Patients with COPD may need supplemental oxygen during air travel to avoid development of severe hypoxemia. The current study evaluated whether the hypoxia-altitude simulation test (HAST), in which patients breathe 15.1% oxygen simulating aircraft conditions, can be used to establish the optimal dose of supplemental oxygen. Also, the various types of oxygen-delivery equipment allowed for air travel were compared.
A trinuclear redox-active complex with an unprecedented ene-triyne backbone has been isolated and structurally characterized. The mono-oxidized mixed-valent species exhibits electronic delocalization necessary for molecular circuitry.
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