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https://www.readbyqxmd.com/read/29332838/rapid-and-sensitive-tapered-capillary-microextraction-combined-to-on-line-sample-stacking-capillary-electrophoresis-for-extraction-and-quantification-of-two-beta-blockers-in-human-urine
#1
Shucheng Sun, Yujia Wang, Xin Liu, Rao Fu, Li Yang
A tapered-capillary microextraction (tCap-μEx) combining with field-amplified stacking (FASI) method for CE analysis was developed. The tCap-μEx method is based on the construction of a micro solid phase extraction (SPE) column by narrowing the end of a silica capillary from 530µm (inner diameter) to 20µm, enabling the packing of 45µm sorbent particles without a frit. Various parameters that may affect the microextraction and FASI-CE analysis have been investigated and optimized. This study shows that microextraction exhibits advantages of small sample and sorbent volumes (less than 200μL sample and 2μL sorbent) and fast extraction time of 6min...
April 1, 2018: Talanta
https://www.readbyqxmd.com/read/29332700/corrigendum-to-preventing-miscarriages-of-justice-a-review-of-forensic-firearm-identification-sci-justice-56-2-2016-129-142
#2
Rachel S Bolton-King
No abstract text is available yet for this article.
January 2018: Science & Justice: Journal of the Forensic Science Society
https://www.readbyqxmd.com/read/29332697/acid-alteration-of-several-ignitable-liquids-of-potential-use-in-arsons
#3
Carlos Martín-Alberca, Héctor Carrascosa, Itxaso San Román, Luis Bartolomé, Carmen García-Ruiz
Ignitable liquids such as fuels, alcohols and thinners can be used in criminal activities, for instance arsons. Forensic experts require to know their chemical compositions, as well as to understand how different modification effects could impact them, in order to detect, classify and identify them properly in fire debris. The acid alteration/acidification of ignitable liquids is a modification effect that sharply alters the chemical composition, for example, of gasoline and diesel fuel, interfering in the forensic analysis and result interpretation...
January 2018: Science & Justice: Journal of the Forensic Science Society
https://www.readbyqxmd.com/read/29332694/score-based-procedures-for-the-calculation-of-forensic-likelihood-ratios-scores-should-take-account-of-both-similarity-and-typicality
#4
Geoffrey Stewart Morrison, Ewald Enzinger
Score based procedures for the calculation of forensic likelihood ratios are popular across different branches of forensic science. They have two stages, first a function or model which takes measured features from known-source and questioned-source pairs as input and calculates scores as output, then a subsequent model which converts scores to likelihood ratios. We demonstrate that scores which are purely measures of similarity are not appropriate for calculating forensically interpretable likelihood ratios...
January 2018: Science & Justice: Journal of the Forensic Science Society
https://www.readbyqxmd.com/read/29332557/evaluation-of-a-victim-centered-trauma-informed-victim-notification-protocol-for-untested-sexual-assault-kits-saks
#5
Rebecca Campbell, Jessica Shaw, Giannina Fehler-Cabral
Throughout the United States, hundreds of thousands of sexual assault kits (SAKs) have not been submitted by the police for forensic DNA testing, which raises complex issues regarding how victims ought to be notified about what happened to their kits. In this project, we evaluated a victim-centered, trauma-informed victim notification protocol that was implemented in Detroit, Michigan. Most victims (84%) did not have a strong negative emotional reaction to notification, and most (57%) decided to reengage with the criminal justice system...
April 1, 2017: Violence Against Women
https://www.readbyqxmd.com/read/29331840/post-mortem-vitreous-magnesium-in-adult-population
#6
R Tse, J Garland, K Kesha, P Morrow, L Lam, H Elstub, A D Cala, C Palmiere, S Stables
BACKGROUND: The study of post mortem vitreous magnesium (Mg) is less common than sodium (Na), chloride (Cl) and potassium (K) in the forensic literature. There is no accepted normal range for post mortem vitreous Mg and the relationship between post mortem vitreous Mg levels and post mortem interval (PMI), other electrolyte levels, disease conditions, age and sex have not been fully established. AIM: To investigate the relationship of post mortem vitreous Mg with age, sex, PMI, vitreous electrolyte levels and diabetic status...
December 30, 2017: Forensic Science International
https://www.readbyqxmd.com/read/29331769/source-identification-of-uranium-containing-materials-at-mine-legacy-sites-in-portugal
#7
A C Keatley, P G Martin, K R Hallam, O D Payton, R Awbery, F Carvalho, J M Oliveira, L Silva, M Malta, T B Scott
Whilst prior nuclear forensic studies have focused on identifying signatures to distinguish between different uranium deposit types, this paper focuses on providing a scientific basis for source identification of materials from different uranium mine sites within a single region, which can then be potentially used within nuclear forensics. A number of different tools, including gamma spectrometry, alpha spectrometry, mineralogy and major and minor elemental analysis, have been utilised to determine the provenance of uranium mineral samples collected at eight mine sites, located within three different uranium provinces, in Portugal...
