Ventilatory function is a measure of the amount of air a subject can breathe, and is widely used epidemiologically for screening against chronic respiratory disease. The two indices considered here, ...

Both long- and short-term exposures to air pollution have been linked to a variety of adverse health effects. 1 Historically, improvements in exposure assessment have contributed to an increased ...

Smoothness penalties are efficient regularization and dimension reduction tools for functional regressions. However, for spiky functional data observed on a dense grid, the coefficient function in a ...