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   1047篇
  免费   44篇
各国政治   75篇
工人农民   44篇
世界政治   88篇
外交国际关系   46篇
法律   379篇
中国政治   6篇
政治理论   405篇
综合类   48篇
  2020年   13篇
  2019年   28篇
  2018年   13篇
  2017年   30篇
  2016年   20篇
  2015年   19篇
  2014年   24篇
  2013年   113篇
  2012年   26篇
  2011年   28篇
  2010年   28篇
  2009年   33篇
  2008年   23篇
  2007年   34篇
  2006年   47篇
  2005年   35篇
  2004年   41篇
  2003年   40篇
  2002年   30篇
  2001年   30篇
  2000年   20篇
  1999年   11篇
  1998年   16篇
  1997年   15篇
  1996年   16篇
  1995年   17篇
  1994年   23篇
  1993年   20篇
  1992年   14篇
  1991年   19篇
  1990年   20篇
  1989年   14篇
  1988年   10篇
  1987年   18篇
  1986年   16篇
  1985年   9篇
  1984年   19篇
  1983年   12篇
  1982年   21篇
  1981年   13篇
  1980年   16篇
  1979年   8篇
  1978年   16篇
  1977年   10篇
  1976年   8篇
  1975年   5篇
  1974年   10篇
  1973年   11篇
  1970年   8篇
  1968年   3篇
排序方式: 共有1091条查询结果,搜索用时 15 毫秒
51.
Although multiracial individuals are the fastest growing population in the United States, research on the identity development of multiracial adolescents remains scant. This study explores the relationship between ethnic identity, its components (affirmation, exploration), and mental health outcomes (anxiety, depressive symptoms) within the contexts of schools for multiracial adolescents. The participants were multiracial and monoracial minority and majority high school students (n = 4,766; 54.6 % female). Among the participants, 88.1 % were Caucasian, 7.4 % were African American, and 4.5 % were multiracial. The research questions examined the relationship between ethnic identity exploration and affirmation on mental health outcomes and explored the role school context plays in this relationship. The findings suggested that multiracial youth experience more exploration and less affirmation than African Americans, but more than Caucasians. In addition, multiracial youth were found to have higher levels of mental health issues than their monoracial minority and majority peers. Specifically, multiracial youth had higher levels of depressive symptoms than their African American and Caucasian counterparts. Multiracial and Caucasian youth had similar levels of anxiety but these levels were significantly higher than African Americans. School diversity did not influence mental health outcomes for multiracial youth. These findings provide insight into the experiences of multiracial youth and underscore the importance of further investigating factors that contribute to their mental health outcomes.  相似文献   
52.
Journal of Youth and Adolescence - In the original publication, the legends for Figs 4 and 5 were incorrect, such that each regression line was mislabeled with the incorrect country. Below are the...  相似文献   
53.
The purpose of this paper is to provide the definitional and empirical background to the Liberal Democracy Series I Index of democracy that is available in Bollen (1998) but whose rationale has not been published. More specifically, the paper (1) gives a definition of liberal democracy that has guided the formation of this index, (2) describes measures that correspond to this definition, (3) provides a measurement model that links the indicators of democracy to the latent variables that represent the concept, (4) explains the construction of the Liberal Democracy Series I Index, and (5) compares the Series I democracy measure to two other widely used democracy measures in a latent curve model. The Liberal Democracy Series I Index provides a simple unweighted measure of liberal democracy that minimizes the bias in expert ratings, is highly reliable and highly correlated with the latent liberal democracy variable. The evidenced reviewed here suggests that its measurement properties are superior to the Polity and Vanhanen democracy indices with the exception that it is available for a more limited period of years than these latter two.  相似文献   
54.
Some electronics experts believe that robots, like present‐day computers, will be commonplace. A diverse assortment of robots, with varying purposes, capacities, forms, and sizes, is emerging with significant implications for the policy, service and regulatory responsibilities of government. This paper explores three public policy fields – aging, health care and defence – where the use of robotics is already substantial or where it is projected to grow substantially and where significant ethical issues exist or are anticipated. Applying ethical theories to the use of robotics is difficult. In the near‐term, the focus should be on the ethical standards and behaviour of those designing, manufacturing, programming and operating robots. Several key topics in contemporary public sector ethics, including personal moral responsibility, privacy and accountability, are central to the emerging field of robot ethics. This suggests developing an ethics regime for robotics and examining the need for laws and regulations governing its use.  相似文献   
55.
56.
57.
58.
59.
Constitutional change is in the air and this applies to the constitutional system, not just the documents that we call the Commonwealth and state constitutions in Australia. The causes of change are multitudinous but two warrant special mention: (a) natural or endemic change in the economy and society at large, and (b) political causes.  相似文献   
60.
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