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Natural calcium is a mixture of five stable isotopes (40 Ca, 42 Ca, 43 Ca, 44 Ca, and 46 Ca) and one isotope with a half-life so long that it is for all practical purposes stable (48 Ca, with a half-life of about 4.3 × 10 19 years). Calcium is the first (lightest) element to have six naturally occurring isotopes. [14]
The Ca 2+ concentration of the vacuole may reach millimolar levels. The most striking use of Ca 2+ ions as a structural element in algae occurs in the marine coccolithophores, which use Ca 2+ to form the calcium carbonate plates, with which they are covered. Calcium is needed to form the pectin in the middle lamella of newly formed cells.
Meaning c̅ (c with an overbar) with (from Latin cum) means with C: cytosine cervical vertebrae: C1: atlas – first cervical vertebra of the spine C2: axis – second cervical vertebra of the spine CA: carcinoma cancer: Ca: calcium carcinoma cancer: CAA: coronary artery aneurysm: c/b: complicated by: CABG: coronary artery bypass graft ...
CA-, a road designation for highways part of the Central American highway network; CA, the official designation for heavy cruiser in the U.S. Navy from 1920–1945 'CA': Tactical Naval Warfare in the Pacific 1941-43, a 1973 board wargame that simulates World War II naval combat; Ca Mè Mallorquí, a dog breed native to Spain; centiare = 1 ...
The meaning is distinct from "unanimously"; "nem. con." simply means that nobody voted against. Thus there may have been abstentions from the vote. [citation needed] no. numero (singular), nos. (plural) "number" Used as a common abbreviation for "number" in all forms of writing. op. cit. opere citato "(in) the work cited"
CA) is a discrete model of computation studied in automata theory. Cellular automata are also called cellular spaces , tessellation automata , homogeneous structures , cellular structures , tessellation structures , and iterative arrays . [ 2 ]
Candidatus (Ca.) - a taxon proposed from incomplete information, such as uncultured bacteria known from metagenomics; ex errore – made in error; incertae sedis – of uncertain placement; nomen alternativum (nom. alt.; plural: nomina alternativa) – an alternative name, as for certain plant families
Also acid ionization constant or acidity constant. A quantitative measure of the strength of an acid in solution expressed as an equilibrium constant for a chemical dissociation reaction in the context of acid-base reactions. It is often given as its base-10 cologarithm, p K a. acid–base extraction A chemical reaction in which chemical species are separated from other acids and bases. acid ...