Noun [edit]. viola â(plural violas). ( 1 music) A stringed instrument of the violin family, somewhat larger than a violin, played under the chin, and having a deeper tone. ( 2 music) An organ stop having a similar tone. ( 3 music) A 10-string steel-string acoustic guitar, used in Brazilian folk music.oun [edit]. viola â(plural violas). ( 1 music) A stringed instrument of the violin family, somewhat larger than a violin, played under the chin, and having a deeper tone. ( 2 music) An organ stop having a similar tone. ( 3 music) A 10-string steel-string acoustic guitar, used in Brazilian folk music.
Dipalmitoylphosphatidylcholine (DPPtdCho) is a phospholipid (and a lecithin) consisting of two palmitic acids attached of a phosphatidylcholine head-group and is the major constituent of many pulmonary surfactants. It is zwitterionic by virtue of having a negative charge on the phosphate group and a positive charge on the quaternary ammonium group.
Pyruvate dehydrogenase complex (PDC) deficiency (PDCD) is one of the most common neurodegenerative disorders associated with abnormal mitochondrial metabolism.The citric acid cycle is a major biochemical process that derives energy from carbohydrates.ll children are born with some residual enzyme activity, because a complete deficiency of pyruvate dehydrogenase complex is incompatible with life. Infants with 15% or less pyruvate dehydrogenase complex activity normally do not survive the newborn period.