Automated Texture Recognition of Quartz Sand Grains for Forensic Applications*

Quartz sand surface texture analysis has been automated for the first time for forensic application. The derived Basic Image Features (BIFs) provide computer-generated texture recognition from preexisting data sets. The technique was applied to two distinct classification problems; first, the ability of the system to discriminate between (quartz) sand grains with upturned plate features (indicative of eolian, global sand sea environments) and grains that do not exhibit these features. A success rate of grain classification of 98.8% was achieved. Second, to test the ability of the computer recognition system to identify specific energy levels of formation of the upturned plate surface texture features. Such recognition ability has to date been beyond manual geological interpretation. The discrimination performance was enhanced to an exact classification success rate of 81%. The enhanced potential for routine forensic investigation of the provenance of common quartz sand is indicated.     

Immigration and the Changing Nature of Homicide in US Cities, 1980–2010

Objectives

Previous research has neglected to consider whether trends in immigration are related to changes in the nature of homicide. This is important because there is considerable variability in the temporal trends of homicide subtypes disaggregated by circumstance. In the current study, we address this issue by investigating whether within-city changes in immigration are related to temporal variations in rates of overall and circumstance-specific homicide for a sample of large US cities during the period between 1980 and 2010.

Methods

Fixed-effects negative binomial and two-stage least squares (2SLS) instrumental variable regression models are used to analyze data from 156 large US cities observed during the 1980–2010 period.

Results

Findings from the analyses suggest that temporal change in overall homicide and drug homicide rates are significantly related to changes in immigration. Specifically, increases in immigration are associated with declining rates for each of the preceding outcome measures. Moreover, for several of the homicide types, findings suggest that the effects of changes in immigration vary across places, with the largest negative associations appearing in cities that had relatively high initial (i.e., 1970) immigration levels.

Conclusions

There is support for the thesis that changes in immigration in recent decades are related to changes in rates of lethal violence. However, it appears that the relationship is contingent and varied, not general.     

‘The Woman was a Stranger’: childbirth and community in eighteenth-century England*

On 17 December 1766 James Field stood accused at the Old Bailey of the ‘wilful murder of a new born child, by casting it into a tub of water’. The case was exceptional in many ways—not only was the accused male but he and his family had removed themselves from the network of neighbourly interactions that characterised lower status life in this period. As a result, the court's deposition statements record ideas of belonging and community with unusual clarity. Using Field as a case study, this article explores the involvement of the local community in the experience of childbirth in the eighteenth century. It will argue that childbirth had an active role in the creation of neighbourhood, and momentarily captured shifting eighteenth-century understandings of community.     

The efficacy of foot patrol in violent places

Objectives

This study examines the effectiveness of foot patrol in violent micro-places. A large urban police department deployed foot patrol in micro-places (hot spots) for a period of 90 days for two shifts each day. Our objective is to determine whether this activity impacted violent crime in these hot spots and whether spatial displacement of crime occurred.

Methods

Eight eligible foot beat locations were set by examining crime rates for previous years in order to identify micro-places of high criminal activity. We employed a quasi-experimental design comparing the four treatment to the four control areas, estimating panel-specific autoregressive models for 30 weeks prior to and 40 weeks after the treatment.

Results

Time series models revealed statistically significant reductions in violent crime in the micro-places receiving foot patrol treatment, while no such reductions were observed in the control areas. The deterrent effect, however, was short and dissipated quickly. Control areas did not experience any crime prevention benefit during this time period. No evidence of crime displacement to spatially contiguous areas was detected.

Conclusions

This contributes to the growing body of knowledge that focused police strategies within hot spots impact violent crime. Specifically, the implementation of foot patrol in high crime hot spots led to measurable reductions in aggravated assaults and robberies, without displacing crime to contiguous areas.

     

Promoting the Information Society: The EU Directive on Electronic Commerce

On 8 June 2000, the EU adopted the landmark 'electronic commerce' directive, a legal framework for the development of information society services. This article examines the rationale and evolution of EU policy for e-commerce and the key features of the directive. These include establishing the responsibilities of service and intermediary service providers, procedures for concluding on-line contracts and redress and enforcement mechanisms. It also explores the extent to which the directive clarifies the national law applicable to cross-frontier transactions and the relationship between the directive and private international law. The directive makes an important contribution to encouraging trust in the new technologies by establishing an EU-wide model for e-commerce, but it is by no means clear that it goes far enough. The continuing divergence of consumer protection policies and uncertainties about jurisdiction, securing redress, the liabilities of service providers and the status of contracts based upon web-site advertisements may continue to discourage the development of e-commerce in the Community.     

The creation of neo-liberal corporate bias in transnational medicines control: The industrial shaping and interest dynamics of the European regulatory state

Abstract. Drawing on the political theories of corporatism, neo–liberalism and pluralism, and on comparative empirical research in Brussels, Germany, Sweden and the UK, this article conceptualises the nature of Europeanised medicines regulation. It argues that a marketisation of regulation has been established in the European Union as a result of competition between national regulatory agencies for 'regulatory business' from the pharmaceutical industry. In the pharmaceuticals sector the Europeanised regulatory state is a product of three key factors: (a) the European Commission's commitment to an 'efficiency' regime which would meet the political objectives of a single European market and the commercial agendas of transnational pharmaceutical companies, (b) the endemic corporate bias associated with medicines regulation in the most influential member states, and (c) the considerable success of neo–liberal politics across a number of major member states, including Germany, Sweden and the United Kingdom.     

U.S. Engagement in East Asia: A Case for ‘Track Two’ Diplomacy

As the Bush presidency draws to a close, the foreign policy community is taking stock of contemporary U.S.-Northeast Asian relations, assessing the challenges and opportunities that are likely to confront the next administration. China presents both in abundance, as reflected in ongoing tensions and misunderstandings in the Sino-American bilateral relationship. This article assesses the prospects for Washington to improve its relations with China through the mechanism of “track two” diplomacy. First, we expand on the track two concept by examining its main components and functions with illustrative examples. We extend the existing conceptualization of track two beyond its traditional conflict resolution functions and develop an account of it as a mechanism for policy coordination and the reorientation of regional dynamics from conflict to cooperation. Second, we identify major areas of U.S. interest in Northeast Asia and show how track two diplomacy might usefully be pursued within these contexts. Our analysis culminates with recommendations on how the Unites States should apply track two strategies in its relations with China.