We report here a very rare case of pneumomediastinum due to spontaneous tracheal rupture with tracheobronchomalacia. The patient was a 74-year-old woman who had suffered nocturnal dyspnea due to productive cough for five days prior to admission and had been treated with corticosteroids for five years at another hospital after being diagnosed with bronchial asthma. Computed tomographic scanning ...

The preparation of monodisperse nanoparticles with uniform size, shape and composition has been intensively pursed because of their scientific and technological interests [1-4]. The major advantage of monodisperse particles may be attributed to the uniform properties of individual particles, which makes the property of whole particles strictly controllable. They have been widely used in industr...

Background Breathing rehabilitation techniques are designed to reduce symptoms, decrease disability, increase participation in physical and social activities, and improve the overall quality of life for individuals with chronic respiratory diseases. However, the role of these techniques remains unclear. This study examined the effects of pursed-lip breathing (PLB) on the respiratory function, a...

Multiple benefits of oxygen therapy for hypoxemic patients with chronic lung disease are well established. Steady flow oxygen therapy is inefficient, wasteful and has a high cost. The Oxymizer pendant improves efficiency of oxygen delivery compared with SF. However, the device requires that the patient inhale and exhale nasally to maximize its oxygen-saving properties. When patients do PLB they...

Abstract. We discussed the peculiarities of three structural projects. The El Ferdan swing bridge over Suez Canal, longest in world, required optimization weight and deflection, pursed with genetic algorithms. Museum Future Dubai, is supported by a single-layer steel gridshell following pseudo-toroidal double-curvature surface, which great number diagrid nodes, parametrically designed custom to...

General body warm-up is important for high performance in demonstrating motoric characteristics. Recently, respiratory muscle warm-up, which contributes to sports such as general has been a subject of interest scientists. The aim this study examine the effect different on parameters. Thirty volunteer girls aged 12-14 participated study. Three warm-ups, including placebo divided pursed-lip exerc...