A description and clinical research application of the control-mastery theory

An introduction to the key concepts in a new psychoanalytic theory, “control-mastery theory” is offered. The role of the trauma and the resulting development of pathogenic beliefs is emphasized in the etiology of all psychopathology. The clinical interventions therapists can use to help patients disconfirm pathogenic beliefs are described. An empirical study is referred to which demonstrates the power of the theory to predict the patient's immediate reactions to the therapist's termination interpretations (Bush & Gassner 1986).     

AN ECONOMIC ANALYSIS OF THE DEMAND FOR ABORTIONS

This study uses an economic model of fertility control to estimate the demand for abortions. The results show that the fundamental law of demand holds for abortions, with the price elasticity of demand equal to –.81. Abortions are a normal good with an income elasticity of demand equal to .79. The demand for abortions is also positively related to the labor force participation of women and to being unmarried. Catholic religion, education and the poverty status of women were found to have no statistically significant impact on the demand for abortions.     

Predictors of out-of-pocket medical expenditures in low-income households

From a sample of low-income households, out-of-pocket medical expenses are found to average about $25 per month. For each household, these expenses vary with annual income, type of insurance for medical care, priority of medical expenses, ethnicity, and number of ill family members. Expenses are reported for households with different socioeconomic characteristics and composition. Multiparticipation in insurance programs is shown. Fourteen percent of the survey participants say they have no insurance, public or private. Thirty-three percent participate in Medicaid.Flora L. Williams is an Associate Professor in Consumer Sciences and Retailing at Purdue University, West Lafayette, IN 47907. She received her Ph.D. from Purdue University and includes family economic well-being, and financial problems and expenditures among her research interests.Amy Hagler received her M.S. from Purdue University in Consumer Sciences and Retailing.Mary Pritchard is an Associate Professor in the Department of Human and Family Resources at Northern Illinois University, DeKalb, IL 60115-2854. Her Ph.D. was earned at Purdue and her areas of research focus on family economic well-being and economic socialization of adolescents.Marshall A. Martin is a Professor of Agricultural Economics at Purdue University. His research addresses agriculture and food policy, and economic assessment of emerging agricultural technology.William C. Bailey is an Assistant Professor of Marketing at the University of Indianapolis, 1400 E. Hanna Avenue, Indianapolis, IN, 46227-3697. He received his Ph.D. from Texas Tech University and focuses his research on economic psychology and health care cost.     

The impact of legislator and constituency ideology on voting on the assault weapons ban

Using variables that represent a legislator's entire legal constituency, previous research by social scientists has concluded that views of the legislator's constituency have little effect on how legislators vote. This question is reexamined by defining constituency as those voters most likely to vote for the legislator (i.e., members of the legislator's own political party and independents). Furthermore, instead of measuring constituency by either a demographic or vote-based measure, a survey measure of the ideological identification of voters (i.e., the voter's self-identification as liberal, moderate, or conservative) is introduced. It is found that the ideology of a senator's electoral constituency was an important factor on the recent U.S. Senate vote to ban 19 semi-automatic assault weapons. The findings have important implications for how social scientists conceptualize and measure constituency.     

Locus of illness control: a cross-cultural study

A comparative study of rural Haitian and southern Appalachian health beliefs revealed significant differences both within and between groups regarding perceived control over illness. Data consisted of scores (N = 293) on the Locus of Illness Control Scale, a 15-item forced-choice instrument designed to include two subscales, one focused on illness prevention, the other on cure. Both cultural groups scored more externally on the cure dimension than they did on prevention. Group differences, however, were reversed for the subscales. While Appalachians apparently expect greater success in preventing illness, interestingly, Haitians show greater perceived ability to cure illness. The findings have implications for traditional views of "fatalistic" cultures, for the refinement of concepts related to health locus of control, and for the practical utility of standardized instruments among populations that vary in health problems and therapeutic resources.     

The simulation of industrial robot systems

This paper describes the GRASP computer aided design system for modelling and evaluating industrial robot workplaces. GRASP satisfies a range of simulation needs within the context of designing, implementing and operating industrial robotic systems. The GRASP software may be used to investigate robots operating by themselves or, more likely, as part of an integrated cell. Facilities within GRASP assist workplace layout, position and velocity evaluations, clash detection and co-ordination between items. A robot library exists and is being extended, and an embryo off-line programming facility has been used under restricted conditions. GRASP has been used to help solve a wide range of practical industrial robot problems and has proved itself technically, and also as an educational tool, by showing how a proposed system would operate. The paper describes the facilities within GRASP.     

A Comparative Exposure Assessment of Campylobacter in Ontario,Canada

To inform source attribution efforts, a comparative exposure assessment was developed to estimate the relative exposure to Campylobacter, the leading bacterial gastrointestinal disease in Canada, for 13 different transmission routes within Ontario, Canada, during the summer. Exposure was quantified with stochastic models at the population level, which incorporated measures of frequency, quantity ingested, prevalence, and concentration, using data from FoodNet Canada surveillance, the peer‐reviewed and gray literature, other Ontario data, and data that were specifically collected for this study. Models were run with @Risk software using Monte Carlo simulations. The mean number of cells of Campylobacter ingested per Ontarian per day during the summer, ranked from highest to lowest is as follows: household pets, chicken, living on a farm, raw milk, visiting a farm, recreational water, beef, drinking water, pork, vegetables, seafood, petting zoos, and fruits. The study results identify knowledge gaps for some transmission routes, and indicate that some transmission routes for Campylobacter are underestimated in the current literature, such as household pets and raw milk. Many data gaps were identified for future data collection consideration, especially for the concentration of Campylobacter in all transmission routes.