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   826篇
  免费   11篇
教育   698篇
科学研究   18篇
各国文化   10篇
体育   34篇
综合类   1篇
文化理论   2篇
信息传播   74篇
  2023年   5篇
  2022年   7篇
  2021年   9篇
  2020年   10篇
  2019年   28篇
  2018年   29篇
  2017年   30篇
  2016年   35篇
  2015年   23篇
  2014年   34篇
  2013年   196篇
  2012年   19篇
  2011年   19篇
  2010年   18篇
  2009年   19篇
  2008年   18篇
  2007年   27篇
  2006年   23篇
  2005年   18篇
  2004年   20篇
  2003年   14篇
  2002年   17篇
  2001年   21篇
  2000年   20篇
  1999年   14篇
  1998年   13篇
  1997年   25篇
  1996年   7篇
  1995年   12篇
  1994年   9篇
  1993年   10篇
  1992年   6篇
  1991年   4篇
  1990年   10篇
  1989年   11篇
  1988年   3篇
  1987年   7篇
  1986年   10篇
  1985年   8篇
  1984年   9篇
  1982年   3篇
  1981年   3篇
  1980年   1篇
  1979年   4篇
  1978年   1篇
  1977年   1篇
  1976年   1篇
  1975年   2篇
  1974年   1篇
  1971年   1篇
排序方式: 共有837条查询结果,搜索用时 31 毫秒
161.
162.
Universal Service: Defining the Policy Goal in the Age of the Internet   总被引:1,自引:0,他引:1  
The current universal service policies for the Internet focus almost entirely on physical connectivity. This emphasis is misplaced because the Internet is an overlay network that rides piggyback on the existing telecommunications infrastructure. The focus instead should be on Internet services and the end-user equipment and training needed to access them.  相似文献   
163.
164.
Literacy and numeracy are correlated throughout development, however, our understanding of this relation is limited. We explored the predictors of literacy and numeracy covariance (i.e., shared fluency between literacy and numeracy) in children (N = 1167, girls = 563) in rural Côte d'Ivoire, with specific focus on how developmental timing of instruction may relate to covariance. Many Ivorian children experience late enrollment and grade repetition, leading to variation in age-for-grade; participants were between grades 1 to 6, but their ages ranged from 5 to 15 (M = 9.19, SD = 2.07). Phonological awareness, numerical magnitude, ordinality, working memory, and inhibitory control were cognitive predictors of covariance. Age-for-grade was negatively related to covariance suggesting that covariance is related to timing of instruction.  相似文献   
165.
Even today, with all of the hearing technology and bilingual programs available, many Deaf children arrive at school with severe language delays. With a renewed focus on having Deaf children kindergarten-ready, assessment of language milestones becomes critical as seen in the campaign Child First and the legislation referred to as Language Equality & Acquisition for Deaf Kids (LEAD-K). Here, a strategy is proposed to ensure that Deaf children are kindergarten-ready. The focus is on a re-evaluation of the epistemologies of the social and individualized medical models of health, as well as Bronfenbrenner's bioecological systems approach, to assess all components that impact a Deaf child's ecology to permit maximizing their developmental potentials.  相似文献   
166.
167.
168.
Doing the Right Thing: Ethical Cyberspace Research   总被引:1,自引:0,他引:1  
With increased use of the Internet and other computer-based communications resources, researchers have begun examining interactions in, and uses of, 'cyberspace.' In considering ways to conduct ethical cyberspace research, some have looked to guidelines in their own disciplines. A potentially useful ethics statement for social science researchers to consider is that of the Association of Computing Machinery. Keeping in mind some of the ACM guidelines, as well as the similarities and differences between cyberspace and other communications media, may help researchers to be aware of their ethical responsibilities in conducting their research. The ACM guidelines, especially in consideration with other communications media, help remind researchers of the technological environment within which the social interactions being studied take place.  相似文献   
169.
170.
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