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   11360篇
  免费   606篇
各国政治   474篇
工人农民   389篇
世界政治   888篇
外交国际关系   370篇
法律   7458篇
中国共产党   1篇
中国政治   67篇
政治理论   2268篇
综合类   51篇
  2021年   65篇
  2020年   206篇
  2019年   251篇
  2018年   263篇
  2017年   319篇
  2016年   314篇
  2015年   267篇
  2014年   301篇
  2013年   1114篇
  2012年   265篇
  2011年   322篇
  2010年   307篇
  2009年   325篇
  2008年   311篇
  2007年   291篇
  2006年   295篇
  2005年   267篇
  2004年   271篇
  2003年   253篇
  2002年   264篇
  2001年   476篇
  2000年   448篇
  1999年   312篇
  1998年   195篇
  1997年   169篇
  1996年   136篇
  1995年   131篇
  1994年   155篇
  1993年   144篇
  1992年   208篇
  1991年   227篇
  1990年   215篇
  1989年   222篇
  1988年   216篇
  1987年   213篇
  1986年   244篇
  1985年   218篇
  1984年   174篇
  1983年   182篇
  1982年   124篇
  1981年   129篇
  1980年   94篇
  1979年   140篇
  1978年   81篇
  1977年   81篇
  1976年   73篇
  1974年   80篇
  1973年   71篇
  1972年   67篇
  1970年   49篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
291.
Democratization reduces the risk of war, but uneven transitions toward democracy can increase the probability of war. Using country-level data on democratization and international war from the period 1875–1996, we develop a general additive statistical model reassessing this claim in light of temporal and spatial dependence. We also develop a new geopolitical database of contiguities and demonstrate new statistical techniques for probing the extent of spatial clustering and its impact on the relationship between democratization and war. Our findings reaffirm that democratization generally does reduce the risk of war, but that large swings back and forth between democracy and autocracy can increase war proneness. We show that the historical context of peace diminishes the risk of war, while a regional context plagued by conflict greatly magnifies it.  相似文献   
292.
Technology‐based economic development programs have become a salient feature of the state policy landscape since the 1980s. While much research exists on the topic, little attention has been given to the processes of policy formation. State programs have moved towards high technology areas emphasized at the federal level over the past decades, and nanotechnology became one of the latest targets. This paper examines the eight‐year process through which Pennsylvania adopted a “state‐wide strategy,” culminating in the Pennsylvania Initiative for Nanotechnology. In this process, programs that responded to the interests of multiple agents came first, and a state policy was formulated after the fact. This pattern of “rationalized policy formation,” as opposed to rational policy formation, may be more common than suspected. Its strengths and weaknesses in this Pennsylvania case are discussed.  相似文献   
293.
This paper examines whether foreign direct investment (FDI) influences confidence in commercial contracts in developing countries. While the research on how host countries’ policy environments encourage FDI inflows has flourished, scholars have paid less attention to how the policy environment and local actors’ beliefs might, in turn, be affected by FDI. This is surprising because multinational enterprises are well‐recognized political and economic actors across the world. We expect that their increasing economic salience will influence the policy environments in which they function. By employing an innovative measure of property rights protection – contract‐intensive money – we examine how foreign direct investment influences host countries’ contract‐intensive money ratio in a large panel time series of both developed and developing countries from 1980 to 2002. Our analysis suggests that higher levels of FDI inflows are associated with greater confidence in commercial contracts and, by extension, the protection of property rights in developing countries.  相似文献   
294.
Frontal sinuses of Japanese skulls were radiographically examined from the view point of identifying individuals. The system of classification of sinus was proposed, basing on the area size, the bilateral asymmetry, the superiority of side, the outline of upper borders, the partial septa and the supraorbital cells. Frontal sinus patterns could be divided into above 20,000 possible combinations by combining the class numbers in each classification item described above. The frontal sinus pattern of a given person was formulated as a code number which was determined by arranging the class numbers in each classification item as serial numbers. This identification system by the frontal sinus pattern should allow one to characterize each person. The application of this identification system to an actual criminal case was also described.  相似文献   
295.
Abstract

The current study surveyed a random sample of Texas law enforcement officers (n?=?109) about their knowledge regarding behaviors indicative of deception. The officers were not highly knowledgeable about this topic, overall performing at a chance level in assessing how various behavioral cues relate to deception. Confidence in one's skill was unrelated to accuracy, and officers who reported receiving the most training and utilizing these skills more often were more confident but no more accurate in their knowledge of the behaviors that typically betray deception. The authors compare these results to previous studies that have examined officers’ beliefs in other countries and discuss the implication of these results in terms of developing future training programs that may debunk the common misconceptions that officers possess.  相似文献   
296.
This article addresses the question of how states can best promote citizens' compliance with laws that regulate livelihoods. Based on ethnographic data from fishing communities in three countries—Norway, Canada, and South Africa—the article compares compliance motivations that exist under different socioeconomic and political conditions. The comparisons give rise to a typology of three compliance motivations: deterrence, moral support for the law's content, and the legislator's authority. This article then identifies three governable preconditions—enforcement, empowerment of citizens, and civic identity—that respectively explain these motivations. The article argues that the compliance discourse in a given type of state must be framed such that it includes at least the governable preconditions for compliance that have not been met in that state. Consequently, a functional compliance strategy would vary between different state types. The article thus questions the transferability of the developed world's compliance discourses to the developing world.  相似文献   
297.
298.
299.
We examine the association between calorie-based indicators and experiential indicators of food security using data from slum households of Kolkata surveyed in 2010–2011. Experiential indicator is constructed following the United States Household Food Security Survey Module. Calorie based indicator is constructed using household-specific calorie norms. Modelling techniques take account of potential endogeneity in the relationship. The two indicators are aligned in the same direction implying more accurate targeting. However, there is a lack of one-to-one correspondence between the two measures and the drivers of calorie deprivation and food insecurity also differ, suggesting a one-size-fits-all policy cannot address both concerns simultaneously.  相似文献   
300.
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