论终身教育思想对体育课程改革的影响   总被引：13，自引：0，他引：13  

陈俊钦 《福建体育科技》2003,22(1):39-41

为了适应现代社会的快速发展 ,人类改变了将人生划分为学习和工作两个阶段的观念 ,产生了终身教育的思想。终身教育思想又对教育的组成部分———体育产生影响 ,促使了终身体育思想的产生。终身体育思想对体育课程改革起到十分重要的影响作用 ,主要表现在对体育课程目标、体育教学内容、体育教学模式和体育教学评价等方面改革的影响 ,使改革充分体现了体育课程为终身体育打基础的思想  相似文献   

SciELO对发展中国家开放存取期刊建设的启示   总被引：9，自引：0，他引：9  

刘海霞  胡德华  陶雯  曲艳吉 《图书馆建设》2006,(5):58-59,62

本文对科技在线电子图书馆（SciELO）的开放存取期刊进行了深入、具体的调查与分析，包括对学科分布、影响因子、即时因子和半衰期进行质量评价研究，以对发展中国家开放存取期刊建设有所启示。  相似文献   

网络链接分析研究进展   总被引：8，自引：1，他引：8  

张洋  邱均平  文庭孝 《图书情报知识》2004,(6):3-8

本文对网络链接分析研究的进展情况作了较为全面、详细的介绍，并分析了目前网络链接分析研究中存在的问题。  相似文献   

Impact Factors and the Central Limit Theorem: Why citation averages are scale dependent     

Manolis Antonoyiannakis 《Journal of Informetrics》2018,12(4):1072-1088

Citation averages, and Impact Factors (IFs) in particular, are sensitive to sample size. Here, we apply the Central Limit Theorem to IFs to understand their scale-dependent behavior. For a journal of n randomly selected papers from a population of all papers, we expect from the Theorem that its IF fluctuates around the population average μ, and spans a range of values proportional to $\sigma /\sqrt{n}$, where σ² is the variance of the population's citation distribution. The $1/\sqrt{n}$ dependence has profound implications for IF rankings: The larger a journal, the narrower the range around μ where its IF lies. IF rankings therefore allocate an unfair advantage to smaller journals in the high IF ranks, and to larger journals in the low IF ranks. As a result, we expect a scale-dependent stratification of journals in IF rankings, whereby small journals occupy the top, middle, and bottom ranks; mid-sized journals occupy the middle ranks; and very large journals have IFs that asymptotically approach μ. We obtain qualitative and quantitative confirmation of these predictions by analyzing (i) the complete set of 166,498 IF & journal-size data pairs in the 1997–2016 Journal Citation Reports of Clarivate Analytics, (ii) the top-cited portion of 276,000 physics papers published in 2014–2015, and (iii) the citation distributions of an arbitrarily sampled list of physics journals. We conclude that the Central Limit Theorem is a good predictor of the IF range of actual journals, while sustained deviations from its predictions are a mark of true, non-random, citation impact. IF rankings are thus misleading unless one compares like-sized journals or adjusts for these effects. We propose the Φ index, a rescaled IF that accounts for size effects, and which can be readily generalized to account also for different citation practices across research fields. Our methodology applies to other citation averages that are used to compare research fields, university departments or countries in various types of rankings.  相似文献   

The influence of shoe drop on the kinematics and kinetics of children tennis players     

Alexis Herbaut  Pascale Chavet  Maxime Roux  Nils Guéguen  Christophe Gillet  Franck Barbier 《European Journal of Sport Science》2016,16(8):1121-1129

