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TechProposed quantum motor runs with a kick
Scientists suggest a way to put ultracold atoms to work.
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EarthWhite House releases report on climate change
A new White House report addresses current and projected impacts of climate change across the United States.
By Sid Perkins -
Health & MedicineGene plus stress equals depression debate
A reanalysis of data challenges a prominent report that a particular gene variant interacts with stressful experiences to promote depression, sparking controversy.
By Bruce Bower -
Health & MedicineCT scan nearly as good as regular colonoscopy
Virtual colonoscopy might suffice for people at high risk of colorectal cancer, a new study finds.
By Nathan Seppa -
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LifeEstrogen may reprogram prostate cancer gene in black men
Study finds a lack of chemical tags near a prostate cancer gene in African American males.
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ArchaeologyEngraved pigments point to ancient symbolic tradition
Analyses of patterns incised on pieces of ancient pigment indicate that people in southern Africa passed along symbolic practices from 100,000 to 75,000 years ago, scientists say.
By Bruce Bower -
Health & MedicineOrigins of the swine flu virus
Researchers use evolutionary history to trace the early days of the pandemic.
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Health & MedicineStomach surgery helps obese adolescents
Laparoscopic banding surgery to limit appetite improves several health markers in obese adolescents.
By Nathan Seppa -
ChemistryLaser makes uphill battle easier
Researchers have used a femtosecond laser to etch tiny channels into metal plates, prompting liquid to flow uphill.
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Health & MedicineReplacing microRNA for cancer treatment
Replacing missing microRNAs in cancer cells may open up a new field for cancer treatment.