The Experts below are selected from a list of 237 Experts worldwide ranked by ideXlab platform
Veronique Alunni - One of the best experts on this subject based on the ideXlab platform.
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Sex determination using the dsp probabilistic Sex Diagnosis method on the coxal bone efficiency of method according to number of available variables
Forensic Science International, 2017Co-Authors: Gerald Quatrehomme, Irina Radoman, Luisa Nogueira, Philippe Du Jardin, Veronique AlunniAbstract:Abstract The DSP method (probabilistic Sex Diagnosis) was applied to100 contemporary coxal bones from elderly individuals of the South of France. Ten variables with a posterior probability greater or equal to a 0.95 threshold were used. There was no statistical difference between right side and left side measurements. There was no mistake for Sex assignment but the level of indetermination varied a great deal. It was higher in females than in males. The best combinations were obtained when using all 10 variables, some combination of 9 variables (all except SS or SIS or VEAC) or the first 8 variables. We conclude that the DSP method is of great interest in forensic anthropology, thanks to a very weak possibility of mistake when using the software for Sex determination of the coxal bone. The main drawback is the level of indetermination that can be high depending on the available variables.
Gerald Quatrehomme - One of the best experts on this subject based on the ideXlab platform.
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Sex determination using the dsp probabilistic Sex Diagnosis method on the coxal bone efficiency of method according to number of available variables
Forensic Science International, 2017Co-Authors: Gerald Quatrehomme, Irina Radoman, Luisa Nogueira, Philippe Du Jardin, Veronique AlunniAbstract:Abstract The DSP method (probabilistic Sex Diagnosis) was applied to100 contemporary coxal bones from elderly individuals of the South of France. Ten variables with a posterior probability greater or equal to a 0.95 threshold were used. There was no statistical difference between right side and left side measurements. There was no mistake for Sex assignment but the level of indetermination varied a great deal. It was higher in females than in males. The best combinations were obtained when using all 10 variables, some combination of 9 variables (all except SS or SIS or VEAC) or the first 8 variables. We conclude that the DSP method is of great interest in forensic anthropology, thanks to a very weak possibility of mistake when using the software for Sex determination of the coxal bone. The main drawback is the level of indetermination that can be high depending on the available variables.
Tara Chapman - One of the best experts on this subject based on the ideXlab platform.
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Validating the probabilistic Sex Diagnosis (DSP) method with a special test case on Pre-Columbian mummies (including the famous Rascar Capac)
Journal of Archaeological Science: Reports, 2020Co-Authors: Tara Chapman, Caroline Tilleux, Caroline Polet, Jean-philippe Hastir, Emmanuel Coche, Serge LemaitreAbstract:Abstract Many museums have either one or more mummies in their collections. The Royal Museums of Art and History in Brussels is no exception and houses several Pre-Columbian mummies, including the one that inspired Herge, author of the Tintin comics, to create the character of ‘Rascar Capac’. The accurate identification of the Sex of a particular mummy is important for testing hypotheses about social structures in ancient societies. Sexing of mummies is mostly based on visual analysis from CT and MRI scans and macroscopic examination from the skeletal tissue such as genitalia and breasts, although skeletal tissue is not always well preserved. Probabilistic Sex Diagnosis (DSP: Diagnose Sexuelle Probabiliste) is a Sex estimation method which has recently proved to be highly effective on different modern human and ancient European populations. The aim of this study was to see if it was possible to apply and validate virtual DSP on a study of four ancient Pre-Columbian mummies from South America (which are outside the reference population of DSP). Virtual DSP was performed in the software ‘lhpFusionBox’. All mummies were CT scanned, 3D models were created and virtual DSP was performed. Sex was determined with a probability of 99.9% or over in all cases (DSP determined one male and three females). Preserved skeletal tissue remains confirmed DSP results in half of the mummies. A Principal Components Analysis (PCA) was performed on the DSP results of the mummies and a modern human (MH) population. Half of the mummies were outside the 95% range of the DSP values of MH, largely due to their smaller size. When size was accounted for, they were within the MH range. The unknown Sex mummies identified as females by DSP were found to be grouped with the known Sex female mummy and the MH females. Similarly, the unknown Sex mummy identified as male by DSP was also found to be grouped with MH males. The use of PCA analysis on DSP results is an effective tool to validate DSP results, even with individuals outside of the reference population. Despite differences in size from ancient to modern humans, DSP was found to be accurate and can be used with mummies and other ancient populations from different countries around the world.
