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Tiny Drops of Early Universe 'Perfect' Fluid

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New data from the Relativistic Heavy Ion Collider confirm that small nuclei can create tiny droplets of a perfect liquid primordial soup when they collide with larger nuclei.

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Nation’s Researchers Team Up to Improve, Protect Roses

People should be able to stop and smell the roses, not spray them, said Dr. David Byrne, Texas A&M AgriLife Research rose breeder in College Station. Byrne is part of two national specialty crop research projects aimed at toughening up roses’ ability to ward off diseases and other pestilences. He cited surveys in which the gardening public said the No. 1 desired trait is disease resistance.

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A reporter's PressPass is required to access this story until the embargo expires on 2-Sep-2015 1:00 PM EDT

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Men With Low-Risk Prostate Cancer in Active Surveillance Program Not Likely to Succumb to the Disease, Study Shows

Men with relatively unaggressive prostate tumors and whose disease is carefully monitored by urologists are unlikely to develop metastatic prostate cancer or die of their cancers, according to results of a study by researchers at the Brady Urological Institute at Johns Hopkins, who analyzed survival statistics up to 15 years.

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Study Reveals Human Body Has Gone Through Four Stages of Evolution

Research into 430,000-year-old fossils collected in northern Spain found that the evolution of the human body’s size and shape has gone through four main stages, according to a paper published this week.

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New Type of Prion May Cause, Transmit Neurodegeneration

Multiple System Atrophy (MSA), a neurodegenerative disorder with similarities to Parkinson’s disease, is caused by a newly discovered type of prion, akin to the misfolded proteins involved in incurable progressive brain diseases such Creutzfeldt-Jakob Disease (CJD), according to two new research papers led by scientists at UC San Francisco.

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Short Sleepers Are Four Times More Likely to Catch a Cold

A new study led by a UC San Francisco sleep researcher supports what parents have been saying for centuries: to avoid getting sick, be sure to get enough sleep.

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Columbia Engineers Develop New Approach to Modeling Amazon Seasonal Cycles

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Columbia engineers have developed a new approach, opposite to climate models, to correct inaccuracies using a high-resolution atmospheric model that more precisely resolves clouds and convection and parameterizes the feedback between convection and atmospheric circulation. The new simulation strategy paves the way for better understanding of the water and carbon cycles in the Amazon, enabling researchers to learn more about the role of deforestation and climate change on the forest.” (PNAS Online Early Edition 8/31)

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Q&A: Researchers Explain a Strange High-Intensity Result at SLAC's X-Ray Laser

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At extremely high intensities, X-rays stop behaving like the ones in your doctor’s office and begin interacting with matter in very different ways. This “nonlinear” X-ray behavior can only be seen at X-ray free-electron lasers. Recent experiments at the Department of Energy’s SLAC National Accelerator Laboratory have revealed a new, unexpected twist in that behavior that may be one for the textbooks and could change the way these powerful lasers probe matter.