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Science News for June 29, 2000


Electrical resistivity in metallic fullerenes

Scientists at Max-Planck Institute report strong violations of classical constraints on electron mean free path in metallic fullerenes, challenging the semi-classical approach. The study suggests that metallic behavior can occur with a mean free path less than atomic distance, indicating a breakdown of the semi-classical picture.

SourceMax-Planck-Gesellschaft·JournalNature·DateJun 29, 2000

New research animals earn their stripes

Zebrafish have revolutionized the study of brain development, revealing new genes that control the formation of nerve cells and the backbone. This breakthrough has significant implications for understanding human diseases such as Parkinson's, Alzheimer's, and spina bifida, which may be linked to incomplete embryonic development.

Penn researchers discover cause of kidney failure in diabetic mice

Researchers at the University of Pennsylvania School Medicine have discovered that the transforming growth factor-beta protein stimulates the development of sclerosis in the kidneys, leading to renal failure in diabetic mice. By neutralizing this protein, the study suggests that kidney disease in diabetes can be prevented.

SourceUniversity of Pennsylvania School of Medicine·JournalProceedings of the National Academy of Sciences·DateJun 29, 2000