An assessment of human performance in stabbing.

Stab-resistant body armour is now becoming a standard item of equipment for police officers in the United Kingdom. In the UK these are usually required to have a stab resistance as specified by the Police Scientific Development Branch KR42 standard [G. Parker, PSDB Stab Resistant Body Armour Test Procedure, Police Scientific Development Branch, Publication No 10/93, 1993]. There are several other test standards, all of which specify that body armour must resist penetration by a specific blade type delivered at a specific energy level or range of levels. However, the actual range of energy levels specified varies over almost an order of magnitude and the basis for these levels is not clearly defined. This paper describes tests to determine the energy range and characteristics of stabbing actions that might be directed against stab resistant body armour by an assailant. The energy and velocity that can be achieved in stabbing actions has been determined for a number of sample populations. Volunteers were asked to stab a target using an instrumented knife that measured the axial force and acceleration during the stabbing. The maximum energy obtained in underarm stabbing actions was 64 J whilst overarm stabbing actions could produce 115 J. The loads produced on contact with the target often approached 1000 N.     

The Electoral Impact of Constituency Campaigning in Britain, 1992–2001

Political parties maintain local organisations and recruit members mainly to fight elections. For most of the post-war period, however, the dominant view among analysts has been that constituency campaigning in British general elections has little or no effect on election outcomes. This view has been challenged over the last ten years or so. Evidence derived from post-election surveys of constituency election agents following the 1992, 1997 and 2001 general elections is used here to show that the intensity of constituency campaigning significantly affects turnout levels and, for Labour and the Liberal Democrats, levels of party support. There is also some evidence that Conservative campaigning affected constituency variations in the party's performance in 2001. The conclusions reached on the basis of aggregate-level analysis are supported by analysis of individual-level data derived from British Election Study surveys. The effects of campaigning are not large, but they are clear and significant – and sufficient to affect the numbers of seats won by the major parties. In the light of this, parties have good reasons to maintain healthy local organisations.     

Thomas G. West, <Emphasis Type="Italic">The Political Theory of the American Founding: Natural Rights,Public Policy,and the Moral Conditions of Freedom</Emphasis>

Review of Thomas G. West, The Political Theory of the American Founding.     

Supportive Community Resources Are Associated with Lower Risk of Substance Use among Lesbian,Gay, Bisexual,and Questioning Adolescents in Minnesota

Journal of Youth and Adolescence - Research has indicated that lesbian, gay, bisexual, and queer/questioning (LGBQ) adolescents have disproportionately high rates of substance use compared to...     

Gas chromatographic detection of cocaine and cocaethylene in hair of mice chronically injected with cocaine or cocaethylene and fed ethanol.

GC and GC/MS analysis was used to detect cocaine and cocaethylene in hair extracts of mice injected with 20 mg/kg cocaine hydrochloride or an equivalent dose of cocaethylene fumarate twice daily for 3 weeks. Some mice were fed liquid Lieber-DeCarli diets containing ethanol (26% of total calories) and injected twice daily with the same doses of cocaine or cocaethylene or combination of cocaine and morphine (5 mg/kg). The average concentrations of cocaine in different experimental groups were in the range of 0.9-2.4 ng/mg of hair and for cocaethylene, 2.4-2.8 ng/mg of hair. There were no significant differences in hair concentrations of cocaine among groups receiving cocaine treatment, nor were there significant difference in cocaethylene concentration in hair in the two groups administered cocaethylene. In hair extracts of mice treated with cocaine and ethanol, levels of cocaethylene were below the limit of detection.     

Urbanization processes and policies in Africa: lessons from Kenya,Tanzania, Zambia and Zimbabwe

The urbanization experiences of Kenya, Tanzania, Zambia, and Zimbabwe are examined, with emphasis on the effectiveness of policies designed to influence urbanization. The first part of the study describes the measures adopted; the second part attempts to evaluate their effectiveness as well as their impact on poverty and inequality.     

Iran’s Latin America Strategy: 2005 to Present

Iran has expanded its trade relations with Latin America since 2005. Many argue that the reasons for such activities are for financial gain and to bypass the sanctions. This article argues that economic gain are miniscule and that the primary objectives of Iran are two-fold: first, to assist its nuclear program; and second, to develop deterrence against the U.S. possible military option against Iran.