Proposal for a Unit of Measurement for Sustainable Energy Planning: Energetic Population Equivalent, the EPe

Abstract The municipal energy plans are an essential tool for measuring power and estimation of future energy needs, the article proposes a new method for measuring according to other examples of standards that are already in use and normed by the Italian legislation

Different ways to repair the mitral valve with artificial chordae: a systematic review

Myxomatous mitral regurgitation (type II Carpentier's functional classification) affects about 1-2% of the population. This represents a very common indication for valve surgery resulting in a low percentage of repairs compared to replacement which is actually performed. In the last decades, several methods for mitral valve repair have been developed, to make the surgical feasibility easier, improve the long-term follow-up thus avoiding the need for reoperations. A very interesting method is represented by the combination of various valve repair techniques, depending on the involvement of the anterior, posterior, or both leaflets, and the use of PTFE artificial chordae tendineae when excessive chordal elongation or rupture due to myxomatous degeneration co-exists. The aim of this review is to summarize the evolution of these techniques from the beginning till now

Left ventricular postoperative false aneurysm following apical venting

We report a case of false aneurysm of the left ventricle occurring subsequently to the placing of a vent sump line through the apex during an aortic valve procedure; the diagnosis was made twelve months later during a routine echocardiographic examination. The lesion was successfully repaired. This case recommend the use of other routes of venting in order to reduce the incidence of such complications

Experimental multiparameter quantum metrology in adaptive regime

Relevant metrological scenarios involve the simultaneous estimation of multiple parameters. The fundamental ingredient to achieve quantum-enhanced performances is based on the use of appropriately tailored quantum probes. However, reaching the ultimate resolution allowed by physical laws requires non trivial estimation strategies both from a theoretical and a practical point of view. A crucial tool for this purpose is the application of adaptive learning techniques. Indeed, adaptive strategies provide a flexible approach to obtain optimal parameter-independent performances, and optimize convergence to the fundamental bounds with limited amount of resources. Here, we combine on the same platform quantum-enhanced multiparameter estimation attaining the corresponding quantum limit and adaptive techniques. We demonstrate the simultaneous estimation of three optical phases in a programmable integrated photonic circuit, in the limited resource regime. The obtained results show the possibility of successfully combining different fundamental methodologies towards transition to quantum sensors applications

Cardiogenic shock as a complication of acute mitral valve regurgitation following posteromedial papillary muscle infarction in the absence of coronary artery disease

A 48 year old man was transferred to our department with cardiogenic shock, pyrexia, a high white cell count and significant serum troponin T level. Clinical evaluation revealed severe mitral regurgitation secondary to a flail of both mitral valve leaflets. An emergency cardiac catheterisation did not reveal any significant coronary artery disease. Left ventricular angiogram and echocardiography demonstrated a good left ventricular function and massive mitral regurgitation. Blood cultures were negative for aerobics, anaerobics and fungi. The patient underwent emergency mitral valve replacement with a mechanical valve. Intraoperatively, the posteromedial papillary muscle was found to be ruptured. Histology of the papillary muscle revealed myocardial necrosis with no signs of infection. Cultures obtained from a mitral valve specimen were negative. The patient's recovery was uneventful and he was discharged on the 6th postoperative day

Traumatic aortic arch false aneurysm after blunt chest trauma in a motocross rider

This article details a case report of a traumatic aortic arch false aneurysm after blunt chest trauma. Thoracic aorta false aneurysms are a rare and life-threatening complication of aortic surgery, infection, genetic disorders and trauma

Antegrade selective cerebral perfusion in patients with "bovine aortic arch": is it easier?

[No abstract available

Cella a combustibile, la tecnologia per il futuro?

Nell’ambito di un programma di ricerca triennale sui fabbisogni energetici degli ospedali, si è simulata l’operatività di un impianto ibrido a fuel cells all’acido fosforico in integrazione dei sistemi impiantistici convenzionali. Le analisi energetiche condotte in riferimento ad un ospedale del nord Italia hanno evidenziato notevolissime riduzioni dei fabbisogni di energia primaria ed un sostanziale abbattimento delle emissioni inquinanti

The Collective Self Organized Housing Experience In Italy

The paper is based on the first results of the research “Proficient - SME network business model for collective self-organized processes in the construction and retrofit of energy-efficient residential districts” (EU 7th FP 2012-2016) and illustrates the potentialities of the collecting self-organized (CSO) housing model to fulfil the goals of the 20-20-20 EU energy policies by means of some case studies realized in Italy