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   2707篇
  免费   73篇
  国内免费   4篇
教育   2140篇
科学研究   98篇
各国文化   34篇
体育   170篇
文化理论   34篇
信息传播   308篇
  2024年   3篇
  2023年   36篇
  2022年   52篇
  2021年   78篇
  2020年   103篇
  2019年   163篇
  2018年   236篇
  2017年   212篇
  2016年   193篇
  2015年   112篇
  2014年   145篇
  2013年   547篇
  2012年   116篇
  2011年   86篇
  2010年   66篇
  2009年   79篇
  2008年   79篇
  2007年   59篇
  2006年   58篇
  2005年   52篇
  2004年   39篇
  2003年   36篇
  2002年   27篇
  2001年   21篇
  2000年   21篇
  1999年   10篇
  1998年   16篇
  1997年   12篇
  1996年   9篇
  1995年   8篇
  1994年   6篇
  1993年   11篇
  1992年   13篇
  1991年   9篇
  1990年   11篇
  1989年   3篇
  1988年   6篇
  1987年   4篇
  1986年   4篇
  1983年   4篇
  1982年   3篇
  1978年   4篇
  1977年   2篇
  1976年   3篇
  1972年   2篇
  1971年   2篇
  1970年   2篇
  1967年   2篇
  1964年   2篇
  1933年   2篇
排序方式: 共有2784条查询结果,搜索用时 15 毫秒
1.
Seventy-nine 3-year olds and their mothers participated in a laboratory-based task to assess maternal hostility. Mothers also reported their behavioral regulation of their child. Seven years later, functional magnetic resonance imaging data were acquired while viewing emotional faces and completing a reward processing task. Maternal hostility predicted more negative amygdala connectivity during exposure to sad relative to neutral faces with frontal and parietal regions as well as more negative left ventral striatal connectivity during monetary gain relative to loss feedback with the right posterior orbital frontal cortex and right inferior frontal gyrus. In contrast, maternal regulation predicted enhanced cingulo-frontal connectivity during monetary gain relative to loss feedback. Results suggest parenting is associated with alterations in emotion and reward processing circuitry 7–8 years later.  相似文献   
2.
ABSTRACT

This forum brings together food, (in)security, and communication. The authors participating in this forum center communication as both process and tool for understanding, mitigating, and making meaning of food (in)security. The nine authors together discuss the role of communication in food (in)security, the central challenges for scholars and practitioners working on food (in)security, and the creative possibilities and impacts influencing the future of food (in)security. The forum produces a call for applied scholars to re-imagine communication frameworks in order to make meaningful differences in their communities.  相似文献   
3.
In November 2005, UNESCO‐CEPES organized a conference on Private Higher Education in Europe and Quality Assurance and Accreditation from the Perspective of the Bologna Process Objectives. Thirteen country reports and a comparative analysis study were commissioned for this specific initiative. The countries included in the project were: Albania, Austria, Bulgaria, Estonia, Germany, Italy, Poland, Portugal, Romania, Russia, Spain, Turkey and the Ukraine. This article provides a brief summary of several main points of the comparative analysis study. The data referred to in this summary is taken solely from the sources cited in the full text study.  相似文献   
4.
Anna E. Altmann teaches children's literature in the School of Library and Information Studies at the University of Alberta.  相似文献   
5.
6.
7.
The Standards Committee of the Veterinary Medical Libraries Section was appointed in May 2000 and charged to create standards for the ideal academic veterinary medical library, written from the perspective of veterinary medical librarians. The resulting Standards for the Academic Veterinary Medical Library were approved by members of the Veterinary Medical Libraries Section during MLA '03 in San Diego, California. The standards were approved by Section Council in April 2005 and received final approval from the Board of Directors of the Medical Library Association during MLA '04 in Washington, DC.  相似文献   
8.
ABSTRACT

Control of relative humidity (RH) for collections care is challenging in U.K. historic houses because they are often highly ventilated with poor heat retention, a porous building fabric and naturally tend to high (60–80%) RH if unheated. The significance of the building means that large-scale modifications and installation of air handling systems may be unfeasible and undesirable for the conservation of the building. In the late 1980s the National Trust, for English, Wales and Northern Ireland, investigated conservation heating as an RH control method that works with the natural environment of historic buildings, mimicking historic heating and requiring only modification of existing heating services or a light touch installation of new heating systems. The National Trust adopted conservation heating as its preferred method for environmental control in historic buildings from the 1990s. This method was presented at the IIC 1994 Ottawa congress on preventive conservation. Conservation heating has since been adopted by many historic house management organisations, particularly across north-west Europe, where it is well suited to the climate. This paper reviews conservation heating developments implemented by the National Trust since 1994, in response to a changing external context, new knowledge and developments in operational practice.  相似文献   
9.
ABSTRACT

Social media is a powerful tool for building an online presence, but it asks a lot. While it affords plentiful opportunities for professional development and networking, building a professional brand in an online space is not without its drawbacks and risks. By working from a set of actionable principles and benchmarks, users can minimize frustrations and setbacks to build a useful professional presence, all while imbuing the web with the tenets of good information stewardship.  相似文献   
10.
Social media have become an integral part of online news use, affecting how individuals find, consume, and share news. By applying the Theory of Reasoned Action (TRA), this study investigates the effects of motives, attitude, and intention on news-sharing behavior among German social media users (n = 333). Findings show that news-sharing attitude and subjective norms have a positive effect on news-sharing intention, which in turn has a positive effect on actual news-sharing behavior. Taken together, we see that a new media behavior in the early phases of its societal diffusion—like social media news sharing in Germany in 2015—can mainly be explained by a rational choice logic and is rooted in the motives of socializing and information seeking. This finding thus reflects the double nature of social media as a means for both information retrieval and social grooming.  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