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   4791篇
  免费   59篇
各国政治   120篇
工人农民   237篇
世界政治   157篇
外交国际关系   121篇
法律   3676篇
中国政治   25篇
政治理论   473篇
综合类   41篇
  2021年   20篇
  2020年   34篇
  2019年   34篇
  2018年   134篇
  2017年   56篇
  2016年   152篇
  2015年   49篇
  2014年   57篇
  2013年   262篇
  2012年   209篇
  2011年   217篇
  2010年   88篇
  2009年   84篇
  2008年   118篇
  2007年   133篇
  2006年   121篇
  2005年   472篇
  2004年   222篇
  2003年   134篇
  2002年   118篇
  2001年   166篇
  2000年   135篇
  1999年   115篇
  1998年   21篇
  1993年   27篇
  1992年   75篇
  1991年   99篇
  1990年   106篇
  1989年   120篇
  1988年   116篇
  1987年   111篇
  1986年   95篇
  1985年   95篇
  1984年   76篇
  1983年   70篇
  1982年   25篇
  1981年   20篇
  1979年   38篇
  1978年   40篇
  1977年   27篇
  1976年   27篇
  1975年   40篇
  1974年   54篇
  1973年   46篇
  1972年   48篇
  1971年   48篇
  1970年   46篇
  1969年   37篇
  1968年   36篇
  1967年   22篇
排序方式: 共有4850条查询结果,搜索用时 15 毫秒
921.
An experimental field study investigated why people of higher social standing might jump to the conclusion that an injustice has occurred when an authority implements a program that benefits some constituents but not others. High-status individuals are uniquely vulnerable to downward mobility, especially in the event that a situation does not benefit them, but does benefit their high-status peers. In our study, students in a university course were asked to judge a bonus program by which the grades for some would increase and the grades for others would remain the same. Two framing conditions were used, each providing an example in which only one of two students would benefit from the program. In the peer-gets-ahead condition, the two students were of equal status before the program acted to differentiate them, and in the inferior-catches-up condition, the two students differed in status before the program acted to equate them. A majority of students responded favorably to the program, although this number was affected strongly by framing, with almost unanimous approval in the inferior-catches-up condition and comparatively modest approval in the peer-gets-ahead condition. Objections in the latter condition were most frequent among high-status students, who were implicitly uncomfortable with the possibility that their status could decrease relative to some of their high-status peers. Explicitly, their objections used the language of social injustice, especially claims of distributive unfairness. We argue that these perceptions of injustice are a cognitive manifestation of an aversion to any situation that could result in downward mobility.  相似文献   
922.

Objectives

Researchers have used repeated cross sectional observations of homicide rates and sanctions to examine the deterrent effect of the adoption and implementation of death penalty statutes. The empirical literature, however, has failed to achieve consensus. A fundamental problem is that the outcomes of counterfactual policies are not observable. Hence, the data alone cannot identify the deterrent effect of capital punishment. This paper asks how research should proceed. We seek to make transparent how assumptions shape inference.

Methods

We study the identifying power of relatively weak assumptions restricting variation in treatment response across places and time. We perform empirical analysis using state-level data in the United States in 1975 and 1977.

Results

The results are findings of partial identification that bound the deterrent effect of capital punishment. Under the weakest restrictions, there is substantial ambiguity: we cannot rule out the possibility that having a death penalty statute substantially increases or decreases homicide. This ambiguity is reduced when we impose stronger assumptions, but inferences are sensitive to the maintained restrictions.

