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Science News for May 18, 2000


Bone produced from skin and gum tissue

Scientists at the University of Michigan School of Dentistry have developed a method to create bones from skin and gum tissue cells, which can be used to replace missing bone in living rats. The engineered cells not only deliver bone-forming proteins but also participate directly in bone formation.

SourceUniversity of Michigan·JournalHuman Gene Therapy·DateMay 18, 2000

Stripes or no stripes?

Scientists report evidence that high-temperature superconductivity in copper oxides is linked to two-dimensional spin excitations, contradicting the long-held idea that stripes are responsible. This finding sheds new light on the mechanism behind this phenomenon.

SourceMax-Planck-Gesellschaft·JournalScience·DateMay 18, 2000