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   578篇
  免费   35篇
各国政治   20篇
工人农民   65篇
世界政治   94篇
外交国际关系   10篇
法律   310篇
中国政治   9篇
政治理论   99篇
综合类   6篇
  2024年   1篇
  2023年   6篇
  2022年   3篇
  2021年   8篇
  2020年   17篇
  2019年   17篇
  2018年   29篇
  2017年   28篇
  2016年   19篇
  2015年   21篇
  2014年   16篇
  2013年   62篇
  2012年   31篇
  2011年   20篇
  2010年   20篇
  2009年   15篇
  2008年   43篇
  2007年   39篇
  2006年   23篇
  2005年   29篇
  2004年   18篇
  2003年   17篇
  2002年   17篇
  2001年   7篇
  2000年   3篇
  1999年   4篇
  1998年   6篇
  1997年   6篇
  1996年   6篇
  1995年   3篇
  1994年   4篇
  1993年   7篇
  1992年   7篇
  1991年   4篇
  1990年   6篇
  1989年   2篇
  1988年   5篇
  1987年   1篇
  1986年   4篇
  1985年   9篇
  1984年   5篇
  1983年   1篇
  1982年   5篇
  1981年   7篇
  1980年   3篇
  1979年   2篇
  1977年   3篇
  1976年   2篇
  1975年   1篇
  1969年   1篇
排序方式: 共有613条查询结果,搜索用时 15 毫秒
31.
This article draws attention to the dominance of marriage during the twentieth century and the strain this institution was, and still is, under. This is achieved by focusing upon the single as a problematic category in the context of interwar Britain through an examination of the writings of Marie Carmichael Stopes, one of the leading experts on marriage, and her single correspondents. There are clear contradictions in Stopes's writings, which she was unable to acknowledge, between sex as a normal healthy appetite which it could be dangerous to suppress and the denial of a sex life to the single. These are shown to have had the potential to destabilise marriage as the only site of legitimate reproduction and sexual relations. Examining the differences between her advice to single men and women also exposes the gender divide in relation to the concept of sublimation and the difficulties inherent in the concept of substitute mother as a stable and coherent identity for the single woman. The article concludes by making links between the position of single men and women in the early twentieth century and today.  相似文献   
32.
33.
In 2007, the Bureau of Justice Statistics reported on 2004 data collected from the Census of Medical Examiner and Coroner Offices (CMEC). The CMEC was one of the first comprehensive reports on the state of the medicolegal death investigation system in the United States and included information on administration, expenditure, workload, specialized death investigations, records and evidence retention, and resources. However, the report did not include responses on questions that were related to toxicology such as specimen retention and type of testing. The purpose of this publication is to provide the community with toxicology laboratory-specific responses from nearly 2000 medical examiner and coroner (MEC) offices. Data obtained from a BJS CMEC public use dataset for any remaining information that was not reported in the 2007 BJS report were evaluated specific to the operation of toxicology laboratories within a MEC office or specific to toxicology testing. The CMEC includes information on average operating budget for MEC offices with internal or external toxicology services, budget for toxicology/microbiology services, respondents’ routine uses of toxicology analysis, toxicology specimen retention time, average turnaround times, use of computerized information management systems, and participation in federal data collections. These historical data begin to address the present state of our nation’s toxicology laboratories within the medicolegal death investigation system and their preparedness for the current drug overdose epidemic.  相似文献   
34.
35.
36.
37.
38.
39.
40.
Comparing skeletal structures between antemortem and postmortem chest radiographs is widely used by forensic specialists from many disciplines to positively identify unknown decedents. However, validity assessments of this method have been fairly limited. This study had three objectives: 1) to quantify the reliability of ante- and postmortem chest radiograph comparison for decedent identification; 2) to identify useful radiologic features supporting decedent identification; and 3) to recognize sources of error in decedent identification related to use of comparative radiographs. A forensic pathologist, a forensic anthropologist, and two radiologists participated in the study. Our results showed that chest radiograph comparisons proved reliable, if basic decedent information was provided, and antemortem and postmortem radiographs were adequately positioned and exposed. A "morphological approach" using normal anatomical structures for comparison may provide the most efficient method for accurate identification.  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