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   332篇
  免费   13篇
各国政治   11篇
工人农民   58篇
世界政治   22篇
外交国际关系   10篇
法律   167篇
中国政治   11篇
政治理论   65篇
综合类   1篇
  2023年   4篇
  2022年   2篇
  2020年   12篇
  2019年   5篇
  2018年   10篇
  2017年   18篇
  2016年   20篇
  2015年   16篇
  2014年   18篇
  2013年   50篇
  2012年   17篇
  2011年   12篇
  2010年   10篇
  2009年   10篇
  2008年   12篇
  2007年   10篇
  2006年   8篇
  2005年   9篇
  2004年   8篇
  2003年   9篇
  2002年   8篇
  2001年   6篇
  2000年   10篇
  1999年   4篇
  1998年   8篇
  1997年   4篇
  1996年   3篇
  1995年   7篇
  1994年   2篇
  1993年   2篇
  1992年   6篇
  1991年   4篇
  1990年   2篇
  1989年   2篇
  1988年   1篇
  1987年   2篇
  1986年   3篇
  1985年   2篇
  1984年   1篇
  1983年   2篇
  1982年   3篇
  1981年   2篇
  1977年   1篇
排序方式: 共有345条查询结果,搜索用时 15 毫秒
221.
Fifteen test subjects, 10 of whom were diagnosed with gastroesophageal reflux disease (GERD), were dosed with alcohol to BACs above 0.150 g/dL. Blood and breath assays taken at 20-min intervals for 8 h after dosing demonstrated close agreement between postabsorptive BAC and BrAC values. Three subjects exhibited elevated breath alcohol concentrations up to 0.105 g/dL during the absorptive phase that were apparently due to the passage of gastric alcohol through the lower esophageal sphincter not attributable to eruction or regurgitation. The effect of gastric alcohol was not consistently proportional to the amount of unabsorbed gastric alcohol. Absorption of alcohol in the esophagus explains the nonproportionality. Breath samples contaminated by GERD-related alcohol leakage from the stomach into a breath sample were found only when there was a high concentration of alcohol in the stomach. When contaminated breath samples were encountered, they were irreproducible in magnitude.  相似文献   
222.
This article presents the preliminary outcomes of a 6-month, in-home trauma-adapted neglect prevention program intended to reduce trauma-related risk factors in families and increase caregiver, child, and family well-being. Standardized measures were administered via a computer assisted self-interview (CASI) at intake and case closure. At the time of the analyses 72 caregivers and 105 children completed both an intake and closing CASI. Significant differences were found over time in the reduction of caregiver and child related post-traumatic stress (PTS) symptomatology. Outcomes in overall caregiver, child, and family well-being and safety significantly improved over time. Evidence suggests that trauma adaptation of the empirically supported neglect prevention program shows great promise in filling a service gap and in helping families who are chronically traumatized and struggling to meet their children's basic needs.  相似文献   
223.
During the Second World War Harbin was a major city in the puppet-state ofManzhouguo, the industrial heart of the Japanese war effort in East Asia.The Garden of Grand Vision was a flophouse complex located in the Chineseslums of Harbin. The 2,000 drug addicts, gamblers and prostitutes who madethe Garden their home were mostly migrants from North China who had fallenon hard times. In 1940 the Japanese police conducted a detailed survey oflife in the Garden, portraying it as a swamp of disorder and immorality.In contrast, this paper describes the residents of the Garden as theyvaliantly participated in a vigorous underground economy and arranged theirlives for survival.  相似文献   
224.
225.
226.
227.
228.
Tougher sanctions for drunk driving have often been advocated as a means to reduce this problematic behavior. In a test of administrative per se laws as a specific deterrent, the impact of introducing such laws is evaluated by examining reconviction rates of offenders before and after implementation of the Jaw in three states (North Dakota, Louisiana, and Mississippi), with comparisons made to a fourth state during the same time period that did not implement an administrative per se law (California). Recidivism is analyzed using survival models. The results indicate that administrative per se laws reduce rates of reconviction in some situations but not in others. In particular, if implementation of the law is accompanied by changes in overall rates of license actions, the specific deterrent effects of the law may be outweighed by the increased efficiencies of this judicial process.  相似文献   
229.
230.
Despite research on the effects of intimate partner violence (IPV) on children, little is known about its impact on cognitive development. In this study, 87 preschool-aged children and their mothers exposed to IPV within the last two years participated in interviews to ascertain verbal ability, history of violence, and exposure to trauma. When compared to a national sample of 1,700 same-age children not evaluated for exposure to traumatic events, children exposed to IPV scored significantly lower on verbal ability, as assessed with standardized measures. In order to understand variation in verbal ability, multiple regression models were tested. Both prior exposure to traumatic events and the level of mother’s education were significant predictors of verbal ability. However, level of education mediated the relationship between traumatic events and the child’s verbal ability.  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