Researchers have developed a copolymerization technique that alternates carbon dioxide with bicycloalkane to create circular polyesters. These polyesters can be chemically recycled back to their original monomers, offering a sustainable approach to plastic production and reducing reliance on fossil fuels. This breakthrough could advance the design of fully recyclable materials with closed-loop life cycles.
Archaeologists have discovered 40,000-year-old bird carvings that provide new clues about how ice age humans adapted and flourished. The intricate engravings suggest advanced cognitive and social behaviors, offering insights into survival strategies during harsh climates. This finding challenges previous assumptions about early human innovation and resilience.
Two drugs have been found to reduce the risk of developing long COVID in clinical trials, offering the first potential preventive treatments. The findings, reported in Nature, could significantly impact millions suffering from persistent symptoms after COVID-19. This marks a critical step in addressing a major unresolved aspect of the pandemic.
Global health experts warn that polio may return in force if eradication efforts are not finished quickly. The disease has been driven to near extinction, but incomplete vaccination campaigns and surveillance gaps risk reversing decades of progress. Continued international commitment is essential to prevent a resurgence that could paralyze thousands.
A remote island has successfully eliminated an invasive rat population after a long and intensive eradication campaign. Conservation officials believe the rats are gone, restoring the island's ecosystem and protecting native bird species. This success could serve as a model for similar efforts worldwide.
Scientists have developed an entirely new type of drug that can target conditions previously considered untreatable. This breakthrough could open up treatment options for a wide range of diseases that have resisted conventional therapies. The innovation represents a significant advance in medicine.
Scientists and health organizations are urgently working to develop an effective Ebola vaccine as the outbreak intensifies. The race is driven by rising case numbers and the need to contain the spread. Timely vaccine development could be critical to saving lives and preventing a wider public health crisis.
A new analysis highlights that medical AI research frequently lacks rigorous measurement standards, leading to overblown claims about performance. This measurement problem undermines trust and could delay safe clinical adoption of AI tools.
Scientists report that arid regions are experiencing flash floods on a scale never recorded before, driven by shifting weather patterns and climate change. These floods upend desert ecosystems, endanger communities, and challenge existing water management strategies. The findings highlight a dramatic shift in desert hydrology with far-reaching consequences.