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The causes,mechanisms and prevention of the high pressure nervous syndrome
high pressure nervous syndrome carbon dioxide human animal mice
2009/7/20
The causes,mechanisms and prevention of the high pressure nervous syndrome
A theoretical method is derived for computation of the interactin of pressure and a weak anesthetic such as nitrogen or other narcotic gases in a two-dimensional material so as to prevent signs and sy...
The direction of apparent movement during transient pressure vertigo
ear alternobaric vertigo position
2009/7/20
Pressure vertigo or alternobaric vertigo is the type of vertigo normally associated with relative overpressure in the middle ear. As with other types of vertigo, it should occur only if there is unequ...
Xe133 elimination from human fat during negative-and positive-pressure breathing
human Xe133 elimination pressure breathing Adipose Tissue respiration work of breathing
2009/7/20
The elimination of Xe133 from a deposit in the subcutaneous adipose tissue outside the anterior tibial muscle was recorded by an external scintillation detector in 16 human subjects during normal brea...
Pressure-reduction limits for rats following steady-state exposures between 6 and 60 ATA
rat animal Decompression Sickness Pressure-reduction
2009/7/20
The role of pressure reduction in the formation and growth of bubbles is universally recognized and its significance in decompression theory has been accepted. Yet the allowable limits of pressure red...
Diving at diminished atmospheric pressure:air decompression tables for different altitudes
decompression human
2009/7/20
Fifty subjects performed 106 simulated dives at a final ambient pressure of 0.7 at (3000 m above sea level). One hundred and forty-three subjects performed 278 actual controlled dives at altitudes 900...
The effect of high pressure on the hemolysis of red blood cells
human red blood cell hemolysis dive
2009/7/20
Investigations into the effects of pressure on the hypotonic hemolysis of human erythrocytes show that pressures up to 130 atm (1700 psi) do not potentiate the hemolysis as has previously been suggest...
The effect of high pressure on the hemolysis of red blood cells
human red blood cell hemolysis dive
2009/7/20
Investigations into the effects of pressure on the hypotonic hemolysis of human erythrocytes show that pressures up to 130 atm (1700 psi) do not potentiate the hemolysis as has previously been suggest...
Alteration of high pressure nervous syndrome in rats by alteration of colonic temperature
nervous syndrome colonic temperature Animal
2009/7/20
The components of the high pressure nervous syndrome (HPNS) have been clearly described previously. Animal studies of HPNS, however, have been characterized by nonstandardized definitions of the vario...
A deep-diving system has been designed for use with colonies of small rodents at pressures up to 170 ATA. The system consists of a triple-envelope arrangement in which a modular habitat serves as the ...
Effects of increased O2-N2 pressure and breathing apparatus on respiratory function
human nitrox exercise breathing apparatus respiratory work of breathing
2009/7/20
The ventilatory response of four subjects was measured at rest and various intensities of exercise. Experiments were conducted in a dry pressure chamber (1) at 1 ATA and 4 ATA with the subjects breath...
Reversal of nitrogen narcosis in rats by helium pressure
nitrogen narcosis nitrogen helium animal rat
2009/7/20
Changes in operant behavior were obtained for rats breathing nitrogen, helium, and both gases combined. Exposure to 12.9 ATA of nitrogen (O2 maintained at normobaric value of 0.2 ATA) produced complet...
Hydrostatic pressure and mammalian cardiac-pacemaker function
animal mice Guinea Pig dog Rabbits Rat pacemaker cardiac
2009/7/20
Hydrostatic pressure and mammalian cardiac-pacemaker function.
The squid giant synapse, which permits intracellular electrical measurements in a single, excitatory synapse, was exposed to helium pressures up to 204 atm. By stimulating presynaptically and recordin...
Cerebellar and cerebral electroencephalogram during the high pressure nervous syndrome (HPNS) in rats
high pressure nervous syndrome electroencephalogram animal rat seizures
2009/7/20
Electroencephalographic activity of the frontal cortex, cerebellar vermis, and superior vestibular nucleus was recorded in awake rats during the high pressure nervous syndrome (HPNS) by means of perma...