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   2039篇
  免费   37篇
  国内免费   3篇
教育   1634篇
科学研究   57篇
各国文化   29篇
体育   90篇
综合类   1篇
文化理论   8篇
信息传播   260篇
  2023年   14篇
  2022年   17篇
  2021年   18篇
  2020年   38篇
  2019年   85篇
  2018年   84篇
  2017年   95篇
  2016年   93篇
  2015年   42篇
  2014年   93篇
  2013年   489篇
  2012年   58篇
  2011年   61篇
  2010年   42篇
  2009年   46篇
  2008年   89篇
  2007年   57篇
  2006年   59篇
  2005年   45篇
  2004年   48篇
  2003年   39篇
  2002年   26篇
  2001年   31篇
  2000年   29篇
  1999年   27篇
  1998年   26篇
  1997年   22篇
  1996年   27篇
  1995年   27篇
  1994年   31篇
  1993年   21篇
  1992年   22篇
  1991年   16篇
  1990年   14篇
  1989年   21篇
  1988年   13篇
  1987年   9篇
  1986年   5篇
  1985年   8篇
  1984年   10篇
  1983年   6篇
  1982年   8篇
  1981年   7篇
  1980年   7篇
  1979年   4篇
  1978年   5篇
  1977年   6篇
  1975年   6篇
  1974年   4篇
  1917年   4篇
排序方式: 共有2079条查询结果,搜索用时 15 毫秒
141.
Purpose: This case series describes the effect of home intravenous (IV) antibiotic therapy on spirometry and exercise capacity in a group of children with cystic fibrosis (CF). Methods: Outcomes from 10 children with CF who were prescribed a 14-day course of home IV antibiotics for a respiratory exacerbation are reported. All children performed spirometry and a modified shuttle test (MST) before and after 14-days of home IV therapy. Results: After 14 days, FEV1 increased by mean (± SE) 12 ± 4 % (p < 0.05) but mean MST did not improve compared to baseline. All children improved or maintained spirometry values with treatment, however, only 5 improved MST distance. Conclusion: After 14 days of home IV antibiotic therapy, a significant improvement in spirometry, but not exercise capacity, was seen in this small series of children with CF. The lack of improvement in exercise capacity for all children following home IV antibiotic therapy suggests factors other than spirometry determine exercise capacity. Identifying and investigating the factors that influence exercise capacity during home IV antibiotic therapy requires further investigation.Key Words: cystic fibrosis, home IV therapy, FEV1, Modified Shuttle Test  相似文献   
142.
The present study examined changes in multicultural, Muslim and acculturation attitudes in the Dutch military. In 2008 and 2006 two large quantitative surveys were conducted within the Dutch military. The results of the survey in 2006 showed a slightly negative attitude of Dutch Defense employees towards multiculturalism and a strong preference for assimilation in the public context. Interestingly, in 2008 attitudes towards Multiculturalism had become more positive as compared to 2006. Although in 2008 a higher rate of employees preferred the integration strategy, the majority still favored migrants to adopt an assimilation strategy.  相似文献   
143.
144.
145.
The purpose of this research project was to gain a greater understanding of daily routines of 4–7 year olds regarding physical activity and nutrition practices in typical early learning environments. The settings selected for this observational study included Head Start, primary, and after-school learning environments in a city in the southeast. Specifically, this exploratory study focused on the research question: What are typical daily physical activity and nutrition patterns in community-based early learning settings for young children 4–7 years of age in the United States? Two overarching themes were identified through data analysis: restriction of activity and restriction of physical movement. Results indicated that children in elementary school settings had fewer opportunities for indoor and outdoor physical activity than children in other settings and that children seek to be physically active and will do so when given the opportunity. Increasing time for both structured and unstructured physical activity and play for children ages 4–7 in early learning settings was recommended by the researchers.  相似文献   
146.
Many very young children attend early care and education programs, but current information about the quality of center-based care for toddlers is scarce. Using 2 observation instruments, the Infant/Toddler Environment Rating Scale–Revised (ITERS-R) and the Classroom Assessment Scoring System, Toddler Version (CLASS-Toddler), 93 child care classrooms for toddlers across the state of North Carolina, representing a range of quality, were assessed to determine overall quality, and associations between observed quality and teachers' ratings of child behavior problems and competence outcomes using the Brief Infant Toddler Social Emotional Assessment. Research Findings: Findings indicated that overall, toddler classrooms were rated as being of moderate quality. Associations between observed quality and teacher-reported child behavior problems and competence outcomes indicated that CLASS-Toddler ratings were positively associated with fewer behavior problems; specifically, children in classrooms with higher levels on the CLASS-Toddler domains of Emotional and Behavioral Support as well as Engaged Support for Learning were reported to have fewer behavior problems. Similarly, the ITERS-R subscales of Interaction and Listening and Talking were positively related to fewer reported behavior problems. Regression models showed that the CLASS-Toddler Emotional and Behavioral Support domain predicted differences in child behavior problems. Practice or Policy: Findings suggest the need for additional research related to very young children's experiences in center-based child care to examine associations between quality and child experiences and outcomes. Children's experiences over time need to be examined to understand how these early child care experiences are related to children's later school adjustment and performance. On a related note, professional development for teachers in toddler classrooms needs to be addressed in terms of preparing effective teachers for young children during the toddler developmental period.  相似文献   
147.
It is an accepted fact that resilience is a multifaceted phenomenon which has been proven to affect the learning, growth and development of individuals. A child’s formative years are a time when resilience needs to be promoted so they can cope with the challenges of life. This paper reports some of the findings of an Australian Research Council-funded longitudinal study which investigated resilience in the context of significant transitions in the lives of children and young adults. This study explored the conditions and characteristics of resilience, looking at the educational, health, work-related or leisure interventions that support and foster resilience. Outlined in this paper are findings from the early years cohort of the study involving teachers’ pedagogy informing the practical approaches and strategies that promote and protect resilience in young children. It is argued that teachers working with young children need to be mindful of using enabling strategies in which their practice works purposively with the school environment and the building of relationships.  相似文献   
148.
Tertiary Education and Management - Gray, C., Swain, J., and Rodway-Dyer, S. (2014). Student voice and engagement: connecting through partnership. Tertiary Education and Management, 20(1), pp....  相似文献   
149.
Currently educational research literature demonstrates wide discussion and endorsement of ‘distributed’ leadership while concurrently traditional, hegemonic forms prevail in practice. This article investigates understandings about educational leadership held by Australian school principals. The article describes the contradictory conceptions about educational leadership currently in circulation. It interrogates underlying assumptions and questions how both hegemonic and newer leadership conceptions and assumptions serve educational leaders. Data from principals around the country and across education systems reinforced the predominance of un-theorised or under-theorised notions about leadership, with similar assumptions found in important policy artefacts and practices. This article emerges from interviews with 100 principals focusing on their professional learning needs, which revealed interesting ideas, issues and dilemmas concerning ‘leadership’. It fills a gap in research on distributed leadership by exploring contradictions inherent in policy, practice and understandings in this area. The article is structured into four sections. First, extant literature on this topic and the research are explained. Second, the article focuses on principals' conceptions about leadership and those inherent within important policy and practical artefacts. A discussion of the findings focuses on the discrepancy between theory and policy endorsement and the views of practitioners. Finally, the article canvasses the implications of the research.  相似文献   
150.
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