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Neurologic effects of repeated exposures to high-pressure heliox atmospheres
decompression animal heliox Neurologic effect
2009/7/20
Neurologic effects of repeated exposures to high-pressure heliox atmospheres.
Physiology of man during a 10-day dry heliox saturation dive (SEATOPIA) to 7 ata.i.cardiovascular and thermoregulatory functions
human dive functions
2009/7/20
Physiology of man during a 10-day dry heliox saturation dive (SEATOPIA) to 7 ata.i.cardiovascular and thermoregulatory functions.
Physiology of man during a 10-day dry heliox saturation dive (SEATOPIA) to 7 ATA. II.Urinary water,electrolytes,ADH,and aldosterone
human urine blood hydration
2009/7/20
Physiology of man during a 10-day dry heliox saturation dive (SEATOPIA) to 7 ATA. II.Urinary water,electrolytes,ADH,and aldosterone.
Longitudinal study of performance after deep compressions with heliox and He-N2-O2
human heliox trimix
2009/7/20
This study concerns three hyperbaric experiments. During SAGITTAIRE iv, compression to 610 msw was accomplished in 11 days with an atmosphere of helium-oxygen. For the two CORAZ experiments, compressi...
Environmental and body temperatures of 52 divers in hyperbaric heliox
human temperature Circadian Rhythm heliox Atmospheric Environment
2009/7/16
Rectal and skin temperatures were recorded over periods as long as 24 h on 52 divers at depths as great as 300 m. Chamber temperature and body temperatures are correlated with depth, and the correlati...
Heat loss and tolerance time during cold exposure in heliox atmosphere at 16 ATA
human cold thermal heliox Protective Clothing
2009/7/16
Four different types of protective clothing and three different methods of heat conservation protection were evaluated during an exposure to 4 degrees C cold in a heliox atmosphere at 150 msw. The div...
Central nervous system reactions during heliox and trimix dives to 31 ATA
human trimix heliox Central nervous system
2009/7/16
Two groups of divers were compressed to 300 msw (984 fsw) with heliox (n = 3) and trimix (n = 3). Neuropsychological/neurological testing was performed repeatedly during the compression and on reachin...
Central nervous system reactions during heliox and trimix dives to 51 ATA, DEEP EX 81
nitrogen human heliox trimix
2009/7/15
Two groups of divers were compressed to 500 msw with heliox (n = 3) and trimix (n = 3). They were followed with repeated neuropsychological and neurological tests during compression, at stable interme...
Two groups of divers (Group A and B) were compressed to 500 msw with trimix (n = 3) and heliox (n = 3). After 4 d at saturation depth Group A had a gas change to heliox. Both groups were followed with...
Heliox treatment for spinal decompression sickness following air dives
spinal decompression sickness air Heliox
2009/7/10
Enforced delay in treatment of spinal decompression sickness following scuba diving can result in paraplegia. Poor response from initial recompression to 18 m presents the clinician with a difficult m...
Rat brain catecholamine release at 1,10,20,and 100 ATA heliox,nitrox,and trimix
helium heliox nitrogen narcosis animal rat nitrox chamber catecholamine
2009/7/10
The pattern of neurotransmitter release in the rat caudate and hypothalamus was studied following exposure to pressure in combination with various gas mixtures. The caudate was selected for its contro...
HPNS effects among 18 divers during compression to 360 msw on heliox
cognitive high pressure neurologic syndrome compression heliox
2009/7/9
Heliox compression deeper than 16 ATA can lead to EEG changes associated with confusion and somnolence. In man the symptoms termed the high pressure neurologic syndrome (HPNS) can also include increas...
Influence of heliox,oxygen,and N2O-O2 breathing on N2 bubbles in adipose tissue
oxygen heliox decompression animal rat nitrous oxide adipose tissue bubble growth nitrogen elimination
2009/7/9
Bubbles in rat adipose tissue were studied at 1 bar after decompression from an exposure to air at 3.3 bars (absolute) for 4 h. During air breathing the bubbles grew throughout the observation period....
Psychophysiologic changes in sleep during simulated 200-m heliox saturation dives
helium heliox saturation Psychophysiologic sleep
2009/7/8
The standard polysomnogram and questionnaire were measured from 4 subjects during 2 simulated 200-m heliox saturation dives. These measurements were performed for 1 precompression night, bottom nights...
Effect of air,heliox,and oxygen breathing on air bubbles in aqueous tissues in the rat
helium heliox retinal eye decompression diffusion decompression sickness animal rat air
2009/6/12
Our purpose was to examine the behavior of air bubbles in three non-lipid tissues (skeletal muscle, tendon, and the anterior chamber of the eye) during breathing of air, helium-oxygen (heliox, 80:20),...