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At least 19 recordsLinked to original sources

Belorussia: the demographic transition and the settlement network in the 1980s.

Changes in the pattern of settlement in the Belorussian SSR, one of the constituent republics of the USSR, over the past 25 years is reviewed. The author suggests that Belorussia during this period has gone through the evolutionary process described in the demographic transition model. "The model outlines the changes in birth and death rates and their evolution over time in response to improved medical facilities, resulting in an increase of population of a region or country. At the same time the process of industrialization is accompanied by urbanization, which Belorussia has experienced in the period since 1959." A review of contemporary Soviet thinking on rural and urban settlement networks is included

Demography↗

Unusual heteromorphic bivalents in the common vole (Microtus arvalis) from Belorussia.

Electron microscopic analysis was carried out on the synaptonemal complexes of 10 male common voles (Microtus arvalis) caught in 1990 in Belorussia. In the early pachytene stage of spermatocytes of four males, a heteromorphic bivalent has been found in one of five large autosomes. In the central region of the bivalent one of the lateral elements is in the form of a D-loop, characteristic of insertion/deletion heterozygotes. However, high-resolution G-band staining of mitotic chromosomes from fibroblasts shows no significant differences in the G-band pattern between homologs.

Animals↗

[Morpho-ecological characteristics of thyroid diseases in various regions of Russia and Belorussia from surgical data].

Thyroid lesions were histologically studied on surgical material obtained in 1992-1996 in 12 regions of Russian Federation and Republic of Belarus. Various forms of thyroid pathology were considered with reference to local ecological situation. An increase of thyroid carcinoma incidence and particularly that of papillary carcinoma was observed in regions with radiation pollution (Chelyabinsk and Bryansk regions). A high degree of correlation exists between the incidence of various forms of thyroid pathology and radiation situation. This is also true for pollution of sewage and the presence of ferrous metallurgy factories. No correlation was found with the pollution of atmosphere.

Adenoma↗

[Polymorphism of the STR-locus of Y chromosomes in Eastern Slavs in three populations from Belorussia, Russia and the Ukraine].

Allelic polymorphism of five microsatellite loci of the human Y chromosome (DYS19, DYS390, DYS391, DYS392, and DYS393) was analyzed in samples of male populations from Ukraine, Russia, and Belarus (152 subjects in total). The allelic diversity indices (Dg) were determined for all loci; they varied from 0.23 to 0.72. The mean values of this parameter in the Ukrainian, Russian, and Belarussian populations were 0.45, 0.47, and 0.52, respectively. A total of 53 different haplotypes were found in 152 subjects from three populations. The most frequent haplotype was found in 14.5% of the subjects, whereas 35 haplotypes (23%) were each found in only one person. The haplotypic diversity index (Dhp) was 0.94. The genetic distances between the populations studied and some populations of Western and Central Europe were estimated. These data were used to construct a phylogram (tree) of genetic similarity between the populations, which demonstrated that the three Eastern Slavic populations are genetically close to one another and remote from Western European populations.

Base Sequence↗