Stem cells in most organisms typically take cues from adjacent cells. But new research from the Stowers Institute for Medical Research reveals planarian stem cells ignore their nearest neighbors and instead respond to signals further away in the body. This discovery may help explain the flatworm’s extraordinary ability to regenerate — and could offer clues for developing new ways to replace or repair tissues in humans.

The trunks and branches of trees in Australia's tropical rainforests – also known as woody biomass – have become a net source of carbon dioxide to the atmosphere, according to a new international study.  

According to the team behind the Nature study, which includes experts from The Australian National University (ANU), Australia’s wet tropics are the first globally to show this response to climate change. The rising temperature, air dryness and droughts caused by human-driven climate change are likely the major culprits.

Facial self-touching — particularly around the nose, chin and cheeks — strongly correlates with elevated stress during cognitive tasks, new University of Houston research showed.

As an additive manufacturing technique enabling complex geometric fabrication, direct ink writing (DIW) has established itself as a cornerstone technology for flexible electronics production. However, the inherent filament deposition process introduces anisotropic texture surface morphologies. Systematic investigation into the causal relationship between these topographical features and device performance is imperative for advancing performance-optimized flexible sensor architectures.

Transfer hydrogenation (TH) emerges as a frontier in hydrogenation science for utilizing safe and available non-H₂ hydrogen sources. Single-atom catalysts (SACs), with maximal atom utilization, well-defined active sites, and tunable structures, are attractive heterogeneous catalysts for TH due to the superior performance, clear structure-performance relationship, and low cost. This review categorizes TH by hydrogen sources, exploring the correlation between SACs’ structural characters and catalytic behaviors as well as corresponding synthetic strategies toward the featured structures of SACs. It also discusses challenges/opportunities remained in the field of TH promoted by SACs, guiding the design of high-performance SACs for the environmental-friendly and cost-effective hydrogenation technology.