BMJ

Can quantifying the relative intensity of a person’s free-living physical activity predict how they respond to a physical activity intervention? Findings from the PACES RCT

Objectives To determine whether quantifying both the absolute and relative intensity of accelerometer-assessed physical activity (PA) can inform PA interventions. We hypothesised that individuals ...
BMJ

Quantifying the relative intensity of free-living physical activity: differences across age, association with mortality and clinical interpretation—an observational study

Objectives To describe age-related differences in the absolute and relative intensity of physical activity (PA) and associations with mortality. Methods UK Biobank participants with ...
Labroots

Enabling Scalable and Reproducible Ultracentrifugation Through Automated Gradient Preparation

While density gradient ultracentrifugation (DGUC) remains a gold standard for high-resolution purification, traditional workflows are challenged by labor intensity, variability, and limited ...
Optics

Laser cooling takes the heat out of optical tweezers

Optical tweezers are a versatile way to trap and manipulate particles and untethered biological cells, exploiting the intensity gradients that can be created by focused lasers. One problem, however, ...