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   8218篇
  免费   3篇
各国政治   204篇
工人农民   1069篇
世界政治   168篇
外交国际关系   280篇
法律   4655篇
中国政治   1篇
政治理论   1843篇
综合类   1篇
  2022年   2篇
  2020年   2篇
  2018年   1271篇
  2017年   1198篇
  2016年   1009篇
  2015年   57篇
  2014年   13篇
  2013年   25篇
  2012年   183篇
  2011年   913篇
  2010年   1012篇
  2009年   578篇
  2008年   730篇
  2007年   686篇
  2006年   3篇
  2005年   58篇
  2004年   167篇
  2003年   140篇
  2002年   27篇
  2001年   1篇
  2000年   4篇
  1999年   1篇
  1998年   9篇
  1997年   12篇
  1996年   19篇
  1995年   28篇
  1994年   23篇
  1993年   1篇
  1989年   1篇
  1988年   1篇
  1985年   1篇
  1984年   11篇
  1983年   8篇
  1982年   5篇
  1979年   6篇
  1978年   7篇
  1977年   9篇
排序方式: 共有8221条查询结果,搜索用时 15 毫秒
701.
702.
Using an incomplete contract framework, we analyse new forms of regulation and private participation in public services. This paper explains contractual efficiency in the absence of financially guaranteed investments in public private partnerships. The example of a number of African countries underlines how a series of national, normative law reforms can give rise to innovations in approaches to regulation. This new hybrid form of regulation, inspired by a French regulation approach combining commission regulation and franchise bidding, could be more effective than previous approaches to regulation, in the sense of being more stable and more closely aligned with stakeholder expectations. This approach to regulation would appear to be more efficient economically, while integrating the objectives of solidarity tariffs and social water access connections. Based on these analyses, our results show (1) the impact on the robustness of new lease contracts on financing constraints, and (2) the advantages of Asset Owner Companies that reconcile explicit commitments and special purposes. We demonstrate that this achieves optimum efficiency by encouraging parties to determine jointly the optimal level of costs and investment. In addition, the mechanism fosters discussion about the possibility of institutionalizing Asset Owner Companies by predetermining the distribution of risk in lease contracts.  相似文献   
703.
Many social scientists, especially those interested in social justice, have bemoaned the election of Donald Trump as president of the USA and have decried similar right-wing victories around the globe. We wish our research would have more of an impact. I argue that if we want our conclusions to have more application outside academia, we must first put our own house in order. As illustrated by a personal narrative, we are guilty of the sexism that we decry in others, although we can see that with clarity only in hindsight. Connected to our sexism are some epistemological shortcomings: our false insistence on the primacy of basic research and our false claim to conduct “value-free” research.  相似文献   
704.
705.
706.
Der Beitrag befasst sich mit der Entwicklung, der Lage und den möglichen Veränderungen des deutschen Föderalismus im Hinblick auf das Umweltrecht. Die bisher in der Kommission zur Modernisierung der bundesstaatlichen Ordnung geäußerten Vorschläge können nur teilweise überzeugen. Zu empfehlen ist insbesondere ein einheitlicher Kompetenztitel des Bundes für den Umweltschutz im Bereich der konkurrierenden Gesetzgebung. Allgemein sollten die Rahmengesetzgebung und die Grundsatzgesetzgebung ebenso entfallen wie die Möglichkeit des Bundes, gemäß Art. 84 Abs. 1 GG künftig weiter die Einrichtung und das Verwaltungsverfahren der Landesbehörden zu regeln. Im Übrigen erscheint die Beteiligung der Länder an der europäischen Gesetzgebung reformbedürftig. * Frau Christina Hakel sowie Herrn Volker Ochsenfahrt, Berlin, danke ich für die wertvolle Mitarbeit.  相似文献   
707.
All countries are eager to attract as much foreign direct investments (FDI) as possible. At the same time FDI may have not only positive, but also negative economic effects for receiving countries. Positive effects are associated with technology transfer, efficient allocation of resources, and training of domestic workers. However, the entry of foreign firms could, e.g., lead to a decrease of labor productivity at domestic firms, which is a negative effect. The main purpose of this paper is to estimate direct and indirect effects of FDI. First, we test for direct influence of foreign direct investments on firms’ performance, where the latter is estimated alternatively as labor productivity and as exports. FDI notably increases both labor productivity and export volumes. Second, we look for spillover or indirect effects. There is statistical evidence that the levels of FDI in certain regional industries are associated with higher performance indicators of firms’ not receiving FDI in those same regional industries.  相似文献   
708.
709.
710.
This article describes the impetus for a research project conducted during 2002–2003 into our law students' experiences of undertaking a dissertation module. It also discusses the rationale for the particular methodology and approach we have used to conduct this research, and presents the results. A driving force behind this research project was not only the desire to obtain knowledge for its own sake but also the need to identify and enhance positive aspects of students' experience of this module. We decided to adopt a student led and experiential method of carrying out our research that focuses directly upon the students' lived-experience of engaging in dissertation writing. The rationale for this decision was our acknowledgement that, within the last decade, students are increasingly defining themselves as consumers of educational services and have a legitimate and indeed pivotal role in quality assurance strategies. We also recognised that adopting an experiential method of inquiry, informed by a phenomenological approach, should, in principle, help to empower students by acknowledging their autonomy and encouraging them to engage in critical reflection. Finally, applying this methodology would provide us with precisely the subjectively rich type of research data derived from the students' lived-experience that we sought. This revised version was published online in July 2006 with corrections to the Cover Date.  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