New atomic clocks are more accurate than those used to define the second, suggesting the definition might need to change ...

Beginning around 2.5 million years ago, Earth entered an era marked by successive ice ages and interglacial periods, emerging ...

This important study uses advanced computational methods to elucidate how environmental dielectric properties influence the interaction strengths of tyrosine and phenylalanine in biomolecular ...

Data from the Centers for Disease Control and Prevention show there were about 107,000 drug overdose deaths in the United States in 2023. Of those, about 75%, or 81,000, involved opioids.

says the U.S. Department of Defense faces a vast array of technological obstacles to building an orbital shield that could effectively halt a mass launch of nuclear missiles. “The U.S. would ...

Social comparison theory is the idea that individuals determine their own social and personal worth based on how they stack up against others. The theory was developed in 1954 by psychologist Leon ...

Creative Commons (CC): This is a Creative Commons license. Attribution (BY): Credit must be given to the creator. Non-Commercial (NC): Only non-commercial uses of the work are permitted. No ...

Nano and Bioelectrochemistry Research Laboratory, Carbon Dioxide Research and Green Technology Centre, Vellore Institute of Technology, Vellore 632 014, India Department of Chemistry, School of ...

Feb. 26, 2025 — Researchers investigating the role of the protein CD44 in obesity and metabolic health found that CD44-deficient mice stayed lean even on a high-fat diet, while the control mice ...