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- Exotic particle: Exotic bound states comprising more than three quarks confirmed
- Mitochondrial DNA of first Near Eastern farmers is sequenced for the first time
- Newly discovered insect 'Supersonus' hits animal kingdom's highest-pitch love call
- A new model of liver regeneration: Switch causes mature liver cells to revert back to stem cell-like state
- One and done: New antibiotic could provide single-dose option
| Exotic particle: Exotic bound states comprising more than three quarks confirmed Posted: 06 Jun 2014 07:20 AM PDT For decades, physicists have searched in vain for exotic bound states comprising more than three quarks. Experiments have now shown that, in fact, such complex particles do exist in nature. The measurements confirm first results from 2011 for the existence of an exotic dibaryon made up of six quarks.  |
| Mitochondrial DNA of first Near Eastern farmers is sequenced for the first time Posted: 06 Jun 2014 06:14 AM PDT The mitochondrial DNA of the first Near Eastern farmers has been sequenced for the first time. Experts analyzed samples from three sites located in the birthplace of Neolithic agricultural practices: the Middle Euphrates basin and the oasis of Damascus, located in today's Syria and date at about 8,000 BC.  |
| Newly discovered insect 'Supersonus' hits animal kingdom's highest-pitch love call Posted: 05 Jun 2014 04:09 PM PDT In the rainforests of South America, scientists have discovered a new genus and three new species of insect with the highest ultrasonic calling songs ever recorded in the animal kingdom. The insects have lost the ability of flight due to their reduced wing size, so the adoption of extreme ultrasonic frequencies might play a role in avoiding predators, such as bats.  |
| Posted: 05 Jun 2014 11:17 AM PDT Scientists have new evidence in mice that it may be possible to repair a chronically diseased liver by forcing mature liver cells to revert back to a stem cell-like state. The researchers happened upon this discovery while investigating whether a biochemical cascade called Hippo, which controls how big the liver grows, also affects cell fate. The unexpected answer is that switching off the Hippo-signaling pathway in mature liver cells generates very high rates of dedifferentiation. This means the cells turn back the clock to become stem-cell like again, thus allowing them to give rise to functional progenitor cells that can regenerate a diseased liver.  |
| One and done: New antibiotic could provide single-dose option Posted: 04 Jun 2014 05:20 PM PDT In the battle against stubborn skin infections, including methicillin-resistant Staphylococcus aureus (MRSA), a new single-dose antibiotic is as effective as a twice-daily infusion given for up to 10 days, according to a large study.  |
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