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https://www.readbyqxmd.com/read/27924949/genetic-evidence-for-an-east-asian-origin-of-chinese-muslim-populations-dongxiang-and-hui
#1
Hong-Bing Yao, Chuan-Chao Wang, Xiaolan Tao, Lei Shang, Shao-Qing Wen, Bofeng Zhu, Longli Kang, Li Jin, Hui Li
There is a long-going debate on the genetic origin of Chinese Muslim populations, such as Uygur, Dongxiang, and Hui. However, genetic information for those Muslim populations except Uygur is extremely limited. In this study, we investigated the genetic structure and ancestry of Chinese Muslims by analyzing 15 autosomal short tandem repeats in 652 individuals from Dongxiang, Hui, and Han Chinese populations in Gansu province. Both genetic distance and Bayesian-clustering methods showed significant genetic homogeneity between the two Muslim populations and East Asian populations, suggesting a common genetic ancestry...
December 7, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27924407/muscidae-diptera-of-forensic-importance-an-identification-key-to-third-instar-larvae-of-the-western-palaearctic-region-and-a-catalogue-of-the-muscid-carrion-community
#2
Andrzej Grzywacz, Martin J R Hall, Thomas Pape, Krzysztof Szpila
The Muscidae is one of the main dipteran families recognized as important for medico-legal purposes. Although an association of adult flies with decomposing human and animal bodies is documented for about 200 taxa worldwide, cadavers and carrion represents a breeding habitat for considerably fewer species. Species that do colonize dead human bodies can do so under diverse environmental conditions and, under certain circumstances, Muscidae may be the only colonizers of a body. Because of difficulties in identification, many studies have identified immature and/or adult muscids only to the genus or family level...
December 7, 2016: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/27924406/estimating-legal-age-based-on-fusion-of-the-proximal-humeral-epiphysis
#3
María Benito Sánchez, Sónia Codinha, Alexandra Muñoz García, José Antonio Sánchez Sánchez
The increasing demand which requires ascertaining the legal age of undocumented individuals who reach the various countries of the European Community means that new lines of research must be developed which help respond to questions posed by the Justice Administration. For this reason, this study has been designed on the basis of fusion times of the proximal humeral epiphysis. Moreover, the ultrasound scan has been used as the diagnostic method. It is a non-invasive technique, unlike the radiograph, which is used under current standards for the forensic diagnosis of age...
December 6, 2016: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/27924404/magnetic-resonance-imaging-of-the-distal-radial-epiphysis-a-new-criterion-of-maturity-for-determining-whether-the-age-of-18-has-been-completed
#4
M Timme, C Ottow, R Schulz, H Pfeiffer, W Heindel, V Vieth, A Schmeling, S Schmidt
To improve the accuracy of forensic age estimation where there is no legal basis for carrying out x-ray examinations, it would be useful to establish non-x-ray imaging techniques. The objective of this study was to provide reference data for the magnetic resonance imaging-based evaluation of the ossification stage of the distal radius. Furthermore, we tested a new criterion of the maturity of the distal radial epiphysis for determining whether an individual has completed the age of 18. We investigated 668 MRI scans of the distal radial epiphysis from 333 female and 335 male subjects ranging in age from 12 to 24...
December 6, 2016: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/27921297/self-identified-vampirism-and-risk-for-false-positives-a-case-example-of-team-homicide-and-implications-for-forensic-behavioral-science
#5
D J Williams
Historically, reported cases of self-identified vampirism typically have been associated with psychopathology and sometimes a propensity for violence. However, scholars recently have noted a wide range of diverse practices and meanings that all fall under the general description of self-identified vampirism. This brief report focuses on a homicide case (male and female partnered offenders), wherein a single victim was murdered and dismembered. Due to specific case evidence, there was controversy regarding whether or not the homicide was motivated by ritualistic self-identified vampirism...
December 6, 2016: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/27919516/a-newly-assembled-human-skeletal-reference-collection-of-modern-and-identified-filipinos
#6
Matthew C Go, Amanda B Lee, Jana Andrea D Santos, Nicole Marie C Vesagas, Rebecca Crozier
A collection of 75 modern skeletons from the Philippines has recently been created, and is being housed at the Archaeological Studies Program of the University of the Philippines, Diliman, Philippines. All individuals lived during the 20th century, and almost all died within the 21st century. These individuals were accessioned from exhumed and abandoned tombs at the Manila North Cemetery, and most have documented age and sex from tombstone inscriptions. This paper describes the first season of recovery and the collection's current demographic composition, with the future addition of more individuals to the collection expected to follow...
November 25, 2016: Forensic Science International
https://www.readbyqxmd.com/read/27919515/sexual-dimorphism-of-the-tibia-in-contemporary-greek-cypriots-and-cretans-forensic-applications
#7
E K Kranioti, J G García-Donas, P S Almeida Prado, X P Kyriakou, H C Langstaff
Sex estimation is an essential step in the identification process of unknown heavily decomposed human remains as it eliminates all possible matches of the opposite sex from the missing person's database. Osteometric methods constitute a reliable approach for sex estimation and considering the variation of sexual dimorphism between and within populations; standards for specific populations are required to ensure accurate results. The current study aspires to contribute osteometric data on the tibia from contemporary Greek-Cypriots to assist the identification process...
