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Biomedical subjects

D McIntyre

Publications and source records attributed to D McIntyre.

49 records · Page 3Linked to original sources
PubMed1977

Immunotherapy for grass pollenosis with allpyral allergen extracts. Improved results by objective control of treatment requirements.

Nasal provocation testing using a measured dose of dry grass pollen has been used as a method of controlling the amount of injection treatment required to achieve decreased sensitivity to grass pollen. This could seldom be shown at the usual top dose of 10,000 P.N.U., but by repeating the top dose until the reaction was negative, complete freedom from pollenosis was achieved in most cases. Strict criteria for assessment of results were used. Conventional dosage regimens produced only 27 percent excellent results, but 94 percent of those patients who became demonstrably nasal test-negative were completely or almost completely free from symptoms in the pollen season.

Adolescent↗
PubMed1973

A guide to thermal comfort.

This guide provides a simple design procedure for dealing with the requirements for a comfortable thermal environment. From the expected activity level and clothing insulation of the people concerned, a subjective temperature is calculated which will provide thermal comfort. This subjective temperature is a combination of physical parameters of the environment, ie, air and mean radiant temperatures, and air speed. A heating system must be designed to that the parameters combine to give the optimum subjective temperature. The guide also considers other possible sources of discomfort, and gives acceptable limits for them.

Journal Article↗
PubMedDate not supplied

The determination of chain statistical parameters by light scattering measurements.

The effects of volume exclusion on polymer chain conformations can be determined from the study of the angular dependence of radiation scattered by chain molecules. It is found that useful information can be obtained only when the variable x is large, where x is the product of the square of the magnitude of the scattering vector and of the mean square radius of gyration. Hence, solutions of macromolecules of very high molecular weight are needed for these investigations. The theoretical treatment of the scattering function is based on several assumptions. The validity of these assumptions is examined by computing, using a Monte-Carlo technique, various moments of intramolecular separations and comparing the results so obtained, in the limit of a chain of infinite length, with the analytical results. The computations seem to verify the validity of the theoretical model. The scattering behavior of solutions of recently synthesized polystyrene of Mw = 4.4 X 10(7) in cyclohexane at various temperatures and in benzene at 40 degrees was investigated. From the log-log plots of the scattering function vs. x, a statistical parameter was calculated, whose value depends on the magnitude of long-range correlations between any pair of chain elements. It is found that above the theta temperature this parameter is practically independent of temperature and that its numerical value was found to agree well with the value obtained from Monte-Carlo calculations. In the neighborhood of the theta temperature, this parameter decreases rapidly with decreasing temperature, indicating a first-order transition in chain conformation.

Kinetics↗