Search results for "Forensic"
showing 10 items of 1701 documents
Linking tephrochronology and soil characteristics in the Sila and Nebrodi mountains, Italy
2017
Recent studies have demonstrated that soils formed on pyroclastic ash deposits are much more common in the Mediterranean area than previously assumed. These soils are an important key to understanding past volcanic events and landscape evolution. Chronological information in soils of Quaternary volcanic events, however, remains still poorly understood in southern Italy. Using a multi-method forensic approach, we explore the origin and age of volcanic deposits (soils) in Sicily and Calabria. The geochemical signature of the soil was compared to the chemical fingerprint of the magmas of potential source areas of southern Italian volcanoes. The results indicate that the investigated soils on t…
Unknown Deformations on the Facades of the Pyramid of Khafre at Giza Pyramid Complex in Egypt
2016
Abstract The pyramids of Giza in Egypt are the architectural heritage of ancient civilizations and for many thousand years served as great examples of ancient design, planning and construction solutions. Their scale is grandiose and the attempts of ancient architects to find perfect forms to ensure the structure stands for eternity are admirable. The initial geometry of the structures, their form, proportions and symmetry, was adapted to construction material and technologies available at that time. However, during more than 4500 years these monuments were damaged and partly destroyed; some pyramids were razed to the ground due to construction faults and seismic activity. The second largest…
Large carnivore attacks on hominins during the Pleistocene: a forensic approach with a Neanderthal example
2015
DOI: 10.1007/s12520-015-0248-1 URL: http://link.springer.com/article/10.1007%2Fs12520-015-0248-1 Filiació URV: SI Interaction between hominins and carnivores has been common and constant through human evolution and generated mutual pressures similar to those present in worldwide modern human-carnivore conflicts. This current interaction is sometimes violent and can be reflected in permanent skeletal pathologies and other bone modifications. In the present paper, we carry out a survey of 124 forensic cases of dangerous human-carnivore encounters. The objective is to infer direct hominin-carnivore confrontation during the Pleistocene, which is important to understand behavioral changes during…
The cork viewed from the inside
2015
International audience; Cork is the natural material stripped from the outer bark of cork oak. It is still the most used stopper to seal wine bottles and to preserve wine during storage. Cork stoppers are sorted in different classes according to apparent defects, named lenticels, which can be related to the cork macroporosity. The more lenticels there are, the worst cork quality is. The present work aims at investigating defects analysis of cork stoppers from two classes by comparing images recorded by digital photography and neutron imaging. Surface analysis of defects obtained from photography leads to more surface defects in class 4 (6.7%) than in class 0 (4.1%). Neutron radiography and …
A review of diagnostics and prognostics of low-speed machinery towards wind turbine farm-level health management
2016
Abstract Large wind farms are gaining prominence due to increasing dependence on renewable energy. In order to operate these wind farms reliably and efficiently, advanced maintenance strategies such as condition based maintenance are necessary. However, wind turbines pose unique challenges in terms of irregular load patterns, intermittent operation and harsh weather conditions, which have deterring effects on life of rotating machinery. This paper reviews the state-of-the-art in the area of diagnostics and prognostics pertaining to two critical failure prone components of wind turbines, namely, low-speed bearings and planetary gearboxes. The survey evaluates those methods that are applicabl…
Method for 3D fibre reconstruction on a microrobotic platform
2015
Automated handling of a natural fibrous object requires a method for acquiring the three-dimensional geometry of the object, because its dimensions cannot be known beforehand. This paper presents a method for calculating the three-dimensional reconstruction of a paper fibre on a microrobotic platform that contains two microscope cameras. The method is based on detecting curvature changes in the fibre centreline, and using them as the corresponding points between the different views of the images. We test the developed method with four fibre samples and compare the results with the references measured with an X-ray microtomography device. We rotate the samples through 16 different orientatio…
Procedure for a Temperature-Traffic Model on Rubberized Asphalt Layers for Roads and Railways
2017
The impact of temperature on the mechanical properties and thermal susceptibility of the railway bituminous sub-ballast layer, has served as motivation to develop the advanced measurement of thermal cycles in this layer and, an evaluation of the average seasonal temperatures interpolated by sinusoidal functions, of which characteristic parameters are determined. According to weather situation, Barber’s temperature model was used to prove the effectiveness for the railway superstructure. It is included the assessment of improved modified asphalt mixes performed with coarse rubber from scrap tires, having 1.5 to 3 percent of crumb rubber (particle size 0.2-4 mm) by weight of the total mix, as…
Hypervisor Memory Introspection and Hypervisor Based Malware Honeypot
2020
Memory acquisition is a tool used in advanced forensics and malware analysis. Various methods of memory acquisition exist. Such solutions are ranging from tools based on dedicated hardware to software-only solutions. We proposed a hypervisor based memory acquisition tool. [22]. Our method supports ASLR and Modern operating systems which is an innovation compared to past methods [27, 36]. We extend the hypervisor assisted memory acquisition by adding mass storage device honeypots for the malware to cross and propose hiding the hypervisor using bluepill technology.
Quistes de uraco en adultos. Presentación de 3 casos y revisión de la literatura
2022
Resumen El uraco es un grueso cordon fibroso que aparece a partir del quinto mes de gestacion como consecuencia de la obliteracion de la alantoides. Los quistes de origen uracal se producen como consecuencia de un defecto en la obliteracion de dicho conducto, anomalia que se detecta principalmente en ninos y raramente en adultos. Presentamos 3 casos de quistes uracales en adultos, uno de ellos detectado durante el estudio de dolor abdominal y los otros 2 hallados de forma incidental durante el estudio de otras patologias. En ningun caso se sospecho clinicamente la posibilidad de quistes uracales. Histologicamente, estas lesiones se encuentran revestidas por epitelio de tipo urotelial con ex…
El documento de voluntades anticipadas. Comparativa de la legislación actual en el marco de la Unión Europea
2021
Resumen La Ley 41/2002, de 14 de noviembre, basica reguladora de la autonomia del paciente da valor legal vinculante a las voluntades anticipadas (VA) en Espana. Sin embargo, la situacion en cada pais de la Union Europea es distinta y desconocida para la mayoria del personal sanitario. Para conocer esas diferencias, se realizo una recogida y estudio de las distintas legislaciones en materia de derechos del paciente, y se establecio una comparativa actualizada de las caracteristicas que cada pais otorga a las VA. De los 28 paises de la Union Europea, 15 han desarrollado legislacion especifica en materia de VA, y le otorgan caracter vinculante el 86% si se utiliza la formulacion escrita. Siet…