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   1933篇
  免费   35篇
各国政治   107篇
工人农民   93篇
世界政治   124篇
外交国际关系   102篇
法律   1173篇
中国共产党   1篇
中国政治   14篇
政治理论   349篇
综合类   5篇
  2023年   15篇
  2022年   11篇
  2021年   8篇
  2020年   38篇
  2019年   44篇
  2018年   50篇
  2017年   42篇
  2016年   44篇
  2015年   78篇
  2014年   75篇
  2013年   347篇
  2012年   97篇
  2011年   87篇
  2010年   101篇
  2009年   92篇
  2008年   82篇
  2007年   100篇
  2006年   95篇
  2005年   92篇
  2004年   73篇
  2003年   29篇
  2002年   45篇
  2001年   93篇
  2000年   14篇
  1999年   8篇
  1998年   7篇
  1997年   10篇
  1996年   11篇
  1995年   9篇
  1994年   8篇
  1993年   6篇
  1992年   11篇
  1991年   5篇
  1990年   3篇
  1989年   12篇
  1988年   7篇
  1987年   12篇
  1986年   15篇
  1985年   12篇
  1984年   9篇
  1983年   3篇
  1982年   13篇
  1981年   8篇
  1980年   9篇
  1979年   8篇
  1978年   8篇
  1977年   7篇
  1975年   4篇
  1967年   3篇
  1943年   2篇
排序方式: 共有1968条查询结果,搜索用时 31 毫秒
61.
62.
63.
64.
In the present article, I propose to determine reform capacity based upon policy outcomes and the governing performance of executives. Both components shall be measured through expert assessments and quantitative data for the 30 OECD member states in order to construct an index of reform capacity. The concepts underpinning the index are explained and compared with existing approaches of performance and governance measurement. Criteria are developed to assess the strategic capacity of governments and the accountability-generating functions of political actors surrounding the government. The envisaged measurement and aggregation methods are described and the potential of the proposed approach is discussed.  相似文献   
65.
The pessimistic scenario for ‘women in information communications technology’ and for ‘women in technology’ generally is even more paradoxical and insidious with respect to ‘women in computing’. Studies within this field not only report insignificant improvement in the proportion of women in Western countries’ computing fields but also alert us of a declining trend. Moreover, that decline has been accompanied – or even preceded – by years of research and programs that have specifically focused on increasing women’s participation in computing; however, they have not had the expected effect. More surprisingly, there has been a significant increase in the representation of women in all other science-related fields and professions. Our aim is to provide some clues to fight the feeling of inexorability that may be entailed by the research on women in computing. We will argue that part of the problem is related to the static nature of the research deployed around the problem of ‘women in computing’, primarily, the research constructed around the ‘leaky pipeline’ metaphor. We provide a synthesis of the critiques this research has received in recent decades and highlight research trends that render other landscapes visible when studying ‘women in computing’. These trends help us question how we are conducting research within this field and urge us to problematise assumptions about computing and gender that we may paradoxically continue to reproduce even while denouncing the paucity of women in computing and studying the reasons for this state of affairs. In short, we present the need for different researchers’ eyes that allow different landscapes of women and computing to be seen and produced.  相似文献   
66.
International Journal for the Semiotics of Law - Revue internationale de Sémiotique juridique - The aim of this article is to critically reflect on the Polish transformation taking place in...  相似文献   
67.
Ammonium nitrate fuel oil is an explosive mixture found in most antipersonnel landmines (APL) buried throughout the Colombian territory. During more than 50 years of internal conflict, the Colombian government has found that trained dogs are the most effective method to detect APL. However, the olfactive signature in ANFO is unknown and also if there are differences in detection related to the explosive manufacturing origin. Therefore, this work begins with the analytical validation of the method used to determine ammonia, in its derivatized form as carbamate, released by home-made ANFO using HS-SPME-GC-FID. Once validated, the method was used to identify ammonia and other organic volatile compounds present in ANFO, under laboratory and simulated field conditions. The validation process includes the evaluation of the optimum conditions for the derivation and extraction of butylcarbamate, the determination of the working ranges with linear response in FID, the limits of detection and quantification, the sensitivity, and the precision. The results of the validation established linearity and sensitivity in a concentration between 20 and 120 mg/L, as well as low limits of detection and quantification of 6.4 and 21.4 mg/L, respectively. Also, an intermediate precision of 11% for butylcarbamate with a repeatability of 8%. The validated method showed in real samples of home-made ANFO besides ammonia, the presence of low molecular methylamines, and also exhibited differences in volatile compositions according to the origin. The objective of this work is to offer a reliable analytical methodology for the extraction and analysis of volatile compounds from ANFO.  相似文献   
68.
69.
70.
Advertisers shy away from using non-traditional (vs. traditional) male gender portrayals even though theory suggests they may be more effective cross-nationally. Two main hypotheses were tested cross-nationally for the first time. H1: ‘paternalistic’ male stereotypes (e.g. Househusband) would be more effective than ‘envious’ male stereotypes (e.g. Businessman) across countries confirming the stereotype content model (SCM). H2: the match between initial male gender role attitudes and advertisement type would increase advertisement effectiveness only in countries with relatively low egalitarian norms (i.e. Poland and South Africa). A cross-national study was conducted through the use of student samples following a 3(country: United Kingdom, Poland and South Africa) × 2(advertisement type) × (gender attitude) mixed design (N = 373). A three-way multivariate analysis of variance showed support for H1 and partial support for H2 (i.e. the second hypothesis held on purchase intent and for South Africa). The study provides evidence for the cross-national applicability of the SCM to advertising and the limited predictive value of gender attitudes for purchase intent depending on country. Thus, contrary to mainstream advertising practices, breaking male gender stereotypes does appear to pay cross-nationally. Theoretical and practical implications alongside the potential for change in practices are discussed.  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