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Forensic Anthropology

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https://www.readbyqxmd.com/read/28547887/quantifying-sexual-dimorphism-in-the-human-cranium-a-preliminary-analysis-of-a-novel-method
#1
Ana M Casado
In forensic anthropology, sexually dimorphic cranial features are traditionally visually assessed and scored using an ordinal scale, which is highly subjective. This study quantifies six cranial features using original three-dimensional coordinate measurements to provide greater accuracy in sex estimation. Cranial features include supraorbital ridges, glabella, external occipital protuberance, nuchal protuberances, mastoid processes, and frontal bosses. Measurements were taken using coordinate calipers from 158 White and Black male and female crania from the Maxwell Documented Collection at University of New Mexico and Tennessee's Bass Collection...
May 26, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28534146/detection-of-glass-particles-on-bone-lesions-using-sem-eds
#2
Romain Montoriol, Céline Guilbeau-Frugier, Elodie Chantalat, Mathieu Roumiguié, Marie-Bernadette Delisle, Bruno Payré, Norbert Telmon, Frédéric Savall
The problem of identifying the wounding agent in forensic cases is recurrent. Moreover, when several tools are involved, distinguishing the origin of lesions can be difficult. Scanning electron microscopy (SEM)/energy dispersive X-ray analysis (EDS) equipment is increasingly available to the scientific and medical community, and some studies have reported its use in forensic anthropology. However, at our knowledge, no study has reported the use of SEM-EDS in forensic cases involving glass tools, whether in case reports or experiments...
May 23, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28511513/sexual-dimorphism-of-maxillary-sinus-a-morphometric-analysis-using-cone-beam-computed-tomography
#3
Ayeesha Urooge, Bharati A Patil
INTRODUCTION: Age and sex determination in forensic sciences are primary components of any skeletal analysis. As most bones used for sex determination are recovered in incomplete state, it is often necessary to use bones that are recovered intact e.g., the maxillary sinus. Cone Beam Computed Tomography (CBCT) can provide precise information about complex anatomical structures, as it is characterized by rapid volumetric image acquisition with high resolution. AIM: The present study was designed to evaluate the size and volume of Maxillary Sinus (MS) in determining gender by CBCT...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28511408/estimation-of-total-length-of-femur-from-its-proximal-and-distal-segmental-measurements-of-disarticulated-femur-bones-of-nepalese-population-using-regression-equation-method
#4
Laxman Khanal, Sandip Shah, Sarun Koirala
INTRODUCTION: Length of long bones is taken as an important contributor for estimating one of the four elements of forensic anthropology i.e., stature of the individual. Since physical characteristics of the individual differ among different groups of population, population specific studies are needed for estimating the total length of femur from its segment measurements. AIM: Since femur is not always recovered intact in forensic cases, it was the aim of this study to derive regression equations from measurements of proximal and distal fragments in Nepalese population...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28507860/aging-and-sexual-differences-of-the-human-skull
#5
Luiz Eduardo Toledo Avelar, Márcio Alberto Cardoso, Leonardo Santos Bordoni, Lorena de Miranda Avelar, João Victor de Miranda Avelar
BACKGROUND: The aging process of the face comprises all layers: skin, subcutaneous fat, muscles, and skeleton, and the signs of aging depend mainly on which layer is mostly affected. OBJECTIVE: To evaluate the aging facial skeleton, as well as establish the sexual differences, areas with a strong predisposition to resorption, and aesthetic repercussion for better treatment approach. METHODS: Skulls from the Forensic Anthropology Department of the Institute of Forensic Medicine of Belo Horizonte, Brazil, were classified according to gender and age group (i...
April 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28500464/global-skin-colour-prediction-from-dna
#6
Susan Walsh, Lakshmi Chaitanya, Krystal Breslin, Charanya Muralidharan, Agnieszka Bronikowska, Ewelina Pospiech, Julia Koller, Leda Kovatsi, Andreas Wollstein, Wojciech Branicki, Fan Liu, Manfred Kayser
Human skin colour is highly heritable and externally visible with relevance in medical, forensic, and anthropological genetics. Although eye and hair colour can already be predicted with high accuracies from small sets of carefully selected DNA markers, knowledge about the genetic predictability of skin colour is limited. Here, we investigate the skin colour predictive value of 77 single-nucleotide polymorphisms (SNPs) from 37 genetic loci previously associated with human pigmentation using 2025 individuals from 31 global populations...
May 12, 2017: Human Genetics
https://www.readbyqxmd.com/read/28495330/relationships-between-age-and-microarchitectural-descriptors-of-iliac-trabecular-bone-determined-by-microct
#7
C Deguette, A Ramond-Roquin, C Rougé-Maillart
AIM: Estimation of age at death is a major issue in anthropology. The main anthropological histological methods propose studying the architecture of cortical bone. In bone histomorphometry, researches on metabolic bone diseases have provided normative tables for trabecular bone volume (BV/TV) according to age and gender of individuals on trans-iliac bone biopsies. We have used microCT, a non-destructive tool for measuring bone volume and trabecular descriptors to compare the French tables to a series of forensic anthropological population and if the two iliac bones could be used interchangeably...
