The term subarachnoid hemorrhage (SAH) refers to extravasation of blood into the subarachnoid space between the pial and arachnoid membranes. SAH constitutes half of all spontaneous atraumatic intracranial hemorrhages; the other half consists of bleeding that occurs within the brain parenchyma.
Definitions and images to illustrate geological terms, links to images and website articles. Assimilation is that process of magmatic differentiation whereby ascending magmas evolve chemically by recruiting easily melted or dissolved components (fusibles) from the walls of their conduits. Under the agency of heat and magmatic fluids, ascending magmas pick up volatiles, silica, trace elements, and occassionally fragments of wall rock.
Assimilation is the process by which individuals or groups adopt (either voluntarily or forcedly) the language and cultural norms and values of another group. In most cases, it is the minority group that is expected to conform to the normative practices and ideals associated with the majority group.ssimilation is a problematic term. It can refer to the experiences of a group or of its individual members. Originating in the natural sciences, it identified a process through which one organism absorbs another; the latter then ceases to exist in recognizable form.