Uncategorized
- Health & Medicine
Blending In: Dissolvable stents promise to protect arteries
A biodegradable magnesium stent props open clogged blood vessels and then dissolves, circumventing the problems linked to permanent metal stents.
- Anthropology
Chicken of the Sea: Poultry may have reached Americas via Polynesia
Polynesians may have traveled back and forth to South America more than 600 years ago, introducing chickens to the Americas in the process.
-
19842
This article states, “The most likely sea route ran north of Hawaii and down America’s Pacific coast.” The Polynesians were master mariners, so anything is possible, but continuing east from Tonga to South America is an extension of the main voyaging area, whereas Hawaii is well off this beaten path. Tom MallardPhoenix, Ariz.
- Tech
Nanotech bubbles
Creating large-scale, regular arrays of nanoscale components is now almost as easy as blowing bubbles.
- Chemistry
In a Fix: Agricultural chemicals disturb a natural relationship
Several pesticides can disrupt a partnership that enables certain plants to take up nitrogen by enlisting the help of bacteria.
- Health & Medicine
Guilt by Association: Whole-genome scans yield disease clues
In a sweeping demonstration of the power of the new biology, researchers have linked two dozen genetic variations to six major diseases.
- Health & Medicine
Animal-to-human diseases could be right at home
A new map of where SARS or Ebola might erupt next highlights North America and Western Europe as likely sources.
- Health & Medicine
Beware the bats
Fruit bats in Bangladesh regularly trigger small outbreaks of Nipah virus, a measleslike pathogen that causes brain inflammation and death.
- Health & Medicine
Phages break up plaques
Phages, viruses that infect bacteria, dissolve plaques in the brains of mice with an Alzheimer's-like disease.
- Health & Medicine
Sticky treatment for staph infections
Honey from New Zealand gums up bacteria, offering a potential new means of combating difficult-to-treat infections.
- Astronomy
Crash will determine solar system’s fate
The solar system already lies in the suburbs of the Milky Way, but the sun and its planets will be yanked even farther away about 5 billion years from now.
- Earth
Guidelines for wind farms
National policies to maximize the benefits of wind farms while lessening their environmental impacts may be needed.
