Chemical Constitution and Physiological Action
نویسندگان
چکیده
منابع مشابه
Antibacterial action and chemical constitution in long-chain aliphatic bases.
The success of sulphanilamide as a chemotherapeutic agent encourages the investigation of other classes of compound for antibacterial properties. The compounds 'described in this paper were the long-chain amines, amidines and guanidines which had been shown by King, Lourie & Yorke [1938] to possess remarkable trypanocidal powers. They were chosen because they had a proved biological action, and...
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Elementary sulphur and some of its inorganic compounds have long been of practical importance for the control of parasitic and saprophytic fungi, but the use of organic compounds of sulphur is of more recent origin. Compounds such as tetramethylthiuram disulphide and certain metallic salts of dithiocarbamic acids are now of commercial importance in this connexion (Tisdale & Flenner, 1942; Rober...
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1. It is shown that the NH(4) ion acts in cases of antagonism on the egg of Fundulus more like the K ion than the Na ion; this corresponds to the fact that in its general chemical behavior the NH(4) ion resembles the K ion more closely than the Na ion. 2. It is shown that the tolerance of sea urchin eggs towards the Li ion can be increased 500 per cent or more if at the same time a certain amou...
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An understanding of the calcification process requires exact. knowledge of the nature and variations of composition of the mineral phase of calcified tissues. Other investigators have continued the study, begun years ago, of the composition of the inorganic salts of bone, but a comprehensive study of the results of analysis of enamel and. dentin by modern methods has not been described. Crowell...
متن کاملThe Relationship between Chemical Constitution and Taste.
Some time ago the author had occasion to prepare a quantity of phenyl thio carbamide, and while placing it in a bottle the dust flew around in the air. Another occupant of the laboratory, Dr. C. R. Noller, complained of the bitter taste of the dust, but the author, who was much closer, observed no taste and so stated. He even tasted some of the crystals and assured Dr. Noller they were tasteles...
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ژورنال
عنوان ژورنال: Nature
سال: 1916
ISSN: 0028-0836,1476-4687
DOI: 10.1038/096675c0