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   576篇
  免费   45篇
各国政治   56篇
工人农民   22篇
世界政治   73篇
外交国际关系   22篇
法律   325篇
中国政治   5篇
政治理论   113篇
综合类   5篇
  2024年   1篇
  2023年   13篇
  2021年   9篇
  2020年   19篇
  2019年   22篇
  2018年   16篇
  2017年   27篇
  2016年   33篇
  2015年   26篇
  2014年   30篇
  2013年   129篇
  2012年   39篇
  2011年   21篇
  2010年   14篇
  2009年   9篇
  2008年   24篇
  2007年   26篇
  2006年   18篇
  2005年   20篇
  2004年   18篇
  2003年   16篇
  2002年   14篇
  2001年   10篇
  2000年   15篇
  1999年   6篇
  1998年   5篇
  1997年   5篇
  1996年   5篇
  1995年   3篇
  1994年   2篇
  1993年   3篇
  1992年   3篇
  1990年   1篇
  1989年   2篇
  1988年   1篇
  1987年   1篇
  1986年   1篇
  1984年   1篇
  1983年   3篇
  1981年   2篇
  1978年   2篇
  1975年   2篇
  1973年   2篇
  1970年   1篇
  1965年   1篇
排序方式: 共有621条查询结果,搜索用时 15 毫秒
101.
Family‐centered care during adolescent detention aims to increase parental participation in an attempt to optimize treatment outcomes. However, little is known about parents’ needs in family‐centered care. To fill this gap, we interviewed 19 purposefully selected parents of detained adolescents using a semi‐structured topic list. Although needs differed between parents, they were generally interested in activities that included spending time with their child. It is important for parents to receive timely information about their child's condition and treatment, detention procedures, and activities in the facility. The outcomes demonstrated that parents expected a two‐way communication based on respect and reliability.  相似文献   
102.
Soil vestiges might provide information about a crime scene. The Rietveld method with X‐ray diffraction data (RM‐XRD) is a nondestructive technique that makes it possible to characterize minerals present in the soils. Soil clays from the metropolitan region of Curitiba (Brazil) were submitted to DCB treatment and analyzed using XRD with CuKα radiation in the step‐scan mode (0.02° 2θ/5 s). The GSAS+EXPGUI software was used for RM refinement. The RM‐XRD results, together with the principal component analysis (PCA) (52.6% total variance), showed the kaolinite predominance in most analyzed samples and the highest quartz contents in “site 1.” Higher anatase, and gibbsite and muscovite contents influenced discrimination, mainly in “site 3” and “site 1,” respectively. These results were enough to discriminate clays of four sites and two horizons using a reduced amount of sample showing that the technique can be applied to the investigation into soil vestiges.  相似文献   
103.
104.
Between 1988 and 2000, thousands of lives were taken in Algeria at the hands of a violence that sought justification in religion—Islam. While these events can be understood as the direct consequence of decolonization and the bloody Algerian War that lasted eight years, it is important to note that the rise of terrorist violence in Algeria has had consequences beyond its national boundaries. For instance, renowned historian Benjamin Stora has argued that the treatment of Islam in contemporary France appears to have been shaped by the long and bloody conflict that resulted in Algeria obtaining its independence. As Stora points out, “the War with Algeria continues through the struggle against Islam, which today is masked as a fight against Islamic ‘fundamentalism’—a word that is curiously borrowed from vocabulary that is specific to Christianity. The observance of a France that is rooted in the purity of a mythical identity, endlessly threatened, is what legitimizes, a priori, all violence, all measures of ‘war’ in a defense against the ‘invaders.’”  相似文献   
105.
Book reviews     
Deane Curtin, Chinnagounders’ Challenge: The Question of Ecological Citizenship. Bloomington: Indiana University Press, 1999.

Jim Yong Kim, et ah, ed., Dying For Growth: Global Inequality and the Health of the Poor. Monroe, ME: Common Courage Press, 2000.

Lester R. Brown, Christopher Flavin, Hilary French, et al., eds., State of the World 1998. New York: W.W. Norton and Company, 1998.

Margit Mayer and John Ely, eds., The German Greens. Paradox Between Movement and Party. Translated by Michael Schatzschneider. Philadelphia: Temple University Press, 1998.  相似文献   
106.
107.
The author quotes and briefly analyses a few exerpts taken from textbooks written and printed by Christain missionaries for the Congo primary schools. The Bible story of Cham cursed by his father, told in those texts from which Congolese children learned to read in the first half of the 20th century, stressed the white man’s superiority as coming from God.  相似文献   
108.
109.
Technology Trade     
This study addresses the question of why some countries import more research and development-intensive goods than others. Using a panel data set of 80 countries for the period 1970–1995, results indicate that domestic investment, foreign direct investment and the quality of intellectual property rights systems positively affect technology imports. However, the higher the percentage of the workforce with primary studies, the lower technology imports are. Moreover, intellectual property rights tend to reinforce the positive role played by foreign direct investments in importing technology while the ability of imitation reduces the effect of intellectual property rights.  相似文献   
110.
The inefficiency of cooperative agriculture relative to private farms is often attributed to difficulties in monitoring or poor incentives. We develop a model to show that, in technologies with numerous sequential steps, even small shortfalls in worker effort can result in large output declines. Using data on cooperative and private farms in El Salvador, we find greater shortfalls in efficiency between cooperatives and private farms, as well as among cooperatives, for coffee, a crop requiring numerous steps in its cultivation, than for maize and sugar, which require fewer steps. Thus the undersupply of effort in cooperatives may be less than differences in productivity suggest, and cooperative agriculture is most likely to be successful where production does not involve many sequential steps.  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