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May
2000 Issue- Science and the Citizen What's the Matter?
- From the Editors Africa's Suffering
- Connections What a Nerve
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May
Stranger in a New Land: Overview / The First Colonizers
How long can humans stay awake?
Human evolution appears to be associated with a trend toward greater
intelligence. Is there a discernible trend toward greater intelligence in other
species as well? And if cognitive ability confers an evolutionary advantage, why
are humans (apparently) so unique in this trait?
Innovation is the key to a better future. Enter your own World Changing Ideas videos in our contest. For examples, see "World Changing Ideas," Scientific American; December 2009.
What's Next for AIDS: New Approaches for Tackling HIV in the Developing WorldThe surprise success this summer of a clinical trial on an antiretroviral-based vaginal microbicide provides new traction for efforts to combat AIDS in the developing world. Here are some new directions to expect for treatment and prevention of this widespread killer