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   13629篇
  免费   208篇
  国内免费   21篇
教育   9534篇
科学研究   1535篇
各国文化   129篇
体育   1153篇
综合类   6篇
文化理论   101篇
信息传播   1400篇
  2021年   144篇
  2020年   201篇
  2019年   286篇
  2018年   393篇
  2017年   364篇
  2016年   368篇
  2015年   246篇
  2014年   323篇
  2013年   2345篇
  2012年   302篇
  2011年   323篇
  2010年   281篇
  2009年   224篇
  2008年   272篇
  2007年   243篇
  2006年   243篇
  2005年   211篇
  2004年   232篇
  2003年   206篇
  2002年   178篇
  2001年   446篇
  2000年   293篇
  1999年   254篇
  1998年   118篇
  1997年   155篇
  1996年   135篇
  1995年   124篇
  1994年   146篇
  1993年   111篇
  1992年   182篇
  1991年   196篇
  1990年   192篇
  1989年   199篇
  1988年   167篇
  1987年   160篇
  1986年   169篇
  1985年   206篇
  1984年   161篇
  1983年   149篇
  1982年   129篇
  1981年   121篇
  1980年   115篇
  1979年   165篇
  1978年   132篇
  1977年   117篇
  1976年   93篇
  1975年   112篇
  1974年   100篇
  1973年   107篇
  1971年   98篇
排序方式: 共有10000条查询结果,搜索用时 956 毫秒
101.
As counselor preparation programs are compelled to demonstrate student social and cultural competence, valid inventories are needed to measure development consistent with contemporary standards. The Intersectional Privilege Screening Inventory was created for this purpose, was assessed using 4 types of validity evidence, and has results supporting its use in student development.  相似文献   
102.
103.
104.
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   

105.
106.
107.
108.
109.
Abstract

An empirical examination of accredited American higher education institutions was conducted to obtain baseline data regarding distance education copyright, intellectual property, and antitrust concerns. Additionally, a multiple‐case study involving ten of the top thirty accredited distance education institutions in America was conducted. Policy approaches were examined for all institutions, and differences were discussed between public and private institutions as well as between the following Carnegie Classification institutions: Research I and II, Doctorate I and II, and Master's I and II. Data indicated that, out of the schools surveyed, 22% of the institutions in these Carnegie Classification categories published copyright and intellectual property policies on their institution's Web site. In the case study, it was found that 90% of the institutions centrally controlled their distance education program administration as well as the copyright and intellectual property policies related to it.  相似文献   
110.
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