全文获取类型
收费全文 | 1897篇 |
免费 | 96篇 |
专业分类
各国政治 | 166篇 |
工人农民 | 64篇 |
世界政治 | 194篇 |
外交国际关系 | 163篇 |
法律 | 755篇 |
中国政治 | 22篇 |
政治理论 | 607篇 |
综合类 | 22篇 |
出版年
2023年 | 10篇 |
2022年 | 6篇 |
2021年 | 16篇 |
2020年 | 34篇 |
2019年 | 59篇 |
2018年 | 55篇 |
2017年 | 73篇 |
2016年 | 98篇 |
2015年 | 56篇 |
2014年 | 70篇 |
2013年 | 336篇 |
2012年 | 59篇 |
2011年 | 53篇 |
2010年 | 58篇 |
2009年 | 66篇 |
2008年 | 67篇 |
2007年 | 78篇 |
2006年 | 79篇 |
2005年 | 69篇 |
2004年 | 52篇 |
2003年 | 71篇 |
2002年 | 66篇 |
2001年 | 34篇 |
2000年 | 49篇 |
1999年 | 33篇 |
1998年 | 48篇 |
1997年 | 29篇 |
1996年 | 32篇 |
1995年 | 31篇 |
1994年 | 22篇 |
1993年 | 15篇 |
1992年 | 21篇 |
1991年 | 7篇 |
1990年 | 20篇 |
1989年 | 6篇 |
1988年 | 22篇 |
1987年 | 15篇 |
1986年 | 5篇 |
1984年 | 8篇 |
1983年 | 7篇 |
1982年 | 7篇 |
1981年 | 7篇 |
1980年 | 5篇 |
1979年 | 9篇 |
1978年 | 3篇 |
1977年 | 7篇 |
1975年 | 3篇 |
1970年 | 3篇 |
1965年 | 2篇 |
1964年 | 2篇 |
排序方式: 共有1993条查询结果,搜索用时 15 毫秒
831.
832.
833.
834.
835.
836.
837.
Extracorporeal membrane oxygenation (ECMO) employs vascular cannulation and a gas exchange circuit to provide support to patients with severely compromised cardiopulmonary function. ECMO is often the last intervention taken before death and thus presents a unique challenge to medical examiners. This study describes the characteristics of decedents on ECMO at the time of death, including clinical indications, types of circuit configurations, causes and manners of death, gross findings at autopsy, and therapeutic complications. Files of a regional medical examiner office within an academic medical center were searched for the period between 2013 and 2019. Nineteen cases were identified with a median age of 36 years. The circumstances surrounding the initial presentation included: sudden death, trauma, substance abuse, homicide, therapeutic complication, work-related injury, drowning, and hypothermia. The underlying causes of death included injury-related, as well as respiratory and cardiac-related natural diseases. The time spent on ECMO varied from less than 1 h to 10 months. Complications encountered due to ECMO included cannulation site bleeding, pneumohemopericardium, retroperitoneal hematoma, limb ischemia, clotting, and cannula dislodgement. The patient population likely to receive ECMO has significant overlap with death circumstances likely to be reported to the medical examiner. As ECMO therapy has become increasingly available, it is of importance for medical examiners and death investigators to be familiar with the procedure as well as its limitations. Familiarity with ECMO and its sequelae allows for the proper documentation of postmortem findings and fosters an informed determination of the cause and manner of death. 相似文献
838.
839.
Andrew Graham Lynda Lyness 《Canadian public administration. Administration publique du Canada》2004,47(1):116-117
Eugene Bardach, Getting Agencies to Work Together: The Practice and Theory of Managerial Craftsmanship. Washington, D.C.: Brookings Institution Press, 1998. Pp. xi, 338, bibliographical references, index. 相似文献
840.