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   2475篇
  免费   29篇
  国内免费   4篇
教育   1823篇
科学研究   223篇
各国文化   30篇
体育   193篇
综合类   12篇
文化理论   50篇
信息传播   177篇
  2023年   7篇
  2022年   25篇
  2021年   52篇
  2020年   65篇
  2019年   111篇
  2018年   145篇
  2017年   138篇
  2016年   102篇
  2015年   74篇
  2014年   88篇
  2013年   415篇
  2012年   81篇
  2011年   78篇
  2010年   77篇
  2009年   55篇
  2008年   57篇
  2007年   71篇
  2006年   51篇
  2005年   76篇
  2004年   77篇
  2003年   98篇
  2002年   73篇
  2001年   68篇
  2000年   43篇
  1999年   29篇
  1998年   9篇
  1997年   11篇
  1996年   11篇
  1995年   22篇
  1994年   11篇
  1993年   12篇
  1992年   12篇
  1991年   14篇
  1990年   11篇
  1989年   16篇
  1987年   7篇
  1985年   9篇
  1984年   10篇
  1983年   7篇
  1982年   14篇
  1981年   10篇
  1980年   19篇
  1979年   8篇
  1978年   9篇
  1977年   8篇
  1975年   8篇
  1974年   11篇
  1967年   6篇
  1966年   6篇
  1963年   6篇
排序方式: 共有2508条查询结果,搜索用时 953 毫秒
31.
The purpose of this study is to explore key factors that impact the college transition of aspiring underrepresented minority students in the biomedical and behavioral sciences, in comparison with White, Asian students and non-science minority students. We examined successful management of the academic environment and sense of belonging during the first college year. Longitudinal data were derived from the Higher Education Research Institute’s (HERI) 2004 Cooperative Institutional Research Program (CIRP) Freshman Survey and the 2005 Your First College Year (YFCY) Survey. Using a reformulation of the integration model (Nora, Barlow, and Crisp, 2005), we find concerns about college financing, negotiating family support and responsibility, and campus racial dynamics (perceived and behavioral) affect student adjustment and sense of integration in the first year. This study was made possible by the support of the National Institute of General Medical Sciences, NIH Grant Number 1 RO1 GMO71968-01. This independent research and the views expressed here do not indicate endorsement by the sponsor.  相似文献   
32.
33.
Research in Science Education - Students in upper secondary education encounter difficulties in applying mathematics in physics. To improve our understanding of these difficulties, we examined...  相似文献   
34.
This study investigates the relationship between working memory and language in young children growing up in a multilingual environment. The aim is to explore whether mechanisms of short-term storage and cognitive control hold similar relations to emerging language skills and to investigate if potential links are mediated by related cognitive abilities. A sample of 119 Luxembourgish 6-year-olds completed several assessments of working memory (complex and simple span), native and foreign vocabulary, syntax, reading, rhyme awareness, and fluid intelligence. Results showed that short-term storage and cognitive control manifested differential links with developing language abilities: Whereas verbal short-term storage was specifically linked to vocabulary; cognitive control manifested unique and robust links with syntax and early reading development. The study suggests that in young children the working memory system is composed of separate but interacting components corresponding to short-term storage and cognitive control that can be distinguished by the roles they play in supporting language acquisition.  相似文献   
35.
Learners studying mechanical or technical processes via dynamic visualizations often fail to build an accurate mental representation of the system’s movements. Based on embodied theories of cognition assuming that action, perception, and cognition are closely intertwined, this paper proposes that the learning effectiveness of dynamic visualizations could be enhanced by grounding the movements of the presentation in people’s own bodily experiences during learning. We discuss recent research on embodied cognition and provide specific strategies for how the body can be used to ground movements during the learning process: (1) making or observing gestures, (2) manipulating and interacting with objects, (3) using body metaphors, and (4) using eye movements as retrieval cues. Implications for the design of dynamic visualizations as well as directions for future research are presented.  相似文献   
36.
Being active in civic organizations can be expressed in multifarious forms of participation and commitment. With regard to individuals, the learning context it provides fosters personal development, sympathy for other perspectives, and social competencies in general and is, thus, particularly meaningful for young people in their second and third decades. With regard to organizations, civic participation strengthens the integration and dynamic adaptation of institutions to changing environments and, on a macro-level, raises social cohesion. The contexts of participation are various: not only in educational institutions and the world of work, but also in clubs, organizations and less formal groups, which are involved in social and political issues. Socio-structural and motivational factors, but also belonging to social networks determine the involvement in such forms of civic participation. Additionally, there is evidence of a mutual reinforcement of participation in different contexts. This is shown by the results of the DJI-Survey AID:A 2009.  相似文献   
37.
The present study was designed to investigate the relationships between role strains following the transition to secondary school and academic achievement. Academic engagement was hypothesized to mediate between role strain and achievement. The sample consisted of 749 students in their first year of secondary school. Four types of role strain were investigated: parent, teacher, school and peer. Parent and teacher role strains appeared to be negatively associated with academic achievement, as mediated through academic engagement. Parent and school role strain were directly and negatively associated with achievement. Results are discussed in the light of parenting practices and the developmental mismatch hypothesis.  相似文献   
38.
ABSTRACT

This article discusses issues concerning the spread of data-driven educational technologies in Brazil. Here, as elsewhere, educational technology continues to be promoted optimistically as the bearer of a panacea for historically-rooted social problems. Whilst some of these technologies have indeed contributed to important widening-participation programmes in the last two decades, widespread advocacy of technological ‘solutionism’, reflected in gradually stronger policy demands for efficiencies to be improved through ‘innovation’, has supported a relentless marketisation of the country’s educational systems. As transnational corporations position themselves to take control of key areas of these systems, threatening to restructure the whole sector, data-driven educational technologies provide the latest example in a series of ‘new’ ideas offered in an ever-expanding market. Based on the notion of ‘conceptual metaphors’, which encapsulate specific ways of perceiving, thinking and relating with the world, this article examines key metaphors underpinning discourses surrounding data-driven educational technologies in Brazil. In particular, the article analyses ways in which these specific metaphors may be promoting perspectives that ignore difference and obscure broader questions concerning education, thus contributing to the reproduction of previously existing problems and supporting new forms of colonisation.  相似文献   
39.
知识产权特征新论——兼析知识产权与有形财产权的区别   总被引:1,自引:0,他引:1  
知识产权本质上是一种无形财产权,本文通过对知识产权与有形财产权之比较,论述了知识产权的四方面特征,即客体的无形性、相对垄断性、法律效力在时空上的有限性及权利保护范围的不确定性.  相似文献   
40.
Objective: To analyze the association between attitudes of filial responsibility and adult child caregivers’ behaviors in the Southern Region of Brazil.

Methods: Cross-sectional study with 100 child caregivers of older adults. The data were collected through an interview using the protocol of filial responsibility adapted and validated to Brazilian Portuguese. Filial Expectation and Filial Piety scales evaluated the attitudes of filial responsibility. Caring behaviors assessed were: instrumental support, emotional, financial support, and companionship. The variables that presented p< .20 value in the bivariate analysis were inserted into a multivariate Poisson regression model.

Results: Financial and emotional support behaviors were significantly associated with filial piety (p = .050 and p = .001, respectively) and filial expectation (p = .013 and p = .023, respectively). Providing companionship was associated with filial piety (p = .015).

Conclusion: Attitudes of filial responsibility are associated with some but not all caregiving behaviors. Brazilians caring for older parents show more similarities to Chinese than to Canadian caregivers. Furthermore, filial responsibility and caregiving behaviors are strongly affected by Brazilian social and cultural norms. Reasons are discussed.  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