Analysis of hydrogen peroxide field samples by HPLC/FD and HPLC/ED in DC mode

The goal of this paper is to describe applications of two recently developed HPLC methods for the analysis and confirmation of the presence of hydrogen peroxide residues in field studies. The procedure utilizes two different HPLC systems, one with post-column derivatization followed by fluorescence detection (HPLC/FD), and the other with electrochemical detection (HPLC/ED). The two systems were utilized to detect hydrogen peroxide in a variety of typical forensic samples including pre- and post-blast samples, as well as a series of environmental control samples. Peroxide-based organic explosives were also examined due to their propensity to produce peroxide residues following detonation. Because samples collected from post-blast scenes are frequently shipped or stored prior to analysis, the effects of storage time, temperature and type of substrate material on the recovery of hydrogen peroxide residues were also investigated. The combined results of the study demonstrate the capability of two HPLC approaches with selective detection in the analysis and investigation of suspected incidents involving peroxide based explosives.     

Callous and unemotional traits and social cognitive processes in a sample of community-based aggressive youth

Psychopathic traits are associated with violent, aggressive behaviors and recidivism in adulthood. To increase positive treatment outcomes, it is arguably beneficial to identify and treat psychopathy as early as possible. Furthermore, because research shows that the effectiveness of behavior modification is likely to be affected by the social information-processing patterns of aggressive children, it is important to understand the relationship between conduct-disordered traits and social cognitions. The results of this study showed that callous/unemotional traits in a community-based sample of behavior-disordered youth (57 male, 19 female; 10-19 years of age; 63% African American) significantly predicted values in obtaining a tangible reward and getting into trouble or being punished. However, callous/unemotional traits, impulsivity/conduct problems, and narcissism failed to predict positive expectations regarding receiving a tangible reward, reducing aversive treatment, and demonstration of dominance. Implications for these results are presented.     

OxyContin and a Regulation Deficiency of the Pharmaceutical Industry: Rethinking State-Corporate Crime

On May 10, 2007, three executives of the pharmaceutical company Purdue Pharma pled guilty in federal court to misleading doctors and patients about the risk of addiction and potential for abuse of OxyContin. Additionally, Purdue Pharma paid over $600 million in fines and other payments to the United States government and the Commonwealth of Virginia. The drug OxyContin was first introduced to the market in December of 1995. Warning signs of the drug’s potential for abuse were almost immediate, and there were reports of copious amounts of the drug being diverted into the black market for recreational use. In some cases, criminologists have argued that if the government fails to protect its citizens from the harm of a corporation then such behavior should be considered state-corporate crime. We critically evaluate the case of OxyContin to see if it falls under the state-corporate crime paradigm. Further, we argue the state-corporate crime paradigm can benefit from an increased focus on the organizational structures of regulation agencies.     

HOW JUDGES DECIDE WHETHER SOCIAL PARENTS HAVE PARENTAL RIGHTS: A FIVE‐FACTOR TYPOLOGY

Courts have issued conflicting rulings regarding the rights (e.g., custody, visitation) and responsibilities (e.g., child support) of non‐biological gay parents. This analysis establishes a typology of five factors that most commonly influence judges' decisions. These factors include: interpretation of parenting statutes, legislative intent, parental intent, legal documents establishing parenthood, and the child's best interests. Despite these common themes, there is still much discrepancy among court rulings. Based on this analysis, there are steps parents can take to protect their legal rights and living arrangements. Finally, policy suggestions are offered for courts and lawmakers. These legal actors can take steps (e.g., clarifying statutes) that would provide certainty for families in case of parental separation or the biological parent's death.     

Cracks in the Opposition: Immigration as a Wedge Issue for the Reagan Coalition

The absence of a core means that a majority coalition can never choose a policy that will keep it safe from minority appeals to its pivotal members. In two dimensions, strategic minorities will always be able to offer pivotal voters attractive policy concessions. We argue that this instability of multidimensional politics explains why minorities raise wedge issues and how wedge issues result in partisan realignment in legislative politics. Applying agenda‐constrained ideal point estimation techniques to immigration debates, we show that the Reagan coalition—pro‐business and social conservatives—has been vulnerable on the wedge issue of immigration and that parties have switched their positions on immigration over the last three decades. We use the uncovered set as the best‐fit theoretical solution concept in this legislative environment, to capture the limits of majority rule coalitional possibilities and policy change in the two‐dimensional absence of a core.     

Bionomics of two forensically important blowfly species Chrysomya megacephala and Chrysomya putoria (Diptera: Calliphoridae) reared on four types of diet

The use of heterogeneous animal tissues for the rearing of necrophagous insect species can produce uneven biological data, which can compromise the determination of larval age and, consequently, estimates for post-mortem intervals. We investigated the development of two species, Chrysomya megacephala and Chrysomya putoria (Diptera: Calliphoridae), reared on four substrates: minced beef (control) and semi-synthetic diets with the addition of sardine, rumen or chicken eggs. No differences in total developmental times were detected among larvae reared on different diets. Length and width of larvae were partially affected by the type of food. Third instar larvae and pupae of both species were heavier on beef treatment when compared with other substrates. Overall mortality was lower when beef was used as food. Longevity of adults and sex ratio were not negatively affected by the use of diets. Egg-based diet was the least effective for both species. Given the fact that several bionomical parameters of larvae reared on diets were close to those obtained when minced beef was offered, and considering the putrid odour, frequency of contamination and lack of homogeneity of animal tissue, semi-synthetic diets can be used for rearing C. megacephala and C. putoria.