News
- Physics
Ultracold molecules form inside superatom
The formation of molecules within an ultracold gas of atoms called a Bose-Einstein condensate could be a step toward fluids in which molecules share the same quantum state.
- Health & Medicine
AIDS drugs may cause bone loss
Using X rays to measure bone density in HIV-infected men, researchers find a possible link between bone loss and long-term use of protease inhibitors.
- Health & Medicine
HIV may date back to the 1930s
Genetic analysis of the AIDS virus suggests it first infected humans in the first third of the 20th century.
- Health & Medicine
One more reason to worry
A single dose of the AIDS drug nevirapine, given to mothers to help prevent them from infecting their children during birth, may be enough to prod the virus to develop drug resistance.
- Physics
Spectral atom rings in
Electron waves can generate a phantom atom when a real atom is placed at the right spot inside an elliptical quantum corral, or loop of atoms, arranged on a surface.
- Humans
Treaty Nears on Gene-Altered Exports
In an effort to help preserve biodiversity, negotiators from 130 nations crafted rules of conduct for international trade in living, genetically engineered organisms.
- Anthropology
Drowned land holds clue to first Americans
A map of a now-flooded region charts the path that Asians may have taken to first reach the Americas.
- Physics
Black hole recipe: Slow light, swirl atoms
Whirling clouds of atoms may swallow light the way black holes do, possibly giving scientists a way to test the general theory of relativity in the lab, not just in outer space.
- Health & Medicine
Novel diabetes strain has rapid onset
Japanese researchers have confirmed that some patients with type 1 diabetes have a novel form of the disease that's not caused by immune cells attacking the pancreas.
- Earth
DDT treatment turns male fish into mothers
Injecting into fish eggs an estrogen-mimicking form of the pesticide DDT transforms genetically male medaka fish into apparent females able to lay eggs that produce young.
- Animals
Bees log flight distances, train with maps
After decades of work, scientists crack two problems of how bees navigate: reading bee odometers and mapping training flights.
- Astronomy
Milky Way gets a new layer
Astronomers propose that 150 billion corpses of sunlike stars may blanket the visible disk of the galaxy.
