Uncategorized
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Math
Good Stories, Good Math
Young children who show sophisticated story-telling skills go on to demonstrate greater mathematical ability.
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Humans
From the November 6, 1937, issue
Giant electrical generators take shape in Pittsburgh, astronomers puzzle over unusual stellar spectra, and a dinosaur ancestor from Texas visits Harvard.
By Science News -
Humans
Where’s the Fire?
The National Interagency Fire Center tracks big wildfires blazing around the United States and identifies—via its InciWeb—which ones are contained, along with running totals for acres scorched so far this year. The site offers tables of multi-year fire records, interesting stats, as well as maps of current outbreaks. Go to: http://www.nifc.gov/fire_info.html
By Science News -
Animals
Mr. Not Wrong: Not my species? Not a problem
Female toads that accept mates of another species in tough times may be looking after their own interest.
By Susan Milius -
Ladies First: Genes skew sex ratios in evolutionary struggle
A gene in fruit flies favors the birth of females, until another gene comes along to restore balance between the sexes.
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Earth
Yellowstone Rising: Magma floods into chamber beneath park
Some parts of the terrain in Yellowstone National Park have been rising as much as 7 centimeters per year as molten rock wells up beneath the park.
By Sid Perkins -
Not Like Clockwork: High-fat diet disrupts daily routines of mice
Fatty diets disrupt the sleep and metabolic cycles of mice by changing the activity of genes.
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Agriculture
Silencing Pests: Altered plants make RNA that keeps insects at bay
Engineered plants make genetic material that disables critical genes in insects that eat the plants, offering a possible new strategy for agricultural-pest control.
By Sarah Webb -
Astronomy
Ray Tracing: Energetic cosmic rays linked to giant black holes
New observations suggest that ultrahigh-energy cosmic rays originate in the cores of nearby galaxies harboring supermassive black holes.
By Ron Cowen -
Smarty Gene: Breast-fed kids show DNA-aided IQ boost
Breast-feeding substantially boosts children's intelligence, but only if the youngsters possess a specific version of a gene involved in processing mothers' milk.
By Bruce Bower -
Doing the DNA shuffle
DNA near the ends of people's chromosomes shows surprisingly large differences from the corresponding DNA in other great apes.
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Health & Medicine
Nongene DNA boosts AIDS risk
People with a newly discovered genetic variation are more vulnerable to HIV infection.