Portable high‐resolution automated 3D imaging for footwear and tire impression capture

The forensic science community raised the need for improved evidence recognition, collection, and visualization analytical instrumentation for field and laboratory use. While the 3D optical techniques for imaging static objects have been extensively studied, there is still a major gap between current knowledge and collecting high‐quality footwear and tire impression evidence. Among optical means for 3D imaging, digital fringe projection (DFP) techniques reconstruct 3D shape from phase information, achieving camera‐pixel spatial resolution. This paper presents a high‐resolution 3D imaging technology using DFP techniques dedicated to footwear and tire impression capture. We developed fully automated software algorithms and a graphical user interface (GUI) that allow anyone without training to operate for high‐quality 3D data capture. We performed accuracy evaluations and comparisons comparing with the commercial high‐end 3D scanner and carried out qualitative tests for various impressions comparing with the current practices. Overall, our technology achieves similar levels of accuracy and resolution with a high‐end commercially available 3D scanner, while having the merits of being (1) more affordable; (2) much easier to operate; and (3) more robust. Compared with the current practice of casting, our technology demonstrates its superiority because it (1) is non‐destructive; (2) collects more evidence detail than casts, especially when an impression is fragile; (3) requires less time and money to collect each piece of evidence; and (4) results in a digital file that can easily be shared with other examiners.     

Children’s attitudes towards animal cruelty: Exploration of predictors and socio-demographic variations

ABSTRACT

Assessing the risk for animal cruelty is imperative, yet understudied and problematic due to the sensitivity of the topic. Early prevention is critical, yet very little research examines cruelty when it first appears in childhood. The aim of this study was to explore children’s attitudes towards types of animal cruelty, to investigate potential demographic differences, and to examine potential associations between acceptance of cruelty and cognitive and affective factors that place children ‘at-risk’ for cruelty perpetration. Questionnaire data was collected from 1127 children in schools. The results indicate that cruelty attitudes are predicted by some demographic variables such as urban living, being male, younger age and not having pets, but depend on the type of animal cruelty. Acceptance of cruelty predicted low compassion and low reported humane behaviour towards animals. Acceptance of cruelty was predicted by negative attitudes towards animals, lower beliefs in animal minds and low attachment to pets, signifying the importance of targeting such variables in future prevention programmes. This study is an original contribution to research into childhood animal cruelty in the general population, with implications for designing and implementing early prevention programmes that tackle problematic attitudes to cruelty.     

Estimating Individual Contributions to Complex DNA SNP Mixtures.,

High‐throughput sequencing (HTS) of large panels of single nucleotide polymorphisms (SNPs) provides an alternative or complimentary approach to short tandem repeats (STRs) panels for the analysis of complex DNA mixture forensic samples. For STRs, methods to estimate individual contribution concentrations compare capillary electrophoresis peak heights, peak areas, or HTS allele read counts within a mixture. This article introduces three approaches (mean, median, and slope methods) for estimating individual DNA contributions to forensic mixtures for HTS/massively parallel sequencing (MPS) SNP panels. For SNPs, the major:minor allele ratios or counts, unique to each contributor, were compared to estimate contributor proportion within the mixture using the mean, median, and slope intercept for these alleles. The estimates for these three methods were typically within 5% of planned experimental contributions for defined mixtures.     

Critique of Schuker “J.M. Keynes and the Personal Politics of Reparations”

In “J.M. Keynes and the Personal Politics of Reparations,” Parts I and II, published in Diplomacy and Statecraft (2014), the American historian Stephen Schuker claims that Keynes’ scientific arguments against the policy of reparations were distorted by both political passion and his emotional attachment to the German banker, Dr. Carl Melchior. He provides no evidence for this argument, and Keynes’ analytic positions emerges without reference to either.     

Pyro-Terrorism—The Threat of Arson-Induced Forest Fires as a Future Terrorist Weapon of Mass Destruction

The United States is at significant risk of a future pyro-terrorist attack—when terrorists unleash the latent energy in the nation's forests to achieve the effect of a weapon of mass destruction—the threat, must be defined America's vulnerabilities understood, and action taken to mitigate this danger to the United States.     

Patterns in the lives of ETA members

Abstract

Based on 48 fairly detailed personal case histories, and more limited data on 447 other individuals, this article describes significant patterns in the lives of members of the Basque insurgent organization Euzkadi ta Askatasuna (ETA). The article discusses the age and sex of ETA members, the socioeconomic background of the members and their families, and their ethnic and linguistic characteristics. The article also describes life in ETA, the radicalization of Basque youth, how new members are recruited into the organization, how they live and what they do as members, how ETA members relate to family, friends and loved ones, and how they terminate their relationship to the organization. The study finds ETA members to be not the alienated and pathologically distressed individuals who join other insurgent organizations, but rather they are psychologically healthy persons for the most part, strongly supported by their families and their ethnic community.