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   401篇
  免费   26篇
各国政治   25篇
工人农民   53篇
世界政治   35篇
外交国际关系   22篇
法律   215篇
中国政治   9篇
政治理论   61篇
综合类   7篇
  2023年   2篇
  2022年   2篇
  2021年   8篇
  2020年   7篇
  2019年   24篇
  2018年   17篇
  2017年   22篇
  2016年   13篇
  2015年   19篇
  2014年   21篇
  2013年   56篇
  2012年   19篇
  2011年   17篇
  2010年   10篇
  2009年   21篇
  2008年   16篇
  2007年   20篇
  2006年   17篇
  2005年   20篇
  2004年   9篇
  2003年   6篇
  2002年   11篇
  2001年   6篇
  2000年   7篇
  1999年   6篇
  1998年   5篇
  1997年   7篇
  1996年   1篇
  1995年   2篇
  1994年   4篇
  1993年   4篇
  1992年   4篇
  1991年   1篇
  1990年   1篇
  1988年   1篇
  1987年   3篇
  1986年   4篇
  1984年   3篇
  1983年   5篇
  1982年   3篇
  1980年   1篇
  1976年   1篇
  1972年   1篇
排序方式: 共有427条查询结果,搜索用时 0 毫秒
411.
412.
In this article we develop a new model of bodily integrity that we designate ‘embodied integrity’. We deploy it to argue that non‐therapeutic interventions on children should be considered within a decision‐making framework that prioritizes embodied integrity. This would counter the excessive decision‐making power that law currently accords to parents, protecting the child's immediate and future interests. Focusing on legal responses to genital cutting, we suggest that current legal understandings of bodily integrity are impoverished and problematic. By contrast, adoption of an ‘embodied integrity’ model carves out a space for children's rights, while avoiding these negative consequences. We propose that embodied integrity should trump competing values in any best‐interests assessment where a non‐therapeutic intervention is requested. Drawing on Drucilla Cornell and Joel Feinberg's theories we argue that protecting a child's embodied integrity is essential to guarantee his/her right to make future embodied choices and become a fully individuated person.  相似文献   
413.
414.
This paper examines the impact of foreign ownership on export performance by the largest corporate firms in India, to analyse whether the ‘monopolistic advantages’ of multinationals survive in its highly restrictive and regulated environment. After controlling for industrial characteristics and export incentives, foreign ownership has a positive impact on export performance. The statistical significance of the result is not very strong, but the finding counters earlier works based on simple comparisons of exports at the firm level. The analysis also sheds light on other influences of policy significance on export performance.  相似文献   
415.
416.
Frontal sinuses (FSs) have been studied in radiology, anthropology, and forensic anthropology. This study aimed to determine whether it was possible to predict the age and sex of an individual using FS volume. Sixty‐nine anonymized CT scans were imported to MIMICS 10.01® software (Materialise N.V.), and each FS volume was calculated in mm3. There was an absence of significant difference between right and left FS volume (p = 0.173) and an absence of correlation between age and FS volume (Pearson's test; p = 0.705). Sexual dimorphism was significantly different (p = 0.001). However, the most discriminant datum for determining sex was found to be the total FS volume (sum of an individual's right and left FS volumes) with linear discriminant Fisher's function coefficients of ?2.759 for the male group and ?1.275 for the female group. With this model, 72.5% of our sample was correctly classified according to sex.  相似文献   
417.
Indwelling intravascular catheters provide convenient access to healthcare personnel and also recreational intravenous drug users who inject suspensions of oral medications. A nine‐case series of autopsies of clinically stable decedents with indwelling catheters and sudden death is herein presented. Pulmonary histologic findings were consistent with intravenous administration of oral medications in all cases. In eight, the mechanism of death was directly attributed to occlusive vascular embolization of foreign material, with or without contribution of acute drug toxicity. In one, the mechanism of death was solely attributed to acute drug toxicity. Acute, massive embolization of foreign material may explain sudden death by vascular obstruction, whereas chronic repeated injections lead to obliteration of the pulmonary vasculature, increased pulmonary vascular resistance, and cardiac failure. Therefore, a complete autopsy with histologic examination of the lungs and toxicology testing is recommended in patients with indwelling catheters to determine the cause and mechanism of death.  相似文献   
418.
419.
Decision trees provide an alternative to multivariate discriminant analysis, which is still the most commonly used in anthropometric studies. Our study analyzed the metric characterization of a recent virtual sample of 113 coxal bones using decision trees for sex determination. From 17 osteometric type I landmarks, a dataset was built with five classic distances traditionally reported in the literature and six new distances selected using the two-step ratio method. A ten-fold cross-validation was performed, and a decision tree was established on two subsamples (training and test sets). The decision tree established on the training set included three nodes and its application to the test set correctly classified 92% of individuals. This percentage was similar to the data of the literature. The usefulness of decision trees has been demonstrated in numerous fields. They have been already used in sex determination, body mass prediction, and ancestry estimation. This study shows another use of decision trees enabling simple and accurate sex determination.  相似文献   
420.
The use of challenge funds to promote economic and social development continues to grow but has been the subject of relatively little research. This article draws on institutional economics (particularly principal‐agent theory) to define challenge funds and review how they differ from other development funding mechanisms, taking into account their purpose, financial terms, interagency relationships, screening processes, selection mechanisms, implementation and risk sharing characteristics. It then draws on web‐based data for 50 challenge funds to analyse variation in some of these characteristics. The paper identifies evaluability as an important influence, including the relative importance attached to promoting the financial performance of grantees relative to the indirect social benefits of their activities. We conclude with suggestions for further research into the design and performance of challenge funds. Copyright © 2015 John Wiley & Sons, Ltd.  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