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251.
Laser desorption mass spectrometry (LDMS) is useful for the direct desorption and MS analysis of dyes off materials such as paper. Here it is shown that staining dyes, produced by currency degradation devices, such as those used by financial institutions or armored transport companies, can be detected by LDMS. These staining dye packs are commonly used in bank security programs to deter theft or unauthorized removal of currency from teller stations or from ATM cash cassettes. Working automatically, these technologies release a security dye to degrade the surface of the notes and possibly mark the assailant involved in the attack. These dyes can be characterized and identified directly from paper currency, and from fabrics, and uniquely identified in the presence of other dyes that are used in the printing and dying of such materials, by LDMS. In these experiments, no extraction step is required. A pulsed UV laser directly irradiates a paper or fabric sample--colorants are desorbed, ionized and detected using time-of-flight MS. Results shown here suggest that dyes such as Basic Red 1:1 and Basic Violet 11:1 are used in such devices. 相似文献
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253.
Two extra-legal factors were examined for their influence on professionals' decisions to report child abuse: having been abused as a child oneself, and the gender of the child, the parent, and the professional. One hundred and one men and women who worked regularly with children in mental health settings rated a series of scenarios presented as cases from a protective service agency. Participants made several judgments regarding the case including the severity of the parent's behavior, the likely effect on the child, whether the situation was abusive, and whether the case should be reported to a social service agency. Despite some interpretive limitations, the results generally support the hypothesis that extra-legal factors influence the perceptions of professionals who are mandated to report a suspected incident of abuse. 相似文献
254.
In 1996 Robert Goodin and Hans-Dieter Klingemann published an edited collection of essays, A New Handbook of Political Science , that provides probably the best overview of the discipline of political science, at least as seen through the eyes of the mainstream of the profession. Goodin is an American working at the Australian National University, while Klingemann is a German working in Berlin. Nevertheless, their overview represents an American view of political science, which is hardly surprising as more than 75 per cent of living political scientists are American. Overall, they present a picture of the discipline as professional, pluralistic and improving rapidly. Here, we take issue with that view, not as an ambition, but as a reality. In contrast, we argue that political science, particularly US political science, is still dominated by a positivist epistemology and, particularly, by behaviouralist and rational choice approaches that are underpinned by that positivism. We begin by outlining Goodin and Klingemann's argument and critiquing it. Subsequently, we take issue with them empirically, using evidence drawn both from their own edited collection and an analysis of the contents of the two foremost US and UK journals; in the US the American Political Science Review , the American Political Science Association's main journal, and the American Journal of Political Science , and in the UK the British Journal of Political Science and Political Studies , the Political Studies Association's main journal. The methodology adopted is discussed below. In the last section, we consider the consequence of our findings for the future of political science in Britain. 相似文献
255.
Nicky Marsh 《Feminist Review(on-Line)》2003,74(1):70-80
This paper locates the work and critical reception of the experimental poet Lyn Hejinian within the emerging debates of ‘third-wave’ feminist critique. It centrally argues that Hejinian's writing at once illuminates and undermines the apparent tensions between a feminist and an anti-foundationalist critical position. It specifically focuses on Hejinian's use of autobiography, as at once gesturing to the limitations of the theoretically naive self-knowing subject, steeped in the discredited assumptions of modernity, and the continuing cultural validity of and desire for narrative, identification, self-expression and referentiality. The paper argues that Hejinian's writing makes sense of this equivocation, not through its use of feminized tropes assumed to subvert the linear assumptions of the genre and render the reader ‘active’, but through an attention to the ironical complexities of her own cultural positioning. Hejinian's writing demonstrates how the representation of the postmodern feminist subject involves an attention to authoriality, to the possibilities of textual experimentation and to the cultural sites that legitimize the production of meaning for these things. Hejinian demonstrates not simply that feminism can reconcile a need for agency with a critique of agency, and that such an act needs to consider its collective implications, but that these kinds of claims actually require an engagement with the varied contexts that continue to make feminist's attention to literature meaningful. 相似文献
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With prisons in the UK reaching full capacity, and with similar trends in other European countries and the USA, there is much
political debate about the efficacy of prison and community sentences. This paper aims to inform this debate by testing the
hypothesis that prisons are an effective and efficient way of reducing re-offending. A rapid review of effectiveness studies
was performed to determine the relative impact of prison and community sentences on re-offending. An economic analysis was
undertaken to transform the estimates of effect into estimates of the economic efficiency of alternative sentencing options
in the context of the UK. When compared with standard prison sentences, a number of community-based interventions and enhancements
of standard prison sentences were found to save money, both for the public sector and for society more broadly. Diverting
adult offenders from standard prison sentences to alternative interventions saves the UK public sector between £19,000 and
£88,000 per offender. When victim costs are considered, diverting offenders from standard prison sentences saves UK society
between £17,500 and £203,000 per offender. It was concluded that standard prison sentences are not an economically efficient
means for reducing re-offending.
