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Nerve and muscle compound action potentials were measured in the frog sciatic nerve-gastrocnemius muscle preparation in a hyperbaric helium-air environment. Helium pressure to 69 ATA induced a reversi...
Word-list intelligibility scores of unprocessed speech (mean of 4 subjects) were recorded in helium-oxygen atmospheres at stable pressures equivalent to 1600, 1400, 1200, 1000, 860, 690, 560, 392, and...
Anesthetized dogs received venous air infusions at 0.35 ml.kg-1.min-1. In 60% of a group of 15 dogs, venous bubbles spilled over into the arterial circulation and were detected with the ultrasound Dop...
Using an electrical stimulation of the reticulospinal tract at the level of the medial longitudinal fasciculus, the effects, and the neurochemical mechanisms of these effects, of a progressive increas...
Effects of inhalation of cold air or helium-oxygen mixture on lung resistance (RL) were studied in anesthetized and tracheotomized rabbits under normal ambient pressure and in human volunteers under n...
This study examined N2 and CO2 components of narcosis by comparing the effects of three levels of PETCO2 [low = 29 mmHg (SD = 4 mmHg), medium = 47 mmHg (SD = 1 mmHg), high = 57 mmHg (SD = 2 mmHg)] at ...
The neural mechanisms underlying the high pressure neurologic syndrome (HPNS), which limit man's safe advance to extreme diving depths, are still unclear. This work was aimed at a better understanding...
Four male divers were exposed to an environment of 26 and 31 atm abs He-O2 for 2 days. Urine was collected during the day (0700-1900 h) and at night (1900-0700 h) before (predive 1 atm abs air), durin...
Ultra-high hydrostatic pressures (to 13 kbar) were applied to acetylcholinesterase (AChE) in the presence and absence of 1 mM carbachol (a muscarinic agonist) by means of a piston-and-cylinder system ...
Criswell DW, Mehm WJ. Evaluation of Subcutaneous Oxygen Tensions at Varied Ambient Oxygen Pressures in Mice. J. Hyperbaric Med 1992; 7(2):81-87.
This study examined N2 and CO2 components of narcosis by comparing the effects of three levels of PETCO2 [low = 29 mmHg (SD = 4 mmHg), medium = 47 mmHg (SD = 1 mmHg), high = 57 mmHg (SD = 2 mmHg)] at ...
Ultra-high hydrostatic pressures (to 13 kbar) were applied to acetylcholinesterase (AChE) in the presence and absence of 1 mM carbachol (a muscarinic agonist) by means of a piston-and-cylinder system ...
In 5 subjects arterial and central venous nitrogen partial pressures (PN2) were measured after decompression from a chamber dive following a decompression schedule for scuba diving. The simulated dive...
To study the effects of inhaled oxygen pressures on N2 elimination, 72, 2-h washouts were performed in 6 subjects at oxygen pressures of 0.12, 0.2, 1.0, 2.0, and 2.5 atm abs using a closed circuit sys...

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