Scientists built a new theoretical model that learns from interactions. Positive interactions strengthened connections, and negative interactions weakened connections. Model revealed that strong connections can lead to feedback loops and echo chambers. Findings extend to diverse spreading systems, from social ideas to infections to animal behavior to neural signals.

Scientists have captured the most detailed structural images to date of a specific type of protein’s DNA repair process, a finding that could reveal ways to inhibit the effects of BRCA1 and BRCA2 mutations that heighten the risk for breast, ovarian and other cancers.

As cities sprawl into suburbs and exurbs, the distinction between urban areas and the countryside has become increasingly blurry. A new paper published in npj Urban Sustainability proposes that many modern landscapes can be managed more holistically when they are understood as a mixture of urban, rural, and wild features.

Data from Fitbits show that changing time twice a year does not affect people’s overall step counts but does impact when they are getting their steps in.