2002年全国健美操锦标赛难度动作分析   总被引：12，自引：0，他引：12  

胡湘  周建社  谭惠芳  申锐 《北京体育大学学报》2004,27(2):281-282

通过现场观看比赛和录像观察,对2002年全国健美操锦标赛的男子单人和女子单人项目的前8名的成套动作中的难度动作数量、组别、分值、C组难度动作空中姿态类型,进行统计分析.结果表明,目前我国运动员的成套动作中所选择的四个组别难度动作的比例基本合理,且符合运动员各自的身体素质能力和训练水平,完成质量比往年有很大的提高.但在C组跳与跃类难度动作的选择上缺乏多样性,存在着较多的空中姿态重复现象,与竞技健美操最新发展趋势有一定的差距.  相似文献   

Screening for risk of low energy availability in athletic and recreationally active females in Ireland     

Danielle M. Logue  Sharon M. Madigan  Mirjam Heinen  Sarah-Jane McDonnell  Eamonn Delahunt  Clare A. Corish 《European Journal of Sport Science》2019,19(1):112-122

ABSTRACT

Introduction: Low energy availability (LEA) results in physiological adaptations, which can contribute to unfavourable health outcomes. Little information exists on risk of LEA in active individuals competing in different sports or levels of competition. The aims of this study were to (1) identify risk of LEA in females competing at different levels of competition and (2) investigate associations between risk of LEA, illness and dietary habits. Methods: The validated questionnaire, ‘Low Energy Availability in Females Questionnaire’ was distributed online (November 2016–February 2017) to assess risk of LEA. Twenty-nine additional questions collected information on demographics, illness history and dietary habits. Participants were considered at risk of LEA if they attained a score of?≥?8 and were grouped into: (i) international; (ii) provincial/inter-county; (iii) competitive; and (iv) recreationally active. Chi-square and logistic regression analyses were used to explore differences between those at risk or not at risk of LEA. Results: Risk of LEA was identified in 40% (n?=?331) of 833 participants and was 1.7 and 1.8 times more likely in international and provincial/inter-county athletes compared to those who were recreationally active (International: odds ratios (OR) 1.68, 95% confidence intervals (95%CI) 1.12–2.54; Provincial/inter-county: OR 1.83, 95%CI 1.20–2.77). In participants at risk of LEA, missing >22 days of training during the previous year due to illness occurred 3 times more frequently (OR 3.01, 95%CI 1.81–5.02). Conclusion: Risk of LEA was widespread in this heterogeneous sample. Awareness of LEA and the development of appropriate energy management strategies to ensure athlete health across levels of competition are required.  相似文献   

当今我国政府有效性建设探索     

巴兵  师青伟 《成都教育学院学报》2005,19(2):43-44,51

在我国的社会经济发展过程中,政府的有效性建设是个事关全局的问题,它的妥善解决对于推动社会进步和经济发展具有不言自明的意义.文章试从政府的有效性概念入手,结合我国实际,指出了我国政府有效性建设的努力方向.  相似文献   

集群与容灾技术在数据库高可用性的应用研究     

崔宇红  文平 《图书馆工作与研究》2011,(5):43-46

数据库系统高可用性是保障图书馆业务系统连续性和可恢复性的基础。本文着重研究Oracle集群和容灾技术构建图书馆高可用系统的解决方案,并详细描述了建设过程中的参数设置和关键点部署等问题。  相似文献   

新一代天气雷达运行能力评估研究   总被引：1，自引：0，他引：1  

裴翀  石城  邵楠  胡学英 《科技通报》2011,27(3):336-341

研究我国新一代天气雷达运行能力的评估方法,建立天气雷达运行能力评估指标体系,合理地选取现有的新一代天气雷达数据资料,定量地评估各型号、分时段的雷达业务可用性、可靠性、可维修性及其变化趋势.编制能反映雷达运行能力的各类评估图表,并以图表的分析为依据,提出今后发展建议.  相似文献   

Conserving indigenous knowledge as the key to the current and future use of traditional vegetables     

