One of the locations of renal artery atherosclerosis is at the orifice of the renal artery, therefore thestructure of this orifice was assessed in 6 normal, adult male dogs by light microscopy (LM) andtransmission electron microscopy (TEM). For the LM study, processed tissues were embedded in paraffinand sectioned serially into 6-μm thickness. Sections were stained with orcein. For the TEM stud...

Permanent cardiac pacing is a method of choice in the treatment of specific arrhythmias and conduction disturbances. Clinical studies show that cardiac performance diminished at the site of impulse spreading. It determines local hypotrophy below the position of the pacing lead (early electric activation) with hypertrophic changes in the opposite lying myocardium (late electric activation). It s...

Table 1-Effects of lsoproterenol and VIP on Histamine-induced Bronchoconstriction HISTT Subject HISTt HIST HISTt HIST+ISO (28 p.g) HISTt HIST+ISO (375 sg) HISTt HIST+ VIP (375 g) *Mean ± SE (n) from all controlhistamine challenges. tData calculated from Figure 1. First value is response to first histamine challenge and second value is response to second histamine challenge conducted 5 h later, ...

SUMMARY The instantaneous response of the left ventricle to loss or recoverv of effective atrial contraction was studied in 12 patients with valvular aortic stenosis by producing A-V dissociation by electrical pacing of the ventricles so that some ventricular contractions were preceded by an effective atrial contraction while others were not. A conventional hydraulic formula relatinig size of t...

This article considers the influence of orifice arrangement in a cover cylindrical resonator on impedance determined by Dean’s method. A with small height and low perforation degree is studied. geometry provides different non-uniformity sound field at backing depending cover, while number orifices does not change. It shown that, arrangements, values method high frequencies (3000 Hz more) differ...

The most commonly used flowmeter is the orifice meter. The orifice meter consists of two parts. As shown in Figure 1, they are the measurement orifice plate, which is installed in the process line, and the differential pressure transmitter, which measures the pressure developed across the orifice plate. There has been extensive research to determine the operating characteristics of orifice meters.

one of the locations of renal artery atherosclerosis is at the orifice of the renal artery, therefore thestructure of this orifice was assessed in 6 normal, adult male dogs by light microscopy (lm) andtransmission electron microscopy (tem). for the lm study, processed tissues were embedded in paraffinand sectioned serially into 6-μm thickness. sections were stained with orcein. for the tem stud...

PURPOSE Bladder cancer (BC) may involve the ureteral orifice, and the resection of the orifice has oncological and functional consequences such as development of upper tract urothelial carcinoma (UTUC), vesicoureteral reflux or ureteral stenosis. The aim of this study was to investigate the oncological and functional outcomes of the ureteral orifice resection in BC patients and determine the pr...

The Burkard 7-day spore trap with standard orifice is commonly used by researchers in sampling outdoor air. The alternate orifice is reported to have higher efficiency in collecting small airborne fungal spores; however, no previous studies compared Burkard samplers with different orifices. This study was conducted to study the effect of the alternate orifice on the concentration of airborne fu...