Impact of tropical conditions on thin layer chromatography in analytical toxicology: high temperatures and moderate humidities.

The impact of high temperatures (24 to 39 degrees C) and low to moderately high humidities (20 to 70%) on the applicability of TLC systems for drug identification was studied during a 6 month climatologic cycle in Burkina Faso (West Africa). In general, the Rf values as observed on the plates were found to be substantially affected as compared with values obtained at temperate climates. Some TLC systems were more affected than others and the largest deviations of up to 30 Rf units were at low humidities. Tropical conditions also had a negative effect on the reproducibility of Rf values. However, when an Rf-correction procedure was applied, using reference mixtures of known drugs on each plate, accuracy as well as reproducibility of the resulting Rfc values were drastically improved and data thus corrected were found to be compatible with existing TLC data bases developed under moderate climatological conditions. The impact of high to extremely high humidities (70 to 100%) remains to be investigated.     

Key longitudinal-experimental studies in criminology

Following the tradition of Joan McCord's work, this paper reviews longitudinal-experimental studies in criminology with community samples of at least 100 persons, follow-up periods of at least 5 years, personal interviews, and measures of offending. The main advantages of such studies are in investigating both the natural history of development (including the effects of risk/protective factors and life events) and the impact of interventions on offending. This paper also reviews advantages and problems of prospective longitudinal surveys, randomized experiments, and longitudinal-experimental studies in criminology. Four key longitudinal-experimental studies were conducted by Joan McCord, Richard Tremblay, Lawrence Schweinhart and David Olds. Other studies have been conducted, or are currently under way, but no criminological study has yet been published with several years of personal data on participants both before and after an intervention.Joan McCord Award Lecture given at the American Society of Criminology, Toronto, Canada.     

Fraud: The Characteristic Crime of the Twenty-First Century

In the same way that larceny characterized much of twentieth century, fraud will likely characterize the twenty-first century. Larceny remains the most common oi all serious crimes, but fraud may overtake larceny as the crime of choice in the future, because of changes in our ownership, storage, and movement of property. Fraud involves purposely obtaining the property of another through deception, and its popularity as a crime of choice is growing. Entrusting property to the custody oi others, storing property at remote locations, and electronic movement of property are shown to be major changes in the way we treat property and increase opportunities for theft. The connection between fraud and many of the serious crimes of the twenty-first century are shown in the facts of recent cases. The motivation of thefl behind many frauds is also shown to be used to fund larger criminal objectives, such as illegal immigration and terrorism. The points of view expressed are those of the author and do not necessarily reflect the position or policies of the U.S. Department of Justice. Dr. Albanese is chief of the International Center at NIJ on leave from his position as professor of Government and Public Affairs at Virginia Commonwealth University.     

NO COMMUNITY IS AN ISLAND: THE EFFECTS OF RESOURCE DEPRIVATION ON URBAN VIOLENCE IN SPATIALLY AND SOCIALLY PROXIMATE COMMUNITIES*

The link between resource deprivation and urban violence has long been explored in criminological research. Studies, however, have largely ignored the potential for resource deprivation in particular communities to affect rates of violence in others. The relative inattention is notable because of the strong theoretical grounds to anticipate influences that extend both to geographically contiguous areas and to those that, though not contiguous, share similar social characteristics. We argue that such influences—what we term spatial and social proximity effects, respectively—constitute a central feature of community dynamics. To support this argument, we develop and test theoretically derived hypotheses about spatial and social proximity effects of resource deprivation on aggregated and disaggregated homicide counts. Our analyses indicate that local area resource deprivation contributes to violence in socially proximate communities, an effect that, in the case of instrumental homicides, is stronger when such communities are spatially proximate. We conclude by discussing the implications of our findings for theories focused on community‐level social processes and violence, and for policies aimed at reducing crime in disadvantaged areas.     

THE POTENTIAL OF THE FAMILY LAW EDUCATION REFORM PROJECT FOR FAMILY LAWYERS1

Family lawyers are major beneficiaries of the reforms set out in the Family Law Education Reform Project (FLER) Report. This commentary from a veteran family law practitioner explores the needs of the family law bar for the training of law students in practical, interdisciplinary, client‐centered lawyering that goes beyond the traditional case method. I trace many of the current innovations evolving in family law practice and how FLER reforms will not only benefit law schools but also have a major impact in the courts and private practice sector.     

Of War and Law

Netherlands International Law Review -     

Foreign exchange interventions in a small emerging market: the case of Croatia

This paper studies the impact of daily official foreign exchange interventions on the exchange rates in Croatia for the period from 1996 to 2004. Using the event study methodology and a variety of GARCH models reveals that the Croatian central bank was in a position to influence, to some extent, the level of the exchange rate during the period studied. This lends support to the view that foreign exchange intervention may be effective in emerging market economies.