In areas supporting a portion of a roadbed, retaining wall, or embankment, place backfill in uniform layers at most 8 in. deep (loose. measurement). Compact each layer to meet the density requirements of the roadbed, retaining. wall, embankment material, or as shown on the plans.
A hierarchy (in Greek: often used in Geographic studies á¼±ÎµÏÎ±ÏÏÎ¯Î±, it is derived from á¼±ÎµÏÏÏ -hieros, sacred, and á¼ÏÏÏ -arkho, rule) is a system of ranking and organizing things or people, where each element of the system (except for the top element) is subordinate to a single other element.ost evolutionary biologists assert a hierarchy extending from the level of the specimen (an individual living organism -- say, a single newt), to the species of which it is a member (perhaps the Eastern Newt), outward to further successive levels of genus, family, order, class, phylum, and kingdom.
Gestalt psychology is a school of thought that believes all objects and scenes can be observed in their simplest forms.Sometimes referred to as the 'Law of Simplicity,' the theory proposes that the whole of an object or scene is more important than its individual parts.implicity. The principle of simplicity is actually the basic principle behind Gestalt theory. Gestalt psychologists use the German word Pragnanz to describe it. Pragnanz means 'pithiness' in German, or concise and substantial.