Pulmonary carcinoid tumors is tissue and organ culture

Pulmonary carcinoid tumors arise from cells whose function is yet to be defined. Conditions for maintenance of cells of these tumors for prolonged periods of time in tissue and organ cultures were established in order to gain insight into their supposed endocrine activity. We succeeded in growing explants of these tumors in organ culture for as long as 5 months without the cells losing their ability to produce large numbers of neurosecretory-type granules.     

Instructional modeling and the development of visual- and verbal-mediation skills by TMR children

A study-recall paired-associate (PA) learning task administered to 40 TMR children under one of four instructional-modeling conditions: imagery, verbal mediation, imagery and verbal mediation, and a control condition. On one-half of the PA-learning study trials, the children were provided modeled mediating responses (connective pictures and/or sentences) and on the other trials no model was provided. The children's use of mediating responses on study trials was evaluated as was their recall performance. Each instructional-modeling condition resulted in more effective mediator use and better recall than the control condition. Verbal-mediation training was more effective than instruction in the use of visual imagery. Generation of mediators was most apparent when youngsters were first provided with models and then required to generated their own mediating responses. Gains in mediator use and recall were retained over a period of several days.     

Validation of the subcutaneous-jet method of smallpox vaccination

Reactogenic properties and survival of the smallpox vaccine virus in the organism of the vaccinated rabbits were studied for the purpose of experimental substantiation of the subcutaneous-jet method of smallpox vaccination; serological shifts were determined, and also the intensity of the immunity created to the intracerebral and intranasal infection with the pathogenic strain of the causative agent was assessed. The results of experiment were confirmed in revaccination of humans pointing to weak reactogenic properties and high immunological efficacy of the subcutaneous-jet method of smallpox vaccination.