This study investigated the immediate effects of reducing the shoe drop (i.e. the difference between the heel and the forefoot height) on the kinematics and kinetics of the lower extremities of children tennis players performing a tennis-specific movement. Thirteen children tennis players performed a series of simulated open stance forehands wearing 3 pairs of shoes differing only in the drop: 0 (D0), 6 (D6) and the control condition of 12?mm (D12). Two embedded forceplates and a motion capture system were used to analyse the ground reaction forces and ankle and knee joint angles and moments of the leading lower limb. In D6 compared with D12, the peak impact force was reduced by 24% (p?=?.004) and the ankle was less dorsiflexed at foot strike (p?=?.037). In D0 compared with D12, the peak impact force was reduced by 17% (p?=?.049), the ankle was less dorsiflexed at foot strike (p?=?.045) and the knee was more flexed at foot strike (p?=?.007). In addition, 4 out of 13 participants (31%) presented a forefoot strike pattern for some of the trials in D0. No difference was observed across shoe conditions for the peak knee extensor moment (p?=?.658) or the peak ankle plantarflexor moment (p?=?.071). The results provide preliminary data supporting the hypothesis that for children tennis players, using a 6-mm lower shoe drop might reduce heel impact forces and thus limit potentially impact-related injuries.  相似文献   

上海世博交流影响力的网络模型     

周伟刚  王远平  徐迅  刘超 《襄樊学院学报》2011,32(5):11-14

基于上海世博会对世界人民之间交流的影响力评价问题,建立了以国家和上海世博会为结点的网络模型,定义了世博交流影响力和未与中国建交的国家参展的交流影响力.分析显示:世博交流影响力随各参展国的投入和参展国数目的增加而增大;没有世博结点的网络交流状态越好,上海世博会的影响力越小.最后,通过数值算例验证上述结论.  相似文献   

浅议我国环境影响评价中的公众参与存在的问题及完善办法   总被引：4，自引：0，他引：4  

喻润梅 《北京工业职业技术学院学报》2006,5(2):134-136

阐述了我国环境影响评价中公众参与的发展现状,分析了我国环境影响评价中公众参与存在的问题,并提出了完善公众参与制度的措施.  相似文献   

科技奖励对社会创新的影响机理——基于广东的探索性案例分析     

郑茜 《科技管理研究》2020,40(24):19-25

对科技奖励作用于社会创新的机理加以研究，认为承认是科技奖励的本质特征，科技奖励以“动机+资源+环境”的模式推动社会创新进程和成果转化：通过承认机制激发科研人员的需求；通过激励机制强化科研人员的创新动机；通过导向机制引导优势资源向重点发展技术领域、产业方向聚集；通过竞争机制筛选优秀科研成果和人才，营造良好的社会创新环境。而在这种模式下取得的经济效益又用于加大科技奖励投入，循环往复地推动社会创新不断发展。以广东省科学技术奖为例研究其对社会创新的作用机制，认为其主要通过控制奖励数量、提高奖金额度、调整奖项结构、提升奖励质量等方式发挥科技奖励的承认、激励导向和竞争作用。在此基础上分析广东省科技奖励体系存在的问题，提出发挥民间力量设奖、规范奖后派生待遇、提高个人奖项权重、加大对青年科学家支持力度等对策建议。  相似文献   

基础学科引文峰值区域比较研究   总被引：3，自引：0，他引：3  

党亚茹 《情报科学》2003,21(1):71-74

本文根据1989－1998年SCI收录中国基础学科的科技论文量和引文量，分析了基础学科引用数据的不同峰值变化。  相似文献   

引文国际化对论文被引的影响研究     

龚凯乐  谢娟  成颖  柯青 《图书情报知识》2020,(2):102-112

[目的/意义]在学术交流日趋国际化的背景下,本文拟探索引文国际化与被引量之间的关系,力图回答良好的国际视野是否有助于提升论文的学术影响力这一学界普遍关注的问题。[研究设计/方法]以社会科学为研究对象,选取管理学、图书情报学和新闻传播学的181,406篇CSSCI论文为研究样本,采用相关分析、非参数检验与回归分析的方法研究引用外文期刊论文的数量、学术质量、学科领域、时效性对论文被引量的影响。[结论/发现]在控制了文献类型、期刊声誉等若干可能影响论文被引量的因素后,发现样本论文的引文国际化水平对其被引量具有显著的正向影响。具体而言,引用外文期刊论文的数量越多、平均学术质量越高、学科专属度越高、平均时效性越强的论文具有更高的被引量。[创新/价值]证实了国际视野有助于提升中文社科论文的学术影响力,并提出了有针对性的建议。  相似文献