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   543篇
  免费   23篇
各国政治   41篇
工人农民   61篇
世界政治   64篇
外交国际关系   42篇
法律   240篇
中国政治   2篇
政治理论   112篇
综合类   4篇
  2023年   7篇
  2022年   5篇
  2021年   9篇
  2020年   13篇
  2019年   29篇
  2018年   26篇
  2017年   33篇
  2016年   22篇
  2015年   25篇
  2014年   21篇
  2013年   70篇
  2012年   23篇
  2011年   19篇
  2010年   18篇
  2009年   17篇
  2008年   14篇
  2007年   17篇
  2006年   25篇
  2005年   16篇
  2004年   19篇
  2003年   14篇
  2002年   12篇
  2001年   10篇
  2000年   9篇
  1999年   11篇
  1998年   8篇
  1997年   10篇
  1996年   6篇
  1995年   5篇
  1994年   6篇
  1993年   7篇
  1992年   5篇
  1991年   3篇
  1989年   1篇
  1988年   3篇
  1987年   3篇
  1986年   3篇
  1985年   2篇
  1984年   2篇
  1983年   1篇
  1982年   1篇
  1981年   5篇
  1980年   1篇
  1979年   3篇
  1977年   2篇
  1976年   1篇
  1974年   1篇
  1972年   1篇
  1971年   1篇
  1970年   1篇
排序方式: 共有566条查询结果,搜索用时 450 毫秒
71.
ABSTRACT

Disciplinary incidents at U.S. public middle- and high-schools are a public policy concern. Although businesses popularly give credence to leaders’ subjective intelligence, principals’ reports of their schools’ strengths and weaknesses are questioned. To determine whether principals’ reports carry legitimacy as indicators of student offenses, the current study utilized a nationally representative survey of principals who reported on their sense of the institution and the number of disciplinary incidents in the past year (N = 1,872; replication cohort, N = 1,833). Findings showed that the more institutional shortcomings a principal endorsed, the higher total number of incidents occurred, even after controlling for institutional strength and several indicators of school crime. These findings have policy and intervention implications for improving student outcomes, and so would be of interest to funding agencies, school administrators, teachers, and parents.  相似文献   
72.
73.
74.
School is regarded as a central arena for crime prevention. This study analyses the effects of student perceptions of school contextual aspects on self-reported offending, using logistic regression with control for clustering effects. The data comprise a census of pupils in year nine in comprehensive school (15 year olds) and in year two of upper secondary school (17 year olds) in the City of Stockholm in 2006, 2008 and 2010 (n = 25,850 of which 47% are boys and 53% are girls). Besides showing that several aspects of students’ perceptions of the school setting have direct protective effects on offending, the study shows that perceiving schoolwork as meaningful appears to moderate the effect of adverse home conditions on delinquency for boys. The only aspect of school investigated in this study that was not significantly related to offending was the perception of classroom order, indicating that emotional support from teachers is more important for crime preventive implications than maintaining order in the classroom. Controlling for clustering effects shows differences in offending between classes and schools that are not produced by differences between the students.  相似文献   
75.
This study examines neuropsychological impairment in women who have experienced intimate partner violence using DSM 5 criteria for mild and severe cognitive impairment. A total of 108 females in Spain were included in one of three groups: psychological abuse (n = 24), physical and psychological abuse (n = 45), and no-abuse (n = 39). There were differences between the control and IPV groups in attention and executive functioning. Furthermore, approximately 25% of women experiencing IPV suffer mild neuropsychological alterations and 5% severe, mostly in memory and executive function domains. This evidence supports the growth in research that suggests psychological violence on its own to be as strongly related to poor health outcomes as physical violence in intimate partner relationships.  相似文献   
76.
77.
Despite broad consensus that most juvenile crimes are committed with peers, many questions regarding developmental and individual differences in criminal style (i.e., co-offending vs. solo offending) remain unanswered. Using prospective 3-year longitudinal data from 937 14- to 17-year-old serious male offenders, the present study investigates whether youths tend to offend alone, in groups, or a combination of the two; whether these patterns change with age; and whether youths who engage in a particular style share distinguishing characteristics. Trajectory analyses examining criminal styles over age revealed that, while most youth evinced both types of offending, two distinct groups emerged: an increasingly solo offender trajectory (83%); and a mixed style offender trajectory (17%). Alternate analyses revealed (5.5%) exclusively solo offenders (i.e., only committed solo offenses over 3 years). There were no significant differences between groups in individuals?? reported number of friends, quality of friendships, or extraversion. However, the increasingly solo and exclusively solo offenders reported more psychosocial maturity, lower rates of anxiety, fewer psychopathic traits, less gang involvement and less self reported offending than mixed style offenders. Findings suggest that increasingly and exclusively solo offenders are not loners, as they are sometimes portrayed, and that exclusively solo offending during adolescence, while rare and previously misunderstood, may not be a risk factor in and of itself.  相似文献   
78.
The high prevalence of alprazolam abuse translates to an increased workload for crime laboratories in characterizing seized tablets. These tablets may originate as diverted pharmaceuticals or counterfeited mimics, so efficient analytical techniques should provide confirmatory data while minimizing destruction of evidence. We offer the first report of a validated forensic method for confirming alprazolam tablets by direct analysis in real time-time of flight (DART-TOF) mass spectrometric analysis. This technique provides rapid identification of target analytes with minimal sample preparation, allowing direct analysis in the atmospheric sample gap. Selectivity is achieved through high resolution and mass accuracy, unique ion fragments, and chlorine isotopic ratios. This method utilizes fragmentation in two separate voltage functions to observe the alprazolam pseudo molecular ion at 309.09070 using 40 V and major ion fragments of 281.07197 and 205.07657 at 120 V. These parameters allow our laboratory to confirm alprazolam tablets efficiently, without compromising quality forensic standards.  相似文献   
79.
Though the “old conventional wisdom” explained delay as the product of too few resources and staff, the “new conventional wisdom” posits court efficiency is largely due to the cultural makeup of the court. Adapting the Court Culture Assessment Instrument developed by Dr. Ostrom and colleagues at the National Center for State Courts, this research study examines judicial perceptions of culture in the Kentucky Court of Justice general and family circuit court. Results indicate circuit courts are predominantly autonomous but desire to be more structured (hierarchical). In addition, bivariate analyses showed a significant, but weak, inverse relationship exists between perceptions of a predominantly hierarchical culture orientation and the presence of delay. In other words, judges who perceived their circuit to be predominantly hierarchical in nature were less likely to perceive delay as a problem.  相似文献   
80.
The study aimed to determine the clinical characteristics of fatal methamphetamine‐related stroke in Australia, 2009–2015. There were 38 cases, 60.5% male, with a mean age of 40.3 years. In no case was there evidence that this was the first time methamphetamine had been used by the decedent, and 52.6% had known histories of injecting drug use. The stroke was hemorrhagic in 37 of 38 cases. In 21.1% of cases, the stroke was purely parenchymal and, in 18.4%, involved purely the subarachnoid space. A ruptured berry aneurysm was present in 31.6% and in 68.8% of initial subarachnoid hemorrhages. There was evidence of systemic hypertension in 8 of 25 cases in which full autopsy findings were available. With increased use of methamphetamine, there is a high probability of increased hemorrhagic stroke incidence among young people. In cases of fatal hemorrhagic stroke among young cases presenting to autopsy, the possibility of methamphetamine use should be borne in mind.  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