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   1448篇
  免费   65篇
各国政治   58篇
工人农民   72篇
世界政治   226篇
外交国际关系   126篇
法律   672篇
中国共产党   1篇
中国政治   17篇
政治理论   333篇
综合类   8篇
  2023年   4篇
  2022年   5篇
  2021年   8篇
  2020年   13篇
  2019年   24篇
  2018年   47篇
  2017年   50篇
  2016年   49篇
  2015年   31篇
  2014年   47篇
  2013年   232篇
  2012年   58篇
  2011年   65篇
  2010年   49篇
  2009年   45篇
  2008年   56篇
  2007年   75篇
  2006年   75篇
  2005年   66篇
  2004年   55篇
  2003年   57篇
  2002年   53篇
  2001年   25篇
  2000年   23篇
  1999年   28篇
  1998年   14篇
  1997年   9篇
  1996年   13篇
  1995年   11篇
  1994年   25篇
  1993年   13篇
  1992年   10篇
  1991年   19篇
  1990年   13篇
  1989年   11篇
  1988年   14篇
  1987年   7篇
  1986年   12篇
  1985年   8篇
  1984年   6篇
  1983年   10篇
  1982年   8篇
  1981年   9篇
  1980年   11篇
  1979年   8篇
  1978年   6篇
  1977年   11篇
  1976年   5篇
  1975年   5篇
  1968年   3篇
排序方式: 共有1513条查询结果,搜索用时 218 毫秒
931.
Child–parent violence (CPV) is arguably the most under-researched form of family violence, despite an extremely high rate of occurrence and increasing prevalence. Prior research has been plagued by shortcomings including, but not limited to, a reliance on small clinical samples, age parameter restrictions, antiquated data, undefined parental relationships, and conflicting findings across studies. The current research examined a large cross-national sample of reported offenders (n = 17,957), collected as part of the 2002 National Incident Based Reporting System (NIBRS). Extrapolated from past literature, victim and offender demographics and incident characteristics are analyzed using chi-square tests and logistic regression to establish baseline findings from a more comprehensive sample of data than previously existed. Aggregate results suggest, in part, that white biological mothers older than 40 years of age are most likely to be victimized by their male children 14–17 years of age. Further, a majority of assaults involve personal weapons and tend to result in minor injury or no injury with very few offenders under the influence of alcohol or drugs. This work both corroborates and contrasts past finding of CPV research providing new insights into this complex crime and the baseline data needed to inform theory and test hypotheses.
Jeffrey A. WalshEmail:
  相似文献   
932.
In Filartiga v. Pena-Irala (1980), the Second Circuit Court of Appeals ruled that victims of human rights violations could sue their oppressors civilly in US courts under an eighteenth century law now called the Alien Tort Claims Act (ATCA). Controversy raged over the Filartiga decision and the proper interpretation of the ATCA for 24 years. Then in Sosa v. Alvarez-Machain (2004), the Supreme Court issued its first ATCA decision. This essay analyzes the effect of the Sosa decision on the development of human rights law in US courts. I find that while the federal judiciary is responding to some of the Supreme Court’s directives, lower courts still retain a great deal of discretion in handling ATCA cases.
Jeffrey DavisEmail:
  相似文献   
933.
934.
Commercial fisheries represent a significant anthropogenic threat to marine mammal survival. Causes of marine mammal mortality are commonly determined by detailed necropsies of stranded carcasses. Gross evidence of entanglement in a fishery might include gear attached to the body, internal indications of asphyxiation and trauma, or gear markings on the epidermis. As gear is often fishery-specific, wound patterns on the epidermis that are created by entanglements in fishing gear may serve to identify possible sources of mortality. For this study, tools within the Environmental Systems Research Institute, Inc. (ESRI) ArcMap GIS software were used to create maps that outline impressions that fishing gear can leave on the epidermis of entangled marine mammals. These maps can subsequently be used to identify possible sources of fishery entanglement for the many marine mammals that wash ashore without gear attached to their carcass. Entanglement wound patterns can be visually compared with fishing gear characteristics; however, differences in scale and image quality can introduce subjectivity that might hinder source identification. The technique described herein provides an objective way to outline the unique characteristics of fishing gear and their associated wounds on entangled marine mammals. Additionally, spatial relationships are preserved as the maps are adjusted to varying scales. Whereas the initial protocol required time-consuming digitization of the outline and visual determination of the pattern interface, this new, semiautomated technique saves analyst effort and minimizes error.  相似文献   
935.
Three studies examined procedures for reducing the post-identification feedback effect. After viewing a video event, participants were then asked to identify a suspect from a target-absent photo lineup. After making their identification, some participants were given information suggesting that their identification was correct, while others were given no information about the accuracy of their identification. Some participants who received confirming feedback were also given reasons to entertain suspicion regarding the motives of the lineup administrator, either immediately (Experiment 1) or after a one-week retention interval (Experiment 2). Suspicious perceivers failed to demonstrate the confidence inflation effects typically associated with confirming post-identification feedback. In Experiment 3, the confidence prophylactic effect was tested both immediately and after a one-week retention interval. The effect of confidence prophylactic varied with retention interval such that it eliminated the effects of post-identification feedback immediately but not after a retention interval. However, the suspicion manipulation eliminated the post-identification feedback effects at both time intervals. Both theoretical and practical implications are discussed.  相似文献   
936.
Psychiatric advance directives (PADs) are intended to support patients' treatment decisions during a crisis. However, PAD statutes give clinicians broad discretion over whether to carry out patients' advance instructions. This study uses data from a survey of psychiatrists (N=164) to examine reasons for overriding PADs. In response to a hypothetical vignette, 47% of psychiatrists indicated that they would override a valid, competently-executed PAD that refused hospitalization and medication. PAD override was more likely among psychiatrists who worked in hospital emergency departments; those who were concerned about patients' violence risk and lack of insight; and those who were legally defensive. PAD override was less likely among participants who believed that involuntary treatment is largely unnecessary in a high-quality mental health system.  相似文献   
937.

