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The most powerful batteries on earth are only a few millimeters in size but a cellphone version can jump-start a dead car battery and then recharge the phone in the blink of an eye. 

Led by Professor William P. King, researchers at the University of Illinois at Urbana-Champaign show that the new microbatteries out-power even the best supercapacitors and could drive new applications in radio communications and compact electronics.

When many of us were kids, water-transfer printing meant a fake tattoo. For our children, it will mean peel-and-stick versions of solar cells that charge cell phones, change the tint on windows, or power their toys. 

Peel-and-stick, or water-assisted transfer printing (WTP), technologies were developed by a group at Stanford and have been used before for nanowire based electronics. A new partnership between Stanford University and the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) has conducted the first successful demonstration using actual thin film solar cells, NREL principal scientist Qi Wang said.

The latest national survey of 100% biodiesel (B100) "blend stock" samples by the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) found that 95% of the samples from 2011-12 met ASTM International fuel quality specifications, a big improvement over 2007 when less than half of the samples met quality specifications. 

The ASTM standards serve as guidelines for industry and are designed to ensure quality at the pump for consumers, along with reliable operation of the nation's vehicles powered by biodiesel blends.  

One group writing in the European Heart Journal found that digoxin increases mortality in patients with atrial fibrillation (AF). Another group just found that it did not and published in the same journal.

They used the same data.

A new type of exceptionally powerful and long-lived cosmic explosion, powerful blasts of high energy gamma-rays, known as gamma-ray bursts, that lasts hours rather than the more common minute, may mean a new hypothesis; that they arise in the violent death throes of a supergiant star. 

The first example astronomers found was on December 25th, 2010, but it lacked a measurement of distance and so remained shrouded in mystery, with two competing ideas put forward for its origin. The first model suggested it was down to an asteroid, shredded by the gravity of a dense neutron star in our own galaxy, the second that it was a supernova in a galaxy 3.5 billion light years away, or in the more common language of astronomers at a redshift of 0.33. 

 Average sea level changes have averaged about 3 millimeters annually in recent years, leading the 2007 Intergovernmental Panel on Climate Change report to estimate that sea levels could rise between 18 and 59 centimeters (7 to 23 inches) this century.  

The potential impact of rising oceans on populated areas is one of the most pressing concerns. Many of the world's major cities, such as New York, Miami, Amsterdam, Mumbai and Tokyo, are located in low-lying areas near the water.