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Purkait’s triangle revisited:role in sex and ancestry estimation

Forensic Sciences Research 2022年第3期7卷 440-455页

作者： MennattAllah Hassan Attia Mohamed Hassan Attia Yasmin Tarek Farghaly Bassam Ahmed El-Sayed Abulnoor Sotiris K.Manolis Ruma Purkait Douglas H.Ubelaker Forensic Medicine&Clinical Toxicology Department Faculty of MedicineAlexandria UniversityAlexandriaEgypt Institute for Intelligent Systems Research and Innovation Deakin UniversityVictoriaAustralia Biomedical Engineering Medical Research InstituteAlexandria UniversityAlexandriaEgypt Diagnostic Radiology Faculty of MedicineAlexandria UniversityAlexandriaEgypt Fixed Prosthodontics Faculty of DentistryFayoum UniversityFaiyumEgypt Animal&Human Physiology Faculty of BiologyNational&Kapodistrian University of AthensAthensGreece Department of Anthropology University of AllahabadAllahabadIndia Department of Anthropology Smithsonian InstitutionWashingtonDCUS

Identification of unknown remains recovered from marine and terrestrial locations is a significant humanitarian *** investigation proposes a simple method applicable to fragmentary femora for a more refined level of ancestry and/or sex *** that end,we re-examined Purkait’s triangle which involves three inter-landmark distances between the traction epiphyses and the articular rim of femoral head.A large sample(n=584)from geographically diverse(Egyptian,Indian and Greek)populations was ***,shape(n=3)and trigonometrically derived variables and ratios(n=9 variables)were employed to detect any geographically-clustered morphological differences between these *** forest modelling(RFM)and linear discriminant function analysis(LDA)were employed to create classification models in instances where sex was known or *** sample was apportioned into training and test sets with a ratio 70/*** classification accuracies were evaluated by means of k fold cross-validation *** sex estimation,RFM showed similar performance to ***,RFM outperformed LDA in ancestry *** estimation was satisfactory in the Indian and Egyptian samples albeit the Greek sample was *** Greek samples presented greater morphological overlap with the Indian sample due to high within-group *** samples were accurately assigned to their ancestral category when sex was ***,higher classification accuracies in the validation sample were obtained in the sex-specific model of females than in *** RFM and the linear variables,the overall accuracy reached 83%which is distributed as 95%,71%and 86%for the Egyptian,Indian and Greek females,respectively;whereas in males,the overall accuracy is 72%and is distributed as 58%,87%and 50%for the Egyptian,Indian and Greek males,*** accuracies were also calculated per group in the test data using the 12 derived *** the f

关键词： Forensic sciences forensic anthropology Purkait’s triangle fragmentary femora ancestry estimation random forest modelling international forensic investigations

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Evaluation of ancestry from human skeletal remains: a concise review

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Forensic Sciences Research 2020年第2期5卷 89-97页

作者： Eugenia Cunha Douglas HUbelaker National Institute of Legal Medicine and Forensic Sciences LisbonPortugal Laboratory of Forensic Anthropology Centre for Functional EcologyDepartment of Life SciencesUniversity of CoimbraCoimbraPortugal Department of Anthropology National Museum of Natural HistorySmithsonian InstitutionWashingtonDCUSA

ancestry assessment represents a major component of forensic anthropological analysis of recovered human *** of ancestry,together with other aspects of the biological profile,can help narrow the search of missing persons and contribute to eventual positive *** information can prove useful to authorities involved in the identification and investigative process since many lists of missing persons have a reference to this *** research has strengthened available methodologies involving metric,non-metric morphological as well as chemical and genetic *** review addresses the new anthropological techniques that are now available,as well as the complex historical context related to ancestry evaluation.

关键词： Forensic sciences forensic anthropology ancestry estimation skeletal remains

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