Phys.org

Weak sea-surface temperature gradients may fuel stronger tropical cyclones

The fact that the ocean gets colder as you go deeper is fairly intuitive, but a similar gradient exists along the surface of the ocean, even at scales of 1 kilometer to tens of kilometers. A new study ...
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 ...
Phys.org

Scientists map the largest magnetic fields in galaxy clusters using synchrotron intensity gradient

In a new study, scientists have mapped magnetic fields in galaxy clusters, revealing the impact of galactic mergers on magnetic-field structures and challenging previous assumptions about the ...
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 ...
American Physical Society

Complex Dance of Light-Seeking Algae in Light Gradients

A population of photosynthetic algae has been shown to exhibit a highly nonlinear response to light, forming dynamic structures in light-intensity gradients. Figure 1: The single-celled green alga C.