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   8072篇
  免费   174篇
各国政治   447篇
工人农民   220篇
世界政治   534篇
外交国际关系   338篇
法律   4923篇
中国共产党   1篇
中国政治   28篇
政治理论   1658篇
综合类   97篇
  2020年   67篇
  2019年   104篇
  2018年   141篇
  2017年   154篇
  2016年   178篇
  2015年   125篇
  2014年   146篇
  2013年   939篇
  2012年   220篇
  2011年   215篇
  2010年   175篇
  2009年   187篇
  2008年   225篇
  2007年   189篇
  2006年   210篇
  2005年   168篇
  2004年   179篇
  2003年   183篇
  2002年   181篇
  2001年   322篇
  2000年   292篇
  1999年   233篇
  1998年   95篇
  1997年   116篇
  1996年   86篇
  1995年   94篇
  1994年   101篇
  1993年   92篇
  1992年   166篇
  1991年   185篇
  1990年   164篇
  1989年   181篇
  1988年   159篇
  1987年   152篇
  1986年   170篇
  1985年   135篇
  1984年   133篇
  1983年   135篇
  1982年   82篇
  1981年   80篇
  1980年   58篇
  1979年   113篇
  1978年   68篇
  1977年   63篇
  1976年   57篇
  1975年   68篇
  1974年   82篇
  1973年   77篇
  1972年   68篇
  1971年   61篇
排序方式: 共有8246条查询结果,搜索用时 0 毫秒
201.
202.
203.
Many Unemployment Insurance (UI) recipients do not find new jobs before exhausting their benefits, even when benefits are extended during recessions. Using Survey of Income and Program Participation (SIPP) panel data covering the 2001 and 2007 to 2009 recessions and their aftermaths, we identify individuals whose jobless spells outlasted their UI benefits (exhaustees) and examine household income, program participation, and health‐related outcomes during the six months following UI exhaustion. For the average exhaustee, the loss of UI benefits is only slightly offset by increased participation in other safety net programs (e.g., food stamps), and family poverty rates rise substantially. Self‐reported disability also rises following UI exhaustion. These patterns do not vary dramatically across household demographic groups, broad income level prior to job loss, or the two business cycles. The results highlight the unique, important role of UI in the U.S. social safety net.  相似文献   
204.
Why were American officials caught by surprise with the military coup and later revolution in Iraq on 14 July 1958? Drawing on American intelligence and diplomatic records as well as multilingual sources, this article argues that the US intelligence failure is the product of two factors: the collection of information from too few and too similar human sources of intelligence in Iraq’s ruling regime, and the unreceptivity of US officials to assessing new information and their unwillingness to update assessments of local Iraqi developments. It revisits America’s intelligence failure in Iraq and suggests important lessons for the study of intelligence.  相似文献   
205.
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   
206.
Punctuated equilibrium theory (PET) suggests that the policy process is characterized by long periods of incremental change and short periods of punctuated change. The impetus for the latter is usually a focusing event that breaks open policy monopolies, allowing for major changes in legislative decision making. While a burgeoning body of literature, a shortcoming in the PET literature is that it has yet to explain why focusing events and subsequent breakdowns in policy monopolies sometimes fail to result in punctuated policy. We integrate theories on cultural change with punctuated equilibrium to explain why focusing events do not always result in the dramatic policy changes that we might expect. Specifically, we use the context of national energy policy and the lexical database, Google Ngram Viewer, to trace punctuating energy‐related events and the occurrence or lack thereof subsequent policy change from 1952 to 2000.  相似文献   
207.
ABSTRACT

In responding to the 2016 reformulation of the United Nation’s Sustainable Development Goals, the development community’s efforts are focused on a sweep of initiatives aiming to promote whole-society, sustainable development. The ambition of the SDGs is inspiring, but also daunting, and does not always sit easily within national models of economic development. This viewpoint profiles two organisations in the south Indian state of Tamil Nadu, that have decades of experience in whole-person development among scheduled tribes and disability communities. Both organisations serve as timely examples of ongoing holistic, whole-person health and development in the context of new ideals and economic realities.  相似文献   
208.
Trade has again emerged as a controversial issue in America, yet we know little about the ideas that guide American thinking on these questions. By combining traditional survey methods with experimental manipulation of problem content, this study explores the ideational landscape among elite Americans and pays particular attention to how elite Americans combine their ideas about commerce with their ideas about national security and social justice. We find that most American leaders think like intuitive neoclassical economists and that only a minority think along intuitive neorealist or Rawlsian lines. Among the mass public, in contrast, a majority make judgments like intuitive neorealists and intuitive Rawlsians. Although elite respondents see international institutions as promising vehicles in principle, in practice they favor exploiting America's advantage in bilateral bargaining power over granting authority to the World Trade Organization. The distribution of these ideas in America is not arrayed neatly along traditional ideological divisions. To understand the ideational landscape, it is necessary to identify how distinctive mentaal models—mercantilist, neorealist, egalitarian, and neoclassical economic—sensitize or desensitize people to particular aspects of geopolitical problems, an approach we call cognitive interactionism.  相似文献   
209.
The profound socio-political crisis in El Salvador fully revealed itself in the events of 1979 and 1980, developing into an open civil war beginning on 10 January 1981. The conflict generated a series of profound changes in the social structure of the country (Segundo Montes, 1988:107).  相似文献   
210.
Friends provide important social contexts for student development. Research has shown that adolescent friends are similar to each other in their interest and values for different school subjects. Yet our current understanding does not extend to knowing whether selection, deselection, or socialization processes are responsible for this phenomena. Without this knowledge, it is very difficult for parents, teachers, and schools to know how and when to intervene. This study investigated selection, deselection, and socialization effects on adolescent students’ task values for academic (languages, math and science, and social sciences) and non-academic subject areas (the arts and physical education). A social network approach was used to examine two waves of annual data collected from school-based networks of adolescents in the first and second years of high school education in Finland (N?=?1419; female?=?48.6%; mean age at first measurement point?=?16). The results revealed that adolescents tended to select friends with similar levels of task values (friend selection) for the arts and physical education, but friends did not become more similar in these areas over time (friend socialization). In contrast, there was evidence of friend socialization, but not friend selection, for the academic school subjects. Across all subjects, differences in task values did not predict friendship dissolution (friend deselection). These findings suggest that to a significant extent, students make agentic choices in developing friendship with schoolmates based on their task values in non-academic subjects. The resultant friend contexts that individuals created, in turn, affected their task values in academic subject areas. These results shed light on the complexity of friend effect mechanisms on task values at the subject domain-specific level.  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