Serious head and neck injury as a predictor of occupant position in fatal rollover crashes

Serious head and neck injuries are a common finding in fatalities associated with rollover crashes. In some fatal rollover crashes, particularly when ejection occurs, the determination of which occupant was driving at the time of the crash may be uncertain. In the present investigation, we describe the analysis of rollover crash data from the National Automotive Sampling System-Crashworthiness Data System for the years 1997 through 2007 in which we examined the relationship between a serious head and neck injury in an occupant and a specified degree of roof deformation at the occupant's seating position. We found 960 occupants who qualified for the analysis, with 142 deaths among the subjects. Using a ranked composite head and neck injury score (the HNISS) we found a strong relationship between HNISS and the degree of roof crush. As a result of the analysis, we arrived at a predictive model, in which each additional unit increase in HNISS equated to an increased odds of roof crush as follows: for ≥8cm of roof crush compared with <8cm by 4%, for ≥15cm of roof crush compared to <8cm by 6% and for ≥30cm of roof crush compared to <8cm by 11%. We describe two hypothetical scenarios in which the model could be applied to the real world investigation of occupant position in a rollover crash-related fatality.     

Environmental Harm or Natural Hazard? Problem Identification and Adaptation in U.S. Municipal Climate Action Plans

A number of cities in the United States have devised climate action plans (CAPs) to mitigate the effects of climate change. However, few of these plans address strategies to adapt to the long term effects of climate change that will occur in the near and distant future. The research presented in this article examines why cities choose to embed adaptation provisions in their CAPs. Our study codes the content of CAPs for all cities (N = 98) in the United States with populations greater than 50,000. We find cities that frame problems associated with climate change in the language of hazards are more likely to include adaptation strategies in their CAPs than cities that focus on other types of environmental harm. Our findings suggest that more robust efforts to plan for climate change will require the activation of communities of interest beyond those that have been instrumental in setting the current climate agenda.     

Limitations in assessment of mucosal healing in inflammatory bowel disease

An emerging parameter to define the effectiveness of new therapeutic agents in clinical trials,and by extension,for use in day-to-day clinical practice has been labeled mucosal healing.It has been hypothesized that complete healing of the intestinal mucosa in inflammatory bowel diseases should result in reduced disease complications,reduced hospitalization and reduced surgical treatment.By implication,the natural history of inflammatory bowel disease might then be altered. Measurement of mucosal healing,how...     

Heat Induced Changes to Dental Resin Composites: A Reference in Forensic Investigations?*

The objective was to investigate color change and surface damage in dental resin composites exposed to high temperatures over different time intervals for comparative purposes. Samples were prepared using two resins - Z100(R) (R1) and Charisma (R2), heated at the following temperatures: 200 degrees C, 400 degrees C, 600 degrees C, 1000 degrees C, for 15, 30 and 45 min (n = 104 for each resin sample). Color (DeltaE) and brightness (DeltaL) changes were analyzed by spectrophotometry using the CIE Lab system and surface changes by Scanning Electron Microscopy (SEM). R1 showed more intense color changes after heat exposure than R2. DeltaL values were found to be the best parameter for evaluation of light and color change. A biphasic pattern after thermal exposure was detected, from dark brown to light white. SEM showed more intense alterations in R2 than in R1. These results indicate that the parameters observed in both resins are useful as a guide in forensic analyses.     

Forensic Epidemiologic and Biomechanical Analysis of a Pelvic Cavity Blowout Injury Associated with Ejection from a Personal Watercraft (Jet‐Ski)

Jet‐propelled personal watercraft (PWC) or jet‐skis have become increasingly popular. The means of propulsion of PWC, which is a jet of water forced out of small nozzle at the rear of the craft, combined with a high risk of falling off of the seat and into close proximity with the water jet stream, raise the potential for a unique type of injury mechanism. The most serious injuries associated with PWC falls are those that occur when the perineum passes in close proximity to the jet nozzle and the high‐pressure water stream enters the vaginal or rectal orifice. We describe the forensic investigation into a case of an anovaginal “blowout” injury in a passenger who was ejected from the rear seat position of a PWC and subsequently suffered life‐threatening injuries to the pelvic organs. The investigation included a biomechanical analysis of the injury mechanism, a summary of prior published reports of internal pelvic injuries resulting from PWC falls as well as other water sports and activities, and a comparison of the severity of the injuries resulting from differing mechanisms using the New Injury Severity Score (NISS). The mean (±standard deviation [SD]) NISS values for reported PWC injuries [not including the NISS of 38 in this case study] were 11.2 (±9.5), while the mean value for reported water‐skiing falls was half that of the PWC group at 5.6 (±5.2). It was concluded that the analyzed injuries were unique to a PWC ejection versus other previously described non‐PWC‐associated water sport injuries. It is recommended that PWC manufacturers help consumers understand the potential risks to passengers with highly visible warnings and reduce injury risk with revised seat design, and/or passenger seat “deadman” switches.     

Universities and the teaching of forensic sciences to lawyers—a note *

This article presents the findings of the survey conducted among business and accountancy students of the Nanyang Business School, Singapore, on the teaching of business law. The article is organised in three main sections. Section 1 formulates the framework for the research by outlining the three basic approaches adopted across many jurisdictions for the legal education of business students—the traditionalist ("black‐letter law"), the environmentalist and mixed approaches. Section 2 briefly describes the survey questions drawn up in the light of four principal objectives that, according to legal educators, the teaching of business law should achieve. Section 3 presents and examines the findings. The article concludes that law teaching at the Nanyang Business School conforms to the traditional approach. The author accordingly makes recommendations for the transformation of current teaching and assessment medthods: an injection of a great deal of “environmental” content and context‐based education; more use of actual and current cases, practical examples and a link to the business environment.     

A Theory of Terrorist Leadership (and its Consequences for Leadership Targeting)

States often target terrorist leaders with the belief that the leader's death or capture will cause the terrorist organization to collapse. Yet the history of this strategy of “leadership targeting” provides a mixed record—for every example of effectiveness, there are similar examples of ineffectiveness. The central question of this article is: what makes a terrorist leader important? Specifically, what does a terrorist leader do that no one else can do (or do as well) for the organization? To answer this question, I develop a theory of terrorist leadership that argues that leaders might potentially perform two main functions: they can provide inspiration and/or operational direction (or not for both). I also theorize as to how and why the provision of these functions changes over time as the organization itself changes. The consequences for leadership targeting flow naturally from this theory—when leaders provide these functions to the organization, leadership targeting is most likely to be effective. Case studies of Algeria, Peru, and Japan offer insights into why some cases of leadership targeting were effective and why others were not. The conclusion extends this model with an analysis of al-Qaeda's prospects after the death of bin Laden.