May 8, 2017: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/28464294/skeletal-indicators-of-shark-feeding-on-human-remains-evidence-from-florida-forensic-anthropology-cases
#8
Michala K Stock, Allysha P Winburn, George H Burgess
This research examines a series of six Florida forensic anthropology cases that exhibit taphonomic evidence of marine deposition and shark-feeding activities. In each case, we analyzed patterns of trauma/damage on the skeletal remains (e.g., sharp-force bone gouges and punctures) and possible mechanisms by which they were inflicted during shark predation/scavenging. In some cases, shark teeth were embedded in the remains; in the absence of this evidence, we measured interdental distance from defects in the bone to estimate shark body length, as well as to draw inferences about the potential species responsible...
May 2, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28460352/characterization-of-nist-human-mitochondrial-dna-srm-2392-and-srm-2392-i-standard-reference-materials-by-next-generation-sequencing
#9
Sarah Riman, Kevin M Kiesler, Lisa A Borsuk, Peter M Vallone
Standard Reference Materials SRM 2392 and 2392-I are intended to provide quality control when amplifying and sequencing human mitochondrial genome sequences. The National Institute of Standards and Technology (NIST) offers these SRMs to laboratories performing DNA-based forensic human identification, molecular diagnosis of mitochondrial diseases, mutation detection, evolutionary anthropology, and genetic genealogy. The entire mtGenome (∼16569bp) of SRM 2392 and 2392-I have previously been characterized at NIST by Sanger sequencing...
April 15, 2017: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/28449842/critical-issues-in-the-historical-and-contemporary-development-of-forensic-anthropology-in-australia-an-international-comparison
#10
Xanthé Mallett, Martin P Evison
The aim of this brief critical qualitative analysis is to examine the development of forensic anthropology in Australia, at a time of significant change in the discipline. It will briefly summarise its historical establishment, making comparative reference to other regions-particularly the United Kingdom and United States, and the influence of the Bali Bombings of 2002, Indian Ocean earthquake and tsunami of 2004 and Black Saturday Bushfires of 2009. The analysis goes on to consider key factors in research in forensic anthropology in the United States, and the development of standards and regulation in the US and UK...
March 31, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28414985/sharp-and-blunt-force-trauma-concealment-by-thermal-alteration-in-homicides-an-in-vitro-experiment-for-methodology-and-protocol-development-in-forensic-anthropological-analysis-of-burnt-bones
#11
Ioana Macoveciuc, Nicholas Márquez-Grant, Ian Horsfall, Peter Zioupos
Burning of human remains is one method used by perpetrators to conceal fatal trauma and expert opinions regarding the degree of skeletal evidence concealment are often disparate. This experiment aimed to reduce this incongruence in forensic anthropological interpretation of burned human remains and implicitly contribute to the development of research methodologies sufficiently robust to withstand forensic scrutiny in the courtroom. We have tested the influence of thermal alteration on pre-existing sharp and blunt trauma on twenty juvenile sheep radii in the laboratory using an automated impact testing system and an electric furnace...
March 29, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28391747/a-foetal-tile-from-an-archaeological-site-anthropological-investigation-of-human-remains-recovered-in-a-medieval-cemetery-in-northern-italy
#12
Marta Licata, Chiara Rossetti, Adelaide Tosi, Paola Badino
BACKGROUND: The recovery of foetal remains is very sporadic in archaeology, especially due the scarce degree of bone mineralisation. This paper presents the singular archaeological discovery of a foetal tile preserving the bone remains, object of our anthropological examination. MATERIALS AND METHODS: The foetal tile was discovered during an archaeological excavation in a medieval site (Northern Italy). The tile was analysed by CT scan and later, human remains were anthropologically examined...
April 24, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28362021/sexual-dimorphism-in-base-of-skull
#13
Anabel Amores-Ampuero
Sex determination is an important task in forensic medicine and physical anthropology. The aims of this study were to assess the presence of sexual dimorphism in the base of the skull and to compare the accuracy of sex estimation by this method with that achieved in other metric studies of this region. The sample comprised 109 individuals (53 males and 56 females) of known sex, age, and cause of death from San José cemetery in Granada (Spain). Six dimensions were analyzed and discriminant function analysis was performed...
January 26, 2017: Anthropologischer Anzeiger; Bericht über die Biologisch-anthropologische Literatur
https://www.readbyqxmd.com/read/28261788/introducing-human-mandible-identification-hu-manid-a-free-web-based-gui-to-classify-human-mandibles
#14
Gregory E Berg, Michael W Kenyhercz
Statistical programs have revolutionized the way in which forensic anthropologists conduct casework by allowing practitioners to use computationally complex analytics at the click of a button. Importantly, the products of these statistical programs are reproducible and contain measures of error or uncertainty, thereby strengthening conclusions. This paper is an introduction to (hu)MANid, a free, web-based application that uses linear and mixture discriminant function analyses to classify human mandibles into one of many worldwide and/or periodic reference groups...
