Observations on dental structures when placed in contact with acids: experimental studies to aid identification processes

In a "mafia" crime case, a magistrate asked us whether it is possible to destroy a cadaver by immersing it in acids, and would it be possible to identify any residues. The aim of this study was to observe the behavior of teeth exposed to four kinds of acid solutions. The teeth were placed in plastic containers with 25 mL of acid and observed. The experiences showed that teeth are completely dissolved after 14 h of immersion in 37% solution of hydrochloric acid, while at 90h in 96% sulfuric acid, the destruction of the samples is still incomplete. In nitric acid the teeth undergo a complete dissolution in 12 h, and in 17 h in aqua regia (chloroazotic acid-hydrochloric/nitric acid 1:3). It was possible to recognize the characteristic morphological features of dental tissues and structures up until the advanced stages of degradation.     

Fourth Amendment update: the Supreme Court and strip searches: Safford Unified School District No. 1 v Redding

In light of the dramatic increase in the presence of weapons, violence, drugs, and other contraband in schools, school officials in the United States and England face significant challenges as they seek to maintain safe and orderly learning environments. Almost twenty five years after the United States Supreme Court's 1985 ruling in New Jersey v. T.L.O. allowed educational officials to search student lockers and property in order to keep schools safe, the Justices addressed the more delicate matter of strip searches for contraband such as drugs. In Safford Unified School District No. 1 v. Redding (Redding), the Court invalidated the strip search of a student for drugs but left the door open for the possibility of allowing searches for weapons under some circumstances. In light of remaining unanswered questions after Redding, this article reviews the background on the Fourth Amendment, earlier cases on student searches in American public schools, Redding in detail, and reflects on unanswered questions in its wake in the hope of shedding light on the propriety of strip searches of students.     

Associations Between Psychosocial Well-Being,Stressful Life Events and Emotion-Driven Impulsiveness in European Adolescents

Journal of Youth and Adolescence - Knowing the extent to which mental well-being and stressful life events during adolescence contribute to personality characteristics related to risk-taking...     

Academic engagement with industry: the role of research quality and experience

The Journal of Technology Transfer - This work explores the role of university department characteristics in academic engagement with industry. In particular, we investigate the role played by...     

The Erratic Behavior of Lesions in Burnt Bone

This study analyses depressed fractures (by blunt force trauma) and circular full‐thickness injuries (drill injuries and gunshot wounds) in charred bones. Fifty bovine ribs (total 104 lesions) were divided into three groups. The first group consisted in 20 depressed hammer‐produced fractures; in the second one, 60 round drill‐holes were produced (30 circular, 30 semicircular); in the third group, 12 fleshed and 12 skeletonized ribs were hit by 9‐mm bullets. Each specimen was carbonized in an electric oven up to 800°C. Morphological and metric analyses were performed before and after: morphological features were preserved, but depressed fractures showed an increase in their dimensions (p‐value < 0.05); the drilled holes shrunk (p‐value < 0.01); the charring cycle increased the number of fractures in samples with gunshot wounds differently in fleshed and defleshed ribs. This study showed the complex behavior of charred bone, for what concerns the interpretation of trauma and how caution should be applied.     

A 9-loci Y chromosome haplotype in three Italian populations

Three geographic areas of Italy have been sampled and genotyped for 9 Y chromosome STRs: DYS19, DYS385, DYS388, DYS389 I and II, DYS390, DYS391, DYS392, DYS393. Sampling was focused on residents of small areas, well distant from major urban centres. Only individuals whose grandfather would live in the same area were included. A total of 210 unrelated individuals were collected. Distribution of genetic variation across the three samples and comparison with previously published Italian database indicated that so far Y chromosome diversity has been only partially explored in the Italian Peninsula.