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Biomedical subjects

D Ronis

Publications and source records attributed to D Ronis.

At least 19 recordsLinked to original sources
PubMed2002

Nonequilibrium velocity distributions in liquids: systems under shear.

A Green-Kubo expression for the nonequilibrium correction to the velocity distribution function is studied in a molecular dynamics simulation for systems interacting through a 6-12 potential and undergoing linear shear. As a function of velocity, the first correction to the distribution function has a form similar to what would be obtained from the Boltzmann-Enskog equation, although the amplitude is qualitatively different, except at infinite dilution. The difference comes from elastic effects seen in the short-time behavior of the underlying time correlation functions.

Journal Article↗
PubMed1993

College students' perception of vulnerability/susceptibility and desire for health information.

The specific aims of this study were to develop a questionnaire and conduct a survey of college students 18-22 years of age, in order to determine (1) their perception of being vulnerable and susceptible to health problems and (2) their interest in receiving help and information about health maintenance. Material from four 2-h focus groups provided the content for the initial questionnaire. Pilot testing of the early drafts consisted of several phases in which students completed the tool in both group situations and in face-to-face interviews. The final questionnaire was completed by 364 students on two campuses in the Midwest. Two scales were identified using factor analysis and analysis for internal consistency. The Vulnerability/Susceptibility Scale demonstrated a good reliability (Kuder-Richardson-20 = 0.8136) and five factors were identified through factor analysis. The Information Scale demonstrated a high reliability (Kuder-Richardson-20 = 0.8958) and two factors were identified through factor analysis. Based on analysis of variance (ANOVA) data, a model was developed using the variables of the Vulnerability/Susceptibility Scale, the Information Scale, gender and health rating. The model was then tested using multiple regression analysis. This study identified health related areas about which the students feel vulnerable/susceptible and are interested in receiving health help/information. This study suggests which population of college students might be most receptive to health information and future behavioral strategies.

Adolescent↗
PubMed1993

Behavioral analysis and behavioral strategies to improve self-management of type II diabetes.

The implications of behavioral analysis for practice and research have significant potential for nursing. This present study was conducted to determine the effectiveness of nurses and patients actively participating in behavioral analysis and the implementation of behavioral strategies in order to improve the patients' self-management of their Type II diabetes. Patients (N = 156) were randomly assigned to one of four groups. The attention control group (n = 41) received routine care. The compliance group (n = 32) agreed to practice compliance behaviors related to the prescribed medical regimen. The behavioral strategies group (n = 42) participated in behavioral analysis and agreed to practice behavioral strategies. The behavioral strategies with instruction group (n = 41) participated in behavioral analysis, agreed to practice behavioral strategies, and received classes and programmed instruction about behavioral analysis and behavioral strategies. There were no outcome differences between groups relative to glycosylated hemoglobin (GHb) and weight loss. There were differences in the outcome measures in subgroups by age, gender, and employment, which have practice and research implications for the individualization of interventions using behavioral strategies.

Behavior Therapy↗