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   1969篇
  免费   42篇
  国内免费   3篇
教育   1547篇
科学研究   106篇
各国文化   26篇
体育   141篇
文化理论   26篇
信息传播   168篇
  2023年   16篇
  2022年   37篇
  2021年   39篇
  2020年   62篇
  2019年   111篇
  2018年   137篇
  2017年   112篇
  2016年   120篇
  2015年   62篇
  2014年   88篇
  2013年   426篇
  2012年   67篇
  2011年   55篇
  2010年   51篇
  2009年   61篇
  2008年   50篇
  2007年   57篇
  2006年   51篇
  2005年   39篇
  2004年   34篇
  2003年   27篇
  2002年   26篇
  2001年   30篇
  2000年   26篇
  1999年   14篇
  1998年   15篇
  1997年   12篇
  1996年   9篇
  1995年   7篇
  1994年   10篇
  1993年   10篇
  1992年   13篇
  1991年   12篇
  1990年   12篇
  1989年   8篇
  1988年   3篇
  1987年   9篇
  1986年   3篇
  1984年   5篇
  1982年   6篇
  1981年   5篇
  1979年   5篇
  1978年   4篇
  1977年   5篇
  1976年   6篇
  1972年   3篇
  1970年   4篇
  1969年   4篇
  1951年   6篇
  1946年   3篇
排序方式: 共有2014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

Carnosine was originally discovered in skeletal muscle, where it exists in larger amounts than in other tissues. The majority of research into the physiological roles of carnosine have been conducted on skeletal muscle. Given this and the potential for muscle carnosine content to be increased with supplementation, there is now a large body of research examining the ergogenic effects (or otherwise) of carnosine. More recent research, however, points towards a potential for carnosine to exert a wider range of physiological effects in other tissues, including the brain, heart, pancreas, kidney and cancer cells. Taken together, this is suggestive of a potential for carnosine to have therapeutic benefits in health and disease, although this is by no means without complication. Herein, we will provide a review of the current literature relating to the potential therapeutic effects of carnosine in health and disease.  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.
Book reviews     
Association of Research Libraries  相似文献   
6.
7.
8.
9.
Field work and structured interviews with 139 foreign sojourners in India were analyzed to describe the socialization of aliens into their role. Attitude scales measuring favorability toward the host country and people were also examined in relation to the respondent's occupational status and elapsed time in India. The results from the field work and interviews suggest that the privileges and high status accorded many Western visitors may contribute to the visitors' derogation of their hosts, a process which is often subtle but unmistakable. The visitors appear to become socialized into the world of aliens rather than the world of their hosts. The higher the visitor's status and the longer the elapsed time in India, the more pronounced these patterns appear. While the correlational nature of the study makes it impossible to determine whether persons with initially unfavorable attitudes are selected into the high status positions or whether the positions themselves create such attitudes, it appears reasonable to conclude that there would be less derogation and alienation if the lures of status and money were removed; persons would be neither selected nor influenced by such factors.  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