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   463篇
  免费   10篇
教育   375篇
科学研究   29篇
各国文化   5篇
体育   15篇
文化理论   1篇
信息传播   48篇
  2022年   5篇
  2021年   11篇
  2020年   12篇
  2019年   21篇
  2018年   18篇
  2017年   26篇
  2016年   18篇
  2015年   10篇
  2014年   16篇
  2013年   105篇
  2012年   12篇
  2011年   11篇
  2010年   11篇
  2009年   13篇
  2008年   9篇
  2007年   9篇
  2006年   10篇
  2005年   7篇
  2004年   9篇
  2003年   7篇
  2002年   5篇
  2001年   8篇
  2000年   7篇
  1999年   6篇
  1998年   4篇
  1997年   7篇
  1996年   4篇
  1995年   3篇
  1994年   3篇
  1993年   5篇
  1991年   4篇
  1990年   5篇
  1989年   3篇
  1988年   4篇
  1986年   6篇
  1985年   4篇
  1984年   6篇
  1983年   4篇
  1982年   4篇
  1981年   2篇
  1980年   4篇
  1979年   4篇
  1978年   3篇
  1977年   2篇
  1974年   2篇
  1973年   4篇
  1969年   4篇
  1967年   3篇
  1963年   2篇
  1935年   2篇
排序方式: 共有473条查询结果,搜索用时 15 毫秒
31.
Scallywags is a community‐based, early intervention programme for young children (aged 3–7) with behavioural, emotional and social problems, which integrates work in the home and school with a parenting curriculum and direct work with children. A pre‐post intervention study across multi‐sites of 340 participants is reported. Using standardised measures, the study found statistically significant reductions in problems at home and school experienced by children who completed the programme, and in parental stress levels. Participation was found to be high and the project acceptable to parents, many of whom would be described as hard to reach. The rigorous evaluation of this real‐life service and its positive outcomes highlight the potential of such programmes to tackle the needs of these children and families, and help prevent longer‐term problems associated with early onset behavioural problems, including social exclusion, antisocial behaviour and educational failure.  相似文献   
32.
The Alexandria Virginia Office of the Sheriff and the Alexandria Virginia Public School Board participated for two years in a state funded grant which focused on the delivery of special education services and regular compulsory education services to juveniles and young adults through the age of 21 years who were committed to the Alexandra Adult Detention Center. Provision of special education services to eligible individuals in jails is a unique concept and rarely provided given the transient, short-term nature of the population and other demands of the setting. The program model of team teaching supported full time inclusion of special education students with the general and compulsory education programs in the jail.  相似文献   
33.
The economic, educational and social environments of the students served by a community college are important factors in college performance accountability, policy analysis, program evaluation, and strategic planning. For example, previous research shows that income per county is a significant predictor of transfer rates for community colleges. However, conditions for the actual geographic area of the students served by a community college may differ, for various reasons, from the economic conditions for the county in which the college is located. This article describes the development of institutional or college-level indices as an enhancement to county-level data, their use as adjustment variables for California's Accountability Reporting for the Community Colleges (ARCC), and their applicability to other research and planning studies. The service area indices are created by combining the enrollment patterns of students by ZIP Code of residence with ZCTA (ZIP Code Tabulation Area) level economic and educational data from Census 2000.  相似文献   
34.
35.
Biodiversity science in China has seen rapid growth over recent decades, ranging from baseline biodiversity studies to understanding the processes behind evolution across dynamic regions such as the Qinghai-Tibetan Plateau. We review research, including species catalogues; biodiversity monitoring; the origins, distributions, maintenance and threats to biodiversity; biodiversity-related ecosystem function and services; and species and ecosystems’ responses to global change. Next, we identify priority topics and offer suggestions and priorities for future biodiversity research in China. These priorities include (i) the ecology and biogeography of the Qinghai-Tibetan Plateau and surrounding mountains, and that of subtropical and tropical forests across China; (ii) marine and inland aquatic biodiversity; and (iii) effective conservation and management to identify and maintain synergies between biodiversity and socio-economic development to fulfil China''s vision for becoming an ecological civilization. In addition, we propose three future strategies: (i) translate advanced biodiversity science into practice for biodiversity conservation; (ii) strengthen capacity building and application of advanced technologies, including high-throughput sequencing, genomics and remote sensing; and (iii) strengthen and expand international collaborations. Based on the recent rapid progress of biodiversity research, China is well positioned to become a global leader in biodiversity research in the near future.  相似文献   
36.
Behaviour problems in early childhood have a lasting impact on cognitive development and education attainment in later adolescence and into adulthood. Here we address the relationship conduct and hyperactivity problems at school entrance, and vocabulary acquisition in adolescence. We compare performance in identical assessments across two generations of British children born 30 years apart in 1970 (n = 15,676) and 2000/2 (n = 16,628) and find that both conduct and hyperactivity problems have a negative association with later vocabulary in both generations. We take advantage of rich longitudinal birth cohort data and establish that these relationships hold once family socioeconomic status and a child’s personal characteristics and earlier vocabulary acquisition are taken into account. We also find that teenagers today achieved substantively lower scores in the vocabulary assessment compared to their counterparts born 30 years earlier, and that this holds across all categories within each of the family and individual characteristics considered in this article. As vocabulary and language skills are key prerequisites for wider learning, we discuss implications the findings have for education policies.  相似文献   
37.
The present, study was conducted to determine the level of malondialdehyde (MDA) as an index of free radial induced lipid peroxidation and antioxidant vitamins-vitamins A, vitamin C and vitamin E in 75 confirmed cases of urolithiasis. Significantly high level of MDA (p<0.001) with significantly low levels of vitamin E (p<0.001) and vitamin A (p<0.001) with no significant decrease in vitamin C (p>0.05) were observed in the plasma of urolithiasis cases as compared to normal controls. In conclusion, it appears that a role of lipid peroxidation and oxidative function exists in the pathogenesis of urolithiasis. But, the exact mechanism how this occurs remains to be elucidated.  相似文献   
38.
39.
40.
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