Ileus of the greater omentum

Age standardized mortality from coronary heart disease was found to be higher in the German speaking parts of Switzerland than in the French speaking parts. Mortality from other diseases of the heart does not show a contrary gradient. The same pattern was confirmed among a cohort of Swiss physicians, observed over a 18-year period. Differences in smoking habits cannot explain the differential mortality rates.     

Effect of thermal treatment on the properties of staphylococcal enterotoxin type A

Thermal treatment of staphylococcus enterotoxin of type A at the stage of the cultural fluid failed to influence the character of the enterotoxin purification under the given conditions. In both cases the amount of the removed nitrogen components constituted about 97%. The purified preparations of the staphylococcus enterotoxin of type A differed from one another by the data of electrophoresis and ultracentrifugation and also by the antigenic composition. Under the action of thermal treatment staphylococcus enterotoxin of type A changed its antigenic properties and lost some of its biological activity.     

The transmission and bistability of a nonlinear quasioptical resonator in ESR-conditions in ruby

Due to rapid progress of the nonlinear optics it has become real to observe and use the phenomenon of optics bistability in such passive structure as a Fabry-Perot resonator filled (completely or partially) with a substance having nonlinear adsorbtion and refraction. The problem of the optic bistability of such resonance structures were discussed in [1,2].