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   9087篇
  免费   305篇
各国政治   613篇
工人农民   364篇
世界政治   710篇
外交国际关系   379篇
法律   5240篇
中国共产党   2篇
中国政治   139篇
政治理论   1857篇
综合类   88篇
  2020年   120篇
  2019年   140篇
  2018年   200篇
  2017年   218篇
  2016年   223篇
  2015年   194篇
  2014年   200篇
  2013年   1107篇
  2012年   235篇
  2011年   316篇
  2010年   227篇
  2009年   247篇
  2008年   251篇
  2007年   229篇
  2006年   228篇
  2005年   199篇
  2004年   222篇
  2003年   240篇
  2002年   169篇
  2001年   355篇
  2000年   331篇
  1999年   293篇
  1998年   146篇
  1997年   104篇
  1996年   111篇
  1995年   99篇
  1994年   107篇
  1993年   103篇
  1992年   159篇
  1991年   156篇
  1990年   146篇
  1989年   138篇
  1988年   159篇
  1987年   156篇
  1986年   160篇
  1985年   146篇
  1984年   146篇
  1983年   155篇
  1982年   92篇
  1981年   67篇
  1980年   81篇
  1979年   98篇
  1978年   78篇
  1977年   66篇
  1976年   68篇
  1975年   58篇
  1974年   49篇
  1972年   53篇
  1971年   54篇
  1969年   54篇
排序方式: 共有9392条查询结果,搜索用时 15 毫秒
311.
In 2005 Indonesian and European institutes joined to start the first step for the implementation of an Ocean Operational System in the Indonesian archipelago. The system will support the decision making process for the sustainable use of marine resources, providing useful information and added value products as well as a service for an improved management of the sea with high business impact to targeted groups as public authorities and commercial operators (coastal managers, fishermen, shipping companies). In this paper the System is shortly described with its potential benefits and economic and social impacts.
A. Ribotti (Corresponding author)Email:
R. Sorgente
A. Hanggono
G. M. R. Manzella
N. Hendiarti
L. Fusco
T. R. Adi
Y. S. Djajadihardja
A. R. Farhan
M. C. G. Frederik
W. F. Ma’ruf
B. Realino
V. Rupolo
P. Ruti
M. Sadly
F. Syamsudin
B. A. Subki
  相似文献   
312.
Visas and work permits: Possible global negotiating initiatives   总被引:1,自引:0,他引:1  
We discuss global options for initiatives intended to ameliorate adverse impacts of visa and work permit systems used by national governments around the world. We first describe and document some of their effects, noting the relative lack of other research work on these issues. We then discuss proposals for a new and supplemental global visa structure which have been made as part of the Mode 4 GATS negotiations in the WTO, suggesting that the GATS/WTO may be an imperfect institutional location for negotiating on these matters. We then evaluate other approaches, including what realistically could be possible if a new body specifically created for global negotiation in the area were to be used.
John WhalleyEmail:
  相似文献   
313.
314.
315.
This paper provides the first empirical study of delegate voting behavior on issues of slavery at the U.S. Constitutional Convention. We analyze two categories of votes: those related to apportionment and those related to the regulation of the slave trade. Although it is widely believed that delegates voted consistent with the interests of their states on issues of slavery, we find that for votes on apportionment, the effect of state interests was enhanced by both the delegate’s personal interest and his religious background. For votes regulating the slave trade, state interests had a significant effect but only within specific regions.  相似文献   
316.
This paper analyzes 12 recent within‐study comparisons contrasting causal estimates from a randomized experiment with those from an observational study sharing the same treatment group. The aim is to test whether different causal estimates result when a counterfactual group is formed, either with or without random assignment, and when statistical adjustments for selection are made in the group from which random assignment is absent. We identify three studies comparing experiments and regression‐discontinuity (RD) studies. They produce quite comparable causal estimates at points around the RD cutoff. We identify three other studies where the quasi‐experiment involves careful intact group matching on the pretest. Despite the logical possibility of hidden bias in this instance, all three cases also reproduce their experimental estimates, especially if the match is geographically local. We then identify two studies where the treatment and nonrandomized comparison groups manifestly differ at pretest but where the selection process into treatment is completely or very plausibly known. Here too, experimental results are recreated. Two of the remaining studies result in correspondent experimental and nonexperimental results under some circumstances but not others, while two others produce different experimental and nonexperimental estimates, though in each case the observational study was poorly designed and analyzed. Such evidence is more promising than what was achieved in past within‐study comparisons, most involving job training. Reasons for this difference are discussed. © 2008 by the Association for Public Policy Analysis and Management.  相似文献   
317.
This paper investigates China's economic growth potentials and limitation up to 2020 and recommends a trend of economic regionalization. A sustainable growing economy is a necessity for China's future stability. The growth sustainability of the Chinese economy depends essentially on its continued commitments to institutional reform and economic deregulation. China's relaxation of government intervention in economic activities has led and will be leading China to decentralize its central governmental authority over economic planning and control. This will consequently stimulate the emergence of regional economies in Mainland China. In the next two decades, there will likely be 10 regional economies with relatively independent industrial structures emerging in Greater China (or the Chinese Economic Area of Hong Kong, Macao, Taiwan and the Mainland) as a result of economic liberalization and decentralization.  相似文献   
318.
319.
The recent questions about the viability of political realism highlight a need for alternative theoretical frameworks to guide international relations research. These alternatives, however, have been slow to emerge, due in part to the field's traditional neglect of political theory. In this essay I present an alternative based on a survey of Paine's international thought. Sir Michael Howard referred to Paine as the most important internationalist writer of all time, but his contributions have been largely ignored by students of international relations. Paine was a classic second image theorist who first posited how democratic governance would promote a peaceful world. Paine's works leave us with all the features of cosmopolitan thinking in international relations: Faith in reason and progress, the evils of authoritarian regimes, the democratic peace, the peaceful effect of trade, nonprovocative defense policies, open diplomacy, obsolescence of conquest, the universal respect for human rights, and the democratic propensity to engage in messianic interventionism. I conclude with a comparison of Kant and Paine where I argue that Paine is the more faithful representative of the Enlightenment for students of international relations.  相似文献   
320.
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