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Biomedical subjects

R Rosenthal

Publications and source records attributed to R Rosenthal.

At least 109 records · Page 6Linked to original sources
PubMed1980

Leukemoid reaction in pulmonary carcinoma.

Leukemoid reaction with pulmonary carcinoma has been a rare observation. Three cases are presented in detail with possible mechanisms contributing to the production of a leukemoid blood picture.

Aged↗
PubMed1979

Abnormal mitral valve motion associated with ventricular septal defect following acute myocardial infarction.

It is often difficult to make the clinical distinction between acute mitral regurgitation caused by papillary muscle dysfunction or rupture and ventricular septal defect complicating an acute myocardial infarction. A case of a patient with rapidly progressive congestive heart failure and a loud murmur is presented. Echocardiography strongly suggested the presence of a flail posterior mitral leaflet. However, the patient was subsequently found to have rupture of the interventricular septum. This diagnosis was made with bedside right heart catheterization and was later confirmed by left ventriculography and direct inspection at the time of surgery. The mitral valve apparatus was completely normal. Thus this case demonstrates the apparent lack of specificity of the accepted echocardiographic criteria for flail mitral leaflet and acutely ruptured interventricular septum, and the potential necessity of cardiac catheterization to distinguish between these entities.

Aged↗
PubMed1979

Telling lies.

Men and women (20 each) were videotaped while describing someone they liked, someone they disliked, someone they were ambivalent about, someone they were indifferent about, someone they liked as though they disliked him or her, and someone they disliked as thought they like him or her. Accuracy at detecting that some deception had occurred was far greater than accuracy at detecting the true underlying affect, and people who were good at detecting that deception was occurring were not particularly skilled at reading the speakers' underlying affects. However, people whose deception attempts were more easily detected by others also had their underlying affects read more easily. Speakers whose lies were seen more readily by men also had their lies seen more readily by women, and observers better able to see the underlying affects of women were better able to see the underlying affects of men. Skill at lying successfully was unrelated to skill at catching others in their lies. A histrionic strategy (hamming) was very effective in deceiving others, and this strategy was employed more by more Machiavellian people, who also tended to get caught less often in their lies. Methodological considerations and systematic programs for future research are discussed.

Attitude↗
PubMed1979

The prophage of SP beta c2dcitK1, A defective specialized transducing phage of Bacillus subtilis.

The defective specialized transducing phage SP beta c2dcitK1 carries two known bacterial genes, kauA and citK, as well as SP beta hage markers including the heat-sensitive repressor allele, c2. Some phage genes (including essential ones) are missing. When SP beta c2dcitK1 transduces SP beta-sensitive cells of Bacillus subtilis, the defective prophage is inserted into sites in the homologous bacterial DNA of the attSP beta-kauA-citK region of the recipient chromosome. During the growth of these transductants, occasional excisions occur that result in the loss of the phage genes and of the heterogenotic state. These excisions increase greatly in frequency during growth at repressor-inactivating temperatures. The kinds of insertions and excisions seen suggest that a Campbell-type (CAMPBELL 1962) circular phage genome may occur transiently. If the transductants are superinfected by SP beta c2 or by the clear-plaque mutant SP beta c1, the resulting double lysogen can be heat induced to release high-frequency-of-transduction (HFT) lysates for kauA and citK.

Bacillus subtilis↗
PubMed1979

The structure of nonverbal decoding skills.

The structure of skill at decoding nonverbal cues was examined for 150 high school students and 95 college students. An overall principal components analysis yielded four factors differing in the complexity of the message (pure versus mixed) and in the relative importance of the video versus the audio modality. Factor 1 (pure video) was defined by accuracy at face and body cues of ordinary (2 second) and very brief exposure length. Factor 2 (mixed video) was defined by accuracy at face and body cues with a "noisy" background. Factor 3 (mixed audio) was defined by accuracy at decoding discrepant cues and "noisy" audio cues. Factor 4 (ure audio) was defined by accuracy at pure tone of voice cues. The overall evidence suggested that despite a nontrivial degree of relationship among all measures of skill at decoding nonverbal cues (Armor's Theta = .62), it would increase our theoretical and empirical precision to conceptualize nonverbal decoding ability as made up of several relatively unrelated subskills.

Adolescent↗
PubMed1979

Tantalum inhalation and airway responses.

We studied the effects of tantalum inhalation bronchography on pulmonary function in 14 normal volunteers. Based on the radiographic type of deposition, the subjects were divided into three groups: (1) subjects who deposited tantalum mainly in the trachea, (2) subjects who deposited tantalum in segmental bronchi without radiographic evidence of bronchospasm, and (3) subjects who deposited tantalum in segmental bronchi with radiographic evidence of bronchospasm. Unlike the first two groups, the third group developed a significant but small decrease in the FEV. Airway reactivity as assessed by methacholine challenge did not explain the difference in response to tantalum in the third group. There were no consistent changes in total lung capacity, residual volume, or closing volume in any of the groups. Even though there were falls in FEV and specific conductance in individuals in groups 2 and 3, these changes did not pose any significant clinical risk.

Adult↗
PubMed1978

Nuclear glucocorticoid binding in chronic lymphatic leukemia lymphocytes.

A reliable procedure is described for isolating 3H-triamcinolone acetonide (3H-TA) receptor complexes from purified chronic lymphatic leukemia (CLL) lymphocyte nuclei, based on the use of carbobenzoxy-L-phenylalanine (CBZ-L-phe) to prevent breakdown of hormone-receptor complexes during extraction of nuclei with 0.6M KCl. Using this method, specific nuclear glucocorticoid binding was demonstrated in 14/14 patients with untreated CLL. No correlation was found between levels of nuclear-associated 3H-TA and peripheral white blood cell count or rosetting ability of circulating lymphocytes.

Aged↗
PubMed1975

Encoding and decoding nonverbal cues of emotion.

Subjects ("senders") encoded six emotions twice, first via facial expressions and second via tone of voice. These expressions were recorded and presented for decoding to the senders and an additional group of judges. Results were as follows: (a) the ability to encode and the ability to decode both visual and auditory cues were significantly related; (b) the relationship between encoding and decoding cues of the same emotion appeared low or negative; (c) the ability to decode visual cues was significantly related to the ability to decode auditory cues, but the correlations among encoding (and decoding) scores on different emotions were low; (d) females were slightly better encoders, and significantly better decoders, than males; (e) acquaintance between sender and judge improved decoding scores among males but not among females; (f) auditory decoding scores were higher than visual decoding scores, particularly among males; (g) auditory decoding scores were relatively high if sender and judge were of the same sex, while visual decoding scores were relatively high if sender and judge were of opposite sexes; (h) decoding scores varied according to channel of communication and type of emotion transmitted.

Anger↗