Aviat Space Envir Md
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Aviat Space Envir Md · Oct 2005
Carboxyhemoglobin and blood cyanide concentrations in relation to aviation accidents.
It is important in aviation accident investigations to determine if a fire occurred during flight or after the crash and to establish the source(s) of the toxic gases. ⋯ The presence of COHb and CN in elevated concentrations in the blood of victims found by autopsy to have died on impact would indicate an in-flight fire. In the absence of fire and CN-, the elevated COHb concentrations would suggest an exhaust leak, particularly at COHb > 30%. The findings of this study also suggest that, in addition to COHb, CN plays a detrimental role in fire-associated aviation accident fatalities.
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Aviat Space Envir Md · Oct 2005
Motion sickness susceptibility fluctuates through the menstrual cycle.
Surveys of transportation by sea, land, and air indicate that women are more susceptible to motion sickness than men, showing higher incidences of vomiting and reporting more symptoms such as nausea. The cause of this greater motion sickness susceptibility in women is unknown. One suggestion is that it is due to the functioning of the female endocrine system, but there are contradictions between existing studies. ⋯ There was a trend indicating that motion sickness susceptibility was maximal at day 5 'menstruation', decreasing through days 12 and 19 to a minimum at day 26 'pre-menstrual', to a small but significant extent. However, it is unlikely that this can fully account for the greater susceptibility in women since the magnitude of fluctuation in susceptibility across the cycle is only around one-third of the overall difference between male and female susceptibility.