The Big Ten Conferences     

William Deutsch 《Performance Improvement》1982,21(6):56-57

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B. F. Skinner. Reflections on behaviorism and society. Englewood Cliffs,NJ: Prentice Hall, 1978, xii + 209 pp., $15.95     

William E. Roweton 《Psychology in the schools》1979,16(3):459-460

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Science Fiction and Philosophy: From Time Travel to Superintelligence by Susan Schneider,Editor     

Matthew H. Hersch 《Journal of American culture (Malden, Mass. : 2003)》2009,32(4):355-356

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Individually responsive instruction: Sherman,Thomas M. The instructional design library,In Danny G Langdon (Ed.), (Vol. 17). Englewood Cliffs,NJ: Educational Technology Publications, 1978. 55pp., $9.95     

Diane Dormant  Barry William 《Performance Improvement》1980,19(3):32-32

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Interjudge agreement in classifying students as learning disabled     

Susan Epps  Matthew McGue  James E. Ysseldyke 《Psychology in the schools》1982,19(2):209-220

Eighteen judges with backgrounds in assessment, decision making, and learning disabilities were asked to use an array of information to differentiate learning disabled and nonlearning disabled students. Each judge was provided with forms containing information on 42 test or subtest scores of 50 school-identified LD students and 49 non-LD students. Judges were extremely inaccurate in their classifications and in little agreement with each other. Also, it appeared that different judges emphasized different factors when making their decisions. The results suggest that, given current definitions of the condition called “learning disabilities,” there is considerable doubt that school personnel can accurately and reliably identify such students.  相似文献   

Compelled Disclosure of Scientific Research Data     

William Gardner 《The Information Society》2013,29(2):141-146

Federal legislation requires that research produced with federal funding be available to the public under the Freedom of Information Act. I raise a concern that this power might be used to harass scientists. The goal of data sharing, however, is important, and should be facilitated through electronic data archiving.  相似文献   

Failure of chronometers     

William Ellis 《Journal of The Franklin Institute》1866,82(2):98-99

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Considerations on the loss of the “London”     

William Fairbairn 《Journal of The Franklin Institute》1866,81(6):374-377

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Biomechanics of aggressive inline skating: landing and balancing on a grind rail     

Major MJ  Beaudoin AJ  Kurath P  Hsiao-Wecksler ET 《Journal of sports sciences》2007,25(12):1411-1422

Currently, only epidemiological injury data have been reported for the new extreme sport of aggressive inline skating, or trick skating. No studies have examined the biomechanics of this sport, which involves repetitive jumping and landing from railings, ramps, and ledges, often over 1 m in height. We present results of a pilot study that examined the effect of skater experience and lower extremity biomechanics on energy absorption ability, and observed balance strategies used during two basic tricks. In these tricks, the skater jumps onto an elevated rail and maintains balance while standing in a single position (stall) or sliding along the rail (grind). Lower extremity joint kinematics, impact force characteristics, and general movement behaviours were examined during landing and balance phases. Ten male skaters performed ten stalls and ten frontside grinds on an instrumented grind rail, capable of measuring vertical force. Vertical impact force was found to decrease with increasing skater experience in stalls (r = -0.84, P = 0.002) and grinds (r = -0.84, P = 0.009). This might imply that less-experienced skaters are (subconsciously) more concerned about maintaining balance than refining technique to minimize impact force. Similar to drop landing experiments, peak impact force decreased with increasing knee flexion during stalls (r = -0.65, P = 0.04). During stalls, skaters demonstrated classic balance maintenance strategies (ankle, hip, or multi-joint) depending on trick length. During grinds, skater centre of mass never passed over the rail base of support, suggesting the use of momentum produced from obliquely approaching the rail.  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