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Julie Butler M.S.F.S. Janet Chaseling B.S.A.S. Kirsty Wright Ph.D. 《Journal of forensic sciences》2019,64(6):1838-1843
Detection of blood on dark materials is difficult for crime scene examiners so presumptive tests are used to assist. This study compared the ability of luminol, leuko crystal violet, tetramethylbenzidine, and Combur Test®E to detect whole, diluted blood (1:100) and a key‐shaped blood transfer stain (1:10), on dark cotton sheeting, tea towel, socks, synthetic carpet, and car mats. Powdered bleach was used to evaluate specificity of the blood detection tests. Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and overall misclassification rate (OMR) assessed the quality of the blood tests. Luminol was the preferred test for diluted blood having the highest sensitivity (79%–96%), NPV (66%–93%), and the lowest OMR (3%–15%). Luminol was also found to be most efficient with a testing time on 25 items of 2 h 50 min compared with up to 8 h. Overall, luminol was the most effective method, also providing information on bloodstain patterns. 相似文献
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This summary relates to the consultation held at St George's House, in Windsor, England, on February 2018. The attendees came from across Europe and from the United States, and they discussed a range of initiatives designed to address the challenges in modern family justice and the changes in the social, political, and economic environments that are impacting family life across the globe. Although the challenges are very similar, the approach to resolving them varies from jurisdiction to jurisdiction. The attendees concluded that there is much we can learn from each other, and that greater cooperation between family justice professionals across geographic boundaries would be highly beneficial. 相似文献
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Early sexual behaviors during adolescence have the potential to lead to unhealthy outcomes. This study explored the association
between specific dimensions of maternal relationship quality and adolescent sexual debut by age 15. We hypothesized that adolescents
who have poor maternal relationships are at greater risk of early sexual debut than those who have a more supportive relationship.
These hypotheses were examined using both adolescents’ perception of their maternal relationship quality and observed relationship
quality. A sample of 268 adolescents (142 girls; 90% European American) were followed longitudinally from age 13 to age 15.
The results indicate that adolescents with sexual debut by age 15 report significantly worse relationships with their mothers
compared with other adolescents. Furthermore, behavioral observations of lower maternal support and higher observed displays
of externalizing affect towards the mother also were related to early sexual debut. The significance of maternal relationship
quality remained after controlling for family structure, race, and socioeconomic status. These findings suggest that mothers
have a significant role in the timing of their adolescents’ sexual debut. 相似文献
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James Bradley Rebecca Kippen Hamish Maxwell-Stewart Janet McCalman Sandra Silcot 《The History of the Family》2010,15(4):503-477
This paper describes the multidisciplinary project Founders and Survivors: Australian Life Courses in Historical Context. Individual life courses, families and generations through the nineteenth and twentieth centuries are being reconstituted from a wide range of data including convict records; birth, death and marriage registrations; and World War I service records. The project will result in a longitudinal study of Australian settlement, the long-run effects of forced labour and emigration on health and survival, family formation, intergenerational morbidity and mortality, and social and geographic mobility. 相似文献
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Deborah J. Hartley Mario A. Davila James W. Marquart Janet L. Mullings 《American Journal of Criminal Justice》2013,38(2):323-340
This study examined individual and work-level factors that impact job stress and satisfaction for correctional officers. Existing research has explored officer job stress and satisfaction, but very few studies have focused specifically on fear of contracting an infectious disease while at work (HIV/AIDS, hepatitis, and tuberculosis), and the impact fear of and exposure to infectious disease have on correctional officer job stress and satisfaction. Random sample data were collected from 2,999 male and female officers from across the state of Texas to assess job stress, satisfaction, personal safety, and exposure to infectious disease. Ordinary Least Squares analyses indicated that fear of disease was positively correlated with job stress, and inversely correlated with job satisfaction. Exposure to disease however, failed to yield any significant effects on job stress or satisfaction. Officers who felt that their supervisors were supportive of them on the job reported less stress and higher satisfaction levels, while perceived dangerousness of the job was positively correlated with job stress. These findings highlight the importance of supervisory support as well as continuous, in-depth education and training on infectious diseases for officers. 相似文献
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