102,255 research outputs found
How i do it: Lung ultrasound
No full textIn the last 15 years, a new imaging application of sonography has emerged in the clinical arena: lung ultrasound (LUS). From its traditional assessment of pleural effusions and masses, LUS has moved towards the revolutionary approach of imaging the pulmonary parenchyma, mainly as a point-of-care technique. Although limited by the presence of air, LUS has proved to be useful in the evaluation of many different acute and chronic conditions, from cardiogenic pulmonary edema to acute lung injury, from pneumothorax to pneumonia, from interstitial lung disease to pulmonary infarctions and contusions. It is especially valuable since it is a relatively easy-to-learn application of ultrasound, less technically demanding than other sonographic examinations. It is quick to perform, portable, repeatable, non-ionizing, independent from specific acoustic windows, and therefore suitable for a meaningful evaluation in many different settings, both inpatient and outpatient, in both acute and chronic conditions.In the next few years, point-of-care LUS is likely to become increasingly important in many different clinical settings, from the emergency department to the intensive care unit, from cardiology to pulmonology and nephrology wards. © 2014 Gargani and Volpicelli; licensee BioMed Central Ltd
A simple, reproducible and accurate lung ultrasound technique for COVID-19: when less is more
No full textSonographic signs and patterns of COVID-19 pneumonia
No full textThe pandemic of COVID-19 is seriously challenging the medical organization in many parts of the world. This novel corona virus SARS-CoV-2 has a specific tropism for the low respiratory airways, but causes severe pneumonia in a low percentage of patients. However, the rapid spread of the infection during this pandemic is causing the need to hospitalize a high number of patients. Pneumonia in COVID-19 has peculiar features and can be studied by lung ultrasound in the early approach to suspected patients. The sonographic signs are non-specific when considered alone, but observation of some aspects of vertical artifacts can enhance the diagnostic power of the ultrasound examination. Also, the combination of sonographic signs in patterns and their correlation with blood exams in different phenotypes of the disease may allow for a reliable characterization and be of help in triaging and admitting patients
Considerazioni relative alla protezione ambientale da immissione di polveri da cementifici
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On the design of thermal breathing devices for liquid storage tanks
No full textThe dynamic behaviour of an atmospheric liquid storage tank upon sudden change of meteorological conditions is analysed with the aim of establishing criteria for the safe and effective design of thermal breathing devices. A simulation model is presented based on a lumped-parameter multiple-zone representation of the tank. Simplified design criteria based on reasonable and conservative approximations of the governing equations are derived. Application of the simulation procedure and of design criteria is exemplified. Results are discussed and critically compared with prescriptions of existing codes
Luigi Volpicelli pedagogista della vita
No full textIl testo propone un'interpretazione del pensiero di uno dei maggiori pedagogisti del Novecento italiano alla luce delle influenze esercitate sul suo pensiero dalle istanze vitalistiche ed esistenziali presenti nella cultura filosofica italiana. Luigi Volpicelli è stato senz'altro uno degli studiosi più originali nel panorama della pedagogia italiana contemporanea, giungendo ad acquisire rinomanza anche al di là dei confini nazionali, grazie ad una visione della pedagogia attenta alle suggestioni provenienti dal dibattito europeo coevo, in particolare il vitalismo e le filosofie dell'azione, oltre al problematicismo italiano. In campo storiografico la sua posizione ha proposto una concezione equilibrata della storia dell'educazione, attenta sia alla storia delle idee sia a quella delle istituzioni, in questo anticipando vedute che si sono diffuse in anni più recenti
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