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   1237篇
  免费   18篇
教育   998篇
科学研究   78篇
各国文化   12篇
体育   45篇
文化理论   13篇
信息传播   109篇
  2022年   8篇
  2021年   14篇
  2020年   12篇
  2019年   20篇
  2018年   31篇
  2017年   26篇
  2016年   31篇
  2015年   14篇
  2014年   20篇
  2013年   310篇
  2012年   20篇
  2011年   21篇
  2010年   19篇
  2009年   23篇
  2008年   26篇
  2007年   29篇
  2006年   20篇
  2005年   23篇
  2004年   26篇
  2003年   21篇
  2002年   39篇
  2001年   26篇
  2000年   21篇
  1999年   24篇
  1998年   12篇
  1997年   20篇
  1996年   15篇
  1995年   17篇
  1994年   18篇
  1993年   14篇
  1992年   14篇
  1991年   14篇
  1990年   18篇
  1989年   20篇
  1988年   16篇
  1987年   14篇
  1986年   9篇
  1985年   11篇
  1984年   15篇
  1983年   10篇
  1982年   18篇
  1981年   10篇
  1980年   16篇
  1979年   14篇
  1978年   10篇
  1977年   11篇
  1976年   15篇
  1975年   8篇
  1968年   7篇
  1967年   8篇
排序方式: 共有1255条查询结果,搜索用时 15 毫秒
111.
112.
Computational text analysis has become an exciting research field with many applications in communication research. It can be a difficult method to apply, however, because it requires knowledge of various techniques, and the software required to perform most of these techniques is not readily available in common statistical software packages. In this teacher’s corner, we address these barriers by providing an overview of general steps and operations in a computational text analysis project, and demonstrate how each step can be performed using the R statistical software. As a popular open-source platform, R has an extensive user community that develops and maintains a wide range of text analysis packages. We show that these packages make it easy to perform advanced text analytics.  相似文献   
113.
114.
The findings of an investigation assessing the differential effects of psycholinguistic training programs are reported. Methodologically, meta‐analysis, the analysis of analyses, was used to determine whether psycholinguistic training programs differentially affect the abilities measured by the Illinois Test of Psycholinguistic Abilities (ITPA). When findings were integrated by ITPA subtests, ITPA constructs, and salient study features, the training programs were found to differ with respect to improving psycholinguistic abilities. Overall results, however, indicated that the Peabody Language Development Kits (PDLK) were more consistently advantageous than either ITPA related programs or other types of training activities (e.g. structured teaching and perceptual‐motor approaches). These findings were validated in a multiple regression analysis comparing the three intervention methods. It was suggested that the structured and sequential nature of the PDLK was the major factor contributing to its greater effectiveness.  相似文献   
115.
116.
117.
118.
Luciano Floridi argues that every existing entity is deserving of at least minimal moral respect in virtue of having intrinsic value qua information object. In this essay, I attempt a comprehensive assessment of this important view as well as the arguments Floridi offers in support of it. I conclude both that the arguments are insufficient and that the thesis itself is substantively implausible from the standpoint of ordinary intuitions.  相似文献   
119.
This article develops and tests a model examining the relationship between firm globalization, scope of e-commerce use, and firm performance, using data from a large-scale cross-country survey of firms from three industries. We find that globalization leads to both greater scope of e-commerce use and improved performance, measured as efficiency, coordination, and market impacts. Scope of e-commerce use also leads to greater firm performance of all three types. Globalization has differential effects on B2B and B2C e-commerce, however, such that highly global firms are more likely to do B2B but less likely to do B2C. Our findings provide support for Porter's (1986) thesis that upstream business activities (namely, B2B) are more global while downstream business activities (B2C) are more local or multidomestic.  相似文献   
120.
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