Biomedical subjects
Publications and source records attributed to G R Glover.
Cochrane, in his studies of psychiatric admission rates amongst immigrant groups in Britain, allocated cases for which birthplace data was lacking by assuming that the patients were most likely to be British-born. A validation study shows this may not be justified. Estimates are made of the magnitude of the possible resulting error.
Five-year-old lobloliy pine (Pinus taeda L.) seedlings were grown in sand culture in a completely randomized experimental design with eight nitrogen concentrations and three replications. Nitrogen concentration in the nutrient solution varied from 2 to 400 ppm. After a full growing season under treatment, percent reflectance of sunlight by new foliage was determined. Foliar samples were analyzed for nitrogen and chlorophyll. There was a strong positive correlation between nitrogen content and chlorophyll content (r = 0.895). The natural logarithm of percent reflectance was negatively correlated with both percent nitrogen content (r = -0.845) and chlorophyll content (r = -0.838). From these results, prediction equations for estimating nitrogen and chlorophyll content, as a function of reflectance, were formulated by regression analysis.
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