219 research outputs found
Edge to Cloud Tools: A Multivocal Literature Review
Edge-to-cloud computing is an emerging paradigm for distributing
computational tasks between edge devices and cloud resources. Different
approaches for orchestration, offloading, and many more purposes have been
introduced in research. However, it is still not clear what has been
implemented in the industry. This work aims to merge this gap by mapping the
existing knowledge on edge-to-cloud tools by providing an overview of the
current state of research in this area and identifying research gaps and
challenges. For this purpose, we conducted a Multivocal Literature Review (MLR)
by analyzing 40 tools from 1073 primary studies (220 PS from the white
literature and 853 PS from the gray literature). We categorized the tools based
on their characteristics and targeted environments. Overall, this systematic
mapping study provides a comprehensive overview of edge-to-cloud tools and
highlights several opportunities for researchers and practitioners for future
research in this area
Ethical and Forensic Issues in the Medico-Legal and Psychological Assessment of Women Asylum Seekers
Asylum-seeking migrants represent a vulnerable segment of the population, and among them, women constitute an even more vulnerable group. Most of these women and girls have been exposed to threats, coercion, and violence of many kinds, including rape, forced prostitution, harassment, sexual slavery, forced marriage and pregnancy, female genital mutilation/excision, and/or other violations of their rights (e.g., deprivation of education, prohibition to work, etc.). The perpetrators of the violence from which they flee are often their own families, partners, and even institutional figures who should be in charge of their protection (such as police officers). In the process for the acceptance/rejection of an asylum application, the forensic and psychological certification can make the difference between successful and unsuccessful applications, as it can support the credibility of the asylum seeker through an assessment of the degree of compatibility between the story told and the diagnostic and forensic evidence. This is why constant and renewed reflection on the ethical, forensic, and methodological issues surrounding medico-legal and psychological certification is essential. This article aims to propose some reflections on these issues, starting from the experience of the inward healthcare service dedicated to Migrant Victims of Maltreatment, Torture, and Female Genital Mutilation operating since 2018 at the Institute of Forensic Medicine of the University Hospital of Palermo
A Forensic Diagnostic Algorithm for Drug-Related Deaths: A Case Series
The best evidence provided in the literature worldwide suggests the importance of harmonizing the investigation in drug-related fatalities. In this study, the application of a multidisciplinary approach in eight cases of drug-related deaths is presented. Although death scene findings could be highly suggestive of drug intoxication, external examination and toxicological screening test alone are insufficient. There are several variables, and it is not always easy to give the proper interpretation of the drug detection. A complete autopsy is necessary to correctly complete organ and tissues sampling for further histological and toxicological studies and obtain body fluids. The use of peripheral blood is recommended to avoid artifacts. The collection of many specimens is warranted to get more responses. The sampling aims to provide a picture of the distribution of the substance in the body.
The sample and the selection of the drugs and the matrices to investigate are case-dependent. The presented diagnostic algorithm provides the coroner with all the elements to investigate drug-related deaths and cooperate with toxicologists. Toxicological forensic diagnosis is still extremely heterogeneous in regional and national contexts. Funding for method development, research, networking, facilities, and technologies improvement is mandatory to standardize the toxicological investigation
Iatrogenic Sigma Perforation in a Patient with Localized Rectal and Sigma AL Amyloidosis: A Forensic Case and a Literature Review
Amyloidosis is defined as a rare group of 30 protein-folding diseases characterized by the extracellular deposition of a specific soluble precursor protein that aggregates in the form of insoluble f ibrils. The gastrointestinal tract (GI) is a common site for amyloid deposits: Among patients with systemic amyloidosis, at least 70% present with gastrointestinal deposition. Rarely, the deposition is exclusively localized in this area, leading to various gastrointestinal symptoms (bleeding, weight loss, etc.). In this case report, we present a rare and unusual form of localized gastrointestinal amyloidosis, diagnosed after a post-mortem examination of an 83-year-old woman who died due to septic shock resulting from post-colonoscopy iatrogenic perforation of the sigma, in a suspected medical liability case. Morphological examination revealed AL amyloid deposits within the muscular wall of the submucosal vessels of the rectum, which caused increased friability of the vessels and ischemic changes in the intestinal mucosa. A renal cell carcinoma (RCC) was found, which might be related to amyloid deposits, as reported by the literature. Amyloid deposits are an unknown and unpredictable pathological substrate that increase the risk of iatrogenic perforation. Analysis of the medical documentation did not reveal any censurable conduct in terms of prescribing the procedure, technical execution, or subsequent management of the patient following the perforation. GI amyloidosis should be part of the risk stratification of patients with rectal bleeding and gastrointestinal symptoms, and awareness is essential to guide subsequent diagnostic and therapeutic approaches and investigate underlying causes
Radiolabelled PSMA PET/CT in breast cancer. A systematic review
BACKGROUND: Radiolabelled prostate-specific membrane antigen (PSMA)-based PET/CT is a whole-body imaging technique currently performed for the detection of prostate cancer lesions. PSMA has been also demonstrated to be expressed by the neovasculature of many other solid tumours. The aim of this review is to evaluate the possible diagnostic role of radiolabelled PSMA PET/CT in breast cancer.
