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   172篇
  免费   14篇
各国政治   22篇
工人农民   7篇
世界政治   7篇
外交国际关系   7篇
法律   115篇
政治理论   27篇
综合类   1篇
  2023年   3篇
  2021年   4篇
  2020年   5篇
  2019年   6篇
  2018年   8篇
  2017年   9篇
  2016年   6篇
  2015年   9篇
  2014年   7篇
  2013年   19篇
  2012年   9篇
  2011年   35篇
  2010年   3篇
  2009年   6篇
  2008年   5篇
  2007年   5篇
  2006年   9篇
  2005年   6篇
  2004年   8篇
  2003年   5篇
  2002年   6篇
  2001年   2篇
  2000年   3篇
  1998年   1篇
  1993年   1篇
  1992年   1篇
  1989年   3篇
  1983年   1篇
  1971年   1篇
排序方式: 共有186条查询结果,搜索用时 15 毫秒
1.
European Journal of Law and Economics - Epstein (Simple rules for a complex world, Harvard University Press, Cambridge, 1995) defended the superiority of simple legal rules over complex,...  相似文献   
2.
Regulatory reforms to public infrastructure services across European Union (EU) countries were aimed at increasing consumer welfare by introducing competition and choice into service markets. However, empirical evaluations have questioned whether these reforms have benefitted all consumers, suggesting that vulnerable groups of service users (especially those with lower levels of formal education), might be locked into poorly performing services. We assess the relationship between the level of competition in electricity and fixed telephony markets in EU countries and evaluate the affordability of these services for different socio‐educational layers. Our findings show that – although in countries where there is a relatively high frequency of switching, inequalities between socio‐educational groups are smaller and eventually disappear – competition as such does not play a part. These results suggest that demand‐side regulation that successfully enables consumer switching has the potential to equalize social welfare, thereby reflecting a possible convergence of regulatory instruments and the central aims of the welfare state in this context.  相似文献   
3.
Based on the evolution and institutional transformation of the Welfare State and its relationship with the Third Sector of Social Action, the present article describes and analyzes the aspects of the financial crisis and resources that the sector is currently suffering. In regards of these structural transformations the evolution, characteristics, limitations and opportunities offered by ‘civic crowdfunding’ in Spain between the years 2011 and 2015 as an innovative social practice for the increase of the own funding between the entities of the Third Sector of Social Action and the changes that must be experienced by the sector in order to optimize and improve its self-funding ratios through this mechanism are examined. The high index of success of financing social projects (96.5%) through this tool, and the annual growth during the analyzed period shows the potential of civic crowdfuding. On the other hand, the small size of the bankable projects (95.2% less than 10,000 euros), as well as the low total amount collected (2,665,384 euros) indicates that civic crowdfunding is still an insufficient mechanism to mitigate the severe public resource cuts suffered by the entities of the Third Sector of Social Action and also to bring these entities closer to the objective of self-financing. Finally, we formulated a series of recommendations aimed at improving the self-financing ratios of the Third Sector of Social Action, including a more efficient and cooperative use of civic crowdfunding.  相似文献   
4.
The regulatory regionalism approach has increasingly claimed that a new mode of regional governance is emerging globally. Regional policy regimes, developed in broad social and economic territorial areas, affect the internal transformation of the state. The authors plan to provide comprehensive empirical evidence about the emergence of worldwide regulatory regionalism by identifying how regulatory agencies have diffused very successfully within the regional level in recent decades. The paper aims to identify, using an original methodological design, the ways in which such diffusion of agencies occurred, as this may have theoretical relevance for the study of regulatory regionalism. The authors' hypothesis suggests that transnational political interactions in each regional cluster triggered agency diffusion, contributing to the development of the regulatory state within the countries of each region. To test this hypothesis, the authors employed a data set of regulatory agencies including the OECD (Organisation for Economic Co-operation and Development), and most Asian and Latin American countries (+59) from 1950 to 2007, for 15 sectors related to finance, risks, utility and competition. Bayesian data analysis was used to estimate the parameters of interest.  相似文献   
5.
6.
A qualitative and quantitative analytical method was developed and validated for the determination of 49 licit and illicit drugs in oral fluid. Small oral fluid samples, volume 1mL, were collected from volunteers using a modified Omni-Sal device and the analytes were extracted from an oral fluid/buffer mixture using a single Bond Elut Certify solid phase extraction cartridge. Liquid chromatography-tandem mass spectrometry (LC-MS-MS) and gas chromatography-repetitive full scan mass spectrometry (GC-MS) were used in parallel to analyze the extracts for the targeted drugs. Extracts were analyzed by GC-MS in their underivatized form and as their pentafluoropropionyl derivatives. Deuterated internal standards were used for quantification of drugs of abuse by LC-MS-MS to minimize matrix effects. Methadone-d(9) and tumoxetine were used as the internal standards for quantification of non-derivatized and derivatized analytes respectively by GC-MS. Linearity was demonstrated over the range 5-200 ng/mL and limits of detection were less than 4 ng/mL for each drug analyzed. The method demonstrated acceptable recoveries for most of the analytes and good intra- and inter-day precision. Acquisition of data by repetitive full scan GC-MS allows the addition of further analytes to the target menu.  相似文献   
7.
Degradation of human DNA extracted from forensic stains is, in most cases, the result of a natural process due to the exposure of the stain samples to the environment. Experiences with degraded DNA from casework samples show that every sample may exhibit different properties in this respect, and that it is difficult to systematically assess the performance of routinely used typing systems for the analysis of degraded DNA samples. Using a batch of artificially degraded DNA with an average fragment size of approx. 200 bp a collaborative exercise was carried out among 38 forensic laboratories from 17 European countries. The results were assessed according to correct allele detection, peak height and balance as well as the occurrence of artefacts. A number of common problems were identified based on these results such as strong peak imbalance in heterozygous genotypes for the larger short tandem repeat (STR) fragments after increased PCR cycle numbers, artefact signals and allelic drop-out. Based on the observations, strategies are discussed to overcome these problems. The strategies include careful balancing of the amount of template DNA and the PCR cycle numbers, the reaction volume and the amount of Taq polymerase. Furthermore, a careful evaluation of the results of the fragment analysis and of automated allele calling is necessary to identify the correct alleles and avoid artefacts.  相似文献   
8.
9.
The Covenant of Mayors (CM) is the mainstream European movement involving local authorities who voluntarily commit to increase energy efficiency and the use of renewable energy sources within their territories with the aim of reducing CO2 emissions and meet the European Union objectives by 2020. One country that has a greater number of signatories of this agreement is Spain. This article analyzes which factors influence the decision of Spanish local authorities to join the ever‐growing movement. An empirical model is formulated to describe the behavior of Spanish local governments, this being a binary choice model which is a function of various political, economic, and technical factors. Among the prominent factors that influence this decision are population, availability of renewable energy, fiscal and environmental stress, citizens’ political preference, the contagion effect of neighboring municipalities, the existence of covenant coordinators, and finally, economic motivations.  相似文献   
10.
This article addresses some of the legal implications of the popular consumer-to-consumer electronic commerce model, in particular the implications of the successful and popular auctions site eBay.  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