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University of Chicago scientists have solved a 20-year-old puzzle in particle physics using data from an experiment conducted for an entirely different purpose.

Physicists had long known that something was amiss regarding their understanding of how some quarks interact in the beta decay of particles, a common form of radioactivity. Either dozens of experiments conducted over a period of more than three decades were wrong, or the scientists’ theories were. Now, in a set of four

Nature Immunology commentary highlights promising advances in the field Recent discoveries about the way that HIV infects cells are propelling the development of a broad spectrum of promising new antiviral drugs, according to an invited commentary on the topic in the current issue of Nature Immunology (August 27, 2004).

The assessment is made by Gladstone Institute of Virology and Immunology (GIVI) Director Warner Greene, MD, PhD, who also serves as professor of medicine, microbiol

ESO HARPS Instrument Discovers Smallest Ever Extra-Solar Planet

A European team of astronomers [1] has discovered the lightest known planet orbiting a star other than the sun (an “exoplanet”).

The new exoplanet orbits the bright star mu Arae located in the southern constellation of the Altar. It is the second planet discovered around this star and completes a full revolution in 9.5 days.

With a mass of only 14 times the mass of the Earth, the new planet lies at th

A landmark program seeking to bring the promise of genetic research into the “real world” is underway with the first DNA samples to be collected next year. The Guilford Genomic Medicine Iniative is a partnership involving Moses Cone Health System, The University of North Carolina at Greensboro and Duke University.

“This project is an excellent example of solid collaboration in search of a greater good,” Dennis Barry, CEO Emeritus, Moses Cone Health System, says. “After a year of int

Fifteen years ago, the largest telescopes in the world had yet to locate a planet orbiting another star. Today telescopes no larger than those available in department stores are proving capable of spotting previously unknown worlds. A newfound planet detected by a small, 4-inch-diameter telescope demonstrates that we are at the cusp of a new age of planet discovery. Soon, new worlds may be located at an accelerating pace, bringing the detection of the first Earth-sized world one step closer.

Infinitesimal particles of gold have enabled neurobiologists to track down key molecules in the machinery of “entry points” in neurons — offering clues to the organization of a region that has thus far remained largely unknown neuronal territory.

The researchers — from Duke University Medical Center and the University of North Carolina — used electron microscopy to locate molecules tagged with targeted antibodies attached to gold particles — rendering the molecules’ precise