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Health & MedicinePregnancy Alert: Proteins may predict preeclampsia
Blood concentrations of two proteins that affect blood vessel growth appear to foretell the pregnancy condition known as preeclampsia.
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PaleontologyEarly Flight? Winged insects appear surprisingly ancient
New analyses of a fossil suggest that winged insects may have emerged as early as 400 million years ago.
By Sid Perkins -
TechSnappy DNA: Long strand folds into octahedron
By harnessing the self-assembling properties of DNA, researchers coerced a single strand of the genetic material to assume the shape of an octahedron.
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This article details an advance in human-cloning efforts.