in the present work, multidimensional modeling of open-cycle process of om355 engine was developed. calculations for computational mesh were carried out. the results of the model were validated by experimentally measured in-cylinder pressure and the good agreement between calculations and measurements approved the trustworthy of numerical code. results included pressure, temperature, emission a...

To examine the relationship between renal arteriolar dilatation and renin release, arterial perfusion pressure in anesthetized dogs was lowered in steps within and below the range of autoregulation of renal blood flow. Renin release, determined by both bioassay and radioimmunoassay, averaged 2.7 ± 0.9 (SE) /u,g/min at control pressure and increased to 20.0 ±4 .1 (SE) /zg/min at the lowest autor...

We studied the involvement of periventricular and hypothalamic angiotensinergic and cholinergic pathways in osmotically induced arginine vasopressin (AVP) release into the blood. In conscious Wistar rats, i.c.v. injections of 0.2, 0.3 and 0.6 M hyperosmolar saline (5 microl) resulted in concentration-dependent increases in AVP release (5.2 +/- 1.5, 10.6 +/- 2.2 and 18.0 +/- 2.2 pg/ml, respectiv...

background: myocardial dysfunction is one of the major complications in patients with sepsis where there is a relationship between the blood level of cytokines and the onset of myocardial depression. in many cases of sepsis, the presence of lipopolysaccharide (lps) has been established. lps binding protein (lbp) bound endotoxin is recognized by cd14/toll-like receptor-4 (tlr4) complexes in inna...

10.1152/ajpheart.00925. 2001.-Parathyroid hormone-related peptide (PTHrP) is expressed throughout the cardiovascular system and is able to dilate vessels. This study investigated whether mechanical forces generated by changes in regional perfusion influence PTHrP release from the coronary vascular bed. Experiments were performed in vitro on saline-perfused rat hearts or isolated coronary endoth...

Carpal tunnel syndrome is diagnosed by clinical symptoms, Tinel's sign, Phalen's test and electromyography. Carpal tunnel pressure measurement can also aid in the precise identification of excessive pressure sites that indicate locations for release. In this study, pressure measurements made during endoscopic carpal tunnel release at 5 points were significantly higher anywhere in the carpal tun...

I t has been demonstrated that an acute increase in right atria1 (RA) pressure and paroxysmal supraventricular tachycardias induce the release of atria1 natriuretic factor (ANF).*-4 In a previous study that allowed a selective or combined increase in heart rate and RA pressure by intracardiac pacing, we showed that acute increment in RA pressure is the determinant factor for ANF secretion.5 Hol...