辽宁奥运金牌优势项目比较研究   总被引：1，自引：0，他引：1  

赵忠伟  王大超  王岸新 《沈阳体育学院学报》2006,25(1):73-75

采用数理统计和比较分析等研究方法,根据近几届奥运会辽宁健儿所取得的奖牌情况,对辽宁省奥运金牌优势项目和绝对优势项目的构成、成绩稳定性和可持续发展空间等指标进行比较分析,结果表明:辽宁省奥运优势项目的构成相对单一,成绩大体上呈上升趋势,优势程度也较大,但可继续发展的空间较小。  相似文献   

面向重大突发事件的智库应急情报保障研究     

黄晓斌  张明鑫 《情报学报》2022,41(1):18-28

了解突发事件中我国智库应急情报保障体系的组成要素、相互联系以及存在的问题,为更好地发挥我国智库在突发事件中的应急情报保障作用和提升应急情报保障的质量水平提供依据。采用自下而上的经验性研究设计思路,以Q事件背景下的33个智库为案例,爬取33个智库在Q事件期间发布的各类型资料,采用扎根理论三级编码思路构建理论体系。应急参与主体、应急保障对象、应急情报需求、应急保障内容和应急保障流程是智库应急情报保障体系的构成要素。其中,应急情报需求是驱动力,应急参与主体是推力,应急保障对象是拉力,而应急保障流程和应急保障内容彼此紧密联系,是智库发挥应急情报保障作用机制的核心部分。根据研究结果,提出融合众包模式、鼓励公众参与、引入新兴信息技术、提高应急情报需求感知效率以及提升应急参与主体协同联动水平等建议。  相似文献   

基于匹配点逐层过滤的岩体点云配准方法     

张韬  肖俊  王颖 《中国科学院大学学报》2022,39(3):352-359

岩体点云配准是岩体三维重建与分析的基础。经典的点云配准方法虽然能够很好地适用于普通点云,但对于岩体点云并不能获得足够的精度。由于岩体点云表面结构复杂,且大部分区域为平面,基于岩体点云的这些特点,提出通过几何特征逐层过滤匹配点的岩体点云配准算法,引入匹配点对的协方差矩阵的特征值和特征向量矩阵,以及曲率、主方向等几何特征逐层过滤匹配点对,精确地找到匹配点对。在不同岩体点云上的实验测试与分析结果表明,该算法在准确度上有明显优势。  相似文献   

Using special events to motivate visitors to attend art galleries     

Megan Axelsen ^{Author Vitae} 《Museum Management and Curatorship》2006,21(3):205-221

The contemporary directions of art galleries worldwide are changing as social patterns and demands, as well as visitor expectations of their experiences at art galleries, change. New programs and strategies are being developed in galleries to make these institutions more appealing to people who would not normally visit them, and one such strategy is the staging of special events. However, because galleries are staging an increasing number of special events, the factors motivating visitors to attend these institutions are changing. Visitors hope to have different experiences and encounters in the gallery during special events. This paper presents the findings from a study in Australia about visitors’ motivations to attend special events in galleries. It highlights the different factors that motivate visitors to attend the gallery specifically for a special event in comparison to visiting the gallery's permanent collections.  相似文献   

Can a non-Muslim Mass Shooter be a “Terrorist”?: A Comparative Content Analysis of the Las Vegas and Orlando Shootings     

Mohamad Hamas Elmasry  Mohammed el-Nawawy 《Journalism Practice》2020,14(7):863-879

ABSTRACT

This study used the 2017 Las Vegas and 2016 Orlando mass shootings as case studies to explore alleged double standards in reporting of events featuring Muslim and non-Muslim mass perpetrators of violence. The study used framing theory and content analysis to examine Los Angeles Times and New York Times coverage of the shootings during the one week immediately following each event. Findings are consistent with previous literature and the researchers’ expectations. The Orlando shooting, carried out by a Muslim, was allotted more coverage despite the fact that it produced nine fewer fatalities than the Las Vegas shooting, perpetrated by a white non-Muslim. The analysis also showed that the examined newspapers were more likely to employ a “terrorism” frame in their coverage of the Orlando shooting than in their coverage of the Las Vegas shooting; link the Orlando mass shooting with the global war on terrorism; and to humanize Stephen Paddock, the white perpetrator of the Las Vegas shooting. Framing differences found in this study may contribute to downplaying the threat of white male gun violence, and to reinforcing fears of Islam and Muslims.  相似文献   

Body composition differences by age and playing standard in male rugby union and rugby league: A systematic review and meta-analysis     

Tom Geeson-Brown  Ben Jones  Kevin Till  Sarah Chantler  Kevin Deighton 《Journal of sports sciences》2020,38(19):2161-2176

