Tag Archives: drives

Convection in a volatile nitrogen-ice-rich layer drives Pluto’s geological vigour

The vast, deep, volatile-ice-filled basin informally named Sputnik Planum is central to Pluto’s vigorous geological activity. Composed of molecular nitrogen, methane, and carbon monoxide ices, but dominated by nitrogen ice, this layer is organized into cells or polygons, typically about 10 to 40 kilometres across, that resemble the surface manifestation of solid-state convection. Here we report, on the basis of available rheological measurements, that...

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Indefinite prison for suspect who won’t decrypt hard drives, feds say

(credit: Christiaan Colen)

Federal prosecutors urged a federal appeals court late Monday to keep a child-porn suspect behind bars—where he already has been for seven months—until he unlocks two hard drives that the government claims contains kid smut.

The suspect, a Philadelphia police sergeant relieved of his duties, has refused to unlock two hard drives and has...

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PGC1α drives NAD biosynthesis linking oxidative metabolism to renal protection

The energetic burden of continuously concentrating solutes against gradients along the tubule may render the kidney especially vulnerable to ischaemia. Acute kidney injury (AKI) affects 3% of all hospitalized patients. Here we show that the mitochondrial biogenesis regulator, PGC1α, is a pivotal determinant of renal recovery from injury by regulating nicotinamide adenine dinucleotide (NAD) biosynthesis. Following renal ischaemia, Pgc1α−/− (also known as Ppargc1a−/−) mice...

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Ars drives the McLaren 650S Spider

We test the McLaren 650S Spider. Cinematography by Ivan Flores, editing by Jennifer Hahn. (video link)

OK, we'll admit it—there was a lot of excitement in the office leading up to our time with the McLaren 650S Spider. And why not? This is a proper carbon fiber supercar, built in the same factory as one of the most successful and storied Formula 1 teams. It's...

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