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   757篇
  免费   28篇
各国政治   45篇
工人农民   115篇
世界政治   112篇
外交国际关系   33篇
法律   338篇
中国政治   8篇
政治理论   130篇
综合类   4篇
  2024年   3篇
  2023年   12篇
  2022年   5篇
  2021年   5篇
  2020年   21篇
  2019年   35篇
  2018年   16篇
  2017年   34篇
  2016年   38篇
  2015年   27篇
  2014年   24篇
  2013年   127篇
  2012年   24篇
  2011年   29篇
  2010年   20篇
  2009年   18篇
  2008年   42篇
  2007年   32篇
  2006年   30篇
  2005年   37篇
  2004年   24篇
  2003年   14篇
  2002年   14篇
  2001年   7篇
  2000年   12篇
  1999年   12篇
  1998年   15篇
  1997年   10篇
  1996年   11篇
  1995年   9篇
  1994年   10篇
  1993年   10篇
  1992年   8篇
  1991年   5篇
  1990年   5篇
  1989年   5篇
  1988年   3篇
  1987年   3篇
  1985年   8篇
  1984年   2篇
  1983年   4篇
  1981年   4篇
  1980年   1篇
  1979年   2篇
  1978年   1篇
  1977年   1篇
  1976年   1篇
  1973年   1篇
  1967年   1篇
  1966年   1篇
排序方式: 共有785条查询结果,搜索用时 0 毫秒
781.
Successful criminal or civil legal system response to assaults against intimate partners (intimate partner violence; IPV) usually rely on the victim’s participation in the legal process, including having contact with the prosecutor, filing charges, and/or applying for an order of personal protection. Using data abstracted from criminal and civil legal system records for a county-wide cohort of 990 female IPV victims over a 4-year period, we examine the impact of having children, and of specific child factors, on victims’ engagement with the criminal prosecution of their abusive partners and/or seeking a personal protection order (PPO) in the civil court system. Having children increased victim’s contact with the prosecutor and applications for PPOs, but did not increase her likelihood of wanting to file or drop charges. Findings support prior work suggesting both the importance and complexity of children on mothers’ decision-making. Policy makers and service providers may want to assess survivors’ thoughts about the role children play in their decision-making. Additionally, by offering survivors interventions to help their children address the impact of IPV exposure, survivors may be more willing to engage with services.  相似文献   
782.
In this study we explore the patent ownership for the innovations created by Canadian nanotechnology inventors. We find that although there is a great innovative potential and inventive productivity among Canadian researchers, a lot of the intellectual property actually leaves the country: Around 50% of the nanotechnology patents invented by Canadian inventors are owned by foreign assignees. We also note the predominance of private companies among the patent owners. Almost one-third of all the Canadian-invented nanotechnology patents is assigned to a single American firm, Xerox Corporation. Furthermore, we explore the role of Canadian nanotechnology star inventors. The results show that the fruits of their great inventive productivity are collected outside Canada.  相似文献   
783.
We reported on the death by poisoning of a one-month-old baby that had followed the death of one of her sister (due to cyamemazine overdose). Exhumation of the corpse was done 8 months after burial and revealed the presence of amitriptyline. Parent drug and its metabolite were analysed by HPLC-MS/MS in positive ionisation mode on a C(18) analytical column using a gradient of acetonitrile and 2mM formate buffer at pH=3. Quantification is based on the main ion m/z=233, the common product ion of nortriptyline (MH(+), m/z 264), amitriptyline (MH(+), m/z 278) and nortriptyline D3 used as internal standard (MH(+), m/z 267). Amitriptyline and nortriptyline in the liver were measured at a concentration of 29.8 and 3.6 μg/g, respectively. Hair analyses revealed the presence of amitriptyline and nortriptyline at concentrations of 1811 and 43 pg/mg, respectively, while complementary analyses showed the presence of bromazepam in the hair at a concentration of 740 pg/mg, thus documenting previous administrations. The mother confessed later having used the drinkable form of the pharmaceutical LAROXYL(?) by pouring the content of a 20 ml bottle (at 40 mg/ml) into the feeding-bottle of her child. The milk was sweet but still bitter and following the testimony of a close relative, the whole family helped to feed the crying baby.  相似文献   
784.
Two keys to avoiding potentially responsible party (PRP) status at future Superfund sites are to manage all waste with appropriate care and to perform appropriate inquiries into the history of new properties prior to acquisition. However, corporations can become PRPs because of their ownership and/or operation of historically contaminated property, their historical waste management practices, or their historical disposal of hazardous substances at nonowned disposal sites, such as landfills. This article describes a method by which insurance companies, waste producers, and property owners can proactively evaluate their potential liability associated with environmental response action costs at contaminated sites.  相似文献   
785.
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