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Forensic Anthropology

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https://www.readbyqxmd.com/read/28770383/age-estimation-at-death-using-pubic-bone-analysis-of-a-virtual-reference-sample
#1
Frédéric Savall, Fabrice Hérin, Pierre Antoine Peyron, Daniel Rougé, Eric Baccino, Pauline Saint-Martin, Norbert Telmon
Age at death estimation is a major part of forensic anthropology, but is often poor in the latter decades of life and should benefit from specific population standards. The aim of this study was to test a virtual reference sample with a uniform age distribution in order to improve the accuracy of age estimation for individuals over 40 years of age. We retrospectively built a random virtual reference sample of pubic symphyses from 1100 clinical cases using computed tomography at two French hospitals; this was compared with a test sample (pubic symphyses from 75 corpses undergoing post-mortem computed tomography at a French forensic department) and with the sample originally used in the Suchey-Brooks (SB) system...
August 2, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28756305/age-assessment-in-canine-and-premolar-by-cervical-axial-sections-of-cone-beam-computed-tomography
#2
Hichem Nemsi, Nidhal Haj Salem, Ines Bouanene, Sami Ben Jomaa, Meriem Belhadj, Mohamed Amin Mosrati, Abir Aissaoui, Faten Ben Amor, Ali Chadly
Age estimation in adults is a challenge in both anthropological and forensic situations compared to sub-adults age estimation. The present study explored, for the first time, the cervical zone of single rooted teeth. The deposition of secondary dentin is responsible for a decrease in the volume of the dental pulp cavity with aging, and therefore is often used as an age indicator. The current study aimed at estimating the chronological age among adults by measuring the pulp/dentin area ratio (physiological ratio) by axial sections at cervical region of maxillary canine and mandibular second premolar...
July 21, 2017: Legal Medicine
https://www.readbyqxmd.com/read/28754995/genetic-variation-and-population-structure-of-botswana-populations-as-identified-with-ampflstr-identifiler-short-tandem-repeat-str-loci
#3
Tiroyamodimo Tau, Anthony Wally, Thokozile Patricia Fanie, Goitseone Lorato Ngono, Sununguko Wata Mpoloka, Sean Davison, María Eugenia D'Amato
Population structure was investigated in 990 Botswana individuals according to ethno-linguistics, Bantu and Khoisan, and geography (the nine administrative districts) using the Identifiler autosomal microsatellite markers. Genetic diversity and forensic parameters were calculated for the overall population, and according to ethno-linguistics and geography. The overall combined power of exclusion (CPE) was 0.9999965412 and the combined match probability 6,28 × 10(-19). CPE was highest for the Khoisan Tuu ethnolinguistic group and the Northeast District at 0...
July 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28751237/a-large-modern-southeast-asian-human-skeletal-collection-from-thailand
#4
Nawaporn Techataweewan, Panya Tuamsuk, Yanyong Toomsan, Worawut Woraputtaporn, Parichat Prachaney, Nancy Tayles
The Khon Kaen University Human Skeleton Research Centre has a large human collection consisting of 745 modern northeastern Thai (Isan) skeletons derived from bodies bequeathed to the Department of Anatomy during the period 1979-2014. The aim of this paper is to document the collection and address the question of whether the collection may be representative of local Isan people, or populations of the wider region of mainland Southeast Asia. This will determine its value as a reference collection for forensic anthropology in particular but also for all other fields of research about human skeletal biology...
July 3, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28742485/a-new-morphological-trait-in-forensic-identification-middle-phalangeal-hair-mph
#5
Kewal Krishan, Tanuj Kanchan
Middle phalangeal hairs (MPH) are present on the dorsal aspect of the middle phalange of the fingers except for the thumb. The MPH have been of interest to anthropologists, human biologists, clinicians, geneticists and anatomists in the past as a morphological trait of the human body. The anthropological value of MPH is well established in studying population variations, with implications for age, ancestry and sex differences. We are of the opinion that MPH may be used significantly for forensic identification purposes along with other morphological characteristics of the human body...
December 1, 2016: Science Progress
https://www.readbyqxmd.com/read/28721987/evaluation-of-occlusal-groove-patterns-of-mandibular-first-and-second-molars-in-an-indian-population-a-forensic-anthropological-study
#6
Rashmi Gs Phulari, Rajendrasinh Rathore, Mili D Takvani, Shivani Jain
BACKGROUND: The study of dental morphological characteristics is important in anthropological research as it can provide information on the phylogenetic relationship between species, as well as variations and diversities within a population. AIMS AND OBJECTIVES: To determine the prevalence of six types of mandibular second molars in Gujarat state and the results can be used in both forensic anthropological researches and clinical aspects of dental sciences. MATERIALS AND METHODS: This descriptive investigation was undertaken among 1000 students (13-25 years old) in high schools and dental institutes of Gujarat state...
