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   1854篇
  免费   88篇
各国政治   135篇
工人农民   110篇
世界政治   278篇
外交国际关系   129篇
法律   949篇
中国政治   3篇
政治理论   334篇
综合类   4篇
  2023年   20篇
  2022年   16篇
  2021年   36篇
  2020年   56篇
  2019年   74篇
  2018年   105篇
  2017年   104篇
  2016年   94篇
  2015年   61篇
  2014年   77篇
  2013年   310篇
  2012年   72篇
  2011年   67篇
  2010年   40篇
  2009年   38篇
  2008年   57篇
  2007年   62篇
  2006年   65篇
  2005年   56篇
  2004年   47篇
  2003年   54篇
  2002年   44篇
  2001年   40篇
  2000年   46篇
  1999年   19篇
  1998年   23篇
  1997年   17篇
  1996年   10篇
  1995年   13篇
  1994年   17篇
  1993年   18篇
  1992年   17篇
  1991年   11篇
  1990年   9篇
  1989年   10篇
  1988年   8篇
  1987年   9篇
  1986年   7篇
  1985年   6篇
  1984年   6篇
  1983年   5篇
  1982年   16篇
  1981年   6篇
  1980年   8篇
  1979年   9篇
  1978年   10篇
  1977年   6篇
  1973年   9篇
  1971年   8篇
  1965年   5篇
排序方式: 共有1942条查询结果,搜索用时 15 毫秒
31.
Attila Tasnádi 《Public Choice》2008,134(3-4):293-305
The Hungarian mixed-member electoral system, adopted in 1989, is one of the world’s most complicated electoral systems, and, as this paper demonstrates, it suffers from the “population paradox.” In particular, the governing coalition may lose as many as 8 seats either by getting more votes or by the opposition obtaining fewer votes on each territorial list.  相似文献   
32.
33.
34.
Food production has been changing significantly in recent years as a result of climate change and of growing demand for food. This article aims to understand the link between food security and international security in the context of climate change, applying a systematic and qualitative analysis of the literature using the bibliometric method. This research observes that climate change tends to affect agricultural productivity, exposing societies to risk and the need for migration. However, good governance, together with international cooperation, can reduce the hazards of food insecurity, strengthening ties between countries and stimulating a fairer and more inclusive form of international trade.  相似文献   
35.
The Democratic Alliance of Hungarians in Romania (RMDSZ) has been the most stable actor in the Romanian party system over the past two decades. However, in this article, we argue that beyond this apparent stability, the linkages between RMDSZ and its voters have undergone a gradual, yet significant shift. The ethnic block voting of Transylvanian Hungarians was closely connected to the concept of a self-standing and parallel “Minority Society,” and to the practices of institution building that the minority elites engaged in in the early 1990s. However, since its first participation in the Romanian government in 1996, RMDSZ has gradually departed from this strategy, a phenomenon that was also closely connected to a process of elite change within the organization. The present RMDSZ leadership puts less and less emphasis on policy programs that could reinforce the institutional system of the minority; consequently, it is unable (and unwilling) to organizationally integrate the community activists of the minority society who previously had played a key role in the process of (electoral) mobilization. At the rhetorical level, RMDSZ did not abandon the goal of building a parallel Hungarian minority society, but in its linkages to the Hungarian electorate, clientelistic exchanges have become predominant.  相似文献   
36.
Although there is considerable evidence for the hypothesis that an efficient use of management techniques is the key to a good public service delivery, a lot of studies come to the conclusion that there is only partial, reluctant implementation or even a general lack of the use of such techniques by public managers. This paper examines the determinants for the use of quality management techniques in public sector organizations from six EU countries. It turns out that especially more organizational autonomy and result control appear to be of importance while, surprisingly, the combination of these variables leads to negative results.  相似文献   
37.
Although many scholars of Central and Eastern Europe politics write about the relative weaknesses of civil societies, some studies delivered evidence of cases where interest groups were able to influence particular decisions and policies. Therefore, we aimed at identifying and examining the most influential national interest groups of eight different policy areas in post-communist Hungary hoping to explore the reasons for their success. Older generations of organisations benefit from political embeddedness, while newer advocacy groups rely more on legal instruments and public mobilisation. The operation of successful groups has not been affected by the strong political polarisation of the Hungarian party system.  相似文献   
38.
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   
39.
DNA is one of the fastest growing tools in forensic sciences, increasing reliability in forensic reports and judgments. The use of DNA has increased in different areas of the forensic sciences, such as investigation of plant species, where plastid DNA has been used to elucidate and generate evidence in cases of traceability of genetically modified and controlled plants. Even with several advances and the practice of using DNA in forensic investigations, there are just few studies related to the identification of genetic tools for the characterization of drug and nondrug-types of Cannabis. Herein, the whole plastomes of two drug-type Cannabis are presented and have their structures compared with other Cannabis plastomes deposited in the GenBank, focusing in the forensic use of plastome sequences. The plastomes of Cannabis sativa “Brazuka” and of the hybrid Cannabis AK Royal Automatic presented general structure that does not differs from the reported for other C. sativa cultivars. A phylogenomic analyses grouped C. sativa “Brazuka” with the nondrug C. sativa cultivars, while the hybrid Cannabis AK Royal Automatic placed isolated, basal to this group. This suggests that the analysis of plastomes is useful toward genetic identification of hybrids in relation to C. sativa.  相似文献   
40.
Postmortem magnetic resonance imaging (MRI) is rarely used for the radiologic assessment of gunshot injuries, although it has clear advantages over postmortem computed tomography (CT) with regard to the imaging of soft tissue injuries. Another benefit in using MRI is that lodged projectiles composed of nonferromagnetic material such as lead present only marginal metal artifacts compared with severe artifacts on CT. This case report presents CT and MRI findings in a case with two gunshot wounds to the neck: a perforating wound and a nonperforating wound with a lead bullet lodged in the cervical spine. The decedent underwent CT and MRI before the scheduled autopsy. A ring of radiopaque material under the dermis in the fatty tissue was identified at both entrance wounds on CT, which was indicative of contact shots. The perforating gunshot was clearly indicated on CT by bullet fragments along the wound channel through the perforated 6th cervical vertebra and the fractured cricoid cartilage at the exit wound. The second trajectory, however, was only assumed based on the presence of gunshot residues at the entrance wound and the position of the lodged bullet. The radiologic assessment was severely impeded by the metal artifacts on CT. Barely noticeable metal artifacts on MRI allowed for clear visualization of the soft tissue injuries and the ruptured medulla oblongata. Only MRI clarified the soft tissue injuries of the brainstem noninvasively, which could provide specific and graphic information on the rapidity of death and the incapacitation of the victim.  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