Body Morph: Feasibility Testing of an Interactive CD-ROM to Teach Young Adolescents about Puberty

The aim of this pilot study was to examine the feasibility of an interactive computer program among 34 sixth and seventh grade children and to assess the potential for knowledge acquisition about puberty. Based on a developmental self-esteem approach to teach children about their bodies, the Body Morph program was designed to maximize the educational experience by: (1) tailoring puberty information to boys or girls, and (2) creating a confidential experience. Preliminary results indicated that students significantly improved their knowledge about puberty after using the program. Satisfaction among boys and girls for this type of educational approach suggests that it is a compelling format from which to learn about puberty.This research project was funded with the support of the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) 1R43DK061269-01A2 to develop an educational computer program to improve body image in middle schoolers.     

The decline in the number of school districts in the U.S.: 1950–1980

Between 1950 and 1980 the number of school districts fell from 83,642 to 15,987. Data for the fifty states for 1950, 1960, 1970, and 1980 are used to identify the factors that contributed to this decline. The focus is on the tradeoff between cost savings through scale economies (a few large districts) and a diverse population's demand for choice in public schooling (many small districts). We find that much of the decline in the number of school districts has resulted from: 1) the decline in the farm population and increase in population density, which has made it easier to take advantage of scale economies; 2) the growing importance of state aid, which reduces quality variation among districts within a state; and 3) the increase in the fraction of teachers that belong to the National Education Association teacher's union, which may reflect increased political influence used to lower the costs of organizing. Several states have laws that require school district and county (or state) boundaries to coincide. In the last section of the paper we estimate the costs of these laws. First, we compare the predicted number of districts, using the regression results in the earlier section of the paper, to the actual number in these states. Then we estimate a demand equation that is used to generate the dollar amount of the cost due to diminished interjurisdictional competition.     

Postmortem Concentration and Redistribution of Diazepam,Methadone, and Morphine with Subclavian and Femoral Vein Dissection/Clamping

Postmortem redistribution (PMR) concerns blood drug concentration variations after death, depending on many factors such as sampling site and technique. In our study, we focused on sampling method. 30 cases were sampled, each at cardiac, subclavian, femoral, and popliteal sites. Targeted substances were diazepam, methadone, and morphine. Blind stick and dissection/clamping techniques were concomitantly performed at subclavian and femoral sites. Subclavian and femoral concentrations were compared according to technique used. To assess the influence of sampling technique on PMR, central/peripheral ratios were calculated depending on sampling method. Results show that drug concentrations tend to be lower when drawn from a clamped subclavian or femoral vein whereas ratios including subclavian and/or femoral blood concentration are influenced according to the technique used. In conclusion, clamping a subclavian or femoral vessel before sampling tends to result in lower drug concentrations and may influence ratios, suggesting the importance of isolating vessels from thoraco‐abdominal viscera.