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https://www.readbyqxmd.com/read/28087155/population-genetic-data-of-38-insertion-deletion-markers-in-six-populations-of-the-northern-fringe-of-the-iberian-peninsula
#1
Sergio Cardoso, Rubén Sevillano, David Gamarra, Ana Santurtún, Begoña Martínez-Jarreta, Marian M de Pancorbo
Insertion-deletions have been reported very useful markers for forensic purposes. To further deepen in this matter, 38 non-coding bi-allelic autosomal indels were analyzed in 575 individuals representing six populations from the northern fringe of the Iberian Peninsula. Autochthonous populations from the Basque Country, northern Navarre, the Pas Valley in Cantabria and Aragon were analyzed, together with non-autochthonous populations from the Basque Country and northern Navarre. At the intra-population level, all loci analyzed were in Hardy-Weinberg equilibrium except for marker rs33917182 in autochthonous Basques...
January 3, 2017: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/28081518/development-of-a-biometric-method-to-estimate-age-on-hand-radiographs
#2
Floriane Remy, Gabriela Hossu, Romain Cendre, Emilien Micard, Laurence Mainard-Simard, Jacques Felblinger, Laurent Martrille, Loïc Lalys
Age estimation of living individuals aged less than 13, 18 or 21 years, which are some relevant legal ages in most European countries, is currently problematic in the forensic context. Thus, numerous methods are available for legal authorities, although their efficiency can be discussed. For those reasons, we aimed to propose a new method, based on the biometric analysis of hand bones. 451 hand radiographs of French individuals under the age of 21 were retrospectively analyzed. This total sample was divided into three subgroups bounded by the relevant legal ages previously mentioned: 0-13, 13-18 and 18-21 years...
December 23, 2016: Forensic Science International
https://www.readbyqxmd.com/read/28080105/cross-cultural-feigning-assessment-a-systematic-review-of-feigning-instruments-used-with-linguistically-ethnically-and-culturally-diverse-samples
#3
Alicia Nijdam-Jones, Barry Rosenfeld
The cross-cultural validity of feigning instruments and cut-scores is a critical concern for forensic mental health clinicians. This systematic review evaluated feigning classification accuracy and effect sizes across instruments and languages by summarizing 45 published peer-reviewed articles and unpublished doctoral dissertations conducted in Europe, Asia, and North America using linguistically, ethnically, and culturally diverse samples. The most common psychiatric symptom measures used with linguistically, ethnically, and culturally diverse samples included the Structured Inventory of Malingered Symptomatology, the Miller Forensic Assessment of Symptoms Test, and the Minnesota Multiphasic Personality Inventory (MMPI)...
January 12, 2017: Psychological Assessment
https://www.readbyqxmd.com/read/28078776/performance-of-the-forenseq-tm-dna-signature-prep-kit-on-highly-degraded-samples
#4
Paolo Fattorini, Carlo Previderé, Ilaria Carboni, Giorgio Marrubini, Solange Sorçaburu-Cigliero, Pierangela Grignani, Barbara Bertoglio, Paolo Vatta, Ugo Ricci
Next generation sequencing (NGS) is the emerging technology in forensic genomics laboratories. It offers higher resolution to address most problems of human identification, greater efficiency and potential ability to interrogate very challenging forensic casework samples. In the present study, a trial set of DNA samples was artificially degraded, by progressive aqueous hydrolysis, and analyzed together with the corresponding unmodified DNA sample and control sample 2800M, to test the performance and reliability of the ForenSeq(TM) DNA Signature Prep kit using the MiSeq Sequencer (Illumina)...
January 12, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28078445/energy-dependent-expansion-of-177-caliber-hollow-point-air-gun-projectiles
#5
Ronald Werner, Benno Schultz, Britta Bockholdt, Axel Ekkernkamp, Matthias Frank
Amongst hundreds of different projectiles for air guns available on the market, hollow-point air gun pellets are of special interest. These pellets are characterized by a tip or a hollowed-out shape in their tip which, when fired, makes the projectiles expand to an increased diameter upon entering the target medium. This results in an increase in release of energy which, in turn, has the potential to cause more serious injuries than non-hollow-point projectiles. To the best of the authors' knowledge, reliable data on the terminal ballistic features of hollow-point air gun projectiles compared to standard diabolo pellets have not yet been published in the forensic literature...
