2,451 results
2,451 results for: mutations
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- Life
Ancestors of today’s placental mammals may never have shared the Earth with dinosaurs
A newly constructed family tree dovetails with the fossil record, but differs considerably from previous genetic studies by suggesting that placental mammals emerged after the dinosaur extinction.
- Health & Medicine
Baby may be cured of HIV
Only viral traces remain after prompt treatment of newborn, suggesting no working virus is left in the girl’s body.
- Animals
In the Eye of the Tiger
Global spread of Asian tiger mosquito could fuel outbreaks of tropical disease in temperate regions.
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- Humans
Greed may breed financial fitness, but evolution allows unselfishness to survive
If greed is good, as Gordon Gekko proclaimed in the 1987 movie Wall Street, then economics ought to be a superlative science. After all, at the core of economic theory sits a greedy idealization of human nature known as Homo economicus. It’s a fictitious species that represents the individual economic agent, motivated by selfishness. H. […]
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Letters
Redesigning flu mortality In “Designer flu” (SN: 6/2/12, p. 20), researcher Michael Osterholmis quoted as saying that even if the actual kill rate of H5N1 is 20 times lower than the current estimate of 59 percent, H5N1 would still have a mortality rate that “far exceeds” that of the 1918 flu. Wikipedia gives a 1918 […]
- Health & Medicine
Experimental malaria drug may be a hot prospect
A synthetic compound attacks the parasite at three stages of infection, early tests show.
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- Neuroscience
Hurt Blocker
The next big pain drug may soothe sensory firestorms without side effects.
- Life
Pressure keeps cancer in check
In lab experiments, physically confining malignant cells prevents runaway growth.
- Health & Medicine
2013 American Association for Cancer Research meeting
Highlights from the annual AACR meeting include ovulation’s impact on cancer risk and an experimental drug’s promising performance against leukemia.
