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   16798篇
  免费   246篇
  国内免费   54篇
教育   12451篇
科学研究   1158篇
各国文化   170篇
体育   1196篇
综合类   44篇
文化理论   79篇
信息传播   2000篇
  2021年   182篇
  2020年   230篇
  2019年   354篇
  2018年   501篇
  2017年   532篇
  2016年   495篇
  2015年   324篇
  2014年   456篇
  2013年   3384篇
  2012年   444篇
  2011年   456篇
  2010年   411篇
  2009年   399篇
  2008年   415篇
  2007年   395篇
  2006年   409篇
  2005年   361篇
  2004年   252篇
  2003年   243篇
  2002年   231篇
  2001年   375篇
  2000年   287篇
  1999年   249篇
  1998年   160篇
  1997年   155篇
  1996年   166篇
  1995年   142篇
  1994年   155篇
  1993年   138篇
  1992年   215篇
  1991年   208篇
  1990年   236篇
  1989年   218篇
  1988年   174篇
  1987年   186篇
  1986年   191篇
  1985年   176篇
  1984年   180篇
  1983年   170篇
  1982年   136篇
  1981年   141篇
  1980年   135篇
  1979年   192篇
  1978年   160篇
  1977年   113篇
  1976年   119篇
  1975年   111篇
  1974年   100篇
  1973年   105篇
  1971年   116篇
排序方式: 共有10000条查询结果,搜索用时 11 毫秒
81.
The current state of the Russian Science Citation Index is analyzed. Several areas for its further development identified by long-standing active users, such as data searching, refinement, and storage; current user alerts; data input with the Science Index license; patent information; and the application programming interface (API) are investigated.  相似文献   
82.
The study explored the role of second-screen use and binge-watching in moderating entertainment education (EE) effects. A pretest/posttest experiment of 273 viewers of East Los High measured the effects of exposure to three subplots, concerning alcohol abuse, abortion, and immigration. The effect of identification with characters on change in attitudes was significantly moderated by second-screen use and binge-watching. In particular, second-screening tended to enhance the positive impact of identification; whereas, among respondents who binge-watched the show, the effects of identification were weaker.  相似文献   
83.
This study extends instructional communication research on extra-class communication (ECC) by presenting an integrative analysis comparing the explanatory utility of student- and instructor-oriented reasons for student engagement in frequent ECC. Results from 495 college students suggested that student-oriented reasons, specifically the relational and functional student motives, were the only significant, positive predictors of students’ perceptions of frequent ECC engagement. Other student motives (excuse making, participation, sycophancy) and perceptions of instructor approachability did not significantly predict perceived frequency of ECC engagement.  相似文献   
84.
Is the reluctance to share bad news (i.e., the MUM effect) motivated more by a public display or private concern, and does it benefit mainly the messenger or the recipient? An experiment (N = 309) that crossed good/bad news with three communication channels (face-to-face, text messaging, e-mail) revealed that messenger reluctance was greatest under conditions of bad news and did not vary based on the channel through which the recipient contacted the messenger. In contrast with earlier work, this MUM effect was more consistent with a private fear of distressing the recipient. Theoretical implications and limitations are discussed.  相似文献   
85.
86.
87.
88.
89.
90.
Although science has received much attention as a political and educational initiative, students with learning disabilities (LD) perform significantly lower than their nondisabled peers. This meta‐analysis evaluates the effectiveness of instructional strategies in science for students with LD. Twelve studies were examined, summarized, and grouped according to the type of strategy implemented. Effect sizes (ES) were calculated for each study. Across all studies, a mean ES of .78 was obtained, indicating a moderate positive effect on students with LD science achievement. Findings also align with past reviews of inquiry‐based instruction for students with special needs, indicating that students with LD need structure within an inquiry science approach in order to be successful. Additionally, results suggest that mnemonic instruction is highly effective at increasing learning disabled students' acquisition and retention of science facts.  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