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Sex determination using the Probabilistic Sex Diagnosis (DSP: Diagnose Sexuelle Probabiliste) tool in a virtual environment.
Forensic science international, 2013Co-Authors: Tara Chapman, Philippe Lefevre, Patrick Semal, Fedor Moiseev, Victor Sholukha, Stéphane Louryan, Marcel Rooze, Serge Van Sint JanAbstract:The hip bone is one of the most reliable indicators of Sex in the human body due to the fact it is the most dimorphic bone. Probabilistic Sex Diagnosis (DSP: Diagnose Sexuelle Probabiliste) developed by Murail et al., in 2005, is a Sex determination method based on a worldwide hip bone metrical database. Sex is determined by comparing specific measurements taken from each specimen using sliding callipers and computing the probability of specimens being female or male. In forensic science it is sometimes not possible to Sex a body due to corpse decay or injury. Skeletalization and dissection of a body is a laborious process and desecrates the body. There were two aims to this study. The first aim was to examine the accuracy of the DSP method in comparison with a current visual Sexing method on Sex determination. A further aim was to see if it was possible to virtually utilise the DSP method on both the hip bone and the pelvic girdle in order to utilise this method for forensic sciences. For the first part of the study, forty-nine dry hip bones of unknown Sex were obtained from the Body Donation Programme of the Université Libre de Bruxelles (ULB). A comparison was made between DSP analysis and visual Sexing on dry bone by two researchers. CT scans of bones were then analysed to obtain three-dimensional (3D) virtual models and the method of DSP was analysed virtually by importing the models into a customised software programme called lhpFusionBox which was developed at ULB. The software enables DSP distances to be measured via virtually-palpated bony landmarks. There was found to be 100% agreement of Sex between the manual and virtual DSP method. The second part of the study aimed to further validate the method by analysing thirty-nine supplementary pelvic girdles of known Sex blind. There was found to be a 100% accuracy rate further demonstrating that the virtual DSP method is robust. Statistically significant differences were found in the identification of Sex between researchers in the visual Sexing method although both researchers identified the same Sex in all cases in the manual and virtual DSP methods for both the hip bones and pelvic girdles.
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Sex determination using the Probabilistic Sex Diagnosis (DSP: Diagnose Sexuelle Probabiliste) tool in a virtual environment
Forensic Science International, 2013Co-Authors: Tara Chapman, Philippe Lefevre, Patrick Semal, Fedor Moiseev, Victor Sholukha, Stéphane Louryan, Marcel Rooze, Serge Van Sint JanAbstract:Abstract The hip bone is one of the most reliable indicators of Sex in the human body due to the fact it is the most dimorphic bone. Probabilistic Sex Diagnosis (DSP: Diagnose Sexuelle Probabiliste) developed by Murail et al., in 2005, is a Sex determination method based on a worldwide hip bone metrical database. Sex is determined by comparing specific measurements taken from each specimen using sliding callipers and computing the probability of specimens being female or male. In forensic science it is sometimes not possible to Sex a body due to corpse decay or injury. Skeletalization and dissection of a body is a laborious process and desecrates the body. There were two aims to this study. The first aim was to examine the accuracy of the DSP method in comparison with a current visual Sexing method on Sex determination. A further aim was to see if it was possible to virtually utilise the DSP method on both the hip bone and the pelvic girdle in order to utilise this method for forensic sciences. For the first part of the study, forty-nine dry hip bones of unknown Sex were obtained from the Body Donation Programme of the Universite Libre de Bruxelles (ULB). A comparison was made between DSP analysis and visual Sexing on dry bone by two researchers. CT scans of bones were then analysed to obtain three-dimensional (3D) virtual models and the method of DSP was analysed virtually by importing the models into a customised software programme called lhpFusionBox which was developed at ULB. The software enables DSP distances to be measured via virtually-palpated bony landmarks. There was found to be 100% agreement of Sex between the manual and virtual DSP method. The second part of the study aimed to further validate the method by analysing thirty-nine supplementary pelvic girdles of known Sex blind. There was found to be a 100% accuracy rate further demonstrating that the virtual DSP method is robust. Statistically significant differences were found in the identification of Sex between researchers in the visual Sexing method although both researchers identified the same Sex in all cases in the manual and virtual DSP methods for both the hip bones and pelvic girdles.
