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   389篇
  免费   25篇
各国政治   39篇
工人农民   11篇
世界政治   53篇
外交国际关系   20篇
法律   178篇
中国政治   7篇
政治理论   106篇
  2023年   9篇
  2022年   8篇
  2021年   12篇
  2020年   7篇
  2019年   22篇
  2018年   19篇
  2017年   20篇
  2016年   22篇
  2015年   8篇
  2014年   23篇
  2013年   67篇
  2012年   19篇
  2011年   17篇
  2010年   6篇
  2009年   8篇
  2008年   10篇
  2007年   9篇
  2006年   9篇
  2005年   19篇
  2004年   17篇
  2003年   19篇
  2002年   19篇
  2001年   9篇
  2000年   7篇
  1999年   5篇
  1998年   4篇
  1996年   2篇
  1995年   2篇
  1994年   4篇
  1993年   2篇
  1992年   2篇
  1991年   1篇
  1990年   1篇
  1989年   1篇
  1988年   1篇
  1985年   1篇
  1984年   1篇
  1981年   1篇
  1972年   1篇
排序方式: 共有414条查询结果,搜索用时 156 毫秒
251.
252.
253.
This paper investigates the food security and nutritional status of formerly displaced households (HHs). Using the 2006 Core Welfare Indicator Survey for Burundi we compare their food intake and their level of expenses with that of their non-displaced neighbours. We test whether it is the duration of displacement that matters for current food security and nutritional status or the time lapsed since returning home. We use log-linear as well as propensity score matching and an instrumental variable-approach to control for self-selection bias. We find that the individuals and HHs who returned home just before the time of the survey are worse off compared to those who returned several years earlier. On average, the formerly displaced have 5 per cent lower food expenses and 6 per cent lower calorie intake. Moreover, we find evidence in favour of duration of displacement as the main mechanisms through which displacement affects HH welfare. Results are robust after controlling for self-selection bias. Despite international, government and NGO assistance, the welfare of recent returnees is lagging seriously behind in comparison with the local non-displaced populations.  相似文献   
254.
This paper deals with the ways in which jurists and law professors applied transnational systems of public law, in particular US constitutionalism and French droit administratif, in their approaches to the state building process in late nineteenth century Argentina. In covering these movements of adaptation of a nascent legal culture to changing ideological and political circumstances, this article attempts to illuminate the strong links between the process of institutionalization of certain academic disciplines or forms of social knowledge, and modern state building in Latin America.  相似文献   
255.
256.
Nineteen Y-specific short tandem repeat (STR) loci have been amplified in 768 samples from the Iberian Peninsula in order to evaluate their usefulness in forensic casework. Two previously published multiplex reactions by Thomas et al. [Hum. Genet. 6 (1999) 577] (MS1, modified here: DYS19, DYS388, DYS390, DYS391, DYS392 and DYS393) and by Ayub et al. [Nucl. Acids Res. 28 (2000) e8] (CTS: DYS434, DYS435, DYS436, DYS437, DYS438 and DYS439) plus a novel one reported here (EBF: DYS385, DYS389, DYS460, DYS461, DYS462 and amelogenin) have been used. DYS385, DYS439 and DYS391 were the most informative loci with allele diversities of 0.7997, 0.6683 and 0.5940, respectively. A total of 635 different haplotypes were observed, of which 573 (90.24%) were found in single individuals. The overall haplotype diversity was 0.9988 and that obtained by each multiplex system was 0.9812 for EBF, 0.9292 for MS1 and 0.9089 for CTS.  相似文献   
257.
Population frequencies for the eight Y-STR loci included in the "minimal haplotype" from Y-STR Haplotype Reference Database (YHRD) plus other eight Y-STRs (DYS434, DYS435, DYS436, DYS437, DYS438, DYS439, GATA H4 and GATA A10) were obtained for a sample of 133 males from four main geographical areas in the Pyrenees (Spain): Vall D'Aran (Lérida), Cerdanya (Gerona), Alt Urgell (Lérida) and Jacetania (Huesca). Haplotype diversities were estimated in the four populations.  相似文献   
258.
Asia Europe Journal - Climate change has been socially constructed crisscrossed by public and private interests, asymmetries and world-view conflicts. When it comes to the legitimacy of norms to...  相似文献   
259.
This paper is dedicated to the study of governances adopted by fuel distributors in their transactions with gas station retailers in the State of Sgo Paulo. With the deregulation of the market, plural forms were allowed and have been a recurring presence. The main aim of the paper is to investigate why these plural forms have remained on the market The main hypothesis of this paper is that the plural forms found are transitory, not as a result of increased efficiency and reduced transaction costs, but because plural forms have become a key strategic step in securing business partners and promoting greater growth of the firm. Moreover, it is argued that the institutional environment has a significant influence on the coordination of plural forms, directly interfering with their stability. The research method was qualitative research with a group of 25 distribution companies which account for about 80% of sales of ethanol and gasoline in the domestic market.  相似文献   
260.
Serve the People     
正In late 2020,the Chinese Government announced that its goal to eliminate extreme poverty had been met. At the start of the targeted poverty alleviation program back in 2013, under 100 million people were identified as living below the poverty line;seven years later,that number dropped to zero.  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