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Analytical review of structure and regulation of hemopoiesis

Description: The development of knowledge on the structure of hemopoiesis and its regulation can be divided into four broad areas: descriptive morphology, kinetics of cell proliferation, regulation of rates of cell proliferation through interaction of molecular regulators and their cell surface receptors, and clinical applications. 60 refs., 6 figs.
Date: January 1, 1987
Creator: Cronkite, E.P.
Partner: UNT Libraries Government Documents Department
open access

Estimates of radiation doses in tissue and organs and risk of excess cancer in the single-course radiotherapy patients treated for ankylosing spondylitis in England and Wales

Description: The estimates of absorbed doses of x rays and excess risk of cancer in bone marrow and heavily irradiated sites are extremely crude and are based on very limited data and on a number of assumptions. Some of these assumptions may later prove to be incorrect, but it is probable that they are correct to within a factor of 2. The excess cancer risk estimates calculated compare well with the most reliable epidemiological surveys thus far studied. This is particularly important for cancers of heavily… more
Date: February 1, 1982
Creator: Fabrikant, J.I. & Lyman, J.T.
Partner: UNT Libraries Government Documents Department
open access

LUDEP: A Lung Dose Evaluation Program

Description: A Task Group of the ICRP is currently reviewing its dosimetric model for the respiratory tract with the aim of producing a more comprehensive and realistic model which can be used both for dosimetry and bioassay purposes. This in turn requires deposition, clearance, and dosimetry to be treated in a more detailed manner in than in the current model. In order to examine the practical application and radiological implications of the proposed model, a microcomputer program has been developed in a m… more
Date: June 1, 1990
Creator: Birchall, A.; Bailey, M.R. (National Radiological Protection Board, Chilton (UK)) & James, A.C. (Pacific Northwest Lab., Richland, WA (USA))
Partner: UNT Libraries Government Documents Department
open access

Laser-induced contained-vaporization in tissue

Description: When a transparent liquid or solid medium is present in front of an opaque target being irradiated by an intense laser beam, then the expansion of hot vapors generated (at the interface between the medium and the target) by the irradiant heating of the target is restrained by the medium. The tamping effect of the overlying liquid or solid can cause a much larger fraction of the deposited energy to go into kinetic energy, which leads to enhanced tissue disruption, compared to when a gas or vacuu… more
Date: January 1, 1992
Creator: Dingus, R. S.
Partner: UNT Libraries Government Documents Department
open access

CHORD simulation for insult assessment to the red bone marrow. [Photons, neutrons]

Description: Critical Human Organ Radiation Dosimetry (CHORD) probability density functions for A-P, P-A, bilateral, rotational, and isotropic incidence, plus simple depth-dose data, permit the rapid estimation of the radiation insult to the active red bone marrow system of the ICRP Reference Man. The CHORD concept follows the variations in the microscopic processes of absorption, attenuation, and scattering on a macroscopic level so that it is not necessary to attempt detailed calculations for each and eve… more
Date: September 1, 1976
Creator: Jones, T. D.
Partner: UNT Libraries Government Documents Department
open access

Radiation insult to the active bone marrow as predicted by a method of CHORDS. [Photons, neutrons]

Description: Critical Human Organ Radiation Dosimetry (CHORD) probability density functions for A-P, P-A, bilateral, rotational, and isotropic incidence, plus simple depth-dose data, permit the rapid estimation of the radiation insult to the active red bone marrow system of the ICRP Reference Man. The CHORD concept follows the variations in the microscopic processes of absorption, attenuation, and scattering on a macroscopic level so that it is not necessary to attempt detailed calculations for each and eve… more
Date: March 1, 1976
Creator: Jones, T. D.
Partner: UNT Libraries Government Documents Department
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