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   1437篇
  免费   38篇
教育   1220篇
科学研究   34篇
各国文化   41篇
体育   50篇
综合类   3篇
文化理论   6篇
信息传播   121篇
  2023年   9篇
  2022年   10篇
  2021年   20篇
  2020年   28篇
  2019年   40篇
  2018年   78篇
  2017年   82篇
  2016年   74篇
  2015年   31篇
  2014年   51篇
  2013年   364篇
  2012年   45篇
  2011年   41篇
  2010年   38篇
  2009年   33篇
  2008年   46篇
  2007年   36篇
  2006年   33篇
  2005年   41篇
  2004年   41篇
  2003年   20篇
  2002年   19篇
  2001年   21篇
  2000年   22篇
  1999年   18篇
  1998年   17篇
  1997年   10篇
  1996年   19篇
  1995年   15篇
  1994年   8篇
  1993年   10篇
  1992年   8篇
  1991年   16篇
  1990年   9篇
  1989年   7篇
  1988年   11篇
  1987年   8篇
  1986年   10篇
  1985年   5篇
  1984年   6篇
  1983年   7篇
  1982年   7篇
  1979年   8篇
  1978年   7篇
  1977年   4篇
  1975年   5篇
  1974年   4篇
  1973年   4篇
  1972年   4篇
  1971年   6篇
排序方式: 共有1475条查询结果,搜索用时 15 毫秒
111.
112.
113.
114.
115.
116.
This paper identifies two conceptions of security in contemporary concerns over the vulnerability of computers and networks to hostile attack. One is derived from individual-focused conceptions of computer security developed in computer science and engineering. The other is informed by the concerns of national security agencies of government as well as those of corporate intellectual property owners. A comparative evaluation of these two conceptions utilizes the theoretical construct of “securitization,”developed by the Copenhagen School of International Relations. This article has been on the drawing boards for longer than I dare to admit. Along the way, many have helped its development by generously sharing their wisdom: James Der Derian, Niva Elkin-Koren, Ed Felten, Batya Friedman, Lene Hansen, audiences at CEPE, TPRC, the Yale Cybercrime and Digital Law Enforcement Conference, and Watson Institute’s Symposium in Dis/Simulations of War and Peace,” and University of Newcastle, Computer Science Department. Thanks, also, to Sam Howard-Spink for excellent editorial assistance.  相似文献   
117.
118.
Seventy-six librarians participated in a series of focus groups in support of research exploring the skills, knowledge and attributes required by the contemporary library and information professional in a world of ever changing technology. The project was funded by the Australian Learning and Teaching Council. Text mining data analysis revealed three main thematic clusters (libraries, people, jobs) and one minor thematic cluster (community). Library 2.0 was broadly viewed by participants as being about change whilst librarian 2.0 was perceived by participants as not a new creation but just about good librarian practices. Participants expressed the general belief that personality traits, not just qualifications, were critical to be a successful librarian or information worker in the future.  相似文献   
119.
120.
There are unresolved tensions between achieving inclusivity and maintaining diversity in early childhood services in South Africa. While there have been substantial and impressive attempts to develop a comprehensive early childhood development policy as part of the new education planning in South Africa, there is a concern that indigenous traditions may be overlooked or lost in the process. Early childhood services, both governmental and those supported by non‐governmental organizations, have relied heavily,’ if not exclusively, on concepts and curricula drawn from Anglo‐American traditions. In order to illustrate these points this paper draws on material collected as part of a recent review of early childhood services in South Africa carried out for the Save the Children Fund.  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