The Six Sigma initiative at Mount Sinai Medical Center.

Lean Six Sigma, in various forms, has been used widely in many Fortune 500 companies. Motorola, General Electric, Sony, American Express, and Bechtel all use Six Sigma to improve quality and performance. While the impact of this methodology has been documented extensively by the press in manufacturing and transactional settings, less evidence is available regarding its utility in health care environments.

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The sample (up to 5 mg) is destroyed by using a wet process in a glass flask of the Kjeldahl type. Aluminium cobalt, tin and iron are determined spectrophotometrically. The following reactions are used: complexation of aluminium by Alizarin Red S and calcium cobalt(II) by tiron tin(IV) by phenylfluorone, iron(III) by tiron.

Structure and synthesis of a lipid-containing bacteriophage. Purification, chemical composition, and partial sequences of the structural proteins.

The four structural proteins of the lipid-containing bacteriophage PM2 have been purified by dissociation of the virus in the presence of acetic acid followed by a combination of gel filtration and ion-exchange chromatography in the presence of sodium dodecylsulfate and guanidine hydrochloride. Amino acid analyses of each of the proteins were performed and correlated with the properties and functions of the proteins. Protein I has the highest polarity and is the only water-soluble protein.