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The Building and Construction Authority (BCA) is a statutory board under the Ministry of National Development of the Government of Singapore.It was established on 1 April 1999 through the merger of the Construction Industry Development Board and the Building Control Division of the former Public Works Department.
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Currently, it hosts about 450,000 books. [1] As of 2020, about 5000 people uses the library in daily basis. [1] The library has a secure section that is not accessible to the general public. This section stores rare books that are over 300 years old. [1] The earthquake of 2015 damaged some books in the library. [4]
Bicinchoninic acid (/ b aɪ s ɪ n k ɔː n ɪ n ɪ k /) or BCA is a weak acid composed of two carboxylated quinoline rings. It is an organic compound with the formula (C 9 H 5 NCO 2 H) 2. The molecule consists of a pair of quinoline rings, each bearing a carboxylic acid group. Its sodium salt forms a purple complex with cuprous ions. [1] [2] [3]
BCA protein assay in a 96 well plate. The bicinchoninic acid assay (BCA assay), also known as the Smith assay, after its inventor, Paul K. Smith at the Pierce Chemical Company, [1] now part of Thermo Fisher Scientific, is a biochemical assay for determining the total concentration of protein in a solution (0.5 μg/mL to 1.5 mg/mL), similar to Lowry protein assay, Bradford protein assay or ...
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A branched-chain amino acid (BCAA) is an amino acid having an aliphatic side-chain with a branch (a central carbon atom bound to three or more carbon atoms). Among the proteinogenic amino acids, there are three BCAAs: leucine, isoleucine, and valine. [1]