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General Science news 1234

90 billion tons of microbial organisms live in the deep biosphere

July 21, 2008 | User rating: 4.6 / 5 after 14 vote(s) | User comments: 2

Biogeoscientists show evidence of 90 billion tons of microbial organisms—expressed in terms of carbon mass—living in the deep biosphere, in a research article published online by Nature, July 20, 2008. ...


A dash of lime -- a new twist that may cut CO2 levels back to pre-industrial levels

July 21, 2008 | User rating: 3.9 / 5 after 104 vote(s) | User comments: 26

Scientists say they have found a workable way of reducing CO2 levels in the atmosphere by adding lime to seawater. And they think it has the potential to dramatically reverse CO2 accumulation in the atmosphere, reports Cath ...


The genetics of the white horse unraveled

July 20, 2008 | User rating: 4.5 / 5 after 11 vote(s) | User comments: 2

The white horse is an icon for dignity which has had a huge impact on human culture across the world. An international team led by researchers at Uppsala University has now identified the mutation causing this spectacular ...


Class of antibiotics can enhance gene-silencing tool

July 20, 2008 | User rating: not shown ( 3 vote(s) ) | No comments yet

A way to turn off one gene at a time has earned acceptance in biology laboratories over the last decade. Doctors envision the technique, called RNA interference, as a tool to treat a variety of diseases if it can be adapted ...


Stem Cell Chicken and Egg Debate Moves to Unlikely Arena: The Testes

July 20, 2008 | User rating: 4.8 / 5 after 10 vote(s) | User comments: 2

Logic says it has to be the niche. As air and water preceded life, so the niche, that hospitable environment that shelters adult stem cells in many tissues and provides factors necessary to keep them young ...


Pregnant mice block out unwelcome admirers to protect their pups

July 20, 2008 | User rating: 4.6 / 5 after 7 vote(s) | No comments yet

Mouse mothers-to-be have a remarkable way to protect their unborn pups. Because the smell of a strange male's urine can cause miscarriage and reactivate the ovulatory cycle, pregnant mice prevent the action of such olfactory ...


Ancient Egyptian boat to be excavated, reassembled

July 20, 2008 | User rating: 4.8 / 5 after 8 vote(s) | No comments yet

(AP) -- Archaeologists will excavate hundreds of fragments of an ancient Egyptian wooden boat entombed in an underground chamber next to Giza's Great Pyramid and try to reassemble the craft, Egyptologists ...


Researchers use salmonella to administer vaccines

July 18, 2008 | User rating: not shown ( 2 vote(s) ) | User comments: 2

(PhysOrg.com) -- Researchers at the Biodesign Institute at Arizona State University have made a major step forward in their work to develop a biologically engineered organism that can effectively deliver an ...


Suckling infants trigger surges of trust hormone in mothers' brains

July 18, 2008 | User rating: 4.8 / 5 after 5 vote(s) | No comments yet

Researchers from the University of Warwick, in collaboration with other universities and institutes in Edinburgh, France and Italy, have for the first time been able to show exactly how, when a baby suckles at a mother's ...


Study identifies cells for spinal-cord repair

July 18, 2008 | User rating: 4.9 / 5 after 19 vote(s) | No comments yet

(PhysOrg.com) -- A researcher at MIT’s Picower Institute for Learning and Memory has pinpointed stem cells within the spinal cord that, if persuaded to differentiate into more healing cells and fewer scarring cells following ...


A Viral Cloaking Device: Biologists show how Human Cytomegalovirus hides from the immune system

July 18, 2008 | User rating: 5 / 5 after 7 vote(s) | User comments: 1

(PhysOrg.com) -- Viruses achieve their definition of success when they can thrive without killing their host. Now, biologists Pamela Bjorkman and Zhiru Yang of the California Institute of Technology have uncovered how one ...


Natural selection may not produce the best organisms

July 18, 2008 | User rating: 3.6 / 5 after 39 vote(s) | User comments: 17

"Survival of the fittest" is the catch phrase of evolution by natural selection. While natural selection favors the most fit organisms around, evolutionary biologists have long wondered whether this leads to the best possible ...


Calif condors' animal instinct takes over in fire

July 17, 2008 | User rating: 3.6 / 5 after 5 vote(s) | User comments: 1

(AP) -- As wildfire whipped toward a remote sanctuary of the endangered California condor last month, the rare birds got their biggest test in survival after years of pampering by biologists: They had to live completely ...


When Fish Talk, Scientists Listen

July 17, 2008 | User rating: 4.4 / 5 after 8 vote(s) | No comments yet

(PhysOrg.com) -- A male midshipman, a close relative of the toadfish, doesn't need good looks to attract a mate – just a nice voice. After building a nest for his potential partner, he calls to nearby females ...


Research Publications Online: Too Much of A Good Thing?

July 17, 2008 | User rating: 4.2 / 5 after 12 vote(s) | No comments yet

The Internet gives scientists and researchers instant access to an astonishing number of academic journals. So what is the impact of having such a wealth of information at their fingertips? The answer, according ...


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