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Biomedical subjects

M E Vaughan

Publications and source records attributed to M E Vaughan.

4 recordsLinked to original sources
PubMed1989

The effect of a 0.125% chlorhexidine rinse on inflammation after periodontal surgery.

The purpose of this study was to determine the effect of a 0.125% chlorhexidine gluconate rinse on inflammation and bacterial plaque formation after periodontal surgery. Nine patients who required two periodontal surgeries in two posterior areas were selected. The first surgical site was randomly assigned into either 1) active or 2) placebo groups. The patient's second site was assigned to the alternate group. In Group 1 the patients rinsed with chlorhexidine (CH) and in Group 2 with placebo solution, both for 14 days. No periodontal dressing was used and at least 1 month elapsed before the second surgery was performed. Plaque index, gingival index, and crevicular fluid flow measurements were obtained at baseline, and at 1 and 2 weeks after surgery. The chlorhexidine rinse significantly reduced the amount of plaque at both 1 and 2 weeks, and gingival inflammation remained similar to base line measurements at 2 weeks. Neither solution had any effect on the amount of crevicular fluid flow. There was an increase in amount of perceived postoperative pain and gingival swelling with the use of the chlorhexidine rinse, but no difference in the number of pain pills taken during this study. The chlorhexidine rinse was an effective plaque preventive agent after surgical procedures.

Adult↗
PubMed1985

Repeated acquisition in the analysis of rule-governed behavior.

Five children, ranging in age from 3(1/2) years to 5(1/2) years, were taught various four-response chains using conditioned reinforcement. Experiment 1 investigated the effects of presenting "instruction" stimuli-a sequence of lights over the correct response buttons-to assess their role in facilitating the acquisition of a chain of responses. Without the "instruction" stimuli, children made many errors before responses were brought under the control of the programmed contingencies. When confronted with the same contingencies later in the day, these subjects made fewer errors. In contrast, in the presence of the "instruction" stimuli, subjects made virtually no errors. However, when the "instruction" stimuli were discontinued in the subsequent session, all 5 subjects made errors. In Experiment 2, the subjects were taught to verbalize the contingencies during the phase without the "instruction" stimuli. This resulted in errorless performance during the subsequent exposure to the same procedure, but errors nevertheless occurred again during reexposure to the procedure with the "instruction" stimuli discontinued.

Journal Article↗
PubMedDate not supplied

Mission committees' role evolves from operations to oversight.

Originally established in the 1970s to ensure that sisters serving in the health care ministry had input into governing board decisions, mission committees in the Holy Cross Health System, South Bend, IN, have evolved through three stages of development. In their early years, mission committees searched for an identity, struggling to define their roles and purpose. In the committees' second stage, activities were the dominant focus as organizations created an array of audiovisual presentations and educational programs. In the early 1980s lay employees began to assume their distinctive role in promoting the religious institute's mission, and the committees moved from an emphasis on operations to one on oversight and policy direction. Today the mission committees' membership includes not only governing board and congregational members but also the chief executive officer, the chief human resource office, and physicians. The system has strengthened the committees' role by charging them with responsibility for the human resources function. Although no single structure can ensure that an organization's identity is an integral part of the religious institute's mission, the mission committees' work in directing how the organization selects, orients, evaluates, and manages its employees gives clear evidence of the vitality of its mission objectives.

Catholicism↗