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Med use widens in kids with ADHD
Data from a medical center in Washington state indicate that a substantial minority of children who have attention-deficit hyperactivity disorder receive prescriptions not only for stimulants but also for additional psychoactive drugs intended to treat other mental conditions.
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Typically, prescriptions come from pharmacies with warnings of harmful interactions with other drugs. However, in this article, pediatricians from Children’s Hospital of Philadelphia report a dearth of information about safety or effectiveness of the stimulant Ritalin for kids with attention-deficit hyperactivity disorder also being given nonstimulant psychoactive drugs. In southeastern Virginia, a pediatric psychologist found […]
- Animals
Walking sticks mimic two leafy looks and split their species
A species of walking stick may be evolving into two species by adapting to different environments.
- Physics
Atom laser gets a full tank
A method to refill Bose-Einstein condensates—ultracold clouds of atoms all in the same quantum state—may soon make possible the first atom lasers that can shoot a stream of condensate atoms indefinitely.
- Animals
Mole-rats: Kissing but not quite cousins
Damaraland mole-rats live underground in rodent versions of bee hives, but a genetic analysis of these colonies finds that kinship isn't very beelike.
- Tech
Paint-on displays get closer to reality
By smearing on a coating and hardening it with light, researchers have created a new kind of electronic display.
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Baby talk goes to the dogs, and cats
Acoustic differences in the "baby talk" that mothers use with their infants and with family pets support the notion that adults use this form of speech to teach language skills to their babies.
- Chemistry
Steering reactions with light
A light-based scheme for guiding the motion of chemical wave fronts may suggest ways to control analogous waves present in epileptic seizures and heart arrhythmias.
- Earth
The Air That’s Up There
Researchers are exploring how trees affect the chemistry of the atmosphere.
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Immersive visualization environments such as CAVES can’t function without graphics supercomputers. Your article omitted the unifying factor behind all of its examples: the supercomputing power that made these environments possible. SGI is the company that provides the computer power behind the installations cited in the article. Chodi McReynolds, SGIMountain View, Calif.
- Tech
Deep Vision
Increasingly available virtual-reality gear gives scientists, engineers, and planetarium visitors new perspectives.
