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Proceedings of the National Academy of Sciences

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Social contagion: Conflicting ideas
Apr 3rd 2012, 1:14 from Babbage
Ideas and diseases spread differently(12)
The evolution of generosity: Welcome, stranger
Jul 27th 2011, 5:30 from Print edition
The human impulse to be kind to unknown individuals is not the biological aberration it might seem(29)
The science of justice: I think it's time we broke for lunch…
Apr 14th 2011, 10:51 from Print edition
Court rulings depend partly on when the judge last had a snack(22)
Emerging infections: No good deed goes unpunished
Sep 2nd 2010, 10:46 from Print edition
Smallpox has gone, but monkeypox is now rearing its ugly head(0)
Surgical technology: The new face of surgery
Jul 15th 2010, 10:43 from Print edition
A high-tech engineering technique offers promise to reconstructive surgery(7)
Voting and sports: Pigskin politics
Jul 8th 2010, 9:41 from Democracy in America
The electoral effect of winning sports teams(11)
Tyrannosaurs: Selling bones
Oct 8th 2009, 10:47 from Print edition(1)
Unhealthy showers: The joy of bathing
Sep 17th 2009, 11:59 from Print edition
A new study finds that nasty bugs can live in showerheads(5)
Women, testosterone and finance: Risky business
Aug 26th 2009, 12:45 from Print edition
Hormones, not sexism, explain why fewer women than men work in banks(18)
The earliest granaries: Food for thought
Jun 25th 2009, 11:45 from Print edition
Storing grain predates agriculture, and may have propelled it(6)
Tool use by non-tool-using animals: Sticks and stones
May 28th 2009, 11:44 from Print edition
Rooks, which do not use tools in the wild, can make and use them in the lab(10)
Pre-Cambrian life: The dawn of the animals
Apr 8th 2009, 11:52 from Print edition
Which came first, the eggs or the algae?(15)
Testosterone and traders: Goldfingers
Jan 15th 2009, 10:14 from Web-only article
How traders' testosterone levels affect their income(31)
Greenhouse gases: Eating carbon
Nov 13th 2008, 12:06 from Print edition
There is a type of rock with a voracious appetite for carbon dioxide(34)
Biodiversity: Forest-friendly farming
Nov 6th 2008, 12:06 from Print edition
“Betel nuts” show one way to mix crops and conservation(10)
Behaviour: Victory is mine
Aug 14th 2008, 11:49 from Print edition
Displays of pride and shame are hard-wired(9)
Forensic science: Telltale hairs
Feb 28th 2008, 1:29 from Print edition
You can tell where someone has been from his hair(0)
Evolutionary psychology: More news from the savannah
Sep 27th 2007, 12:08 from Print edition
People seem to have “animal-monitoring modules” in their brains—which is bad news for road safety(0)
Biological clocks: Want to know the time? Ask a fungus
Feb 15th 2007, 12:36 from Print edition
Working out how biological clocks operate has been a hard graft. The results, though, may boost the new technology of synthetic biology(0)
Altruism: The joy of giving
Oct 12th 2006, 12:48 from Print edition
Donating to charity rewards the brain(0)
Scientific publishing: Creative destruction in the library
Jun 29th 2006, 1:13 from Print edition
Free access to research is proving more expensive than hoped. But it is spreading, nevertheless(0)
Mad-cow disease: Oh no, not again
Feb 19th 2004, 12:15 from Print edition
A new prion disease may have been discovered in cows(0)
Nicotine and Alzheimer's disease: Lighting up time?
Jun 19th 2003, 12:48 from Print edition
A chemical derived from nicotine may protect against dementia(0)
Bugs and superbugs
Apr 2nd 1998, 12:00 from Print edition(0)
Jan 1st 1970, 12:00 from Print edition