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   21720篇
  免费   194篇
  国内免费   9篇
教育   16249篇
科学研究   1809篇
各国文化   196篇
体育   1340篇
综合类   4篇
文化理论   540篇
信息传播   1785篇
  2023年   30篇
  2022年   61篇
  2021年   96篇
  2020年   204篇
  2019年   305篇
  2018年   2502篇
  2017年   2446篇
  2016年   1933篇
  2015年   387篇
  2014年   432篇
  2013年   2446篇
  2012年   512篇
  2011年   969篇
  2010年   1068篇
  2009年   664篇
  2008年   963篇
  2007年   1416篇
  2006年   335篇
  2005年   639篇
  2004年   650篇
  2003年   605篇
  2002年   334篇
  2001年   171篇
  2000年   160篇
  1999年   134篇
  1998年   119篇
  1997年   133篇
  1996年   135篇
  1995年   144篇
  1994年   134篇
  1993年   119篇
  1992年   117篇
  1991年   129篇
  1990年   112篇
  1989年   101篇
  1988年   94篇
  1987年   80篇
  1986年   67篇
  1985年   77篇
  1984年   69篇
  1983年   79篇
  1982年   83篇
  1981年   84篇
  1980年   80篇
  1979年   71篇
  1978年   50篇
  1977年   48篇
  1976年   58篇
  1975年   43篇
  1974年   35篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
Government‐sponsored student loans have emerged over the decades as a primary method of financing post‐secondary education across most North American jurisdictions. Despite this, the empirical literature examining the correlates of repayment difficulty and default in Canada has remained stagnant in recent years. This study taps into an underutilised data source—the 2013 National Graduates Survey—to examine the relationship between demographics, human capital, borrowing behaviour and other known predictors and repayment difficulty. Our logistic regression models demonstrate that disability status, geographic region and borrowing behaviour are correlated with loan default and repayment difficulty, while failing to verify the existence of other demographic effects routinely found in the existing literature. We discuss the implications of these findings, along with multiple avenues for further empirical work on this topic within Canada.  相似文献   
2.
3.
Fernandez  Frank  Baker  David P.  Fu  Yuan-Chih  Muñoz  Ismael G.  Ford  Karly Sarita 《Minerva》2021,59(1):79-98
Minerva - Over the course of the 20th century, unprecedented growth in scientific discovery was fueled by broad growth in the number of university-based scientists. During this period the American...  相似文献   
4.
ABSTRACT

To better understand doping-related attitude change, it is important to consider not only the amount of thinking (i.e., elaboration) done by message recipients, but also the favourability of their thoughts in response to the proposal, as well as the perceived validity in their thoughts. The main goal of the present study was to analyse the effects of a meta-cognitive process (i.e., thought validation) on attitudes related to doping. Thus, we randomly assigned participants to read a message either against or in favour of legalising several doping behaviours. Participants listed their thoughts regarding the proposal and indicated the perceived validity in their thoughts, then reported their attitudes. As hypothesised, the message against legalisation elicited more unfavourable thoughts and attitudes than the message in favour of legalisation. Most relevantly, the effects of the message direction on attitudes were greater for participants with higher (vs. lower) levels of thought validity. Furthermore, consistent with the thought validation process, results revealed that thought favourability was a better predictor of attitudes for participants with higher (vs. lower) perceived thought validity, indicating that perceiving one’s thoughts as valid plays an important role in persuasion. These findings provide novel insights for research and interventions regarding doping in sports.  相似文献   
5.
This research identifies main feedback dynamics associated with social processes necessary to make sense of ambiguous project goals, typical of large digital government projects. The study reports on findings from a case analysis using participatory approaches in system dynamics, based on a digital government project integrating information systems of New York's criminal justice agencies. Findings stress the importance of visuals in the sensemaking process that results from the interaction of technical and social outcomes produced through identifying and continuously re-interpreting main project issues and goals. Project analyses suggest that requisite elements of successfully managing this type of project include 1) facilitation that enables diversity of ideas, 2) shared visuals and re-presentations of participants' efforts to work on the issues, and 3) iterative social construction of objectives, progress, and valid processes for doing the work; each of these plays a role in three different feedback processes sustaining (or undermining) the group engagement needed to yield successful integrative work. The study contributes to the literature in digital government by introducing the lenses of people-centered project management processes, an emerging approach in project management, to underscore the role of social processes in technical projects.  相似文献   
6.
The 2015 radio controversy “SaladGate” revealed a lack of female music artists gaining airplay. This study expands a previous gender analysis of American music radio into a longitudinal study. A content analysis of 192 stations revealed that airplay is increasing for females. However, most of these gains came from the Top-40 format, echoing concerns about the recording industry’s preference that women become pop stars, leaving all other musical genres to men. The results suggest the existence of a gender order in music radio, one that works hand-in-hand with the music industry to exclude women.  相似文献   
7.
8.
9.
10.
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