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   951篇
  免费   42篇
各国政治   108篇
工人农民   40篇
世界政治   88篇
外交国际关系   99篇
法律   443篇
中国共产党   7篇
中国政治   37篇
政治理论   158篇
综合类   13篇
  2023年   13篇
  2022年   2篇
  2021年   10篇
  2020年   20篇
  2019年   28篇
  2018年   39篇
  2017年   37篇
  2016年   66篇
  2015年   55篇
  2014年   58篇
  2013年   193篇
  2012年   51篇
  2011年   36篇
  2010年   26篇
  2009年   15篇
  2008年   28篇
  2007年   32篇
  2006年   23篇
  2005年   38篇
  2004年   42篇
  2003年   23篇
  2002年   40篇
  2001年   23篇
  2000年   22篇
  1999年   9篇
  1998年   10篇
  1997年   6篇
  1996年   5篇
  1995年   3篇
  1994年   3篇
  1993年   4篇
  1992年   3篇
  1991年   2篇
  1989年   2篇
  1988年   2篇
  1987年   2篇
  1986年   1篇
  1984年   1篇
  1983年   3篇
  1981年   2篇
  1980年   1篇
  1979年   1篇
  1978年   2篇
  1977年   1篇
  1975年   2篇
  1973年   2篇
  1972年   1篇
  1971年   1篇
  1970年   1篇
  1965年   1篇
排序方式: 共有993条查询结果,搜索用时 0 毫秒
131.
In legislatures with weak gatekeeping institutions and constrained plenary time, scheduling rules and majority requirements explain inter-party differences in the consideration and approval of law initiatives. In this paper a mixture survival model is used to analyse legislative success in a legislature with very weak gatekeeping prerogatives, the House of Representatives of Uruguay. Evidence is provided that the loss of majority support depletes plenary time more rapidly and yields an ideological drift that benefits the median voter of the House. The results inform recent debates on the endogenous formation of a plenary schedule in open sky legislatures.  相似文献   
132.
The article analyzes the institutional foundation of the innovativeness and competitiveness of two German industrial sectors, mechanical engineering and biotechnology. It applies a systemic innovation approach to identify what changes at the national and regional levels can explain why mechanical engineering has kept a competitive advantage for many decades while we can observe a dynamic catching-up process in biotechnology. Both sectors provide good examples of the reconfigurations that take place in national innovation systems in both territorial and functional terms.  相似文献   
133.
According to critical literature, psychiatrization is a central feature of gendered social control. It operates in a twofold process: by orienting women to medical institutions rather than the penal system, and, for those women who do enter the criminal justice system, by favoring an interpretation of their behavior in terms of mental health problems. However, the production of gendered social control cannot be reduced to institutional decision-making; it also leaves its traces in various discursive forms. One such form is forensic psychiatrists' discourse on the offenders they evaluate. Our study analyzes these forensic reports as units of a computerized database. Our goal is to gain insight into the text by means of systematic quantitative and qualitative procedures. Even though the expert discourse is shaped by specifications requested by the court, the discourse examined here constructs two very distinct identities that do not correspond to stereotyped conceptions about femininity and masculinity.  相似文献   
134.
探测急性心肌缺血早期细胞膜PNA受体的表达特点。应用免疫组化法(S-P法)对32只SD大鼠急性心肌缺血早期不同时间心肌细胞膜凝集素受体的表达进行研究。结果发现:心肌缺血15min时,心肌局部可出现PNA染色阳性,且随着缺血时间的延长,其阳性表达面积明显增加;缺血2h;其表达水平达到高峰,呈弥漫性染色阳性,明显高于对照组;2h后,心肌缺血区域PNA受体的表达开始出现下降趋势。实验结果稳定,敏感性强,可为心肌缺血早期诊断提供客观的依据。  相似文献   
135.
In this paper, we test for causality between GDP growth andsocial protection expenditure in the European Union. To that end,we apply Hsiao's (1981) sequential procedure to data for twelveEU countries along the 1970–1994 period. Our results suggestthat, for Belgium, Germany, Ireland, Luxembourg, the Netherlands,Portugal, and Spain, causality runs only from social protectiongrowth to GDP growth, while for Denmark, France, Greece, Italy,and the United Kingdom, no causality is found between socialprotection growth and GDP growth.  相似文献   
136.
Democracy and dictatorship revisited   总被引:2,自引:0,他引:2  
We address the strengths and weaknesses of the main available measures of political regime and extend the dichotomous regime classification first introduced in Alvarez et al. (Stud. Comp. Int. Dev. 31(2):3–36, 1996). This extension focuses on how incumbents are removed from office. We argue that differences across regime measures must be taken seriously and that they should be evaluated in terms of whether they (1) serve to address important research questions, (2) can be interpreted meaningfully, and (3) are reproducible. We argue that existing measures of democracy are not interchangeable and that the choice of measure should be guided by its theoretical and empirical underpinnings. We show that the choice of regime measure matters by replicating studies published in leading journals.  相似文献   
137.
Now that racism has been officially recognized in Brazil, and some universities have adopted affirmative-action admission policies, measures of the magnitude of racial inequality and analyses that identify the factors associated with changes in racial disparities over time assume particular relevance to the conduct of public debate. This study uses census data from 1950 to 2000 to estimate the probability of death in the early years of life, a robust indicator of the standard of living among the white and Afro-Brazilian populations. Associated estimates of the average number of years of life expectancy at birth show that the 6.6-year advantage that the white population enjoyed in the 1950s remained virtually unchanged throughout the second half of the twentieth century, despite the significant improvements that accrued to both racial groups. The application of multivariate techniques to samples selected from the 1960, 1980, and 2000 census enumerations further shows that, controlling for key determinants of child survival, the white mortality advantage persisted and even increased somewhat in 2000. The article discusses evidence of continued racial inequality during an era of deep transformation in social structure, with reference to the challenges of skin color classification in a multiracial society and the evolution of debates about color, class, and discrimination in Brazil.  相似文献   
138.
For the first time in U.S. history, after decades of unprecedented growth in interior immigration enforcement disproportionately impacting Latinos, ten percent of the U.S. House of Representatives is Hispanic. Using congressional district-level data on all candidates participating in general elections to the U.S. House of Representatives between 2008 and 2018, we show that intensified immigration enforcement suppressed Hispanics’ representation in congressional elections. The effect—nonexistent for other minorities, such as non-Hispanic Black candidates, as well as in primary elections—is driven by local police-based measures and diminished electoral support. Furthermore, it appears more harmful during midterm elections and in localities without a sanctuary policy.  相似文献   
139.
This paper provides novel evidence on how a sharp increase in labor force participation among older women affects the provision of informal care to their older parents. Based on data from Understanding Society – The UK Household Longitudinal Study, we use an instrumental variable approach that exploits a unique reform that increased the female State Pension age by up to six years. Our results provide evidence of a trade-off between the intensive margin of work and informal care provided outside the household: an increase of 10 hours of work per week reduces the provision of informal care by 2.1 hours a week, which amounts to roughly £2,100 of yearly care-hours lost. This reduction in caregiving is largest among women working in physically or psychosocially demanding jobs, and “sandwich generation” women who have both a living grandchild and a parent alive. Using data from the English Longitudinal Study of Ageing, we show that older parents whose daughters became ineligible to claim their pensions experienced a significant reduction in the amount of care they receive from their daughters, which was not compensated by an increase in formal care or other sources of support. Our results suggest that policies that increase older workers’ labor supply require changes in long-term care policy that compensate for the loss of informal care.  相似文献   
140.
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