News
- Tech
Litmus test gets tiny
When zapped by a laser, new, light-sensitive nanobaubles could provide a reading of pH, or how acidic or basic a solution is, even from deep inside living cells.
- Health & Medicine
Obesity correlates with psychiatric disorders
Obese adults are 25 percent more likely than normal-weight adults to develop one of four mood or anxiety disorders.
- Paleontology
Rarity of fossils of young tyrannosaurs explained
Paleontologists have unearthed only a few juvenile tyrannosaurs, and a new study suggests why: A large percentage of these meat-eating dinosaurs, unlike many other creatures, survived into adulthood.
- Health & Medicine
Device spots sponges left behind
A device that uses radiofrequency identification can detect tagged sponges left in patients undergoing surgery.
- Chemistry
Old drug, new use
By screening a library of more than 2,000 existing drugs, researchers have identified an antihistamine that shows activity against malaria.
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Bullying leaves mark on kids’ psyches
Being victimized by bullies at school between ages 5 and 7 promotes a unique set of behavioral and emotional problems in children, regardless of any such problems that they had before entering school.
- Health & Medicine
Male circumcision could avert millions of HIV infections
Mass circumcision of boys and men in sub-Saharan Africa could avert 2.7 million new cases of HIV infection over the next decade.
- Astronomy
Recurrent Eruption: Explosive stellar saga
Six thermonuclear explosions have ripped off the outer layers of a dense, nearby star in the past 108 years.
- Health & Medicine
Big Headache: Auras may add risk to migraines
Women who experience migraines that are preceded by sensory irregularities face a heightened risk of heart attack and stroke.
- Earth
Sandy clues to ancient climate
The orientation of dunes in north-central Nebraska indicates that the climate there a millennium ago was much different than it is today.
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From Mind to Matter: Data analysis challenges psychokinesis
Numerous experiments in which volunteers mentally attempt to influence the output of computers that generate random sequences of 1s and 0s have failed to show that individuals can use their minds to manipulate the physical world.
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Deadly Disorder: Imagined-ugliness illness yields high suicide rate
The suicide rate among people with a psychiatric disorder that causes them to perceive themselves as ugly is higher than that among people with major depression.
