February 18, 2013

2 Comments

Astrophysicists Confirm Cosmic Rays Come from Exploding Stars

Cosmic Rays Come From Exploding Stars

Using data from NASA’s Fermi Gamma-ray Space Telescope, researchers confirmed that cosmic rays do indeed come from exploding supernovas. A new study confirms what scientists have long suspected: Cosmic rays – energetic particles that pelt Earth from all directions – are born in the violent aftermath of supernovas, exploding stars throughout the galaxy. A research […]

Continue reading...

February 18, 2013

0 Comments

Yale Study Shows No Link between Hospital Readmissions and Death Rates

No Link Between Hospital Readmissions and Death Rates

New research from Yale University shows that many health institutions do well on mortality and readmission and that performance on one does not dictate performance on the other. Hospital performance on two Medicare quality measures are not strongly related, and are likely to reflect very different aspects of their clinical care, according to results published […]

Continue reading...

February 18, 2013

1 Comment

Nano-Machines Recreate Principal Activities of Proteins

Nano Machines for Bionic Proteins

Using a high performance computing infrastructure, a team of researchers developed the first versatile and modular example of a fully artificial protein-mimetic model system that recreates principal activities of proteins. Physicists of the University of Vienna together with researchers from the University of Natural Resources and Life Sciences Vienna developed nano-machines which recreate principal activities […]

Continue reading...

February 18, 2013

0 Comments

Calcified Bacteria Sheds Light on the Health Consequences of the Evolving Diet

Ancient Teeth Bacteria Record Disease Evolution

A newly published study from the University of Adelaide shows that calcified dental plaque (dental calculus) found on ancient teeth from 34 early European skeletons indicates that the transition from hunter-gatherer to farming shifted the oral microbial community to a disease-associated configuration. DNA preserved in calcified bacteria on the teeth of ancient human skeletons has […]

Continue reading...

February 18, 2013

0 Comments

Hubble Views a Pair of Interacting Galaxies Known as IC 2184

A Pair of Interacting Galaxies Known as IC 2184

Composed of visible and infrared observations from Hubble’s Wide Field and Planetary Camera 2, this Hubble image shows a pair of interacting galaxies known as IC 2184. This large “flying V” is actually two distinct objects — a pair of interacting galaxies known as IC 2184. Both the galaxies are seen almost edge-on in the […]

Continue reading...

February 18, 2013

0 Comments

Image of Magnetic Loops on the Sun

Magnetic Loops on the Sun

This NASA image of the day was taken by the Solar Dynamics Observatory and shows an image of magnetic loops on the sun. Flux Ropes on the Sun This is an image of magnetic loops on the sun, captured by NASA’s Solar Dynamics Observatory (SDO). It has been processed to highlight the edges of each […]

Continue reading...

February 15, 2013

0 Comments

Room Temperature Simultaneous Femtosecond X-ray Spectroscopy and Diffraction of Photosystem II

Photosystem II

Researchers have taken a step forward towards producing artificial photosynthesis systems that would provide clean, green and renewable energy. Using pulses of X-rays from SLAC’s Linac Coherent Light Source, researchers were able to simultaneously image at room temperature the atomic and electronic structures of photosystem II, a metalloenzyme critical to photosynthesis. From providing living cells […]

Continue reading...

February 15, 2013

0 Comments

Solving the Mystery of Saturn’s Moonlets

Unlocking the Mystery Behind Saturns Moonlets

Scientists at Loughborough University have revealed a new computer model that could help solve the mystery of Saturn’s moonlets. Research by Loughborough University physicists casts new light on Saturn’s moonlets – and could help solve some of the mysteries surrounding planet formation. Saturn’s F ring has long been of interest to scientists as its features […]

Continue reading...

February 15, 2013

1 Comment

Understanding How Cells Package Fat

Fat is Stored in the Body in Two Distinct Ways

A newly published study suggests that fat is stored in the body in two distinct ways and may lead to ways to prevent cells from storing excess fat and possibly to new approaches for treating obesity. Fat is stored in the body in two distinct ways, Yale researchers have discovered. While the finding may not […]

Continue reading...

February 15, 2013

0 Comments

CMS Test to Detect the Genetic Signals of Positive Selection

Looking for the Footprints of Positive Selection

Researchers from the Broad Institute have developed a tool known as the Composite of Multiple Signals (CMS) test to detect the genetic signals of positive selection and trace these signals to specific sites in the genome, generating a list of 412 candidate signals. For decades, the human genome could only tell us what we already […]

Continue reading...

February 15, 2013

2 Comments

Near-Earth Asteroid 2012 DA14 Makes a Preview Appearance

Images Depict Asteroid 2012 DA14

A new set of animated images show asteroid 2012 DA14 as it nears its record-close approach to Earth on February 15, 2013. Like trailers for the coming attraction, new images show asteroid 2012 DA14 on its way to a record-close approach to Earth on February 15. One image, taken by amateur astronomer Dave Herald of […]

Continue reading...

February 15, 2013

0 Comments

Spitzer Views Star-Forming Region W5

Star Forming Region W5

This NASA image of the day shows the star-forming region called W5. Generations of stars can be seen in this infrared portrait from NASA’s Spitzer Space Telescope. In this wispy star-forming region, called W5, the oldest stars can be seen as blue dots in the centers of the two hollow cavities (other blue dots are […]

Continue reading...