The Role of Interface Shape on the Impact Characteristics and Cranial Fracture Patterns Using the Immature Porcine Head Model, ,

The forensic literature suggests that when adolescents fall onto edged and pointed surfaces, depressed fractures can occur at low energy levels. This study documents impact biomechanics and fracture characteristics of infant porcine skulls dropped onto flat, curved, edged, and focal surfaces. Results showed that the energy needed for fracture initiation was nearly four times higher against a flat surface than against the other surfaces. While characteristic measures of fracture such as number and length of fractures did not vary with impact surface shape, the fracture patterns did depend on impact surface shape. While experimental impacts against the flat surface produced linear fractures initiating at sutural boundaries peripheral to the point of impact (POI), more focal impacts produced depressed fractures initiating at the POI. The study supported case‐based forensic literature suggesting cranial fracture patterns depend on impact surface shape and that fracture initiation energy is lower for more focal impacts.     

Why We Need Postmortem Analysis of Cardiac Implantable Electronic Devices

The prevalence of cardiac implantable electronic devices (CIEDs), pacemakers and implantable cardioverter defibrillators (ICDs) is increasing. However, postmortem analysis of CIEDs is not performed routinely. Fourteen consecutive CIEDs were analyzed. The indication for and date of implantation, technical data, CIED reprogramming, heart rhythm disturbances, patient demographics and medical consultations were investigated. Death during the first year after implantation was seen in 54%, whereof 71% consulted a physician within 10 days before death. The time of death was attributed to a particular day in 29%. There was a relationship between CIEDs and cause/manner of death in 50%. Although limited by a small sample size, this study advocates the routine postmortem CIED analysis for forensic and clinical purposes in selected cases. Patients with CIEDs seem to show an increased risk of death during the first year after implantation. The analysis of CIEDs can be helpful in evaluating the time/cause/manner of death.     

A Criminal Career Study of the Continuity and Discontinuity of Sex Offending during the Adolescence-Adulthood Transition: A Prospective Longitudinal Study of Incarcerated Youth

Longitudinal research has seriously challenged assumptions that juvenile sex offenders (JSO) are characterized by high level of dangerousness, mental health problems, and crime specialization in sex offenses. The current study examines the longitudinal pattern of offending among a sample of JSO and a sample of juvenile nonsex offenders. The research design includes longitudinal data over a nine-year period allowing the examination of offending patterns and the crime mix from age 12 to age 23. The findings highlight that, while JSO are prone to persist offending in adulthood, there is limited continuity of sex offending. Further, the findings stress the importance of taking into account nonsexual juvenile delinquency, more specifically, youth violence, to make a better assessment of early adult offending outcomes of JSO.     

Buying in a Businesslike Fashion— And Paying More?

The government, particularly the Department of Defense (DoD), is undergoing yet another wave of acquisition reforms, which are intended to bring commercial buying practices to DoD's purchasing operations. This research shows that, prior to these reforms, the DoD's buying practices were superior to commercial practices in terms of prices paid for a large number of electronic and engine parts. The research compares DoD and purchasing of more than 676,000 identical items costing more than $60 million with commercial purchasing of the identical items. It finds that the DoD's purchasing superiority holds even when purchasing costs are considered. The DoD achieved these results because it was already using commercial practices commonly followed by large firms: aggregating purchases, using cost data, and negotiating aggressively in markets with few suppliers. Some of the recent reforms will undermine the DoD's ability to exploit these common commercial practices and will raise the government's costs.     

Families falling apart

Daniel Patrick Moynihan is the senior United States Senator from New York. He is the Chairman of the Subcommittee on Social Security and Family Policy of the Committee on Finance, and of the Subcommittee on Water Resources, Transportation, and Infrastructure of the Committee on Environment and Public Works. He is also a member of the Committee on Foreign Relations and the Senate Arms Control Observer Group. He is the author or editor of 14 books, including Beyond the Melting Pot(with Nathan Glazer) and his most recent work, Came the Revolution: Argument in the Reagan Era.     

How to win the political contest: A monopolist vs. environmentalists

This paper sheds light on the political economy of local energypolitics both from a theoretical and an empirical perspective.First, a case study of a small town in Southern Germany(Schönau) is presented, where environmentalists have won thepolitical contest against the regional energy monopolist and havefounded an energy supply firm themselves. The different stagesof the political process are explained and analysed. Second, apolitical economy model is developed, where environmentalists anda monopolistic utility firm confront each other both on thepolitical and on the energy market. In the lobbying equilibriumthe probability of the environmentalists' winning the gamedepends on the monopoly rent and the perceived social costs ofenergy production. It is shown that it is optimal for themonopolist to reduce his output below the monopolistic output.Finally, the winning strategy in the Schönau case is discussedin the light of the theoretical results of the paper.     

The Age Gap in the 2008 Presidential Election

The 2008 presidential election suggests a significant realignment among voters entering the electorate, with younger voters deviating considerably from older voters in their partisan preferences. Barack Obama won the vote of those under 30 years old by a 66% to 32% margin and first time voters favored him by an overwhelming margin of 69–30%. The fact that the age gap between Barack Obama and Hillary Clinton during the 2008 Democratic presidential nomination contest was also among the largest age gaps in American electoral history suggests that part of the age gap was undoubtedly due to the appeal of Obama with younger Americans. Part of the age gap, however, was also due to the unpopularity of the George W. Bush administration. The strong youth vote for Obama in 2008 was thus both pro-Obama and anti-Bush in nature. The huge age gap in 2008 suggests a split of the electorate along generational lines and the long-term consequences of the age gap appear to overwhelmingly favor the Democratic Party. George W. Bush’s unpopular and divisive presidency helped to make the youngest generation of American voters increasingly Democratic in their vote preference. This suggests that if younger Americans follow other generations in keeping the same partisan voting patterns throughout their life, the Democrats are potentially poised to make considerable gains in future elections.     

Contribution of parkland trees to farmers’ livelihoods: a case study from Mali

Native species of trees and shrubs contribute significantly to farmers' livelihoods by supplying food, medicinal products, fodder, and wood. In the case study reported in this article, this contribution to farmers' annual revenue varied from 26 per cent to 73 per cent, and was as high as US$ 650 a year for households for which agroforestry products were the primary source of revenue. Household consumption was not quantified in the study, but farmers' comments confirmed that native trees also played an important role in assuring food security, especially in the ‘hunger period’ when grain stores are low and farmers are waiting for the next harvest.