Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Robert B. Reger"'
Autor:
Wm. Keith C. Morgan, Robert B. Reger
Publikováno v:
Chest. 118:1639-1644
Most studies of the rate of decline in ventilatory capacity in normal subjects take into account a relatively restricted number of factors, such as age, smoking, and dust exposure. There is increasing evidence to suggest that such a limited approach
Publikováno v:
Journal of Clinical Toxicology.
The US coal mine dust (“CMD”) standard is among the lowest in the world. Lowering exposures to 2 mg/m3 markedly reduced prevalence of coal workers pneumoconiosis (“CWP”). Lowering the standard to 1 mg/m3 is proposed because of a recent increa
Publikováno v:
Journal of Clinical Toxicology.
Implementation of the coal mine dust (“CMD”) interim standard of 3.0 milligrams per cubic meter (“mg/m 3 ”) in 1970 was reduced to 2.0 mg/m3 in 1972 and produced a steady decline in dust levels and prevalence of coal workers pneumoconiosis (
Publikováno v:
Chest. 102:251-260
Scanty irregular opacities are not uncommonly observed on the chest roentgenogram in the absence of interstitial fibrosis of the lungs. In such circumstances the irregular opacities, when present, tend to be relatively scanty and seldom, if ever, exc
Publikováno v:
Journal of Occupational & Environmental Medicine. 40:12
Autor:
Joseph Costello, Dennis Groce, James A. Merchant, Kenneth Bridbord, Robert B. Reger, John F. Gamble, Marilyn Hutchison, Carl E. Ortmeyer, William Jones, William L. Wagner
Publikováno v:
Environmental Health Perspectives
An area of major concern in considering increased coal production and utilization is the health and safety of increased numbers of workers who mine, process, or utilize coal. Hazards related to mining activities in the past have been especially serio
Autor:
Martin L. Silbiger, E. Nicholas Sargent, Robert B. Reger, Richard G. Ames, James A. Merchant, Phillip P. Polakoff, Philip Whittlesey
Publikováno v:
Chest. 81:290-295
A reading trial was conducted as part of the 1978 Bay Area Asbestos Screening Project to evaluate the utility of adding oblique-view roentgenograms to standard posterior-anterior (PA) views. Chest films from a sample of 555 workers with histories of
Publikováno v:
Thorax. 26:585-590
The residual volume and total lung capacity of 1,455 working Pennsylvania coal miners were determined as part of a larger epidemiological study. The age of the subjects varied between 18 and 65 with a mean of 48·7 years. The total lung capacity of t
Publikováno v:
Thorax. 25:544-549
The results obtained from two radiological methods of determining total lung capacity (TLC) (Kovach9s parabo oid and Barnhard9s ellipsoid) were compared with those obtained with the body plethysmograph. Determinations of TLC were made in four groups