January 11, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28074886/post-mortem-whole-exome-analysis-in-a-large-sudden-infant-death-syndrome-cohort-with-a-focus-on-cardiovascular-and-metabolic-genetic-diseases
#6
Jacqueline Neubauer, Maria Rita Lecca, Giancarlo Russo, Christine Bartsch, Argelia Medeiros-Domingo, Wolfgang Berger, Cordula Haas
Sudden infant death syndrome (SIDS) is described as the sudden and unexplained death of an apparently healthy infant younger than one year of age. Genetic studies indicate that up to 35% of SIDS cases might be explained by familial or genetic diseases such as cardiomyopathies, ion channelopathies or metabolic disorders that remained undetected during conventional forensic autopsy procedures. Post-mortem genetic testing by using massive parallel sequencing (MPS) approaches represents an efficient and rapid tool to further investigate unexplained death cases and might help to elucidate pathogenic genetic variants and mechanisms in cases without a conclusive cause of death...
January 11, 2017: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/28071963/impaired-verbal-learning-in-forensic-inpatients-with-schizophrenia-spectrum-disorder
#7
Lasha Corbett, Kenny A Karyadi, Dominique Kinney, Stephen R Nitch, Stacey Marie Bayan, Mark Williams
The present study aimed to: (a) examine verbal learning performances among forensic inpatients diagnosed with Schizophrenia Spectrum Disorder (SSD); and (b) compare verbal learning performances among forensic SSD inpatients, SSD outpatients, and a small control sample. Participants included forensic SSD inpatients (n = 71), SSD outpatients (n = 305; see Stone et al.), and a control sample from the California Verbal Learning Test-II (CVLT-II) manual (n = 78; see Delis, Kramer, Kaplan, & Ober). Five verbal learning outcomes were measured using the CVLT-II...
January 10, 2017: Applied Neuropsychology. Adult
https://www.readbyqxmd.com/read/28070706/analysis-of-12-x-str-loci-in-the-population-of-south-croatia
#8
Gordan Mršić, Petar Ozretić, Josip Crnjac, Siniša Merkaš, Ivana Račić, Sara Rožić, Viktorija Sukser, Maja Popović, Marina Korolija
The aim of the study was to assess forensic pertinence of 12 short tandem repeats (STRs) on X-chromosome in south Croatia population. Investigator(®) Argus X-12 kit was used to co-amplify 12 STR loci belonging to four linkage groups (LGs) on X-chromosome in 99 male and 98 female DNA samples of unrelated donors. PCR products were analyzed by capillary electrophoresis. Population genetic and forensic parameters were calculated by the Arlequin and POPTREE2 software, and an on-line tool available at ChrX-STR.org...
January 9, 2017: Molecular Biology Reports
https://www.readbyqxmd.com/read/28068573/guidelines-for-reproducing-geometrical-aspects-of-intra-oral-radiographs-images-on-cone-beam-computed-tomography
#9
Janaina Paiva Curi, Thiago Leite Beaini, Ricardo Henrique Alves da Silva, Rodolfo Francisco Haltenhoff Melani, Israel Chilvarquer, Edgard Michel Crosato
Human identification requires comparison of individual traits of a person, depending on the availability and reproduction of antemortem (AM) records. If there is no presumed identity or AM exams are not available for comparison, the production of postmortem (PM) records is impaired. The purpose of this research is to describe and test standards to enable the comparison of antemortem periapical radiographs to images extracted from the manipulation of postmortem CBCT exams in multiple identification simulations in a randomized blind study...
December 22, 2016: Forensic Science International
https://www.readbyqxmd.com/read/28063584/an-investigation-into-the-factors-that-influence-toolmark-identifications-on-ammunition-discharged-from-semi-automatic-pistols-recovered-from-car-fires
#10
Mark A Collender, Kevin A J Doherty, Kenneth T Stanton
Following a shooting incident where a vehicle is used to convey the culprits to and from the scene, both the getaway car and the firearm are often deliberately burned in an attempt to destroy any forensic evidence which may be subsequently recovered. Here we investigate the factors that influence the ability to make toolmark identifications on ammunition discharged from pistols recovered from such car fires. This work was carried out by conducting a number of controlled furnace tests in conjunction with real car fire tests in which three 9mm semi-automatic pistols were burned...
