News
- Health & Medicine
Cells in heart can regenerate dead tissue
Stem cells in heart tissue that has survived a heart attack can be prodded to regenerate dead portions of the injured organ.
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Bacterial tresses conduct electricity
New research suggests that several species of Geobacter bacteria use hairlike structures known as pili to move electrons.
- Earth
Growth Slumps: Melting permafrost shapes Alaskan lakes
A new model suggests that some fast-growing, egg-shaped lakes in Alaska expand when their permafrost banks melt and slump in tiny landslides.
- Chemistry
Striking Oil: High-pressure processing minimizes trans fats
Improvements in the techniques used to hydrogenate vegetable oils could soon fill store shelves with food products containing smaller percentages of unhealthful trans fats.
