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   271篇
  免费   42篇
  2023年   1篇
  2019年   3篇
  2018年   10篇
  2017年   20篇
  2016年   18篇
  2015年   1篇
  2014年   14篇
  2013年   48篇
  2012年   42篇
  2011年   48篇
  2010年   31篇
  2009年   2篇
  2008年   2篇
  2006年   7篇
  2005年   5篇
  2004年   6篇
  2003年   4篇
  2002年   5篇
  2001年   1篇
  2000年   1篇
  1999年   1篇
  1998年   4篇
  1997年   4篇
  1996年   7篇
  1995年   5篇
  1994年   7篇
  1993年   7篇
  1992年   3篇
  1988年   1篇
  1982年   1篇
  1981年   1篇
  1980年   1篇
  1979年   1篇
  1978年   1篇
排序方式: 共有313条查询结果,搜索用时 15 毫秒
51.
Scholars have shown that media framing has a powerful effect on citizen perception and policy debates. Research has provided less insight into the ability of marginalized actors to promote their preferred frames in the media in a dynamic political context. The efforts of an exiled Iranian opposition group to get its name removed from official terror lists in the United States, United Kingdom, and EU provides a valuable platform to examine this problem. Using content analysis, I explore how the group promoted its frames in the opinion sections of major world news publications over nine years (2003–2012). I then examine the extent to which journalists aligned to its frames, as opposed to rival official frames, over time in the larger arena of news. The results support research showing that by nurturing small opportunities, marginalized political actors can expand media capacity and influence, but these effects are mediated at least in part by critical or focusing events that make rival frames less salient. The study sheds light on the complex relationship between activists, the government, and the media. It has implications for the ability of marginalized political actors to get their frames into public discourse. It also has implications for terror tagging and media coverage of other controversial issues.  相似文献   
52.
53.
ABSTRACT

We integrate functional weed ecology with crop stable carbon and nitrogen isotope analysis to assess their combined potential for inferring arable land management practices in (semi-)arid regions from archaeobotanical assemblages. Weed and GIS survey of 60 cereal and pulse fields in Morocco are combined with crop sampling for stable isotope analysis to frame assessment of agricultural labour intensity in terms of manuring, irrigation, tillage and hand-weeding. Under low management intensity weed variation primarily reflects geographical differences, whereas under high management intensity fields in disparate regions have similar weed flora. Manured and irrigated oasis barley fields are clearly discriminated from less intensively manured rain-fed barley terraces in southern Morocco; when fields in northern and southern Morocco are considered together, climatic differences are superimposed on the agronomic intensity gradient. Barley δ13C and δ15N values clearly distinguish among the Moroccan regimes. An integrated approach combines crop isotope values with weed ecological discrimination of low- and high-intensity regimes across multiple studies (in southern Morocco and southern Europe). Analysis of archaeobotanical samples from EBA Tell Brak, Syria suggests that this early city was sustained through extensive (low-intensity, large-scale) cereal farming.  相似文献   
54.
This article investigates the determinants of political cleavages composing the structure of political attitudes in Jordan, Tunisia, and Yemen following the Arab Spring. Further, it tests whether political cleavages carry predictive weight on ordinary citizens’ electoral choices in general elections. Using the Sixth Wave of the World Values Survey, discriminant analysis was conducted to generate the dimensionality, type, and structure of political attitudes in the three nations. Findings suggest that the structure of political attitudes in Jordan, Tunisia, and Yemen is multidimensional: the Islamic‐Secular division, a conflict along economic policy visions and an emerging divisive dimension concerning political reform. Evidence indicates that political cleavages do not possess significant predictive power in determining voters’ choice at elections booths. This research also points to the significance of social transformation processes such as modernization and globalization in causing a shift in values among ordinary citizens in the Arab World. This research argues that in countries where the effects of modernization and globalization are higher, a weakening of the Islamic‐Secular division is witnessed. This research is important since it paves the way for further empirical analysis on political ideology in the Middle East. It shatters conjectures concluding that Arab polities are only divided by a single hierarchical dimension: Islamic‐Secular. It contributes to comparative research on the dimensionality of political ideology by showing that the Arab World is similar to the industrialized world in the dimensionality, nature, and structuration of political ideology.  相似文献   
55.
56.
Book reviewed in this article: The Kuwait Petroleum Corporation and the Economics of the New World Order: Mary Ann Tétreault The Iraqi Aggression Against Kuwait: Strategic Lessons and Implications for Europe: Wolfgang F. Danspeckgruber and Charles R. H. Tripp, editors  相似文献   
57.
58.
59.
In September 2014, the University of New England (UNE), Australia, began a three‐year programme of archaeological fieldwork and post‐excavation analyses focused on the site of Saruq al‐Hadid. In this paper, we present the initial results of our current field and laboratory research particularly related to site stratigraphy and formation processes, relative and absolute chronology, and the preliminary results of various programmes of post‐excavation analyses including archaeobotanical, zooarchaeological, ceramic and archaeometallurgical studies. These studies provide new data to build into the archaeological understanding of Saruq al‐Hadid that has, to date, focused largely on intensive excavation.  相似文献   
60.
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