January 2017: Science & Justice: Journal of the Forensic Science Society
https://www.readbyqxmd.com/read/28063583/analysis-of-fingerprint-samples-testing-various-conditions-for-forensic-dna-identification
#11
Lana Ostojic, Elisa Wurmbach
Fingerprints can be of tremendous value for forensic biology, since they can be collected from a wide variety of evident types, such as handles of weapons, tools collected in criminal cases, and objects with no apparent staining. DNA obtained from fingerprints varies greatly in quality and quantity, which ultimately affects the quality of the resulting STR profiles. Additional difficulties can arise when fingerprint samples show mixed STR profiles due to the handling of multiple persons. After applying a tested protocol for sample collection (swabbing with 5% Triton X-100), DNA extraction (using an enzyme that works at elevated temperatures), and PCR amplification (AmpFlSTR® Identifiler® using 31cycles) extensive analysis was performed to better understand the challenges inherent to fingerprint samples, with the ultimate goal of developing valuable profiles (≥50% complete)...
January 2017: Science & Justice: Journal of the Forensic Science Society
https://www.readbyqxmd.com/read/28063329/determination-of-ethyl-glucuronide-in-human-hair-samples-a-multivariate-analysis-of-the-impact-of-extraction-conditions-on-quantitative-results
#12
Alexander Mueller, Hilke Jungen, Stefanie Iwersen-Bergmann, Lars Raduenz, Susanne Lezius, Hilke Andresen-Streichert
BACKGROUND: Ethyl glucuronide (EtG), a minor metabolite of ethanol, is used as a direct alcohol biomarker for the prolonged detection of ethanol consumption. Hair testing for EtG offers retrospective, long-term detection of ethanol exposition for several months and has gained practical importance in forensic and clinical toxicology. Since quantitative results of EtG hair testings are included in interpretations, a rugged quantitation of EtG in hair matrix is important. As generally known, sample preparation is critical in hair testing, and the scope of this study was on extraction of EtG from hair matrix...
December 19, 2016: Forensic Science International
https://www.readbyqxmd.com/read/28059498/rapid-screening-method-for-new-psychoactive-substances-of-forensic-interest-electrochemistry-and-analytical-determination-of-phenethylamines-derivatives-nbome-via-cyclic-and-differential-pulse-voltammetry
#13
Ana Flávia B Andrade, Samuel Kasahun Mamo, Jose Gonzalez-Rodriguez
The NBOMe derivatives are phenethylamines derived from the 2C class of hallucinogens. Only a few human pharmacologic studies have been conducted on these drugs, and several cases of intoxication and deaths have been reported. Presently, NBOMe are not a part of the routine drugs-of-abuse screening procedure for many police forces, and there are no rapid immunoassay screening tests that can detect the presence of those compounds. In this Article, the voltammetric behavior of 25B NBOMe and 25I NBOMe were investigated and their electroanalytical characteristics determined for the first time...
January 6, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28057510/investigation-of-extended-y-chromosome-str-haplotypes-in-sardinia
#14
D Lacerenza, S Aneli, C Di Gaetano, R Critelli, A Piazza, G Matullo, C Culigioni, R Robledo, C Robino, C Calò
Y-chromosomal variation of selected single nucleotide polymorphisms (SNPs) and 32 short tandem repeat (STR) loci was evaluated in Sardinia in three open population groups (Northern Sardinia, n=40; Central Sardinia, n=56; Southern Sardinia, n=91) and three isolates (Desulo, n=34; Benetutti, n=45, Carloforte, n=42). The tested Y-STRs consisted of Yfiler(®) Plus markers and the seven rapidly mutating (RM) loci not included in the YFiler(®) Plus kit (DYF399S1, DYF403S1ab, DYF404S1, DYS526ab, DYS547, DYS612, and DYS626)...
