[Regional hemodynamics of the penis in erectile impotence]. / Regionarnaia gemodinamika polovogo chlena pri érektil'noi impotentsii.

Regional hemodynamics of the penis is an essential part in the complex investigation of patients with erectile impotence. It is an actual problem to find diagnostically valuable noninvasive techniques allowing one to make a reliable assessment of penile erection mechanisms in various groups of the patients. In this line the authors faced the problem to find out the diagnostic value of dopplerography in measuring the linear rate of the blood flow (LRBF) in the penile arteries during the complex study of penile hemodynamics with regard to various groups of patients. The authors employed the following techniques: measurement of penile systolic pressure; determination of the penile-brachial index; rheophallography and determination of rheographic index; dopplerography and LRBF measurements. A total of 60 males were under study: group I--controls (20 males); group II--sexologically compromised patients without any disease of major vessels; group III--patients with Leriche's syndrome. The findings were analysed in variance. The coefficient of paired correlation was derived. Comparing each parameter between the groups showed a significant difference in each method between groups 2 and 3, as for parameters, only LRBF varied greatly in these groups.

An analysis of alcohol portrayal on prime-time television.

A content and functional analysis of alcohol use was conducted on the 15 most popular prime-time television programs in late 1979. These shows were videotaped and then rated by two independent observers. Interrater agreement, averaged over all code categories, was 91%. Results indicated that alcohol use and verbalizations about alcohol are frequent occurrences on prime-time television. Antecedent conditions to alcohol ingestion were identified. However, no consistent behavioral consequences of alcohol use were observed.

The effect of filmed modeling on cooperative play in disadvantaged preschoolers.

In a series of three studies wer investigated the effect of filmed modeling on cooperative play in disadvantaged preschoolers. These studies were conducted both in a natural (classroom) setting and in a laboratory setting. We were unable to demonstrate a reliable modeling effect with these preschoolers even when an extensive descriptive verbal component was added to the modeling film. In a fourth study we showed that the identical treatment did lead to modeling in middleclass preschoolers but that the content of the extensive verbal component was not related to the effect. These results are discussed in terms of appropriate control procedures for this type of study, the role of an audio component in modeling films, and the implications of the lack of filmed modeling effects for the teaching of disadvantaged preschoolers.

Effects of social reinforcement for visual attention on classroom learning by disadvantaged preschoolers.

To investigate the relationship between visual attention and classroom learning in a disadvantaged preschool population students' attending was experimentally maintained at high levels, using a social reinforcement procedure, and recall of visual and auditory educational materials was examined. Subjects were 16 white children of low income whose mean age was 5.1 yr. and who were students at a Head Start center. A two-group, randomized-blocks design was employed. Reinforcement of attending resulted in greater recall of auditory stimuli by experimental subjects, while a decline was found in recall performance by control subjects. Recall of visual material was not significantly affected by the treatment. Correlations between attending and both auditory and visual recall were statistically significant.