Tag: "uranium" at biology news

Ancient ape ruled out of man's ancestral line

... younger than earlier estimates. The team used uranium lead chronology to date the remains. Working on extracts of stalagmite deposits from immediately above and below the body, they dated the skeleton at around 2.2 million years old. Their findings, published in the American journal Science, are cont...

Bacteria that use radiated water as food

...ink that's weird? The bacteria rely on radioactive uranium to convert water molecules to useable energy. Th...- and depend not on sunlight but on radiation from uranium ores for their existence. Coauthors of the present paper learned of a new water-filled fracture in...

Study may help slay 'Yellow Monster'

Low-grade uranium ore is nicknamed "yellowcake" for its color and po... yellow monster surfaced on the Navajo Nation with uranium mining that started in the 1940s and continued for the next several decades. In its aftermath came i...

Sandia completes depleted uranium study

...ts associated with accidental exposure to depleted uranium (DU) during the 1991 Gulf War. The study, "An Ana...partment and examines health risks associated with uranium handling. U.S. and British forces used DU in armor-piercing penetrator bullets to disable enemy tan...

Researchers Discover That Microbes Can Produce Miniature Electrical Wires

...ndfill pollution of groundwater, as well as remove uranium from contaminated groundwater at a number of U.S. Department of Energy sites. The title of the paper published in Nature is “Extracellular Electron Transfer Via Microbial Nanowires.?The authors are Derek R. Lovley, Gemma Reguera, Teena Mehta and Jul...

Study uncovers bacteria's worst enemy

...vironmental bacteria, plutonium is less toxic than uranium and, in general, actinides are less toxic than oth...te of toxic pollutants, such as soluble hexavalent uranium carbonate for uranium contamination. However, a single chemical rarely contaminates soils and ground...

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