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排序方式: 共有5626条查询结果,搜索用时 15 毫秒
61.
朱迪光 《安庆师范学院学报(社会科学版)》2001,20(4):51-55
中国古代曾出现的将神话传说本身改造成历史的神话历史化运动 ,使中国古代的体系神话不同于古希腊的体系神话 ,并且由于神话历史化内容不仅是将神话传说的内容改造成历史甚至是现实内容 ,而且还包含着将现实的人物神化、将现实内容非现实化倾向 ,致使中国古代的叙事文 ,无论是历史叙事文、志怪类叙事文 ,还是文学叙事文都受其影响 相似文献
62.
Silvia Fantozzi Andrea Giovanardi Fabrício Anício Magalhães Rocco Di Michele Matteo Cortesi Giorgio Gatta 《Journal of sports sciences》2016,34(11):1073-1080
The analysis of the joint kinematics during swimming plays a fundamental role both in sports conditioning and in clinical contexts. Contrary to the traditional video analysis, wearable inertial-magnetic measurements units (IMMUs) allow to analyse both the underwater and aerial phases of the swimming stroke over the whole length of the swimming pool. Furthermore, the rapid calibration and short data processing required by IMMUs provide coaches and athletes with an immediate feedback on swimming kinematics during training. This study aimed to develop a protocol to assess the three-dimensional kinematics of the upper limbs during swimming using IMMUs. Kinematics were evaluated during simulated dry-land swimming trials performed in the laboratory by eight swimmers. A stereo-photogrammetric system was used as the gold standard. The results showed high coefficient of multiple correlation (CMC) values, with median (first–third quartile) of 0.97 (0.93–0.95) and 0.99 (0.97–0.99) for simulated front-crawl and breaststroke, respectively. Furthermore, the joint angles were estimated with an accuracy increasing from distal to proximal joints, with wrist indices showing median CMC values always higher than 0.90. The present findings represent an important step towards the practical use of technology based on IMMUs for the kinematic analysis of swimming in applied contexts. 相似文献
63.
Mohamed Saifeddin Fessi Nidhal Zarrouk Valter Di Salvo Cristoforo Filetti Alan R. Barker 《Journal of sports sciences》2016,34(24):2189-2194
ABSTRACTThis study aimed to examine: (i) the effect of decreasing training load (TL) during taper weeks on physical match activities in professional soccer players, and (ii) to disclose the relationship between weekly TL and physical match activities. Rating of perceived exertion was collected after each training session and match to quantify the TL in 19 professional players over 17 standard and 7 taper weeks during the season. Physical match activities were quantified by a computerised match analysis system and compared between standard training and taper weeks. Compared to standard weeks, the duration and frequency of training sessions during the taper weeks decreased (?21.7% and ?18.8%, respectively; P < 0.01) with no change in intensity (?4.8%; P = 0.09). Consequently, the weekly TL decreased during the taper weeks (?25.5%; P < 0.01). Increases in distance covered by intense running (+15.1%; P < 0.05), high-intensity running (HIR) (+15.7%; P < 0.01), number of sprints (+17.8%; P < 0.05) and number of high-speed runs (+15.7%; P < 0.05) were observed during the seven matches played after the taper weeks. High relationships were observed between TL and HIR distance covered, number of HIR and number of sprints (r = ?0.53; r = ?0.55; r = ?0.65, respectively; P < 0.01). Decreasing TL during taper weeks by reducing training duration and frequency but maintaining intensity was associated with an increase in physical activities during matches. However, it needs to be determined whether tapering or other match factors led to the changes in match activity. 相似文献
64.
随着我国成功申办2022年冬奥会,我国将大力发展冰雪运动,并会随之带动旅游、经济和冰雪装备制造业的发展。而冰雪装备制造业的发展直接影响我国冰雪体育事业的开展。采用文献资料、调查、系统分析等研究方法,针对黑龙江省冰雪装备制造业的创新成长问题进行研究,并对黑龙江省的冰雪装备制造业创新成长影响要素以及企业创新成长存在的问题进行分析与总结,认为黑龙江省冰雪装备制造业创新成长的总体状况是良好的,但企业存在资金短缺,经营、管理、技术等方面人才匮乏,企业产品结构单一、产品科技创新意识和能力不强,欠缺可持续发展理念等问题。通过分析影响冰雪装备制造业创新成长的原因,提出引进与自我创新相结合、注重品牌质量、发扬政府主导优势等战略,旨为冰雪装备制造业在黑龙江省的发展提供理论依据。 相似文献
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67.
关于《民办教育促进法》及其实施 总被引:8,自引:0,他引:8
《民办教育促进法》是一部当前所能达到的规范民办教育健康有序发展的较好的政策法规。它具有相对的合理性与可行性 ,但也有许多不完善之处。实施细则可以有所补充、完善 ,以利于《促进法》的正确运用。 相似文献
68.
潘金林 《西北成人教育学报》2003,(4):22-23
随着师范格局的大规模调整,如何实现教师教育可持续发展的问题凸现出来。本文从教育质量、师资队伍、学校规模三个方面论述了教师教育的可持续发展。 相似文献
69.
Jiří Baláš David Giles Jan Kodejška Michaela Panáčková Simon Fryer 《European Journal of Sport Science》2016,16(7):764-772
This study aimed to (1) evaluate the effect of hand shaking during recovery phases of intermittent testing on the time–force characteristics of performance and muscle oxygenation, and (2) assess inter-individual variability in the time to achieve the target force during intermittent testing in rock climbers. Twenty-two participants undertook three finger flexor endurance tests at 60% of their maximal voluntary contraction until failure. Performances of a sustained contraction and two intermittent contractions, each with different recovery strategies, were analysed by time–force parameters and near-infrared spectroscopy. Recovery with shaking of the forearm beside the body led to a significantly greater intermittent test time (↑ 22%, P?.05), force–time integral (↑ 28%, P?.05) and faster muscle re-oxygenation (↑ 32%, P?.05), when compared to the hand over hold condition. Further, the ratio of intermittent to continuous test time distinguished specific aerobic muscular adaptations among sport climbers (2.02), boulderers (1.74) and lower grade climbers (1.25). Lower grade climbers and boulderers produced shorter duration contractions due to the slower development of target force during the intermittent test, indicating worse kinaesthetic differentiation. Both the type of recovery and climbing discipline determined muscle re-oxygenation and intermittent performance in rock climbers. 相似文献
70.
潘荣亮 《现代远程教育研究》2007,(3):58-60
基层电大师资队伍建设是基层电大发展的关键。基层电大外聘兼职教师的特点与作用以及基层电大自身的特点和条件,都决定了基层电大必须从根本上重视外聘兼职教师队伍的建设。实践表明,建台帐、定条件、明职责、重评估、善激励、讲凝聚、倡师德、强素质,是基层电大加强兼职教师队伍建设的有效举措。 相似文献