Uncategorized
- Chemistry
Gene dispensers
A new gene therapy technique releases genetic material from successive nanoscale layers of DNA as sheets of polyester that hold them in place slowly degrade.
- Materials Science
Color-tunable sunglasses
Engineers have developed sunglasses that can change from dark, filtering hues to clear—and back—at the flip of a switch.
- Health & Medicine
New agent to spy clogged arteries
To improve the detection of harmful arterial plaques, researchers have modeled a nanoparticle on a natural material: good cholesterol.
- Chemistry
Enzymes release caged chemicals
A new controlled-release technology relies on enzymes to unshackle a chemical only when and where it's needed.
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19819
I was interested to read in this article that running portable generators caused carbon monoxide poisoning, presumably by improper fuel burning. A good solution to this problem is to use a generator that is designed for much lower emissions. I use my Toyota Prius as an emergency generator that can power my house! It can […]
- Health & Medicine
Even outdoors, generators pose risks
Portable electricity generators are frequently the culprit in domestic carbon monoxide poisonings—even when the devices sit outside the home.
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Rats take fast route to remembering
Rats use background knowledge about what they have already learned to remember relevant new material surprisingly quickly.
- Health & Medicine
Augmenting the good cholesterol
A reconstituted version of good cholesterol may lessen the amount of plaque that accumulates in arteries and render existing plaque less dangerous.
- Planetary Science
Cavernous findings from Mars
Images taken by a Mars-orbiting spacecraft show what appear to be caves on the Red Planet.
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Faster, Cheaper, Better
Methods now under development could make DNA sequencing quicker and less expensive, paving the way for the day when treatments can be tailored to each person's genetic profile.
- Materials Science
Taken for a Spin
Considering silk from the spider's perspective may offer the best chance of replicating these creatures' tough threads.
- Humans
Letters from the April 14, 2007, issue of Science News
Heated comments I am disappointed in your article on the latest Intergovernmental Panel on Climate Change (IPCC) summary (“From Bad to Worse: Earth’s warming to accelerate,” SN: 2/10/07, p. 83). It was a political summary, not the 1,500 page report that’s due in May 2007. How often have you seen a scientific summary published 3 […]
