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Dyspnea in divers at 49.5 ATA: mechanical,not chemical in origin
CO2 carbon dioxide human Dyspnea exercise respiratory
2009/7/20
Pulmonary function was studied in six divers living in a hyperbaric chamber at a pressure nearly fifty times normal (49.5 atmospheres absolute (ATA), equivalent to 488 m or 1600 ft seawater (fsw)). As...
Chemical safety of U.S. Navy Fleet soda lime
CO2 carbon dioxide rebreather absorbent Sodasorb Sofnolime indicator dye ammonia Contamination
2009/6/8
Contamination was suspected of U.S. Navy Fleet soda lime (High Performance Sodasorb) when an ammonia-like odor was reported during its use in August 1992. This material contained indicator dye and was...
Chemical oxidants acidify solitary complex (SC) neurons in the rat
Chloramines Animal rat Carbon Dioxide
2009/6/4
Breathing high levels of oxygen (i.e. hyperoxia) causes hyperventilation and unstable breathing in normal and carotid-deafferented animals (1,2). Prolonged exposure to hyperoxia can disrupt central ne...
Air-activated chemical warming devices: effects of oxygen and pressure
Atmospheric Pressure Atmosphere Exposure Chambers chemistry Spontaneous Combustion Hyperbaric Oxygenation
2009/6/2
Air-activated chemical warming devices use an exothermic chemical reaction of rapidly oxidizing iron to generate heat for therapeutic purposes. Placing these products in a hyperbaric oxygen environmen...
BEHAVIORAL AND CHEMICAL ASPECTS OF BLACK BAND DISEASE OF CORALS: AN IN SITU FIELD AND LABORATORY STUDY
Scientific Diving coral reef Black band disease cyanobacterium
2009/5/6
Black band disease of corals consists of a dense microbial community dominated by the cyanobacterium ("bluegreen alga") Phormidium corallvticum. The community, which is present as a line or band, mig...
New sensor detects gaseous chemical weapon surrogates in 45 seconds
Acoustic Sensing chemical weapon
2007/3/21
March 19, 2007，RICHLAND, Wash. – Using lasers and tuning forks, researchers at Pacific Northwest National Laboratory have developed a chemical weapon agent sensing technique that promises to meet or e...