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171.
When one looks at an automotive coating, one sees color due to pigments. Modern organic pigments, with high molar absorptivities, may be only minor components of the mixture. Laser desorption mass spectrometry (LDMS) has been shown to be a useful tool for the analysis of colorants such as pen ink dyes. Here, LDMS is used to determine its utility for the identification of pigments, in simple media and in more complex paints. Small paint chips can be introduced into the LDMS instrument, and when an ultraviolet laser is focused on a portion of a chip, ions representative of the pigment(s) are selectively formed. Some pigments such as quinacridones and copper phthalocyanine are very stable and are desorbed and ionized intact. In contrast, benzimidazolones, which contain some single-skeletal bonds, form fragment ions. This method proves to be sensitive and convenient, as no sample preparation is required. The presence of inorganic pigments in addition to modern organic pigments can be determined, and pigments can be directly identified in actual automotive paint chip samples. 相似文献
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Catherine M. Sabiston Chris Y. Lovato Rashid Ahmed Allison W. Pullman Valerie Hadd H. Sharon Campbell Candace Nykiforuk K. Stephen Brown 《Journal of youth and adolescence》2009,38(10):1374-1387
The purpose of this study was to explore individual- and school-level policy characteristics on student smoking behavior using
an ecological perspective. Participants were 24,213 (51% female) Grade 10–11 students from 81 schools in five Canadian provinces.
Data were collected using student self-report surveys, written policies collected from schools, interviews with school administrators,
and school property observations to assess multiple dimensions of the school tobacco policy. The multi-level modeling results
revealed that the school a student attended was associated with his/her smoking behavior. Individual-level variables that
were associated with student smoking included lower school connectedness, a greater number of family and friends who smoked,
higher perceptions of student smoking prevalence, lower perceptions of student smoking frequency, and stronger perceptions
of the school tobacco context. School-level variables associated with student smoking included weaker policy intention indicating
prohibition and assistance to overcome tobacco addiction, weaker policy implementation involving strategies for enforcement,
and a higher number of students smoking on school property. These findings suggest that the school environment is important
to tobacco control strategies, and that various policy dimensions have unique relationships to student smoking. School tobacco
policies should be part of a comprehensive approach to adolescent tobacco use. 相似文献
174.
Brent Snook Todd Barron Laura Fallon Saul M. Kassin Steven Kleinman Richard A. Leo Christian A. Meissner Lorca Morello Laura H. Nirider Allison D. Redlich James L. Trainum 《Legal and Criminological Psychology》2021,26(1):1-24
The current article presents a series of commentaries on urgent issues and prospects in reforming interrogation practices in Canada and the United States. Researchers and practitioners, who have devoted much of their careers to the field of police and intelligence interrogations, were asked to provide their insights on an area of interrogation research that they believe requires immediate attention. The submitted independent commentaries covered a variety of topics – from police recruitment, interrogation training, use of proper interrogation practices, and the treatment of confession evidence in court. Common concerns from the contributions pertained to the lag between scientific knowledge on interrogations and the application of such knowledge in the justice system, and the glaring disparity between the treatment of similar issues in the interrogation context versus other criminal justice contexts. A primary intent of this collection of commentaries is to serve as a resource pointing researchers in the direction of the fundamental areas that require immediate consideration and encouraging them to simultaneously pursue solutions to the overarching concerns that emerged from this project. 相似文献
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Allison M. Shelton 《Intelligence & National Security》2013,28(1):23-45
Despite some arguments to the contrary, I argue that because ethics benefit, rather than harm, the intelligence profession they should be considered an inherent part of intelligence studies. The literature largely presents intelligence ethics as a two-sided debate between teleologists and deontologists. I propose that ethical justifications should instead be considered along a progressive spectrum drawn from the work of moral psychologist Lawrence Kohlberg. Such a spectrum has numerous applications for gauging the moral arguments of individual practitioners of intelligence. I illustrate this using the dilemma of targeted political assassination – first in a hypothetical context, and finally using examples from the investigations of the 1975 Church Committee. 相似文献
177.
J.W.F. Allison 《The Journal of legal history》2013,34(3):263-282
This article addresses the diminution of historical understanding in English constitutional law by reconsidering Dicey's approach to history in his foundational work. It argues that Dicey's approach was inconsistent and unconvincing – separating a historical view of an evolving constitution from a legal view, discounting history's legal significance and nonetheless repeatedly evoking a whig history to enhance the appeal of the constitution's rules and principles. It recalls the features or deficiencies of whig history, famously characterised by Herbert Butterfield from a modern historical perspective. To Butterfield's characterisation it adds an elaboration on their constitutional significance and a neglected comparative dimension. From those features, it develops, in conclusion, methodological suggestions for a history that might yet serve constitutional legal purposes. 相似文献
178.
Lenore Behar Robert Friedman Allison Pinto Judith Katz‐Leavy Hon. William G. Jones 《Family Court Review》2007,45(3):399-413
Throughout the country, there is considerable inconsistency in how states regulate residential treatment programs for youth. In states with little oversight, the health and safety of youth are unprotected and they may be subject to substandard treatment, rights violations, and/or abuse. Three initiatives to address this issue are reported: (1) an Internet survey of youth who are former residents, (2) a four‐state pilot study of how states regulate and monitor residential programs, and (3) a bridge‐building conference between residential treatment providers and mental health leaders. Recommendations address the next steps for lawmakers, lawyers, judges, mental health and education professionals, and parents. 相似文献
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Allison D. Redlich Shawn D. Bushway Robert J. Norris 《Journal of Experimental Criminology》2016,12(4):537-561