2,192 research outputs found
Peculiar and Unusual Drowning in Waste Oil from Motor Vehicles: Case Report
Drowning is one of the most frequent causes of accidental or suicidal death, and more rarely it is associated with
a homicide. Cases of drowning in water or in the sea are common. The authors report an unusual and peculiar case
of drowning, that of a woman who accidentally fell inside a collection tank of waste oil of motor vehicles
Quantum control and long-range quantum correlations in dynamical Casimir arrays
The recent observation of the dynamical Casimir effect in a modulated
superconducting waveguide, coronating thirty years of world-wide research,
empowered the quantum technology community with a powerful tool to create
entangled photons on-chip. In this work we show how, going beyond the single
waveguide paradigm using a scalable array, it is possible to create
multipartite nonclassical states, with the possibility to control the
long-range quantum correlations of the emitted photons. In particular, our
finite-temperature theory shows how maximally entangled states can be
engineered in a realistic setup. The results here presented open the way to new
kinds of quantum fluids of light, arising from modulated vacuum fluctuations in
linear systems
Set membership fault detection for nonlinear dynamic systems
In this chapter, an innovative approach to fault detection for nonlinear dynamic systems is proposed, based on the recently introduced quasi-local set membership- identification method, overcoming some relevant issues proper of the “classical” techniques. The approach is based on the direct identification from experimental data of a suitable filter and related uncertainty bounds. These bounds are used to detect when a change (e.g., a fault) has occurred in the dynamics of the system of inter- est. The main advantage of the approach compared to the existing methods is that it avoids the utilization of complex modeling and filter design procedures, since the filter/observer is directly designed from data. Other advantages are that the approach does not require to choose any threshold (as typically done in many “classical” tech- niques), and it is not affected by under-modeling problems. An experimental study regarding fault detection for a drone actuator is finally presented to demonstrate the effectiveness of the proposed approach
Immunohistochemical detection of early myocardial infarction: a systematic review
The postmortem diagnosis of early myocardial infarction is a challenge for forensic pathologists because the routine histology is neither specific. Many authors have suggested the use of the immunohistochemistry to fill the gaps in the histological diagnosis of early myocardial infarction. This review aims to analyse advances of immunohistochemical detection of early cardiac damage due to ischaemia. To this purpose, we reviewed experimental studies that investigated immunohistochemical markers and their estimated timing of expression. The review was performed according to specific inclusion and exclusion criteria, and a total of 23 studies assessing the immunohistochemical markers for the diagnosis and timing of early myocardial infarction were identified. The literature review highlights that the analysed markers are complement components, others being inflammatory mediators, cardiac cell proteins, plasma proteins, stress or hypoxia-induced factors and proteins associated with heart failure. All studies demonstrate the effectiveness of the tested markers in the early detection of myocardial infarction in both animal and human samples
An unusual case of sudden cardiac death during sexual intercourse
The most common cause of sudden death during sexual intercourse in adults is heart disease, and it is usually the male, whereas the death of the woman is unusual. Generally, in these cases, death occurs as a result of cardiovascular disease. The authors report an unusual case of the sudden death of a young woman during sexual intercourse. The post-mortem investigations (autopsy, cardiac nuclear magnetic resonance and cardiac histology) demonstrated a previously undiagnosed arrhythmogenic right ventricular cardiomyopathy. The terminal cause of death was a malignant arrhythmia from arrhythmogenic right ventricular cardiomyopathy. This is the first report of a case in which sexual activity can be regarded as the triggering factor combined with cardiac disease to the woman's death
On the dependence of magnetic stochastic resonance features on the features of magnetic hysteresis
Numerical study of magnetic stochastic resonance (SR) in several magnetic systems having different hysteresis loops was performed. The various hysteresis loops were modeled by using Preisach model in which several identification functions were used. The results showed the dependence of SR on the parameters of Preisach function. The results also showed how the field H/sub 0/ shifted the onset of SR and how a large dispersion of the distribution of hysterons degraded the SR
Soccer Ball Detection by Comparing Different Feature Extraction Methodologies
This paper presents a comparison of different feature extraction methods for automatically recognizing soccer ball patterns through a probabilistic analysis. It contributes to investigate different well-known feature extraction approaches applied in a soccer environment, in order to measure robustness accuracy and detection performances. This work, evaluating different methodologies, permits to select the one which achieves best performances in terms of detection rate and
CPU processing time. The effectiveness of the different methodologies is demonstrated by a huge number of experiments on real ball examples under challenging
conditions
Sudden death in water: Diagnostic challenges
The authors report a case of sudden death in a breath-holding diver and highlight the forensic diagnostic difficulties in opining the cause of sudden death in water. The autopsy showed increased thickness of the left ventricular wall with a distinct pattern of concentric hypertrophy, evident particularly in the subaortic interventricular septum. Histological examination revealed diffuse interstitial fibrosis and associated findings of multifocal myocyte disarray especially evident in the subaortic interventricular septum. The analysis and discussion of this case made it possible to attribute sudden death to a lethal arrhythmia following myocyte disarray and hypoxia caused by breath-holding, the triggering factor of apnea. This case demonstrates the importance of a thorough forensic investigation, particularly in histological terms, in subjects found dead in water, in order to ascertain the real cause of death, which may not be always ascribable to drowning
La nascita degli studi cinesi in Europa: i missionari gesuiti come maestri di lingua e i maestri di lingua dei missionari
Il contatto tra i gesuiti e la società cinese alla fine del XVI secolo e all’inizio del XVII è stato dinamico e complesso e ha coinvolto, dalle due parti, modelli culturali potenti e radicati. Il presente saggio presenta alcuni aspetti dell’interazione tra missionari e letterati cinesi relativamente all’ambito della riflessione linguistica sul cinese
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