ABSTRACT

This systematic review and meta-analysis aimed to determine differences in body compositionn between playing standard and age in male rugby union and rugby league athletes. The MOOSE (Meta-analysis of Observational Studies in Epidemiology) guidelines for design, implementation, and reporting were followed. Studies were required to be in male rugby union or league and have body composition as the primary or secondary outcome. Data was required to be presented separately for positional groups and body composition presented as whole-body. A systematic search was performed in PubMed, Cochrane Library, MEDLINE, SPORTDiscus, and CINHAHL via EBSCOhost. 57 studies were included for meta-analysis. Results highlighted significantly higher fat-free mass in senior elite than senior sub-elite or junior elite athletes for all RU and RL forwards. Small and non-significant differences were found in fat mass between rugby union playing standards and age categories. Rugby league senior elite forwards had less fat mass than junior elite forwards. Practitioners should prioritise training and nutritional strategies that maximise fat-free mass development, especially in junior elite cohorts.  相似文献   

大众文化的审美特征     

周志强 《滨州学院学报》2003,19(3):46-50

中国大众文化的审美特征立足于我们自身日常生活的审美实践,在文化生产工业化、市场化的过程中,呈现出感性愉悦性文化的倾向。它不以提供对世界的理性反思为目的,而主要倾向于创造娱乐大众的文化形式,达到“捕获”大量受众、获取商业利润的目的,因此,感性层面上的快乐成为大众文化的运作核心。  相似文献   

大众文化背景下高校思想政治教育的重构与整合     

刘爱琳  王寅 《商丘职业技术学院学报》2007,6(3):17-19

在社会转型过程中，大众文化以其娱乐性、流行性和大众参与性的特征，迅速占领着高校校园的文化市场，对高校思想政治教育产生了强烈的冲击与挑战。本文拟在剖析大众文化对高校思想政治教育影响的基础上，进一步探讨大众文化背景下如何实现高校思想政治教育的重构与整合。  相似文献   

全民健身运动视角下的黑龙江省大众滑雪运动发展     

杜凤魁  孙红  黄海  张薇 《冰雪运动》2016,(1):64-69

为了从全民健身运动视角考察黑龙江省大众滑雪运动开展情况,自编《黑龙江省大众滑雪运动调查问卷》,对黑龙江省大众滑雪开展情况进行问卷调查,同时结合访谈法和文献研究法进行研究,结果显示黑龙江省大众滑雪的总体水平较低,各维度中滑雪认知水平高于其他维度;年龄越大滑雪运动水平越高,已婚人士的大众滑雪水平高于其他婚姻类型者的滑雪水平;年龄越小,大众滑雪的认知水平越高,金钱投入越多;年龄越大投入大众滑雪的时间越多;已婚人士有更强的滑雪动机、投入更多的滑雪时间;学历水平越高大众滑雪认知水平就越高;女性在大众滑雪中有更高的消费水平,男性滑雪时间多于女性,而且技术水平明显高于女性。  相似文献   

高温高湿环境中运动前补液方法及效果研究     

黄兴  吴昊  姚婉婉 《湖北体育科技》2016,(1):26-28

目的:在高温高湿环境中,脱水现象构成了对大众健身人群健康和运动能力的极大挑战,本研究旨在通过对25名自行车爱好者进行运动前补充含一定量甘油的运动饮料的方法,探究运动前补充甘油饮料对人体保水能力和运动能力的影响,为大众健身人群更好地使用甘油超水合补水法提供理论和实践依据。方法:本实验中的25名北京地区的自行车爱好者平均年龄为27.4±5.58岁,形成自身对照。运动员补充饮料后在模拟高温高湿环境训练房进行递增负荷的功率自行车运动(温度控制在35±2℃,湿度控制在60±5%),并监测其尿量、体重下降值、血乳酸、运动持续时间等指标。采用SPSS17.0统计软件包分析数据。结果:1)甘油补充对体重的影响:两组运动前后体重变化值有非常显著性差异(P<0.01);2)甘油补充对排尿量的影响:甘油实验组的运动后尿量和总尿量均明显著低于安慰对照组(P<0.05);3)甘油补充对运动持续时间的影响:甘油实验组的运动持续时间显著长于安慰对照组(P<0.01);4)甘油补充对血乳酸的影响:甘油实验组运动后即刻的血乳酸浓度明显低于安慰对照组(P<0.05)。结论:1)通过运动前后体重变化和排尿量的变化对比,表明运动前甘油补充可显著增加机体的储水能力;2)通过对安慰对照组和甘油实验组运动持续时间的对比研究表明,甘油补充组运动持续时间显著长于安慰对照组,进一步表明运动前补充甘油饮料有助于延缓运动疲劳的产生,延长运动时间;3)通过对安慰对照组和甘油实验组血乳酸的监测结果表明,甘油饮料的保水效果可显著降低机体因运动产生的代谢酸性物质,从而延缓运动疲劳。  相似文献