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Biomedical subjects

W D Ross

Publications and source records attributed to W D Ross.

At least 37 records · Page 2Linked to original sources
PubMed1980

Sex chromosome aneuploidy and anthropometry: a new proportionality assessment using the phantom stratagem.

Reported anthropometric data on 121 subjects with 47,XYY,47XXY,47,XXX, and 45,X aneuploidies were compared to those from 578 male and female control subjects by use of a single, unisex reference person ("phantom"). Subjects and controls were geometrically scaled to a standard stature of 170.18 cm, thus eliminating variance due to height. Deviations of anthropometric variables from specified phantom values were expressed as standard z-scores. By comparing z-scores of individual aneuploidy classes with those of their controls, further differences in proportionality came to light. The stratagem disclosed a systematic proportionality pattern between subjects and controls which appeared to be related to each specific sex chromosome aneuploidy. The phantom stratagem for proportional growth assessment appears to merit further use in genetic investigations where individual differences in size and shape confound the analysis of anthropometric data.

Anthropometry↗
PubMed1980

Anthropometric characteristics of female Olympic rowers.

Anthropometric data on 51 (23%) of the female rowers in the 1976 Montreal Olympic Games are summarized and compared to a female non-rower athletic sample and to a female Canadian university student sample. The rowers, being taller and heavier (means 174.3 cm and 67.4 kg) tended to be larger in all measures than the reference samples, with the exception that the university students had larger mean skinfold thicknesses. The Heath-Carter somatotype distribution of the rowers (mean 3.1 - 3.9 - 2.8) was compared to that of the students (4.0 - 3.5 - 2.9) and other female athletic samples. Proportionality profiles scaled to a unisex reference human or phantom showed both samples to be rather similar in proportional lengths except for longer tibiale height, wider transverse chest breadth, larger flexed arm and forearm girths, and smaller skinfold thicknesses in female rowers than in students. Fractionation of body mass by a four-component model showed the rowers to have similar percent skeletal and residual masses, lower percent fat and higher percent muscle mass than students. The anthropometric characteristics as described and analyzed in this study are submitted as the basic anthropometric reference for those interested in fostering the development of women's rowing.

Adolescent↗
PubMed1975

Analysis for aqueous nitrates and nitrites and gaseous oxides of nitrogen by electron capture gas chromatography.

A highly sensitive gas chromatographic method is presented for the determination of aqueous nitrates. By suitable chemical pretreatment, this method is also applicable to the analysis of aqueous nitrites and gaseous oxides of nitrogen. The method has been applied to the analysis of drinking water, urine, and nitric acid. The technique involves the conversion of the nitrate ion to nitrobenzene with subsequent analysis by electron capture gas chromatography. The detection limit for nitrobenzene is ca. 10(-12) g, making possible the analysis of environmentally significant concentrations of aqueous nitrates and nitrites and gaseous oxides of nitrogen.

Chromatography, Gas↗