5,519 results
- Chemistry
New champions among corrosive microbes
Newly discovered strains of bacteria have developed a metabolic shortcut for eating away iron with great efficiency.
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The tree of life, with tangled roots
Two ancient, rudimentary organisms merged to create the first complex cell, new data suggest.
- Tech
Growing Expectations
Biofuels made from waste agricultural plant matter are gaining prominence as new technologies make them increasingly competitive with petroleum fuels.
- Materials Science
Something to Chew On
Researchers are closer than ever to making synthetic enamel to improve dental implants and perhaps to grow a whole tooth from scratch.
- Health & Medicine
Pathogenic partners prompt pneumonia
A study of infants has shown that bacterial and viral pathogens may act together in causing pneumonia, a finding that could affect treatment options.
- Health & Medicine
Is penicillin-allergy rate overstated?
A study finds that 20 of 21 people who reported having a penicillin allergy when filling out paperwork during a hospital visit in fact don't have one, suggesting that the prevalence of this allergy is overstated.
- Math
Armor-Plated Puzzle
Behind the beautiful patterns of many viral shells lie principles of pure physics and mathematics that scientists have illuminated in recent theoretical studies.
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Glowing Trio under the Sea: Nitrogen fixer joins algae inside coral
A coral that fluoresces orange appears to be the first ever found to contain a symbiotic microbe that converts nitrogen into a biologically useful form.
- Animals
Myth of the Bad-Nose Birds
Even though a lot of people still believe birds have no sense of smell, certain species rely on their noses for important jobs, such as finding food and shelter, and maybe even a mate.
- Humans
Letters from the November 13, 2004, issue of Science News
The direct approach “An Exploitable Mutation: Defect might make some lung cancers treatable” (SN: 9/11/04, p. 164: An Exploitable Mutation: Defect might make some lung cancers treatable) may have missed a “magic bullet” that would be effective against many forms of cancer. The researchers concentrate on a drug that blocks a mutated form of the […]
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Bulletproof bacteria
Bacteria can survive being blasted into space.
- Health & Medicine
Nicotine’s Good Side: Substance curbs sepsis in mice
Nicotine halted the progression of severe sepsis in mice, suggesting a new avenue for treating this acute blood infection.
