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Carbon’s role in atmosphere formation

A new study in Proceedings of the National Academy of Sciences suggests that the way carbon moves from within a planet to the surface plays a big role in the evolution of a planet’s atmosphere. If Mars released much of its carbon as methane, for example, it might have been warm enough to support liquid water.

PROVIDENCE, R.I. [Brown University] — A new study of how carbon is trapped and released by iron-rich volcanic magma offers clues about the early atmospheric evolution on Mars and other terrestrial bodies. (more…)

Bugs produce diesel on demand

It sounds like science fiction but a team from the University of Exeter, with support from Shell, has developed a method to make bacteria produce diesel on demand.

While the technology still faces many significant commercialisation challenges, the diesel, produced by special strains of E. coli bacteria, is almost identical to conventional diesel fuel.

This means that it does not need to be blended with petroleum products as is often required by biodiesels derived from plant oils. It also means that the diesel can be used with current supplies in existing infrastructure because engines, pipelines and tankers do not need to be modified. Biofuels with these characteristics are being termed ‘drop-ins’. (more…)

Psychopaths are not neurally equipped to have concern for others

Prisoners who are psychopaths lack the basic neurophysiological “hardwiring” that enables them to care for others, according to a new study by neuroscientists at the University of Chicago and the University of New Mexico. (more…)

Scientists map elusive 3-D structure of telomerase enzyme, key actor in cancer, aging

Like finally seeing all the gears of a watch and how they work together, researchers from UCLA and UC Berkeley have, for the first time ever, solved the puzzle of how the various components of an entire telomerase enzyme complex fit together and function in a three-dimensional structure.

The creation of the first complete visual map of the telomerase enzyme, which is known to play a significant role in aging and most cancers, represents a breakthrough that could open up a host of new approaches to fighting disease, the researchers said. (more…)

UA Researchers Solve Mystery of Lincoln’s Funeral Train

With the 2015 sesquicentennial of Abraham Lincoln’s death approaching, interest is rising, and with new tools, UA researchers have turned their attention to one of the last remaining mysteries about what reportedly was the largest traditional funeral in American history – the train’s color.

A trove of information exists about Abraham Lincoln’s funeral, which drew millions of mourners during a two-week railway procession across the Northern states.

But until now, the precise color of the president’s railcar had been lost to history. (more…)

Cutting Specific Atmospheric Pollutants Would Slow Sea Level Rise

Decreasing emissions of black carbon, methane and other pollutants makes a difference

With coastal areas bracing for rising sea levels, new research indicates that cutting emissions of certain pollutants can greatly slow sea level rise this century.

Scientists found that reductions in four pollutants that cycle comparatively quickly through the atmosphere could temporarily forestall the rate of sea level rise by roughly 25 to 50 percent.

The researchers focused on emissions of four heat-trapping pollutants: methane, tropospheric ozone, hydrofluorocarbons and black carbon. (more…)

A techie with a dream sparks a new generation of computer scientists

Read the improbable story of a Microsoft employee who twice turned down a traditional tech sector job so he could teach high school students, and then landed his dream job.

REDMOND, Wash. — Kevin Wang could have followed his career.

Instead, he chose to follow his calling.

It was the early 2000s, and Wang had just graduated from Berkeley with a degree in computer science and electrical engineering. He was trying to decide which tech company he should offer his services to, when a high school came calling. (more…)

New Measurement of Crocodilian Nerves Could Lead to Better Understanding of Ancient Animals’ Behavior, MU Researcher Finds

COLUMBIA, Mo. — Crocodilians have nerves on their faces that are so sensitive, they can detect a change in a pond when a single drop hits the water surface several feet away. Alligators and crocodiles use these “invisible whiskers” to detect prey when hunting. Now, a new study from the University of Missouri has measured the nerves responsible for this function, which will help biologists understand how today’s animals, as well as dinosaurs and crocodiles that lived millions of years ago, interact with the environment around them. (more…)