全文获取类型
收费全文 | 88篇 |
免费 | 1篇 |
专业分类
工人农民 | 7篇 |
世界政治 | 7篇 |
法律 | 57篇 |
政治理论 | 18篇 |
出版年
2021年 | 1篇 |
2020年 | 3篇 |
2019年 | 1篇 |
2018年 | 2篇 |
2016年 | 2篇 |
2015年 | 2篇 |
2014年 | 2篇 |
2013年 | 10篇 |
2012年 | 3篇 |
2011年 | 1篇 |
2010年 | 4篇 |
2009年 | 2篇 |
2007年 | 5篇 |
2006年 | 2篇 |
2005年 | 2篇 |
2004年 | 1篇 |
2003年 | 2篇 |
2002年 | 2篇 |
2001年 | 1篇 |
2000年 | 2篇 |
1998年 | 1篇 |
1997年 | 2篇 |
1995年 | 2篇 |
1992年 | 1篇 |
1991年 | 3篇 |
1989年 | 3篇 |
1988年 | 5篇 |
1986年 | 1篇 |
1985年 | 3篇 |
1983年 | 1篇 |
1982年 | 1篇 |
1981年 | 1篇 |
1980年 | 1篇 |
1979年 | 3篇 |
1978年 | 3篇 |
1977年 | 1篇 |
1976年 | 1篇 |
1975年 | 1篇 |
1973年 | 2篇 |
1970年 | 1篇 |
1967年 | 2篇 |
排序方式: 共有89条查询结果,搜索用时 15 毫秒
31.
S R Sherman 《Social security bulletin》1988,51(3):8, 68-8, 69
32.
33.
Our understanding of causality and effect size in randomized field experiments is challenged by variations in levels of baseline treatment dosage in control groups across experiments testing similar treatments. The clearest design is to compare treated cases with no-treatment controls in a sample that lacks any prior treatment at baseline. We applied that strategy in a randomized test of hot-spots police patrols on the previously never-patrolled, track-level platforms of the London Underground (LU). In a pretest–posttest, control-group design, we randomly assigned 57 of the LU's 115 highest crime platforms to receive foot patrol by officers in 15-minute doses, 4 times per day, during 8-hour shifts on 4 days a week for 6 months. The effect of 23,272 police arrivals at the treatment hot spots over 26 weeks was to reduce public calls for service by 21 percent on treated platforms relative to controls, primarily when police were absent (97 percent of the measured effect). This effect was six times larger than the mean standardized effect size found in the leading systematic review. This finding provides a benchmark against the baseline counterfactual of no patrol in hot spots, with strong evidence of residual deterrence and no evidence of local displacement. 相似文献
34.
Milad Webb M.D. Ph.D. Sarah S. Sherman Ph.D. LokMan Sung M.D. Carl J. Schmidt M.D. Leigh Hlavaty M.D. 《Journal of forensic sciences》2020,65(6):2023-2029
Pediatric thoracolumbar fractures are rare due to the physiological differences which afford greater resilience to the immature spine. Most pediatric thoracolumbar fractures occur as the result of high energy trauma, such as motor vehicle accidents, and modes of reasonable accidental injuries are limited by age and developmental capabilities of the child. These fractures can occur as the result of inflicted blunt force trauma and child abuse, and in most cases, the mechanism of injury to the spine is not known. We report the death of a 29-month-old man due to blunt force trauma to the back and forced hyperextension of the thoracolumbar spine causing fracture of the fourth lumbar (L4) vertebral body. A complete forensic examination revealed a previous healing fracture of the anterior aspect of the L4 vertebral body, with acute disruption of the anterior longitudinal ligament overlying the fracture site, complete fracture of the vertebral body, and fatal retroperitoneal hemorrhage. We present a review of the biomechanical considerations of the pediatric spine, a survey of pediatric spinal fractures, and a review of the literature on pediatric abusive thoracolumbar fractures. In this case, there was never a provided explanation for how the injury occurred; however, understanding the biomechanics of the pediatric spine allowed for the determination of the mechanism, force required to produce this specific pattern of abusive spinal injury, and the manner of death. 相似文献
35.
36.
37.
38.
39.
A developmental scheme has been proposed which recognizes clusters of variables of adolescent behavior in the area of heterosexual object relationship development. These periods-(I) stage of sexual awakening (13–15), (II) stage of practicing (14–17), (III) stage of acceptance (16–19), (IV) stage of permanent object choice (18–25)-reflect the developing capacity of object relationship and are a a recapitulation on a higher level of functioning of the separation-individuation operations of the infant. The dating patterns at these levels of development provide a sensitive indication of growth, and unworked-through development is reflected in immature patterns. The current trends in dating described are considered to be a function of the prolongation of adolescence and not pathological.Graduate of the Chicago Medical School, psychiatric training at The University of Michigan Neuropsychiatric Institute and the Institute for Juvenile Research, Chicago. Major interests research in child and adolescent development and the affective disorders.Graduate of Woman's Medical College, Philadelphia. Psychiatric training at the Menninger Foundation and the Psychosomatic and Psychiatric Institute, Michael Reese Hospital, Chicago. Pediatric training at the University of Iowa Hospitals. Current interest child development. 相似文献
40.
Caroline M. Angel Lawrence W. Sherman Heather Strang Barak Ariel Sarah Bennett Nova Inkpen Anne Keane Therese S. Richmond 《Journal of Experimental Criminology》2014,10(3):291-307