BACKGROUND: Few middle-aged and older adults engage in regular leisure-time exercise. Incidental physical activity (IPA) ...

Photographs were taken whenever possible. Skin damage was also graded using an automated deep-learning model, generating a dose–response curve independent of observer assessments. The researchers also ...

Additionally, a generalized additive model (GAM) was employed to fit the dose-response curve. The characteristics of the fitted smooth curve guided the application of a two-part logistic regression ...

Stylized curves that illustrate the linear, threshold, and hormetic dose-response models for carcinogens. The central pillar upon which toxicological assessments are built is the dose-response ...