Search

L’articolo descrive uno studio sperimentale volto a testare l’efficacia dello strumento Identicars, un catalogo di immagini di automobili e di parti di esse ideato per aiutare i testimoni di omissione di soccorso stradale nel compito di riconoscimento dell’auto fuggita senza prestare soccorso. L’ipotesi di partenza dei ricercatori è quella per cui tale strumento dovrebbe aiutare i testimoni a fornire una descrizione più dettagliata e più accurata dell’auto che si è data alla fuga. Nell’articolo verrà dimostrata la potenziale utilità dello strumento Identicars attraverso l’esposizione dei risultati di un esperimento condotto presso l’Alma Mater Studiorum Università di Bologna, i cui risultati mostrano un’accuratezza maggiore del resoconto testimoniale per i soggetti che hanno utilizzato Identicars rispetto ai soggetti che hanno fornito un resoconto testimoniale con il metodo tradizionale di assunzione delle informazioni. L’article décrit une étude pilote conçue pour vérifier l’efficacité du système Identicars. Cet outil est un catalogue d’images de voitures et de pièces de voiture créé pour aider les témoins de délits de fuite à reconnaître la voiture en question. L’hypothèse des chercheurs est que cet outil devrait effectivement aider les témoins à fournir des descriptions plus détaillées et précises. Les auteurs veulent démontrer l’utilité potentielle du système Identicars par le biais des résultats obtenus par une expérience réalisée à l’Université de Bologne (Italie). Ces résultats montrent une plus grande qualité du témoignage de la part des personnes qui ont employé l’outil Identicars par rapport à celles qui ont témoigné en employant les méthodes traditionnelles pour obtenir les informations. The article describes a pilot study designed to test the effectiveness of the Identicars system. This tool is a catalogue of images of cars and car parts created to help the witnesses of hit-and-run driving accidents to recognise the car in question. The researcher’s initial concept is that such a tool should help witnesses to provide more detailed and accurate descriptions. The authors will demonstrate the potential usefulness of the Identicars tool through the results achieved by an experiment carried out at the University of Bologna. These results show a greater accuracy of identification by those witnesses who used the Identicars tool in comparison to those who gave evidence using the traditional method for obtaining the information.

The control of vibrations for systems with second-order linear dynamics is a cornerstone for several engineering application, as structural vibration control in civil and aerospace structures. In such systems, sometimes only a few eigenvalues must be mitigated in situations as resonances, flutter, and another dangerous vibratory phenomenon. The use of active vibration control is an attractive alternative due to its flexibility and the availability of general design approaches. In the case of partial eigenvalue assignment, no spillover can be achieved, that is, only a small spectrum or eigenstructure partition is reallocated, with the remaining being unperturbed. In this paper, the no spillover property of Brauer’s spectrum perturbation theorem is applied to compute a dense influence matrix structure of actuation, reassigning then the dangerous target eigenvalues and kept the remaining of the spectrum unchanged. A Sylvester equation must be solved using only the part of the spectrum to be reassigned. The results are tested in a benchmark taken from the specialized literature, and thus confirming its effectiveness.

Background. SARS-CoV-2 is a newly emerged virus that has spread rapidly, exhibiting tremendous morbidity and mortality. Some potential pharmaceutical targets have been identified but are still lacking proper validation. Case Presentation. We describe the case of a young, immunosuppressed and critically ill patient with previous Influenza B infection, requiring extracorporeal membrane oxygenation, which was then followed, in the succeeding months, by SARS-CoV-2 infection complicated by severe adult respiratory distress syndrome. Her clinical course exhibited complications, including pulmonary embolism, acute kidney injury, pneumothorax, pneumomediastinum, multiple cardiac arrests, and eventually death. Conclusion. Coinfection with other respiratory pathogens and opportunistic infections are possible. [ABSTRACT FROM AUTHOR]