BACKGROUND While a relation between pain and intracapsular pressure in the hip joint has previously been reported by some of the present authors, a newly published study including patients with severe osteoarthritis was not able to confirm this finding. This stimulated us to investigate the role of short rotators in relation to intracapsular pressure and pain in osteoarthritic hips. METHODS W...

In the process of coring in a high in-situ stress environment, rock core is damaged due to release, and discing prominent manifestation this damage. Pressure-preserved has no direct effect on stress, its influence release related drilling fluid pressure. Yet pressure was not considered most former numerical simulation studies discing. paper, discrete element method software PFC3D used conduct p...

In this study, the energy release rates in a centrally perforated star-shaped disk, which was made of a polymeric material, under internal pressure and thermal loads, were determined. The deformations of the disk were constrained by a circular steel ring enclosing the disk. Two constitutive models, namely, Hookean model and Ogden model, were used to model the constitutive behavior of the materi...

The present study analyzes the heat release and combustion characteristics of diesel, pure biodiesel (B100) obtained from Jatropha oil and its 80% blending with Ethanol (BD80E20) and Acetone (BD80AC20) as fuels in a single cylinder four stroke direct injection (DI) diesel engine. The analyses of experimental results indicate that the pressure of the in-cylinder gases rise early in case of B100,...

OBJECTIVE The role of airway pressure release ventilation in the management of early smoke inhalation injury has not been studied. We compared the effects of airway pressure release ventilation and conventional mechanical ventilation on oxygenation in a porcine model of acute respiratory distress syndrome induced by wood smoke inhalation. DESIGN Prospective animal study. SETTING Government ...

Inhibition of the release of renin by vagal afferents from the heart and lungs was studied in 14 dogs with their aortic nerves cut and their carotid sinuses vascularly isolated. The release of renin from one kidney was calculated from the venous-arterial difference in plasma renin activity (radioimmunoassay) and the renal blood flow (electromagnetic flowmeter). Renin release was determined befo...

Increased vasomotor discharge induced by bleeding caused renal release of renin in anesthetized dogs whether or not there was measurable change in either arterial pressure or total renal blood flow. Release of renin was prevented by ganglion blockade or local anesthesia of the renal nerves. Hemorrhage-induced release of renin occurred more consistently in dogs fed a low-sodium diet than in thos...

The effect of extracorporeal shock waves on hemoglobin release from red blood cells was recently found to be minimized under minute static excess pressure. It was proposed that this can be explained by shock wave-gas bubble interaction. We substantiated this further by two experiments by applying shock waves to suspended human RBC in a lithotripter at a lower frequency (1 pulse every 5 s) and b...

it has been shown that nitric oxide is synthesized in the central nervous system as well as in vascular endothelial cells. recently, it was reported that nitric oxide was involved in central cardiovascular regulation, baroreflex modulation, and involved in a reciprocal release with excitatory amino acids in the nucleus tractus solitarii of rats. the purpose of the present study was to investiga...

BACKGROUND & AIMS Splanchnic vasodilation is an essential disturbance in portal hypertension. Increased systemic sympathetic nerve activity is well known, but potential corresponding vascular desensitization is incompletely characterized. Release of splanchnic sympathetic neurotransmitters noradrenaline (NA) and co-transmitter neuropeptide Y (NPY) remains to be elucidated. Finally, the effects ...