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   1115篇
  免费   25篇
教育   886篇
科学研究   25篇
各国文化   12篇
体育   117篇
文化理论   6篇
信息传播   94篇
  2023年   5篇
  2022年   14篇
  2021年   22篇
  2020年   31篇
  2019年   54篇
  2018年   54篇
  2017年   54篇
  2016年   60篇
  2015年   35篇
  2014年   36篇
  2013年   277篇
  2012年   34篇
  2011年   33篇
  2010年   33篇
  2009年   35篇
  2008年   31篇
  2007年   16篇
  2006年   24篇
  2005年   23篇
  2004年   12篇
  2003年   13篇
  2002年   15篇
  2001年   10篇
  2000年   9篇
  1999年   16篇
  1998年   4篇
  1997年   6篇
  1996年   13篇
  1995年   12篇
  1994年   6篇
  1993年   15篇
  1992年   11篇
  1991年   5篇
  1990年   7篇
  1989年   7篇
  1988年   7篇
  1987年   7篇
  1986年   4篇
  1985年   5篇
  1984年   6篇
  1982年   5篇
  1981年   7篇
  1980年   4篇
  1976年   4篇
  1974年   5篇
  1973年   7篇
  1972年   5篇
  1971年   5篇
  1967年   5篇
  1966年   4篇
排序方式: 共有1140条查询结果,搜索用时 171 毫秒
91.
Utilising the oral language of a principal leading an inner-city at-risk elementary school in a large urban school district in the southwestern USA, the researchers tested behavioural integrity and the dimensions of source credibility (competence, goodwill, and trustworthiness) as antecedents to Motivating Language Theory and the ML Model. Teacher perception data at the Title I elementary school was used for this quantitative study. Over 95% of the teachers responded to a survey each year for a three-year period. Each year, there were statistically significant correlations between each of the antecedents and motivating language. The antecedents accounted for 66–75% of the total variance for motivating language depending on the year based on regression analysis. The results of this study extend the field of Motivating Language Theory and the ML Model, and further explain how the work of principals is accomplished.  相似文献   
92.
93.
In 2015, student learning programs at the University of Saskatchewan moved organizationally to the university library. While these services resided physically in the library as part of the Learning Commons partnership, this recent change presents the library with a new focus and responsibility for broader student learning support and academic skill development. Highlighting examples of organizational integration of student learning support, this article uses a proximity perspective, suggesting that geographical proximity of services in the learning commons does not go far enough to achieve the deeper collaboration and integration necessary for holistic and integrated learning, and that organizational proximity is needed.  相似文献   
94.
To assess the relevance of the Public Library System in the political agenda, programs presented by the Political Parties competing in Regional and Local elections in the Spanish Region of Castilla-La Mancha were analyzed and the proposals about these library institutions were identified.

All Regional programs were collected and also an ample sample from the Municipalities for the 2007 and 2015 elections, trying to find the differences influenced by the impact of the financial crisis and recession on the public-library policies.

The conclusion arrived at was that, although the Public Libraries may be reasonably present in the studied programs, there is a low awareness by the Political Parties of the main problems.  相似文献   

95.
In this study, the fibers of invasive species Agave americana L. and Ricinus communis L. were successfully used for the first time as new sources to produce cytocompatible and highly crystalline cellulose nanofibers. Cellulose nanofibers were obtained by two methods, based on either alkaline or acid hydrolysis. The morphology, chemical composition, and crystallinity of the obtained materials were characterized by scanning electron microscopy(SEM) together with energy-dispersive X-ray spectroscopy(EDX), dynamic light scattering(DLS), X-ray diffraction(XRD), and Fourier transform infrared(FTIR)spectroscopy. The crystallinity indexes(CIs) of the cellulose nanofibers extracted from A. americana and R. communis were very high(94.1% and 92.7%, respectively). Biological studies evaluating the cytotoxic effects of the prepared cellulose nanofibers on human embryonic kidney 293 T(HEK293 T) cells were also performed. The nanofibers obtained using the two different extraction methods were all shown to be cytocompatible in the concentration range assayed(i.e., 0-500 μg/mL). Our results showed that the nanocellulose extracted from A. americana and R. communis fibers has high potential as a new renewable green source of highly crystalline cellulose-based cytocompatible nanomaterials for biomedical applications.  相似文献   
96.
This article explores some of the issues around the agenda for workforce reform as it applies to professionals who work in early years classrooms (4–7 year olds), who work alongside class teachers in supporting learning. Their changing roles, responsibilities and professional identities are examined through a small scale case study of four women, two nursery nurses and two teaching assistants, from an infants school in a suburb of Bristol. Their close professional and personal relationships with the six female class teachers with whom thery work are considered. Their stories are analysed for their significance as women whose levels of skill and dedication are undervalued in terms of career structure, salary and job security. Whilst contributing to the debates around the changing roles and the valuable work of teaching assistants, this research endorses the view that these professionals' voices are too often silenced in educational debates and in strategic decision making.  相似文献   
97.
98.
99.
100.
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