November 16, 2016: Forensic Science International
https://www.readbyqxmd.com/read/27916403/stability-of-synthetic-cathinones-in-oral-fluid-samples
#8
Briana Miller, Jiyoung Kim, Marta Concheiro
Synthetic cathinones are new stimulant drugs derived from cathinone that have been sold as "legal highs" worldwide. These compounds can elicit powerful effects such as delusions, hallucinations as well as other potentially dangerous behavior. New analogs with varying effects and potencies are constantly introduced in the market to evade legislation, and they are not detected by routine screening and confirmation methods. Oral fluid is an alternative matrix of increasing interest in forensic toxicology. Its collection is non-invasive and easily supervised, and positive drug findings typically reflect recent drug exposure...
December 1, 2016: Forensic Science International
https://www.readbyqxmd.com/read/27915431/time-dependent-postmortem-redistribution-of-morphine-and-its-metabolites-in-blood-and-alternative-matrices-application-of-ct-guided-biopsy-sampling
#9
Sandra N Staeheli, Dominic Gascho, Lars C Ebert, Thomas Kraemer, Andrea E Steuer
Interpretation of postmortem morphine concentrations in forensic toxicology provides several pitfalls such as missing information on tolerance, analyte stability, or postmortem redistribution (PMR). Recently, it had been shown that computed tomography (CT)-guided collection of biopsies using a robotic arm (virtobot) provides a valuable strategy for systematic studies on time-dependent PMR. Using this technique, time-dependent PMR of morphine and its metabolites was investigated in 12 cases. At admission to the institute (t1), femoral and heart blood (right ventricle) as well as biopsies from the right lung, the right kidney, liver, spleen, and muscle tissue were collected...
December 3, 2016: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/27915190/gunshot-residue-and-brakepads-compositional-and-morphological-considerations-for-forensic-casework
#10
William Tucker, Nick Lucas, Kelsey E Seyfang, K Paul Kirkbride, Rachel S Popelka-Filcoff
Previous research has raised the possibility that automotive brake pads can produce particles that are both compositionally and morphologically similar to gunshot residue (GSR). These studies, published in the early 2000s, coincided with the reduction or removal of unnecessary sources of lead from the automotive industry. The question therefore arises whether modern brake pads might still be a relevant source of 'GSR-like' particles. In the present study, a total of 75 brake pads taken from a range of cars currently on the road in Adelaide, South Australia, were collected from service centres...
November 23, 2016: Forensic Science International
https://www.readbyqxmd.com/read/27914558/karad%C3%A5-i%C3%A4-s-guilty-verdict-and-forensic-evidence-from-bosnia-s-mass-graves
#11
REVIEW
Melanie Klinkner
The International Criminal Tribunal for the Former Yugoslavia's Karadžić verdict, eagerly awaited, was unsurprising. He was found guilty of genocide, crimes against humanity and war crimes. One part of the judgment was concerned with the Srebrenica events in which much forensic evidence from mass graves featured. Whilst this was to be expected, forensic evidence from the horrific crime scenes continues to be important in determining aspects of the crime base. This paper discusses the evidence and examines how the Chamber came to the conclusion that systematic killing of thousands of Bosnian Muslim men occurred and attempts had been made to conceal the crimes and human remains in secondary graves thus confirming the actus reus of genocide...
December 2016: Science & Justice: Journal of the Forensic Science Society
https://www.readbyqxmd.com/read/27914556/numerical-likelihood-ratios-outputted-by-lr-systems-are-often-based-on-extrapolation-when-to-stop-extrapolating
#12
Peter Vergeer, Andrew van Es, Arent de Jongh, Ivo Alberink, Reinoud Stoel
A recent trend in forensic science is the development of objective, automated systems for the comparison of trace and reference material that give as output numerical likelihood ratios (LRs). For well discriminating LR systems, often the probability of the evidence given one or the other hypothesis depends on the density from the tail of a probability distribution. The models for probability distributions are trained by data. Since there is no proof of the applicability of the models beyond the data range, LR systems are sensitive to extrapolation errors...
December 2016: Science & Justice: Journal of the Forensic Science Society
https://www.readbyqxmd.com/read/27914555/forensic-expectations-investigating-a-crime-scene-with-prior-information
#13
Claire A J van den Eeden, Christianne J de Poot, Peter J van Koppen
In a large body of research the influence of contextual information on decisions made in a broad range of disciplines has been studied. To date, the influence of these expectancy effects on the crime scene investigation has not been studied. In the present study we explored the effect of prior information given to crime scene investigators on their perception and interpretation of an ambiguous crime scene. Participants (N=58) were experienced crime scene investigators who were provided with a panoramic photograph of an ambiguous mock crime scene...
