keyword
MENU ▼
Read by QxMD icon Read
search

forensic imaging

keyword
https://www.readbyqxmd.com/read/29138952/age-estimation-by-assessment-of-pulp-chamber-volume-a-bayesian-network-for-the-evaluation-of-dental-evidence
#1
Emanuele Sironi, Franco Taroni, Claudio Baldinotti, Cosimo Nardi, Gian-Aristide Norelli, Matteo Gallidabino, Vilma Pinchi
PURPOSE: The present study aimed to investigate the performance of a Bayesian method in the evaluation of dental age-related evidence collected by means of a geometrical approximation procedure of the pulp chamber volume. Measurement of this volume was based on three-dimensional cone beam computed tomography images. METHODS: The Bayesian method was applied by means of a probabilistic graphical model, namely a Bayesian network. Performance of that method was investigated in terms of accuracy and bias of the decisional outcomes...
November 14, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/29127894/detection-and-localization-of-copy-paste-forgeries-in-digital-videos
#2
Raahat Devender Singh, Naveen Aggarwal
Amidst the continual march of technology, we find ourselves relying on digital videos to proffer visual evidence in several highly sensitive areas such as journalism, politics, civil and criminal litigation, and military and intelligence operations. However, despite being an indispensable source of information with high evidentiary value, digital videos are also extremely vulnerable to conscious manipulations. Therefore, in a situation where dependence on video evidence is unavoidable, it becomes crucial to authenticate the contents of this evidence before accepting them as an accurate depiction of reality...
October 26, 2017: Forensic Science International
https://www.readbyqxmd.com/read/29119243/retraction-note-to-l-glutamine-supplementation-induces-insulin-resistance-in-adipose-tissue-and-improves-insulin-signalling-in-liver-and-muscle-of-rats-with-diet-induced-obesity
#3
P O Prada, S M Hirabara, C T de Souza, A A Schenka, H G Zecchin, J Vassallo, L A Velloso, E Carneiro, J B C Carvalheira, R Curi, M J Saad
In light of forensic evidence indicating duplication and/or manipulation of western blot images the Editor-in-Chief is retracting the article cited above.
November 8, 2017: Diabetologia
https://www.readbyqxmd.com/read/29118445/large-area-imaging-of-forensic-evidence-with-ma-xrf
#4
Kirsten Langstraat, Alwin Knijnenberg, Gerda Edelman, Linda van de Merwe, Annelies van Loon, Joris Dik, Arian van Asten
This study introduces the use of macroscopic X-ray fluorescence (MA-XRF) for the detection, classification and imaging of forensic traces over large object areas such as entire pieces of clothing and wall paneling. MA-XRF was sufficiently sensitive and selective to detect human biological traces like blood, semen, saliva, sweat and urine on fabric on the basis of Fe, Zn, K, Cl and Ca elemental signatures. With MA-XRF a new chemical contrast is introduced for human stain detection and this can provide a valuable alternative when the evidence item is challenging for conventional techniques...
November 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29111687/time-gated-imaging-of-latent-fingerprints-and-specific-visualization-of-protein-secretions-via-molecular-recognition
#5
Jie Wang, Qinqin Ma, Haoyang Liu, Yingqian Wang, Haijing Shen, Xiaoxia Hu, Chao Ma, Quan Yuan, Weihong Tan
Persistent nanophosphors can remain luminescent after excitation ceases; thus, they offer a promising way to avoid background fluorescence interference in bioimaging. In this work, Zn2GeO4:Ga,Mn (ZGO:Ga,Mn) persistent luminescence nanoparticles were developed and they were employed for time-gated imaging of latent fingerprints (LFP). The nanoparticles were functionalized with a carboxyl group and utilized to label LFP through reacting with the amino group in the LFP. Results proved the potent ability of ZGO:Ga,Mn in eliminating background fluorescence to afford highly sensitive LFP imaging...
November 15, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29108763/age-estimation-in-a-sub-adult-western-australian-population-based-on-the-analysis-of-the-pelvic-girdle-and-proximal-femur
#6
Siobhan Sullivan, Ambika Flavel, Daniel Franklin
The accurate and precise estimation of skeletal age by a forensic anthropologist is both a professional and judicial requirement. When unknown skeletal remains are referred to the anthropologist, the estimation of the requisite biological attributes (e.g., age and sex) should accordingly be based on the application of population-specific standards (statistical data). Deviations from the latter practice may result in reduced accuracy and compromised identification. Towards informing appropriate forensic practice, the aim of the present study is to develop statistically quantified age estimation models for a contemporary sub-adult Western Australian population based on the timing of fusion in the os coxa and proximal femur...
October 16, 2017: Forensic Science International
https://www.readbyqxmd.com/read/29101908/using-drone-mounted-cameras-for-on-site-body-documentation-3d-mapping-and-active-survey
#7
Petra Urbanová, Mikoláš Jurda, Tomáš Vojtíšek, Jan Krajsa
Recent advances in unmanned aerial technology have substantially lowered the cost associated with aerial imagery. As a result, forensic practitioners are today presented with easy low-cost access to aerial photographs at remote locations. The present paper aims to explore boundaries in which the low-end drone technology can operate as professional crime scene equipment, and to test the prospects of aerial 3D modeling in the forensic context. The study was based on recent forensic cases of falls from height admitted for postmortem examinations...
