President Masoud Pezeshkian expressed sympathy for protesters’ economic pain, but said the state must respond to “rioters.” Rights groups reported a big spike in the death toll. By Erika Solomon and ...

Explore a wide range of recent research in mathematics. From mathematical modeling to why some people have difficulty learning math, read all the math-related news here.

January 6, 2026 • Want to learn something new in the new year? Check out these deep-dive books from 2025 — nonfiction that will lead you to fresh discoveries about big tech, true crime and the ground ...

Functions and modules for creating metric (ISO) and English (UTS) standard screws and nuts. Included is a function for calculating the standard dimensions of screws including the tolerance values that ...

To help diagnose fibromyalgia, your healthcare provider will likely test for other diseases first. Fibromyalgia symptoms must last at least three months for diagnosis. Rheumatologists and neurologists ...

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