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Biomedical subjects

L B James

Publications and source records attributed to L B James.

24 records · Page 2Linked to original sources
PubMed1977

Rapid and quantitative blood amino acid analysis by chemical ionization mass spectrometry.

A quantitative analysis of amino acids in microsamples of dried blood spots by chemical ionization mass spectrometry has been developed. Isotope ratio determination was used as the quantitating technique via multiple labelled internal standards. This procedure yields excellent precision and accuracy as demonstrated by the analysis of known amino acid mixtures and of phenylalanine in the blood from newborns.

Amino Acids↗
PubMed1976

Black children's perceptions of black english.

In studying the perception of differences between Black English and Standard English by 48 first-grade, urban, Black children, BE and SE were partitioned into content, i.e., syntax and lexicon, and style, i.e., suprasegmentals or prosodic features of phonology. A discrimination task was designed to test whether the subjects could perceive differences in terms of style or content or both. Accurate discriminations were related to language variety preference and school and home-street register maintenance. The results indicated BE style to be as significantly related to BE preference and register maintenance as BE content when the two were separated.

Black or African American↗