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   2191篇
  免费   38篇
  国内免费   2篇
教育   1732篇
科学研究   76篇
各国文化   25篇
体育   102篇
综合类   1篇
文化理论   13篇
信息传播   282篇
  2023年   14篇
  2022年   18篇
  2021年   24篇
  2020年   46篇
  2019年   86篇
  2018年   92篇
  2017年   93篇
  2016年   95篇
  2015年   49篇
  2014年   92篇
  2013年   512篇
  2012年   61篇
  2011年   70篇
  2010年   52篇
  2009年   53篇
  2008年   92篇
  2007年   60篇
  2006年   62篇
  2005年   52篇
  2004年   48篇
  2003年   56篇
  2002年   29篇
  2001年   30篇
  2000年   30篇
  1999年   28篇
  1998年   26篇
  1997年   25篇
  1996年   32篇
  1995年   23篇
  1994年   29篇
  1993年   18篇
  1992年   22篇
  1991年   13篇
  1990年   17篇
  1989年   20篇
  1988年   15篇
  1987年   8篇
  1986年   8篇
  1985年   12篇
  1984年   10篇
  1982年   8篇
  1981年   7篇
  1980年   8篇
  1979年   8篇
  1978年   7篇
  1977年   7篇
  1975年   7篇
  1974年   7篇
  1973年   6篇
  1968年   6篇
排序方式: 共有2231条查询结果,搜索用时 0 毫秒
81.
Data were collected on rate per minute of administering token reinforcement for one male and six female teachers enrolled in a behavior modification course. Data were obtained from record cards maintained by pupils for tokens received during an observer-present condition and for an observer-absent condition. Comparison of reinforcement rates for observer-present vs. absent indicated significantly higher rates of token delivery (p <.025) in the observer-present condition. The observer effect has important implications for those programs in which assessment procedures introduce an observer into the classroom to collect data on changes in teacher behavior.  相似文献   
82.
83.
The purpose of this study was to explore the intermedia influence of the Internet on traditional news media. Accordingly, this study examined the influence of Internet bulletin boards on newspaper coverage of the 2000 general election in South Korea at both first and second levels of agenda-setting through content analyses of major newspapers and the Internet bulletin boards during the campaign. Results of cross-lagged correlation analyses showed that newspapers influenced Internet bulletin boards at the first level of agenda-setting. Additionally, at the second level of agenda-setting, the influence of Internet bulletin boards on newspapers was found. Although reciprocity appeared in a few time spans, the results imply that the Internet funnels and leads public opinion as well as affecting the coverage of other media.  相似文献   
84.
During the past several years the Online Computer Library Center (OCLC) noted increasing concern from the library community regarding the future of cataloging. In response to this concern and to the rapidly changing metadata environment, OCLC is taking steps to further a paradigm shift toward early acquisition of metadata in WorldCat directly from the entities responsible for content purchased by libraries—chiefly the publisher supply chain. This shift in thinking requires the acknowledgement that metadata is dynamic and will change over time and relies upon the automated capture of metadata early in the publishing cycle as well as automated processes to help make the early metadata “good enough.”  相似文献   
85.
86.
While scholars have increasingly engaged with the (micro)political and emotional experiences of coaches in professional and semi-professional football, little attention has been given to grass-roots coaches’ understandings of these issues. The aim of this paper is to outline one possible research agenda that could contribute to the development of a rich and increasingly nuanced understanding of the everyday realities of being a grass-roots football coach. In particular, we consider (volunteer) coaches’ participation in grass-roots football to be an inherently relational endeavour. Following the presentation of a creative fiction that is based upon our shared experiences of being grass-roots football coaches, we then illustrate how relational thinking might be productively applied to exploring the social, (micro)political and emotional features of grass-roots football coaching.  相似文献   
87.
88.
89.
90.
This study replicates and extends Yates and Chapman's [(2007), Behavioral & Social Sciences Librarian, 26(1), 39–51] study of references from Communication Monographs, Communication Research, and Journal of Communication for the years 2010 and 2015 to draw further conclusions on the use of monographs in journal literature in the field of communication. Results show that the use of monographs in these journals has been outpaced by references to journal articles by a ratio of 5 to 1. The references were further analyzed by date and publisher. The authors then selected a random sample of the monographs cited in the journals to explore the availability of these monographs in electronic format and found that many are available as ebooks, particularly the more recent titles. The authors also examined the references from a collection of scholarly books in communication from 2005, 2010, and 2015 and found that the use of monographs may be declining slightly. The most notable trend in these references was the increase in the number of references to items in other formats such as film, television, comic books, and websites. The authors conclude that the monographs crisis is indeed affecting citation patterns in the field of communication.  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