The neutron yield per proton from thick targets of lead and lithium irradiated with 100 MeV protons has been measured and calculated. The water bath method was used to measure the neutron production, and a Faraday cup for the the beam current determination. Measured yields are 0.343 + 0.021 for lead and 0.123 2 0.007 for lithium. Corresponding yields calculated with the nucleon-meson transport ...

A 79-year-old man was admitted to hospital from his nursing home for treatment of pneumonia, but died 7 days after admission. Legionella pneumonia was diagnosed after isolation of Legionella pneumophila serogroup-5 from sputum culture. The environment of the nursing home was investigated; only water specimens from the 24-hour bath were positive by culture for Legionella pneumophila serogroup-5....

ROGER ROLLS, with photographs by CLIVE QUINNELL, The hospital of the nation. The story ofspa medicine and the Mineral Water Hospital ofBath, Bath, Bird Publications, 1988, 4to, pp. x, 181, illus., £18.50. In a relatively slim text-but one quite sumptuously illustrated, with both old prints and modern photographs-Roger Rolls has attempted to unite at least three separate and substantial books: a...

We present a model of the dynamical transition of atomic displacements in proteins. Increased mean-square displacement at higher temperatures is caused by the softening of the force constant for atomic/molecular displacements by electrostatic and van der Waals forces from the protein-water thermal bath. Displacement softening passes through a nonergodic dynamical transition when the relaxation ...