A Within-Individual Examination of the Predictors of Gun Carrying During Adolescence and Young Adulthood Among Young Men

Journal of Youth and Adolescence - Although prior studies have identified several risk factors for gun carrying, no prior longitudinal studies have examined a comprehensive set of explanatory...     

The Effect of Repeated Physical Disturbance on Soft Tissue Decomposition—Are Taphonomic Studies an Accurate Reflection of Decomposition?*

Although the relationship between decomposition and postmortem interval has been well studied, almost no studies examined the potential effects of physical disturbance occurring as a result of data collection procedures. This study compares physically disturbed rabbit carcasses with a series of undisturbed carcasses to assess the presence and magnitude of any effects resulting from repetitive disturbance. Decomposition was scored using visual assessment of soft tissue changes, and numerical data such as weight loss and carcass temperature were recorded. The effects of disturbance over time on weight loss, carcass temperature, soil pH and decomposition were studied. In addition, this study aimed to validate some of the anecdotal evidence regarding decomposition. Results indicate disturbance significantly inversely affects both weight loss and carcass temperature. No differences were apparent between groups for soil pH change or overall decomposition stage. An insect-mediated mechanism for the disturbance effect is suggested, along with indications as to why this effect may be cancelled when scoring overall decomposition.     

The layered prisoners' dilemma: Ingroup versus macro-efficiency

In the N-prisoners' dilemma (NPD), cooperation produces ingroup efficiency. But if ingroup gains from cooperation are less than outgroup losses, then macro-efficiency for the collectivity (defined as ingroup plus outgroup) is harmed. We call this situation a layered prisoners' dilemma (LPD). The LPD models diverse real world situations — from OPEC's effect on consumers to interest groups' effect on citizens. We developed an experimental analogue to test three hypotheses about LPD behavior. We found that subjects' behavior was not motivated by a concern for macro-efficiency but, instead, was a function of ingroup interaction. Specifically, ingroup discussion decreased macro-efficient behavior, but the amount of the decrease depended on decision-making structures and ingroup perceptions of outgroup worthiness. The results suggest that macro-inefficient behavior will be ubiquitous due to the ease with which subjects form ingroups. But the results also suggest tactics for constraining macro-inefficient behavior, though the success of the tactics depends on the existence of crosscutting group loyalities. We wish to acknowledge with graditude the help of Robyn Dawes, Carnegie Mellon University; John Francis, University of Utah; Mike Lyons, Utah State University; and John Orbell, University of Oregon.     

The domestic origins of human rights trials: A case study of the Second Boer War

What explains decisions taken by states around the world to prosecute members of their own armed forces for human rights violations? The dominant trend in existing literature suggests that a “justice cascade” best explains the growing prevalence of human rights trials. However, while norm diffusion offers some explanatory power in the contemporary era, other mechanisms are necessary to explain many early human rights trials. Through an analysis of one of the first recorded instances of what we now term “human rights trials” — the court-martials of six British Empire officers for the murder of POWs, civilians, and a missionary in the Second Boer War — this article identifies other crucial mechanisms driving prosecutions that retain relevance in the contemporary era. I find that signaling to domestic audiences, both at “home” and in recently conquered territories, can be critical motivators in elite or government decisions to pursue human rights trials.     

Canadian multilateral intergovernmental institutions and the limits of institutional innovation

ABSTRACT

In 2003, the premiers of Canada’s ten provinces and three territories established the Council of the Federation (CoF) to strengthen interprovincial cooperation and exercise leadership on national issues. However, the purpose of COF in practice has not been the subject of systematic study. Against the backdrop of its predecessor, the Annual Premiers’ Conference, and the broader institutional and economic forces that contribute more generally to weak institutionalization of Canada’s multilateral intergovernmental forums, this paper considers the functioning of CoF in practice by analysing the nature of the joint positions of premiers expressed in communiqués it has issued to the end of Conservative government rule, 2015. This analysis reveals the spectrum of ‘vertical’ and ‘horizontal’ measures that CoF has undertaken, and the nature of integration of CoF with other multilateral intergovernmental forums. It concludes that CoF is not immune to the underlying forces contributing more generally to the weak institutionalization of multilateral intergovernmental councils.     

Women Arrested for IPV Offenses: Abuse Experiences Yet Low Trauma Pathology

The purpose of this study is to explore how abuse experienced from a current partner and history of childhood abuse perpetrated by a parent are related to trauma symptomalogy in a sample of 82 women adjudicated for Intimate Partner Violence related offenses. Findings are mixed. Although a majority of the participants report some abuse from their partner and/or parent, both the degree of this violence and the presence of trauma pathology are lower than expected. Additionally, correlations between the three scales of partner abuse and the degree of posttraumatic sequelae are either low or did not meet significance. However, level of childhood abuse perpetrated by a mother is highly correlated with traumatic sequelae while childhood abuse from father is not. A number of reasons for these findings, which have implications for practice and future research, are discussed.     

Satisfaction with body image for early adolescent females: The impact of pubertal timing within different school environments

During adolescence dramatic physical changes take place which the individual must incorporate into his or her evolving body image. The impact of different school environments on this incorporation process is explored using data on 225 White females from a longitudinal study. Differences in physical characteristics between early, middle, and late developers were assessed each year. The effects of pubertal timing on satisfaction with body image dimensions and self-esteem were then explored for sixth- and seventh-graders within different school environments. Reference group theory was used to examine three alternative hypotheses. Early versus late onset of menarche had different effects on certain aspects of satisfaction with body image, depending on the school environment. Results support the strength of the cultural ideal of thinness for women, but no other hypothesis had consistent support. The findings indicated the need to consider a multiplicity of factors in relation to specific body image dimensions.This study has been funded by NIMH grant R01 MH-30739 and a grant from the William T. Grant Foundation. In addition, the work of the second author has been supported by a Research Development Award from the National Institute of Mental Health, #2 K02 MH-41688.Received his Ph.D. from the University of Minnesota. Current research interests include stress and coping in adolescence, the role of social relationships in problem behavior, and the effects of different school contexts.Received her Ph.D. from Columbia University. Research interests include the social and psychological effects of puberty and sex differences in adolescence.Received M. A. in clinical child psychology from Ohio State University. Main interests are developmental aspects of body-image and research on personality disorders.     

Debugging Decomposition Data—Comparative Taphonomic Studies and the Influence of Insects and Carcass Size on Decomposition Rate

Abstract:  Comparison of data from a variety of environments and ambient temperatures has previously been difficult as few studies used standardized measures of time/temperature and decomposition. In this paper, data from previous studies and recent experiments are compared using simple conversions. These conversions allow comparison across multiple environments and experiments for the first time. Plotting decomposition score against logADD allows the exponential progression of decomposition to be expressed as a simple linear equation. Data comparison from many environments and temperatures shows no difference in decomposition progression when measured using Accumulated Degree Days. The major effector of change in rate was insect presence, regardless of depositional environment, species, or season. Body size is significant when carcasses are accessed by insects; when insects are excluded, while bodies are indoors, submerged, or buried, then decomposition progresses at the same rate regardless of body size.