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   623篇
  免费   18篇
各国政治   52篇
工人农民   17篇
世界政治   83篇
外交国际关系   36篇
法律   227篇
中国政治   3篇
政治理论   210篇
综合类   13篇
  2021年   5篇
  2020年   3篇
  2019年   13篇
  2018年   20篇
  2017年   26篇
  2016年   18篇
  2015年   12篇
  2014年   15篇
  2013年   109篇
  2012年   10篇
  2011年   16篇
  2010年   15篇
  2009年   18篇
  2008年   24篇
  2007年   15篇
  2006年   16篇
  2005年   11篇
  2004年   14篇
  2003年   9篇
  2002年   10篇
  2001年   15篇
  2000年   12篇
  1999年   8篇
  1998年   11篇
  1997年   6篇
  1996年   15篇
  1995年   7篇
  1994年   7篇
  1993年   8篇
  1992年   11篇
  1991年   12篇
  1990年   9篇
  1989年   6篇
  1988年   8篇
  1987年   12篇
  1986年   11篇
  1985年   13篇
  1984年   12篇
  1983年   4篇
  1982年   10篇
  1981年   8篇
  1980年   6篇
  1979年   11篇
  1978年   8篇
  1977年   5篇
  1976年   5篇
  1975年   3篇
  1973年   4篇
  1969年   3篇
  1967年   4篇
排序方式: 共有641条查询结果,搜索用时 15 毫秒
611.
Collections of tumour samples can be an invaluable resource for medical research. There are, however, numerous ethical and legal challenges associated with tumour banking. While there has been extensive discussion of these issues in the legal and ethical literature, there are few available empirical data in relation to the activities of tumour banks in Australia, their practices around ethically charged issues, and their success in implementing complex regulatory guidelines. The aim of this study was to gain more information about the activities of tumour banks in New South Wales, Australia, with a particular focus on their management of, and attitudes towards, ethical and regulatory issues. A survey of 27 tumour collection and research facilities was conducted using a 55-item questionnaire. There is significant heterogeneity of research methodologies as well as of methods for gaining consent and ensuring donor privacy, and there is general concern among the research community about ethical and regulatory issues related to tumour banking. Heterogeneity of practice and uncertainty about ethical and regulatory requirements is problematic in its potential to hinder research and its potential to generate the space for unethical practice, whether intentional or unintentional. There is a pressing need to address these issues so that tumour banks can be used in the most ethical and efficient way possible.  相似文献   
612.
Although knowledge of torture and physical and psychological abuse was widespread at both the Guantanamo Bay detention facility and Abu Ghraib prison in Iraq, and known to medical personnel, there was no official report before the January 2004 Army investigation of military health personnel reporting abuse, degradation or signs of torture. Military medical personnel are placed in a position of a "dual loyalty" conflict. They have to balance the medical needs of their patients, who happen to be detainees, with their military duty to their employer. The United States military medical system failed to protect detainee's human rights, violated the basic principles of medical ethics and ignored the basic tenets of medical professionalism.  相似文献   
613.
Psychosocial treatment in the 21st century   总被引:1,自引:0,他引:1  
Over the past 50 years, psychosocial treatment has played an increasingly prominent role in helping persons with mental illness live in communities rather than in institutions. This paper briefly reviews evidence for and discusses three forms of treatment-assertive community treatment, supported employment, and cognitive behavior treatment-which have been studied extensively and are widely accepted as effective interventions. Forces are discussed that have shaped these and other psychosocial treatment over the past five decades. Despite the accumulated evidence, many questions remain about the cost-effectiveness and applicability of these treatments in specific populations and service environments. The development of these and other treatments has been, and continues to be, shaped by concerns about rising health care costs, a heightened emphasis on evidence-based treatment and by consumers taking a more active role in determining the services, and outcomes that are most helpful to them.  相似文献   
614.
615.
616.
617.
618.
619.
The forensic odontological examination of 112 victims in the 1983 air accident near Abu Dhabi is described with particular reference to the problems encountered in the age assessment of the 26 children, and serves to illustrate that dental identification in aviation accidents may be of only limited application in Asian victims. Following this accident, other means of identification had misguidedly been removed by the recovery teams. Of those identified, half were by dental means alone, but this amounted to only 6.24% of the total number of victims.  相似文献   
620.
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