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The capital, projecting on each side as it rises to support the abacus, joins the usually square abacus and the usually circular shaft of the column. The capital may be convex, as in the Doric order ; concave, as in the inverted bell of the Corinthian order ; or scrolling out, as in the Ionic order .
Biochemistry, or biological chemistry, is the study of chemical processes within and relating to living organisms. [1] A sub-discipline of both chemistry and biology, biochemistry may be divided into three fields: structural biology, enzymology, and metabolism. Over the last decades of the 20th century, biochemistry has become successful at ...
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The (oceanic) water column is a concept used in oceanography to describe the physical (temperature, salinity, light penetration) and chemical (pH, dissolved oxygen, nutrient salts) characteristics of seawater at different depths for a defined geographical point.
Gravity-flow, or drip, columns use head-pressure from a buffer-chase to push the sample through the gel filtration matrix. Sample is loaded into the top of an upright column and allowed to flow into the resin bed. The sample is then chased through the column by adding additional buffer or water to the top of the column.
The Ionic anta capital, in contrast to the regular column capitals, is highly decorated and generally includes bands of alternating lotuses and flame palmettes, and bands of eggs and darts and beads and reels patterns, in order to maintain continuity with the decorative frieze lining the top of the walls. This difference with the column ...
Elution principle of column chromatography. In analytical and organic chemistry, elution is the process of extracting one material from another by washing with a solvent: washing of loaded ion-exchange resins to remove captured ions, or eluting proteins or other biopolymers from a gel electrophoresis or chromatography column.
Its fixed-column width format is limited to 80 or 140 [4] columns, which was based on the width of the computer punch cards that were previously used to exchange the coordinates. [5] Through the years the file format has undergone many changes and revisions. The final update to the PDB file format was in November 2012 with version 3.30. [6]