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   1183篇
  免费   97篇
各国政治   123篇
工人农民   77篇
世界政治   140篇
外交国际关系   67篇
法律   671篇
中国政治   2篇
政治理论   200篇
  2024年   1篇
  2023年   21篇
  2022年   8篇
  2021年   29篇
  2020年   38篇
  2019年   47篇
  2018年   80篇
  2017年   105篇
  2016年   76篇
  2015年   62篇
  2014年   68篇
  2013年   195篇
  2012年   56篇
  2011年   48篇
  2010年   18篇
  2009年   20篇
  2008年   41篇
  2007年   39篇
  2006年   37篇
  2005年   43篇
  2004年   43篇
  2003年   47篇
  2002年   34篇
  2001年   22篇
  2000年   18篇
  1999年   11篇
  1998年   5篇
  1997年   6篇
  1996年   5篇
  1995年   5篇
  1994年   5篇
  1993年   5篇
  1992年   5篇
  1991年   5篇
  1990年   2篇
  1989年   3篇
  1988年   5篇
  1987年   1篇
  1984年   2篇
  1983年   4篇
  1979年   2篇
  1978年   1篇
  1976年   1篇
  1973年   1篇
  1972年   2篇
  1968年   2篇
  1967年   4篇
  1966年   1篇
  1964年   1篇
排序方式: 共有1280条查询结果,搜索用时 15 毫秒
201.

This article focuses on the measurement of embodied technological change. It develops the core-machinery approach to capital measurement, which is based on an engineering perspective on technological change. Using technical characteristics of different types of machinery, technical progress in the capital stock can be decomposed into incremental innovation in existing machinery and radical shifts to new technologies. The usefulness of this approach is illustrated by an analysis of embodied technological change in the Indonesian spinning and weaving industries. The core-machinery measure is compared with more traditional measures of the capital stock which are based on price information. Strengths, weaknesses and relevance of the new measure are discussed.  相似文献   
202.
In the past, improvements in craniofacial reconstructions (CFR) methodology languished due to the lack of adequate 3D databases that were sufficiently large and appropriate for 3‐dimensional shape statistics. In our study, we created the “FACE‐R” database from CT records and 3D surface scans of 400 clinical patients from Hungary, providing a significantly larger sample that was available before. The uniqueness of our database is linking of two data types that makes possible to investigate the bone and skin surface of the same individual, in upright position, thus eliminating many of the gravitational effects on the face during CT scanning. We performed a preliminary geometric morphometric (GMM) study using 3D data that produces a general idea of skull and face shape correlations. The vertical position of the tip of the (soft) nose for a skull and landmarks such as rhinion need to be taken into account. Likewise, the anterior nasal spine appears to exert some influence in this regard.  相似文献   
203.
204.
205.
206.
Using a data set that covers all Portuguese mainland municipalities for the period 1979–2005, this study performs an empirical analysis of the economic determinants of mayors’ decisions to run for another term in office. The literature on the subject is mainly centered on the United States and, as far as we know, there are no papers addressing the economic factors influencing those choices. Probit panel estimations show that local economic conditions matter more than the national or regional economic environment. The results also confirm that political variables are important and that they influence the likelihood of seeking reelection in much the same way as they affect vote and popularity functions.  相似文献   
207.
The article tests the argument that group–membership relations vary between public interest groups and other types of groups. While public interest groups draw their members from diffuse constituencies supporting the causes of the groups, sectional groups exhibit a closer correspondence between the interests advanced and the members recruited. According to the literature, differences can therefore be expected both in the patterns of membership recruitment and in the degree of membership influence in groups. The analysis draws on a survey of all national interest groups in Denmark. It demonstrates that public interest groups differ from other groups in their patterns of membership recruitment. However, it finds no tendency for public interest groups to be either less or more democratic than the average group.  相似文献   
208.
209.
Turkey is often perceived as a country with low bureaucratic capacity and prone to political manipulation and ‘pork-barrel’. This article tests whether this is the case, by analysing the extent to which politics, rather than equity and efficiency criteria, have determined the geographical allocation of public investment across the 81 provinces of Turkey between 2005 and 2012. The results show that although the Turkish government has indeed channelled public expenditures to reward its core constituencies, socioeconomic factors remained the most relevant predictors of investment. Moreover, in contrast to official regional development policy principles, we uncover the concentration of public investment in areas with comparatively higher levels of development. We interpret this as the state bureaucracy’s intentional strategy of focussing on efficiency by concentrating resources on ‘the better off among the most in need’.  相似文献   
210.
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