Decline of growth hormone (GH) with aging is associated to memory and cognitive alterations. In this study, the number of neurons in the hilus of the dentate gyrus has been assessed in male and female Wistar rats at 3, 6, 12, 14, 18, 22 and 24 months of age, using the optical fractionator method. Male rats had more neurons than females at all the ages studied. Significant neuronal loss was obse...

The flexible goal adjustment (FLEX) and tenacious goal pursuit (TEN) scales are used regularly in aging research. The current study examined their validity in a sample of 517 women (30–75 years) in multiple ways. Overall, the findings show that the scales do not clearly distinguish between FLEX and TEN. The direction in which the items were formulated was just as important as what was being mea...

The aging process is a normal stage in development characterized by the gradual deterioration of all life functions. As far as reproduction is concerned, aging is characterized by a significant limitation of fertility in both sexes. This process is, at least partially, attributed to the action (or loss of action) of sex steroids, coinciding with low activity of the pituitary-gonad axis. From an...

Medicare has begun to implement a new payment system for physician services; the system's cornerstone is a resource-based relative value scale (RBRVS) that divides physician services into three components--physician work, practice expense, and malpractice insurance--and calculates a relative value for each component. The relative values for the components are adjusted for geographic differences...

An analytical model for mid-infrared (mid-IR) silicon Raman lasers (SRLs) is developed. The relative intensity noise (RIN) transfer from the pump to the Stokes in the lasers is also investigated. The analytical model can be used as a versatile and efficient tool for analysis, design and optimization of mid-IR SRLs. It is shown that conversion efficiency of 70% is attainable and the low-frequenc...

OBJECTIVE To examine changes in reported functioning over a 12-month follow-up period and predictors of those changes for a cohort of young children enrolled in foster care. DESIGN Data came from a longitudinal follow-up of a cohort of young children entering foster care in one Connecticut region. These data were originally assembled to evaluate the effectiveness of a specialized set of servi...

The flexible goal adjustment (FLEX) and tenacious goal pursuit (TEN) scales are used regularly in aging research. The current study examined their validity in a sample of 517 women (30-75 years) in multiple ways. Overall, the findings show that the scales do not clearly distinguish between FLEX and TEN. The direction in which the items were formulated was just as important as what was being mea...