全文获取类型
| 收费全文 | 11739篇 |
| 免费 | 8篇 |
专业分类
| 教育 | 9074篇 |
| 科学研究 | 1231篇 |
| 各国文化 | 2篇 |
| 体育 | 350篇 |
| 文化理论 | 385篇 |
| 信息传播 | 705篇 |
出版年
| 2022年 | 4篇 |
| 2021年 | 4篇 |
| 2020年 | 14篇 |
| 2019年 | 13篇 |
| 2018年 | 2179篇 |
| 2017年 | 2083篇 |
| 2016年 | 1568篇 |
| 2015年 | 113篇 |
| 2014年 | 123篇 |
| 2013年 | 133篇 |
| 2012年 | 219篇 |
| 2011年 | 698篇 |
| 2010年 | 837篇 |
| 2009年 | 434篇 |
| 2008年 | 642篇 |
| 2007年 | 1153篇 |
| 2006年 | 76篇 |
| 2005年 | 393篇 |
| 2004年 | 446篇 |
| 2003年 | 361篇 |
| 2002年 | 135篇 |
| 2001年 | 8篇 |
| 2000年 | 21篇 |
| 1999年 | 7篇 |
| 1998年 | 5篇 |
| 1997年 | 16篇 |
| 1996年 | 3篇 |
| 1995年 | 5篇 |
| 1994年 | 2篇 |
| 1991年 | 6篇 |
| 1984年 | 2篇 |
| 1982年 | 2篇 |
| 1980年 | 2篇 |
| 1979年 | 2篇 |
| 1977年 | 2篇 |
| 1972年 | 1篇 |
| 1967年 | 2篇 |
| 1966年 | 1篇 |
| 1962年 | 1篇 |
| 1960年 | 2篇 |
| 1945年 | 1篇 |
| 1942年 | 2篇 |
| 1938年 | 1篇 |
| 1880年 | 1篇 |
| 1872年 | 2篇 |
| 1871年 | 1篇 |
| 1870年 | 4篇 |
| 1868年 | 8篇 |
| 1867年 | 2篇 |
| 1865年 | 1篇 |
排序方式： 共有10000条查询结果，搜索用时 281 毫秒
1.
David Kaldewey 《Minerva》2018,56(2):161-182
This article analyzes the concept of “grand challenges” as part of a shift in how scientists and policymakers frame and communicate their respective agendas. The history of the grand challenges discourse helps to understand how identity work in science and science policy has been transformed in recent decades. Furthermore, the question is raised whether this discourse is only an indicator, or also a factor in this transformation. Building on conceptual history and historical semantics, the two parts of the article reconstruct two discursive shifts. First, the observation that in scientific communication references to “problems” are increasingly substituted by references to “challenges” indicates a broader cultural trend of how attitudes towards what is problematic have shifted in the last decades. Second, as the grand challenges discourse is rooted in the sphere of sports and competition, it introduces a specific new set of societal values and practices into the spheres of science and technology. The article concludes that this process can be characterized as the sportification of science, which contributes to self-mobilization and, ultimately, to self-optimization of the participating scientists, engineers, and policymakers. 相似文献
2.
3.
4.
5.
6.
William James (1919) characterises hypotheses as either live or dead. A hypothesis is live when it is taken into account as a ‘real possibility’. We follow James’ suggestion to not attribute intrinsic properties to hypotheses, but rather investigate how they came into being and look at the effects they generate. Expectations of digital technologies are a topic of vivid debate in the insurance industry. Before these expectations can become ‘live’, they have, in the first place, to be generated by market devices. We investigate how the reinsurance blogpost platform Open Minds functions as an ‘expectation generation device’ on the future of insurance markets. Combining Beckert’s work on the role of fictional expectations with the pragmatist turn in sociology of markets, we propose to study ‘expectation generation devices’, provoking expectations on economic markets. In our empirical analysis, we demonstrate the explicit fictional character of the Open Minds contributions, and analyse how a contained space of openness is generated to provoke expectations. We demonstrate how Open Minds can become live through circulation to other expectation generation sites in the insurance industry and beyond. We conclude by reflecting on the importance of expectation generation devices as a particular type of market devices. 相似文献
7.
8.
Anthony J. Sadar 《Science & Education》2018,27(1-2):233-235
9.
10.