Fingermark detection on non-porous and semi-porous surfaces using YVO4:Er,Yb luminescent upconverting particles

This article describes the use of an anti-Stokes luminescent material (upconverter), yttrium vanadate doped with ytterbium and erbium (YVO(4):Er,Yb), for the development of latent fingermarks on a range of non-porous surfaces. Anti-Stokes luminescent materials emit light at shorter wavelengths than the excitation wavelength. This property is unusual in both natural and artificial materials commonly found as exhibits in forensic science casework. As a result, fingermark detection techniques based on anti-Stokes luminescence are potentially extremely sensitive and selective. Latent fingermarks on non-luminescent and inherently luminescent substrates, including Australian polymer banknotes (a well-known 'difficult' surface), were developed with YVO(4):Er,Yb by dry powder and wet powder techniques. The effectiveness of YVO(4):Er,Yb for fingermark detection was compared with that of cyanoacrylate fuming and of sodium yttrium tetrafluoride doped with ytterbium and erbium (NaYF(4):Er,Yb). The results illustrate some benefit of luminescent up-converting phosphors over traditional luminescence techniques for the detection of latent fingermarks.     

Significantly increased detection rate of drugs of abuse in urine following the introduction of new German driving licence re-granting guidelines

In this paper we present the first assessment of the new German driving licence re-granting medical and psychological assessment (MPA) guidelines by comparing over 3500 urine samples tested under the old MPA cut-offs to over 5000 samples tested under the new MPA cut-offs. Since the enzyme multiplied immunoassay technique (EMIT) technology used previously was not sensitive enough to screen for drugs at such low concentrations, as suggested by the new MPA guidelines, enzyme-linked immunosorbent assay (ELISA) screening kits were used to screen for the drugs of abuse at the new MPA cut-offs. The above comparison revealed significantly increased detection rates of drug use or exposure during the rehabilitation period as follows: 1.61, 2.33, 3.33, and 7 times higher for 11-nor-delta-9-tetrahydrocannabinol-9-carboxylic acid (THC-COOH), morphine, benzoylecgonine and amphetamine respectively. The present MPA guidelines seem to be more effective to detect non-abstinence from drugs of abuse and hence to detecting drivers who do not yet fulfil the MPA requirements to regain their revoked driving licence.     

Spousal Rejection as a Risk Factor for Parental Rejection of Children

Limited information is available about the international generalizability of the common conclusion that marital discord tends to be associated with problematic parenting. Pakistan is a sociocultural context known for a high frequency of marital distress. Accordingly, this study draws from a sample of 270 Pakistani families with children between the ages of 9 to 13 years (M?=?11.21 years). In this study we explore the question: Are Pakistani children’s perceptions of maternal and/or paternal rejection related to their parents’ perceptions of spousal rejection? Results of a hierarchical multiple regression analyses showed that wives’ perceptions of husbands’ rejection predicted children’s perceptions of maternal rejection, as well as—but to a significantly lesser extent—children’s perceptions of paternal rejection. Similarly, husbands’ perceptions of wives’ rejection predicted children’s perceptions of paternal rejection, as well as—but to a significantly lesser extent—children’s perceptions of maternal rejection. Results of this research, along with the slim body of prior international research, suggests that the concept of “spillover effect” used to explain the association between spousal rejection and parental rejection may have widespread international applicability.     

Impediments besetting the negotiations for a comprehensive Economic Partnership Agreement between the European Union and East and Southern Africa (2007–2014)

Several African, Caribbean and Pacific countries are currently negotiating World Trade Organization (WTO)-compatible reciprocal economic partnership agreements (EPAs) with the European Union (EU), agreements intended to supersede the one-sided trade preferences of the Lomé Convention. This study focuses on impediments which have bedevilled the EU–East and Southern Africa (ESA) negotiations for a transition from an interim EPA to a comprehensive EPA. These talks, which ran from 2007 to 2014, followed the expiry of a WTO waiver and the ESA's successful resistance to elements of the EU's agenda considered offensive, despite envisaged benefits provided for by the Cotonou Partnership Agreement of 2000 calling for EPAs. The study is based on qualitative primary research in which data from interviews was augmented by a synthesis of secondary sources and analysed through a thematic coding system. Findings reveal asymmetrical power relations, a marked heterogeneity in the ESA and outstanding issues in the interim EPA and WTO regulations as major impediments to the transition to a comprehensive EPA.     

Parenting factors,social skills,and value commitments as precursors to school failure,involvement with deviant peers,and delinquent behavior

Elements of social control theory were combined with social learning theory to construct a model of delinquency which specifies the manner in which parenting factors, social skills, value commitments, and problems in school contribute to association with deviant peers and involvement in delinquent behavior. The model was tested using a sample of 61 families, each of which included a seventh grader. Questionnaire responses and coded videotaped family interaction were employed as measures of study constructs. The results largely supported the proposed model.This work was supported by Research Grants DA 05347 from the National Institute on Drug Abuse, MH 43270 from the National Institute of Mental Health, and MCJ 190572 from the Bureau of Maternal and Child Health, Department of Health and Human Services.Received Ph.D. in sociology from Florida State University. Research interests: etiology of adolescent depression, substance abuse, and delinquency; identification of factors that influence parenting practices; causes and consequences of adolescent and adult homelessness.Received Ph.D. in sociology from Washington State University. Research interests: impact of family and peers upon adolescent value socialization, self-esteem, and perceptions of self-efficacy; street culture among adolescent runaways and adult homeless.Received Ph.D. in sociology from the University of Washington. Research interests: impacft of economic stress upon family dynamics, and relationship between parenting practices and adolescent developmental outcomes.Doctoral candidate in sociology at Iowa State University. Research interests: economic hardship and marital interaction, and determinants and consequences of variation in sibling interaction.     

Using Fuzzy Rule–Based Systems to Evaluate Overall Financial Performance of Governments: An Enhancement to the Bond Rating Process

Credit ratings remain a key feature of municipal debt management. The primary objective of this article is to develop a new methodology for evaluating the financial performance and creditworthiness of governments and to illustrate this approach for a sample of large American cities. Specifically, we develop a fuzzy rule–based system (FRBS) that uses economic, debt, and other financial information as well as a measure of financial management to produce rankings of city financial performance. The FRBS credit ratings are highly correlated with actual Moody's ratings for these cities. FRBS have the potential of enhancing the rating process by standardizing the information used and encouraging consistent rules about what combinations of inputs result in good, fair, or poor performance.     

Adaptive governance as a reform strategy

This article expands research on adaptive governance in natural resource and climate change policy into other policy areas and the larger context of reform. The purpose is to clarify adaptive governance as a reform strategy, one that builds on experience in a variety of emergent responses to the growing failures of scientific management, the established pattern of governance. Emergent responses in information technology, national security, development aid, and health care policy are reviewed here. In these cases, factoring a large national or international problem into many smaller problems, each more tractable scientifically and politically, opened additional opportunities for advancing common interests on the ground. The opportunities include simplification of research through intensive inquiry, participation in policy decisions by otherwise neglected groups, and selecting what works on the basis of practical experience rather than theory. What works can be improved incrementally in the context at hand, diffused through networks for voluntary adaptation elsewhere, and used to inform higher-level decisions from the bottom up. Adaptive governance is a promising strategy of reform. The open question is whether it will be used well enough to sustain a once-progressive evolution toward fuller realization of human dignity for all.