Human brains pay a price for being big August 05, 2008 | User rating: 4.4 / 5 after 30 vote(s)
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Metabolic changes responsible for the evolution of our unique cognitive abilities indicate that the brain may have been pushed to the limit of its capabilities. Research published today in BioMed Central's open access journal ... | |
 Pheromones enhance sex, slow aging -- in worms 4 hours ago | User rating: not shown ( 3 vote(s) ) | No comments yet
(PhysOrg.com) -- People will pay big bucks for pills that promise to enhance sex or slow aging. Now, a Cornell researcher and colleagues have uncovered a class of small molecules in tiny worms that not only ... | |
A positive-feedback system ensures that cells divide 4 hours ago | User rating: not shown ( 2 vote(s) ) | No comments yet
(PhysOrg.com) -- In the life of every cell, there’s a point of no return. Once it enters the cell cycle and passes a checkpoint known as “Start,” a cell will follow the steps it needs to divide — no matter what changes might ... | |
Putting microRNAs on the stem cell map 5 hours ago | User rating: not rated yet | No comments yet
Embryonic stem cells are always facing a choice—either to self-renew or begin morphing into another type of cell altogether. It's a tricky choice, governed by complex gene regulatory circuitry driven by a handful of key regulators ... | |
Clean 3-way split observed 5 hours ago | User rating: not shown ( 4 vote(s) ) | No comments yet
In chemistry as in life, threesomes are not known to break up neatly. And while open-minded thinkers have insisted that clean three-way splits do happen, nobody had actually witnessed one – until now. | |
 Austrians fete voluptuous, prehistoric Venus 5 hours ago | User rating: not shown ( 1 vote(s) ) | No comments yet
(AP) -- It's Venusmania in Vienna, where Austrians are celebrating the discovery 100 years ago Thursday of a tiny but voluptuous figurine that dates back 25,000 years to a time when mammoths roamed the region. | |
 Fingerprints provide clues to more than just identity 5 hours ago | User rating: not shown ( 1 vote(s) ) | No comments yet
Fingerprints can reveal critical evidence, as well as an identity, with the use of a new technology developed at Purdue University that detects trace amounts of explosives, drugs or other materials left behind ... | |
Pacific shellfish ready to invade Atlantic 5 hours ago | User rating: not rated yet | No comments yet
As the Arctic Ocean warms this century, shellfish, snails and other animals from the Pacific Ocean will resume an invasion of the northern Atlantic that was interrupted by cooling conditions three million years ago, predict ... | |
A gene for sexual switching in melons provides clues to the evolution of sex 5 hours ago | User rating: not shown ( 1 vote(s) ) | No comments yet
A newly discovered function for a hormone in melons suggests it plays a role in how sexual systems evolve in plants. The study, conducted by French and American scientists, appears in the latest issue of the journal Science. | |
Complete Neandertal mitochondrial genome sequenced from 38,000-year-old bone 6 hours ago | User rating: 4.9 / 5 after 8 vote(s)
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A study reported in the August 8th issue of the journal Cell, a Cell Press publication, reveals the complete mitochondrial genome of a 38,000-year-old Neandertal. The findings open a window into the Neandertals' past ... | |
 Bulgarian archaeologists discover ancient chariot 8 hours ago | User rating: 3.9 / 5 after 7 vote(s)
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(AP) -- Archaeologists have unearthed a 1,900-year-old well-preserved chariot at an ancient Thracian tomb in southeastern Bulgaria, the head of the excavation said Thursday. | |
Fuel from Cellulose 8 hours ago | User rating: not shown ( 3 vote(s) ) | User comments: 1
Independence from fossil fuel exporting nations, a reduction in the release of greenhouse gases, conservation of dwindling resources: there are any number of reasons to stop the use of fossil fuels. | |
'Edible optics' could make food safer 9 hours ago | User rating: 4.2 / 5 after 6 vote(s)
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Imagine an edible optical sensor that could be placed in produce bags to detect harmful levels of bacteria and consumed right along with the veggies. Or an implantable device that would monitor glucose in your blood for ... | |
No evidence to support 'organic is best' 9 hours ago | User rating: 3.3 / 5 after 18 vote(s)
| User comments: 14
New research in the latest issue of the Society of Chemical Industry's (SCI) Journal of the Science of Food and Agriculture shows there is no evidence to support the argument that organic food is better than food grown ... | |
Ricin's deadly action revealed by glowing probes 9 hours ago | User rating: not shown ( 2 vote(s) ) | No comments yet
A new chemical probe can rapidly detect ricin, a deadly poison with no known antidote that is feared to be a potential weapon for terrorists and cannot quickly be identified with currently available tests. | |
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