Purpose

The current study examines the stability of the risk-seeking component of self-control using a second-order latent class growth model.

Methods

Longitudinal data from 962 respondents from the NLSY79-Child and Young Adult sample are used to examine the stability of the risk-seeking component of self-control from ages 14 to 23.

Results

Data reveal three trajectories of risk-seeking (low, moderate, and high) that maintain strong relative stability from adolescence through early adulthood. Further, two trajectories of risk-seeking (moderate and high) maintain absolute stability, whereas the low risk-seeking group exhibits statistically significant decreases in risk-seeking over time.

Conclusions

The SOLCGA may provide a stricter test of the stability hypothesis since it accounts for measurement error in the construct prior to estimating the developmental trajectories. The results from the SOLCGA support Gottfredson and Hirschi's hypotheses that self-control will remain stable from adolescence into emerging adulthood.  相似文献   
938.
This study assessed the importance of sex, race/ethnicity, and geographic context for incidents of school-associated student homicides between July 1, 1994 and June 30, 1999, covering 5 academic years. Using data from the Centers for Disease Control and Prevention School Associated Violent Deaths Study (n = 125 incidents), we compared percentages and medians of victim, offender, motive, and school characteristics for incidents by geographic context and race/ethnicity of the offenders. Most incidents involved urban areas (53.6%), Black and Latino offenders and victims, moderately high youth poverty, and male on male violence (77.6%) driven by disputes and gang-related motives. Suburban area incidents (31.2%) often involved offenders and victims of a different race/ethnicity (51.3%). Multiple victims and White offenders were more common in rural areas (15.2%). More than 50% of the rural incidents involved male offenders and female victims. White offender incidents more often included multiple victims and female victims while Black and Latino offenders more often included single victims of the same sex. These results emphasize the utility of an incident-based analysis of school-associated student homicides in highlighting important variations by intersections of sex, race/ethnicity, and geographic context.  相似文献   
939.
We report the results of a study designed to assess and evaluate how the law shapes the public health system's preparedness activities. Based on 144 qualitative interviews conducted in nine states, we used a model that compared the objective legal environment with how practitioners perceived the laws. Most local public health and emergency management professionals relied on what they perceived the legal environment to be rather than on an adequate understanding of the objective legal requirements. Major reasons for the gap include the lack of legal training for local practitioners and the difficulty of obtaining clarification and consistent legal advice regarding public health preparedness. Narrowing the gap would most likely improve preparedness outcomes. We conclude that there are serious deficiencies in legal preparedness that can undermine effective responses to public health emergencies. Correcting the lack of legal knowledge, coupled with eliminating delays in resolving legal issues and questions during public health emergencies, could have measurable consequences on reducing morbidity and mortality.  相似文献   
940.
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