Accuracy of Three Age Estimation Methods in Children by Measurements of Developing Teeth and Carpals and Epiphyses of the Ulna and Radius

Abstract: The aim of this study was to compare the accuracy of three methods for age estimation in children: the measurements of open apices in tooth roots (T), the ratio between the total area of carpal bones and epiphyses of the ulna and radius (HW), and the combined method (THW). The sample consisted of 288 Caucasian Italian children (152 boys and 136 girls) aged between 5 and 15 years. Accuracy was determined as the difference between estimated age and chronological age, and accuracy was assessed by analyzing individuals’ orthopantomograms and hand‐wrist radiographs. Accuracies were 0.41 years for girls and 0.54 years for boys with the THW method; for the HW method, 1.00 years for girls and 0.92 years for boys; and for the T method, 0.62 years for girls and 0.71 years for boys. THW is the most accurate technique for age estimation in these children.     

Dichroism measurements in forensic fibre examination: part 5-pigmented fibres

A number of pigmented fibre samples were examined with plane polarized light on their dichroic behaviour by optical light microscopy (OLM) and microspectrophotometry with plane polarized light (MSP-PPL). It was found that about half of the samples show a strong dichroic effect and another 20% have a weak dichroism. Both regular (80%) and inversed dichroic effects (20%) occur. The dichroic characteristics of pigmented fibres can be compared to these of sheet polarizers. It is suggested that the dichroic behaviour of pigmented fibres depends strongly on the crystal structure (shape of the pigment grains) and the draw ratio (orientation of the polymer chains).     

Palatal rugae as an individualising marker: reliability for forensic odontology and personal identification

Personal identification is based on the comparison between ante mortem and post mortem data which can be considered unique for each individual: palatal rugae represent a useful element for such a comparison, thanks to their apparent low variability with time and unique patterns. Literature however is scarce.This pilot study aims at assessing the reliability of palatal rugae in time and at developing an identification method based on their comparison. Two casts from the upper dental arch of 39 subjects were obtained in different periods of time; at their first cast, 85.2% of patients were less than 16 years old. The second cast was performed after a period of time which varied between 4 and 65 months later than the first cast. The first cast can be taken to simulate ante mortem information, the second post mortem information. Every cast was then digitised with a scanner. In the digital images the palatal rugae were highlighted by using Adobe® Photoshop® 7.0 software; each image was coded and a comparison between “simulated” ante mortem and post mortem data was performed. In all cases ante mortem and post mortem data from the same individual were correctly matched.The study seems to indicate that this technique is highly reliable and user friendly, even on subadults, where growth processes seem not to affect the specific morphology of palatal rugae.     

Delinquency and Crime Among Youths in the Philippines: A Test of Legal Cynicism

The construct of legal cynicism is gaining currency in the United States and other western developed countries in explaining why people break the law. This construct is viable in societies with strong economies and mature political and criminal justice institutions. This paper asks whether the construct of legal cynicism is applicable in societies with differing economic, political and social conditions. Specifically, the paper investigates whether legal cynicism can explain the delinquent behaviors of youths in the Philippines. Despite diligent efforts to duplicate the measures of legal cynicism, the paper finds that this construct is a weak predictor of youth delinquent behaviors. This contradictory finding is explained by looking at the historical and sociopolitical conditions of the country.     

我对主席指示的十大关系的体会和想到的一些意见(一九五六年八月)

毛主席一九五六年四月二十五日在中央政治局扩大会议上所讲的十大关系问题,关系到国内外的各个方面,是具体贯彻党在过渡时期总路线的方针和政策、运用马克思列宁主义观察问题和分析问题的典范.把这十大关系、十大矛盾解决了,就能够动员一切力量、调动一切积极因素,为我国社会主义建设服务.     

“赣南三整”与“三湾改编”比较研究

＂三湾改编＂和＂赣南三整＂是我军初创时期的两次重要的改编,它们对我党军队的建设和发展、第一个农村革命根据地的建立、中国革命道路的探索都曾发挥过重要作用,因此,对＂三湾改编＂和＂赣南三整＂进行比较研究,分析它们的共性和个性,对新时期党的建设及军队建设仍然具有重要的启示意义。     

The scientific foundation of dynamic stochastic general equilibrium (DSGE) models

DSGE-models provide a coherent framework of analysis. This coherence is brought about by restricting acceptable behavior of agents to dynamic utility maximization and rational expectations. The problem of the DSGE-models (and more generally of macroeconomic models based on rational expectations) is that they assume extraordinary cognitive capabilities of individual agents. In addition, these models need a lot of ad-hoc assumptions to make them fit the data. I argue that we need models that take into account the limited cognitive abilities of agents. One can introduce rationality in such models by assuming “trial and error“ learning. I propose such a model and I analyze its implications.