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Acidosis is an increased acidity in the blood and other body tissue (i.e. an increased hydrogen ion concentration). If not further qualified, it usually refers to acidity of the blood plasma. Acidosis is said to occur when arterial pH falls below 7.35 (except in the fetus - see below), while its counterpart (alkalosis) occurs at a pH over 7.45. Arterial…
Ab initio quantum chemistry methods are computational chemistry methods based on quantum chemistry. The term ab initio was first used in quantum chemistry by Robert Parr and coworkers, including David Craig in a semiempirical study on the excited states of benzene. The background is described by Parr In its modern meaning ('from first principles of quantum mechanics') the term was…