May 2017: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/28714560/validation-and-reliability-of-the-sex-estimation-of-the-human-os-coxae-using-freely-available-dsp2-software-for-bioarchaeology-and-forensic-anthropology
#7
Jaroslav Brůžek, Frédéric Santos, Bruno Dutailly, Pascal Murail, Eugenia Cunha
OBJECTIVES: A new tool for skeletal sex estimation based on measurements of the human os coxae is presented using skeletons from a metapopulation of identified adult individuals from twelve independent population samples. For reliable sex estimation, a posterior probability greater than 0.95 was considered to be the classification threshold: below this value, estimates are considered indeterminate. By providing free software, we aim to develop an even more disseminated method for sex estimation...
July 17, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28706489/difference-in-striae-periodicity-of-heilongjiang-and-singaporean-chinese-teeth
#8
Sharon H X Tan, Yu Fan Sim, Chin-Ying S Hsu
Striae periodicity refers to the number of cross-striations between successive lines of Retzius in tooth enamel. A regular time dependency of striae periodicity, known as the circaseptan interval, has been proposed. Previous studies on striae periodicity have been carried out on both modern and early humans given its potential applications in forensic age estimations and anthropology. Nevertheless, research comparing striae periodicities across gender groups and populations in different geographical locations, particularly in Asia, is lacking...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28704439/inner-and-inter-population-structure-construction-of-chinese-jiangsu-han-population-based-on-y23-str-system
#9
Huipin Wang, Huajie Ba, Chun Yang, Jianqiu Zhang, Yunchun Tai
In this study, we analyzed the genetic polymorphisms of 23 Y-STR loci from PowerPlex® Y23 system in 916 unrelated healthy male individuals from Chinese Jiangsu Han, and observed 912 different haplotypes including 908 unique haplotypes and 4 duplicate haplotypes. The haplotype diversity reached 0.99999 and the discrimination capacity and match probability were 0.9956 and 0.0011, respectively. The gene diversity values ranged from 0.3942 at DYS438 to 0.9607 at DYS385a/b. Population differentiation within 10 Jiangsu Han subpopulations were evaluated by RST values and visualized in Neighbor-Joining trees and Multi-Dimensional Scaling plots as well as population relationships between the Jiangsu Han population and other 18 Eastern Asian populations...
2017: PloS One
https://www.readbyqxmd.com/read/28697737/radiologic-evaluation-of-orbital-index-among-ghanaians-using-ct-scan
#10
Benard Ohene Botwe, Derick Seyram Sule, Abdul Mumin Ismael
BACKGROUND: Orbital index (OI) expresses the proportion of the orbital height to the orbital width and varies with race, regions within the same race and periods in evolution. This index is useful in forensic medicine, anthropology and surgery. However, the average OI among Ghanaian adults was unknown. AIM: The aim of this study was to determine the orbital index of adult Ghanaians and classify them under one of the three predetermined groups. METHOD: The study design was a retrospective cross-sectional...
July 11, 2017: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/28691915/forensic-individual-age-estimation-with-dna-from-initial-approaches-to-methylation-tests
#11
REVIEW
A Freire-Aradas, C Phillips, M V Lareu
Individual age estimation is a key factor in forensic science analysis that can provide very useful information applicable to criminal, legal, and anthropological investigations. Forensic age inference was initially based on morphological inspection or radiography and only later began to adopt molecular approaches. However, a lack of accuracy or technical problems hampered the introduction of these DNA-based methodologies in casework analysis. A turning point occurred when the epigenetic signature of DNA methylation was observed to gradually change during an individual´s lifespan...
July 2017: Forensic Science Review
https://www.readbyqxmd.com/read/28678377/cascading-bias-of-initial-exposure-to-information-at-the-crime-scene-to-the-subsequent-evaluation-of-skeletal-remains
#12
Sherry Nakhaeizadeh, Ruth M Morgan, Carolyn Rando, Itiel E Dror
Thirty-eight participants took part in a study that investigated the potential cascading effects of initial exposure to extraneous context upon subsequent decision-making. Participants investigated a mock crime scene, which included the excavation of clandestine burials that had a male skeletal cast dressed either in female or gender neutral clothing. This was followed by a forensic anthropological assessment of the skeletal remains, with a control group assessing the same male skeletal cast without any clothing context...
July 5, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28666560/worldwide-population-variation-in-pelvic-sexual-dimorphism-a-validation-and-recalibration-of-the-klales-et-al-method
#13
Michael W Kenyhercz, Alexandra R Klales, Kyra E Stull, Kyle A McCormick, Stephanie J Cole
Sex estimation is an integral aspect of biological anthropology. Correctly estimating sex is the first step to many subsequent analyses, such as estimating living stature or age-at-death. Klales et al. (2012) [6] provided a revised version of the Phenice (1969) [3] method that expanded the original three traits (ventral arc, subpubic concavity/contour, and medial aspect of the ischio-pubic ramus) into five character states to capture varying degrees of expression within each trait. The Klales et al. (2012) [6] method also provided associated probabilities with each sex classification, which is of particular importance in forensic anthropology...
