News
- Health & Medicine
Lingering Loss: In 2-year diet trial, new pill keeps off weight
Obese adults who lose weight during a year of taking an experimental diet drug, rimonabant, and dieting keep the weight off during the following year, if they continue the regimen.
- Health & Medicine
Problems for Preemies: Early birth is linked to insulin overproduction
Children born prematurely are more likely than their full-term counterparts to develop insulin resistance, a marker for diabetes.
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Unhealthy Change: Diversity in a bacterial colony can prolong infections
Bacteria that live in biofilms can diversify into several different types, making infections harder to treat.
- Tech
Lighthearted Transistor: Electronic workhorse moonlights as laser
A versatile new transistor amplifies electricity and emits a laser beam.
- Chemistry
Busy Beads: Magnetic dust takes droplets for a ride
With a bit of dust and a magnet, chemists can shuttle drops around on a surface, an advance that could lead to chemistry labs on a chip.
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Profiles in Melancholy, Resilience: Abused kids react to genetics, adult support
Abused and neglected children who possess two copies of a gene that affects brain chemistry develop depression at an elevated rate only if they also lack support from at least one adult.
- Materials Science
New lithium battery design charges up
Researchers have developed a new, safer type of electrode for lithium batteries.
- Materials Science
A hard new material with a soft touch
Adding exotic substances called quasicrystals to polymers creates nonabrasive hard materials, which could soon serve as coatings in machine parts.
- Health & Medicine
Trials affirm value of drug
The drug STI-571, previously shown to work against chronic myelogenous leukemia, also helps patients who have slipped into an acute, highly lethal form of this cancer.
- Health & Medicine
Old and new drugs may fight myeloma
In some people with a bone marrow cancer called multiple myeloma, treatment with thalidomide or PS-341, which induces programmed cell death, may improve their chances of survival.
- Materials Science
Nanotubes: Knot just for miniature work
A new technique can spin individual nanotubes into durable ribbons and threads visible to the naked eye.
- Materials Science
Nanotubes get as small as they can
Two research teams have created stable carbon nanotubes with the smallest diameter that scientists believe is physically possible, at just 0.4 nanometer across.
