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   883篇
  免费   14篇
  国内免费   2篇
教育   660篇
科学研究   30篇
各国文化   48篇
体育   62篇
文化理论   2篇
信息传播   97篇
  2023年   5篇
  2022年   5篇
  2021年   6篇
  2020年   16篇
  2019年   24篇
  2018年   34篇
  2017年   39篇
  2016年   34篇
  2015年   25篇
  2014年   24篇
  2013年   198篇
  2012年   20篇
  2011年   13篇
  2010年   19篇
  2009年   34篇
  2008年   16篇
  2007年   26篇
  2006年   21篇
  2005年   30篇
  2004年   27篇
  2003年   20篇
  2002年   13篇
  2001年   11篇
  2000年   21篇
  1999年   16篇
  1998年   7篇
  1997年   5篇
  1996年   12篇
  1995年   10篇
  1993年   10篇
  1992年   4篇
  1991年   8篇
  1990年   5篇
  1989年   11篇
  1988年   7篇
  1987年   9篇
  1986年   5篇
  1985年   8篇
  1983年   6篇
  1981年   5篇
  1980年   5篇
  1979年   4篇
  1978年   7篇
  1977年   4篇
  1975年   6篇
  1973年   4篇
  1943年   4篇
  1933年   3篇
  1929年   3篇
  1928年   3篇
排序方式: 共有899条查询结果,搜索用时 15 毫秒
831.
The Constitution establishes that the apportionment of the U.S. House of Representatives shall be based upon an enumeration of the population. Every 10 years, the Bureau of the Census conducts that enumeration, and using the Method of Equal Proportions designated by the Congress, furnishes to the President the number of Representatives to which each state is entitled. “Rules of residence” have been developed to determine who should be counted and where persons should be counted in the census.Following the 1970 census, because of the Supreme Court's decisions requiring population equality in districts used for electoral purposes, census data became vital to the redistricting processes carried out by the individual states. The Congress enacted Public Law 94–171 which authorized the Bureau of the Census to make special preparations for the provision of redistricting data needed by the 50 states. The 1980 program established by the Census Bureau enabled state redistricting to be accomplished far more smoothly than in the 1970s. The Census Bureau is already working with the states on its 1990 program, an essential element of which is based upon its plan to provide block data for the entire country.  相似文献   
832.
This paper argues that although new problems are encountered as field experience programs grow larger, the basic principles of assuring educational quality remain the same. One large field experience program, the Washington Center for Learning Alternatives, and the method of educational quality control developed by that program are described.  相似文献   
833.
Benchmarking is based on the common sense idea that someone else, either inside or outside of libraries, has found a better way of doing certain things and that your own library's performance can be improved by finding out how others do things and adopting the best practices you find. Benchmarking is one of the tools used for achieving continuous improvement in Total Quality Management (TQM) programs. Although benchmarking can be done on an informal basis, TQM puts considerable emphasis on formal data collection and performance measurement. Used to its full potential, benchmarking can provide a common measuring stick to evaluate process performance. This article introduces the general concept of benchmarking, linking it whenever possible to reference services in health sciences libraries. Data collection instruments that have potential application in benchmarking studies are discussed and the need to develop common measurement tools to facilitate benchmarking is emphasized.  相似文献   
834.
835.
836.
837.
838.
839.
We conducted a three-arm cluster randomized controlled trial (n = 2491) to evaluate a teacher delivered intervention to reduce aggressive and antisocial behavior and increase prosocial behavior in the classroom. A second aim of this trial was to establish whether combining this intervention with an intervention for parents was better than the teacher-only intervention. This evaluation was conducted in a resource-poor setting (Pereira, Colombia). The findings show that both interventions prevented increases in aggressive and antisocial behavior. However, the teacher-only intervention also had a positive impact on increasing prosocial behavior.  相似文献   
840.
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