Ten young women (age 20 to 22 years) and 10 middle-aged women (age 36 to 44 years) served as subjects in choice reaction time, letter classification, and abstract matching-to-sample tasks. In each of seven conditions, the older group responded more slowly than the younger group. Age differences showed a complexity effect. That is, differences between the latencies of young and old subjects incr...

Disease classes have hitherto been based on anatomical pathology and structural lesions belonging to an earlier ecological medical model involving classification. The diseases of ageing now coming to dominate clinical practice evolve across the clinical threshold in middle age parallel to changes occurring in the internal environment. The concept 'multiple pathology' used to describe the plural...

This paper investigates how the association between cognitive achievement and self-rated health in middle age differs by race, and attempts to explain these differences. The role of cognition in health determination has received only limited empirical attention, and even less is known about how race may affect this relationship. Using data from the NLSY, I find that while Whites with higher cog...

While uneven-aged silviculture may appear preferable to even-aged silviculture in terms of stand susceptibility to windthrow (major wind damage), the scientific evidence is equivocal on this issue, because the two systems do not operate over the same time frame. The goal of this study was to evaluate the windthrow susceptibility of evenand uneven-aged stands over a 100-year period. Susceptibili...

OBJECTIVE To assess the relative effectiveness of combining self-management and strength training for improving functional outcomes in patients with early knee osteoarthritis. METHODS We conducted a randomized intervention trial lasting 24 months at an academic medical center. Community-dwelling middle-aged adults (n = 273) ages 35-64 years with knee osteoarthritis, pain, and self-reported ph...

introduction: one of the most popular methods for evaluating old people’s health condition is to assess their functional practice. the aim of this study was to assess the status of daily living activities among the older people of maku, iran. methods: the present cross-sectional study was accomplished among 216 older people in maku via simple random sampling. participant’s subjective and demogr...

conclusions this study suggests that symptoms like chronic abdominal pain, and chronic constipation seem to put a heavy burden on the economy of the country, so training programs for pediatricians and general physicians that can well train them to handle such symptoms may decrease the number of clinical visits, repetitive investigation procedures, and utilizing multiple prescription drugs. also...