The Influence of High Schools on Developing Public Service Motivation

ABSTRACT: Despite the theoretical importance of public service motivation (PSM) for the public sector, little is known about the malleability and causal determinants of PSM. Formal schooling is one possible determinant of PSM. Using longitudinal data, this study analyzes the effects of civics courses and school-based community service in high school on PSM-related values. A propensity score matching strategy that compares observationally similar individuals finds that participation in school-based service activities for credit increases students’ reported prosocial values, such as helping others in the community, one underlying component of PSM-related values. However, taking a civics course does not affect PSM or associated values. The results suggest that PSM-related values are malleable and responsive to early service experiences. The values underlying PSM may evolve over time. That is, the development of prosocial values in adolescence may lead to the future development of other values important to PSM.     

Evaluation of age estimation technique: testing traits of the acetabulum to estimate age at death in adult males

This study evaluates the accuracy and precision of a skeletal age estimation method, using the acetabulum of 100 male ossa coxae from the Grant Collection (GRO) at the University of Toronto, Canada. Age at death was obtained using Bayesian inference and a computational application (IDADE2) that requires a reference population, close in geographic and temporal distribution to the target case, to calibrate age ranges from scores generated by the technique. The inaccuracy of this method is 8 years. The direction of bias indicates the acetabulum technique tends to underestimate age. The categories 46-65 and 76-90 years exhibit the smallest inaccuracy (0.2), suggesting that this method may be appropriate for individuals over 40 years. Eighty-three percent of age estimates were ±12 years of known age; 79% were ±10 years of known age; and 62% were ±5 years of known age. Identifying a suitable reference population is the most significant limitation of this technique for forensic applications.     

Commentary on Foubert, Godin, & Tatum (2010): the evolution of sexual violence prevention and the urgency for effectiveness

Foubert, Godin, and Tatum describe qualitative effects among college men of The Men's Program, a one-session sexual violence prevention program. This article and the program it describes are representative of many sexual violence prevention programs that are in practice and provide an opportunity for a brief discussion of the development and evaluation of sexual violence prevention approaches. In this commentary, we will focus on two considerations for an evolving field: the adherence to the principles of prevention and the use of rigorous evaluation methods to demonstrate effectiveness. We argue that the problem of sexual violence has created urgency for effective prevention programs and that scientific and prevention standards provide the best foundation to meet this need.     

Determination of an effective housekeeping gene for the quantification of mRNA for forensic applications

The potential application of mRNA for the identification of biological fluids using molecular techniques has been a recent development in forensic serology. Constitutively expressed housekeeping genes can assess the amount of mRNA recovered from a sample, establish its suitability for downstream applications, and provide a reference point to corroborate the identity of the fluid. qPCR was utilized to compare the expression levels of housekeeping genes from forensic-like body fluid stains to establish the most appropriate assessment of human mRNA quantity prior to profiling. Although variability was observed between fluids and individuals, results indicated that beta-2 microglobulin exhibited the highest expression for all body fluids examined and across donors. A one-way analysis of variance was performed for housekeeping gene variability between donors (at the α, 0.05, significance level), and the results indicated significant differences for semen, vaginal secretions, and menstrual blood.     

The effect of body coverings on the formation of adipocere in an aqueous environment

Adipocere is a postmortem decomposition product that consists of a mixture of fatty acids. The rate of formation of adipocere from pig adipose tissue in an aqueous environment has been monitored. The effect of various clothing and carpet material types on the process was investigated. The fatty acid composition of the adipocere was determined at regular intervals using gas chromatography-mass spectrometry. Examination of the changes to fatty acid concentrations allowed the degree of adipocere formation in the different environments to be estimated. The study demonstrated that the rate at which adipocere forms is particularly accelerated by the presence of coverings produced from natural materials. Elemental analysis by inductively coupled plasma-mass spectrometry revealed, for the most part, little change to the cations present in the adipocere formed. However, an increase in Ca concentration was observed for tissue wrapped in acrylic carpet, which was associated with a CaCO(3) additive used in the carpet manufacture.     

The relationship between marijuana use and intimate partner violence in a nationally representative, longitudinal sample

Intimate partner violence is a significant public health problem, as these behaviors have been associated with a number of negative health outcomes including illicit drug use, physical injury, chronic pain, sexually transmitted diseases, depression, and posttraumatic stress disorder. The current study examined the association between marijuana use and intimate partner violence using a longitudinal survey of adolescents and young adults ages 15 to 26 years. Data were obtained from 9,421 adolescents in the National Longitudinal Study of Adolescent Health (Add Health) Waves 1 through 4 (1995-2008). Marijuana use was measured in the past year at each wave and participants were categorized as "users" or "nonusers." Partner violence was constructed using six items (three pertaining to victimization and three concerning perpetration) from Wave 4 (2007-2008). Using these six items, participants were categorized as "victims only," "perpetrators only," or "victims and perpetrators." Survey multinomial regression was used to examine the relationship between marijuana use and intimate partner violence. Consistent use of marijuana during adolescence was most predictive of intimate partner violence (OR = 2.08, p < .001). Consistent marijuana use (OR = 1.85, p < .05) was related to an increased risk of intimate partner violence perpetration. Adolescent marijuana use, particularly consistent use throughout adolescence, is associated with perpetration or both perpetration of and victimization by intimate partner violence in early adulthood. These findings have implications for intimate partner violence prevention efforts, as marijuana use should be considered as a target of early intimate partner violence intervention and treatment programming.     

Low Self-Control, Deviant Peer Associations, and Juvenile Cyberdeviance

Gottfredson and Hirschi??s (1990) general theory of crime and Akers?? (1998) social learning theory have received strong empirical support for explaining crime in both the physical and cyberworlds. Most of the studies examining cybercrime, however, have only used college samples. In addition, the evidence on the interaction between low self-control and deviant peer associations is mixed. Therefore, this study examined whether low self-control and deviant peer associations explained various forms of cyberdeviance in a youth sample. We also tested whether associating with deviant peers mediated the effect of low self-control on cyberdeviance as well as whether it conditioned the effect. Low self-control and deviant peer associations were found to be related to cyberdeviance in general, as well as piracy, harassment, online pornography, and hacking specifically. Deviant peer associations both mediated and exacerbated the effect of low self-control on general cyberdeviance, though these interactions were not found for the five cyberdeviant types examined.     

IN SEARCH OF PERMANENCY

President Clinton signed the Adoption and Safe Families Act (ASFA) into law on November 19, 1997. ASFA is designed to prevent children in foster care from being returned to unsafe homes and to find safe homes for children who are not able to return to their families. Some critics say that ASFA is too extensive and intrusive; others feel it does not go far enough. The author focuses on the practical issues of what ASFA has done so far and how various communities can still use it to ameliorate some of their child welfare problems. She begins with the history of child welfare in the United States, followed by an extensive discussion of ASFA's provisions. The author then addresses criticisms of some of ASFA's key components. A discussion of the ways the states have implemented ASFA follows. The author concludes that ASFA could be a powerful and important tool in aiding the child welfare system.