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   2924篇
  免费   113篇
各国政治   238篇
工人农民   95篇
世界政治   296篇
外交国际关系   194篇
法律   1130篇
中国政治   13篇
政治理论   993篇
综合类   78篇
  2023年   10篇
  2022年   10篇
  2021年   23篇
  2020年   46篇
  2019年   55篇
  2018年   97篇
  2017年   84篇
  2016年   103篇
  2015年   59篇
  2014年   75篇
  2013年   451篇
  2012年   97篇
  2011年   99篇
  2010年   74篇
  2009年   83篇
  2008年   97篇
  2007年   117篇
  2006年   78篇
  2005年   105篇
  2004年   95篇
  2003年   75篇
  2002年   86篇
  2001年   77篇
  2000年   75篇
  1999年   58篇
  1998年   51篇
  1997年   49篇
  1996年   51篇
  1995年   44篇
  1994年   41篇
  1993年   36篇
  1992年   44篇
  1991年   47篇
  1990年   45篇
  1989年   42篇
  1988年   35篇
  1987年   20篇
  1986年   25篇
  1985年   25篇
  1984年   24篇
  1983年   22篇
  1982年   30篇
  1981年   38篇
  1980年   28篇
  1979年   13篇
  1978年   14篇
  1977年   11篇
  1975年   12篇
  1974年   12篇
  1967年   7篇
排序方式: 共有3037条查询结果,搜索用时 15 毫秒
981.
Periods in which the costs of personal injury litigation and liability insurance have risen dramatically have often provoked calls for reform of the tort system, and medical malpractice is no exception. One proposal for fundamental reform made during several of these volatile periods has been to relocate personal injury disputes from the tort system to an alternative, administrative forum. In the medical injury realm, a leading incarnation of such proposals in recent years has been the idea of establishing specialized administrative "health courts." Despite considerable stakeholder and policy-maker interest, administrative compensation proposals have tended to struggle for broad political acceptance. In this article, we consider the historical experience of administrative medical injury compensation proposals, particularly in light of comparative examples in the context of workplace injuries, automobile injuries, and vaccine injuries. We conclude by examining conditions that may facilitate or impede progress toward establishing demonstration projects of health courts.  相似文献   
982.
A previous study conducted in 1995 showed that psychoactive drug use by workers was higher in safety/security workstations than in the rest of the labour force. In order to verify this finding, we conducted a new study in 2003-2004 in the Nord-Pas-de-Calais region, restricted to truck drivers. The aim of this study was to allow harmonizing the professional practice of the occupational physicians, proposing drug prevention and drug testing policies, validating the analytical methods and the guidelines in case of positive testing results. One thousand truck drivers were studied. Urines were tested for amphetamines, cannabinoids, cocaine, opiates, benzodiazepines, buprenorphine and methadone by immunoassay. Urine ethanol determinations were performed by an ADH method. Positive urines for drugs of abuse, methadone or buprenorphine were then tested by gas chromatography or liquid chromatography coupled to mass spectrometry. Out of the 1000 drivers, cannabinoids were detected in 85 cases, opiates in 41 cases, amphetamines in 3 cases and cocaine in only one case. Buprenorphine was detected in 18 cases, methadone in 5 cases and benzodiazepines in 4 cases. Urine ethanol was positive in 50 cases. We found only one case with 6-monoacetylmorphine. Other positive opiates were metabolites of antitussives. The relatively low number of benzodiazepine positive urines could be explained by the lack of sensitivity of the test we used. All these results confirm those of the previous study for cannabinoids and ethanol in safety/security workstations. Positive results for methadone and buprenorphine are eight times higher than in the general population. In conclusion, the authors think that it will be of a great interest to test urine of truck drivers for other classes of psychoactive drugs, using a liquid chromatography-mass spectrometry method.  相似文献   
983.
In Person     
Paul Jones is with Jones & Co., a multi-lingual law firmin Toronto, Canada. He found time in his busy schedule to respondto questions posed by JIPLP. How did you first become interested in IP? I began as a commercial lawyer doing franchising, which ledto an interest in trade marks. Later I had a small client whowas threatened with litigation  相似文献   
984.
985.
986.
987.
988.
989.
The occupational stress of police officers, and its’ effect on working memory and other psychological and behavioral factors over a two-week work period have been investigated. Cognitive performance and stress levels were examined at pre and post work cycles by using a memory test and several self-reporting surveys, each designed for a specific purpose and to gauge a particular set of behaviors and personality traits. The police officers were assigned to patrol duties at the time of the investigation and placed into three groups based on years of service (1–20 years). The results of the investigation identified a deficit in working memory in Junior, Veteran, and Senior Officers, based on the Ray Osterreith Complex Figure Scores at Baseline (pre-stress) vs. Test Day (post-stress). The other survey tools measuring stress impact on personality and behavior, did not demonstrate any statistical differences in the responding groups of officers in their survey performances.  相似文献   
990.
Water privatization battles and their aftermath in seven Latin American, African, and Asian countries feature diverse and often complementary forms of action by unions, popular movements, neighbourhood associations, and non-governmental organizations (NGOs). NGOs cooperate with popular movements for water rights more than the literature would suggest, and after mobilizations against privatization, activists have had some success maintaining pressure for better service to poor neighbourhoods through advocacy and local self-provision arrangements. Public employees’ unions play important roles in water policy coalitions, often practising a distinctive form of social movement unionism. These experiences argue for a more flexible understanding of categories and organizational forms in civil society.  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