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   1074篇
  免费   68篇
各国政治   55篇
工人农民   40篇
世界政治   107篇
外交国际关系   130篇
法律   472篇
中国政治   4篇
政治理论   325篇
综合类   9篇
  2023年   10篇
  2022年   3篇
  2021年   6篇
  2020年   28篇
  2019年   35篇
  2018年   35篇
  2017年   54篇
  2016年   62篇
  2015年   38篇
  2014年   40篇
  2013年   151篇
  2012年   35篇
  2011年   54篇
  2010年   38篇
  2009年   40篇
  2008年   38篇
  2007年   26篇
  2006年   35篇
  2005年   40篇
  2004年   42篇
  2003年   40篇
  2002年   28篇
  2001年   17篇
  2000年   26篇
  1999年   18篇
  1998年   17篇
  1997年   15篇
  1996年   11篇
  1995年   9篇
  1994年   7篇
  1993年   16篇
  1992年   8篇
  1991年   14篇
  1990年   14篇
  1989年   10篇
  1988年   6篇
  1987年   8篇
  1985年   11篇
  1984年   5篇
  1983年   7篇
  1982年   6篇
  1981年   3篇
  1980年   5篇
  1979年   3篇
  1978年   4篇
  1977年   4篇
  1975年   5篇
  1974年   4篇
  1972年   3篇
  1970年   2篇
排序方式: 共有1142条查询结果,搜索用时 31 毫秒
401.
This article examines the early development in Britain of quasi-markets for domiciliary care. Initially there were widespread doubts about the appropriateness of market mechanisms for social care because it was regarded as inherently different from other goods and services. We examine these differences and how they are most apparent in domiciliary care — which is provided to the most vulnerable people in the most vulnerable of settings. The study provides a demanding test and illuminating case study of the introduction of competition through quasi-markets. It highlights some potential threats to service quality and demonstrates that to secure such quality for vulnerable users, public sector purchasers need to develop long-term, high-trust relationships with a range of high quality care providers.  相似文献   
402.
403.
404.
405.
406.
407.
408.
409.
Over the last two decades, researchers and policy makers have begun to devote more attention to the problem of elder abuse. Still, compared to studies on other types of family violence, research on elder abuse is scarce. To better understand how elder abuse is portrayed in the media and using “newsmaking criminology” as a theoretical framework, this study considers how 11 newspapers describe the phenomenon. In all, 530 articles about elder abuse were content analyzed using standard rules of content analysis. Results suggest that certain types of elder abuse are excluded from the press. In addition, the press tends to define elder abuse as a crime, but not as a domestic violence offense. Implications are provided.  相似文献   
410.
Forensic laboratories are often faced with cases in which methamphetamine hydrochloride‐mixed blood is unable to be identified as human blood by immunochromatography against human hemoglobin A0. The application of mRNA expression analysis to samples that showed a false‐negative with immunochromatography was investigated as an alternative approach that did not depend on the antigen–antibody reaction. Real‐time PCR was used to examine the expression levels of blood markers such as glycophorin A, spectrin beta, and hemoglobin beta. Hemoglobin beta was the only marker that was specifically detected in blood, while glycophorin A was useful for determining human specificity. Hemoglobin beta showed good detection sensitivity and was detectable in 37‐year‐old blood stains. Hemoglobin beta was exclusively detectable in methamphetamine hydrochloride‐mixed blood stains. Detergents and disinfectants did not significantly influence mRNA markers. The proposed mRNA expression analysis was suitable for human blood identification as an alternative method to immunochromatography.  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