The National Academies of Sciences, Engineering, and Medicine are private, nonprofit institutions that provide expert advice on some of the most pressing challenges facing the nation and world. Our ...

The GEOMEAN and HARMEAN are advanced statistical functions that typically require a deeper understanding of mathematics. This is probably why they aren't taught as often as the AVERAGE function.

At the informal European Council meeting, EU leaders discussed how to strengthen Europe’s defence, including defence capacities, support for the Eastern flank and governance. They also discussed ...

The amygdala is part of the limbic system, which regulates emotional and behavioral responses. An amygdala hijack is a fight-or-flight response to stress. To better understand what an amygdala hijack ...

Abstract: The adoption of the virtualization paradigm in both computing and networking domains portends a landscape of heterogeneous service capabilities and resources pervasively distributed and ...

We thank Dr. Jianzhi Zhang, Dr. Xionglei He, Dr. Weiwei Zhai, Shanshan Chen, Han Liu, Tianhan Wang, and three anonymous reviewers for valuable comments. This work was supported by the Strategic ...

Contributed by Mariana F. Wolfner; received May 29, 2025; accepted July 17, 2025; reviewed by John M. Belote and John P. Masly Asymmetry of paired organs has been observed across animal species, from ...

Exactly why people get atopic dermatitis, also called eczema, is still a bit of a mystery. While studying atopic dermatitis, researchers have made important discoveries. We know that this condition is ...

Nails grow slowly but continuously, ensuring old nail cells are replaced with new, healthy nails. Fingernails and toenails have the same structure and grow the same way. Nail growth and structure can ...

Powerful modern math library for PHP: Features descriptive statistics and regressions; Continuous and discrete probability distributions; Linear algebra with matrices and vectors, Numerical analysis; ...