117 research outputs found
Web interactive non intrusive load disaggregation system for active demand in smart grids
A Smart Grid combines the use of traditional technology with innovative digital solutions, making the management of the electricity grid more flexible. It allows for monitoring, analysis, control and communication within the supply chain to improve efficiency, reduce the energy consumption and cost, and maximize the transparency and reliability of the energy supply chain. The optimization of energy consumption in Smart Grids is possible by using an innovative system based on Non Intrusive Appliance Load Monitoring (NIALM) algorithms, in which individual appliance power consumption information is disaggregated from single-point measurements, that provide a feedback in such a way to make energy more visible and more amenable to understanding and control. We contribute with an approach for monitoring consumption of electric power in households based on both a NILM algorithm, that uses a simple load signatures, and a web interactive systems that allows an active role played by users
Stump appendicitis. A case report
AbstractIntroductionToday, the diagnosis of SA is usually not considered as the etiology for right lower quadrant pain in patient with history of appendectomy, resulting in delaying making the correct diagnosis and treatment. Obviously, other more common causes should be excluded first.DiscussionStump appendicitis (SA) was first described by Rose in 1945. The commonest presenting symptom are abdominal pain (right lower quadrant pain 59%, non specific abdominal pain 16%, and central abdominal pain radiating to the right lower quadrant 14%).Presentation of caseA 54-year-old appendectomized woman presented with recent history of abdominal pain with periumbilical pain radiating to the right side and in the right iliac fossa, in the absence of fever, vomiting or other symptoms.Elective colonoscopy revealed appendicular orifice clogged by big fecalith, with hyperemic surrounding mucosa and CT confirmed “stump appendicitis”. After 30 days of therapy with metronidazole 500mg/day and mesalazine 1000mg×2/day, the patient was submitted to surgery and appendectomy was performed, with a specimen of 24mm stump appendicitis.ConclusionSA may well be considered as one of the differential diagnoses of acute right lower abdominal pain even in patients with history of appendicectomy
Trasformazione del paesaggio, sistemi insediativi e borghi rurali
Introduction at section 1.3Â Landscape TransformationsIntroduzione alla sezione 1.3Â Le trasformazioni del paesaggi
Machine Learning Classification of Mediterranean Forest Habitats in Google Earth Engine Based on Seasonal Sentinel-2 Time-Series and Input Image Composition Optimisation
The sustainable management of natural heritage is presently considered a global strategic issue. Owing to the ever-growing availability of free data and software, remote sensing (RS) techniques have been primarily used to map, analyse, and monitor natural resources for conservation purposes. The need to adopt multi-scale and multi-temporal approaches to detect different phenological aspects of different vegetation types and species has also emerged. The time-series composite image approach allows for capturing much of the spectral variability, but presents some criticalities (e.g., time-consuming research, downloading data, and the required storage space). To overcome these issues, the Google Earth engine (GEE) has been proposed, a free cloud-based computational platform that allows users to access and process remotely sensed data at petabyte scales. The application was tested in a natural protected area in Calabria (South Italy), which is particularly representative of the Mediterranean mountain forest environment. In the research, random forest (RF), support vector machine (SVM), and classification and regression tree (CART) algorithms were used to perform supervised pixel-based classification based on the use of Sentinel-2 images. A process to select the best input image (seasonal composition strategies, statistical operators, band composition, and derived vegetation indices (VIs) information) for classification was implemented. A set of accuracy indicators, including overall accuracy (OA) and multi-class F-score (Fm), were computed to assess the results of the different classifications. GEE proved to be a reliable and powerful tool for the classification process. The best results (OA = 0.88 and Fm = 0.88) were achieved using RF with the summer image composite, adding three VIs (NDVI, EVI, and NBR) to the Sentinel-2 bands. SVM and RF produced OAs of 0.83 and 0.80, respectively
Retrospective analysis of management of ingested foreign bodies and food impactions in emergency endoscopic setting in adults
Background: Ingestion of foreign bodies and food impaction represent the second most common endoscopic
emergency after bleeding. The aim of this paper is to report the management and the outcomes in 67 patients
admitted for suspected ingestion of foreign body between December 2012 and December 2014.
Methods: This retrospective study was conducted at Palermo University Hospitals, Italy, over a 2-year period. We
reviewed patients’ database (age, sex, type of foreign body and its anatomical location, treatments, and outcomes
as complications, success rates, and mortalities).
