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   3252篇
  免费   128篇
各国政治   251篇
工人农民   116篇
世界政治   328篇
外交国际关系   218篇
法律   1282篇
中国政治   17篇
政治理论   1089篇
综合类   79篇
  2023年   12篇
  2022年   12篇
  2021年   27篇
  2020年   55篇
  2019年   60篇
  2018年   109篇
  2017年   97篇
  2016年   114篇
  2015年   75篇
  2014年   87篇
  2013年   518篇
  2012年   107篇
  2011年   112篇
  2010年   86篇
  2009年   95篇
  2008年   106篇
  2007年   125篇
  2006年   95篇
  2005年   115篇
  2004年   107篇
  2003年   86篇
  2002年   91篇
  2001年   82篇
  2000年   78篇
  1999年   69篇
  1998年   53篇
  1997年   53篇
  1996年   53篇
  1995年   47篇
  1994年   44篇
  1993年   40篇
  1992年   49篇
  1991年   49篇
  1990年   46篇
  1989年   42篇
  1988年   37篇
  1987年   25篇
  1986年   25篇
  1985年   31篇
  1984年   25篇
  1983年   23篇
  1982年   33篇
  1981年   38篇
  1980年   28篇
  1979年   14篇
  1978年   18篇
  1977年   12篇
  1975年   12篇
  1974年   13篇
  1967年   7篇
排序方式: 共有3380条查询结果,搜索用时 0 毫秒
81.
X-ray photoelectron spectroscopy (XPS) is a widely used technique to characterize the surface chemistry of materials. It plays a crucial role in accessing qualitative and quantitative information and in detecting the presence of chemical functional groups on the surface of any material. The forensic methods available to detect and identify elements and organic/inorganic compounds are often destructive, so evidence cannot be re-analyzed. However, XPS allows rapid analysis of samples without damaging them. Recently, an increasing number of forensic researchers have begun to study certain chemical information on fingermarks. In this study, the authors aimed to present the applicability and power of XPS imaging in fingermark analysis which can also provide specific information about the fingermark chemical composition. Herein, monochromated X-ray (Al Kα) spot size was fixed at 50 μm. XPS mapping resulted in the acquisition of spectra at each pixel, in an array of 41 × 30 pixels with a step size of 50 μm. Then, a simple discussion has been made about how the scanned surface spectrum and basic snapshot spectra are used to identify different components at a fingertip of a scanned surface area (~3 mm2). Hence, a fingermark pattern contaminated with caffeine, TiO2, and Pb/PbO deposited on the silicon wafer can be chemically mapped and visualized by XPS using principal component analysis (PCA). Thus, the present study showed the possible applicability of XPS for the identification of illicit drugs of abuse, gunshot residue, and skin care products on latent fingermark by mimicking a crime scene evidence.  相似文献   
82.
Correspondence in value orientation between parents and their offspring may be due to actual transmission processes between generations, but it may also be due to influences from the general value context in society that are common to parents and their offspring. This common value context is referred to as Zeitgeist. The present study deals with one family relationship value (i.e., parents’ and adolescents’ obligations toward the family). Participants were 1,252 immigrant and 726 national adolescent–parent dyads from 10 Western countries. There were significant relationships between the value placed on family obligations among parents and offspring, and these were independent of gender. Zeitgeist effects, both intergenerational and intragenerational, were found. The strength of these Zeitgeist effects depended on the basis for defining Zeitgeist, either a person’s own ethnic group or the wider community including both nationals and immigrants. For explaining national adolescents’ acceptance of their family obligations, both the ethnic and the national Zeitgeist played a role, whereas in the immigrant groups only the ethnic Zeitgeist played a significant role. In short, in an immigration context it makes sense to distinguish the influence of a person’s own ethnic group from the influence of the wider community, including other ethnic groups. Explanations are suggested and implications are discussed.
Paul VedderEmail:
  相似文献   
83.
This research analyzes the individual-level factors associated with public support for the private provision of public goods and services. Given that privatization requires the transfer of authority from public to private entities, we argue that beliefs about private companies are an important and overlooked source of heterogeneity in explaining public policy preferences toward privatization. We test this expectation using survey data from the 2014 Cooperative Congressional Election Study. We find that support for privatization is associated with positive beliefs about the motivation of private companies and with favorable views about corporate accountability relative to the accountability of government. Opposition to privatization is associated with beliefs about corporate influence in politics. Preferences for limited government are also associated with support for privatization. These results highlight the potential for beliefs about private companies to serve as a group heuristic in political reasoning and the ability of citizens to make reasoned choices on complex public policy issues.  相似文献   
84.
Paul Chaney 《欧亚研究》2018,70(4):638-665
Abstract

This study of lesbian, gay, bisexual and transgender rights in the Russian Federation uses frame analysis of civil society input into the UN Universal Periodic Review. It reveals a stark state–civil society ‘disconnect’ reflecting oppressive government practices, including Law No. 135-FZ on ‘non-traditional sexual relations’. This raises wider questions about the efficacy of the review system, not least because issues of performativity and legitimation can be seen to facilitate authoritarian resilience. This allows the ruling elite to continue to dissemble by espousing universal rights yet strategically framing them as heteronormative, integral to the protection of ‘traditional values’ and inimical to identity-based rights claims.  相似文献   
85.
86.
87.
The research reported here is an analysis of the evolution of the relationships that comprise a single public health network, focusing especially on the position of the network administrative organization (Provan and Kenis 2008 Provan, K. G. and P. Kenis. 2008. “Modes of Network Governance: Structure, Management, and Effectiveness.” Journal of Public Administration Research and Theory 18(2): 229252.[Crossref], [Web of Science ®] [Google Scholar]) in the flow of knowledge among a large number of organizations providing similar services. Our study examines the North American Quitline Consortium (NAQC), a multi-sector network that spans the US and Canada and whose members provide telephone-based tobacco cessation services to anyone interested in quitting smoking. Data were collected using web-based surveys at three different points of time. Implications are discussed for network organizing, for both theory and practice, focusing especially on the importance of the network administrative organization in shaping the evolution of the whole network information flow.  相似文献   
88.
89.
90.
This article explores the teaching and learning challenges for the discipline of international studies (IS) that arise from the contemporary social, economic, and political changes usually labeled "globalization." The focus is upon the challenge posed to IS by a transformation in the nature of the relationship of teachers and students to the subject matter that they study: that is, teachers and students increasingly experience and contribute to globalization in the course of their daily lives as they simultaneously teach and learn about it. Significantly for the study of globalization in IS, pedagogical debates surrounding active teaching and learning highlight the potential for strategies that actively engage students' interests and everyday experiences with the subject itself. On this basis, the article outlines some potential routes into the active teaching and learning of globalization in the field of international political economy, illustrating these with examples from classroom activities and exercises.  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