(n.) An aeriform fluid; -- a term used at first by chemists as synonymous with air, but since restricted to fluids supposed to be permanently elastic, as oxygen, hydrogen, etc., in distinction from vapors, as steam, which become liquid on a reduction of temperature. In present usage, since all of the supposed permanent gases have been liquified by cold and pressure, the term has resumed nearly its original signification, and is applied to any substance in the elastic or aeriform state.
(n.) A complex mixture of gases, of which the most important constituents are marsh gas, olefiant gas, and hydrogen, artificially produced by the destructive distillation of gas coal, or sometimes of peat, wood, oil, resin, etc. It gives a brilliant light when burned, and is the common gas used for illuminating purposes.
(n.) Laughing gas.
(n.) Any irrespirable aeriform fluid.
Example Sentences:
(1) Carbon dioxide (CO2) levels, volumes, and temperatures of expired gas were measured from the tracheal and esophageal tubes.
(2) Steady-state values of cell, glucose, and cellulase concentration oxygen tension, and outlet gas oxygen partial pressure were recorded.
(3) Blood samples were analysed by mass spectroscopy and gas chromatography.
(4) Optimum rates of acetylene reduction in short-term assays occurred at 20% O2 (0.2 atm (1 atm = 101.325 kPa] in the gas phase.
(5) Glycosyl ceramide concentration was determined by gas-liquid chromatography of the trimethylsilyl ethers of the methyl glycosides.
(6) Early recognition is facilitated by monitoring of arterial blood gas levels for hypoxemia.
(7) "There is … a risk that the political, trade, and gas frictions with Russia could lead to strong deterioration in economic relations between the two countries, with a significant drop in Ukraine's exports to and imports from Russia.
(8) He said Germany was Russia’s most important economic partner, and pointed out that 35% of German gas originated in Russia.
(9) Ether extracts were analyzed by gas chromatography-mass spectrometry (GC-MS) and various chlorinated and non-chlorinated compounds were detected, e.g.
(10) Blood gas variables produced from a computed in vivo oxygen dissociation curve, PaeO2, P95 and C(a-x)O2, were introduced in the University Hospital of Wales in 1986.
(11) It is a specific clinical picture with extensive soft tissue gas and swelling of the forearm.
(12) A neodymium YAG (Nd:YAG) laser was evaluated in a dog ulcer model used in the same manner as is recommended for bleeding patients (power 55 W, divergence angle 4 degrees, with CO2 gas-jet assistance).
(13) The flow of a specified concentration of test gas exits from the mixing board, enters a distributing tube, and is then distributed equally to 12 chamber tubes housing one mouse each.
(14) The corresponding hydrides, mono-n-butyltin hydride, di-n-butyltin hydride, tri-n-butyltin hydride, monophenyltin hydride, diphenyltin hydride triphenyltin hydride, are detected by electron-capture gas chromatography after clean-up by silica gel column chromatography.
(15) Airway closure (CV), functional residual capacity (FRC) and the distribution of inspired gas (nitrogen washout delay percentage, NWOD %) and arterial oxygen tension (PaO2) was measured by standard electrodes in eight extremely obese patients before and after weight loss (mean weights 142 and 94 kg, respectively) following intestinal shunt operation.
(16) They were like some great show, the gas squeezing up from the depths of the oil well to be consumed in flame against the intense black horizon, like some great dragon.
(17) The existence of 5alpha-androstane-3alpha,17beta-diol in the androstanediol fraction could be demonstrated by gas chromatography and mass spectrometry (GC-MS).
(18) A pilot study was undertaken to determine the prevalence of gas in the puerperal endometrial cavity and to determine whether this finding has any relationship to the mode of delivery or to the development of puerperal endometritis.
(19) Inner Ear Decompression Sickness (IEDCS)--manifested by tinnitus, vertigo, nausea, vomiting, and hearing loss--is usually associated with deep air or mixed gas dives, and accompanied by other CNS symptoms of decompression sickness (DCS).
(20) Subjects underwent measurement of lung volumes, arterial blood gas analysis and an incremental bicycle exercise test.
Gasometry
Definition:
(n.) The art or practice of measuring gases; also, the science which treats of the nature and properties of these elastic fluids.
Example Sentences:
(1) Arterial pressure and blood gasometry were periodically determined to avoid masking results.
(2) A radiography of the thorax, arterial gasometry, an electrocardiogram and a pulmonary perfusion scintigraphy were performed in each patient.
(3) A study of blood gasometry at rest and after exercise was carried out on 98 subjects: 49 healthy, 31 cases with "small airway disease" and 18 cases of clinically nondecompensated obstructive lung disease.
(4) To this end, in addition to anamnesis and the macroscopic aspect of the suctioned blood, quantification of existing ischaemia by cavernous gasometry is quite important.
(5) We performed a functional respiratory examination which consisted of arterial gasometry, spirometry, diffusion capacity to CO2, alveolo-arterial gradient of O2 and pulmonary volumes to 8 patients with cirrhosis diagnosed by clinical history, laboratory exams, abdominal ultrasound and histology.
(6) Arterial gasometry (PaO2 and PaCO2) proved the efficacy of the method, the major risk remaining, in the opinion of the authors, the possibility of excessive pressure which may be avoided by strict supervision.
(7) Babies were evaluated during the pregnancy by measurement of fetal heart rate and ultrasonography, and after the delivery by measurement of weight and Apgar scores, and, in some cases, by arterial gasometry.
(8) Following 12 months of treatment the patient is able to carry out everyday activities and arterial gasometry breathing ambient air is PaO2 77 mmHg and PaCO2 43 mmHg.
(9) We found no correlation between the intensity of ventricular and supraventricular extrasystoles and clinical parameters as assessed by echocardiography, spirometry and gasometry.
(10) The results obtained after treating 13 patients with low flow priapism diagnosed by cavernous gasometry, penile ecodoppler and cavernosography are explained.
(11) PFM, arterial gasometry, physical examination and dyspnea evaluation were performed on all of them.
(12) The comparative study of diagnostic usual clinical and paraclinical elements (radiographies, E.C.G., gasometries and scintigraphies) confirmed, in 22 patients, the value of phlebography.
(13) Plasma Na, K, Ca and Cl levels and the capillary gasometry did not change during the trials.
(14) Catalase activity of rheumatoid synovial fluid measured by a gasometry was higher than that of osteoarthritic fluids, suggesting a possible origin of the catalase activity from synovial fluid leukocytes.
(15) We collected and analyzed the reports of reference values for gasometry in Mexico City (2240 m above sea level and a mean barometric pressure of 585 Torr) and other places in the country.
(16) Ten patients under general anaesthesia were subjected to non-invasive haemodynamic monitoring, together with arterial gasometry and capnography.
(17) Blood cell countings and blood gasometry were normal.
(18) A cranial implant was developed to facilitate mass spectrometric gasometry in cerebral tissue of conscious primates.
(19) On the other hand, the average values in Mexico are similar to those found in North Americans who have a mean PACO2 of 33.1 Torr at 2131 m of altitude, a mean PACO2 of 30.7 at 2371 m and a mean PaCO2 of 31 Torr at 2238 m. Normal values for gasometry in Mexico are scarce and some of the existing ones are erroneous probably due to lack of adequate calibrations and to poor quality control.
(20) Arterial gasometry showed hypoxaemia and increase of alveolo-arterial gradient of oxygen in all.