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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...
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.
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...
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 ...
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...
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...
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...
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...
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...

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