Procter & Gamble (United Kingdom)
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Protein synthesis in the rat liver after fracture of the femur.
Get PDFModerate to severe trauma is accompanied by two characteristic responses in plasma protein concentration, namely an increase in levels of acute phase reactants and a fall in albumin (Cuthbertson & Tompsett, 1935; Oweb, 1967)
Reactions of quinones with aromatic ethers.
Get PDFThe reactions between quinones and aromatic compounds in the presence of acids are surveyed; and a summary of the methods used for preparing triphenylenes is outlined. Mono- and di-arylquinones have been prepared by the arylation of benzoquinones with diazotised 3,4-dimethoxyaniline (Meerwein reaction). The structures of the arylquinones are determined spectroscopically and by conversion to known compounds. The aluminium chloride-catalysed reaction between benzoquinones and either veratrole or 3',4'-dimethoxyphenyl-benzoquinones gives derivatives of triphenylene-1,4:5,8-diquinone. 2-(3',4'-dimethoxyphenyl)-3-arylbenzoquinones have been cyclised in the presence of Lewis or protic acids to triphenylene-1,4-quinones. The reaction between concentrated hydrochloric acid and either 2,3-di(3',4'-dimethoxyphenyl)-benzoquinone or 5,6-dichloro-2,3-di(3',4'-dimethoxyphenyl)-benzoquinone gives 5-chloro-substituted triphenylene-1,4-quinones. A new synthesis of 2-hydroxytriphenylenes is developed by treating veratrole with chlorobenzoquinones in aqueous sulphuric acid. An attempted reaction between veratrole and 1,4-naphthaquinone in the presence of aluminium chloride gave only products derived from 1,4-naphthaquinone, one of these is a new dinaphofuran derivative, viz. 8-hydroxydinaphtho-[1,2-b:2',1'-d]furan-5,6-quinone. The structures of all compounds have been determined by both physical and chemical techniques, and mechanisms have been suggested and dicussed for new reactions
Properties of a high-current discharge in alkali-metal-seeded rare gases.
Get PDFThis thesis is an account of a detailed investigation of the properties of a recently-discovered gas discharge - a discharge that operates at a few volts or tens of volts, and which carries a current of the order of amps through a mixture consisting of a hot, atmospheric-pressure rare gas (the "diluent") to which a small amount of alkali metal vapour has been added as an easily-ionised "seed". It is shown that the establishment of the discharge under study is brought about by the breakdown of the gas, which occurs at a breakdown voltage that depends mainly on the electrode spacing, seed pressure, and choice of diluent gas. The discharge itself is shown to consist of two main regions, namely, a constricted, cylindrical positive column that extends from the anode to within a short distance of the cathode, and a thin, glowing sheath that covers the entire cathode surface; the two regions are separated by a dark space. The positive column is shown to expand as current increases, while the value of its electric field is shown to depend mainly on the discharge current, seed pressure, and choice of diluent gas, and hardly at all on the gas temperature or choice of seed metal. The cathode fall is shown to depend mainly on the discharge current, seed pressure, and choice of seed metal. The breakdown of the gas, the positive column of the discharge, and the cathode regions of the discharge are discussed in successive chapters
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