December 2016: Science & Justice: Journal of the Forensic Science Society
https://www.readbyqxmd.com/read/27914554/comparative-performance-of-ampflstr%C3%A2-identifiler%C3%A2-plus-pcr-amplification-kit-and-qiagen%C3%A2-investigator%C3%A2-idplex-plus-kit
#14
Dalad Mattayat, Thitika Kitpipit, Sukanya Phetpeng, Watee Asawutmangkul, Phuvadol Thanakiatkrai
Many forensic STR kits are currently available in the market. The AmpFLSTR® Identifiler® Plus kit, which targets 15 STRs, is commonly used worldwide. The Thai forensic DNA community is built around it in terms of instrument, databases, and interpretation. QIAGEN's IDplex Plus kit targets the same loci, but the PCR cycling time is shorter by about 90min. A direct comparison that assesses forensic parameters and applicability to casework between the two kits has never been carried out. In this study, we performed a direct comparison between the two kits using serial dilutions of two control DNA samples and 60 randomly selected casework samples, including samples taken from improvised explosive devices and terrorist raids...
December 2016: Science & Justice: Journal of the Forensic Science Society
https://www.readbyqxmd.com/read/27914552/preserved-brains-from-the-spanish-civil-war-mass-grave-1936-at-la-pedraja1-burgos-spain
#15
Fernando Serrulla, Lourdes Herrasti, Carmen Navarro, Jose Luis Cascallana, Ana Maria Bermejo, Nicholas Marquez-Grant, Francisco Etxeberria
During the excavation of the Spanish Civil War mass grave at La Pedraja (Burgos, Spain), 104 individuals were found interred within it, 45 of which displayed brains that were preserved but dehydrated and reduced in size. This exceptional finding has resulted in the formation of a multidisciplinary team, with the aim of obtaining as much information as possible and to primarily understand the taphonomic phenomena that has led to the preservation of these brains. The following types of analyses were undertaken on three of these brains: macroscopy, histology, radiology, chemical-toxicology, genetics, chemical analysis of the soil and 3D modelling for stereolithography...
December 2016: Science & Justice: Journal of the Forensic Science Society
https://www.readbyqxmd.com/read/27914549/age-of-fusion-of-the-distal-radial-and-ulnar-epiphyses-from-hand-radiographs-a-study-in-kashmiri-population
#16
Nida Hassan, Farida Noor, Shabir Ahmad, Khalid Majid Fazili
Age estimation is a crucial parameter involved in investigations pertaining to civil and criminal procedures. It also aids in various examinations in forensic medicine, pediatrics, endocrinology and radiology. One of the important methods for skeletal age estimation is the age of fusion of the epiphyses. But there occur variations in the skeletal ages due to environmental, hormonal, ethnic and other factors. Hence, there arises the need for separate standards of ossification for different regions. The present study was conducted to ascertain the age of fusion of the distal radial and ulnar epiphyses in Kashmiri population...
December 2016: Science & Justice: Journal of the Forensic Science Society
https://www.readbyqxmd.com/read/27914548/aiding-the-interpretation-of-forensic-gait-analysis-development-of-a-features-of-gait-database
#17
Ivan Birch, Claire Gwinnett, Jeremy Walker
No abstract text is available yet for this article.
December 2016: Science & Justice: Journal of the Forensic Science Society
https://www.readbyqxmd.com/read/27914547/preliminary-classification-of-characteristic-organic-gunshot-residue-compounds
#18
Ellen Goudsmits, George P Sharples, Jason W Birkett
For the first time, a classification system for organic gunshot residue (OGSR) compounds with respect to the confirmation of OGSR materials is presented. There are 136 compounds considered to be associated with OGSR that have been highlighted in the literature. Many of these compounds could be classified as being ubiquitous in the environment and thus their detection as characteristic components of OGSR could cause issues with the interpretation of chemical ballistic evidence. The proposed system aims to address this problem by classifying OGSR compounds based on their forensic relevance with respect to the confirmation of GSR materials...
December 2016: Science & Justice: Journal of the Forensic Science Society
https://www.readbyqxmd.com/read/27914546/analysis-of-transferred-fragrance-and-its-forensic-implications
#19
Simona Gherghel, Ruth M Morgan, Christopher S Blackman, Kersti Karu, Ivan P Parkin
Perfumes are widely used by many people in developed countries, and a large number of both men and women wear perfumes on a daily basis. Analysis of perfume trace materials from clothing is not commonly employed within forensic casework, yet as a form of trace evidence it has the potential to provide valuable intelligence. In order to appreciate the value of trace evidence there is a fundamental need for an evidence base that can both offer insight into how a trace material behaves under different scenarios and activities, and from which inferences can be made...
December 2016: Science & Justice: Journal of the Forensic Science Society
https://www.readbyqxmd.com/read/27914281/stability-of-smokeless-powder-compounds-on-collection-devices
#20
Regina Verena Taudte, Claude Roux, Alison Beavis
The current trend towards the implementation of organic gunshot residue (OGSR) analysis into gunshot residue (GSR) investigation protocols typically involves the sequential analysis of inorganic and organic GSR. However, to allow for the consecutive analysis of inorganic and organic GSR, specimens will often be stored for different lengths of time which may result in compounds of interest degrading. In order to optimise storage conditions, it is important to consider compound degradation on collection devices during storage...
November 24, 2016: Forensic Science International
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