[Temporal analysis of calls of the psychiatric emergency medical aid team]. / Vremennoi analiz vyzovov psikhiatricheskoi brigady skoroi meditsinskoi pomoshchi.

6075 calls for the psychiatric emergency ambulance unit were reviewed. An analysis of the hourly and 24-hour number of calls showed the existence of 24-hour, lunar and seasonal rhythms in the frequency of calls. The correlation between clinical symptoms and the number of calls points to aggravations of diseases. The accumulated data indicate that there is a connection between the dynamics of the psychopathological processes and ecological factors which are determined by periodic fluctuation of gravitation fields.

Graded X-ray Optics for Synchrotron Radiation Applications.

Using X-ray diffractometry and spectral measurements, the structure and properties of graded X-ray optical elements have been examined. Experimental and theoretical data on X-ray supermirrors, which were prepared by the magnetron sputtering technique using precise thickness control, are reported. Measurements on graded aperiodic Si(1-x)Ge(x) single crystals, which were grown by the Czochralski technique, are also presented. The lattice parameter of such a crystal changes almost linearly with increasing Ge concentration. The measurements indicate that Si(1-x)Ge(x) crystals with concentrations up to 7 at.% Ge can be grown with a quality comparable to that of pure Si crystals.