首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   1592篇
  免费   24篇
  国内免费   16篇
教育   1117篇
科学研究   171篇
各国文化   18篇
体育   193篇
综合类   28篇
文化理论   14篇
信息传播   91篇
  2022年   18篇
  2021年   23篇
  2020年   33篇
  2019年   52篇
  2018年   71篇
  2017年   62篇
  2016年   69篇
  2015年   33篇
  2014年   43篇
  2013年   171篇
  2012年   60篇
  2011年   44篇
  2010年   38篇
  2009年   43篇
  2008年   41篇
  2007年   55篇
  2006年   55篇
  2005年   49篇
  2004年   48篇
  2003年   92篇
  2002年   121篇
  2001年   115篇
  2000年   67篇
  1999年   24篇
  1998年   14篇
  1997年   17篇
  1996年   11篇
  1995年   14篇
  1994年   10篇
  1993年   13篇
  1992年   7篇
  1991年   9篇
  1990年   10篇
  1989年   4篇
  1988年   4篇
  1987年   8篇
  1986年   4篇
  1985年   9篇
  1984年   7篇
  1983年   4篇
  1982年   6篇
  1981年   3篇
  1980年   4篇
  1978年   7篇
  1974年   3篇
  1973年   4篇
  1887年   3篇
  1866年   2篇
  1865年   4篇
  1838年   2篇
排序方式: 共有1632条查询结果,搜索用时 328 毫秒
91.
92.
93.
教育是立国之本,强国之路,面对当代科技革命的挑战,党和国家了适时的回应,和出全面推进素质教育的决定。在如何实施素质教育工作中,毛泽东同志关于“教学民主”、“知行统一”、“少而精”、“启发式”等一系列教学思想给我们提供了一定的思路和启迪。  相似文献   
94.
95.
运用问卷调查法、文献资料法对参加中国足协组织的青少年足球冬训营球员的地域流动性进行了调研。结果表明:现阶段球队招募球员受地理因素的限制越来越小;辽宁省的球员向外流动较多;不同的球员交流目的对本土球员培养的影响作用是不同的;大多数球队都很重视外籍球员在球队中的比例,过低或者过高的比例都不利于球队的发展。旨在为青少年足球人才交流的合理进行、青少年足球运动的可持续发展提供参考。  相似文献   
96.
97.
98.
Dickinson (2009) agrees with two of the core claims that were made in my target article (De Houwer, 2009): Associative learning effects (often) depend on (1) the formation of propositions and (2) the operation of nonautomatic processes. Whereas I derived these claims from propositional models of learning, Dickinson (2009) argues that they are also compatible with association formation models (AFMs). He also defends the position that only AFMs can explain “nonrational responses to associative experiences.” In this comment, I question whether there is much value in continuing to cling to AFMs.  相似文献   
99.
Abstract

This study aimed to determine indicators of sailing performance in 2 (age) groups of youth sailors by investigating the anthropometric, physical and motor coordination differences and factors discriminating between elite and non-elite male optimist sailors and young dynamic hikers. Anthropometric measurements from 23 optimist sailors (mean ± SD age = 12.3 ± 1.4 years) and 24 dynamic youth hikers (i.e. Laser 4.7, Laser radial and Europe sailors <18 years who have to sail the boat in a very dynamic manner, due to a high sailor to yacht weight ratio) (mean ± SD age = 16.5 ± 1.6 years) were conducted. They performed a physical fitness test battery (EUROFIT), motor coordination test battery (Körperkoordinationstest für Kinder) and the Bucket test. Both groups of sailors were divided into two subgroups (i.e. elites and non-elites) based on sailing expertise. The significant differences, taking biological maturation into account and factors discriminating between elite and non-elite optimist sailors and dynamic hikers were explored by means of multivariate analysis of covariance and discriminant analysis, respectively. The main results indicated that 100.0% of elite optimist sailors and 88.9% of elite dynamic hikers could be correctly classified by means of two motor coordination tests (i.e. side step and side jump) and Bucket test, respectively. As such, strength- and speed-oriented motor coordination and isometric knee-extension strength endurance can be identified as indicators of sailing performance in young optimist and dynamic youth sailors, respectively. Therefore, we emphasise the importance of motor coordination skill training in optimist sailors (<15 years) and maximum strength training later on (>15 years) in order to increase their isometric knee-extension strength endurance.  相似文献   
100.
Information on the amount of exercise practised by nursing home (NH) residents is scarce. This study aimed at describing NH residents’ participation in exercise classes, as well as to examine whether the presence of a professional exercise instructor in the facilities is associated with residents’ exercise habits. The cross-sectional data of 5402 residents (median age = 88 years; mostly women (75.2%)) from 163 NHs in France were analysed. Adjusted logistic and linear regressions were performed to examine whether the presence of a professional exercise instructor in the NH was associated with exercise habits: exercise participation, frequency, duration, and levels. From the 5402 participants, 1914 were participating in exercise classes provided in the NH. Most of them had an exercise frequency of 1x/week or less. Median duration of exercise sessions was 45 min. Exercise levels were rated as: highly active (n = 487), intermediately active (n = 1096), and poorly active (n = 331). The presence of a professional exercise instructor working in the facility was significantly associated with exercise participation and with higher exercise frequencies and levels, and session duration. In conclusion, the presence of professional exercise instructors is associated with better exercise habits in NH residents. Improved exercise habits may potentially be translated into better health in this population.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号