January 10, 2018: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/29331714/stature-estimation-formulae-for-mexican-contemporary-population-a-sample-based-study-of-long-bones
#8
Antinea Menéndez Garmendia, Gabriela Sánchez-Mejorada, Jorge A Gómez-Valdés
Stature estimation is an important step to create a biological profile for human identification of unknown individuals in forensic anthropological practice, and it is well known that the long bone length is highly correlated with this feature. The purpose of the present study is to develop formulae for height estimation, based on simple linear regression model for humerus, femur and tibia in Mexican contemporary population. Stature was taken in 56 males and 30 female corpses as well as maximum length of three long bones of the limbs after autopsy following the Menéndez et al...
January 3, 2018: Journal of Forensic and Legal Medicine
https://www.readbyqxmd.com/read/29331680/estimating-error-rates-for-firearm-evidence-identifications-in-forensic-science
#9
John Song, Theodore V Vorburger, Wei Chu, James Yen, Johannes A Soons, Daniel B Ott, Nien Fan Zhang
Estimating error rates for firearm evidence identification is a fundamental challenge in forensic science. This paper describes the recently developed congruent matching cells (CMC) method for image comparisons, its application to firearm evidence identification, and its usage and initial tests for error rate estimation. The CMC method divides compared topography images into correlation cells. Four identification parameters are defined for quantifying both the topography similarity of the correlated cell pairs and the pattern congruency of the registered cell locations...
December 13, 2017: Forensic Science International
https://www.readbyqxmd.com/read/29331679/molecular-identification-of-forensically-important-calliphoridae-and-sarcophagidae-species-using-its2-nucleotide-sequences
#10
Ji Hye Park, Yu-Hoon Kim, Chan Seon Ham, Sang Eon Shin, Hyun Ju Lee, Kwang Soo Ko, Jinhyuk Choi, Gi Hoon Son, Seong Hwan Park
The application of insect evidence to forensic investigations is mainly based on the estimation of postmortem interval and the identification of insect species from samples that are collected from the crime scene. Due to the limited number of expert taxonomists, species identification is one of the major barriers for crime scene investigators to utilize forensic entomology. Therefore, the molecular identification of species, using mitochondrial cytochrome c oxidase subunit I (COI) gene, has been suggested as an alternative strategy...
January 3, 2018: Forensic Science International
https://www.readbyqxmd.com/read/29330991/diaphyseal-nutrient-foramina-in-dried-human-adult-long-bones-of-lower-limb-in-pakistan
#11
Ejaz Afzal, Fatima Sherin, Omair Khan, Noaman Hussain Siddiqui
BACKGROUND: osteogenesis needs circulation of blood in the bones. Bone growth, repair of fracture, maintenance of bone vitality and other injures also need blood circulation in proper way. Blood is allowed to flow via holes in the diaphysis, which are called as nutrient foramina. METHODS: The crosssectional study was done in the department of Anatomy, Ayub and Khyber Medical College (Osteology Sections). The aim was to observe diaphyseal nutrient foramina in the human long bones of the lower limb...
October 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/29330875/performance-of-the-early-access-ampliseq%C3%A2-mitochondrial-panel-with-degraded-dna-samples-using-the-ion-torrent%C3%A2-platform
#12
Ka Tak Wai, Mark Barash, Peter Gunn
The Early Access AmpliSeq™ Mitochondrial Panel amplifies whole mitochondrial genomes for phylogenetic and kinship identifications, using Ion Torrent™ technology. There is currently limited information on its performance with degraded DNA, a common occurrence in forensic samples. This study evaluated the performance of the Panel with DNA samples degraded in vitro, to mimic conditions commonly found in forensic investigations. Purified DNA from five individuals was heat-treated at five time points each (125°C for 0, 30, 60, 120 and 240 minutes; total n = 25)...
January 13, 2018: Electrophoresis
https://www.readbyqxmd.com/read/29330640/is-contact-with-children-related-to-legitimizing-beliefs-toward-sex-with-children-among-men-with-pedophilia
#13
Max Geradt, Sara Jahnke, Julia Heinz, Jürgen Hoyer
Among pedophilic men, social contact with children has been discussed as creating a risk situation for sexual abuse. Also, pedophilic men searching for such contact are seen as harboring more beliefs legitimizing sexual contact with children. However, social contact may also decrease false beliefs. We tested these competing views in an anonymous Internet survey with a non-forensic, non-clinical sample of 104 self-classified pedophilic men. Results showed that both increased social and physical contact were significantly linked to fewer legitimizing beliefs toward sex with children, even when controlling for past psychotherapy, educational level, social desirability, and age...
