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   546篇
  免费   5篇
教育   419篇
科学研究   20篇
各国文化   6篇
体育   42篇
文化理论   4篇
信息传播   60篇
  2021年   5篇
  2020年   10篇
  2019年   18篇
  2018年   23篇
  2017年   16篇
  2016年   22篇
  2015年   22篇
  2014年   16篇
  2013年   110篇
  2012年   14篇
  2011年   16篇
  2010年   6篇
  2009年   7篇
  2008年   12篇
  2007年   12篇
  2006年   12篇
  2005年   16篇
  2004年   16篇
  2003年   12篇
  2002年   13篇
  2001年   7篇
  2000年   6篇
  1999年   4篇
  1998年   9篇
  1997年   3篇
  1996年   12篇
  1995年   6篇
  1994年   5篇
  1993年   8篇
  1990年   3篇
  1989年   3篇
  1988年   5篇
  1987年   3篇
  1986年   4篇
  1985年   9篇
  1984年   4篇
  1982年   11篇
  1981年   3篇
  1980年   5篇
  1979年   4篇
  1978年   6篇
  1977年   5篇
  1976年   3篇
  1974年   4篇
  1973年   3篇
  1972年   3篇
  1970年   3篇
  1968年   4篇
  1940年   2篇
  1835年   2篇
排序方式: 共有551条查询结果,搜索用时 15 毫秒
141.
The annual conference of the Special Libraries Association (SLA) provides an opportunity to observe trends in special libraries emerging, continuing, and fading. This column analyzes the program of the SLA 2015 conference held in Boston June 14–16, 2015, and compares it to the programs of previous SLA conferences. Prior analyses and observations of SLA conferences are discussed. Emerging trends noted at the 2015 conference include data management and analysis, print collections, laboratory safety, and prospect research. Consulting, outsourcing, strategic alignment, open access, digitization, institutional repositories, and taxonomies have maintained a prominent presence at SLA conferences over the years. The column closes by calling for more research on and analysis of the content of SLA and other conferences attended by special librarians to capture trends not yet appearing in the journal literature.  相似文献   
142.
Research analysing the operation of power within sport and physical activity has exposed the marginalisation and exclusion of women's sport in explicit and institutionalised ways. However, for women in recreational and alternative physical activities like surfing, sporting experiences lie outside institutionalised structures, thus requiring alternative surfing of conceptualising the processes of exclusionary power. In this paper, we focus on the voices of women recreational surfers to explore the changes which may or may not be occurring at smaller, more localised levels of women's engagement with surfing culture. An ethnographic methodology was employed to ask women how and why they engage in surfing and what it means for them, rather than asking questions based on existing assumptions. In presenting the data we draw upon the double meaning afforded by the term ‘to patronise’ as a means of framing the complex ways that women continue to be differentiated in surfing culture, and the ways they respond to this. In the final section, we employ a Foucauldian analytic lens to explore the subtle normalising practices in which women are incited to recognise and undertake the practices of the valued masculine ideal of the ‘good surfer’ through caring acts and advice offered by male surfers. This post-structuralist perspective offers space to think outside of simple resistance and reproduction, instead considering a complex space where women and men negotiate power in a range of ways from contextual, subjective positions. In conclusion, we argue that women recreational surfers are enacting alternative ways of operating within the power relations that circulate in the waves, creating ever-changing spaces for new ways of doing and knowing surfing to emerge.  相似文献   
143.
Planar nanochannels are fabricated using sacrificial etching technology with sacrificial cores consisting of aluminum, chromium, and germanium, with heights ranging from 18 to 98 nm. Transient filling via capillary action is compared against the Washburn equation [E. W. Washburn, Phys. Rev. 17, 273 (1921)], showing experimental filling speeds significantly lower than classical continuum theory predicts. Departure from theory is expressed in terms of a varying dynamic contact angle, reaching values as high as 83° in channels with heights of 18 nm. The dynamic contact angle varies significantly from the macroscopic contact angle and increases with decreasing channel dimensions.  相似文献   
144.
145.
146.
The shift from preoperational thought to operativity entails the construction of the idea of necessity. The concrete operativity tasks, particularly conservation, are analyzed from this perspective. The Genevans always assigned a significant role to the child's interaction with others as a critical factor in the transition to operativity. The results from a broad class of conservation training studies that are based upon various kinds of social interaction are also analyzed from the perspective of their efficacy, fidelity to necessity, and implications for school instruction.  相似文献   
147.
148.
149.
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