MATERIAL AND METHODS: A comprehensive literature search of the PubMed/MEDLINE, Scopus, Embase and Cochrane Library databases was conducted to find relevant published articles about the diagnostic performance of radiolabelled PSMA PET/CT in breast cancer.
RESULTS: The comprehensive computer literature search revealed 652 articles. On reviewing the titles and abstracts, 640 articles were excluded because the reported data were not within the field of interest of this review. Twelve articles were selected and retrieved in full-text version; no additional study was found when screening the references of these articles. In total, 12 articles were included in the systematic review.
CONCLUSIONS: Further studies enrolling a wider population are needed to clarify th
The analysis of SUDEP forensic autopsies leading to preventable events
Introduction: The diagnosis of unexpected death by excluding non-natural causes,
particularly in subjects with epilepsy, is a topic of interest and it is difficult to identify
in the forensic field. Health professionals sometimes are faced with cases of sudden
death, generally in young adults with a long history of epilepsy that require, for
judicial purposes, an explanation in terms of cause and means to determine the
death. SUDEP is an entity diagnosed by the exclusion of other causes that may have
led to death, and then for forensic purposes, it requires particular attention and
knowledge, and there is difficulty in identifying it. Our contribution aims to illustrate
the scientific community pathological findings, medical history, and circumstantial
evidence of four cases of sudden death in epileptic subjects.
Method: We illustrated four cases of judicial autopsies from the Institute of Forensic
Medicine of Palermo, Italy; the purpose was to exclude the criminal intervention
in determining the death as non-natural. The study of victims’ medical history, the
toxicological investigations, and the autopsy findings analyzed both from macroscopic
and microscopic aspects have made it possible to highlight some findings that can be
traced back to SUDEP despite the small sample of subjects studied.
Results: These presented findings of four SUDEP cases could help forensic
pathologists in recognizing this entity, by highlighting its characteristics, and
allowing for a pathological classification, also in relation to the use of drugs for
epilepsy treatment and circumstances of death.
Discussion: To obtain a definite diagnosis of SUDEP, a complex investigation
process is required in a multidisciplinary approach. Considering the literature review
with criticism, it could allow health professionals to select the characteristics of
epileptic patients at risk of sudden death. Processing human behaviors, molecular
and histopathological findings of the autopsies, but also the physiological, and
pathological human body system functions thanks to Artificial Intelligence, could
be the key to explaining SUDEP mechanisms and the future results to prevent it
Regulatory role of rpL3 in cell response to nucleolar stress induced by Act D in tumor cells lacking functional p53
Many chemotherapeutic drugs cause nucleolar stress and p53-independent pathways mediating the nucleolar stress response are emerging. Here, we demonstrate that ribosomal stress induced by Actinomycin D (Act D) is associated to the up-regulation of ribosomal protein L3 (rpL3) and its accumulation as ribosome-free form in lung and colon cancer cell lines devoid of p53. Free rpL3 regulates p21 expression at transcriptional and post-translational levels through a molecular mechanism involving extracellular-signal-regulated kinases1/2 (ERK1/2) and mouse double minute-2 homolog (MDM2). Our data reveal that rpL3 participates to cell response acting as a critical regulator of apoptosis and cell migration. It is noteworthy that silencing of rpL3 abolishes the cytotoxic effects of Act D suggesting that the loss of rpL3 makes chemotherapy drugs ineffective while rpL3 overexpression was associated to a strong increase of Act D-mediated inhibition of cell migration. Taking together our results show that the efficacy of Act D chemotherapy depends on rpL3 status revealing new specific targets involved in the molecular pathways activated by Act D in cancers lacking of p53. Hence, the development of treatments aimed at upregulating rpL3 may be beneficial for the treatment of these cancers
Spectroscopic fingerprints of iron-coordinated cobalt and iron porphyrin layers on graphene
Achieving design capabilities of monolayer 2D functional catalysts represents a challenging perspective. Coordinated single metal atom sites can offer tailored electronic configuration, ligation geometries, chemical activity and selectivity, together with stability. We report spectroscopic evidence of the formation of a 2D metal-organic framework supported by a single graphene sheet in which coordination among Tetra-Pyridyl-Porphyrins (TPyPs) is spontaneously obtained by exploiting single iron atoms. The spectroscopic characterization, together with ab initio methods, reveals that metal inter-molecular coordination occurs via the terminal nitrogen atoms contained in the pyridinic residues of adjacent TPyPs. Interestingly, the peripheral coordination of metal atoms is found to affect the electronic configuration of the porphyrins core. Due to the chemical stability of the supporting graphene layer, its weak interaction with the metal-organic framework, and the known electrochemical activity of the latter, this system represents an optimal candidate for the design and engineering of prototype 2D electrocatalytic materials
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