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101.
Tshaiya Devi Thandauthapani Adam J. Reeve Adam S. Long Ian J. Turner James S. Sharp 《Science & justice》2018,58(6):405-414
Fingermarks are a key form of physical evidence for identifying persons of interest and linking them to the scene of a crime. Visualising latent (hidden) fingermarks can be difficult and the correct choice of techniques is essential to develop and preserve any fingermarks or other (e.g. DNA) evidence that might be present. Metal surfaces (stainless steel in particular) have proven to be challenging substrates from which to reliably obtain fingermarks. This is a great cause for concern among police forces around the globe as many of the firearms, knives and other metal weapons used in violent crime are potentially valuable sources of fingermark evidence. In this study, a highly sensitive and non-destructive surface science technique called time of flight secondary ion mass spectroscopy (ToF-SIMS) was used to image fingermarks on metal surfaces. This technique was compared to a conventional superglue based fuming technique that was accompanied by a series of contrast enhancing dyes (basic yellow 40 (BY40), crystal violet (CV) and sudan black (SB)) on three different metal surfaces. The conventional techniques showed little to no evidence of fingermarks being present on the metal surfaces after a few days. However, ToF-SIMS revealed fingermarks on the same and similar substrates with an exceptional level of detail. The ToF-SIMS images demonstrated clear ridge definition as well as detail about sweat pore position and shape. All structures were found to persist for over 26?days after deposition when the samples were stored under ambient conditions. 相似文献
102.
This article examines developmental trends in the rates of different kinds of victimization across the span of childhood. The Developmental Victimization Survey was a national telephone survey of the victimization experiences of 2,030 children from ages 2 to 17. The overall mean number of victimizations during a single year increased with age, as did the percentage of children with polyvictimizations (4 or more different kinds of victimization). However, some specific types of victimization, physical bullying and sibling assaults, were highest prior to adolescence and then declined. Other types had different developmental patterns by gender. Peer assaults increased in adolescence for boys but not for girls. Child maltreatment and sexual victimization increased in adolescence for girls but not for boys. The complex and diverse patterns of developmental vulnerability to different kinds of victimization at different ages need more exploration and explanation in order to better target prevention and intervention policies. 相似文献
103.
Mark M. Turner 《公共行政管理与发展》1989,9(1):17-28
Despite much training in public administration over the past 20 years there has been little improvement in public service management in the Third World. This was anticipated in Schaffer's critical notion of ‘trainingism’. This concept, when applied to Papua New Guinea, helps us to understand why training has been unable to produce dramatic changes in public service performance. Training has been used to perform latent functions and has not been evaluated. The situation is currently under review as new initiatives are taking place to improve training's contribution to public service efficiency and effectiveness. 相似文献
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Vivian L. Gadsden Stanton E. F. Wortham Herbert M. Turner III 《Family Court Review》2003,41(3):381-399
Young, low-income, African American fathers have been at the center of research, practice, and policy on families over the past decade. This article uses a "voicing" analytic technique to examine identities among young, low-income, African American fathers living in an urban setting; the intersections of these identities; and the fathers' perceptions of the influences of familial, peer, and legal systems as barriers and resources in their development as fathers and the sustainability of their fathering roles. The primary questions addressed urban fathers' representations of their transition to fatherhood, intergenerational relationships, transformative events, and visions of a possible self. Results from a survey, focus groups, and interviews suggest that the fathers seek to reinvent themselves and reconstruct their identities by separating from street life, redefine home as a place of stability, and challenge the practices of social and legal systems that appear to work against their responsible fathering. 相似文献
106.
Ian Turner 《Electoral Studies》1983,2(2):131-147
This study is concerned with two electoral laws introduced in Lower Saxony for local government elections: the first post-war law (1946) introduced by the British occupation authorities, and the most recent (1977) law, the product of the CDU-FDP coalition in Lower Saxony, used for the 1981 local government elections. The background to each of these laws is presented, with emphasis on their political context and the goals sought by the authorities of the time. The article then examines the actual effects of each law, and explores some of the unintentional effects that emerged. The conclusion sets the problem of electoral-system innovation in the wider context of the relationship between electoral change and political behaviour. 相似文献
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