Small peptides radiolabeled with 99mTc

The primary aim of this experimental investigation was to examine the effects of short-term dietary restriction on caloric consumption in eating disordered subjects. Subjects with bulimia nervosa, binge eating disorder, and overweight non-eating disordered subjects, attended a laboratory experiment during which they were randomly assigned to either a 1 h or a 6 h food deprivation condition prior to being served a multi-item buffet. The primary measure of interest was calories consumed during the laboratory experiment. Subjects deprived of food for 6 h consumed significantly more calories at the buffet compared to subjects in the 1 h food deprivation condition. However, caloric intake during the entire laboratory day was not affected by the experimental manipulation. Subjects in the longer deprivation condition apparently compensated at the buffet for the caloric restriction, but did not overcompensate.     

The volume expansion accompanying the martensite transformation in iron-carbon alloys

A dilatometric investigation was conducted to determine the effect of carbon on the volume expansion accompanying the martensite transformation in iron-carbon alloys. It was found that the volume expansion at theM _s temperature varies from 2.0 pct at 0.19 wt pct carbon to 3.1 pet at 1.01 pct carbon, largely due to the effect of carbon on lowering the temperature at which the transformation occurs. Also of importance is the solid solution effect of carbon on altering the lattice parameters of both the austenite and martensite phases at theM_s.     

An Ipproved, Multiple Stirrer for the Round-Bottom Flask Dissolution Method

A multiple stirrer round-bottom flask dissolution apparatus was constructed which improved the reproducibility of dissolution test results when compared to single stirrer apparatus results. A statistical analysis comparing the single stirrer method and the new multiple stirrer dissolution apparatus showed that a significant reduction in variance resulted when the multiple stirrer apparatus was employed.     

Comparing physician and administrator responses to cesarean section guidelines and actual practice

BACKGROUND: A cross-sectional study was conducted in 1996 to determine to what extent hospitals have adopted guidelines to improve the appropriate use of cesarean section (C-section); discover attitudes of obstetricians toward C-section guidelines; and explore how physician attitudes toward guidelines interact with organizational features. METHODS: The study consisted of two components: (1) Telephone interviews with hospital administrators from Michigan hospitals providing obstetric care (response rate: 100%); these interviews were intended to determine whether guidelines were in use and the processes for their development and implementation. (2) A self-administered mail survey assessing the attitudes of 266 Michigan obstetricians (response rate: 57%), intended to assess their attitudes toward the content and effects of C-section guidelines. RESULTS: Twenty-nine percent of hospitals were using C-section guidelines, according to reports from hospital administrators. Mean C-section rates were not significantly different between hospitals using guidelines and those not using guidelines (23.2% and 22.4%, p = 0.49). More than 80% of physicians felt that the guidelines were supported by the literature and were applicable in daily practice, and agreed with their ideas about C-section performance, and 67% reported that guidelines would have no or minimal effect on their practice. However, only 55% of physicians and administrators agreed on the presence or absence of guidelines at their hospital (kappa = 0.09). DISCUSSION: Physicians appear to agree with guidelines and believe they are already following them, despite high C-section rates. Physicians' attitudes toward guidelines are not necessarily a reflection of actual practice. If C-section guidelines are to decrease excessive C-section rates, stronger, more integrated implementation strategies are needed.