Certain oxygen therapy masks operating with a venturi were found to possess audible noise levels sufficient to cause annoyance to the user. This was not true of all masks. However, it is recommended that this is a source of noise pollution that should be eliminated by the manufacturers of such devices.

Claudia Fortuna, Maria Elena Remoli, Caterina Rizzo, Eleonora Benedetti, Cristiano Fiorentini, Antonino Bella, Claudio Argentini, Francesca Farchi, Concetta Castilletti, Maria Rosaria Capobianchi, Lorenzo Zammarchi, Alessandro Bartoloni, Nadia Zanchetta, Maria Rita Gismondo, Luca Ceccherini Nelli, Giustina Vitale, Franco Baldelli, Pierlanfranco D’Agaro, Giuseppe Sodano, Giovanni Rezza, the Arbo...

The development of hydrodynamics metamaterials and transformation has enriched the methods fluid flow control. In proposed study, coupling rotation amplification functions, hydrodynamic rotating concentrators with tensorized viscosity are designed based on hydrodynamics. Through numerical simulations, we have demonstrated that can simultaneously magnify rotate velocity in creeping flows. centra...

BACKGROUND Postoperative continuous positive airway pressure (CPAP) can improve lung function. The aim of our study was to assess the efficacy of prophylactic CPAP on the Pa(O2)/FI(O2) ratio measured the day after surgery in patients undergoing lung resection surgery (LRS). METHODS The study population comprised 110 patients undergoing LRS. On arrival in the postanaesthesia care unit (PACU), ...

Objectives: A multi-site study evaluated the clinical performance of the Roche LightCycler PCR assay in the detection of methicillin-resistant Staphylococcus aureus (MRSA) in comparison to routine chromogenic agar culture method (BD BBL CHROMagar II). Two other variables were also investigated: to establish if screening the throat increases the detection rate of MRSA colonisation; and, to deter...