A model to analyze resemblances of twins and parents using LISREL is outlined and applied to sports participation and heart-rate data. Sports participation and heart rate were measured in 44 monozygotic and 46 dizygotic adolescent twin pairs and in their parents. Genetic factors influence variation in both sports behavior and heart rate, while there is no evidence for transmission from parental...

OBJECTIVE Question Prompt Lists (QPLs) have been used extensively in the oncology setting to improve communication, psychological and/or cognitive outcomes. In this systematic review, the objectives were to (a) examine the methodological quality of QPL interventions, (b) review the effectiveness of QPL interventions on communication, psychological and/or cognitive outcomes of cancer patients, (...

OBJECTIVE To review the literature on the involvement of patients in efforts to promote their own or others' safety while using health care services. METHOD A total of 1933 reports were identified as potentially relevant and 745 of these were included in the review (437 descriptions of interventions, 299 comment or opinion pieces and 42 discussions or studies of patients' willingness and abil...

This exploratory study examines the impact of ending the military draft on U.S. voter turnout from 1960 through 2006. After allowing for a number of variables, including the unemployment rate, unionization, the female labor force participation rate, per capita real GDP, and Presidential approval ratings, compelling evidence is found that ending the military draft in the U.S. may have acted in a...

I examine the effect of Old-Age Insurance systems on the labour supply of older men. Male retirement ages are crucial to the solvency of OAI systems. Historical data on participation rates and OAI rules in thirteen developed countries show rapid falls in participation among men aged 60-4 after pensions were extended to them. I estimate participation elasticities of -0.06 with respect to replace...

Recent studies investigated participation and performance trends in age group half marathoners and full marathoners for a single event. The present study investigated participation and performance trends in age group athletes in all half marathons and full marathons held in a single country during a given period of time. Changes in running performance and age of 226,754 half marathoners and 86,...