Researchers grow cells in 'paper organs'

Long before scientists test new medicines in animals or people, they study the effects of the substances on cells growing in Petri dishes. However, a 2-D layer of cells is a poor substitute for the much more complex 3-D structure ...

Droplet trains reveal how nature navigates blood traffic

Nearing a decision point, online traffic maps recommend a less-crowded route over the other ways with several slow spots. For most of us, the choice seems clear. Still, have you ever wondered whether this collectively preferring ...

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