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The lifetime of fluorescent lamps is mainly limited by the loss of emitter material which is released from the thermionic cathode due to sputtering and evaporation. To predict the lifetime of these lamps it is desirable to understand and quantify the transport of barium in the cathode region. For this purpose, the transport of barium atoms and ions in(More)
104 chronically ill patients of an average age of 82.7 years were accommodated on geriatric wards of hospitals totaling 152 times during vacation, stay at a health resort, or illness of their attending relatives. On average, they stayed in hospital for 3 to 4 weeks. Main diagnoses were cerebrovascular circulatory disturbances or condition after insultus,(More)
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