Abstract MESSENGER observations suggest a magma ocean formed on proto-Mercury, during which evaporation of metals and outgassing C- H-bearing volatiles produced an early atmosphere. Atmospheric escape subsequently occurred by plasma heating, photoevaporation, Jeans escape, photoionization. To quantify atmospheric loss, we combine constraints the lifetime surficial melt, melt composition, compos...

The purpose of this study was to examine the effect of a concurrent record of chest pain episodes on later completeness and accuracy of verbal recall. Patients included 23 men and eight women, ages 43 to 76 years from a private cardiology practice who were randomized into experimental (n = 16) and control (n = 15) groups. Following an initial interview, experimental patients were instructed in ...

Earlier studies have observed that in moderately-loaded real-time database systems, using an Earliest Deadline policy to schedule tasks results in the fewest missed deadlines. When the real-time system is overloaded, however, an Earliest Deadline schedule performs worse than most other policies. This is due to Earliest Deadline giving the highest priority to transactions that are close to missi...