5,615 results
5,615 results for: Bacteria
- Health & Medicine
Vaccine Power: Immune cells target cancerous tissue
Researchers are enlisting a person's own immune system to attack prostate tissue, including cancerous cells.
- Earth
Scientists spy sixth undersea-vent ecology
A new group of hydrothermal vents found in the Indian Ocean are populated by communities of organisms that differ significantly from other such groups of vent systems.
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Bacterial cells reveal skeletal structures
The finding of a cytoskeleton in Bacillus subtilis bacteria eliminates a fundamental difference between bacteria and higher (eukaryotic) cells.
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The Meaning of Life
Computers are unscrambling genomes to reveal the secrets in DNA codes.
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18932
Please explain a curious statement in “A more perfect union.” The article paraphrases Jonas Sandstrom of Uppsala University in Sweden as suggesting that an “endosymbiont’s isolation may be a one-way ticket to extinction. Once the bacterium loses genes . . . it has no way of getting them back. It can’t, therefore, evolve away from […]
- Animals
Microbe lets mite dads perform virgin birth
A gender-bent mite—in which altered males give birth as virgins—turns out to be the first species discovered to live and reproduce with only one set of chromosomes.
- Health & Medicine
Mice reveal the off switch for inflammation
Working with genetically engineered mice, scientists have identified a crucial natural mechanism that rodents use to shut down inflammation before it does harm.
- Planetary Science
Debate over life in Mars rock rekindles
Two recent studies could inject new life into the argument that a 4-billion-year-old Martian meteorite contains fossils of bacteria from the Red Planet but several scientists say the reports fall short of resurrecting that notion.
- Health & Medicine
Germ-killing plastic wrap
Biodegradable plastic that releases germ killers provides an example of what’s known as active packaging, and scientists report progress toward taking this concept to market. Paul Dawson and his colleagues at Clemson (S.C.) University are fashioning plastics from proteins found in corn, soy, and wheat. While these biodegradable polymers are being heated or compressed to […]
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- Earth
Landfills Make Mercury More Toxic
Landfill disposal of mercury-containing products can chemically transform the pollutant not only to make it more potent but also to foster its release into air.
- Health & Medicine
‘Bug’ spray cuts risk of ear infection
Spraying “good” bacteria into the nose reduced the incidence of ear infections in children especially prone to such infections.