January 12, 2018: Archives of Sexual Behavior
https://www.readbyqxmd.com/read/29329431/a-validated-method-for-the-screening-of-320-forensically-significant-compounds-in-blood-by-lc-qtof-with-simultaneous-quantification-of-selected-compounds
#14
Emma Partridge, Stephen Trobbiani, Peter Stockham, Timothy Scott, Chris Kostakis
A broad drug screening method for toxicologically significant drugs and metabolites in whole blood using liquid chromatography time-of-flight mass spectrometry (LC/QTOF) was developed and comprehensively validated. The method qualitatively screens for 320 compounds while simultaneously quantifying 39. Compounds were extracted from the blood using alkaline liquid/liquid extraction and chromatographic separation was achieved in 12 min. The QTOF was operated using positive mode electrospray ionization using data dependent acquisition...
January 10, 2018: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/29329259/extreme-overvalued-beliefs-how-violent-extremist-beliefs-become-normalized
#15
Tahir Rahman
Extreme overvalued beliefs (EOB) are rigidly held, non-deusional beliefs that are the motive behind most acts of terrorism and mass shootings. EOBs are differentiated from delusions and obsessions. The concept of an overvalued idea was first described by Wernicke and later applied to terrorism by McHugh. Our group of forensic psychiatrists (Rahman, Resnick, Harry) refined the definition as an aid in the differential diagnosis seen in acts of violence. The form and content of EOBs is discussed as well as group effects, conformity, and obedience to authority...
January 12, 2018: Behavioral Sciences
https://www.readbyqxmd.com/read/29328966/cementum-as-a-source-of-dna-in-challenging-forensic-cases
#16
Hussam Mansour, Oliver Krebs, Jan Peter Sperhake, Christa Augustin, Till Koehne, Michael Amling, Klaus Püschel
Each forensic case is characterized by its own uniqueness. Deficient forensic cases require additional sources of human identifiers to assure the identity. We report on two different cases illustrating the role of teeth in answering challenging forensic questions. The first case involves identification of an adipocere male found in a car submersed in water for approximately 2 years. The second scenario, which involves paternity DNA testing of an exhumed body, was performed approximately 2.8 years post-mortem...
January 3, 2018: Journal of Forensic and Legal Medicine
https://www.readbyqxmd.com/read/29324351/corrigendum-to-differences-in-combinations-and-concentrations-of-drugs-of-abuse-in-fatal-intoxication-and-driving-under-the-influence-cases-forensic-sci-int-281-2017-127-133
#17
Hilde Erøy Edvardsen, Torill Tverborgvik, Joachim Frost, Sidsel Rogde, Inge Morild, Helge Waal, Thomas Clausen, Lars Slørdal, Vigdis Vindenes
No abstract text is available yet for this article.
December 30, 2017: Forensic Science International
https://www.readbyqxmd.com/read/29324349/organic-staining-on-bone-from-exposure-to-wood-and-other-plant-materials
#18
Corey R Pollock, James T Pokines, Jonathan D Bethard
Determining the depositional environment and the postmortem alterations to a set of remains are necessary aspects of a forensic investigation to explain the circumstances surrounding the death of an individual. The present study examines organic staining as a method for reconstructing the depositional environment of skeletal remains and the taphonomic agents with which they came into contact. Organic staining results largely from tannins leaching from plant materials and therefore can be seen on bone deposited in wooden coffin environments or on terrestrial surfaces...
December 21, 2017: Forensic Science International
https://www.readbyqxmd.com/read/29324348/dependence-among-randomly-acquired-characteristics-on-shoeprints-and-their-features
#19
Naomi Kaplan Damary, Micha Mandel, Sarena Wiesner, Yoram Yekutieli, Yaron Shor, Clifford Spiegelman
Randomly acquired characteristics (RACs), also known as accidental marks, are random markings on a shoe sole, such as scratches or holes, that are used by forensic experts to compare a suspect's shoe with a print found at the crime scene. This article investigates the relationships among three features of a RAC: its location, shape type and orientation. If these features, as well as the RACs, are independent of each other, a simple probabilistic calculation could be used to evaluate the rarity of a RAC and hence the evidential value of the shoe and print comparison, whereas a correlation among the features would complicate the analysis...
December 11, 2017: Forensic Science International
https://www.readbyqxmd.com/read/29324321/injuries-sustained-in-falling-fatalities-in-relation-to-different-distances-of-falls
#20
Hasan Abder-Rahman, Mohanad S O Jaber, Shrouq S Al-Sabaileh
BACKGROUND: Falling from a distance is an important issue worldwide, which happens in different ages, genders and circumstances. It is usually not considered a medicolegal case in many countries hence no autopsy is performed. This study focused on analyzing injuries sustained in victims of falling in relation to different distances of fall. METHODS: Retrospective study of 352 autopsy reports of falling victims brought to the forensic pathology department at Jordan University Hospital during the period from January 1990 to March 2016...
December 21, 2017: Journal of Forensic and Legal Medicine
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