October 26, 2017: Forensic Science International
https://www.readbyqxmd.com/read/29098386/determination-of-sex-on-the-basis-of-hyoid-bone-measurements-in-a-japanese-population-using-multidetector-computed-tomography
#8
Suguru Torimitsu, Yohsuke Makino, Hisako Saitoh, Namiko Ishii, Daisuke Yajima, Go Inokuchi, Ayumi Motomura, Fumiko Chiba, Rutsuko Yamaguchi, Yumi Hoshioka, Hirotaro Iwase
Sex determination for unidentified human remains is important because the determined sex is usually used as a foundation for the estimation of other biological profiles. This study investigated the sexual dimorphism of the adult hyoid bone and developed discriminant equations to accurately estimate sex in a contemporary Japanese population using measurements on two-dimensional computed tomography (CT) images. The study sample comprised 280 cadavers (140 males, 140 females) of known age and sex that underwent postmortem CT and subsequent forensic autopsy...
November 2, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/29096202/parzen-neural-networks-fundamentals-properties-and-an-application-to-forensic-anthropology
#9
Edmondo Trentin, Luca Lusnig, Fabio Cavalli
A novel, unsupervised nonparametric model of multivariate probability density functions (pdf) is introduced, namely the Parzen neural network (PNN). The PNN is intended to overcome the major limitations of traditional (either statistical or neural) pdf estimation techniques. Besides being profitably simple, the PNN turns out to have nice properties in terms of unbiased modeling capability, asymptotic convergence, and efficiency at test time. Several matters pertaining the practical application of the PNN are faced in the paper, too...
October 18, 2017: Neural Networks: the Official Journal of the International Neural Network Society
https://www.readbyqxmd.com/read/29082430/how-taphonomic-alteration-affects-the-detection-and-imaging-of-striations-in-stab-wounds
#10
Sophie A Stanley, Sarah V Hainsworth, Guy N Rutty
Stabbing with a kitchen knife is a common method of homicide in Europe. Serrated knives may leave tool markings (striations) in tissues. Documentation of striations is necessary for their use as forensic evidence. Traditional methods (physical casting and photography) have significant limitations, and micro-computed tomography (micro-CT) has been trialled in cartilage to "virtually cast" wounds. Previous research has shown the proportion of striations in cartilage falls following decomposition. This project has investigated the effects of taphonomic alteration and documentation methods of striations in porcine skin...
October 29, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/29058799/a-supramolecular-nanocomposite-as-a-near-infrared-transmitting-optical-filter-for-security-and-forensic-applications
#11
Samrat Ghosh, Sandeep Cherumukkil, Cherumuttathu H Suresh, Ayyappanpillai Ajayaghosh
Visibly opaque but near-infrared (NIR)-transparent materials are an essential component for night-vision photography, security imaging, and forensic applications. Herein, the development of a novel supramolecular black dye from a diketopyrrolopyrrole (DPP)-based low-molecular-weight organogelator is described. In the solution state, the monomer of DPP-Amide exhibits a deep green color with a broad absorption in the visible region due to firm intramolecular charge transfer from the donor to the acceptor unit...
October 23, 2017: Advanced Materials
https://www.readbyqxmd.com/read/29050993/psychological-causes-of-autobiographical-amnesia-a-study-of-28-cases
#12
Angelica Staniloiu, Hans J Markowitsch, Andreas Kordon
Autobiographical amnesia is found in patients with focal or diffuse brain damage ("organic amnesia"), but also without overt brain damage (at least when measured with conventional brain imaging methods). This last condition is usually named dissociative amnesia at present, and was originally described as hysteria. Classically and traditionally, dissociative amnesia is seen as a disorder that causes retrograde amnesia in the autobiographical domain in the aftermath of incidents of major psychological stress or trauma...
October 16, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/29046954/an-eye-tracking-study-of-bloodstain-pattern-analysts-during-pattern-classification
#13
R M Arthur, J Hoogenboom, R D Green, M C Taylor, K G de Bruin
Bloodstain pattern analysis (BPA) is the forensic discipline concerned with the classification and interpretation of bloodstains and bloodstain patterns at the crime scene. At present, it is unclear exactly which stain or pattern properties and their associated values are most relevant to analysts when classifying a bloodstain pattern. Eye tracking technology has been widely used to investigate human perception and cognition. Its application to forensics, however, is limited. This is the first study to use eye tracking as a tool for gaining access to the mindset of the bloodstain pattern expert...