Conclusions

Imposing certain assumptions implies that adoption of a death penalty statute increases homicide, but other assumptions imply that the death penalty deters it. Thus, society at large can draw strong conclusions only if there is a consensus favoring particular assumptions. Without such a consensus, data on sanctions and murder rates cannot settle the debate about deterrence. However, data combined with weak assumptions can bound and focus the debate.  相似文献   
923.
Incorporating the notion of sustainability is the biggest challenge for citizenship in a technological era. Existing conceptions of citizenship have not been able to grapple with compounded ecological, economic, cultural, and moral threats facing modern technology-infused societies. Nor has increased public participation, engagement, and dialogue resolved polarized positions on issues such as what constitutes quality of life or what is meant by the integrity of nature. This paper draws on the scholarship of both sustainability and citizenship to propose a framework of sustainable citizenship that seeks to emphasize shared values through a deliberated clash of ideas. Such a framework involves a negotiation of the dialectics of rights and responsibilities, state and non-state, public and private, human and non-human nature, universal and particular, and democracy and capitalism. The paper illustrates how sustainable citizenship can be applied to deal with contentious political and policy issues of new and emerging technologies.  相似文献   
924.
One revealing test for gauging the extent to which pluralist democracy has advanced in the recently (re)democratized countries of Latin America is to determine the extent to which interest groups have come to participate in policy making in formal, open, extensive, and accepted ways as they mostly do in advanced liberal democracies. In other words, is this a new era or more of the same? To provide insights into this question, using six hypotheses, this article compares social insurance reform in Argentina and Mexico, and public health reform in Colombia. It appears that the political processes through which the reforms were adopted were fairly democratic, although aspects of the old regimes in all three countries, particularly corporatist relationships, were indispensable backups. The weaknesses that were apparent, however, stem less from the old ways of doing political business and more from the immaturity of the democratic process. Plus, pressures were felt by the executive branches and their allies to show to the international community that their country was a safe place in which to invest. Copyright © 2012 John Wiley & Sons, Ltd.  相似文献   
925.
A repository of 14 PCR-loci Italian gene frequencies in the World Wide Web   总被引:1,自引:0,他引:1  
A collection of 6830 typing results produced by the Immunohematology Laboratory at the UCSC, pertaining to 11 STRs (FES/FPS, vWA31, HUMTH01, F13A1, MBP, D21S11, D7S460, D18S51, CD4, TPOX, CSF1PO) and 3 AmpFLPs (D1S80, APO-B, COL2A1), is publicly available as an electronic archive at a website.  相似文献   
926.
Allele frequencies for the six STR loci HumTHO1, TPOX, CSF1PO, vWA, FESFPS and F13AO1 were obtained from 94-120 unrelated individuals belonging to three important population groups of eastern India.  相似文献   
927.
杨紫? 《中外法学》1996,(3):16-18
<正> 财产所有权简称所有权。其客体问题是所有权理论中的一个基本问题。所有权的客体是否应该限于有形财产,这是当前需要重新探讨的一个重大问题。它直接关系到能否正确认识在建立现代企业制度过程中迫切需要解决的公司财产权和股东财产权的性质问题。笔者就此发表一些新的、不成熟的见解,欢迎批评、指正。  相似文献   
928.
Allelic frequencies for 19 STR loci (F13B, TPOX, D3S1358, FGA, CSF1PO, D5S818, F13A01, D7S820, D8S1179, D10S1237, TH01, VWA, D13S317, FESFPS, Penta E, D16S539, D18S51, D19S253, and D21S11) were obtained from an average of 13,000 unrelated Brazilian adults undergoing parentage testing. D10S1237 is a tetranucleotide repeat locus shown to be useful for forensic and paternity studies. Null allele frequencies and mutation rates were ascertained from this population sample.  相似文献   
929.
We analysed samples of 400 Finnish males using nine Y-chromosomal short tandem repeat (STR) loci (minimal haplotype); for 200 of these subjects an additional seven Y-chromosomal STR loci were used. The geographical distribution of the observed haplotypes was determined from 200 individuals of known paternal origin within Finland. The observed number of alleles varied from 2 to 13 alleles per locus. A total of 146 minimal haplotypes were identified in our population sample. Interestingly, 90 (22.5%) individuals shared an identical haplotype. This haplotype was extremely frequent in the northern and eastern subpopulations of Savo, Pohjanmaa and Karjala (53, 42 and 37%, respectively). With the seven additional loci analysed in the sample of 200 individuals, 120 haplotypes were identified, and individuals sharing the most common haplotype decreased to 13.0%. However, in comparison to other European populations, the Finnish population showed decreased genetic diversity (GD) when the number of different minimal haplotypes in the population was divided by the sample size (36.5% in Finns versus 83.7% on average). Our results strongly support the earlier hypothesis of individual isolated Y-chromosomal lineages and population substructuring in Finland. For paternity testing, power of exclusion was 92% using minimal haplotype data, but including the seven additional loci this value increased to 97%.  相似文献   
930.
Allele frequencies for 11 short tandem repeats (STRs) loci (CSF1PO, TPOX, TH01, F13A01, FESFPS, vWA, D16S539, D7S820, D13S317, F13B and LPL) were obtained from a sample of 225 unrelated individuals born in the Entre Ríos state of Argentina.  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