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   496篇
  免费   4篇
各国政治   12篇
工人农民   53篇
世界政治   35篇
外交国际关系   20篇
法律   234篇
中国政治   6篇
政治理论   134篇
综合类   6篇
  2024年   3篇
  2023年   5篇
  2022年   2篇
  2021年   3篇
  2020年   15篇
  2019年   14篇
  2018年   17篇
  2017年   11篇
  2016年   16篇
  2015年   16篇
  2014年   11篇
  2013年   70篇
  2012年   16篇
  2011年   19篇
  2010年   10篇
  2009年   12篇
  2008年   27篇
  2007年   28篇
  2006年   12篇
  2005年   10篇
  2004年   14篇
  2003年   18篇
  2002年   9篇
  2001年   17篇
  2000年   7篇
  1999年   4篇
  1998年   4篇
  1997年   8篇
  1996年   4篇
  1995年   7篇
  1994年   7篇
  1993年   6篇
  1992年   7篇
  1991年   1篇
  1990年   2篇
  1989年   5篇
  1988年   4篇
  1987年   7篇
  1986年   13篇
  1985年   10篇
  1984年   3篇
  1983年   4篇
  1982年   5篇
  1981年   3篇
  1980年   4篇
  1979年   4篇
  1977年   3篇
  1976年   3篇
排序方式: 共有500条查询结果,搜索用时 15 毫秒
221.
This article provides an account of the special operations in Yemen authorized by successive Conservative governments in the 1950s and early 1960s. It suggests that these were undertaken in response to a perceived threat from Yemeni irredentism and Arab nationalism. The secrecy surrounding the operations was regarded as a useful means of avoiding the international condemnation which overt military action would attract. It is argued that the case of British involvement in Yemen provides further evidence of the continued commitment of post-war British governments to the defence of empire, and that the policy of clinging on to the remains of empire in this region was based on an over-optimistic analysis of the likely impact of Arab nationalism.  相似文献   
222.
The purpose of this article is to introduce the connection of social entrepreneurship (SE) and sustainable design (SD) as a successful strategy for social innovation. Design is increasingly recognized by different stakeholders as an important contribution to social innovation. However, research linking SD and SE as a tool to sustain these social ventures is limited. This article takes an international approach to viewing SE. It presents concepts and main characteristics of both SE and SD, and discusses its similarities and differences of these concepts, based on a literature review and the analysis of two case studies addressing SE. The case studies presented in Norway and the United States are evaluated based on the role that SD strategies played in their establishment and implementation phase. Finally, this article seeks to contribute to the discussion of SE challenges and benefits, in addition to furthering research on the connection of SE and SD. Analyzing this connection means exploring uncharted paths toward sustainability and socially responsible growth.  相似文献   
223.
Begley S 《Newsweek》2002,139(10):44-51
  相似文献   
224.
On reading Primo Levi’s Holocaust memoir If This is a Man, one is immediately struck by its literary quality, and especially its generous use of Dante’s Inferno, both of which point to the more general problem of Holocaust witnessing. This paper focuses on Levi’s reasons for using Dante’s poem in particular to communicate his experience. Levi’s choice of Inferno is pointed, not only because of the obvious trope of existence in Hell, but also because Levi conceived of Auschwitz as an experiment designed to destroy the “human,” created in part, at least in the West, by Dante’s poem. What I will be suggesting is that Levi emphasizes the distinctions between his and Dante’s experiences by including in his conversation with Dante’s Inferno (paradoxically) his rejection of that conversation. There may or may not be something “human” which persists after Auschwitz, and the only way to ask this question, without preconceiving an answer, is to dramatize silence. The resultant ambiguity urges readers to, as Levi puts it, “participate in” the events described and/or dramatized.
Sharon PortnoffEmail:
  相似文献   
225.
226.
227.
USSR     
  相似文献   
228.
229.
230.
The questioned documents laboratory often encounters cases where handwriting that is to be examined intersects with some interfering factor such as a rubber stamp, typewriting or background printing. In these cases, line direction, beginning and ending features of letters and other fine details of the handwriting may be lost in the "noise" of the intersecting ink. The purpose of this paper is to show several new digital photography methods that may be used to "subtract" the effect of the intersecting ink, thereby enhancing that of the handwriting ink in order to enable the document examiner to conduct a complete examination. These methods have the advantage of being fast and do not involve the use of expensive material or equipment. Several new methods are described that may be used to separate the colors of the handwriting ink from that of the intersecting ink: the analog method and several digital methods such as RGB-HSB-CMYK, L*a*b color, and color separation using the Channel Mixer function of Adobe Photoshop. Successful application of these color separation methods to specific handwriting ink/rubber stamp ink color combinations shows that the effect of the intersecting ink may indeed be minimalized if not canceled altogether. Application of the suggested methods may well make the difference between a nonconclusive handwriting examination and a full analysis of the questioned handwriting.  相似文献   
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