Comparison of Protocols for Measuring and Calculating Postmortem Submersion Intervals for Human Analogs in Fresh Water

Protocols for determining postmortem submersion interval (PMSI) have long been problematic for forensic investigators due to the wide variety of factors affecting the rate of decomposition of submerged carrion. Likewise, it has been equally problematic for researchers to develop standardized experimental protocols to monitor underwater decomposition without artificially affecting the decomposition rate. This study compares two experimental protocols: (i) underwater in situ evaluation with photographic documentation utilizing the Heaton et al. total aquatic decomposition (TAD) score and (ii) weighing the carrion before and after submersion. Complete forensic necropsies were performed as a control. Perinatal piglets were used as human analogs. The results of this study indicate that in order to objectively measure decomposition over time, the human analog should be examined at depth using the TAD scoring system rather than utilizing a carrion weight evaluation. The acquired TAD score can be used to calculate an approximate PMSI.     

Why Should Justice Be Seen to Be Done?

A well-known maxim instructs that justice should be seen to be done. When “seen” is understood in the sense of “observed”, the maxim is easily defended: open court proceedings protect against arbitrary and partial decisions. However, when “seen” is understood in the sense of “seem,” the maxim is more puzzling, since it is not obvious why courts should concern themselves with people's perceptions that justice has been done. This article addresses this issue, with a particular focus on the social and other benefits that result when judges observe procedures that are widely regarded as fair, especially in criminal trials. The article draws on empirical studies in social psychology that show that when legal authorities treat people in ways that accord with “lay” procedural expectations, they are more likely to view the authorities as legitimate, to cooperate with them, and to obey the law out of an internalized sense of obligation. The article explores the moral significance of these empirical findings, arguing that it would be superficial to see them as a recipe for social stability. The deeper truth conveyed by the empirical research is that relating to people in ways that are widely perceived to be fair is a way for authorities to engage people's moral sentiments and to enliven their virtuous capacity to put aside considerations of self-interest so as to do what is right. This dynamic provides a sound moral foundation for courts to concern themselves with perceptions of justice.     

Risk management in gathering economies

This article extends the literature on the interplay of environmental risk and welfare into the setting of coastal fisheries gathering. It reviews the sources of covariate and idiosyncratic production risk creating income shocks to gatherers and discusses the institutions that best mediate shocks across different settings. We rely upon a principal-agent framework between larva-gathering agents employed by boat-owning principals who supply seed to shrimp farms. Two datasets from a Central American fishery are used to test the hypotheses concerning contractual performance across environments. Which contract provides the highest mean income (and variation) depends upon the underlying production catch data. In the farm production records dataset with strong catch trends, a simplified relative payments contract would perform better in reducing income risk in locations of stronger covariate shocks, but at the price of significantly lower mean earnings for gatherers. In areas of idiosyncratic shocks, such as localised water pollution, piece-rate contracts would perform better. Objective risk exposure to gatherers was lower under relative payments, supporting the hypotheses. Actual results in the Honduran case were conditioned by imperfect labour markets and the substitutability of hatchery larva.     

Environmental and Ecological Citizenship in Civil Society

Drawing from the work of Andrew Dobson, two notions of citizenship in civil society can be distinguished: environmental citizenship, which focuses on environmental rights and seeks to redefine the relationship between the state and the citizen; and ecological citizenship, which goes beyond a rights-based notion of citizenship to advocate the fair usage of ecological space across international borders. Using civil society initiatives to conserve forests, this article argues that these two notions of citizenship should be seen as overlapping in that civil society groups seek to work through national and international law to reduce the ecological footprint of some countries on others. The article concludes by drawing a distinction between the environmental state and the ecological state.     

Etiological Similarities Between Psychological and Physical Aggression in Intimate Relationships: A Behavioral Genetic Exploration

Previous research has consistently shown that there is a strong association between psychological and physical aggression in intimate relationships. Theories as to why this association exists include that they have a single underlying etiology with differing thresholds, or they have separate etiologies and there is a two-step process by which psychological aggression moves to physical. The current study suggests that these two theories are not necessarily competing theories. The genetic and environmental covariance between psychological and physical intimate partner aggression were examined in 134 monozygotic (MZ) and 41 dizygotic (DZ) twin pairs. Results showed that psychological and physical aggression have largely the same genetic etiology, and any differences between the two are a function of differing nonshared environmental influences.