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   1338篇
  免费   71篇
各国政治   79篇
工人农民   76篇
世界政治   98篇
外交国际关系   115篇
法律   735篇
中国政治   10篇
政治理论   284篇
综合类   12篇
  2023年   20篇
  2022年   27篇
  2021年   16篇
  2020年   36篇
  2019年   54篇
  2018年   51篇
  2017年   69篇
  2016年   79篇
  2015年   43篇
  2014年   62篇
  2013年   180篇
  2012年   62篇
  2011年   47篇
  2010年   42篇
  2009年   41篇
  2008年   48篇
  2007年   68篇
  2006年   48篇
  2005年   64篇
  2004年   38篇
  2003年   38篇
  2002年   44篇
  2001年   20篇
  2000年   18篇
  1999年   23篇
  1998年   13篇
  1997年   9篇
  1996年   7篇
  1995年   14篇
  1994年   10篇
  1993年   3篇
  1992年   21篇
  1991年   7篇
  1990年   7篇
  1989年   11篇
  1988年   8篇
  1987年   6篇
  1986年   7篇
  1985年   6篇
  1984年   3篇
  1983年   7篇
  1982年   4篇
  1981年   2篇
  1980年   4篇
  1975年   3篇
  1973年   2篇
  1969年   3篇
  1966年   3篇
  1962年   1篇
  1955年   1篇
排序方式: 共有1409条查询结果,搜索用时 0 毫秒
111.
The article intends to explain why although tremendous changes have occurred in the structure of government – especially the laws organizing decentralization since 1982 – the institution of the Prefect is still alive in the year 2000. Created in 1800, the institution of the Prefect derives from the will of the central authority to rely on its own representatives to ensure that public policies will be equally implemented over the whole territory. This objective remains but it has to be combined with the objectives of decentralization which are to transfer a number of responsibilities to elected bodies. Consequently, the task of the Prefect is to co-ordinate locally the action of the representatives of the ministers with the action of the elected body. To study the conditions under which the institution carries out this task the article focuses primarily on the limited capacity of the Prefect to mobilize the relevant actors. The second point concerns the difficulty of bringing together the information produced by field services. The third point considers the valuation of proximity and its impact on the action of the Prefect. The article concludes that the function of the Prefect is still the framing of local action but within the new context this can be done more often through the diffusion of information and less often through authority.  相似文献   
112.
The purpose of this paper is to measure and explain variations in productive efficiency of municipal governments in Belgium. Technical efficiency is evaluated using a non-parametric method based on the Free Disposal Hull (FDH) reference technology. We first calculate input, output, and graph Farrell efficiency measures for a cross-section of all 589 Belgian municipalities. In a second stage of the analysis we explain the calculated differences in efficiency in terms of variables related to the structural characteristics of municipalities and to the institutional environment.  相似文献   
113.
114.
115.
In the present longitudinal 3-wave study of 1274 adolescents and young adults, aged 12–24 at the 1st wave, it is examined whether youngsters from intact versus postdivorce families show long-term differences in internalizing and externalizing problems. Furthermore, possible differences in the development of this problem behavior between offspring from intact and postdivorce families are examined, i.e., possible differences in growth curves of internalizing and externalizing problems are investigated. Longitudinal multilevel analyses reveal long-term differences in internalizing and externalizing problems according to family structure. Adolescents and young adults growing up in postdivorce families display more internalizing and externalizing problem behavior than youngsters of intact families. The development of these 2 types of problem behavior does not differ by gender or family structure. That is, the shape of the growth curves of internalizing and externalizing problem behavior is similar for boys and girls and also for youngsters from intact and postdivorce families. Inge VanderValk is a Postdoc Researcher at the Department of Child and Adolescent Studies, Utrecht University, the Netherlands. She received her Ph.D. in 2004 from Utrecht University. Her major research interests include associations between adolescent adjustment and parental marital quality and parental divorce. Ed Spruijt is an Associate Professor at the University of Utrecht. He received his Ph.D. in 1983 from Utrecht University. His major research interests are the consequences of parental divorce and visitation arrangements on children. Martijn de Goede is an associate Professor at Utrecht University, Department of Methodology and Statistics. He received his Ph.D. in 1988 from Utrecht University. His major research interests are occupational and relational life courses of youngsters. Cora Maas is an Assistent Professor at Utrecht University, Department of Methodology and Statistics. She received her PH.D. in 1992 in Utrecht from Utrecht University. Her major interests are: multilevel analysis (theory and applications). Wim Meeus is full Professor of Adolescent Development at Utrecht University. He received his Ph.D. in 1984 from Utrecht University. His major research interests are personality, identity, and relationships in adolescence.  相似文献   
116.
117.
The polymorphism of nine STR loci has been studied in a sample of 598 individuals from the population of Alagoas, Northeastern Brazil. Determination of the allele frequencies as well as of several commonly used statistics in forensic and paternity testing were defined. The most polymorphic loci were TH01 and D7S317. The exact test demonstrated that the nine loci analyzed in the population have no deviation from Hardy–Weinberg equilibrium (P>0.05).  相似文献   
118.
This paper describes the analytical methodology for the determination of MDMA, MDA, MDEA and MBDB in oral fluid. After a liquid–liquid extraction, the analysis was carried out by high performance liquid chromatography (HPLC), with fluorescence detection. The detector wavelength was fixed at 285 nm for excitation and 320 nm for emission. The mobile phase, a mixture of phosphate buffer (pH = 5) and acetonitrile (75:25), and the column, Kromasil 100 C8 5 μm 250 mm × 4.6 mm, allowed good separation of the compounds in an isocratic mode in only 10 min. The method was validated and showed good limits of detection (2 ng/mL) and quantitation (10 ng/mL) for all the amphetamine derivatives. No interfering substances were detected. A stability study of these compounds in oral fluid stored at three different temperatures (−18, 4 and 20 °C) over 10 weeks was conducted, showing a time-dependent degradation of the four compounds.  相似文献   
119.
120.
Business Development Services (BDS) programmes have become big business for international donors and NGOs. Focusing on small enterprises in developing countries, the current BDS approach assumes that the development of commercial markets is the key to success. Yet many of these programmes continue to have a limited impact. A review of modern theories of innovation and services marketing management suggests that this may be because current BDS support practice reflects a rather limited understanding of how new markets actually develop. Drawing on the insights that these theories offer, the authors suggest that BDS practice should develop a more evolutionary approach, recognising that service innovations develop through active, on-going interaction between suppliers and customers. The article concludes with practical policy guidelines and a discussion about tools that could help BDS to adopt this more successful approach.  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