News
- Materials Science
X Rays to Go: Carbon nanotubes could shrink machines
A new type of X-ray machine operates at room temperature by producing X-ray-generating electrons with carbon nanotubes instead of traditional heated metal filaments.
- Health & Medicine
Sex, smell and appetite
A study of sexual dysfunction in mutated mice may help explain the connection between smell and appetite.
- Health & Medicine
Hunger hormone gone awry?
People with an inherited form of obesity caused by constant hunger pangs have higher-than-normal blood concentrations of ghrelin, a hormone believed to boost appetite.
- Physics
Twice-charmed particles spotted?
Exotic cousins of protons and neutrons known as doubly-charmed baryons may have made their laboratory debut.
- Agriculture
Killer bees boost coffee yields
Even self-pollinating coffee plants benefit substantially from visits by insect pollinators.
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Caregivers take heartfelt hit
Older persons experience elevated systolic blood pressure for at least 1 year after a spouse with Alzheimer's disease enters a nursing-care facility or dies.
- Materials Science
Spring in your step? The forces in cartilage
Researchers are uncovering the role of molecular forces in cartilage's ability to resist compression.
- Health & Medicine
Appetite-suppressing drug burns fat, too
An experimental drug seems to assail obesity through dual biological actions.
- Chemistry
Ions on the Move: Theory of hydroxide’s motion overturned
New computer calculations reveal that a long-held belief about the hydroxide ion's movement in water is wrong.
- Health & Medicine
Diabetes problems aren’t just old news
Children who developed a type of diabetes that normally occurs only in adults suffer kidney failure, miscarriages, and death in their 20s.
- Health & Medicine
Autopsies suggest insulin is underused
Autopsy studies indicate that the insulin-producing cells of people with type II diabetes are damaged.
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Autism leaves kids lost in face
Brain-wave evidence indicates that 3- to 4-year-old children diagnosed with autism can't tell their mothers' faces from those of female strangers.
