منابع مشابه
Tooth Growth in Experimental Scurvy
1. The incisor teeth of guinea pigs have a constant rate of growth in health. 2. Deprivation of Vitamin C causes the teeth to cease growing. Readministration of the vitamin restores the growth. 3. Administration of small amounts of antiscorbutic substance results in rates of growth roughly proportional to dosage. 4. Under standard experimental conditions used in the testing of foodstuffs for an...
متن کاملStudies of Experimental Scurvy. Effect of Heat on the Antiscorbutic Properties of Some Milk Products.*
The recent work of Chick and Hume,’ Cohen and Mendel,2 Hess and Unger,z and Givens and Cohen4 gives full support to the earlie,r views of Hoist and Fr61ichK that scurvy is the result of a deficiency of some nutritive factor in the diet. If we understand by the term vitamine the chemically unknown substances of food origin essential for the normal performance of the function of animal life there...
متن کاملsimulation and experimental studies for prediction mineral scale formation in oil field during mixing of injection and formation water
abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...
Copper boilers and the occurrence of scurvy: an experimental approach.
IN 1757, JoHN TRAvis, a surgeon at Scarborough, discussed the causes of sea scurvy in a letter to Dr. John Fothergill.1 Travis, after commenting on the currently popular theories of the cause of scurvy observed, " . . . That bad provisions and moist foul air (which are generally esteemed the principal cause of it at sea) do not produce similar effects in our ships . . ." (p. 5), and indicated t...
متن کاملthe effectiveness of strategy-based instruction in teaching english as a second or foreign language: a meta-analysis of experimental studies
a large number of single research studies on the effects of strategy-based instruction (sbi) in teaching english as a foreign or second language has been conducted so far. however, the lack of a comprehensive meta-analysis targeting the effectiveness of english language sbi is observed. moreover, the findings of experimental studies regarding the context of the english language, proficiency lev...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1918
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)86565-6