December 28, 2016: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/28056375/evaluation-of-direct-and-indirect-ethanol-biomarkers-using-a-likelihood-ratio-approach-to-identify-chronic-alcohol-abusers-for-forensic-purposes
#15
Eugenio Alladio, Agnieszka Martyna, Alberto Salomone, Valentina Pirro, Marco Vincenti, Grzegorz Zadora
The detection of direct ethanol metabolites, such as ethyl glucuronide (EtG) and fatty acid ethyl esters (FAEEs), in scalp hair is considered the optimal strategy to effectively recognize chronic alcohol misuses by means of specific cut-offs suggested by the Society of Hair Testing. However, several factors (e.g. hair treatments) may alter the correlation between alcohol intake and biomarkers concentrations, possibly introducing bias in the interpretative process and conclusions. 125 subjects with various drinking habits were subjected to blood and hair sampling to determine indirect (e...
December 21, 2016: Forensic Science International
https://www.readbyqxmd.com/read/28054103/a-general-approach-for-postmortem-interval-based-on-uniformly-distributed-and-interconnected-qualitative-indicators
#16
Szymon Matuszewski
There are many qualitative indicators for postmortem interval (PMI) of human or animal cadavers. When such indicators are uniformly spaced over PMI, the resultant distribution may be very useful for the estimation of PMI. Existing methods of estimation rely on indicator persistence time that is, however, difficult to estimate because of its dependence on many interacting factors, of which forensic scientists are usually unaware in casework. In this article, an approach is developed for the estimation of PMI from qualitative markers in which indicator persistence time is not used...
January 4, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28045276/evaluating-the-feature-comparison-strategy-for-forensic-face-identification
#17
Alice Towler, David White, Richard I Kemp
Face recognition is thought to rely on representations that encode holistic properties. Paradoxically, professional forensic examiners who identify unfamiliar faces by comparing facial images are trained to adopt a feature-by-feature comparison strategy. Here we tested the effectiveness of this strategy by asking participants to rate facial feature similarity prior to making same/different identity decisions to pairs of face images. Experiment 1 provided preliminary evidence that rating feature similarity improves unfamiliar face matching accuracy in novice participants...
January 2, 2017: Journal of Experimental Psychology. Applied
https://www.readbyqxmd.com/read/28035799/artificial-neural-network-for-probabilistic-feature-recognition-in-liquid-chromatography-coupled-to-high-resolution-mass-spectrometry
#18
Michael Woldegebriel, Eduard Derks
In this work, a novel probabilistic untargeted feature detection algorithm for liquid chromatography coupled to high-resolution mass spectrometry (LC-HRMS) using artificial neural network (ANN) is presented. The feature detection process is approached as a pattern recognition problem, and thus, ANN was utilized as an efficient feature recognition tool. Unlike most existing feature detection algorithms, with this approach, any suspected chromatographic profile (i.e., shape of a peak) can easily be incorporated by training the network, avoiding the need to perform computationally expensive regression methods with specific mathematical models...
December 29, 2016: Analytical Chemistry
https://www.readbyqxmd.com/read/28031348/isolation-of-the-male-specific-transformer-exon-as-a-method-for-immature-specimen-sex-identification-in-chrysomya-megacephala-diptera-calliphoridae
#19
J L Smith, J D Wells
Being able to efficiently differentiate between male and female individuals in the immature forms of insects allows for investigations into sexually dimorphic patterns of growth rates and gene expression. For species lacking sex-specific morphological characteristics during these periods, alternative methods must be devised. Commonly, isolation of sex determination genes reveals sex-specific band patterns and allows for markers that can be used in insect control. For blow flies, a family that includes flies of medical and forensic importance, sex has previously been identified in some members using the male-specific exon in the transformer gene...
December 28, 2016: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28029496/accuracy-of-the-estimation-of-dental-age-in-comparison-with-chronological-age-in-a-spanish-sample-of-2641-living-subjects-using-the-demirjian-and-nolla-methods
#20
María Melo, Javier Ata-Ali
Age estimation is an important procedure in forensic medicine and is carried out for a number of reasons. For living persons, age estimation is performed in order to assess whether a child has attained the age of criminal responsibility, in scenarios involving rape, kidnapping or marriage, in premature births, adoption procedures, illegal immigration, pediatric endocrine diseases and orthodontic malocclusion, as well as in circumstances in which the birth certificate is not available or the records are suspect...
October 12, 2016: Forensic Science International
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