May 8, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28654195/dynamics-of-the-oral-microbiota-as-a-tool-to-estimate-time-since-death
#14
Joe Adserias Garriga, Narciso M Quijada, Marta Hernandez, David Rodríguez Lázaro, Dawnie Steadman, Jesús Garcia-Gil
Oral cavity harbors one of the most diverse microbiomes in the human body. It has been shown to be the second most complex in the body after the gastro- intestinal tract. Upon death, the indigenous microorganisms lead the decomposition of the carcass. Therefore, oral cavity and gastro-intestinal tract microbiomes, play a key role in human decomposition. The aim of the present study is to monitor the microbiome of decaying bodies on a daily basis and to identify signature bacterial taxa, that can improve postmortem interval estimation...
June 27, 2017: Molecular Oral Microbiology
https://www.readbyqxmd.com/read/28635867/-the-investigations-into-the-amino-acid-composition-of-the-tooth-for-the-purpose-of-forensic-medical-personality-identification
#15
Yu I Pigolkin, G V Zolotenkova, P S Velenko, B N Izotov
The increasingly greater requirements for the new approaches to the forensic medical personality identification necessitate the extensive search for and the development of the precise methods enabling the experts to determine the general personality signs in the cases of mass mortality and the large number of victims with the conspicuous post-mortem changes in their appearance including those associated with putrefaction and strong fragmentation of the bodies. This article presents the analytical review demonstrating that determination of the victims' age in the combination with the analysis of the amino acid composition of dental tissues provides a promising tool for the investigations not only in the fields of archeology and anthropology but also for the purpose of personality identification in forensic medicine...
2017: Sudebno-meditsinskaia Ekspertiza
https://www.readbyqxmd.com/read/28634680/stability-of-upper-face-sexual-dimorphism-in-central-european-populations-czech-republic-during-the-modern-age
#16
Šárka Bejdová, Ján Dupej, Václav Krajíček, Jana Velemínská, Petr Velemínský
One of the most fundamental issues in forensic anthropology is the determination of sex and population affinity based on various skeletal elements. Therefore, we compared the sexual dimorphism of the upper facial skeleton from a recent Czech population (twenty-first century) with that of a population from Early Modern Age Bohemia (sixteenth to eighteenth centuries). Methods of geometric morphometrics were applied. According to the results, sexual dimorphism in terms of size, shape, and form was statistically significant in both populations...
June 21, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28613039/sex-estimation-standards-for-medieval-and-contemporary-croats
#17
Željana Bašić, Ivana Kružić, Ivan Jerković, Deny Anđelinović, Šimun Anđelinović
AIM: To develop discriminant functions for sex estimation on medieval Croatian population and test their application on contemporary Croatian population. METHODS: From a total of 519 skeletons, we chose 84 adult excellently preserved skeletons free of antemortem or postmortem changes and took all standard measurements. Sex was estimated/determined using standard anthropological procedures and ancient DNA (amelogenin analysis) where pelvis was insufficiently preserved or where sex morphological indicators were not consistent...
June 14, 2017: Croatian Medical Journal
https://www.readbyqxmd.com/read/28612898/sex-estimation-by-femur-in-modern-thai-population
#18
T Monum, S Prasitwattanseree, S Das, P Siriphimolwat, P Mahakkanukrauh
Sex estimation is an important step of postmortem investigation and the femur is a useful bone for sex estimation by using metric analysis method. Even though there have been a reported sex estimation method by using femur in Thais, the temporal change related to time and anthropological data need to be renewed. Thus the aim of this study is to re-evaluate sex estimation by femur in Thais. 97 adult male and 103 female femora were random chosen from Forensic osteology research center and 6 measurements were applied tend to...
May 2017: La Clinica Terapeutica
https://www.readbyqxmd.com/read/28606333/sex-estimation-from-the-scapula-in-a-contemporary-thai-population-applications-for-forensic-anthropology
#19
Tanya R Peckmann, Shelby Scott, Susan Meek, Pasuk Mahakkanukrauh
The impact of climate change is estimated to be particularly severe in Thailand. Overall, the country faces an increase in surface temperatures, severe storms and floods, and a possible increase in the number of mass disasters in the region. It is extremely important that forensic scientists have access to sex estimation methods developed for use on a Thai population. The goal of this project is to evaluate the accuracy of sex estimation discriminant functions, created using contemporary Mexican and Greek populations, when applied to a contemporary Thai sample...
July 2017: Science & Justice: Journal of the Forensic Science Society
https://www.readbyqxmd.com/read/28560543/bone-and-soft-tissue-histology-a-new-approach-to-determine-characteristics-of-offending-instrument-in-sharp-force-injuries
#20
Tania Delabarde, Catherine Cannet, Jean Sébastien Raul, Annie Géraut, Marc Taccoen, Bertrand Ludes
This paper describes a new approach to determine characteristics of the implement used to inflict trauma which involves the histological analysis of exogenous particles. Based on Locard's principle "every contact leaves a trace," we decided to assess whether histological examination of bone and soft tissue around a penetrating injury (sharp force trauma) could provide evidence of the offending implement. Case reports and experimental studies have demonstrated the potential of cut mark features in bone to identify the causative implement and potentially assist in identifying the perpetrator...
May 30, 2017: International Journal of Legal Medicine
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