Pulp volume quantification methods in cone-beam computed tomography for age estimation: A critical review and meta-analysis

The secondary dentin deposition that occurs after the tooth formation process results in a decrease in pulp cavity volume in adolescents and adults. The purpose of this critical review was to correlate pulpal and/or dental volume on cone-beam computed tomography (CBCT) with chronological age approximation. A subobjective was to investigate which methodology and CBCT technical parameters would be most appropriate to evaluate this correlation. This critical review followed the PRISMA guidelines, and it was conducted by a search through PubMed, Embase, SciELO, Scopus, Web of Science, Cochrane Library databases, as well as gray literature. Primary studies that used pulp volume, or pulp chamber to tooth volume ratio measured using CBCT were included. Seven hundred and eight indexed and 31 non-indexed records were identified. A qualitative analysis was performed including 25 selected studies with a total of 5100 individuals, age ranging from 8 to 87 years without sex predilection. The most used method was pulp volume/tooth volume. CBCT voxel size ranged between 0.09 and 0.5. Manual segmentation associated with threshold algorithms was used in most of the studies. Correlation between the pulp volume/tooth volume ratio was moderate: −0.66 for the upper central incisors, −0.59 for upper canines and −0.56 for lower canines. High heterogeneity was observed among the studies. It is concluded that pulp volume should be used with caution in age estimation. Evidence supports the preferable use of upper incisors with pulp volume/tooth volume ratio for age estimation. There is not enough evidence that voxel size interferes in age estimation by pulp volume.     

A Case Study of Semiotic Distinctiveness in Brand Names

Brand names constitute a form of value for commercial products, because they suppose a savings of search costs for the consumer. The law, as a consequence, has the obligation to protect brand names. But the number of attractive brand names is not infinite and sometimes companies seek brand names which are reminiscent of others. In this article a conflict between two companies for the distinctiveness of two brand names is addressed: one Spanish company used the English common noun doughnut for a product similar to the American pastry, while the other company had already registered donut as a brand name, in addition to its variants. This second company sued the first on the grounds that the names were not distinctive. Here we offer the arguments presented to the judge in defense of the distinctiveness of doughnut and the judgment.     

Partner Violence Entrapment Scale: Development and Psychometric Testing

This article describes the development and testing of the psychometric properties of the Partner Violence Entrapment Scale (PVES), an instrument that evaluates the women’s perceived reasons for staying in violent partner relationships. After initial pilot testing, the scale was administered to 213 Spanish women who were victims of intimate partner violence (IPV). An exploratory factor analysis identified six factors: Socio-Economic Problems, Attachment and Fear of Loneliness, Blaming Oneself and Resignation, Impact on Children, Fear of Harm and Worry for the Partner, and Feelings of Confusion. Discriminant validity was established by demonstrating associations between PVES factors and socio-demographic, clinical and abuse variables. The scale appears to be a useful assessment tool for social and clinical settings. Its factor structure, reliability, and validity need to be replicated in other populations and samples.     

Young and armed: a cross-sectional study on weapon carrying among adolescents

The purpose of this study was to identify empirically, for the first time in France, the prevalence of adolescent weapon carrying with particular focus on the contribution of a broad range of social bonding, strain, social learning, and sociodemographic predictors. A multivariate logistic regression model was conducted using a backward elimination procedure to identify the significant predictors of weapon carrying controlling for age, gender, and SES in a sample of 12,706 French youth aged 11–19 years. Results revealed that the odds of weapon carrying increased among adolescents who suffered from past victimization, who had a negative relationship with their mother, and who repeated a grade at school. Moreover, holding pro-delinquent beliefs and having delinquent peers also increased the odds of weapon carrying. Our findings highlight the importance of the interpersonal and social context when examining the determinants of weapon carrying and showed a unique contribution of components of social bonding, strain, and social learning in weapon carrying among adolescents.     

Contribution of parkland trees to farmers’ livelihoods: a case study from Mali

Native species of trees and shrubs contribute significantly to farmers' livelihoods by supplying food, medicinal products, fodder, and wood. In the case study reported in this article, this contribution to farmers' annual revenue varied from 26 per cent to 73 per cent, and was as high as US$ 650 a year for households for which agroforestry products were the primary source of revenue. Household consumption was not quantified in the study, but farmers' comments confirmed that native trees also played an important role in assuring food security, especially in the ‘hunger period’ when grain stores are low and farmers are waiting for the next harvest.     

Speaking the language of security: the Commonwealth,the Francophonie and the CPLP in conflict management in Africa

The last decade has seen an unprecedented increase in conflict management activities in Africa by international organisations. This has been accompanied by a flurry of academic publications and of policy reports that stress the comparative advantages at the legal and operational levels of regional and other intergovernmental organisations. The article assesses this dominant favourable view by examining the role of the Commonwealth, the Francophonie and the CPLP in Africa. Traditionally regarded as cultural organisations, they have gradually extended their profile to include a security mandate. Drawing from fieldwork and an extensive review of the literature, the article presents the first comparative study of the conflict management activities of these organisations in Africa.     

Legal Statements and Normative Language

Can there be a non-reductivist, source-based explanation of the use of normative language in statements describing the law and legal situations? This problem was formulated by Joseph Raz, who also claimed to have solved it. According to his well-known doctrine of ‘detached’ statements, normative legal statements can be informatively made by speakers who merely adopt, without necessarily sharing, the point of view of someone who accepts that legal norms are justified and ought to be followed. In this paper I defend two theses. I argue, first, that the notion of a detached statement cannot be made to work, and that Raz’s problem is thus not thereby solved. But the problem itself, I also suggest, is a false one.     

Y-STRs in forensic medicine: DNA analysis in semen samples of azoospermic individuals

ABSTRACT: The incidence of rape has increased, especially in metropolitan areas, such as the city of São Paulo. In Brazil, studies about it have shown that the majority of this type of crime is committed by the relatives and persons close to the victim. This has made the crime more difficult to be denounced, as only 10% of the cases are reported to competent police authorities. Usually, cytological exams are carried out in sex crime investigations. The difficulty in showing the presence of spermatozoa is frequent, but it does not exclude the presence of male DNA. The absence of spermatozoa in material collected from rape victims can be due to several factors, including the fact that the agressor suffers from azoospermia. This condition can be the result of a successful vasectomy. As the majority of DNA in the ejaculation sample is from spermatozoa, there is much less DNA to be analyzed. This study presents the application of Y‐STRs (DYS19, DYS389I, DYS389II, DYS390, DYS391, DYS392, and DYS393) in DNA analysis of sperm samples from 105 vasectomized men. The study demonstrated a great variation in DNA concentration. DNA extraction and amplification was possible in all sperm samples even in the absence of spermatozoa. The same profile was observed, for each individual, from DNA extracted from blood, pre‐ and postvasectomy semen samples. The use of markers specific for Y chromosome in sex crime cases, especially in the absence of spermatozoa, is very important, mainly because in most situations there is a small quantity of the agressor's DNA in the medium and a large quantity of the victim's DNA.     

Cardiac Injuries Caused by Blunt Trauma: An Autopsy Based Assessment of the Injury Pattern

Abstract:  Nonpenetrating chest trauma with injury to the heart and aorta has become increasingly common, particularly as a result of rapid deceleration in high-speed vehicular accidents, over the past 2–3 decades. The high mortality rate of cardiac injuries and possible late onset complications make blunt cardiac injuries an important challenging point for legal medicine. One hundred and ninety cases with blunt cardiac injuries in a period of 3 years were analyzed retrospectively in terms of patterns of cardiac injury, survival times, and demographic profiles of the cases in this study.