Biomechanics of knife stab attacks

In the past it has been assumed that the fingerprints of women tend to have "fine" epidermal ridge detail while men have "coarse" ridge detail. Past studies have examined this hypothesis but have not clearly demonstrated if observed differences are statistically significant. The goal of this study is to determine if women have significantly higher ridge density, hence finer epidermal ridge detail, than men by counting ridges that occur within a well defined space. If significant gender differences do exist then the likelihood of inferring gender from given ridge densities will be explored. This study focused on 400 randomly picked ten-print cards representing 400 subjects. The demographic composition of this sample population represents 100 Caucasian males, 100 African American males, 100 Caucasian females and 100 African American females all within the age range of 18-67. Results show that women tend to have a significantly higher ridge density than men and that this trend is upheld in subjects of both Caucasian and African American descent (F = 81.96, P < 0.001). Application of Bayes' theorem suggests that a given fingerprint possessing a ridge density of 11 ridges/25 mm2 or less is most likely to be of male origin. Likewise a fingerprint having a ridge density of 12 ridges/25 mm2 or greater is most likely to be of female origin, regardless of race.     

What's In A Name? A Lot When "Non-" is Involved

Negotiation Journal -     

Active living and biking: tracing the evolution of a biking system in Arlington, Virginia

In Arlington, Virginia, a steady evolutionary change in biking policy during the last three decades has yielded some of the nation's best biking assets. It has a comprehensive, well-connected, highly integrated, well-mapped, and well-signed system of shared-use paved trails, bike lanes, bike routes, and other biking assets, such as workplace showers. Understanding the conditions that led to Arlington's current biking system can provide lessons in the strategy and tactics of active-living politics. One potentially effective political strategy that was successful in Arlington is for activists to pressure elected officials to select professional managers who see bike-ways as crucial to the overall transportation system. Then it is important to formalize the government-citizen relationship through an advisory panel. Also, in Arlington, the incremental creation of biking assets helped create demand for more and better facilities. In turn, this created political support for expanding and upgrading. Finally, Arlington used potentially negative circumstances (e.g., the building of highway corridors, the introduction of the Metro) as opportunities to change the built environment in ways that have encouraged more active living.     

Supreme Court of Canada's “Beautiful Mind” case

The Supreme Court of Canada's (SCC) first case involving capacity and the refusal of involuntary psychiatric treatment involved a self described “professor” who had been referred to as “Canada's Beautiful Mind”. He had been found not criminally responsible on account of mental disorder for uttering death threats. While considered incapable of making a treatment decision by psychiatrists and a review board, three levels of court, including the SCC, found him to be capable. “Professor” Starson therefore continued to refuse treatment for his psychosis and spent over seven years detained because he refused the treatment required to become well enough to be released. This refusal of treatment is permitted under Ontario law, although it is not permitted in some other Canadian provinces, and in many other countries.This article describes Starson's situation, Ontario's law with respect to consent to treatment and relevant Canadian constitutional and criminal law. It provides an analysis of the Consent and Capacity Board decision and the court appeals. Implications from Starson's case are analyzed in relation to what happened to Starson, human rights and comparative law pertaining to involuntary patients' refusal of treatment, especially their relevance to the Canadian Charter of Rights and Freedoms, and laws in some other countries. Many Canadian and foreign jurisdictions where laws apparently accord with human rights codes do not allow a person to refuse the treatment required to restore their liberty. We conclude that a law that allows a person with a mental illness to be incarcerated indefinitely in a “hospital” because needed psychiatric treatment cannot, by law, be provided is not justifiable in a caring democratic jurisdiction.     

The Density of State Interest-Communities: Do Regional Variables Matter?

To better understand state interest-group politics, this studycompares two approaches to understanding the density of theirinterest communities. The first approach—Gray and Lowery'senergy, stability, area model of density—emphasizes asmall set of political and economic variables operative withineach state in accounting for density. The second, of which thereare several examples, emphasizes a regional level of analysis.The two approaches are evaluated as both independent and complementaryaccounts of state interest-community density using 1990 statelobby-registration data. Although some evidence of modest underspecificationin the Gray and Lowery model is found, regional or spatiallybased variables only have a small impact on the density of stateinterest-communities.