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   16776篇
  免费   251篇
  国内免费   54篇
教育   12414篇
科学研究   1168篇
各国文化   171篇
体育   1204篇
综合类   44篇
文化理论   83篇
信息传播   1997篇
  2021年   184篇
  2020年   232篇
  2019年   353篇
  2018年   503篇
  2017年   538篇
  2016年   495篇
  2015年   325篇
  2014年   455篇
  2013年   3369篇
  2012年   446篇
  2011年   464篇
  2010年   406篇
  2009年   399篇
  2008年   410篇
  2007年   383篇
  2006年   410篇
  2005年   360篇
  2004年   254篇
  2003年   247篇
  2002年   224篇
  2001年   364篇
  2000年   286篇
  1999年   251篇
  1998年   162篇
  1997年   155篇
  1996年   170篇
  1995年   142篇
  1994年   157篇
  1993年   137篇
  1992年   215篇
  1991年   208篇
  1990年   237篇
  1989年   215篇
  1988年   174篇
  1987年   181篇
  1986年   189篇
  1985年   180篇
  1984年   180篇
  1983年   170篇
  1982年   135篇
  1981年   140篇
  1980年   134篇
  1979年   192篇
  1978年   162篇
  1977年   114篇
  1976年   119篇
  1975年   112篇
  1974年   99篇
  1973年   106篇
  1971年   118篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
81.
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   
82.
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   
83.
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   
84.
85.
86.
87.
88.
89.
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   
90.
This paper demonstrates the application of module arithmetic for controlling the level of information security by a new technique referred as integer splitting. The basic definitions and concepts of the method are provided. The mathematical function of arising transformation is described in detail; its properties were studied and the basic theorems were proven that justify the use of splitting in practical applications. An active system was designed and characteristic cases of its operation are considered.  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