T.P. Dweba  M.A. MearnsAuthor vitae 《International Journal of Information Management》2011,31(6):564-571

Indigenous knowledge erodes rapidly. When the loss of this knowledge negatively affects the lives and health of traditionally living rural communities, a drive to conserve indigenous knowledge becomes vital. This article argues that the transfer of indigenous knowledge on traditional vegetables will ensure the availability and utilisation of this important food source for resource-poor rural communities. Data collected on the present use of traditional vegetables at a rural Xhosa village in the Eastern Cape Province of South Africa documented indigenous practices of traditional vegetable use and measured attitudes and perceptions of young women. Findings revealed that although traditional vegetables are readily available, there is a decline in the use of traditional vegetables in this village. Since the loss of associated indigenous knowledge is a reality, and in view of the negative attitude towards traditional vegetables, future use of this valuable food source is threatened. The transfer of the associated indigenous knowledge holds the key to the potential future use of traditional vegetables. Altered perceptions of traditional vegetables are crucial for the conservation of the associated indigenous knowledge. As a result awareness campaigns to promote the use of traditional vegetables, related nutritional education, including proper cooking and preservation techniques are necessary.  相似文献   

从认知的角度探讨高校图书馆数字资源的利用率     

黄坤  赵海鹏  刘月霞  刘志超  王妍 《中华医学图书馆杂志》2011,(5):24-26,31

通过问卷调查的方式对沧州市4所高等院校图书馆数字资源的使用情况进行了统计,分析了高校图书馆数字资源利用率偏低的一些深层次原因,并从认知的角度对提高数字资源利用率提出建议。  相似文献   

中文学术图书的Altmetrics数据生成动机及数据可用性探析——以豆瓣读书平台“短评”为例     

魏佳文  韩毅 《图书情报工作》2021,65(2):98-106

[目的/意义] 探讨用户在“豆瓣读书”发布短评的动机,尝试判断短评作为图书影响力的评估指标是否有效,以期为中文学术图书评价的Altmetrics指标建构提供参考。[方法/过程] 以CBKCI统计报告公布的被引前十的古籍类中文学术图书为样本,采用扎根理论对样本图书在“豆瓣读书”网的1 142条“短评”进行分析,探究短评的产生动机及相应短评数据的可用性。[结果/结论] 用户产生短评的动机包括讨论、分享、消遣娱乐、外界压力、情感宣泄和资料获取6个主范畴。其中,“讨论”动机是最主要的动机,其两个子动机“表达与图书有关的个人经验或想法”和“表达对图书的见解或个人解释”占所有短评数据的四成以上,表明用户不是仅复制图书部分句子或章节,而是试图找到并传播图书最有价值的部分,此类短评数据可用以评价中文学术图书价值;而“分享” “消遣娱乐” “外界压力” “情感宣泄”和“资料获取”等动机相对来说难以较好地反映用户对图书的态度和认知,不宜纳入中文学术图书Altmetrics评价指标中。  相似文献   

我国各地区住房房源差异及其对策研究     

童珊  黄方 《怀化学院学报》2014,(2):50-53

基于第六次人口普查数据,运用因子分析对我国31省市的住房房源状况进行了研究,同时比较了第五、六次普查中我国家庭户住房房源的差异。研究结果表明,依据因子值对各省市住房在相应房源主成分中进行排名,得出我国东部地区住房房源主要以购房、租房房源为主,中西部地区主要以自建房为主,并对相应住房房源所带来的问题提出解决对策;相比第五次人口普查,我国购房房源的家庭户增长最快,其次为租房房源的家庭户增长,自建房房源的家庭户增长较少,并提出租房将是未来我国住房问题解决的重要对策。  相似文献   

图书馆广域网接入高可用架构的技术分析     

郑晓军 《江西图书馆学刊》2014,(2):12-15

在广域网应用已成为图书馆业务工作不可或缺的今天,广域网接入布局高效率、高安全的架构可以避免网络攻击、设备故障等突发事件,确保图书馆业务工作能够持续地进行。  相似文献