Joan Birman popularized the Burau representation problem decades ago. Now she and two colleagues have a proof that reveals ...

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Every cell in the human body carries the same 3 billion letters of DNA, yet a neuron, a heart muscle cell and a pancreatic beta cell each use that shared code to do entirely different jobs. How cells ...

For decades, pathologists have diagnosed and graded breast cancer by looking at tissue samples under a microscope, searching ...