News
- Health & Medicine
Pregnancy Alert: Proteins may predict preeclampsia
Blood concentrations of two proteins that affect blood vessel growth appear to foretell the pregnancy condition known as preeclampsia.
- Paleontology
Early 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.
- Tech
Snappy 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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Tailoring Therapies: Cloned human embryo provides stem cells
Scientists have for the first time carried test-tube cloning of a human embryo to the stage at which it can yield stem cells.
