Analysis of glass fragments by laser ablation-inductively coupled plasma-mass spectrometry and principal component analysis

Laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) is used to differentiate glass samples with similar optical and physical properties based on trace elemental composition. Laser ablation increases the number of elements that can be used for differentiation by eliminating problems commonly associated with dissolution and contamination. In this study, standard residential window and tempered glass samples that could not be differentiated by refractive index or density were successfully differentiated by LA-ICP-MS. The primary analysis approach used is Principal Component Analysis (PCA) of the complete mass spectrum. PCA, a multivariate analysis technique, provides rapid analysis of samples without time-consuming pair-wise comparison of calibrated analyses or prior knowledge of the elements present in the samples. Probabilities for positive association of the individual samples are derived from PCA. Utilization of the Q-statistic with PCA allowed us to distinguish all samples within the set to a certainty greater than the 99% confidence interval.     

Validation of the Cozart microplate EIA for analysis of opiates in oral fluid

The purpose of this study was to determine the performance characteristics of the Cozart microplate EIA for detecting opiates in oral fluid from patients in a drug misuse treatment program. Oral fluid samples were collected using the Cozart RapiScan Collection System from 216 donors who were receiving treatment for their addiction and were monitored for drug abuse. A further 40 oral fluid samples were collected from volunteer donors who were not drug users. The samples were analyzed in the laboratory by using the Cozart microplate EIA for opiates and confirmed using gas chromatography-mass spectrometry (GC-MS). The samples were stored frozen until analysis by GC-MS. The intra-assay precision for the Cozart microplate oral fluid EIA for opiates over 40 assays was 0.43% to 9.13% CV (within assay) and 2.9% to 9.1% CV (within day). A total of 109 samples were positive for various opiates. The Cozart microplate EIA for opiates in oral fluid, using a cut-off of 30 ng/ml morphine equivalents in neat oral fluid, had a sensitivity of 99.1 +/- 2.1% and a specificity of 94.4 +/- 2.2% versus GC-MS. A series of potential adulterants of oral fluid were evaluated and shown not to alter the outcome of the test result.     

Self-Silencing and Rejection Sensitivity in Adolescent Romantic Relationships

This study examined the link between rejection sensitivity, self-silencing behaviors, and depressive symptomatology among adolescent dating couples. Self-silencing was hypothesized to be the process mediating the association between rejection sensitivity and depressive symptoms. Our sample included 211 couples between 14 and 21 who were dating at least 4 weeks. Results indicated that dating adolescents who were sensitive to rejection reported more depressive symptomatology and higher levels of self-silencing behaviors within their romantic relationship compared to dating adolescents who were not so sensitive to rejection. Self-silencing was identified as a partial mediator of the association between rejection sensitivity and depressive symptomatology among dating adolescents. Clinical implications in light of these findings are discussed.

Polycentric Governance and Irrigation Reform in Kenya

In Kenya, as in many developing countries, centralized control over water resources was implemented to improve agricultural productivity. By the 1980s, however, Kenya's postindependence policies of bureaucratic control were in disarray, and conflicts over water use were common. More recently, Kenya has embarked on a series of reforms that create a polycentric approach to water governance, in which decision making about water resources is shared among multiple, overlapping local, regional, and national authorities. Drawing on archival and field research, we examine these reforms in their historic context and argue that whereas centralized control was poorly adapted to the Kenyan context, polycentric governance is better suited to Kenya's variable social and ecological conditions and the available resources of its administrative agencies.     

Inmates’ Experiences with Prison Visitation

Prison visitation is an important tool used to strengthen inmates’ social ties and incentivize good behavior in prison. Nevertheless, prison visits do not always go well for inmates, and we know little about why that is. Accordingly, in the current study we examined inmates’ varied experiences with prison visitation. We used data collected from 228 visited inmates who reported on 701 of their adult visitors, and identified whether visits typically made inmates feel guilty, stressed, sad, loved, comforted, and/or supported, and if inmates often argued with their visitors. Results from multilevel models indicated marked variability in inmates’ experiences with visitation, shaped by: who visits, how often they visit, inmates’ pre-prison behaviors, prison life, and demographic factors. These findings suggest that resources for conflict resolution may be needed during visitation, and that family-centric correctional interventions that recognize the variation we have uncovered here might hold promise in maximizing the effectiveness of visitation.     

Relationships between Agency-Specific Contact,Victimization Type,and Trust and Confidence in the Police and Courts

While the extant research on trust and confidence in the criminal justice system is broad in scope, its individual studies are more limited, leaving much unknown about these relationships. Building on prior research, the current study investigates the relationships between prior contact, victimization, and seven measures of trust and confidence in the police and courts. This study responds to calls for the relationships between trust and confidence in the criminal justice system, race/ethnicity, prior contact, and victimization to be investigated within a single study. Although rare in prior research, outcomes of trust and confidence in local police and courts are individually investigated within the same sample simultaneously. As a first, the current study also separates prior contact by police, courts, community corrections, and institutional corrections and examines four types of victimization (direct violent, vicarious violent, direct non-violent, vicarious non-violent). The latter allows for an examination of potentially more nuanced relationships between victimization and trust and confidence in the police and in the courts.     

The Resource Center for Separating and Divorcing Families: Interdisciplinary Perspectives on A Collaborative and Child‐Focused Approach to Alternative Dispute Resolution

The Resource Center for Separating and Divorcing Families (RCSDF) is a teaching model for providing interdisciplinary services to separating and divorcing families. The model was developed by the Honoring Families Initiative at the Institute for the Advancement of the American Legal System at the University of Denver. Services are provided by graduate and law students at the University of Denver, working side‐by‐side with a supervising licensed attorney, psychologist, and social worker. The experiential and interdisciplinary model of teaching and providing direct client services is the first of its kind in the United States. RCSDF students and staff seek to empower parents to make positive decisions about their family's future in a supportive and educational environment.

Key Points for the Family Court Community
• The current system of preparing graduate and law students for careers in family law is in need of improvement. This article provides information for educators and the family law community about the impact of interdisciplinary and experiential learning for students.
• Parents going through the transition of separation or divorce experience psychological and financial stressors that can create serious behavioral and adjustment issues for their children. The RCSDF works in a holistic manner with parents and children to minimize the levels of stress and anxiety during the transition.