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   1820篇
  免费   27篇
教育   1472篇
科学研究   50篇
各国文化   46篇
体育   99篇
综合类   1篇
文化理论   3篇
信息传播   176篇
  2022年   17篇
  2021年   20篇
  2020年   43篇
  2019年   76篇
  2018年   95篇
  2017年   87篇
  2016年   86篇
  2015年   41篇
  2014年   78篇
  2013年   375篇
  2012年   48篇
  2011年   62篇
  2010年   51篇
  2009年   60篇
  2008年   60篇
  2007年   52篇
  2006年   46篇
  2005年   44篇
  2004年   32篇
  2003年   41篇
  2002年   33篇
  2001年   20篇
  2000年   29篇
  1999年   28篇
  1998年   19篇
  1997年   22篇
  1996年   10篇
  1995年   15篇
  1994年   20篇
  1993年   17篇
  1992年   14篇
  1991年   13篇
  1990年   22篇
  1989年   13篇
  1988年   10篇
  1987年   10篇
  1986年   7篇
  1985年   14篇
  1984年   8篇
  1983年   6篇
  1982年   10篇
  1981年   6篇
  1980年   10篇
  1979年   8篇
  1978年   8篇
  1977年   8篇
  1976年   9篇
  1975年   5篇
  1973年   6篇
  1971年   5篇
排序方式: 共有1847条查询结果,搜索用时 15 毫秒
31.
32.
ABSTRACT

The desire to be close to nature and live in tune with it grew as industrialisation, urbanisation and the impact of technology became increasingly ubiquitous at the turn of the twentieth century. Throughout Europe, model schools were established in rural environments. These private reform schools could not solve the problems of public urban schools. Founded on the initiative of teachers and parents, the Schullandheim (rural school hostel) emerged as a new form bringing urban education and schooling close to nature after the First World War in Germany. Even if related pedagogic activities developed at that time in other countries there is no evidence for comparable institutions. Besides tracing the development of Schullandheime, the article shows how the school hostel idea was embedded in the contemporary educational discussion about the influence large cities had on youth and explores the educational and cultural differences within the school hostel movement through the use of visual material.  相似文献   
33.
In each of two experiments, rats were trained to press the lever in a Skinner box, food reinforcement being available on a variable-interval 60-sec schedule (VI 60). There followed an “exposure phase” for which the levers were removed from the boxes, and then a final test with the levers replaced to assess the effects of the intervening treatment on instrumental responding. Experiment 1 showed that simple exposure to the box reduced the vigor of instrumental performance in comparison with a condition in which food was made available during the exposure phase. Animals which received no exposure treatment also showed a relatively high rate of response. Experiment 2 demonstrated that an exposure treatment in which the occurrence of food is signaled by a light stimulus also leads to a decline in instrumental responding. These results are held to support the notion that associations between the context and the reinforcer serve to energize appetitive instrumental behavior.  相似文献   
34.
35.
36.
37.
Parent or guardian perceptions play a specialized role in the evaluation of school teachers. Parents are important stakeholders in teacher success, they are in some instances partners in the teachers' work, parents have unique personal information about student learning, and they can report on the teacher duties to inform parents about the classroom and child progress. This study analyzed the responses of parents to 12 survey items concerning teacher performance in 201 classrooms. The surveys were used as part of an innovative teacher evaluation program in which teachers elected to include parent feedback as one objective data source for annual review. In this study three factors emerged as important concerns for parents: humane treatment of students, support for pupil learning, and effective communication and collaboration with parents. Recommendations for use of specific survey items can be based on the empirical results of this sampling. The data gathered by parent surveys define one dimension of quality which may vary in importance from one teacher to another.  相似文献   
38.
39.
OBJECTIVES: The objectives of this work were to identify the sources of information currently received, information-seeking behaviours, information requirements and preferences for future information provision amongst health and social care professionals providing care to children with health care needs. METHODS: Data were collected using a cross-sectional postal questionnaire survey. RESULTS: A wide range of information resources was reported as being available to professionals. However, a large proportion of respondents found it necessary to perform additional searches for information, suggesting that current resources were not satisfying their needs. The majority of professionals reported a preference for electronic formats, whilst a smaller proportion preferred hard copy materials. Participants promoted the use of informal networks as a means of support and exchange of information. CONCLUSION: Supplementing the information that is provided in electronic and hard copy formats, by enhancing informal networks, may be the most effective way of meeting the information needs of this group of professionals.  相似文献   
40.
Infant joint attention has been observed to be related to social-emotional outcomes in at-risk children. To address whether this relation is also evident in typically developing children, 52 children were tested at 12, 15, 24, and 30 months to examine associations between infant joint attention and social outcomes. Twelve-month initiating and responding to joint attention were related to 30-month social competence and externalizing behavior, even when accounting for 15-month temperament ratings, 24-month cognition and language, and demographic variables. These results suggest that, in addition to associations with language and cognition, infant joint attention reflects robust aspects of development that are related to individual differences in the emergence of social and behavioral competence in childhood.  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