Effects of kinetic energy and firearm-to-target distance on fracture behavior in flat bones

This research implements a fractographic approach to investigate the relationships between kinetic energy, firearm-to-target distance, and various aspects of fracture behavior in gunshot trauma. Gunshot experiments were performed on pig scapulae (n = 30) using three firearms generating different muzzle (initial) kinetic energies, including a 0.32 pistol (103 J), 0.40 pistol (492 J), and 0.308 rifle (2275 J). Specimens were shot from two distances: 10 cm (n = 15) and 110 cm (n = 15). Features evaluated in fractographic analysis such as cone cracks, radiating cracks, crack branching points, and circumferential cracks could be easily identified and measured in flat bones and allowed for statistical comparison of crack propagation behavior under different impact conditions. Higher-energy bullets produced more radiating cracks, more crack branching points, and longer fracture lengths than lower-energy bullets. Distance had no significant effect on fracture morphology at the distances tested. That quantitative measures of crack propagation varied with energy affirms that kinetic energy transfer is important in determining the nature and extent of fracture in gunshot wounds and suggests it may be possible to infer relatively high- versus relatively low-energy transfer using these features. Ranges obtained with the three firearms exhibited considerable overlap, however, indicating that other variables such as bullet caliber, mass, and construction influence the efficiency of energy transfer from bullet to bone. Therefore, fracture morphology cannot be used to identify a specific firearm or to directly reconstruct the muzzle (initial) kinetic energy in forensic cases.     

Police Powers and Article 5 ECHR: Time for a New Approach to the Interpretation of the Right to Liberty

Liverpool Law Review - This paper discusses the approach of British and European Courts to the interpretation and application of the Article 5 ECHR right to liberty when faced with police powers....     

Women,love and power in Enlightenment Scotland

The significance of the Enlightenment for women’s power in society and culture has been a topic of significant historiographical debate. This article looks at how women were located within the discourse of the Scottish Enlightenment and its implications for elite women’s role within public and private life in eighteenth-century Scotland. It argues that women were located as helpmeets to men, a designation that authorised their access to education and to some areas of public debate, but that their authority rested on their ability to improve the position of men, rather than enabling them as autonomous agents. To make this argument it draws together case studies of women’s role in the home and family, with their engagement in public life and as authors, demonstrating how similar values shaped their role in each sphere.     

The Relation of Harsh and Permissive Discipline with Child Disruptive Behaviors: Does Child Gender Make a Difference in an At-Risk Sample?

The role of parenting in child disruptive behaviors has received substantial support; however, the findings as to differential effects of specific parenting behaviors (e.g., discipline) on boys’ and girls’ disruptive behavior problems have not been consistent. The current study examined the individual, unique, and interactive relation of two types of ineffective discipline (i.e., harsh & permissive) with child disruptive behavior for at-risk boys and girls separately. Participants were 160 parents with 3- to 6-year-old at-risk children (47.5% girls). Findings revealed that higher levels of harsh discipline were related to more intense disruptive behavior of both boys and girls, whereas higher levels of permissive discipline were related to more intense disruptive behavior of only boys. Additionally, results indicated that harsh and permissive discipline did not interact to predict child disruptive behavior problems. Clinical implications and directions for future research are discussed.     

State Income Tax Treatment of the Elderly

The state and local tax treatment of the elderly varies significantly from state to state. In this article, we analyze the differences in effective tax rates for the state personal income tax for elderly versus non-elderly taxpayers. We find that in a majority of states, the average effective tax rate facing the elderly is significantly lower than that of non-elderly taxpayers. The consequences of this tax rate difference may impact long-term state income tax revenues as the elderly population continues to grow.