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Comparison between the essential oil and supercritical Carbon Dioxide extraction of Mentha Piperita L.cultivated in Iran
Mentha piperita Labiatae SFE Menthol Menthone
2010/1/6
The chemical compositions of the essential oils and the volatile concentrate of Mentha piperita L. (Labiatae) obtained by supercritical carbon dioxide extraction (SFE) at 35°C and 100 atm were compare...
Roles of nitrogen,oxygen,and carbon dioxide in compressed-air narcosis
human nitrogen carbon dioxide oxygen compressed-air narcosis
2009/7/20
In an attempt to determine the roles of nitrogen, oxygen, and carbon dioxide in compressed-air narcosis, the effects on performance (mental function and manual dexterity) of adding CO2 in various conc...
Effect of prolonged exposure to elevated carbon monoxide and carbon dioxide levels on red blood cell parameters during submarine patrols
human drug red cell
2009/7/17
Effect of prolonged exposure to elevated carbon monoxide and carbon dioxide levels on red blood cell parameters during submarine patrols.
Carbon dioxide and vitamin D effects on calcium metabolism in nuclear submariners:a review
submarine CO2 carbon dioxide human chamber
2009/7/17
Studies in nuclear submariners show that calcium excretion falls rapidly to 50% of pre-patrol levels during long patrols and remains low for many weeks after return to fresh air. This has previously b...
Carbon dioxide response and breath-hold times in underwater hockey players
CO2 carbon dioxide breath hold dive
2009/7/14
Competitive underwater hockey play demands frequent and prolonged breath-hold dives. To see whether participants were physiologically adapted to breath-hold diving we studied the ventilatory response ...
Lung Carbon Dioxide Elimination Corralates With Physiologic Dead Space Volume During Mechanical Ventilatory Support
Lung carbon dioxide elimination CPAP Dead space
2009/6/29
Increased mean airway pressure (Paw) predisposes to increased alveolar dead space volume and, hence, physiologic dead space volume (V{Dphys}. This is the result of overdistending alveoli, converting Z...
Hyperbaric oxygen therapy in the treatment of carbon dioxide gas embolism
Arteriovenous Shunt Carbon Dioxide Embolism human
2009/6/4
Patients with end stage renal disease requiring hemodialysis pose multiple clinical problems, among them provision of a trouble free permanent venous access. The atriovenous shunt, made of polytetrafl...
Metabolic production of carbon dioxide in simulated sea states: relevance for hyperbaric escape systems
Hyperbaric Oxygenation HYPERBARIC CHAMBERS Chamber Carbon Dioxide/metabolism carbon dioxide divers heart rate sea state SCRUBBERS CANISTERS absorbent equipment design metabolic
2009/6/2
Hyperbaric Escape Systems (HES) are used when saturation diving bells have to be evacuated and divers transported to safety. The aim of the present investigation was to determine the levels of metabol...
Oxygen-Enhanced Breath-hold Diving, Phase I: Hyperventilation and Carbon Dioxide Elimination
breath-hold Hyperventilation carbon dioxide loss of consciousness
2009/5/6
Hyperventilation (HV) is commonly used to extend breath-hold time by eliminating carbon dioxide to delay the hypercapnic stimulus to end breath-hold. The chief hazard is that loss of consciousness ma...
The effect of experimentally induced carbon dioxide pneumoperitoneum on intra-abdominal and intra-esophageal pH
Carbon dioxide pH pneumoperitoneum esophagus abdomen
2010/1/11
Aim: An experimental study was performed to evaluate the effect of CO2 pneumoperitoneum on intra-abdominal (IA) and intra-esophageal (IE) pH. Material and methods: The study included 18 Wistar rats. I...