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Cavernous hemangioma, also called cavernous angioma, venous malformation, or cavernoma, [1] [2] is a type of venous malformation due to endothelial dysmorphogenesis from a lesion which is present at birth. A cavernoma in the brain is called a cerebral cavernous malformation or CCM.
This page was last edited on 21 April 2009, at 05:29 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...
As the sand concentration of a flow increases, grain-to-grain collisions within the turbid suspension create dispersive pressures that become important in hindering further settling of grains. As a consequence, a slightly different set of sedimentary structures develops in turbidites deposited by high-density turbidity currents.
Ironsand, also known as iron-sand or iron sand, is a type of sand with heavy concentrations of iron. It is typically dark grey or blackish in color. It is typically dark grey or blackish in color. It is composed mainly of magnetite , Fe 3 O 4 , and also contains small amounts of titanium, silica, manganese, calcium and vanadium.
A millimeter-sized sea animal could hold clues to the evolution of the human nervous system. While placozoans are simple animals only as big as a grain of sand, the blobs have unique cells that ...
Such current may propagate into silica-rich quartzose sand, mixed soil, clay, or other sediments, rapidly vaporizing and melting resistant materials within such a common dissipation regime. [3] This results in the formation of generally hollow and/or vesicular, branching assemblages of glassy tubes, crusts, and clumped masses. [ 4 ]
Unlike the worms living in the sand in the dunes of Arrakis, the fictional planet at the center of the “Dune” universe, this worm is incredibly small, but it does bear a remarkable resemblance ...
The gnome sea pen was named after the gnome, which researchers described as an “elemental spirit presiding over the ground.” The name refers to the way the sea pen appears to stand on a rock.