The measurement of open apices of teeth to test chronological age of over 14-year olds in living subjects

Age determination in living subjects is a problem of increasing interest in our community, due to the increasing numbers of individuals without identification papers, who have immigrated illegally or committed crimes, and for whom it is necessary to verify whether they have reached the age of 14 years in order to be charged legally. Although the most widespread methods for age estimation refer to skeletal or dental analysis, these methods do present some drawbacks for identification of the age of 14. The aim of the present study is to discriminate between children who are or are not 14 years of age or older by measuring the open apices of teeth. We evaluated the OPGs of 447 persons aged between 12 and 16 years, of Italian, Croatian and Slovenian nationality. For each individual, dental maturity was estimated using the number of the seven left permanent mandibular teeth with root development complete, and normalized measurement of the open apices of the third molar. The results revealed that an individual is considered to be 14 years of age or older if all seven left permanent mandibular teeth have closed apices and the normalized measurement of open apices of the third molar is lower than 1.1.     

Age estimation using carpals: study of a Slovenian sample to test Cameriere's method

Carpals are often used as age indicators. In a recent study, Cameriere et al. studied the use of the ratio between the total area of carpal bones and epiphyses of the ulna and radius (Bo) and carpals (Ca) as age indicators. The present study, of a sample of 158 Slovenian children and adolescents aged between 6 and 16 years, focused on analysing the best regression for age estimation. The regression model yielded the following equation: age=-3.411+0.942 g+20.927(Bo/Ca), and explained 91.6% of total variance (R(2)=0.916). The median of the absolute values of residuals (observed age minus predicted age) was 0.09 years, with a quartile deviation of 0.786 years, and a standard error of estimate of 0.658 years. Comparisons between the previous equation referring to Slovenian children and the equivalent linear equation proposed by Cameriere et al. did not reveal any significant differences between the intercepts and slopes of the two linear models. These results suggested a common regression model for both Italian and Slovenian samples. The common regression model, describing age as a linear function of gender and Bo/Ca ratio, yielded the following linear regression formula: age=-2.907+0.408 g+20.757(Bo/Ca). This model explained 86% of total variance (R(2)=0.86). The median of the absolute values of residuals (observed age minus predicted age) was 0.02 years, with a quartile deviation of 1.02 years and a standard error of estimate of 0.96 years.     

Policy Failure in the Triangle of Growth: Labour Market,Human Capital,and Innovation in Spain and Italy

This article focuses on the Italian and Spanish models of growth and analyses labour market, human capital and innovation policy reforms since the mid 1990s. The comparison with France and Germany shows the constraints that have hindered the rise of institutional complementarities and the competitiveness of the two Mediterranean countries already before the introd uction of the euro and the outbreak of the 2008 crisis. The analysis highlights both similarities and structural differences between Italy and Spain and demonstrates the long-term institutional conditions that explain why the economic breakdown has had such a deep impact on the two countries.     

Intentional Homicide: A Fifteen-Year Study (2000–2014) at the Department of Forensic Medicine,University of Rome “Sapienza”

This study analyzes postmortem records from 260 homicide cases autopsied by the Department of Forensic Medicine in Rome from 2000 to 2014. The victims were mainly males (74%) and young (61% aged from 21 to 50 years). Although the victims were mostly Italians, the number of foreign victims (33%) has increased since 1990, primarily due to immigration. The offenders frequently used firearms (39%), particularly in multiple murders. An increase in blunt (20%) and sharp force (32%) weapons was also seen. The primary crime scene was residential (42%), and the head was the most frequently injured body region. Male victims occurred frequently in the context of organized crime (7.6%). In family or intimate-sexual relationships, women were the majority of victims (8%). Forensic pathologists play an important role during investigation. They should consider all the information available to them, including autopsy information, crime scene information, and crime investigation data.     

Analysis of Frontal Sinuses for Personal Identification in a Chinese Sample Using a New Code Number

The study of frontal sinuses for personal identification is a considered approach in the forensic field. In Yoshino's system, the frontal sinus patterns of a given person were formulated as a code number (codY) obtained by arranging the class numbers in each classification item. The aim of this work was to use a new code number (codC) with eight digits that includes other two continuous variables obtained as ratios SOR₁ (left frontal sinus area/left orbit area) and SOR₂ (right frontal sinus area/right orbit area), comparing the results with that of Yoshino. Digital radiographic images of the skulls of 150 Chinese people were analyzed. Spearman's partial correlation coefficients were evaluated between variables characterizing frontal sinus patterns. We used a maximum-weight dependence tree for statistical analysis. Results demonstrated that codC significantly reduced the probability of having the same personal code number compared with codY. Our scientific approach results valid for personal identification purposes.     

Terrorism and international political analysis∗

Abstract

The international spread of terrorism requires more careful study of its ability to influence the international order. Therefore, it is first of all necessary to distinguish the purposes for which terrorism is set up on the international level, also exactly assessing its actual transnational links. In this way, it will be possible to proceed toward a comparative analysis of terrorism in different regions of the international system. The purpose of such an analysis is to evaluate the influence that terrorism has, from the methodological standpoint, on the studies of the international system and, from the substantial standpoint, on the actual ability of terrorism to weaken that very system. Clarifying the implications of these aspects, the conclusion will be a reflection on the causal relationship that links terrorism and the international system; the former is a consequence of the nature of the latter, caused by the immobility of the international system, and hence by the blocked situation that faces anyone who wants to modify the international order.     

A BPA Approach to the Shroud of Turin

An investigation into the arm and body position required to obtain the blood pattern visible in the image of the Shroud of Turin was performed using a living volunteer. The two short rivulets on the back of the left hand of the Shroud are only consistent with a standing subject with arms at a ca 45° angle. This angle is different from that necessary for the forearm stains, which require nearly vertical arms for a standing subject. The BPA of blood visible on the frontal side of the chest (the lance wound) shows that the Shroud represents the bleeding in a realistic manner for a standing position while the stains at the back—of a supposed postmortem bleeding from the same wound for a supine corpse—are totally unrealistic. Simulation of bleeding from the nail wounds contacting wood surfaces yielded unclear results.     

The contract theory of patents

Two distinct theories of patents, the “reward theory” and the “contract theory,” are customarily adopted by the courts to justify the patent system. The reward theory maintains that the function of the patent system is to remunerate successful innovators so as to encourage R&D effort. In contrast, the contract theory holds that the function of the patent system is to promote the diffusion of innovative knowledge. Assuming that in the absence of patent protection innovators would rely on trade secrecy, it views patents as a contract between innovators and society whereby a property right is granted in exchange for disclosure.This paper develops an economic analysis of the contract theory of patents. To disentangle the disclosure from the reward motive for granting patents, we assume that the innovation process is entirely serendipitous, so that R&D effort is not a concern. Our main finding is that the disclosure motive alone suffices to justify the grant of patents. The optimal patent duration should strike a balance between the incentive to induce disclosure and the aim of limiting the monopoly distortion induced by patents.