Until now, a global evaluation of ocean current energy with actual data was lacking. Using 30 years of NOAA's Global Drifter Program data, a study shows that ocean currents off Florida’s East Coast and South Africa have exceptionally high-power densities, ideal for electricity generation. With densities over 2,500 watts per square meter, these regions are 2.5 times more energy-dense than “excellent” wind resources. Shallow waters further enhance the potential for ocean current turbines, unlike areas like Japan and South America, which have lower densities at similar depths.

A combination of cosmic processes shapes the formation of one of the most common types of planets outside of our solar system, according to a new study led by researchers at Penn State.

Researchers from Science Tokyo have discovered that bacterial swarms transition from stable vortices to chaotic turbulence through distinct intermediate states. Combining experiments with bacterial swarms, computer simulations, and mathematical modeling, the team clarified the intricate process by which orderly swirling turns to disordered turbulence as the free space available to bacteria increases. These findings provide new insights into active matter physics and could inform future applications in micro-robotics, biosensing, and active fluid-based micro-scale systems.

Kathleen Stebe, Richer & Elizabeth Goodwin Professor in Chemical and Biomolecular Engineering (CBE), is tackling this challenge head-on with a collaborative group of researchers across five institutions under the support of a grant from the Department of Energy. Stebe is leading a groundbreaking research initiative that aims to create an eco-friendly, bioinspired process for separating REEs that would also avoid shipping semi-processed REEs to other countries for purification.

A new study has described a potential mechanism that could help explain why some proteins refold in a different pattern than expected. The researchers, led by chemists at Penn State, found that a type of misfolding, in which the proteins incorrectly intertwine their segments, can occur and create a barrier to the normal folding process. Correcting this misfold requires high-energy or extensive unfolding, which slows the folding process leading to the unexpected pattern first observed in the 1990s.

UofL Assistant Professor of Anthropology Kathryn Marklein co-authored a study that contradicts past literature about the stress markers and lifespans of female and male-presenting individuals, with new indications of resource disparities between the two. Marklein sheds light on how social and cultural factors — such as the preferential treatment of individuals presenting as males — have influenced health outcomes throughout history.  

Stanford researchers have combined machine learning with high-resolution satellite and airplane observations to understand the physics behind large-scale ice movements in Antarctica. The results show that current models are missing key complexity needed to accurately predict the dynamics and mass loss of the Antarctic ice sheet now and in the future.