Within each such region, it was then subdivided into rural-urban strata (>50 000 inhabitants).
These broad categories might be subdivided and refined for within-country studies, so that specificity of an individual country could be taken into account.
They might have been individual houses subsequently subdivided, but the evidence points to terrace-type houses sharing the same roof.
They found that medium-term (generations 5-13) response was higher in subdivided than in unsubdivided populations.
This single objective method for designating dominance subdivided an obvious continuum of relative abundance for practical purposes.
Both the elite and vernacular categories may be further subdivided to reflect social divisions.
It is also distantly related to the opening movement insofar as it is subdivided into 12 equal periods.
While fields were enclosed, settlements were dispersed, farm organisation made geometric, the inside of tenant farmhouses were not rationalised or subdivided into individual spaces.