October 18, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/29045143/reconstruction-of-obliterated-characters-in-polycarbonate-through-spectral-imaging
#14
Cédric Parisien, Gitanjali Kolhatkar, Frank Crispino, André Lajeunesse, Andreas Ruediger
In forensic sciences, there is an increasing demand for nondestructive and reliable methods to retrieve obliterated information in polymers. This study demonstrates a case study for the potential of Raman spectroscopy to reconstruct abraded serial numbers. Residual strain and local variations in the structural arrangement are nondestructively imaged through peak shifts and variations of the full width at half-maximum of specific Raman lines, respectively. We qualitatively validate our approach by successfully recovering an obliterated letter stamped with a pressure of ∼170 MPa in a polycarbonate sample, with a subsequent quantitative statistical analysis...
November 7, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29044577/development-and-validation-of-a-virtual-examination-tool-for-firearm-forensics
#15
Pierre Duez, Todd Weller, Marcus Brubaker, Richard E Hockensmith, Ryan Lilien
The transition from 2D imaging to 3D scanning in the discipline of firearms and toolmark analysis is likely to provide examiners an unprecedented view of microscopic surface topography. The digital examination of measured 3D surface topographies has been referred to as virtual microscopy (VM). The approach offers several potential advantages over traditional comparison microscopy. Like any new analytic method, VM must be validated prior to its use in a crime laboratory. This paper describes one of the first validation studies of virtual microscopy...
October 16, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/29039241/aripiprazole-long-acting-injection-a-mirror-image-study-of-its-effects-on-hospitalisation-at-one-year
#16
David M Taylor, Anna Sparshatt, Fahima Amin, Ian Osborne, Olubanke Dzahini, Gwenllian Hughes, Catrin Fischetti
Second generation antipsychotic long-acting injections have a greater cost than older depots. Their cost-effectiveness has yet to be established. We conducted a non-interventional, observational, follow-up of patients prescribed aripiprazole long-acting injection in two centres using a mirror image method. Data were available for 160 patients consecutively prescribed aripiprazole long-acting injection, of whom 30 were not included in the analysis (21 forensic patients, five incomplete data and four lost to follow-up)...
October 1, 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/29024511/the-relationship-between-linear-osteological-and-radiographic-measurements-of-the-human-calcaneus-and-talus
#17
David Agoada
Plain radiographs of the foot are a common form of examination in individuals when medical evaluation is indicated. Their availability makes them useful for studying human variation where large sample sizes are crucial. Calcaneal and talar morphology are critical in the understanding of human foot form and function, but few studies have examined the accuracy of linear measurements of these bones taken from radiographs. If linear measurements are to be used in quantitative analysis, their accuracy must first be demonstrated...
October 10, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29023687/a-guide-for-effective-anatomical-vascularization-studies-useful-ex%C3%A2-vivo-methods-for-both-ct-and-mri-imaging-before-dissection
#18
Yohann Renard, Gabriela Hossu, Bailiang Chen, Marine Krebs, Marc Labrousse, Manuela Perez
The objective of this study was to develop a simple and useful injection protocol for imaging cadaveric vascularization and dissection. Mixtures of contrast agent and cast product should provide adequate contrast for two types of ex vivo imaging (MRI and CT) and should harden to allow gross dissection of the injected structures. We tested the most popular contrast agents and cast products, and selected the optimal mixture composition based on their availability and ease of use. All mixtures were first tested in vitro to adjust dilution parameters of each contrast agent and to fine-tune MR imaging acquisition sequences...
October 11, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/28975794/development-of-well-preserved-substrate-versatile-latent-fingerprints-by-aggregation-induced-enhanced-emission-active-conjugated-polyelectrolyte
#19
Akhtar Hussain Malik, Anamika Kalita, Parameswar Krishnan Iyer
The development of highly efficient latent fingerprint (LFP) technology remains extremely vital for forensic and criminal investigations. In this contribution, a straightforward, rapid, and cost-effective method has been established for the quick development of well-preserved latent fingerprint on multiple substrates, including plastic, glass, aluminum foil, metallic surfaces, and so forth, without any additional treatment, based on aggregation-induced enhanced emission-active conjugated polyelectrolyte (CPE) 3,3'-((2-(4-(1,2-diphenyl-2-(p-tolyl)vinyl)phenyl)-7-(7-methylbenzo[c][1,2,5]thiadiazol-4-yl)-9H-fluorene-9,9-diyl)bis(hexane-6,1-diyl))bis(1-methyl-1H-imidazol-3-ium) bromide, revealing clearly the third-level details (ridges, bifurcations, and pores) with high selectivity, high contrast, and no background interference even by blood stains, confirming the ability of the proposed technique for LFP detection with high resolution...
October 16, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28960300/differentiation-of-human-hair-by-colour-and-diameter-using-light-microscopy-digital-imaging-and-statistical-analysis
#20
M Mills, J Bonetti, T Brettell, L Quarino
This research introduces and evaluates a novel method that offers the potential of providing objective criteria to forensic microscopical hair comparisons. The method combines hair diameter with numeric characterisations of red, green, and blue colour content as determined with the use of digital imaging at defined locations of the hair. Thirty hairs were collected from each of twenty participants, all with naturally coloured brown hair. The hairs were examined with an Olympus BX53® polarising light microscope and digital images were viewed with an Olympus DP72® camera under 400× magnification...
September 27, 2017: Journal of Microscopy
keyword
keyword
28679
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"