5,520 results
5,520 results for: Bacteria
- Tech
Taming High-Tech Particles
Researchers are beginning to study whether nanomaterials could have unintended negative consequences in the human body or the environment.
- Chemistry
Wee dots yield rainbow of molecule markers
Chemists report a scheme for creating a versatile color-based tagging system out of tiny atomic clusters, called quantum dots, that may enable scientists to track biomolecules with more finesse than ever.
- Ecosystems
Tadpole Science Gets Its Legs . . .
The amazingly complex tadpole now shines in ecological studies.
- Health & Medicine
Berry Colorful Nutrition News (with recipes)
Ah, raspberries. So sweet, so delicate on the tongue, so ephemeral. Oregon Raspberry and Blackberry Commission Isolated pigments from the four raspberries tested. Liu/Cornell Oregon Raspberry and Blackberry Commission Every year, I unsuccessfully defend my raspberries against squirrels, birds, and beetles. As I watch the fruit begin to ripen, so do the neighborhood creatures. Two […]
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Infection divides two wasp species
Two tiny wasp species provide the best evidence yet that infection by Wolbachia bacteria can play a role in forming species.
- Health & Medicine
Aerial War against Disease
Researchers around the world are catching on to the idea of using satellites to predict where diseases may strike.
- Chemistry
New solution for kitchen germs
Cooking will kill almost any microbe. But when it comes to serving raw foods, such as the vegetables in a garden salad, neutralizing germs with heat is not an option and washing the greens doesn’t reliably disinfect. Although raw produce can be sanitized in a bath of dilute bleach, a team of Georgia scientists is […]
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Science News of the Year 2001
A review of important scientific achievements reported in Science News during the year 2001.
- Health & Medicine
Surveying the Swiss: The eyes have it
Magnetic resonance imaging can help determine the health of a wheel of cheese.
- Earth
Toxic runoff from plastic mulch
By laying sheets of plastic across their fields, farmers can bring crops to market faster while reducing their vulnerability to many blights (SN: 12/13/97, p. 376). On the negative side, however, this polymer mulch creates impermeable surfaces over more than half of a planted field. That significantly increases the amount of rain and pesticides that […]
- Health & Medicine
Drink Those Antioxidants
Mention antioxidants and most people will immediately think of vitamins–typically C and E–usually in the form of mega-dose capsules available at the local drug store. However, a new study finds that many common beverages also deliver a healthy antioxidant serving. R. Savidge These beverages may give some protection against the ravages of oxidizing chemicals that […]
- Health & Medicine
Novel typhoid vaccine surpasses old ones
A new vaccine links a sugar molecule found on the surface of the bacterium that causes typhoid fever with a genetically engineered version of the exotoxin protein, which arouses the immune system to churn out antibodies against the bacterium.
