我国优秀女子双打比赛前三拍技术特征分析——以2021年十四运会女双决赛为例     

姚宏双  王兴怀  杜鑫 《体育科技文献通报》2022,(2)

羽毛球前三拍技术决定着双打比赛的走向,影响运动员在比赛伊始的主被动关系,本研究对我国优秀羽毛球女子双打运动员在中华人民共和国第十四届运动会(以下简称十四运会)女双决赛中前三拍技术应用进行分析。对陈清晨、贾一凡(以下简称凡晨组合)、杜玥、李茵晖(以下简称李杜组合)在十四运会女双决赛中的比赛录像进行观察统计,以比赛中发球的落点、得失分;接发球的落点、技术应用次数以及得失分;第三拍回球落点、技术运用及得失分情况进行统计分析,以期为基层梯队中女子双打、男子双打乃至混合双打的训练提供参考依据。结果发现:我国优秀女双运动员发球落点集中在1区和5区,发球技术较稳定;接发球运用最多的技术为推球和扑球;第三拍技术在两对运动员之间存在差异,且均有失分情况出现。  相似文献   

直辖市“双一流”高校专利合作与知识流动研究     

王丽婷  匡登辉 《中国发明与专利》2022,(2)

考察我国直辖市"双一流"高校的专利合作网络演化,为提升直辖市的科技创新合作效率,提升科技创新能力和城市创新综合竞争力,为技术创新主体选择技术合作伙伴、探究地区间、高校间知识流动提供经验、启示。本文运用合作强度Salton指数、专利引用、绝对合作频次等,以Patentics和国家知识产权局专利数据库为工具,获取直辖市"双一流"高校合作专利数据,构建高校间的专利合作矩阵,采用合作网络可视化分析,梳理直辖市"双一流"高校专利合作网络,揭示网络环境下高校科技创新和知识流动的特征及趋势,给出提升高校专利合作的建议。结果表明:直辖市"双一流"高校校际专利合作的强同城倾向,清华大学、北京大学、复旦大学是京沪两地的专利合作核心高校。清华大学、上海交通大学、天津大学专利申请量居前三,清华大学、上海交通大学的专利被引量居前,清华大学、上海交通大学、天津大学为专利合作的核心高校,对知识流动影响深刻。不足之处在于专利只能部分反映高校间的技术创新合作,合作申请只是技术合作的一部分,还包括科技论文合作和成果转化。  相似文献   

Politics,Pauperism and Power in Late Nineteenth Century Ireland. By Virginia Crossman.     

《Cultural and Social History》2013,10(2):251-253

ABSTRACT

Food and military identity were inextricably linked in the British Army: rations were a thrice daily indicator of the men's separation from their civilian selves. The soldiers were what they ate, but they were also where and how they ate; the grubby rapacity of the barrack dining hall, the absence of civilizing cutlery and the unfamiliar food delineated their new role as clearly as any uniform. Institutional feeding facilitated the erasure of self, an unhelpful attribute in the military world. Men's accounts indicate the conflict between their appetites and what they all too often regarded as oppression in a dietary form.  相似文献   

On Media Concentration and the Diversity Question     

Robert B. Horwitz 《The Information Society》2005,21(3):181-204

Corporate mergers and the consolidation of ownership in the American communications arena have long been sources of concern. U.S. regulatory and antitrust policy traditionally attempted to secure a “diversity of voices” structurally, largely through rules regarding ownership. Although the meaning of diversity was always problematic and undertheorized, the Federal Communications Commission long set ceilings on the numbers of broadcast outlets any single person or corporation could own and enacted cross-ownership rules such as a prohibition against a corporation owning a newspaper and broadcast outlets in the same market. These rules, and the FCC's authority to make them, were upheld, occasionally even compelled, by the federal appellate courts. In the last 20 years, however, legal trends, in conjunction with political developments, have undermined the diversity rationales behind ownership rules and associated structural regulations of mass media. Paradoxically, even as media corporations are becoming larger and presumably more powerful, ownership regulations are being rescinded or struck down. This article explains this history. It concludes with a suggestion that the First Amendment metaphor of a marketplace of ideas is misplaced, and of how our thinking about media ownership and diversity might be better served by the metaphor of a mixed media system.  相似文献   

Transition to formal schooling: Do transition practices matter for academic performance?     

