The gene pool of the Belgorod oblast population: II. “Family name portraits” in groups of districts with different degrees of subdivision and the role of migrations in their formation
AbstractThe frequencies and spectra of surnames have been analyzed in groups of raions (districts) of the Belgorod oblast (region) with different degrees of population subdivision. The “family name portraits” of districts with low (0.00003 < < f*r < 0.00022, 
$$\overline {f_r^ * } $$
 = 0.00015) and moderate (0.00023 < f*r < 0.00042, 
$$\overline {f_r^ * } $$
 = 0.00029) inbreeding levels are similar both to each other and to the “family name portrait” of the Belgorod oblast as a whole. Districts with high subdivision levels (0.00043 < f*r < 0.00125, 
$$\overline {f_r^ * } $$
 = 0.00072) had very distinctive surname spectra and the highest surname frequencies. Intense immigration to the Belgorod oblast significantly affects its population genetic structure, decreasing the population subdivision.
Use of family names to study dynamic factors of population structure
The authors analyze data on family names for two small populations in the Arkhangelsk district of Russia over the period 1792 to 1972 in order to examine the dynamics of population change over time genetic distance and the incidence of migration (SUMMARY IN ENG) (ANNOTATION)
Is the Benussi Effect a Kinetic Depth Effect?
Rapid, successive presentations of an eccentric circle pattern and its mirror-image elicited apparent depth and, as has been previously demonstrated for the Benussi effect, there was an increase in apparent depth with an increase in circle eccentricity. Taken together, these data were interpreted as contravening Wallach, Adams, and Weisz's account of the Benussi effect as an instance of the kinetic depth effect.