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   1408篇
  免费   40篇
  国内免费   3篇
教育   1040篇
科学研究   115篇
各国文化   28篇
体育   114篇
文化理论   19篇
信息传播   135篇
  2022年   8篇
  2021年   11篇
  2020年   25篇
  2019年   37篇
  2018年   44篇
  2017年   60篇
  2016年   40篇
  2015年   37篇
  2014年   36篇
  2013年   323篇
  2012年   35篇
  2011年   42篇
  2010年   27篇
  2009年   38篇
  2008年   36篇
  2007年   33篇
  2006年   32篇
  2005年   27篇
  2004年   30篇
  2003年   38篇
  2002年   29篇
  2001年   14篇
  2000年   17篇
  1999年   27篇
  1998年   20篇
  1997年   17篇
  1996年   17篇
  1995年   12篇
  1994年   8篇
  1993年   15篇
  1992年   18篇
  1991年   14篇
  1990年   18篇
  1989年   22篇
  1988年   13篇
  1987年   15篇
  1986年   12篇
  1985年   10篇
  1984年   13篇
  1983年   16篇
  1982年   19篇
  1981年   11篇
  1980年   8篇
  1979年   13篇
  1978年   15篇
  1976年   12篇
  1975年   7篇
  1973年   6篇
  1970年   7篇
  1964年   6篇
排序方式: 共有1451条查询结果,搜索用时 15 毫秒
141.
In this paper, we investigate the relationship between location patterns, innovation processes and industrial clusters. In order to do this we extend a transactions costs-based classification into a knowledge-based taxonomy of clusters, along the lines suggested by a critical revision of the main assumptions underlying most of the existing literature on spatial clusters. Our arguments show that the transactions costs approach and the innovation and technological regimes framework are broadly consistent, and that real insights into the microfoundations, nature, and evolution of clusters can be provided by these classification systems.  相似文献   
142.
There has been considerable investment in the use of interactive whiteboard technology in schools in the UK. There is evidence that whilst teachers understand such technology, many do not understand the nature and implications of interactive learning. Observation and analysis of 50 video‐recorded lessons taught by ‘successful’ teachers drawn from mathematics and modern foreign language departments in secondary schools led to the classification of three types of practice representing a spectrum of increasing interactivity. The nature of this good practice was analysed together with criteria for assessing the changes being wrought by technology in approaches to learning and teaching. The investigation concluded that the use of new technology alone cannot lead to enhanced learning. Teachers also need training to develop awareness of the relationship between approaches to interactive learning and conceptual and cognitive development in subject areas.  相似文献   
143.
144.
145.
146.
147.
This article is about the quantitative research practices and methodologies that are used in distance education (DE). It begins with an analysis and assessment of a segment of the DE research literature, DE/classroom comparison studies, based on a recently completed meta-analysis of that literature from 1985 to 2002. Overall, the 232 studies reviewed were judged to be of poor methodological quality and severely lacking in critical information about research practices. Studies of synchronous and asynchronous DE are discussed separately and recommendations are made for improving designs and measures within these patterns. Suggestions for future quantitative research areas are provided. In discussing these findings, we recognize that high-quality research is being conducted in the field and that qualitative forms of research contribute greatly to the mosaic of evidence that is the base of available knowledge about DE. Finally, three organizations, the What Works Clearinghouse (USA), EPPI-Centre (UK), and the Campbell Collaboration (international), all devoted to improving the quality of research and research synthesis in education, are described briefly; suggestions are made as to how their philosophies and approaches for judging the worthiness of research evidence can be used to improve DE research.  相似文献   
148.
A preliminary evaluation of classroom use of CD-I and CDTV in five schools is described. Information is provided on the pedagogical, operational, and logistical characteristics of these interactive media technologies compared to interactive video. A number of benefits are described, but it is suggested that poorly designed or inappropriate software and technology fatigue amongst teachers contribute to the low take-up of these systems in the classroom.  相似文献   
149.
20 3-month-old infants participated in a nonsocial contingency task immediately following a social interaction with their mothers. A measure of the time the dyads spent in a state of vocal turn-taking predicted individual differences in the infants' subsequent performance on the contingency task. These results parallel the social transfer effects we reported earlier in which the turn-taking dimension of social structure was experimentally manipulated to assess its effect on a subsequent nonsocial contingency task.  相似文献   
150.
Introduction     
The expansion of higher education in Latin America before 1980 resulted from the growing demand of the urban middle classes. The state responded with a benevolent attitude, except when political circumstances led to police repression. The deep crisis and the emergence of new economic policies in the 1980s drastically changed this picture. Funds for further growth are not available and there is no longer a favorable political climate for the universities. The new ideological and political scene favors policies aimed at abandoning incremental formulae for state funding, increasing private funding, rationalizing spending, promoting institutional and program differentiation, introducing evaluation as a major policy instrument and checking enrolment growth. Negotiation over these issues in democratic regimes has become cumbersome and difficult. A set of policies for the private sector is also emerging though these are ineffectual if state funding is not forthcoming. Though flexibility over accreditation became common in the 1970s and 1980s there is now closer scrutiny of such matters. Legal frameworks have favored differentiation in the private sector also, including recognizing profit-oriented institutions which are capable of absorbing excess demand but which are less closely regulated than the older and more prestigious institutions.  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