Uncategorized
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Cells’ Root: Adult stem cells have a master gene
Scientists have found a master gene that allows tissue-regenerating stem cells to retain their regenerative capacity.
- Astronomy
Stellar Spectacular: Brightest supernova
Astronomers have discovered the brightest stellar explosion ever observed, and it could be the first example of a rare type of supernova involving a freakishly massive star.
By Ron Cowen -
19830
Perhaps there need not be “degrees of quantumness”. As the beams pass increasingly closer to the surface, the plate will induce a small (but increasingly larger) spread of energies (hence wavelengths) in the electrons within the beam, possibly explaining the “smearing out” of the fringes in the interference pattern. Michael D. MeloySanta Barbara, Calif. Peter […]
By Science News - Physics
Degrees of Quantumness: Shades of gray in particle-wave duality
Light can be made to act as if it's composed of particles, waves, or something in between.
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No Place Like Om: Meditation training puts oomph into attention
Intensive meditation training boosts a person's control over attention and expands a person's ability to notice rapidly presented items.
By Bruce Bower - Health & Medicine
Risk Factor: Throat cancer linked to virus spread by sex
Cancer of the throat and tonsils can arise from infection with a sexually transmitted virus.
By Nathan Seppa - Humans
Lethal injection is inhumane, say researchers
Prisoners killed by lethal injection may be conscious and experience pain and burning sensations while they asphyxiate.
By Brian Vastag - Animals
Sex—perhaps a good idea after all
A family of mites may be the first animal lineage shown to have abandoned sexual reproduction and then reevolved it millions of years later.
By Susan Milius - Health & Medicine
A smart pill for seniors?
A dietary supplement combo boosts older adults' performance on simple mental tests.
By Janet Raloff - Health & Medicine
This trick boosts cancer’s spread
A compound that helps keep cells organized and stitched into tissues may play a role in the survival of cancer cells that have seeded distant tissues in the body.
By Janet Raloff -
Cancer patients aided by yoga
In breast cancer patients, practicing yoga appears to reduce both depression and biochemical markers of inflammation.
By Janet Raloff -
Alzheimer’s marker yields blood test
Studies in mice suggest that it could be possible to screen blood for early, asymptomatic Alzheimer's disease.
By Janet Raloff