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Biomedical subjects

N Kawamoto

Publications and source records attributed to N Kawamoto.

27 records · Page 2Linked to original sources
PubMed1991

Reading, spelling, and recognition of briefly exposed words and nonwords.

Four groups distinct in terms of English reading comprehension and spelling skills were identified among 141 Japanese college students: 5 good readers and spellers, 6 good readers but poor spellers, 3 poor readers but good spellers, and 4 poor readers and poor spellers. They were then tested on instantaneous recognition of words and nonwords. Analysis showed that the recognition performance was more strongly associated with spelling than with reading comprehension. Immediate memory and "sophisticated" guessing, which were associated with spelling, were considered to be critical for the recognition task, but the hypothesis that a common processing mechanism is involved in instantaneous word recognition and spelling was rejected.

Adult↗
PubMedDate not supplied

Deleterious effect of null phenoloxidase mutation on the survival rate in Drosophila melanogaster.

The effect of null activity of phenoloxidase on the survival rate was investigated in mutants of Drosophila melanogaster. MoxGM95 and Dox-3KD95, structural genes for prophenoloxidase A1 and A3, were found in natural populations in the former Soviet Union, and affected the phenoloxidase activity in active A1 or A3, respectively. After linking the visible markers located on the second chromosome together with the variants, cross experiments were performed to make homozygote, rdo Dox-3KD95 pr C MoxGM95 wt. No double mutant had emerged. In the mutant, c MoxGM95 wt Pu2, the viability was greatly reduced. These results suggested that phenoloxidase and tyrosine-3-hydroxylase act as indispensable proteins to maintain life in Drosophila.

Animals↗