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Jul 14, 2008

Cellular decision on the computer

Scientists of the Division of Theoretical Bioinformatics at the German Cancer Research Center (Deutsches Krebsforschungszentrum, DKFZ) in Heidelberg have simulated on the computer how cells decide whether or not to migrate. ...

Other Jan 9, 2008

How We Localize Surround Sound

You're walking down a busy street, with cars and buses driving past and bits of conversations reaching your ears, when you hear someone call your name. You turn about 60 degrees to your left and look up to the second floor ...

General Physics Dec 3, 2007

Analog of cosmological particle creation

“In cosmology there’s this quantum effect,” Ralf Schützhold tells PhysOrg.com. “In the universe, there is a ground state, where it is empty. But if the universe starts to expand or contract, the vacuum is distorted, ...

Nov 15, 2007

Gene in male fish lures females into sex

A gene has been found in male cichlid fish that evolved to lure female fish so that male cichlids can deposit sperm in the females mouths. A study in the online open access journal BMC Biology reveals that the gene is associated ...

Sep 4, 2007

Ultraconserved Elements in the Genome: Are They Indispensable?

Three years ago, "ultraconserved elements" were discovered in the genomes of mice, rats, and humans. These are DNA sequences 200 base pairs in length or longer — some are over 700 base pairs long — showing 100-percent ...

Aug 7, 2007

Researchers discover some of the oldest forms of life

University of Queensland researchers have identified microbial remains in some of the oldest preserved organic matter on Earth, confirmed to be 3.5 billion years-old.

Astronomy Aug 6, 2007

First light for word's largest 'thermometer camera'

The world's largest bolometer camera for submillimetre astronomy is now in service at the 12-m APEX telescope, located on the 5100m high Chajnantor plateau in the Chilean Andes. LABOCA was specifically designed for the study ...

Earth Sciences Jul 5, 2007

The Earth is smaller than assumed: German researchers

Although the discrepancy is not large, it is significant: Geodesists from the University of Bonn have remeasured the size of the Earth in a long lasting international cooperation project. The blue planet is accordingly some ...

General Physics Mar 12, 2007

Physicists Turn Rubidium Atom Into a Single-Photon Server

Every time you switch on a light bulb, 10 to the power of 15 visible photons, the elementary particles of light, are illuminating the room in every second. If that is too many for you, light a candle. If that is still too ...

Other Mar 5, 2007

Test to Reveal Levels of Depleted Uranium in Army Personnel

A test recently used by the UK government’s Independent Depleted Uranium Oversight Board to detect exposure to UK troops by depleted uranium (DU) during the 1991 Gulf Conflict was developed by a team led by a University ...

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