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   119646篇
  免费   1844篇
  国内免费   234篇
教育   82765篇
科学研究   13410篇
各国文化   1976篇
体育   9430篇
综合类   171篇
文化理论   1055篇
信息传播   12917篇
  2021年   930篇
  2020年   1640篇
  2019年   2550篇
  2018年   3053篇
  2017年   3299篇
  2016年   3360篇
  2015年   2292篇
  2014年   3166篇
  2013年   27196篇
  2012年   2347篇
  2011年   2694篇
  2010年   2307篇
  2009年   2598篇
  2008年   2349篇
  2007年   2092篇
  2006年   2341篇
  2005年   2334篇
  2004年   3014篇
  2003年   2332篇
  2002年   2148篇
  2001年   2010篇
  2000年   1692篇
  1999年   1569篇
  1998年   1450篇
  1997年   1519篇
  1996年   1699篇
  1995年   1459篇
  1994年   1469篇
  1993年   1468篇
  1992年   1501篇
  1991年   1420篇
  1990年   1413篇
  1989年   1347篇
  1988年   1190篇
  1987年   1138篇
  1986年   1093篇
  1985年   1256篇
  1984年   1150篇
  1983年   1096篇
  1982年   1089篇
  1981年   1011篇
  1980年   965篇
  1979年   1108篇
  1978年   1049篇
  1977年   956篇
  1976年   866篇
  1975年   715篇
  1974年   709篇
  1973年   679篇
  1972年   523篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
992.
993.
994.
Counselors (N = 911) reported the research skills needed for practice and subsequent research training needs. Findings indicate that counselors have a high need for research skills at work, but training needs differ significantly by counselor type. Recommendations include increasing emphasis on single‐case design, survey design, and widely available data analysis tools.  相似文献   
995.
996.
Objective: To analyze the possible dose-response association between components of sports participation (intensity, volume and previous engagement) and 4-year mortality rates among Brazilian adults.

Methods: 679 males and females (mean age among men = 66.7 ± 9.3 years old and mean age among women = 64.8 ± 8.9 years old) composed the study sample. Sports participation was assessed using Baecke’s questionnaire, which considers intensity, duration and previous engagement. Medical records were used to identify the cause of the death. Cox regression analysis was performed to determine the independent associations of exercise components and mortality.

Results: Participants that reported exercising at moderate-vigorous intensity (Moderate/vigorous: 4.1% versus None/light: 10.3% [p-value = 0.012]; HR = 0.42 [0.1 to 0.94)] and for more than four months (≥4 months: 5.3% versus <4 months: 10.2% [p-value = 0.038]; HR = 0.47 [0.24 to 0.94]) had lower mortality risk. The percentage of survival according to all-cause mortality was significantly higher for participants engaged in sports at moderate-vigorous intensity (p-value = 0.014), as well as for those engaged in sports for periods superior than four months (p-value = 0.036).

Conclusion: We found higher percentage of survival among adults engaged in sports at moderate-vigorous intensity and with at least four months of previous engagement.  相似文献   

997.
998.
In this essay, Jennifer Morton discusses educators as central examples of agents who engage in ideal and nonideal ways of thinking. The educator, as a representative of the political community, is tasked with two aims. The first is nurturing students with the skills and knowledge they need for the world as they will find it. In pursuing this goal, the educator is assuming certain social facts, some of them unjust, that constitute the present nonideal world. The second aim is civic — educating future citizens. Insofar as the educator is involved in pursuing this goal, his or her role is to work at making certain future social facts true, in the hope of making the future slightly more ideal. Morton argues that if we think of these two aims instrumentally, they can come into conflict. She does not suggest a resolution to this conflict, but rather develops an alternative expressive account of the civic role of the educator. Ideal thinking by educators, Morton maintains, should be thought of as constituting an expression of respect toward their fellow citizens here and now. Ultimately, she argues that this expressive component of the educator's job is crucial to the educator's role in the political community.  相似文献   
999.
N. Mukunda 《Resonance》2011,16(9):796-797
  相似文献   
1000.
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