Annarilla Ahtola  Gintautas SilinskasPirjo-Liisa Poikonen  Marita KontoniemiPekka Niemi  Jari-Erik Nurmi 《Early childhood research quarterly》2011,26(3):295

This study examined whether the transition practices implemented in preschool-elementary school pairs contribute to children's academic development during the first year of elementary school. Participants were 398 children who moved from 36 preschools to 22 elementary schools in two Finnish towns. Children were tested in respect to their reading, writing, and math skills in the preschool spring and in the grade 1 spring. The most common practices reported by preschool teachers were discussions about the school entrants and familiarizing preschool children with the school environment and the new teacher. Multilevel latent growth modeling showed that the more the preschool teachers and elementary-school teachers implemented various supportive activities during the preschool year, the faster the children's skills developed from preschool to grade 1 spring. Co-operation over curricula and passing on written information about children between the preschool and the elementary school were the best predictors of the children's skills, although they were the least commonly used practices. The need to restructure the transition to elementary school and the use of multiprofessional resources are discussed.  相似文献   

试论爱伦·坡小说的几个特点及其成因     

任亚杰 《毕节学院学报》2011,29(10):114-119

19世纪美国著名小说家爱伦.坡的小说,偏爱冷色调,常以恐怖、变态心理为主要内容,对人物的双重性格的刻画细致入微,善于用作品的幻想表现他本人的清醒与睿智,强调文章应产生的效果,并且善于用第一人称来宣泄自身情感。这一系列特点的形成,与爱伦.坡本人的身世成长经历及其爱好密不可分。  相似文献   

爱思唯尔——MD consult临床医学的综合图书馆     

张帆  张燕萍 《晋图学刊》2011,(2):89-90

随着网络的普及与信息技术的发展,利用互联网获取信息已成为人们重要的信息渠道。外文医学期刊是医学工作者的重要信息源,目前电子版及网络版期刊发展迅速,一些网络期刊建立了自己的网站;大型出版商、信息服务机构、数据库生产商等组织了一定数量的电子期刊集中上网,形成了有自己特点的数据库或综合电子图书馆,本文系统介绍MD—consult数据库所包含的十大项目,以其内容丰富、数据权威、快捷方便的检索功能和实用性等特点,为临床专家、医师、药剂师、护士、医学图书馆及其医学院校的学生和病患等人员提供全方位的信息服务。  相似文献   

从十万卷楼抄本《章学诚全集·士习》看《文史通义·感遇》的文本写定     

李成晴 《图书馆杂志》2021,(2):123-128

嘉业堂刻《章氏遗书》本《文史通义》标注有目无文的《士习》一篇,其实并未逸失。《士习》篇最早由周作人从十万卷楼抄本《实斋全集》中发现,并刊布在《国立华北编译馆馆刊》1943年第2卷第5期的开卷第一篇。由于时值日本侵华,且《馆刊》流通不广,这一发现并未引起学界的注意。十万卷楼抄本《实斋全集》今藏国家图书馆,经查阅,《士习》篇确实保存在第5册之中。《士习》并非如周作人跋语所说是《文史通义》内篇《知难》的初稿,而是《感遇》篇的初稿。通过《感遇》与《士习》16则歧异文句的文本比勘,可微观考察章学诚对著述删润写定的不同形式,并进而体察章氏学术思想与行止心境的变迁。  相似文献   

Female Struggle in Patriarchal Society-Comparative Interpretation of Gimmal and Crumbs of Agalloch Eaglewood-the First Incense Burner     

李姝颖 《海外英语》2014,(3):172-173

Zhang Ailin created so many various kinds of female charaters in her novels;females who own distinct characters and identities just have similar fates and struggles.This paper tries to probe into the similar fates and struggles of two heroines with different identities in the same social background by analysing the novel Gimmal and Crumbs of Agalloch Eaglewood-the First Incense Burner from perspective of feminism.  相似文献   

甲午战争前日本强军过程述论     

陈巍 《大连大学学报》2014,(4):30-35

明治初期,日本的军队还十分弱小。但日本为了建立自己在东亚的霸权,并跻身于列强,很快就出现了对外扩张的趋势。在此过程中,在琉球、台湾和朝鲜等问题上,与东亚传统大国——中国不断发生摩擦。最终,以1882年朝鲜"壬午兵变"为转折点,日本走上了对清备战的道路。此后的10余年间,日本的强军过程以海军扩张为重心,而陆军也向当时的强国德国学习。最终在1890年前,日军实现了由对内守备型向对外进攻型的转变。  相似文献