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Health & MedicineGlutamate glut linked to multiple sclerosis
The chemical glutamate can overwhelm nervous-system cells called oligodendrocytes, adding to the nerve damage caused by wayward immune cells in multiple sclerosis.
By Nathan Seppa -
PhysicsElectrical superball pulls itself together
A strong electric field can drive tiny particles of a superconductor to bind themselves together into a remarkably sturdy ball.
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Blood cues sex choice for parasites
Malaria parasites shift their female-biased production of offspring toward a more evenly balanced sex ratio as an infection proceeds.
By John Travis -
19010
This article describes the myelin sheath as “made of protein.” However, Merriam-Webster’s Collegiate Dictionary (online) provides the following definition of myelin: “a soft white somewhat fatty material …” (emphasis added).