Personality correlates of semantic habits in the deaf

The relationships between personality characteristics and semantic habits were explored with use of The Sixteen Personality Factory Questionnaire, Form E, and a measure of semantic habits. Ss were 102 deaf male and female college students. The results, analyzed separately by sex, showed a few significant relationships. Deaf males who were emotionally less stable and affected by feelings tended to prefer positive and negative evaluations. Relaxed, tranquil, and unfrustrated deaf males tended to neglect positive and negative evaluations and to prefer categorical responses to detail ones. Serious and sober deaf females tended to neglect negative evaluations.

Acoustic image in visual detection for deaf and hearing college students

To explore the role of acoustic factors in visual detection, this study employed 40 deaf and hearing Ss. Ss were requested to cancel all the letters "e" in a passage from Treasure Island. Results were analyzed in terms of probabilities of missing a pronounced or silent e and the e in the word "the." Hearing and hard of hearing Ss were more likely to miss silent e's than pronounced e's. There was no significant difference between silent and pronounced e's for the profoundly deaf. Deaf and hearing Ss missed significantly more e's in "the" than pronounced or silent e's. The deaf, when compared to the hearing Ss, were more efficient in detecting pronounced and silent e's. They did not differ significantly from the hearing Ss in detecting the e in "the."

Polypeptide composition of fraction I protein from Nicotiana glauca and from cultivars of Nicotiana tabacum, including a male sterile line

The polypeptide compositions of fraction I protein isolated from six collections of Nicotiana glauca and from ten cultivars of N. tabacum, as well as a polyploid series and a male sterile line, have been analyzed by isoelectric focusing in polyacrylamide gel slabs containing 8 M urea. Apart from the male sterile line, none of the plants showed any variation from the species pattern of polypeptides. Fraction I protein from the male sterile Burley 21 cultivar of N. tabacum contained the two small subunit polypeptides of N. tabacum and the three large subunit polypeptides of an Australian species, probably N. megalosiphon. This indicates a changed chloroplast genome in the male sterile line in comparison to the normal fertile N. tabacum.

Comparison of physical and immunological properties of plasma membranes of two mouse leukemia cell lines, P388 and L1210

A method for the isolation of the plasma membranes of the mouse leukemic cell P388 is described. The method includes surface labeling of the cell membrane with 125I. The 125I specific activity of the plasma membrane preparation is 10- to 13-fold higher than that of the cell homogenate; enzyme assays and electron microscopy further corroborate the purity of the P388 plasma membrane preparation. The predominant iodinated membrane proteins have molecular weights of 85,000, 66,000, and 13,000 daltons. Antibodies prepared against P388 and L1210 plasma membranes inhibit the growth of the corresponding cells in the absence of complement. They show cross-reactivity to each other but do not affect the growth of HeLa cells.