derivatives of tartaric acid have produced data which will be of great value to future workers, while his modification of the "characteristic diagram"of Armstrong and Walker has simplified the co-ordination of rotatory dispersion phenomena... None - 《Nature》 被引量: 0发表: 1942年 VII.—Invest...
PAEKs can be produced in two ways: the nucleophilic route and the electrophilic route. The nucleophilic route has the formation of ether linkages in the polymerization step. The electrophilic route has the formation of carbonyl bridges during the polymerization step. They can be processed using all...
Visible hair, for example that seen on a human scalp, is actually the hair shaft, which is keratinized, hardened tissue that grows from the hair follicle. In particular, the hair shaft is composed largely of keratin, which is produced by keratinocytes....
Polyetherketoneketones are well-known in the art and can be prepared using any suitable polymerization technique, including the methods described in the following patents, each of which is incorporated herein by reference in its entirety for all purposes: U.S. Pat. Nos. 3,065,205; 3,441,538...
to safety and food inspections, and preventative screening. For example, detection of acetone and acetoacetate could indicate dangerous ketosis in diabetics. Substances like vanillin, diacetyl, and furfural, which are produced in the fermentation and ageing of beers and spirits, contribute significantly ...
The compounds of this invention possess at least one asymmetric center and thus can be produced as mixtures of stereoisomers or as individual enantiomers or diastereomers. The individual stereoisomers may be obtained by using an optically active starting material, by resolving a racemic or non-racemi...
Ketone bodies are molecules produced from fatty acids in the liver that act as energy carriers to peripheral tissues when glucose levels are low. Carbohydrate- and calorie-restricted diets, known to increase the levels of circulating ketone bodies, have attracted significant attention in recent years...
Ketone bodies are molecules produced from fatty acids in the liver that act as energy carriers to peripheral tissues when glucose levels are low. Carbohydrate- and calorie-restricted diets, known to increase the levels of circulating ketone bodies, have attracted significant attention in recent years...
Ketone bodies are molecules produced from fatty acids in the liver that act as energy carriers to peripheral tissues when glucose levels are low. Carbohydrate- and calorie-restricted diets, known to increase the levels of circulating ketone bodies, have attracted significant attention in recent years...