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81.
Ayşegül Erdoğan Ph.D. Meral Esen Ph.D. Robin Simpson Ph.D. 《Journal of forensic sciences》2020,65(5):1730-1735
X-ray photoelectron spectroscopy (XPS) is a widely used technique to characterize the surface chemistry of materials. It plays a crucial role in accessing qualitative and quantitative information and in detecting the presence of chemical functional groups on the surface of any material. The forensic methods available to detect and identify elements and organic/inorganic compounds are often destructive, so evidence cannot be re-analyzed. However, XPS allows rapid analysis of samples without damaging them. Recently, an increasing number of forensic researchers have begun to study certain chemical information on fingermarks. In this study, the authors aimed to present the applicability and power of XPS imaging in fingermark analysis which can also provide specific information about the fingermark chemical composition. Herein, monochromated X-ray (Al Kα) spot size was fixed at 50 μm. XPS mapping resulted in the acquisition of spectra at each pixel, in an array of 41 × 30 pixels with a step size of 50 μm. Then, a simple discussion has been made about how the scanned surface spectrum and basic snapshot spectra are used to identify different components at a fingertip of a scanned surface area (~3 mm2). Hence, a fingermark pattern contaminated with caffeine, TiO2, and Pb/PbO deposited on the silicon wafer can be chemically mapped and visualized by XPS using principal component analysis (PCA). Thus, the present study showed the possible applicability of XPS for the identification of illicit drugs of abuse, gunshot residue, and skin care products on latent fingermark by mimicking a crime scene evidence. 相似文献
82.
Paul Vedder John Berry Colette Sabatier David Sam 《Journal of youth and adolescence》2009,38(5):642-653
Correspondence in value orientation between parents and their offspring may be due to actual transmission processes between
generations, but it may also be due to influences from the general value context in society that are common to parents and
their offspring. This common value context is referred to as Zeitgeist. The present study deals with one family relationship
value (i.e., parents’ and adolescents’ obligations toward the family). Participants were 1,252 immigrant and 726 national
adolescent–parent dyads from 10 Western countries. There were significant relationships between the value placed on family
obligations among parents and offspring, and these were independent of gender. Zeitgeist effects, both intergenerational and
intragenerational, were found. The strength of these Zeitgeist effects depended on the basis for defining Zeitgeist, either
a person’s own ethnic group or the wider community including both nationals and immigrants. For explaining national adolescents’
acceptance of their family obligations, both the ethnic and the national Zeitgeist played a role, whereas in the immigrant
groups only the ethnic Zeitgeist played a significant role. In short, in an immigration context it makes sense to distinguish
the influence of a person’s own ethnic group from the influence of the wider community, including other ethnic groups. Explanations
are suggested and implications are discussed.
相似文献
Paul VedderEmail: |
83.
This research analyzes the individual-level factors associated with public support for the private provision of public goods and services. Given that privatization requires the transfer of authority from public to private entities, we argue that beliefs about private companies are an important and overlooked source of heterogeneity in explaining public policy preferences toward privatization. We test this expectation using survey data from the 2014 Cooperative Congressional Election Study. We find that support for privatization is associated with positive beliefs about the motivation of private companies and with favorable views about corporate accountability relative to the accountability of government. Opposition to privatization is associated with beliefs about corporate influence in politics. Preferences for limited government are also associated with support for privatization. These results highlight the potential for beliefs about private companies to serve as a group heuristic in political reasoning and the ability of citizens to make reasoned choices on complex public policy issues. 相似文献
84.
Paul Chaney 《欧亚研究》2018,70(4):638-665
AbstractThis study of lesbian, gay, bisexual and transgender rights in the Russian Federation uses frame analysis of civil society input into the UN Universal Periodic Review. It reveals a stark state–civil society ‘disconnect’ reflecting oppressive government practices, including Law No. 135-FZ on ‘non-traditional sexual relations’. This raises wider questions about the efficacy of the review system, not least because issues of performativity and legitimation can be seen to facilitate authoritarian resilience. This allows the ruling elite to continue to dissemble by espousing universal rights yet strategically framing them as heteronormative, integral to the protection of ‘traditional values’ and inimical to identity-based rights claims. 相似文献
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87.
Robin H. Lemaire Keith G. Provan Liesbeth Mercken Scott J. Leischow 《International Public Management Journal》2017,20(3):467-488
The research reported here is an analysis of the evolution of the relationships that comprise a single public health network, focusing especially on the position of the network administrative organization (Provan and Kenis 2008) in the flow of knowledge among a large number of organizations providing similar services. Our study examines the North American Quitline Consortium (NAQC), a multi-sector network that spans the US and Canada and whose members provide telephone-based tobacco cessation services to anyone interested in quitting smoking. Data were collected using web-based surveys at three different points of time. Implications are discussed for network organizing, for both theory and practice, focusing especially on the importance of the network administrative organization in shaping the evolution of the whole network information flow. 相似文献
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90.
This article explores the teaching and learning challenges for the discipline of international studies (IS) that arise from the contemporary social, economic, and political changes usually labeled "globalization." The focus is upon the challenge posed to IS by a transformation in the nature of the relationship of teachers and students to the subject matter that they study: that is, teachers and students increasingly experience and contribute to globalization in the course of their daily lives as they simultaneously teach and learn about it. Significantly for the study of globalization in IS, pedagogical debates surrounding active teaching and learning highlight the potential for strategies that actively engage students' interests and everyday experiences with the subject itself. On this basis, the article outlines some potential routes into the active teaching and learning of globalization in the field of international political economy, illustrating these with examples from classroom activities and exercises. 相似文献