Whole bovine blood use in forensic research: Sample preparation and storage considerations

Mammalian whole blood sources are often used for forensic research and training when human samples cannot be sourced. While porcine, ovine and equine blood have been shown to be viable alternatives to whole human blood for forensic purposes, procurement can still pose a problem, especially for smaller and remote institutions. This work explores the use of whole bovine blood for basic bloodstain simulation. Sample preparation through the addition of ACD-A anticoagulant was optimized and storability was explored. Viscosity, surface tension, density, and packed cell volume, four fluid properties relevant to bloodstain pattern analysis, were monitored over four days and in two temperature conditions. Linear mixed models accounting for variation in the donor demonstrated that these fluid properties of the bovine blood changed predictably over time and with temperature. Whole bovine blood with 12.5% v/v ACD-A was found to be viable for use in basic bloodstain simulation at ambient and physiological temperature.     

Testing Alternative Legal Paradigms: An Experiment in Designing Tax Legislation

This article reports on empirical research undertaken to test the claim made in a law reform project that citizens could be made more certain of their legal obligations by changing the legal paradigm used to express their rights and obligations. Our research tested a number of hypotheses involving different formulations of the claim being made. We find that the alternative paradigm being presented was inferior to current practice and offer some reasons that would explain our results and the significance of this work for other areas of legal research.     

Robbery, recession and real wages in Hong Kong

Between 1965 and 1975 Hong Kong experienced a dramatic increase in reported crime. Criminologists have put forward two major explanations for this: 1) modernization (or convergence) theory, and 2) the alleged break-up of the police-triad (Chinese secret societies) alliance following the establishment of the Independent Commission Against Corruption. Data from the 1970s show a remarkably close relationship in Hong Kong between changes in real wages and robbery rates. In this paper we argue that declining wages are related to increased rates of such 'quick cash' crimes, particularly in societies lacking a safety net of unemployment benefits, universal health insurance and income security provisions. The results offer support for this alternative, but admittedly partial, explanation of Hong Kong's rising crime rate. This revised version was published online in July 2006 with corrections to the Cover Date.     

Thermal shrinkage of small single acrylic fibers — A technique of forensic potential

Single fibers less than 1 mm long of nine types of acrylic fibers were thermally shrunk from 85°C to 285°C by hot stage optical microscopy. A surprisingly wide variety of behavior was observed. The temperature for the onset of shrinkage ranged from 105°C to 190°C; total contraction ranged from 2% to 64%; and some fibers contracted rather steadily, whereas others contracted abruptly. Reproducibility of shrinkage was excellent for most monocomponent fibers but was less reproducible for bicomponent fibers. In general, it was found that the technique may be used to discriminate among fiber types within a single fiber generic class using submicrogram sized samples.     

Self-concept of adolescent sexual abuse victims

To assess the self-concept and psychological profile associated with sexual abuse, 20 young female victims evaluated in a sexual abuse clinic completed the Offer Self-Image Questionnaire (OSIQ). The alleged assault was intrafamilial in 13 cases, lasting from several months to 10 years. Extrafamilial abuses were isolated events. Intercourse was alleged in 18 of the 20 instances. OSIQ group mean scores were in the poorly adjusted range for three scales, indicating serious problems with sexual attitudes, family relations, and feelings of inability to master the external environment. While the mean Overall Adjustment scale score was within normal limits, 10 girls had scores in the range indicating severe problems in adjustment; 7 were incest victims. Compared to nonsexually abused adolescent patients from a general adolescent clinic, sexually abused youth had significantly more problems with vocational/educational goals, psychopathology, and ability to master the environment (p<0.05). The self-concept problems identified in these sexually abused youth (a) are similar to those reported by women seeking psychiatric care long after their childhood sexual abuse occurred and (b) share some features reported among physically abused adolescents.This work was supported in part by grants from the Robert Wood Johnson Foundation (#7278) and the Indiana State Board of Health, Maternal and Child Health Division.Received M.D. from Case Western Reserve University. Research interests are psychosocial effects of chronic illness on children and adolescents, compliance and cognitive developments.Received M.D. from Georgetown University.     

Rice farming in Bali: organic production and marketing challenges

All is not well with agriculture in Southeast Asia. The productivity gains of the Green Revolution have slowed and even reversed and environmental problems and shortages of water and land are evident. At the same time changing world markets are shifting the dynamics of national agricultural economies. But from the point of view of farmers themselves, it is their season-to-season economic survival that is at stake. Bali is in some ways typical of other agricultural areas in the region, but it is also a special case because of its distinctive economic and cultural environment dominated by tourism. In this environment, farmers are doubly marginalized. At the same time the island offers them unique market opportunities for premium and organic produce. This article examines the ways in which these opportunities have been approached and describes their varying degrees of success. It focuses especially on one project that has been successful in reducing production costs by conversion to organic production, but less so in marketing its produce. It argues finally for the need for integrated studies of the entire rice production/marketing complex, especially from the bottom-up point of view of farmers.     

A new turn to authoritarian Rule in Russia?

Many observers have pointed to the increasingly authoritarian nature of President Putin's regime in Russia. This apparent turn away from democracy has generally been attributed either to Russian political culture or to the security background of Putin himself and many of those he has brought to office. However, analysis of the democratization literature suggests that the sources of Russia's authoritarianism may lie in the nature of the initial transition from Soviet rule, and in particular the way in which elites were able to act with significant independence from civil society forces because of the weakness of such forces. This weakness enabled successive elites led by Mikhail Gorbachev, Boris Yeltsin and Vladimir Putin to construct a political system in which popularly based involvement and participation were severely restricted. In this sense, Putin is merely building on what went before, not changing the regime's basic trajectory.     

Exploring Seasonal Poverty Traps: The ‘Six-Week Window’ in Southern Malawi

Conventional wisdom in Malawi holds that seasonal food deficits force smallholders to hire out their labour to buy food during the critical first six weeks after planting, thereby reducing maize yields on their own fields and reinforcing poverty. This model was tested empirically for the Blantyre Shire Highlands using evidence from a panel survey and household case studies. Results showed no significant relationship between the supply of hired labour (ganyu) and the timeliness of weeding for maize, and that timely weeding was not a significant determinant of household maize deficits. This puzzle is explained by the diversification of the rural economy that has allowed households to develop alternative livelihood strategies to cope with maize deficits. Livelihood diversity helped poor households avoid the seasonal poverty trap and also helps explain the paradox of why the poorest region in Malawi escaped the 2001–2002 famine.