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   1497篇
  免费   48篇
各国政治   109篇
工人农民   83篇
世界政治   164篇
外交国际关系   78篇
法律   716篇
中国政治   5篇
政治理论   374篇
综合类   16篇
  2023年   14篇
  2022年   7篇
  2021年   9篇
  2020年   20篇
  2019年   35篇
  2018年   38篇
  2017年   48篇
  2016年   57篇
  2015年   27篇
  2014年   52篇
  2013年   231篇
  2012年   43篇
  2011年   40篇
  2010年   24篇
  2009年   44篇
  2008年   52篇
  2007年   46篇
  2006年   26篇
  2005年   38篇
  2004年   48篇
  2003年   39篇
  2002年   36篇
  2001年   48篇
  2000年   54篇
  1999年   32篇
  1998年   22篇
  1997年   23篇
  1996年   14篇
  1995年   14篇
  1994年   19篇
  1993年   16篇
  1992年   21篇
  1991年   33篇
  1990年   30篇
  1989年   24篇
  1988年   22篇
  1987年   20篇
  1986年   15篇
  1985年   18篇
  1984年   17篇
  1983年   15篇
  1982年   14篇
  1981年   7篇
  1980年   8篇
  1979年   14篇
  1976年   10篇
  1975年   6篇
  1974年   6篇
  1973年   9篇
  1972年   7篇
排序方式: 共有1545条查询结果,搜索用时 8 毫秒
101.
The influence of crime among the elderly was investigated in this study. The study suggests that crime prevention programs among the elderly should be implemented with some reservations. Since the risks of criminal victimization are low among the elderly, it may not be possible to reduce those rates much further, even with elaborate security programs for the elderly. On the contrary, raising the salience of crime by placing great emphasis on preventive behavior may well foster social isolation among the elderly.  相似文献   
102.
103.
104.
This article reports an evaluation of a community intellectual disability offender service over the period from 1990 to 2001. Men who committed sex offenses or sexually abusive incidents (n = 106) and men who committed other types of offenses and serious incidents (n = 78) are compared on personal characteristics, referral sources, forensic details, and outcome up to 7 years after referral. The cohorts are older than one would expect from the criminology literature, and, at about 33%, the incidence of mental illness is consistent with some previous studies. A greater proportion of sex offenders had criminal justice involvement and a formal disposal from court. Fire raising was not overly represented as an offense. There was a higher rate of reoffending in the nonsexual cohort, which persisted up to 7 years. Investigating only reoffenders, there was a considerable amount of harm reduction recorded up to 7 years, statistically significant up to 5 years following initial referral.  相似文献   
105.
Women who seek medical care following sexual assault are usually evaluated and treated in an emergency department (ED). Therefore, EDs can be an important source of sexual assault surveillance data. The authors compared the incidence of sexual assault presenting for emergency care in a single county during July to November of 1974 and 1991. Participants included all female sexual assault victims aged 14 and older who presented for ED evaluation. Treating physicians prospectively collected data using standardized forms. The z statistic was used to compare sexual assault incidence. There was a 60% increase in the incidence of sexual assault victims presenting for emergency care in 1991 compared to 1974, primarily due to an increase in the incidence of women presenting to the ED after rapes by known assailants. In contrast, the annual incidence of reported stranger assaults was similar in the two study years.  相似文献   
106.
This article examines the rights of patients, particularly incompetent patients, in long-term care facilities to refuse psychotropic medication. In exploring this topic, the author focuses on the provisions of the Omnibus Budget Reconciliation Act of 1987 which was part of a Congressional solution to afford greater protection to residents of long-term care facilities. Because the legislation has not lived up to expectations, the author advocates for further legislative action to protect the dwindling bundle of rights of the elderly.  相似文献   
107.
Shame, Rage and Racist Violence   总被引:1,自引:0,他引:1  
  相似文献   
108.
Reticuline (a precursor of opium alkaloids) was detected and characterised as its trimethylsilyl ethers, acetyl esters and methyl ethers by GC-EIMS and GC-CIMS in opium and the urine of opium users after hydrolysis by acid or beta-glucuronidase as coextractive of morphine. Because this compound cannot be detected in heroin and poppy seeds, it is suggested as a differentiating marker between opium and heroin use, opium and poppy seeds use, or opium and "pharmaceutical" codeine use in cases when opiate use has been confirmed by detection of morphine and codeine in the urine. As well as being a constituent of opium, reticuline in the urine of opium users may also result from the metabolic demethylation of the three other benzyltetrahydroisoquinoline opium alkaloids: codamine, laudanosine and laudanine.  相似文献   
109.
110.
Suffocation by inhaled gases has been reported involving a variety of gases. We report a case of suicidal asphyxiation by forced replacement of oxygen with helium by using a complex homemade mask. In this case, a young woman researched suicide on the Internet and found an advocated method of suicide using helium. To our knowledge, there is only 1 previously reported case of suicidal asphyxia by using helium.  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