Objective This study investigates the determinants of parental involvement in diverse types stepfamilies. Background Most research has studied married stepfather families with resident children. also includes some more recent and emerging stepfamily (e.g., living-apart-together [LAT] stepfamilies) allowing for a simultaneous examination role biological relatedness, type relationship, residence,...

The residence time of a single dye molecule diffusing within a laser spot is propotional to the total number of photons emitted by it. With this application in mind, we solve the spherically symmetric "residence time equation" (RTE) to obtain the solution for the Laplace transform of the mean residence time (MRT) within a d-dimensional ball, as a function of the initial location of the particle...

BACKGROUND AND AIMS Leaf longevity is controlled by the light gradient in the canopy and also by the nitrogen (N) sink strength in the plant. Stand density may influence leaf dynamics through its effects on light gradient and on plant growth and reproduction. This study tests the hypothesis that the control by the light gradient is manifested more in the vegetative period, whereas the opposite ...

OBJECTIVE Confidence in healthcare may influence the patients' utilisation of healthcare resources and perceptions of healthcare quality. We sought to determine whether self-reported confidence in healthcare differed between the UK and the USA, as well as by rurality or urbanicity. DESIGN A secondary analysis of a subset of survey questions regarding self-reported confidence in healthcare fro...