Prevalence and epidemiologic correlates of Chlamydia trachomatis in rural and urban populations.

In two rural and two urban family planning clinics in central Pennsylvania, the authors screened 889 women making routine visits for Chlamydia trachomatis using the Chlamydiazyme immunoassay method (Abbott Laboratories; North Chicago, IL). C. trachomatis antigens were detected in 11.

Electrically heated simulator for relative evaluation of alternative infant incubator environments.

A 10.9-cm diameter, copper ellipsoid was electrically heated to provide a simulation of sensible heat transfer from a newborn infant. The use of this simulator to determine mean radiant temperature and convective heat-transfer coefficient was demonstrated in three commercial incubators: the Isolette (Model C-86, Narco/Air Shields); the Armstrong Care-ette (Ohio Medical Products); and the I.

Characteristics and perceptions of after-hours callers.

After-hours care remains an important aspect of community practice although little is known about the views of either physicians or patients. This study presents an analysis of 12 499 after-hours calls made to a family practice centre over a five-year period, and 798 follow-up telephone interviews conducted with people who called for help after hours. Fifty per cent of the callers requested care for themselves while the remainder made the call for another family member, usually a child; most had discussed the problem with family or friends before calling.

Education as a hidden cost in ambulatory care.

Since nearly a quarter of this nation's hospitals' outpatient and emergency rooms engage in medical education, it is of critical importance for administrators to determine the extent to which medical training influences the operational costs and efficiency of patient care for those services in their facilities. A computer simulation model has been developed at a midwest adult medical clinic to study the effects of ambulatory medical training on clinic operations. The model is capable of showing changes in the facility without disrupting the work flow and thus reduces the problems associated with long-term data collection.

Peer facilitation of generalization in a preschool classroom.

Two 5-year-old deviant preschoolers taught each other, as peer-tutors, to identify pictorial figures describing prepositional relationships. During training sessions monitored by the experimenter, the child in the peer-tutor role presented stimulus materials and provided consequences for the responses of the child in the tutee role. An assessment of generalization by each child to an academic classroom setting occurred each day.