Related Articles The effect of air leakage and heat exchange on the decay of entrapped air pocket slamming oscillations Phys. Fluids 23, 102107 (2011) Breaking internal wave groups: Mixing and momentum fluxes Phys. Fluids 23, 096602 (2011) Collisions of ageostrophic modons and formation of new types of coherent structures in rotating shallow water model Phys. Fluids 23, 061703 (2011) Fourth-ord...

Sir, Drs Greenough and Morley' conclude that very little ventilator pressure is transmitted to the oesophageal balloon in paralysed babies because of low lung compliance, and support this by showing lack of transmission to chest drains inserted in 2 babies with pneumothorax. Although this fits well with their other observations, they did not say whether there was any intrapleural air remaining ...

conclusions the results of the present study suggest that the presence of fusobacterium species in periodontal pockets is an important risk factor for halitosis. results in total, 26% (n = 13) and 8% (n = 4) samples were positive for fusobacterium species in the halitosis and control groups, respectively, with f. nucleatum present in the greatest proportion in both groups. halitophobia was sign...

background and aims. previous researches, conducted mostly on extracted teeth, have shown that efficacy of calculus removal decreases with increasing pocket depth, but there is still a lack of clinical studies concerning the correlation be-tween residual calculus and varying pocket depths. the objective of the present clinical study was to assess the efficiency of mechanical tooth depuration by...

: Air plombage is a surgical procedure that reduces the pleural space. In 1953, Dr. Chamberlain designed original “extraperiosteal plombage” to prevent complications after pulmonary segmentectomy for tuberculosis. This technique was developed formation of an intrapleural pocket dead space, and allow collapse cavity obliteration extrapleural Thus, this has been called as “(extraperiosteal) air p...

BACKGROUND We sought to determine the origin of free intraperitoneal air in this era of diminishing prevalence of peptic ulcer disease and imaging studies. In addition, we attempted to stratify the origin of free air by the size of the air collection. METHODS We queried our hospital database for "pneumoperitoneum" from 2005 to 2007 and for proven gastrointestinal perforation from 2000 to 2007...

OBJECTIVE The aim of this study was to evaluate the effectiveness of a radial firing tip of an Er,Cr:YSGG laser as an adjunct to a nonsurgical periodontal treatment. METHODS Twelve patients with chronic or aggressive periodontitis were treated by conventional periodontal treatment using ultrasonic devices and hand instruments and, additionally, in two quadrants with an Er,Cr:YSGG laser. A new...

BackgroundA sufficient supply of oxygen is crucial to avoid hypoxic cardiac arrest and brain damage within 30 min in completely-buried avalanche victims. Snow density influences levels hypoxia hypercapnia. The goal this study was investigate the effects hypercapnia on cerebral oxygenation (ScO2) humans breathing into an artificial air pocket.MethodsEach subject breathed a closed system (air-tig...

De-airing of the heart in open heart surgery is a necessary routine. Most of the air is evacuated from the heart before the aortic cross clamp is removed, but the de-airing may be continued even after declamping. One way to continue de-airing is to partially clamp the ascending aorta, proximally to the aortic cannula, in order to create a pocket for trapping residual air coming from the left ve...