There is no consensus concerning the best system of humidification during long-term noninvasive mechanical ventilation (NIMV). In a technical pilot randomised crossover 12-month study, 16 patients with stable chronic hypercapnic respiratory failure received either heated humidification or heat and moisture exchanger. Compliance with long-term NIMV, airway symptoms, side-effects and number of se...

Roller bearings are important elements of high performance mechanical systems, as they support the rotating parts and they reduce the contact friction. Therefore, it is necessary to continuously monitor their performance using non-destructive diagnostic methods. These methods interrogate data signals acquired during the machines operation. In this paper, the method of Hilbert – Huang transform ...

background :delayed ::::union::::, non::::union::::, and mechanical failure is still problems encountered in limb salvage surgery (lss) using extracorporeal irradiation (eci). this study aimed to determine whether bone marrow mesenchymal stem cells (msc) and recombinant human bone morphogenetic protein-2 (rhbmp-2) improve host-graft ::::union:::: after osteotomy and also increase its mechanical...

background & aim: pain is the main stressful factor in patients hospitalized in intensive care units(icu). non-pharmacological methods for pain relief are preferred by icu patients due to lack of considerable side effects. the present research aims to determine the effect of tens on pain intensity followed by surgery in patients hospitalized in intensive care units. setting of the study was bes...

In their prospective multicenter randomized controlled trial, Su et al report that noninvasive mechanical ventilation (NIV) used in all patients after extubation did not reduce re-intubation rate, when compared to standard oxygen therapy.1 Nevertheless, we believe that the concept of “preventive” NIV requires not only early application of NIV but also careful selection of patients who are high ...