Results: Foreign bodies were found in all of our 67 patients. Almost all were found in the stomach and lower
esophagus (77 %). The types of foreign body were very different, but they were chiefly meat boluses, fishbones
or cartilages, button battery and dental prostheses. In all patients it was possible to endoscopically remove the
foreign body. Complications related to the endoscopic procedure were unfrequent (about 7 %) and have been
treated conservatively. 5.9 % of patients had previous esophageal or laryngeal surgery, and 8.9 % had an underlying
esophageal disease, such as a narrowing, dismotility or achalasia.
Conclusion: Our experience with foreign bodies and food impaction emphasizes the importance of endoscopic
approach and removal, simple and secure when performed by experienced hands and under conscious sedation
in most cases.
High success rates, lower incidence of minor complications, reduction of the need of surgery and reduced
hospitalization time are the strengths of the endoscopic approach
Measuring the impact of COVID-19 restrictions on mobility: A real case study from Italy
When COVID-19 first struck the provinces of Northern Italy in early 2020 (especially in Lombardy and in EmiliaRomagna), the conditions there made it a perfect storm. The virus outbreak spread with an unusual violence (in the period from late February to April 2020), with a catastrophic toll in terms of human deaths. Taken by surprise, Italy mandated a complete nation-wide lockdown, successively resorting to ministerial decrees alleviating and postponing the restrictions. Now more than ever, there is an increased awareness on ICT used to combat the pandemic. In this article, we present a quantitative analysis evidencing the impact of restrictions on mobility. To this end, we rely on a vehicular mobility dataset confined in the downtown area of Bologna, Italy. Pursuing the objective, we propose a modified version of a state-of-theart data mining algorithm, allowing us to efficiently identify and quantify mobility flows. The proposal, if combined with additional data sources, could allow for a fine-grained and timely decision making, combating the pandemic
Securing Serverless Workflows on the Cloud Edge Continuum
Serverless Computing is an emergent solution that helps deploy applications in the Cloud and sometimes on the Edge, reducing the integration time and the maintenance cost of the data centers. The lack of a standard for functions and the impossibility of connecting them together in complex workflows is currently holding back the growth of Function-as-a-Service (FaaS) use. In this scenario, OpenWolf tries to overcome these issues by implementing a solution to spread functions over the Cloud-Edge Continuum and connecting them using a standardized Domain-Specific Language (DSL) to describe a serverless based workflow. In this work, we aim to enhance the OpenWolf project, solving many security threats the engine suffers, like the authenticated and authorized execution of workflows and the injection of malicious functions inside a workflow. We will validate this new version of OpenWolf in a Smart City surveillance scenario, providing validation and performance tests
TRANQUILLITY AREAS MAPPING: UN PROGETTO NEL PARCO NAZIONALE DELLA SILA. PRIMI RISULTATI E IMPORTANZA DELL’INTERVENTO IN EPOCA COVID-19
The permanence in natural environments and the contact with nature, even in urban areas of proximity (neighbourhood green areas or condominiums), have a relaxing and regenerative power and stimulate the fundamental vital processes. The relationship with open spaces and greenery is an element that promotes personal and collective well-being already in everyday life. This has become even more relevant during the current COVID-19 pandemic crisis, which has significantly changed individual and social life habits, upsetting interpersonal relationships and the relationship with the outside world often experienced from a window. In this context, the Project "Tranquillity Areas Mapping" is inserted in the Sila National Park, of which we report the first results. Carried out in collaboration between CNR-ISAFOM, Department of Agraria of the Mediterranea University of Reggio Calabria, and Sila National Park, the project aims to identify Areas of Tranquillity within the UNESCO Mab Area of the Park, based on the analysis of qualitative and quantitative parameters that characterize them. In its initial stages (September 2019), the project has seen the activation of participatory processes with the involvement of institutions and key local actors. The work presented here deals with the relevance of participation in the planning and management processes of protected natural areas and, in particular, of national parks. The processes under study play an increasingly important role, especially during the COVID-19 emergency, which has accentuated the need to stimulate public interest in natural parks. Increasingly, natural parks are being recognized for their role in providing environmental ecosystem services. Among these, cultural ecosystem services include preserving those "oases of tranquility" more easily accessible to the population of the territories concerned. A number of participatory experiences carried out during the project are presented. Several convergent approaches were used, making the most of both e-participation and more traditional forms of confrontation (in-depth interviews, focus groups). Finally, the methods used, and the results obtained from work carried out are indicated as potential developments for mapping the quiet areas of the Sila National Park, in view of sustainable management of the latter
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