunity. I argue that it fails to address the complexity of modern life. In many academic areas, including literature, issues of identity are central to fundamental debates. Such debates have been precipitated by increasing economic globalisation and the consequent increase in interdependence between people from diverse cultural heritages. Although this situation is not new, the social and technological changes of recent decades have altered the pace of such developments. In most cities school populations reflect such changes. In this paper I argue that there are substantial gaps in the curriculum which derive mainly from government policy being premised on crude and obsolete notions of English identity. Such notions lead to a confusion of the concepts of culture and citizenship as modes of belonging. In my view both of these factors severely constrain our ability to construct a critical curriculum which adequately addresses contemporary interests and dilemmas.  相似文献   

The Peter Shaw Memorial Award acceptance address: Constructive mischief at U-wisconsin     

Donald Alexander Downs 《Academic Questions》2007,20(1):71-74

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The effect of periodized resistance training on accelerative sprint performance     

Moir G  Sanders R  Button C  Glaister M 《Sports biomechanics / International Society of Biomechanics in Sports》2007,6(3):285-300

The purpose of this study was to assess the effect of periodized resistance training on accelerative sprint performance. Sixteen physically active men participated in a randomized controlled study. An experimental group (n = 10) completed an 8-week periodized resistance training intervention, while a control group (n = 6) did not train. Pre- and post-training measures of 20-m straight-line sprint time, including a 10-m split, maximum strength, and explosive strength, were recorded. Flight time, stance time, stride length, and stride frequency were quantified from digitized video recordings of the first three strides of the 20-m sprint. Resistance training resulted in significant increases in maximum strength (parallel back squat: 19%) and explosive strength (6-10%). However, both groups increased 0-10 m sprint times (experimental group = 6%; control group = 3%) while 10-20m times were reduced (experimental group = 7%; control group = 4%), highlighting the mechanical differences between the distinct sprint phases. The change during the 0-10m interval was accompanied by a reduction in stride frequency during the first three strides. Strength coaches should be aware that the potential benefits of increased muscular strength during short sprints are likely to be affected by mechanical specificity and that improvements in sprinting performance may not occur immediately after a period of resistance training.  相似文献