Rapid screening for the detection and differentiation of γ-hydroxybutyrate using ion chromatography

The analysis of gamma-hydroxybutyric acid (GHB) is problematic because it is hygroscopic, it lacks a good UV chromophore, and it undergoes heat-induced cyclization. This paper presents a new method utilizing ion-exchange chromatography (IC) with conductivity detection. The simple sample preparation, rapid analysis time, and inorganic anion detection capabilities are all advantages over the current methods. The detection of inorganic salts (formed during GHB synthesis) gives insight into the synthetic route utilized and can aid in drug seizure comparison. The developed method has a detection limit for GHB anions of 0.57 mg/L and chloride of 0.22 mg/L. A comparison of this technique with a current gas chromatography-mass spectrometry technique is presented, and a t-test found that the two methods' results are not statistically different at the 99.9% confidence level demonstrating the merits of this fast, simple, and informative IC method as a routine screening tool.     

Economic freedom, culture, and growth

How do economic freedom and culture impact economic growth? This paper argues that culture, as measured by the World Values Surveys, and economic institutions associated with economic freedom are both independently important for economic prosperity, but the strength of their impact can be better understood only when both are included in the growth regression. Our results indicate that economic freedom is more important than culture for growth outcomes, suggesting substitutability between the two. We posit that culture is important for growth when economic freedom is absent, diminishing in significance once economic freedom is established.     

Complicity and causality

This paper considers some aspects of the morality of complicity, understood as participation in the wrongs of another. The central question is whether there is some way of participating in the wrongs of another other than by making a causal contribution to them. I suggest that there is not. In defending this view I encounter, and resist, the claim that it undermines the distinction between principals and accomplices. I argue that this distinction is embedded in the structure of rational agency.

Gender Differences in the Educational Expectations of Urban,Low-Income African American Youth: The Role of Parents and the School

This study examined how youths’ gender is related to the educational expectations of urban, low-income African American youth, their parents, and their teachers. As predicted, African American boys (ages 9–16) reported lower expectations for future educational attainment than did their female counterparts. Parents and teachers also reported lower expectations for African American boys (ages 6–16) than for girls. These findings held even when controlling for academic achievement. Contrary to predictions, the magnitude of the difference in expectations for males vs. females did not increase as a function of youths’ age. In keeping with our hypotheses, parental expectations fully mediated the relation between youths’ gender and youths’ expectations. Finally, certain school-based factors (i.e., positive teacher expectations and positive youth perceptions of the school environment) appeared to protect youths’ expectations from the deleterious impact of low parental expectations.

Effects of Victimization on the Belief in a Just World in Four Ex-Yugoslavian Countries

Levels of support for just world beliefs among young adults (N = 598) from four ex-Yugoslavian countries—Bosnia and Herzegovina, Croatia, the former Yugoslav Republic of Macedonia, and Slovenia—were compared, taking into account victimization experiences and the general belief in a just world. Being a victim affected an individual’s belief in a just world in the two less economically favored contexts: Victims of exclusion in Macedonia and victims of war in Bosnia and Herzegovina were less likely to believe in a just world than non-victims. These victimization variables partly explained why the mean scores of these two countries were less than those of the two others. A deleterious effect of cumulative negative events on belief in a just world was identified, in parallel with a lower endorsement of the belief when the first victimization occurred more recently.     

Non-biased lineup instructions do matter – a problem for older witnesses

Abstract

From the limited literature on older witnesses’ identification performance it is known that they are less accurate on lineups compared to younger witnesses. What is less certain is why they show this age deficit and what can be done to aid their performance. Witnesses forgot being given non-biased lineup instructions informing witnesses that the perpetrator may or may not be present. More older witnesses than younger witnesses forgot and witnesses who failed to report remembering these instructions were significantly less accurate on the lineups. In addition, the current study investigated the use of sequential lineup presentation and stringent decision criteria to aid the performance of older witnesses. Sequential presentation was beneficial to both younger and older adults when the lineup was target absent (TA) but was detrimental when the lineup was target present (TP). Stringent decision criteria had no significant beneficial effect. Future directions for aiding older witnesses’ performance are discussed.     

Public housing authorities: Determining an appropriate role in a national preservation strategy

Abstract

This paper examines the obstacles and issues involved in developing a comprehensive preservation agenda for public housing and explores the capacity of public housing authorities (PHAs) to meet the current and future demand for affordable housing. The paper discusses the current challenges facing the public housing program and PHAs and examines the roles and functions PHAs can assume in the current preservation and affordable housing crisis. Six specific roles for PHAs are included: resolving the equity/community dilemma, improving management, articulating modernization needs and carrying out modernization programs, preventing the loss of public housing units through sales and demolition, assuming management of privately owned subsidized housing, and developing new public housing. Although there is also much potential in nonprofits as providers of low‐income housing, they must be joined by PHAs in a comprehensive low‐income housing production and preservation strategy.