Uncategorized
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PlantsScientists Say: Xylem
How do trees ferry water from the soil to branches hundreds of feet in the air? This week’s word is the answer.
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Health & MedicineNews Brief: People shed clouds of tell-tale germs
Even after someone has left a room, a cloud of his or her germs laces the air, new data show. Watch out: That mix can be very individual — and even ID you!
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AnimalsCool Jobs: Finding new uses for nature’s poisons
Scientists study toxins and other natural compounds in search of alternatives to ineffective antibiotics and dangerous pesticides.
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ChemistryTrio gets chemistry Nobel for figuring out DNA repair
Three researchers have won the 2015 Nobel Prize in chemistry for working out how cells fix damaged genetic material.
By Meghan Rosen and Sarah Schwartz -
Health & MedicineStore-receipt chemicals taint blood and urine
Cashiers who handle receipts absorb potentially risky levels of chemicals that coat the receipts, a new study shows.
By Beth Mole -
PhysicsParticles that zip through matter snare Nobel
Two scientists won the 2015 Nobel Prize in physics for their discovery that neutrinos, particles that can pass through almost all matter, have mass.
By Janet Raloff and Andrew Grant -
Cooking up a Broadcom win
Students who improved microwave ovens and built calculating apps took home big awards at the 2015 Broadcom MASTERS.
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Health & MedicineFriends’ good moods can be contagious
Good mental health spreads through teen social networks, but depression doesn’t, a new study finds.
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Health & MedicineNobel goes for developing drugs from nature
The 2015 Nobel Prize in medicine went to scientists who used nature as the model for important human drugs to combat malaria and serious infections.
By Tina Hesman Saey and Laura Sanders -
AnimalsSperm whales’ clicks suggest the animals have culture
Sperm whales appear to learn the sounds they use to socialize. That suggests they have some form of culture.
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Health & MedicineAlcohol can rewire the teenage brain
Alcohol — especially binge drinking — can harm teens. New research shows teen drinking may leave a lasting legacy.
By Tara Haelle -
Materials ScienceScientists Say: Kevlar
Many people hear Kevlar and think of body armor. But this polymer is in so much more.