[Automation of renographic studies using a microcomputer].

The paper is concerned with the results of the automation of renogram storage and processing. The computer system 15 VUMS-28 (on the basis of the ELEKTRONIKA-60 computer) fitted out with storage on the magnetic tape (KML) AZII-4, two 3-channel renographs (NP-356 and NP-307), manufactured in Hungary, and a plotter N-306 were interfaced by means of the KAMAK apparatus. The REN-1 program in the QUASIC language ensuring simultaneous storage and processing of renograms from two renographs was developed.

Shifts in the distribution of rural population in the non-Chernozem zone of the RSFSR.

"Rural population change within the Non-Chernozem zone of the RSFRS [Russian Soviet Federated Socialist Republic] is examined over the period 1959-79 at several levels of analysis: the Non-Chernozem zone as a whole, its major economic regions, individual oblasts, individual rayons and individual farms and rural places. The overriding tendency at all levels of analysis has been the increasing spatial concentration of rural population." The authors observe that "this concentration assumes a variety of forms, from the concentration of rural population in the suburban zones of large cities and the immediate surroundings of rayon seats to a decline in the number of rural places (from 180,000 in 1959 to 118,000 in 1979) and the growth of local centers against a general background of rural population decline.