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M K McGee

Publications and source records attributed to M K McGee.

3 recordsLinked to original sources

Adult human thyroid weight.

The weights and dimensions of approximately 1400 normal human thyroid glands were taken at autopsy by the King County Medical Examiner's Office (Seattle, WA) over a two-year period ending in the spring of 1981. The values for thyroid gland weight observed in this data set were compared statistically with those presented by Mochizuki, Mowafy, and Pasternack (New York), with no significant difference being found between the two studies. The two data sets were combined and treated as one providing three distinct adult thyroid gland weights based on age and sex. Male thyroid glands in the age group 20-29 y showed an average of 16.4 g, males 30-69 y of age 18.5 g and females 20-69 y of age 14.4 g. These values are significantly lower than the 20-g (male) and 17-g (female) reference weights given in ICRP Publication 23.

Adult↗

The effect of the growth of facial hair on protection factors for one model of closed-circuit, pressure-demand, self-contained breathing apparatus.

Protection factors for one model of closed-circuit, pressure-demand, self-contained breathing apparatus were determined for eight volunteers while clean-shaven and at approximately two-week intervals during an eight-week, beard-growth period. Measurement of facepiece leakage was patterned after the DOP quantitative fit test method outlined in ANSI Z88.2-1980. Comparison of results indicated that beard growth had a profound adverse effect on the amount of protection provided.

Analysis of Variance↗