An extension of the Kohn-Luttinger method for the energy levels of the effective-mass
Hamiltonian H=(P x 2 2 m⊥+ P y 2 2 m⊥+ P z 2 2 m∥)− e 2 Kr is made via the Rayleigh-Ritz …

To investigate the influence of physical activity on bone mineral accrual during the adolescent
years, we analyzed 6 years of data from 53 girls and 60 boys. Physical activity, dietary …

This article reports three studies that investigated psychometric properties of the Physical
Activity Questionnaire for Older Children (PAQ-C). The PAQ-C is a guided self-administered 7-…

Two studies assessed the validity of the Physical Activity Questionnaire for Older Children (PAQ-C),
a 7-day recall that assesses general moderate to vigorous physical activity levels …

Bone area (BA) and bone mineral content (BMC) were measured from childhood to young
adulthood at the total body (TB), lumbar spine (LS), total hip (TH), and femoral neck (FN). BA …

Isoelectronic impurities in semiconductors are investigated using a Koster-Slater one-band—one-site
approximation. Good agreement with experiment is found for the optical absorption …

The aim of this study was to examine the relationships among biological maturity, physical
size, relative age (ie birth date), and selection into a male Canadian provincial age-banded …

Normative bone mineral density (BMD) and bone mineral content (BMC) values for the total
body (TB), proximal femur (PF), and antero-posterior lumbar spine (LS) were obtained from a …

Longitudinal secondary dyadic data from first time marriages were analyzed from the National
Survey of Families and Households (Sweet, Bumpass, & Call, 1988 ), for the purpose of …

Peak adolescent fracture incidence at the distal end of the radius coincides with a decline in
size‐corrected BMD in both boys and girls. Peak gains in bone area preceded peak gains in …