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Chapter
Dietary Requirements for Calcium
Normal, healthy adults must be assumed to be in a state of nutritional equilibrium — at least over a period of time. They must be taking in nitrogen, phosphorus, sodium and other elements at the same rate as t...
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Chapter and Conference Paper
The Prevalence of Urinary Stone Disease in Practising Vegetarians
It has been suggested that urinary stone-formation is essentially a disease of the more affluent or industrially-developed societies of the world (Andersen, 1973; Blacklock, 1976). Indeed, there is now good su...
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Chapter and Conference Paper
Risk Factors in stone-formation
It has been shown in previous communications (Robertson et al., 1969, 1971, 1976b; Robertson and Peacock, 1972) that the two main chemical factors which determine the risk of forming calcium oxalate-containing st...
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Article
The effect of 1α-hydroxycholecalciferol and hormone therapy on the calcium balance of post-menopausal osteoporosis
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Article
Calcium absorption in the elderly
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Chapter
Calcium Absorption in the Elderly
Calcium absorption can be measured in at least three ways — by the balance procedure, by intubation of the small intestine with a double or triple lumen tube and by the oral administration of radioactive calcium.
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Chapter
The Relation Between Androstenedione and Estrone Levels in Peri- and Post-menopausal Women
In a previous publication1 we have confirmed the observation of Grodin et al.2 that in a 3-day study about 3% of labelled androstenedione is converted to estrone in post-menopausal women, but we failed to show an...
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Chapter
Calcium Excretion and Hypercalciuria
Calcium is the principal constituent of most kidney stones, which seems to originate as a crystalline precipitate in a supersaturated medium. Calcium concentration in the urine therefore plays an important par...
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Article
Relationship between the Concentration of Caesium-137 in Milk and Man
CAESIUM-137, which is present in the fallout from nuclear explosions and is a potential hazard to man, is detectable in most components of the diet, but the chief sources are milk and dairy produce1,2. Models tha...
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Article
Measurement of calcium balance and bone turnover by new techniques
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Article
Kinetic Analysis of Plasma Radioactivity after Oral Ingestion of Radiocalcium
THE absorption of calcium from the gastro-intestinal tract is one of the chief regulators of calcium metabolism and is known to be disturbed in a variety of clinical disorders. Despite its importance, however,...
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Article
Bone Turnover Model based on a Continuously Expanding Exchangeable Calcium Pool
The rate of mineralization of new bone has been worked out on the basis of a continually expanding exchangeable calcium pool. A model is proposed in which the serum specific activity at any time is determined ...
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Article
The continuous counting of phosphorus-32 from transplanted rat tumours and the effects of radiosensitisers and radioprotective agents.
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Article
Units of Weight, Mass, and Force
WITH regard to Mr. Geoghegan's letter in your issue of April 7 (vol. xxxv. p. 534), my experience in teaching physics long ago led me to the same conclusions. For three years I have used in my classes in this ...
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Article
The Remarkable Sunsets
THE brilliant morning and evening glows have not yet left us. In connection with a letter of one of your correspondents of December 20, 1883, it may be interesting to add that the year 1783, which was characte...