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31.
Oliver Joseph Steve Hodges Georgia W. Moore James N. Cohen Allan Jang Yoonsun Brown Scott A. Kwon Kyung A. Jeong Sophia Raven Sara P. Jurkiewicz Melissa Robertson Tom P. 《Research in Science Education》2019,49(6):1783-1808
Research in Science Education - Research into the efficacy of modules featuring dynamic visualizations, case studies, and interactive learning environments is reported here. This quasi-experimental... 相似文献
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This article tells the story of the University of Colorado Law Library's successful effort to develop its first digital archive. The sudden death of the law school's dean was the catalyst for this project, with a goal to unveil the archive at a memorial symposium scheduled nine months in the future. The University of Colorado Law Library staff had never tackled a project of this type or scale before. This article discusses the technological, cataloging, and management issues that were encountered during the project. It also provides advice and tips on how librarians in their own institutions can accomplish such a project. 相似文献
35.
Andry Vrachimi‐Souroulla Georgia Panayiotou Constantinos M. Kokkinos Iasonas Lamprianou 《教育心理学》2011,31(1):105-121
The study aimed to field‐test a Greek version of the Wechsler Quicktest and to examine its psychometric properties. The Quicktest was individually administered to 208 students, aged 5–14 years, along with a reading test. Based on the Rasch analysis, data for the Quicktest subtests showed acceptable fit to the model. Also, correlations were found between the Quicktest subtests. Moreover, the Quicktest was significantly correlated to school grades, teachers’ predictions, scores on the Learning Disability Evaluation Scale (LDES) and Trigka’s Reading Test. A Spearman analysis indicated significant correlations between scores on the Quicktest subtests and the grade level of students. Also, a regression analysis indicated that scores on the Quicktest can predict the scores on the other measures. Results supported the Quicktest’s criterion‐related validity and construct validity and, also, its utility as part of a systematic diagnostic procedure for learning disabilities. 相似文献
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Tennis coaches often use the fundamental throwing skill as a training tool to develop the service action. However, recent skill acquisition literature questions the efficacy of non-specific training drills for developing complex sporting movements. Thus, this study examined the mechanical analogy of the throw and the tennis serve at three different levels of development. A 500 Hz, 22-camera VICON MX motion capture system recorded 28 elite female tennis players (prepubescent (n = 10), pubescent (n = 10), adult (n = 8)) as they performed flat serves and overhand throws. Two-way ANOVAs with repeated measures and partial correlations (controlling for group) assessed the strength and nature of the mechanical associations between the tasks. Preparatory mechanics were similar between the two tasks, while during propulsion, peak trunk twist and elbow extension velocities were significantly higher in the throw, yet the peak shoulder internal rotation and wrist flexion angular velocities were significantly greater in the serve. Furthermore, all of these peak angular velocities occurred significantly earlier in the serve. Ultimately, although the throw may help to prime transverse trunk kinematics in the serve, mechanics in the two skills appear less similar than many coaches seem to believe. Practitioners should, therefore, be aware that the throw appears less useful for priming the specific arm kinematics and temporal phasing that typifies the tennis serve. 相似文献
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Brandon A. Baiamonte Robert R. Kraemer Chelsea N. Chabreck Matthew L. Reynolds Kayla M. McCaleb Georgia L. Shaheen 《Journal of sports sciences》2017,35(18):1831-1837
Previous research has demonstrated significant decreases in pain perception in healthy individuals following both aerobic and upper body resistance exercise, but research on circuit training has been limited. The purpose of the study was to determine the effects of a strenuous bout of dynamic circuit resistance exercise on pain threshold and pain tolerance in conjunction with changes in blood lactate levels, heart rate (HR), and perceived exertion. A sample of 24 college-age students participated in 2 sessions: (1) a maximal strength testing session and (2) a circuit training bout of exercise that consisted of 3 sets of 12 repetitions with a 1:1 work to rest ratio at 60% one-repetition maximum (1-RM) predicted from a three-repetition maximum (3-RM) for 9 exercises. Participants exhibited increases in pain tolerance, blood lactate levels, HR and perceived exertion following resistance exercise. Preference for exercise intensity was positively correlated with lactate post exercise and tolerance for exercise intensity was positively correlated with pain tolerance and lactate post exercise. In conclusion, this is the first study to demonstrate increases in pain tolerance following a dynamic circuit resistance exercise protocol and disposition for exercise intensity may influence lactate and pain responses to circuit resistance exercise. 相似文献
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美国的体育与竞技运动:两者的比较与对照 总被引:4,自引:0,他引:4
在美国,体育与竞技运动是两个不同的领域,但彼此又密切联系。章从美国学术界的角度粗略地叙述和讨论了体育与竞技运动的基本概念,以及两的不同与联系之处。 相似文献
39.
Georgia Liarakou Costas Gavrilakis Eleni Flouri 《Journal of Science Education and Technology》2009,18(2):120-129
Investigating knowledge, perceptions as well as attitudes of public that concern various aspects of environmental issues is
of high importance for Environmental Education. An integrated understanding of these parameters can properly support the planning
of Environmental Education curriculum and relevant educational materials. In this survey we investigated knowledge and attitudes
of secondary school teachers in Greece towards renewable energy sources, particularly wind and solar energy systems. A questionnaire
with both open and close questions was used as the main methodological instrument. Findings revealed that although teachers
were informed about renewable energy sources and well disposed towards these sources, they hardly expressed clear positions
regarding several issues about wind and solar energy technologies and farms. Moreover such themes are limited integrated in
teaching either as extra curricular educational programs or through the curriculum. These findings cannot confirm that teachers
could influence students’ opinion towards renewable energy systems. Thus, authorities should invest more in Environmental
Education and relevant Teachers' Education. 相似文献
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The aim of the present study was to investigate the factors that influence volunteers to become involved in environmental action. The research focused on volunteers undertaking action in summer camps organised by an environmental non-governmental organisation (NGO) in Greece. The results suggest that the environmental issues addressed in volunteer programmes and the standards of volunteer organisations constitute critical predictors of a volunteer’s personal commitment to participation in an organisation. Learning and contact with nature clearly emerged as the most important factors in volunteer motivation. Furthermore, although the participants considered their environmental knowledge was sufficient to stimulate their action, they also recognised the importance of continuing to deepen that knowledge. Most of the volunteers had participated previously in environmental education (EE), but only a few considered this experience to have influenced their intention to undertake action. Finally, volunteers seemed to believe in the power of citizenship and expressed a high internal locus of control. The findings of this study could enhance NGOs’ understanding of what motivates volunteers and help them improve the quality and effectiveness of their volunteer programmes. EE practitioners could also use these findings to provide people with the proper capabilities to become consciously involved in voluntary environmental action. 相似文献