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   745篇
  免费   32篇
各国政治   47篇
工人农民   55篇
世界政治   86篇
外交国际关系   39篇
法律   446篇
中国政治   3篇
政治理论   101篇
  2023年   6篇
  2022年   5篇
  2021年   16篇
  2020年   20篇
  2019年   22篇
  2018年   35篇
  2017年   49篇
  2016年   47篇
  2015年   28篇
  2014年   34篇
  2013年   93篇
  2012年   38篇
  2011年   19篇
  2010年   15篇
  2009年   21篇
  2008年   30篇
  2007年   36篇
  2006年   25篇
  2005年   24篇
  2004年   29篇
  2003年   21篇
  2002年   27篇
  2001年   25篇
  2000年   9篇
  1999年   9篇
  1998年   3篇
  1997年   5篇
  1996年   4篇
  1993年   4篇
  1992年   4篇
  1991年   5篇
  1990年   7篇
  1989年   8篇
  1988年   4篇
  1987年   5篇
  1984年   3篇
  1983年   3篇
  1981年   1篇
  1979年   4篇
  1978年   1篇
  1977年   1篇
  1976年   1篇
  1975年   1篇
  1974年   1篇
  1973年   7篇
  1972年   5篇
  1971年   10篇
  1970年   1篇
  1966年   1篇
  1965年   1篇
排序方式: 共有777条查询结果,搜索用时 31 毫秒
721.
722.
723.
724.
Accidental asphyxia related to cars has been described in different reports, but suicidal hanging in an automobile is very unusual. Two cases of suicidal hanging inside an automobile are described, illustrating an unusual form of hanging. In one case, the deceased used his belt as a ligature, and the point of attachment was the window of the car. The second victim used the safety belt of the passenger seat. In both cases, the automobile engine was turned off, all the windows were closed, and the door locks were blocked. The medicolegal cause of hanging was based on the scene of the investigation, police and witness reports, social history, autopsy findings, and toxicologic examinations.  相似文献   
725.
726.
Researchers have not investigated mental health outcomes among couples who are reciprocally violent towards each other. The present study investigated differences in partner violence (psychological, physical, and sexual) and mental health symptoms (depression, anxiety, hostility, and somatic) between two types of reciprocally violent couples: situational couple violence (SCV) and mutual control violence (MVC). SCV couples use violence to address stressful family conflicts, while MVC couples use violence as a tool to control each other. Participants (N = 609) completed surveys that contained several instruments that measured past violence, coercive behaviors, physical injuries, and mental health symptoms. Results revealed that MVC reported significantly higher levels of violent perpetration and worse physical and mental health than SCV. These findings have implications for understanding the role of coercion in partner violence and mental health, which can be used for the development of appropriate mental health services for couples who are mutually violent towards each other.  相似文献   
727.
In this paper, we test the effect of three different criminal deterrence theory policy tools: criminal certainty, severity, and celerity of punishment. Whereas most criminal deterrence studies in this field focus on the former two components of deterrence theory, this study also examines the potential deterrent effect of the latter component. Using a time-series design with monthly data, we estimate the effects of an increase in the threat of punishment for traffic offenses resulting from a general increase in fines for traffic offenses, an increase in the probability of getting caught with a blood-alcohol concentration (BAC) level outside the legal limits, and the enactment of an “on-the-spot” fine payment policy in Portugal. We find strong evidence to support a severity effect. An increase in the statutory severity of sentence maxima for traffic violations leads to a decrease in accident and injury rates—approximately an average 0.5 percent reduction in monthly accident and injury rates. Changes in the BAC levels and the mandatory swift payment policy did not produce any convincing deterrence impact.
Cláudia S. CostaEmail:
  相似文献   
728.
Hanging is one of the most frequent methods for suicides among young males. This report presents two cases of suicide by hanging on pylons carrying high-voltage power lines. The male victims suffered electrocution while committing suicide. Electrocution was the cause of death in both cases, however in one case blunt force injuries from hanging contributed to death. In these two cases hanging was the intentional method of suicide and it was followed by electrocution. The cases demonstrate that scene investigation, a detailed autopsy with histology, and amamnestic data are essential in the evaluation of suicides by hanging and that the determination of the cause of death remains a challenge in investigating such cases.  相似文献   
729.
Allele frequency distributions and population data for 12 Y-chromosomal short tandem repeats (STRs) included in the PowerPlex®Y Systems (Promega) were obtained for a sample of 200 healthy unrelated males living in São Paulo State (Southeast of Brazil). A total of 192 haplotypes were identified, of which 184 were unique and 8 were found in 2 individuals. The average gene diversity of the 12 Y-STR was 0.6746 and the haplotype diversity was 0.9996. Pairwise analysis confirmed that our population is more similar with the Italy, North Portugal and Spain, being more distant of the Japan.  相似文献   
730.
This study seeks to (a) identify and measure the lifetime exposure to community violence of 137 African American and Latino middle school students from a low income neighborhood and apply numerical weights to each violent event; (b) examine the relationship between the objective severity of child self reported violence exposure and the child's subjective perception of the most bothersome event; and (c) examine the relationship between child's exposure and posttraumatic stress disorder (PTSD). Results highlight that students' designation of their most bothersome exposure to community violence did not correspond to the most severe violent event they experienced. Regression analyses reveal the weight of the most severe event explains a larger percentage of the variance in PTSD compared with the relationship to victim, level of exposure, weight of the most bothersome exposure, and cumulative weight of all exposure. This study underscores the importance of assessing a child's perception of violent events.  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