Hair analysis: self-reported use of "speed" and "ecstasy" compared with laboratory findings

Drug use histories were collected from 100 subjects recruited from the "dance scene" in and around Glasgow, Scotland. In addition, each subject donated a hair sample which was analyzed by gas chromatography/mass spectrometry (GC/MS) for amphetamine (AP), methamphetamine (MA), 3,4-methylenedioxyamphetamine (MDA), 3,4-methylenedioxymethamphetamine (MD MA) and 3,4-methylenedioxyethylamphetamine (MDEA). The hair samples were analyzed in two 6 cm segments or in full, ranging from 1.5 to 12 cm depending on the length of the hair. Approximately 10 mg of hair was ground to a fine powder before treatment with beta-glucuronidase/aryl sulfatase. A solid-phase extraction procedure was carried out followed by derivatization with pentafluoropropionic anhydride (PFPA). All extracts were analyzed by gas chromatography/mass spectrometry (GC/MS). Of the 139 segments analyzed, 77 (52.5%) were positive for at least one of the five amphetamines. The drug concentrations found in the hair were compared with the self-reported drug histories. A concordance of greater than 50% was found between the self-report data and levels detected in hair. However, no correlation was found between the reported number of "ecstasy" tablets consumed and the drug levels detected in hair. An increase in the average drug levels measured was observed from low to high use (number of "ecstasy" tablets/month). A large number of false negatives and a low number of false positives were observed.     

Resistance of degraded hair shafts to contaminant DNA

We have investigated the susceptibility of degraded human hair shaft samples to contamination by exogenous sources of DNA, including blood, saliva, skin cells, and purified DNA. The results indicate that on the whole hair shafts are either largely resistant to penetration by contaminant DNA, or extremely easy to successfully decontaminate. This pertains to samples that are both morphologically and biochemically degraded. We suggest that this resistance to the incorporation of contaminant DNA relates to the hydrophobic and impermeable nature of the keratin structures forming the hair shaft. Therefore, hair samples represent an important and underestimated source of DNA in both forensic and ancient DNA studies.     

Nonviolent offenders' and college students' attachment and social support behaviors: implications for counseling

This study examines the relationships between adult attachment orientations and the ability to seek social support as factors in mediating behavior. Data were collected on non violent offenders (n = 57) and college students (n = 89). The results indicated the non-normative group of nonviolent offenders reported being more securely attached and having more satisfaction with their social supports than the normative group of college students. Fewer college students reported being securely attached than the nonviolent offenders but had a larger number of social supports. In the insecure categories, nonviolent offenders reported being more dismissively attached whereas college students reported being preoccupied in their attachment orientation. The study suggests that attachment and social-support-seeking behaviors across different populations may be potential factors in designing counseling services that are used for risk classification and needs assessment.     

Policing on prime-time: A comparison of television and real-world policing

This paper provides an investigation of presentations of police and policing activities in two purposively selected contemporary prime-time entertainment justice shows and one reality-based justice show. With the exception of being portrayed as overly successful, television police were portrayed closely to real-life police in terms of their gender, racial composition, organization, tasks, role, and response to crime. As such, prime-time television may aid viewers in better understanding the role of police in American society by providing a basic orientation to police and police work through its mediated presentations. Further research is needed involving a more encompassing sample of prime-time justice shows for more generalizable conclusions to be asserted.     

Citizen-Centered Collaborative Public Management

Civic engagement and collaborative public management are concepts that are defined broadly, making theoretical explication challenging and practical application of empirical research difficult. In this article, the authors adopt definitions of civic engagement and collaborative public management that are centered on the citizen and the potential for active citizenship. Following a historical review of civic engagement in the United States, a conceptual model of five approaches to civic engagement is offered. Citizen-centered collaborative public management is enhanced through these approaches. The authors suggest the need for further empirical research on collaborative public management that is grounded in citizenship action.     

