Τετάρτη 23 Μαΐου 2012

ScienceDaily: Top Science News

ScienceDaily: Top Science News

Patients' skin cells turned into heart muscle cells to repair their damaged hearts

Posted: 22 May 2012 05:06 PM PDT

For the first time scientists have succeeded in taking skin cells from heart failure patients and reprogramming them to transform into healthy, new heart muscle cells that are capable of integrating with existing heart tissue.

Best time to study the cosmos was more than 13 billion years ago

Posted: 22 May 2012 03:06 PM PDT

The universe is a marvelously complex place, filled with galaxies and larger-scale structures that have evolved over its 13.7-billion-year history. Those began as small perturbations of matter that grew over time, like ripples in a pond, as the universe expanded. By observing the large-scale cosmic wrinkles now, we can learn about the initial conditions of the universe. But is now really the best time to look?

Rapid DNA sequencing may soon be routine part of each patient's medical record

Posted: 22 May 2012 12:26 PM PDT

Rapid DNA sequencing may soon become a routine part of each individual's medical record, providing enormous information previously sequestered in the human genome's 3 billion nucleotide bases. Recent advances in sequencing technology using a tiny orifice known as a nanopore are covered in a new a article.

Severe nuclear reactor accidents likely every 10 to 20 years, European study suggests

Posted: 22 May 2012 10:49 AM PDT

Western Europe has the worldwide highest risk of radioactive contamination caused by major reactor accidents. Catastrophic nuclear accidents such as the core meltdowns in Chernobyl and Fukushima are more likely to happen than previously assumed. Based on the operating hours of all civil nuclear reactors and the number of nuclear meltdowns that have occurred, scientists have calculated that such events may occur once every 10 to 20 years (based on the current number of reactors) -- some 200 times more often than estimated in the past.

GPS for the brain: New brain map developed

Posted: 22 May 2012 08:50 AM PDT

Researchers have developed a map of the human brain that shows great promise as a new guide to the inner workings of the body's most complex and critical organ.

Archaeology: Spectacular tomb containing more than 80 individuals discovered in Peru

Posted: 22 May 2012 08:46 AM PDT

Archaeologists have discovered a spectacular tomb containing more than eighty individuals of different ages. This discovery – provisionally dated to around 1000 years ago – was made at the site of Pachacamac.

SpaceX launches Falcon 9/Dragon on historic mission to deliver cargo to International Space Station

Posted: 22 May 2012 05:28 AM PDT

A SpaceX Falcon 9 rocket thundered into space and delivered a Dragon cargo capsule into orbit on May 22, 2012. The launch began an ambitious mission to show that the company is ready to deliver cargo to the International Space Station.

Richer parasite diversity helps protect frogs from viruses that cause malformed limbs

Posted: 21 May 2012 01:38 PM PDT

Increases in the diversity of parasites that attack amphibians cause a decrease in the infection success rate of virulent parasites, including one that causes malformed limbs and premature death, says a new study.

Modern dog breeds genetically disconnected from ancient ancestors

Posted: 21 May 2012 01:38 PM PDT

Cross-breeding of dogs over thousands of years has made it extremely difficult to trace the ancient genetic roots of today's pets, according to a new study.
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