Search results for "forensic"
showing 10 items of 1701 documents
Useless and limits of Postmortem CT (PMCT) in a complex case of preterm infant murder
2023
The present case-report empathizes the usefulness of post-mortem computed tomography (PMCT) in the detection of live birth signs in a baby found dead, comparing the results with standard autoptic, histologic and immunohistochemical examinations.The report describes the case of a new-born who was thrown out on the footpath from a window of the fifth floor according to the investigative police, whilst the mother has hidden herself immediately after childbirth.PMCT showed diffusely aerated lung parenchyma with signs of severe lung distress, air in the airways with no fluid inside, and air in the upper gastro-intestinal tract, in absence any resuscitation manoeuvres performed on the baby at del…
SANIST: optimization of a technology for compound identification based on the European Union directive with applications in forensic, pharmaceutical …
2016
Electrospray Ionization and collision induced dissociation tandem mass spectrometry are usually employed to obtain compound identification through a mass spectra match. Different algorithms have been developed for this purpose (for example the nist match algorithm). These approaches compare the tandem mass spectra of the unknown analyte with the tandem mass spectra spectra of known compounds inserted in a database. The compounds are usually identified on the basis of spectral match value associated with a probability of recognition. However, this approach is not usually applied to multiple reaction monitoring transition spectra achieved by means of triple quadrupole apparatus, mainly due to…
Use of bitumen-stabilised ballast for improving railway trackbed conventional maintenance
2018
Despite its many advantages, ballasted track needs frequent maintenance to ensure an adequate quality of service. However, tamping, traditionally used to correct geometry, causes ballast degradation and loosening of the already compacted ballast layer, which quickly returns the track to its pre-maintenance position. Then, other maintenance techniques such as stoneblowing, as well as diverse solutions that reinforce trackbed, have been developed to reduce ballast settlement and particles degradation. Given the need to further advance research in this field, bitumen-stabilised ballast (BSB) has started to be investigated by the authors as a feasible solution thanks to its easy and quick appl…
Antiglomerular basement membrane antibodies in human sera: Detection by a modified micro-ELISA
1985
An enzyme-linked immunosorbent assay (ELISA) for detection of antibodies to human glomerular basement membrane has been developed. Special emphasis has been put on the choice of microtiter plates which were coated with a collagenase digest of human glomerular basement membrane. Results differed markedly between the different microtiter plates. Best results were obtained with a flexible polyvinylchloride microtiter plate with flat wells (Dynatec). This plate exhibited the highest positive/negative ratio and the lowest intraassay standard deviation. Optimal conditions for each step in the ELISA have been determined. The assay proved to be specific, sensitive, and reproducible. Circulating ant…
Pigmented desmoplastic trichilemmoma
2016
Desmoplastic trichilemmoma (DT), the pseudomalignant variant of conventional trichilemmoma described by Hunt et al in 1990, displays a superficial lobular growth pattern of glycogen-rich cells with peripheral nuclear palisading surrounded by a thickened basement membrane. DT differs from its conventional counterpart by showing a central hyalinized area with epithelial cords and strands mimicking invasive carcinoma. We report a case that fully satisfies the criteria for DT and, in addition, shows an extensive melanocytic cell component and prominent melanin deposition. To our knowledge, a pigmented variant of DT has not been reported and should be recognized in order to appropriately face th…
Formation of basement membrane in extracapillary proliferates in rapidly progressive glomerulonephritis
1977
In the extracapillary proliferations (crescents) of the glomeruli in glomerulonephritis, basement membranes appear and in addition "secretory bodies" are formed in the cisternae of the rough endoplasmatic reticulum. The findings permit the conclusion that proliferated visceral epithelial cells are involved in the crescent formation to a greater extent than previously assumed.
Factores que afectan al análisis biológico de las muestras de agresiones sexuales
2007
El concepto multidisciplinar de Ciencias Forenses se ha consolidado en los últimos años integrando un amplio espectro de profesionales de distintas disciplinas que ha abierto nuevas áreas de trabajo, en la mayoría de las cuales la interpretación del resultado se basa en la comparación con un material de referencia. Este trabajo pretende exponer brevemente una revisión de la casuística de Delitos Contra la Libertad Sexual (DCLS) estudiados en los laboratorios de Biología Forense y evaluar el rendimiento de la prueba de ADN a lo largo de los años en dos aspectos: uno en las situaciones inherentes a la metodología y otro en lo que respecta al cotejo de los vestigios analizados con las muestras…
<title>Performance problems of electrochromic coatings</title>
2003
The performance is actual problem of electrochromic coatings. The service and shelf life and cycling capacity are main performance characteristics. By solid-state ionics point of view any electrochromic cell based on phenomena with ion insertion - extraction processes is functioning as solid-state rechargeable battery. The main performance characteristics of electrochromic cells are similar. Performance of electrochromic coatings based on amorphous WO3 films and protons conducting electrolytes is limited by reversibility of ion insertion-extraction reactions, which causes degradation of cell components. The migration of water in the cell and hydration together with ion insertion-extraction …
Evaluation of the bending behaviour of laminated glass beams via electronic speckle pattern interferometry
2017
The paper is devoted to the experimental analysis of the kinematical and mechanical behaviour of laminated glass beam structures. In particular, the utilized laminated glass specimens are composed of two glass layers bonded by a polymer layer constituted by Ethylene-vinyl acetate whose thickness has been nominally considered as constant for all the specimens. The experimental behaviour of the analyzed specimens is deduced by applying Electronic Speckle- Pattern Interferometry technique; actually, among optical methods this technique (handled by phase-stepping technique) is very effective to obtain a full-field displacement map and to numerically achieve the longitudinal strain. In particula…
Bibliometric analysis of the Annual Review of Legal Psychology journal between 1991-2019
2021
[EN]: The present study carries out a bibliometric analysis of Annual Review of Legal Psychology from 1991 to 2019. Data were collected from a database that allows for the analysis of authors, institutions, countries, gender, topics, and impact. The results enable us to observe gender discrepancies among authors, with a a higher frequency of women (50.2%), and the number of signatures (53.7% men). Over the years there is an increase in the number of authors and signatures, of co-authorship, a higher presence of international signatures, representing 23.5% between 2011 and 2019. Three collaboration groups were identified, two from Spain and one from Colombia. Categories of Legal and Forensic…