Results 211 to 220 of about 15,195 (301)

Epigastric electrical impedance for the quantitative determination of the gastric acidity

open access: closedPhysiological Measurement, 2008
Electrical impedance measurements have been used by scientists since the 1980s to investigate the gastric function. In this work, these measurements were carried out using the epigastrograph, a device generating alternating current of 32 kHz and injecting it in the gastric area of the human body with surface electrodes, located around the abdominal ...
N M Spyrou
exaly   +4 more sources

A COMPACT APPARATUS FOR THE CLINICAL DETERMINATION OF GASTRIC ACIDITY

open access: closedJAMA - Journal of the American Medical Association, 1925
A rapid method for the determination of gastric acidity by means of test papers was recently described by us. 1 Since this description, we have devised a compact indicator set 2 for carrying out the method in clinical work. The apparatus consists of a small wooden case which contains ( a ) six vials of standard buffer solutions ranging in p H from 3 ...
Daniel N. Silverman
exaly   +3 more sources

Determination of gastric acidity by measurement of azure a in the blood serum

open access: closedThe American Journal of Digestive Diseases, 1961
A tubeless gastric analysis procedure based on the azure A level in blood serum and the experimental results in three groups of individuals have been described.
H L, SEGAL, R P, PLOSSCOWE
openaire   +3 more sources

Limitations of the Use of Indicators for Determination of Acidity in the Gastric Lumina

open access: closedAmerican Journal of Physiology-Legacy Content, 1956
Hydrogen ion indicators were injected intravenously in dogs with an actively secreting exteriorized gastric flap. The flap was frozen, sectioned and observed microscopically at –18°C. Only neutral red and Prussian blue were seen microscopically in the lumina and then only when the secretory rate was depressed to essentially zero.
T D, WHITE, R H, SWIGART, W S, REHM
openaire   +3 more sources

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