Gender issues in the interface of family experience and adolescents' friendship and dating identity

This study focuses on the role of family experience in adolescents' conception of the self in the context of friendship and dating relationships. Three issues are addressed: the extent of sex differences in adolescents' friendship and dating identity, how links between family experience and friendship and dating identity might differ for males and females, and whether mothers and fathers play distinctive roles in such development. A sample of Caucasian two-parent families, each including an adolescent who was a high school senior, was observed in a family interaction task designed to elicit the expression and coordination of a variety of points of view. Each adolescent was also given an interview assessing exploration and commitment in friendship and dating identity. Only one sex difference was found in identity, with females more committed in their conceptions of dating relationships than males. The key finding of the study concerns the distinctive patterns of family interaction associated with friendship and dating identity. For females, separateness in family interaction was related to their friendship identity exploration, whereas for males, the links between family interaction and exploration all involved connectedness. The different contingencies may reflect the interplay between different societal patterns of support and restriction of males' and females' exploration.This work was supported by grants from the National Institute of Child Health and Human Development (HD-92819 and HD-17983) and the Hogg Foundation for Mental Health and from the University Research Institute and the Institute of Human Development and Family Studies of the University of Texas at Austin.Received her Ph.D. in child psychology from the University of Minnesota. Research interests include the role of family and peer relationships in the development of individual and relational competence, and the interface of family, peer, and school contexts in the development of children and adolescents.Received his Ph.D. in child psychology from the University of Minnesota. Research interests include the role of the family in adolescent personality development and identity formation, career development, and adoptive family relationships.     

Quality of Laypersons' Assessment of Forensically Relevant Stimuli,

The current study examined the potential for cognitive bias in lay examiners' comparisons of footwear impressions within the technical review process while addressing limitations of previous research. Prior research has found inconsistent results regarding the extent to which cognitive bias may influence forensic comparisons, often asking non-experts to review forensic stimuli above their competency level. Furthermore, past research has largely ignored the potential for cognitive bias during the technical review process. In collaboration with the Miami-Dade Police Department's Forensic Services Bureau, we examined the effects of previous examiners' level of experience and prior knowledge of the previous examiner's decision on the technical review stage of footwear impression stimuli. Before lay examiners were presented with pairs of known match and nonmatch footwear impressions, they were either told that an expert or a novice had previously examined them and determined them to be either a match, nonmatch, or inconclusive (plus a no-information condition). Participants then evaluated each pair of footwear impressions to make their own determinations of match, nonmatch, or inconclusive. Results support the technical review process for all decision types, as known nonmatch stimuli were generally more difficult for lay examiners to assess than known match stimuli. Knowledge of a prior examiner's decision and status was observed only when the prior decision was inconclusive, suggesting the need for inclusion of inconclusive decisions in future research examining cognitive bias in forensic examination.     

Economic Sanctions and Political Repression: Assessing the Impact of Coercive Diplomacy on Political Freedoms

This article offers a thorough analysis of the unintended impact economic sanctions have on political repression—referred to in this study as the level of the government respect for democratic freedoms and human rights. We argue that economic coercion is a counterproductive policy tool that reduces the level of political freedoms in sanctioned countries. Instead of coercing the sanctioned regime into reforming itself, sanctions inadvertently enhance the regime’s coercive capacity and create incentives for the regime’s leadership to commit political repression. Cross-national time series data support our argument, confirming that the continued use of economic sanctions (even when aimed at promoting political liberalization and respect for human rights) will increase the level of political repression. These findings suggest that both scholars and policy makers should pay more attention to the externalities caused by economic coercion.

Psychological Symptoms Linking Exposure to Community Violence and Academic Functioning in African American Adolescents

African American adolescents are exposed disproportionately to community violence, increasing their risk for emotional and behavioral symptoms that can detract from learning and undermine academic outcomes. The present study examined whether aggressive behavior and depressive and anxious symptoms mediated the association between exposure to community violence and academic functioning, and if the indirect effects of community violence on academic functioning differed for boys and girls, in a community sample of urban African American adolescents (N = 491; 46.6 % female). Structural equation modeling was used to examine the indirect effect of exposure to community violence in grade 6 on grade 8 academic functioning. Results revealed that aggression in grade 7 mediated the association between grade 6 exposure to community violence and grade 8 academic functioning. There were no indirect effects through depressive and anxious symptoms, and gender did not moderate the indirect effect. Findings highlight the importance of targeting aggressive behavior for youth exposed to community violence to not only improve their behavioral adjustment but also their academic functioning. Implications for future research are discussed.