全文获取类型
收费全文 | 448篇 |
免费 | 17篇 |
专业分类
教育 | 380篇 |
科学研究 | 17篇 |
各国文化 | 4篇 |
体育 | 35篇 |
文化理论 | 2篇 |
信息传播 | 27篇 |
出版年
2021年 | 7篇 |
2020年 | 7篇 |
2019年 | 12篇 |
2018年 | 22篇 |
2017年 | 24篇 |
2016年 | 29篇 |
2015年 | 15篇 |
2014年 | 12篇 |
2013年 | 92篇 |
2012年 | 18篇 |
2011年 | 10篇 |
2010年 | 16篇 |
2009年 | 13篇 |
2008年 | 6篇 |
2007年 | 12篇 |
2006年 | 10篇 |
2005年 | 5篇 |
2004年 | 13篇 |
2003年 | 5篇 |
2002年 | 4篇 |
2001年 | 4篇 |
2000年 | 6篇 |
1999年 | 3篇 |
1998年 | 3篇 |
1997年 | 6篇 |
1996年 | 4篇 |
1995年 | 9篇 |
1994年 | 6篇 |
1993年 | 8篇 |
1992年 | 4篇 |
1991年 | 3篇 |
1990年 | 7篇 |
1989年 | 7篇 |
1988年 | 10篇 |
1987年 | 3篇 |
1986年 | 4篇 |
1984年 | 2篇 |
1983年 | 4篇 |
1982年 | 2篇 |
1981年 | 4篇 |
1980年 | 4篇 |
1979年 | 4篇 |
1978年 | 5篇 |
1977年 | 2篇 |
1976年 | 2篇 |
1974年 | 2篇 |
1972年 | 2篇 |
1967年 | 2篇 |
1956年 | 2篇 |
1892年 | 1篇 |
排序方式: 共有465条查询结果,搜索用时 15 毫秒
441.
David Green 《Teaching Statistics》1991,13(1):12-15
The British 1991 Census will include for the first time ever a question on race. This article describes the pilot surveys which were used to test the feasibility of including such a question. 相似文献
442.
443.
444.
445.
The Health Sciences Information Center of Cedars-Sinai Medical Center implemented an end user search service utilizing NLM's GRATEFUL MED software. A librarian-taught seminar is required of all end users. The course's teaching strategies are described. A survey of users was conducted and results are shared. 相似文献
446.
447.
448.
Nicola Green 《The Information Society》2002,18(4):281-292
The current explosion in mobile computing and telecommunications technologies holds the potential to transform "everyday" time and space, as well as changes to the rhythms of social institutions. Sociologists are only just beginning to explore what the notion of "mobility" might mean when mediated through computing and communications technologies, and so far, the sociological treatment has been largely theoretical. This article seeks instead to explore how a number of dimensions of time and space are being newly reconstructed through the use of mobile communications technologies in everyday life. The article draws on long-term ethnographic research entitled "The Socio-Technical Shaping of Mobile Multimedia Personal Communications," conducted at the University of Surrey. This research has involved ethnographic fieldwork conducted in a variety of locales and with a number of groups. This research is used here as a resource to explore how mobile communications technologies mediate time in relation to mobile spaces. First the paper offers a review and critique of some of the major sociological approaches to understanding time and space. This review entails a discussion of how social practices and institutions are maintained and/or transformed via mobile technologies. Ethnographic data is used to explore emerging mobile temporalities. Three interconnected domains in mobile time are proposed: rhythms of mobile use, rhythms of mobile use in everyday life, and rhythms of mobility and institutional change. The article argues that while these mobile temporalities are emerging, and offer new ways of acting in and perceiving time and space, the practical construction of mobile time in everyday life remains firmly connected to well-established time-based social practices, whether these be institutional (such as clock time, "work time") or subjective (such as "family time"). 相似文献
449.
Jennifer Loertscher David Green Jennifer E. Lewis Sara Lin Vicky Minderhout 《CBE life sciences education》2014,13(3):516-528
Threshold concepts (TCs) are concepts that, when mastered, represent a transformed understanding of a discipline without which the learner cannot progress. We have undertaken a process involving more than 75 faculty members and 50 undergraduate students to identify a working list of TCs for biochemistry. The process of identifying TCs for biochemistry was modeled on extensive work related to TCs across a range of disciplines and included faculty workshops and student interviews. Using an iterative process, we prioritized five concepts on which to focus future development of instructional materials. Broadly defined, the concepts are steady state, biochemical pathway dynamics and regulation, the physical basis of interactions, thermodynamics of macromolecular structure formation, and free energy. The working list presented here is not intended to be exhaustive, but rather is meant to identify a subset of TCs for biochemistry for which instructional and assessment tools for undergraduate biochemistry will be developed. 相似文献
450.
Alice Sullivan Samantha Parsons Richard Wiggins Anthony Heath Francis Green 《牛津教育评论》2014,40(6):739-763
To what extent and why do social origins matter for access to higher education, including access to elite universities? What is the role of private and selective schooling? This paper uses the 1970 British Cohort Study (BCS70) to analyse the trajectories of a generation currently in early middle age. We find that the influence of social origins, especially parental education, remains when both a wide range of cognitive measures and school attainment are controlled. Attending a private school is powerfully predictive of gaining a university degree, and especially a degree from an elite institution, while grammar schooling does not appear to confer any advantage. 相似文献