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Narcosis results from breathing gases under elevated pressure, and may be classified by the principal gas involved. The noble gases, except helium and probably neon, [2] as well as nitrogen, oxygen and hydrogen cause a decrement in mental function, but their effect on psychomotor function (processes affecting the coordination of sensory or cognitive processes and motor activity) varies widely.
[17] [35] This is because nitrogen is five times more soluble in fat than in water, leading to greater amounts of total body dissolved nitrogen during time at pressure. Fat represents about 15–25 percent of a healthy adult's body, but stores about half of the total amount of nitrogen (about 1 litre) at normal pressures. [50]
Clinical trials have looked at whether tailoring asthma therapy based on eNO values is better than conventional care, in which therapy is gauged by symptoms and the results of lung function tests. [8] [9] [10] To date, the results in both adults and children have been modest and this technique can not be universally recommended.
Carbon dioxide narcosis, carbon dioxide retention leading to a reduction in the hypoxic drive; Hydrogen narcosis, an effect of diving deep with hydrogen; Nitrogen narcosis, an effect of diving deep with nitrogen; Unconsciousness induced by a narcotic drug; through anesthesia
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AllTrials (sometimes called All Trials or AllTrials.net) is a project advocating that clinical research adopt the principles of open research.The project summarizes itself as "All trials registered, all results reported": that is, all clinical trials should be listed in a clinical trials registry, and their results should always be shared as open data.
Bayer has won a trial in a lawsuit brought by a California man who said he developed cancer from exposure to its Roundup weedkiller, ending what had been a five-trial losing streak for the company ...
The main reason for adding helium to the breathing mix is to reduce the proportions of nitrogen and oxygen below those of air, to allow the gas mix to be breathed safely on deep dives. [1] A lower proportion of nitrogen is required to reduce nitrogen narcosis and other physiological effects of the