March 6, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28249201/genome-wide-screening-for-highly-discriminative-snps-for-personal-identification-and-their-assessment-in-world-populations
#15
Liming Li, Yi Wang, Shuping Yang, Mingying Xia, Yajun Yang, Jiucun Wang, Daru Lu, Xingwei Pan, Teng Ma, Pei Jiang, Ge Yu, Ziqin Zhao, Yuan Ping, Huaigu Zhou, Xueying Zhao, Hui Sun, Bing Liu, Dongtao Jia, Chengtao Li, Rile Hu, Hongzhou Lu, Xiaoyang Liu, Wenqing Chen, Qin Mi, Fuzhong Xue, Yongdong Su, Li Jin, Shilin Li
The applications of DNA profiling aim to identify perpetrators, missing family members and disaster victims in forensic investigations. Single nucleotide polymorphisms (SNPs) based forensic applications are emerging rapidly with a potential to replace short tandem repeats (STRs) based panels which are now being used widely, and there is a need for a well-designed SNP panel to meet such challenge for this transition. Here we present a panel of 175 SNP markers (referred to as Fudan ID Panel or FID), selected from ∼3...
February 16, 2017: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/28244105/a-computational-framework-for-age-at-death-estimation-from-the-skeleton-surface-and-outline-analysis-of-3d-laser-scans-of-the-adult-pubic-symphysis
#16
Detelina K Stoyanova, Bridget F B Algee-Hewitt, Jieun Kim, Dennis E Slice
In forensic anthropology, age-at-death estimation typically requires the macroscopic assessment of the skeletal indicator and its association with a phase or score. High subjectivity and error are the recognized disadvantages of this approach, creating a need for alternative tools that enable the objective and mathematically robust assessment of true chronological age. We describe, here, three fully computational, quantitative shape analysis methods and a combinatory approach that make use of three-dimensional laser scans of the pubic symphysis...
February 28, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28242603/optimization-and-validation-of-analysis-method-based-on-27-plex-snp-panel-for-ancestry-inference
#17
Jiang Li, Sun Qifan, Ma Quan, Zhao Wenting, Liu Jing, Zhao Lei, Ji Anquan, Li Caixia
Anthropology generally divides the individuals into the East Asian Mongolia race, European Caucasian race and African Nigro race. The 27-plex single nucleotide polymorphism (SNP) panel for ancestry information has been established to differentiate samples from East Asian, European, African and admixture populations of East Asian and European origin by genotyping and ancestry inference. To infer ancestry for unknown individuals, we established an optimized analysis pipeline based on the likelihood ratio, ancestry component and individual ancestry assignment...
February 20, 2017: Yi Chuan, Hereditas
https://www.readbyqxmd.com/read/28237440/the-precision-of-micro-tomography-in-bone-taphonomic-experiments-and-the-importance-of-registration
#18
Erwan Le Garff, Vadim Mesli, Yann Delannoy, Thomas Colard, Julien De Jonckheere, Xavier Demondion, Valéry Hédouin
Micro-computed tomography (μCT) provides micrometric 3D images and has been used in forensic studies for anthropology pubis measurement or insect description for post mortem interval estimation. Studies have suggested using registration, a superimposing images method between a reference and a target. This technique avoids positioning bias and increase the precision of μCT. However, no clear study has reported the precision with μCT analysis before or after registration in a forensic field. One fresh post mortem sample of a human cranial vault was collected...
February 15, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28230893/the-effect-of-body-mass-on-outdoor-adult-human-decomposition
#19
Lindsey G Roberts, Jessica R Spencer, Gretchen R Dabbs
Forensic taphonomy explores factors impacting human decomposition. This study investigated the effect of body mass on the rate and pattern of adult human decomposition. Nine males and three females aged 49-95 years ranging in mass from 73 to 159 kg who were donated to the Complex for Forensic Anthropology Research between December 2012 and September 2015 were included in this study. Kelvin accumulated degree days (KADD) were used to assess the thermal energy required for subjects to reach several total body score (TBS) thresholds: early decomposition (TBS ≥6...
February 23, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28213907/optimizing-the-analysis-of-dental-enamel-microstructure-in-intact-teeth
#20
Zulieth López Arrieta, Sergio Roberto Peres Line
In most mammalian species enamel prisms are regularly arranged in layers of alternating directions forming an angle of approximately 90°. These successive layers of prisms are known as Hunter-Schreger bands (HSBs). The analysis of HSBs may provide valuable information regarding the species life history, taxon and personal identification, with evident applicability in physical anthropology and forensics. Obtaining good quality digital images of HSBs in intact specimens is not always a feasible task. The major problems are the low contrast of images; the reflection of incident light, which may create areas of intense shine in digital images; and the abrupt decrease in the degree of illumination that occurs after light crosses the vertical cracks, frequently present in enamel...
February 17, 2017: Microscopy Research and Technique
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