6,166 results
- Math
Generous Players
Game theory is helping to explain how cooperation and other self-sacrificing behaviors fit into natural selection.
- Health & Medicine
Old-fashioned circumcision can spread herpes
Boys whose ritual circumcisions involve an ancient, and now rare, practice may acquire herpes during the operation.
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Protein Portal: Enzyme acts as door for the SARS virus
A protein that regulates blood pressure also serves as the cellular portal for the SARS virus.
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Trash to Treasure: Junk DNA influences eggs, early embryos
A type of DNA once thought to be little more than genetic clutter may play a role in gene expression in mammalian eggs and newly formed embryos.
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Seek and Destroy: Virus attacks cancer, spares normal cells
A virus carried by mosquitoes naturally homes in on cancer cells and destroys them.
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Bubble Trouble: Mad cow proteins may hitch a ride between cells
Prions, the proteins behind mad cow disease, may travel between cells in bubbles called exosomes.
- Health & Medicine
HIV outwits immune system, again
The AIDS virus uses immune system proteins to hitch rides on the antibody factories known as B cells, possibly helping it find potential host cells.
- Health & Medicine
HIV drugs may stop cervical disease
A drug combination given to people with HIV, the AIDS virus, helps knock out precancerous cervical lesions in some women.
- Health & Medicine
Papillomavirus infections spike in sunny months
Getting sun could increase vulnerability to a sexually transmitted virus that may lead to cervical cancer.
- Health & Medicine
Four die of rabies in transplanted tissues
Four people who received tissue transplanted from a man who had died from an undiagnosed rabies infection have since themselves died from the same incurable neurological disease.
- Health & Medicine
Us against Them
New antibiotics may be valuable weapons in the fight against tougher bacteria.
- Humans
Bushmeat on the Menu
Studies of the bushmeat trade reveal that such meat appeals to people who can't afford anything else and to prestige seekers who certainly can.
