Semiconduction in Kaolin

Kaolin dust concentrations and pneumoconiosis at a kaolin mine.

Kaolin is removed from underground seams in the mining area to a processing area, where it is sliced, dried, and pulverised to make the finished product. A study was undertaken to determine the dust concentrations in various work areas and to assess the prevalence of radiographic and pulmonary function abnormalities in 65 workers at a Georgia kaolin mine. Respirable dust concentrations were hig...

Pneumoconiosis of kaolin workers.

Kaolin-activated thromboelastography in echocardiographically normal cats.

OBJECTIVE To determine reference values for kaolin-activated thromboelastography in echocardiographically normal cats. ANIMALS 30 healthy cats without evidence of cardiomyopathy on echocardiographic examination. PROCEDURES All cats underwent echocardiographic examination, the findings of which were reviewed by a board-certified cardiologist. Cats that struggled (n = 10) received mild sedati...

Prevalence of Pneumoconiosis in Cornish Kaolin Workers.

In 1961, 553 Cornish china clay workers had been exposed to kaolin dust for periods exceeding five years, and evidence of kaolinosis was seen in 48 (9 %). No kaolinosis was found in men who had been exposed for less than five years. Workers in the more heavily exposed jobs of milling, bagging, and loading showed a prevalence rising from 6% in those with between five and 15 years' exposure to 23...

Serum Changes following Kaolin Injections

1. The intoxication produced by the intravenous injection of inert substances such as kaolin is due to protein split products derived from the serum proteins. 2. The kaolin acts as an adsorbing medium for the serum antiferment, bringing about an alteration in the ferment-antiferment balance. 3. The intoxication is accompanied by an increase in serum protease, and of proteoses. 4. The serum lipa...