11 results for “General Electric”
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Medical study · Medical research · 1980
Asbestos fibers in the general population
…pleura. Counts did not differ significantly by sex or smoking. The authors concluded that substantial asbestos, mostly too small to form asbestos bodies, is present in the average urban lung and probably reflects general environmental contamination.
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Medical study · Medical research · 1982
Asbestos fibers and pleural plaques in a general autopsy population
It has been claimed that symmetric lower zone pleural or diaphargmatic plaques are markers of asbestos exposure both in asbestos workers and the general population. In this study, total pulmonary asbestos burden was analyzed for 29…
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Medical study · Medical research · 1983
Nonasbestos pulmonary mineral fibers in the general population
…sex, or smoking. It is concluded that (1) substantial numbers of nonasbestos fibers are present in lungs of the general population. Most of these fibers are short and of low aspect ratio; and (2) by phase…
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Medical study · Medical research · 1986
Fiber size and number in workers exposed to processed chrysotile asbestos, chrysotile miners, and the general population
…chrysotile ore, 20 long-term chrysotile miners, and 20 members of the general population (controls). Significantly greater amounts of both chrysotile and tremolite were found in processed-ore workers and miners than in controls. On average…
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Medical study · Medical research · 1986
Malignant mesothelioma caused by childhood exposure to long-fiber low aspect ratio tremolite
…his later work. The authors dissolved lung tissue and examined the recovered fibers by electron microscope. His chrysotile level was within the general population's range. His tremolite and actinolite level was slightly elevated, but far…
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Medical study · Medical research · 1984
Fiber size and number in amphibole asbestos-induced mesothelioma
…of crocidolite fibers, 0.2 X 10(6)/g; these values represent an approximately 250-fold increase over those found in the general population. Crocidolite fibers were significantly narrower than amosite fibers (mean width, 0.13…
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Medical study · Medical research · 1983
Current issues in the pathologic and mineralogic diagnosis of asbestos-induced disease
…as the main problem. The author wrote that a million chrysotile fibers per gram of dry lung fit general-population background levels. A million amosite or crocidolite fibers per gram almost certainly indicated substantial occupational exposure…
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Medical study · Medical research · 1985
Malignant mesothelioma in British Columbia in 1982
…construction or insulation trades. In lung tissue from six men, chrysotile was within the general-population range, but amosite and crocidolite were raised about 300-fold on average; two men also had raised noncommercial amphiboles such…
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Medical study · Medical research · 1985
Mineral particles, mineral fibers, and lung cancer
…smoking history, and general occupational class. The lung cancer patients had an average of 525 +/- 369 X 10(6) exogenous mineral particles and 17.4 +/- 19.6 X 10(6) exogenous mineral fibers/g dry lung…
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Medical study · Medical research · 1982
Fiber counting and analysis in the diagnosis of asbestos-related disease
…large numbers. Numbers of asbestos bodies markedly underestimate total numbers of fibers present in lung. In patients from the general population, the mean number of asbestos fibers is about 1 X 10(6)/g dry lung;…
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Medical study · Medical research · 1984
Long fibre asbestos in a chrysotile textile worker
…worker and a less pronounced but probably significant shift for the tremolite group. They noted general agreement that long fibres are associated with disease. On that basis they concluded that their findings offered an explanation for…