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   6460篇
  免费   286篇
  国内免费   1篇
各国政治   362篇
工人农民   34篇
世界政治   911篇
外交国际关系   826篇
法律   2869篇
中国共产党   314篇
中国政治   580篇
政治理论   480篇
综合类   371篇
  2023年   28篇
  2022年   31篇
  2021年   25篇
  2020年   31篇
  2019年   40篇
  2018年   51篇
  2016年   33篇
  2015年   38篇
  2014年   169篇
  2013年   117篇
  2012年   397篇
  2011年   404篇
  2010年   215篇
  2009年   164篇
  2008年   300篇
  2007年   350篇
  2006年   383篇
  2005年   322篇
  2004年   316篇
  2003年   345篇
  2002年   319篇
  2001年   247篇
  2000年   220篇
  1999年   142篇
  1998年   102篇
  1997年   105篇
  1996年   92篇
  1995年   108篇
  1994年   116篇
  1993年   76篇
  1992年   73篇
  1991年   95篇
  1990年   67篇
  1989年   69篇
  1988年   114篇
  1987年   88篇
  1986年   84篇
  1985年   101篇
  1984年   105篇
  1983年   98篇
  1982年   69篇
  1981年   68篇
  1980年   84篇
  1979年   48篇
  1977年   17篇
  1976年   37篇
  1973年   20篇
  1964年   26篇
  1962年   20篇
  1957年   19篇
排序方式: 共有6747条查询结果,搜索用时 0 毫秒
971.
This study uses data from 641 state prison parolees in California to examine the associations between methamphetamine use and three measures of criminal behavior: (a) self-reported violent criminal behavior, (b) return to prison for a violent offense, and (c) return to prison for any reason during the first 12 months of parole. Methamphetamine use was significantly predictive of self-reported violent criminal behavior and general recidivism (i.e., a return to custody for any reason). However, methamphetamine use was not significantly predictive of being returned to custody for a violent offense. These trends remained even after controlling for involvement in the drug trade (i.e., sales, distribution, or manufacturing).  相似文献   
972.
973.
In 2005 a Legislation Review Committee, known as the Lockhart Review, undertook a review of the Commonwealth legislation regulating human embryo research. The report that emanated from the review was released in December 2005. If the report recommendations are implemented by the Federal Government, Australian scientists will be permitted to create human embryo entities currently known as "human embryo clones" by the process known as somatic cell nuclear transfer to develop stem cell lines for research purposes. Many argue that stem cells have the potential to be developed into valuable medical therapies that could assist with, or cure, serious diseases such as Type 1 diabetes and Parkinson's disease. This article analyses the evidence presented to the Lockhart Review and the report recommendations. It assesses where the Lockhart recommendations would place Australia in terms of worldwide embryo research. It is argued that the Federal Government should fully embrace the recommendations so that Australia can progress stem cell research to its fullest potential.  相似文献   
974.
Moral or ethical codes of practice represent one of the oldest forms of medical regulation. Legislation such as the Medical Practice Act 1992 (NSW) enables regulatory bodies to create codes of practice for medical practitioners. Such codes can become an important aspect of disciplinary proceedings by providing the yardstick against which practitioners' conduct is evaluated. An important aspect of the New South Wales Board's Code of Professional Conduct 2005 is the obligation for doctors to report adverse events which reflect on the performance or conduct of colleagues. This is part of an increasing impetus to report adverse events in the interest of public safety. In the long- term this is a constructive development as it is likely to lead to improvements in identification of risks and hazards and thereby to result in better service provision and community health.  相似文献   
975.
976.
977.
978.
Cohen G 《Newsweek》2006,147(3):82, 84-82, 86
  相似文献   
979.
980.
A case of ingested cocaine is reported in which death must be classified as body packer syndrome although both the temporal relationship and the number of packets were atypical. The deceased, a consumer of hard drugs who smuggled for his own use, was found in his flat. He was resuscitated and survived for another four days in hospital. Only four intact drug packages were found in the upper gastro-intestinal tract. The concentrations of cocaine in blood and organs were relatively low but in a potentially lethal range. The case is presented, and its particularities as well as the option of induced vomiting as a way of preventing the fatal outcome are discussed.  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