Enhancement of microcrystalline identification of gamma-hydroxybutyrate

An enhancement of the microcrystalline test for the detection of gamma-hydroxybutyrate (GHB) is described. The original test used a silver/copper reagent which consisted of 0.1 g of silver nitrate and 0.1 g of copper nitrate in 10 mL water. The enhanced test utilizes lanthanum nitrate in place of copper nitrate. A detection limit of 0.5 mg/mL was achieved and the visual discrimination was improved because of larger sized crystals. Transient crystals were observed between 0.1 and 0.4 mg/mL. Silver nitrate alone appeared to be suitable for GHB detection but was not specific as other hydroxyl acids, such as glycolic acid, produced a similar crystal pattern. Tests conducted on chemical precursors of GHB and substances with similar biological activity highlight the specificity of the enhanced test. The reagent is therefore selective and sensitive for GHB in aqueous solutions. However, in beverage testing, crystal formation appeared to be inhibited for some drinks. Citric acid was identified as a possible interference depending on its concentration relative to GHB.     

The Push for Racial Equity in Child Welfare: Can Blind Removals Reduce Disproportionality?

We conduct the first quantitative analysis of “blind removals,” an increasingly popular reform that seeks to reduce the over-representation of Black children in foster care by eliminating biases in the removal decisions of investigators. We first show that over-representation in most foster care systems is driven by Black children being substantially more likely than White children to be investigated for maltreatment to begin with. Conditional on initial rates of investigation, investigators remove White and Black children similarly. Second, we find no evidence that blind removals impacted the already small racial disparities in the removal decision, but they substantially increased time to removal.     

A high endrin concentration in a fatal case.

Gas chromatography coupled to mass spectrometry was employed to quantify endrin in biological fluids in a death attributed to endrin overdose. The blood concentration of endrin was 544.9 mg/l. Results are discussed in the light of the existing literature.     

Sex differences in the Beck Depression inventory scores of adolescents

The purpose of the present study is to evaluate the potential differences between male and female adolescents in their performance on the Beck Depression Inventory (BDI) as a function of demographic variables and variables related to their living conditions. Three hundred and twelve adolescents between the ages of 13 and 17 completed the BDI and a questionnaire dealing with the variables mentioned above. All adolescents were from the Western Quebec area and were registered at De l'Ile High School (Hull) or at L'Erablière High School (Gatineau). Differences in the BDI scores were observed between female and male adolescents, with females scoring significantly higher than males. However, none of the variables included in the questionnaire had a differential effect on the BDI scores of either male or female adolescents. The results are discussed in light of their relationship with some adjustment factors in adolescence.This is a modified version of a poster paper presented at the 15th annual meeting of the European Association for Behaviour Therapy, Munich, August 1985. Participation at this conference was supported by a grant from the Social Sciences and Humanities Research Council of Canada (461-85-0373) to the first author. The authors wish to thank Madeleine Fortin and Lyne Prud'homme for their assistance, as well as Gilles Boudrias and Lionel Fournier for their cooperation.Received his Ph.D. from University of Ottawa. Major research interest is depression in adolescents.Research interest is behavior in adolescents.     

A Pilot Study Evaluating the Effectiveness of a Mindfulness-Based Intervention on Cortisol Awakening Response and Health Outcomes among Law Enforcement Officers

As first responders who are frequently exposed to job-related trauma, police officers are at an elevated risk of adverse mental and physical health outcomes. Evidence-based approaches to stress reduction are sorely needed to address the complex variety of problems that police officers face. In this pilot study we examined the feasibility and preliminary effectiveness of a mindfulness-based intervention designed to address police officer stress. A total of 43 police officers completed an 8-week Mindfulness-Based Resilience Training (MBRT) program, which was designed to improve mindfulness, resilience, stress, health outcomes, and emotional functioning. Using multilevel models we found significant improvement in self-reported mindfulness, resilience, police and perceived stress, burnout, emotional intelligence, difficulties with emotion regulation, mental health, physical health, anger, fatigue, and sleep disturbance. Although there were no significant pre-to-post-MBRT changes in cortisol awakening response (CAR), while controlling for pre-MBRT increase area under the curve (AUC_I), change in mental health was a significant predictor of post-AUC_I. Implications of these findings and areas for future research are discussed.