Serge Van Sint Jan - One of the best experts on this subject based on the ideXlab platform.
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Sex determination using the Probabilistic Sex Diagnosis (DSP: Diagnose Sexuelle Probabiliste) tool in a virtual environment.
Forensic science international, 2013Co-Authors: Tara Chapman, Philippe Lefevre, Patrick Semal, Fedor Moiseev, Victor Sholukha, Stéphane Louryan, Marcel Rooze, Serge Van Sint JanAbstract:The hip bone is one of the most reliable indicators of Sex in the human body due to the fact it is the most dimorphic bone. Probabilistic Sex Diagnosis (DSP: Diagnose Sexuelle Probabiliste) developed by Murail et al., in 2005, is a Sex determination method based on a worldwide hip bone metrical database. Sex is determined by comparing specific measurements taken from each specimen using sliding callipers and computing the probability of specimens being female or male. In forensic science it is sometimes not possible to Sex a body due to corpse decay or injury. Skeletalization and dissection of a body is a laborious process and desecrates the body. There were two aims to this study. The first aim was to examine the accuracy of the DSP method in comparison with a current visual Sexing method on Sex determination. A further aim was to see if it was possible to virtually utilise the DSP method on both the hip bone and the pelvic girdle in order to utilise this method for forensic sciences. For the first part of the study, forty-nine dry hip bones of unknown Sex were obtained from the Body Donation Programme of the Université Libre de Bruxelles (ULB). A comparison was made between DSP analysis and visual Sexing on dry bone by two researchers. CT scans of bones were then analysed to obtain three-dimensional (3D) virtual models and the method of DSP was analysed virtually by importing the models into a customised software programme called lhpFusionBox which was developed at ULB. The software enables DSP distances to be measured via virtually-palpated bony landmarks. There was found to be 100% agreement of Sex between the manual and virtual DSP method. The second part of the study aimed to further validate the method by analysing thirty-nine supplementary pelvic girdles of known Sex blind. There was found to be a 100% accuracy rate further demonstrating that the virtual DSP method is robust. Statistically significant differences were found in the identification of Sex between researchers in the visual Sexing method although both researchers identified the same Sex in all cases in the manual and virtual DSP methods for both the hip bones and pelvic girdles.
