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   884篇
  免费   42篇
各国政治   74篇
工人农民   127篇
世界政治   69篇
外交国际关系   37篇
法律   371篇
中国政治   8篇
政治理论   237篇
综合类   3篇
  2023年   3篇
  2022年   3篇
  2020年   16篇
  2019年   28篇
  2018年   37篇
  2017年   41篇
  2016年   26篇
  2015年   23篇
  2014年   39篇
  2013年   139篇
  2012年   27篇
  2011年   38篇
  2010年   18篇
  2009年   25篇
  2008年   39篇
  2007年   36篇
  2006年   46篇
  2005年   34篇
  2004年   42篇
  2003年   34篇
  2002年   39篇
  2001年   11篇
  2000年   11篇
  1999年   11篇
  1998年   11篇
  1997年   11篇
  1996年   8篇
  1995年   10篇
  1994年   13篇
  1993年   10篇
  1992年   9篇
  1991年   7篇
  1990年   6篇
  1989年   5篇
  1988年   5篇
  1987年   8篇
  1986年   4篇
  1985年   10篇
  1984年   4篇
  1983年   5篇
  1982年   4篇
  1981年   4篇
  1980年   5篇
  1979年   3篇
  1977年   4篇
  1976年   2篇
  1975年   3篇
  1974年   2篇
  1969年   2篇
  1956年   1篇
排序方式: 共有926条查询结果,搜索用时 0 毫秒
921.
922.
Homicide-suicide is a rare event compared to suicide and homicide alone. A comparison of the statistical figures of two studies for Hamburg (1950-1961 and 1990-2005) shows a significant development within the last 40 years: the total number of homicide-suicides committed by women has decreased considerably, probably due to a better medical and psychiatric care and greater economic independence, whereas the number of male perpetrators has remained constant. However, these perpetrators are younger now. As far as the methods are concerned, shooting is now the most common means of killing instead of poisoning by coal gas in former days.  相似文献   
923.
924.
In response to recent and past medical malpractice insurance crises, most states have implemented reforms meant to stabilize premiums and coverage availability. The importance of understanding whether these reforms implicitly affect the behavior and incentives of plaintiffs, attorneys, medical providers, and malpractice insurers in the intended way is crucial to policy makers, if they are to achieve their goal. This study specifically examines the effect of reforms on the claims defense efforts of insurers, given that defense expenses account for approximately 30 percent of malpractice premiums. Using state data for the period 1998-2002, we regress claims defense expenses against a variety of reform variables. These include seven tort reforms (noneconomic damage caps, punitive damage limits, attorney fee limits, modified collateral source rule, modified joint and several liability doctrine, mandatory pretrial screening, and statute of limitations) and two government-sponsored insurance mechanisms (joint underwriting associations and patient compensation funds). Claims defense expenses are found to be higher in the presence of noneconomic damage caps, punitive damage limits, and attorney fee limits--an unintended and counterproductive effect of reform--but are lower with mandatory pretrial screening and patient compensation funds.  相似文献   
925.
This study consisted of three parts to evaluate the performance of Lumicyano? on a variety of fabrics. One part assessed the impact of dye percentage (8%, 9% and 10%) on visualisation of fingermark detail and luminescent brightness in split grab marks. A 9% dye produced the highest quality detail of grab impressions with least interference from background fluorescence. The second part investigated the optimal relative humidity (RH, 75–84%) for certain fabric types using Lumicyano on split, six-series depletion fingermarks. It was concluded that the recommended RH of 80% remained the ideal cyanoacrylate fuming environment. The final and third part of this study determined the impact of sequential addition of Basic Yellow 40 (BY40) on Lumicyano compared to traditional cyanoacrylate (CA) followed with BY40 application. Results from this study demonstrated that Lumicyano on its own developed fingermarks with superior quality to Lumicyano with sequential addition of BY40 or traditional cyanoacrylate followed by BY40. Inclusion of more fabrics, donors and longer ageing periods should be explored in future studies to determine what frameworks are best for certain types of fabrics.  相似文献   
926.
Juan Solanas's 2005 film Nordeste/Northeast problematised maternity by presenting two female characters who conform to cultural or trans-cultural norms of the Global North and South and personify the narratives of transnational trade. As Lynn M. Morgan and Elizabeth F. S. Roberts argue, ‘reproductive governance’ is a useful analytical tool for understanding how political rationalities affect the reproductive lives of women in Latin America and globally. Reproductive governance can also be used as a lens to analyse how contradictions and ambivalences are built into the lived experience of abortion and adoption as the complexity of maternity.  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