The geometry of RNA

To understand the function of an RNA molecule we need to know its three-dimensional structure. Unfortunately, establishing the shape of an RNA strand is anything but easy and often requires a combination of experimental techniques and computer-based simulations. Many computing methods are used but these are often complex and slow. A team of scientists from SISSA – the International School for Advanced Studies of Trieste – has devised a simple and versatile method, based on the geometry of the RNA molecule. —> Read More Here

National initiative shows multisystem approaches to reduce diabetes disparities

Exciting results from an innovative, multicultural, five-year initiative, known as the Alliance to Reduce Disparities in Diabetes, have been published in ten peer-reviewed articles in the November 2014 supplemental issue of Health Promotion Practice. The findings reveal that a new model of chronic disease management for vulnerable populations with diabetes shows significant promise in strengthening coordination of care, reducing diabetes health disparities and improving health outcomes. —> Read More Here

Model by NIH grantees explains why HIV prevention dosing differs by sex

A mathematical model developed by NIH grantees predicts that women must take the antiretroviral medication Truvada daily to prevent HIV infection via vaginal sex, whereas just two doses per week can protect men from HIV infection via anal sex. This finding helps explain why two large clinical trials testing HIV pre-exposure prophylaxis, or PrEP, in women failed to show efficacy. —> Read More Here

Our World Is Mesmerizing On The Micro Level, And These Award-Winning Photos Are Proof

You’ve never seen a spider, a caterpillar, or even a DVD reader quite like this before.

The winning photos this year in Nikon’s annual Small World Photomicrography Competition offer a very up-close look at these three things and many others–and they’re absolutely beautiful.

The annual competition, which is celebrating its 40th year, showcases some of the best microphotography from around the world. This year, more than 1,200 entries from at least 79 countries were vying for top honors. The entries were judged by biologist Dr. Paul Maddox, Slate science editor Laura Helmuth, and Popular Science’s online director Dave Mosher.

Which photo took first place? Panama resident Rogelio Moreno’s image of a rotifer’s open mouth. Rotifers are sometimes called microscopic “wheel” animals and are commonly found in freshwater.

Check out the top 20 winning photos below.

—> Read More Here

Amelia Earhart Plane Fragment May Have Been Identified

amelia earhart plane fragment

After decades of looking, researchers say they may finally have found a bit of wreckage from Amelia Earhart’s plane.

The aluminum fragment was recovered in 1991 on Nikumaroro, an uninhabited island in the Pacific Ocean about 2,000 miles southwest of Hawaii. Some believe Earhart and her navigator, Fred Noonan, lived there as castaways after being forced to land during their 1937 attempt to circumnavigate the globe.

“This is the first time an artifact found on Nikumaroro has been shown to have a direct link to Amelia Earhart,” Ric Gillespie, executive director of The International Group for Historic Aircraft Recovery (TIGHAR), the non-profit group that made the identification, told Discovery News.

The aluminum fragment found on Nikumaroro, which may be a piece from Amelia Earhart’s plane.

Researchers initially had little interest in the piece because its size and shape didn’t seem to match any part of Earhart’s Lockheed Electra aircraft.

But earlier this year, Gillespie and his colleagues spotted a shiny patch near the tail of Earhart’s aircraft in a photo taken in Miami shortly before she took off on her second try at flying around the world on July 1, 1937. According to TIGHAR, the —> Read More Here

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