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Sex determination using the Probabilistic Sex Diagnosis (DSP: Diagnose Sexuelle Probabiliste) tool in a virtual environment
Forensic Science International, 2013Co-Authors: Tara Chapman, Philippe Lefevre, Patrick Semal, Fedor Moiseev, Victor Sholukha, Stéphane Louryan, Marcel Rooze, Serge Van Sint JanAbstract:Abstract The hip bone is one of the most reliable indicators of Sex in the human body due to the fact it is the most dimorphic bone. Probabilistic Sex Diagnosis (DSP: Diagnose Sexuelle Probabiliste) developed by Murail et al., in 2005, is a Sex determination method based on a worldwide hip bone metrical database. Sex is determined by comparing specific measurements taken from each specimen using sliding callipers and computing the probability of specimens being female or male. In forensic science it is sometimes not possible to Sex a body due to corpse decay or injury. Skeletalization and dissection of a body is a laborious process and desecrates the body. There were two aims to this study. The first aim was to examine the accuracy of the DSP method in comparison with a current visual Sexing method on Sex determination. A further aim was to see if it was possible to virtually utilise the DSP method on both the hip bone and the pelvic girdle in order to utilise this method for forensic sciences. For the first part of the study, forty-nine dry hip bones of unknown Sex were obtained from the Body Donation Programme of the Universite Libre de Bruxelles (ULB). A comparison was made between DSP analysis and visual Sexing on dry bone by two researchers. CT scans of bones were then analysed to obtain three-dimensional (3D) virtual models and the method of DSP was analysed virtually by importing the models into a customised software programme called lhpFusionBox which was developed at ULB. The software enables DSP distances to be measured via virtually-palpated bony landmarks. There was found to be 100% agreement of Sex between the manual and virtual DSP method. The second part of the study aimed to further validate the method by analysing thirty-nine supplementary pelvic girdles of known Sex blind. There was found to be a 100% accuracy rate further demonstrating that the virtual DSP method is robust. Statistically significant differences were found in the identification of Sex between researchers in the visual Sexing method although both researchers identified the same Sex in all cases in the manual and virtual DSP methods for both the hip bones and pelvic girdles.
Eugenia Cunha - One of the best experts on this subject based on the ideXlab platform.
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Comparative performance of femur and humerus epiphysis for Sex Diagnosis
2020Co-Authors: Sofia N. Wasterlain, Eugenia CunhaAbstract:La determination du Sexe des restes humains endommages et incomplets demeure toujours un des problemes les plus compliques de l'analyse anthropologique des squelettes en raison de la faible fiabilite des methodologies existantes. Dans ce travail, nous verifierons la fiabilite de ces dernieres en les appliquant cependant a un materiel qui se rencontre assez frequemment dans un etat de conservation acceptable - les epiphyses proches du femur et de l'humerus ainsi que celles eloignees de l'humerus. Nous utiliserons un echantillon de 200 squelettes adultes provenant de la Collection des Squelettes Adultes Identifies du Musee Anthropologique de l'Universite de Coimbra, et nous realiserons cinq mesures anthropometriques: les diametres verticaux et transversaux de la tete de l'humerus et du femur et la largeur biepicondylienne de l'humerus. Les points de scission pour chacune de ces dimensions ont ete mesures; et les taux de classement correct obtenus ont ete analyses. En plus, les resultats trouves ont ete compares avec ceux obtenus par l'application des points de scission rapportes par d'autres chercheurs (Stewart, 1979 in Krogman and Iscan, 1986; Pearson et Bell, 1917-1919 in Krogman and Iscan, 1986), sur la base d'autres series de reference.
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dsp a tool for probabilistic Sex Diagnosis using worldwide variability in hip bone measurements
Cahiers Du Centre De Recherches Anthropologiques, 2005Co-Authors: Pascal Murail, Jaroslav Bruzek, Francis Houet, Eugenia CunhaAbstract:Determination of the Sex of human bone remains represents a crucial stage in any palaeoanthropological study. The palaeobiological or palaeoethnological interpretations depend on its reliability. It is acknowledged that the adult hip-bone (os coxae) is by far the best non-population-specific indicator for reliable Sex determination of adults. However, we clarify here a certain number of limitations which lower the reliability and ease of application of the usual methods. We propose a new tool—Probabilistic Sex Diagnosis (DSP: Diagnose Sexuelle Probabiliste)—based on a worldwide hip-bone metrical database (2040 adult specimens of known Sex from 12 different reference populations). Sex is determined by comparing the specimen’s measurements to those from the database and by computing the individual probability of being female or male, from any combination of at least four variables among ten. This method is very easy to learn and apply; it provides Sex Diagnosis for any anatomically modern human, whatever population the specimen belongs to. Numerous combinations allow Sex Diagnosis of either well—preserved hip-bones or damaged ones. DSP is thus useful for both archaeological and forensic purposes. Its accuracy is close to 100%. The DSP computing program is available at the following web link: http://www.pacea.u-bordeaux1.fr/publication/dspv1.html