Kevin Marsh Kevin Marsh is head of economics at The Matrix Knowledge Group (TMKG), London. He completed his Ph.D. in Economics at the University of Bath, UK, specialising in monetary techniques for valuing environmental resources. Following a year at the Social Disadvantage Research Centre, Oxford University, Kevin joined TMKG in 2003. His research interests include the economic evaluation of public policy, in particular criminal justice and public health interventions. Chris Fox Chris Fox is a Principal Lecturer in Criminology at Manchester Metropolitan University, Manchester, UK. He specialises in evaluations of social policy, with a particular focus on criminal justice and crime reduction. He is Joint Editor of Safer Communities, a journal for crime reduction and community justice practitioners. He is a trustee of Community Service Volunteers (CSV), the UK's largest volunteering and training organisation. 相似文献
Kevin MarshEmail: |
Kevin Marsh Kevin Marsh is head of economics at The Matrix Knowledge Group (TMKG), London. He completed his Ph.D. in Economics at the University of Bath, UK, specialising in monetary techniques for valuing environmental resources. Following a year at the Social Disadvantage Research Centre, Oxford University, Kevin joined TMKG in 2003. His research interests include the economic evaluation of public policy, in particular criminal justice and public health interventions. Chris Fox Chris Fox is a Principal Lecturer in Criminology at Manchester Metropolitan University, Manchester, UK. He specialises in evaluations of social policy, with a particular focus on criminal justice and crime reduction. He is Joint Editor of Safer Communities, a journal for crime reduction and community justice practitioners. He is a trustee of Community Service Volunteers (CSV), the UK's largest volunteering and training organisation. 相似文献
258.
Davia T. Hudson Ph.D. Allison M. Curran Ph.D. Kenneth G. Furton Ph.D. 《Journal of forensic sciences》2009,54(6):1270-1277
Abstract: Human scent evidence collected from objects at a crime scene is used for scent discrimination with specially trained canines. Storage of the scent evidence is usually required yet no optimized storage protocol has been determined. Storage containers including glass, polyethylene, and aluminized pouches were evaluated to determine the optimal medium for storing human scent evidence of which glass was determined to be the optimal storage matrix. Hand odor samples were collected on three different sorbent materials, sealed in glass vials and subjected to different storage environments including room temperature, ?80°C conditions, dark storage, and UVA/UVB light exposure over a 7‐week period. Volatile organic compounds (VOCs) in the headspace of the samples were extracted and identified using solid‐phase micro‐extraction–gas chromatography/mass spectrometry (SPME–GC/MS). Three‐dimensional covariance mapping showed that glass containers subjected to minimal UVA/UVB light exposure provide the most stable environment for stored human scent samples. 相似文献
259.
260.
Meca Alan Allison Kelsie Kubilus Richie Olthuis Janine V. Merrill Jennifer E. Zamboanga Byron L. Wyrick David Milroy Jeffrey J. Carr Kyla 《Journal of youth and adolescence》2021,50(12):2363-2373
Journal of Youth and Adolescence - Although prior studies have indicated athletic identity plays a role in alcohol use among college athletes, this research has largely drawn on a unidimensional... 相似文献