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.
Page 3 of 5. 1. Background 1.1 A dynamic purchasing system (dps) is a new way for a contracting authority to purchase certain goods, works or services. 1.2 The procedure is set out in Article 33 of the Public Sector Directive 1 and Article 15 of the Utilities Directive 2.The provisions are in similar terms.ynamic Purchasing Systems: OGC Guidance January 2006 Page 2 of 5 OGC Guidance on Dynamic Purchasing Systems Dynamic Purchasing Systems in the new Public Contracts and Utilities Contracts Regulations Contents 1. Background 2.