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   206篇
  免费   5篇
  2023年   4篇
  2020年   1篇
  2019年   4篇
  2018年   4篇
  2017年   8篇
  2016年   6篇
  2015年   3篇
  2014年   2篇
  2013年   74篇
  2012年   6篇
  2011年   2篇
  2010年   5篇
  2009年   4篇
  2008年   2篇
  2007年   2篇
  2006年   4篇
  2005年   2篇
  2004年   4篇
  2003年   4篇
  2002年   3篇
  2001年   3篇
  1999年   9篇
  1998年   2篇
  1997年   1篇
  1996年   1篇
  1995年   8篇
  1993年   3篇
  1992年   1篇
  1991年   2篇
  1990年   1篇
  1989年   3篇
  1987年   2篇
  1986年   2篇
  1985年   1篇
  1983年   1篇
  1982年   5篇
  1981年   1篇
  1979年   2篇
  1978年   1篇
  1977年   1篇
  1976年   2篇
  1975年   2篇
  1974年   1篇
  1973年   1篇
  1972年   1篇
  1970年   4篇
  1969年   3篇
  1968年   1篇
  1967年   1篇
  1950年   1篇
排序方式: 共有211条查询结果,搜索用时 265 毫秒
91.
92.
93.
94.
Recently in their research Goodale et al. (2010) as well as that of Vardi et al. (2010) independently tackled issues of effectively measuring attrition/gloss rates on sickle blade tools from Southwest Asia. Interestingly, while applying new methodology to analyzing sickle tools from different cultural and temporal contexts, these two papers arrived at a similar conclusion: sickle tools were likely very expensive to make, and thus, considerations were made during their production to ensure long use-lives to benefit the people who made and used them in prehistory. Stemp et al. (in this issue) provide a methodological critique of both studies. In addressing their critique we make several points. First it is important to note that Stemp et al. provide no new experimental analysis to justify their assertions, and their critique is ultimately, at best, guesswork. Second, the minimal reanalysis of the data Stemp et al. do conduct arguably lead to the same preliminary conclusion at which we originally arrived: the prehistoric sickle blades we examined were used longer than those we replicated. As stated in our original paper, lithic use-wear studies often do not address issue of reliable and reproducible methods. We believe that our original study helps fill this missing component, and that measuring edge thickness is much less subjective than conventional features on stone tools traditionally identified microscopically. From our perspective, Stemp et al. present largely unsupported critical commentary, lacking substantial reanalysis or experiments to complement or justify their commentary. In the end Stemp et al. provide little more than interesting ideas and conjecture.  相似文献   
95.
Distance is a key idea in contemporary literatures on geography and the government of risk, and it is central to the work presented in this paper, which focuses on Western media representations of an innovative ‘first-generation’ non-contraceptive microbicide, Carraguard. A preventive technology that has been developed under the auspices of the US Population Council and the Bill and Melinda Gates Foundation, Carraguard is represented in the media in ways that produce certain noteworthy cultural geographies of HIV/AIDS. Via an analysis of a selection of such media representations of Carraguard, and focusing on sexual citizenship, political subjectivity and three socio-spatial orderings of risk (displacement, replacement and reorientation), we posit that Carraguard has effected a feminization of the government of risk at a distance. Specifically, we contend that HIV/AIDS has been displaced from the marginalized spaces of metropolitan centres of the West and replaced at the world's under-developed margins, being reoriented from dangerousness/deviance and the masculine to risk and the feminine in that process. In this work, we have taken up Dean's (1999) call to use an analytics of government to highlight the effects of certain ways of thinking and acting, and have also sought to respond to observations by Craddock (2000) that the silences in geography about HIV/AIDS and the regional coordinates of risk and vulnerability need to be addressed. In the final analysis, it appears that media representations of Carraguard reproduce and intensify much older geopolitical and socio-spatial orderings and relations of power that give effect to conceptions and practices of political obligation and sexual citizenship.  相似文献   
96.
We compared independent mobility (freedom to move around the neighbourhood – or similar – without adult accompaniment) among English and Australian schoolchildren. Parents reported mobility licences granted to their children (e.g. allowing them to cross main roads alone) and accompaniment on local trips. Children reported travel mode to school. We examined associations between mobility licences and independent school journeys, and accompaniment on local trips. Among 10–12-year-olds, English children had more licences than Australian children. Mobility licences were directly associated with independent school journeys among primary but not among secondary schoolchildren who travelled further; and inversely associated with parental accompaniment to other destinations. Influences on parental restrictions should be examined to promote children's independent mobility.  相似文献   
97.
98.
Recent public debates about Australia's children and young people have begun to acknowledge the direct impact of urban development on their health and well-being. This paper reviews a broad range of trans-disciplinary literature addressing child-friendliness in contemporary Australian cities, drawing particular attention to the fact that even some of the most recognised texts on children and young people in Australia still make few references in their analysis to the issue of place and neighbourhood. More specifically, the paper points to two particular research challenges confronting the ongoing study of young people's well-being in urban areas, including (a) the need for a more thorough analysis, both conceptual and applied, about how children and young people's well-being is affected by different urban forms and by the social and ecological variations that occur throughout cities; and (b) the focus on younger children needs to be complemented by a focus on adolescents and young adults who in turn need to be actively involved in confronting these challenges.  相似文献   
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