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Taking Sudoku Seriously: The Math Behind the World’s Most Popular Pencil Puzzle by Jason Rosenhouse and Laura Taalman
A look at the popular puzzles reveals the fundamental mathematical concepts at play. Oxford Univ., 2011, 226 p., $21.95
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Another Side to Statins
Heart-healthy drugs show promise against inflammation, cancer and the flu.
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Rock, Rattle and Roll
Planetary scientists seek to fill in gaps in outer solar system’s formative years.
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Aliens in Antarctica
Visitors carry unwelcome species into a once pristine environment.
- Health & Medicine
Neighborhood linked to obesity
Children living in areas that lack walking-distance parks and supermarkets are more prone to put on weight, new studies find.
- Life
Polar bears older than previously thought
New analysis reveals that the Arctic species dates back to about 600,000 years ago.
- Chemistry
Synthetic heredity molecules emulate DNA
Scientists have created six XNAs that, like the genetic building blocks they mimic, can store and pass on hereditary information.
- Health & Medicine
Attention tunes the mind’s ear
Brain activity shows how one voice pattern stands out from the crowd.
- Space
Hunt for cosmic ray source falls short
After failure to detect neutrinos from gamma-ray bursts, scientists might need to revise theories.
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