Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Christian J. Lambertsen"'
Publikováno v:
Journal of Applied Physiology. 100:869-879
Optimization of oxygen tolerance extension by intermittent exposure was studied in groups of 20 rats exposed to systematically varied patterns of alternating oxygen and normoxic breathing periods at 4.0, 2.0, and 1.5 ATA. Oxygen periods of 20, 60, an
Publikováno v:
Journal of Applied Physiology. 90:593-600
Cerebral gas embolism is a serious consequence of diving. It is associated with decompression sickness and is assumed to cause severe neurological dysfunction. A mathematical model previously developed to calculate embolism absorption time based on i
Autor:
Jack A. Elias, J. M. Clark, Milton D. Rossman, N. D. Flores, J. B. Pisarello, Christian J. Lambertsen, R. Gelfand
Publikováno v:
Journal of Applied Physiology. 86:243-259
As part of a study of human organ O2tolerance, lung flow-volume and spirometric measurements were performed repeatedly before, during, and after continuous O2exposures at 1.5, 2.0, and 2.5 ATA for average durations of 17.7, 9.0, and 5.7 h, respective
Autor:
M. Stierheim, Brett E. Skolnick, WC Stevens, G Beck Jr, R. Gelfand, Christian J. Lambertsen, J. M. Clark, R. E. Farber
Publikováno v:
Journal of Cerebral Blood Flow & Metabolism. 16:1255-1262
Cerebral blood flow (CBF) was measured by 133Xe clearance simultaneously with the velocity of blood flow through the left middle cerebral artery (MCA) over a wide range of arterial PCO2 in eight normal men. Average arterial PCO2, which was varied by
Publikováno v:
Aviation, space, and environmental medicine. 77(8)
It was hypothesized that long-duration exposures to toxic levels of hyperoxia would have effects on respiratory control function or activity.Ventilatory parameters of human subjects breathing spontaneously at rest were measured before, during, and af
Autor:
Christian J, Lambertsen
Publikováno v:
Underseahyperbaric medicine : journal of the Undersea and Hyperbaric Medical Society, Inc. 31(1)
Autor:
Christian J. Lambertsen, R. Gelfand, J. M. Clark, Dimitri Guvakov, John A. Detre, Thomas F. Floyd, Roderic G. Eckenhoff, Sarah J. Ratcliffe
Publikováno v:
Journal of applied physiology (Bethesda, Md. : 1985). 95(6)
Breathing 100% O2 at 1 atmosphere absolute (ATA) is known to be associated with a decrease in cerebral blood flow (CBF). It is also accompanied by a fall in arterial Pco2 leading to uncertainty as to whether the cerebral vasoconstriction is totally o
Publikováno v:
Journal of applied physiology (Bethesda, Md. : 1985). 84(1)
Gelfand, R., C. J. Lambertsen, J. M. Clark, and E. Hopkin.Hypoxic ventilatory sensitivity in men is not reduced by prolonged hyperoxia (Predictive Studies V and VI). J. Appl. Physiol. 84(1): 292–302, 1998.—Potential adverse effects on the O2-sens
Autor:
Christian J. Lambertsen, J. M. Clark, W. D. B. Hiller, Michael Unger, R. Gelfand, Robert M. Jackson
Publikováno v:
Journal of applied physiology (Bethesda, Md. : 1985). 71(3)
As a pulmonary component of Predictive Studies V, designed to determine O2 tolerance of multiple organs and systems in humans at 3.0–1.5 ATA, pulmonary function was evaluated at 1.0 ATA in 13 healthy men before and after O2 exposure at 3.0 ATA for