23/12/2019

Study reveals a role for jumping genes during times of stress

Only 1 percent of human DNA codes for proteins, and approximately half of the rest of the genome is made up of what used to be called "junk" sequences that can copy themselves into RNA or DNA and jump from one location to ...

Study finds whales use stealth to feed on fish

Small fish are speedy and easy to scare. So how is it that a giant humpback whale, attacking at speeds about as fast as a person jogs, is able to eat enough fish to sustain itself? Combining field studies, laboratory experiments ...

Computing with molecules: A big step in molecular spintronics

Spintronics or spin electronics in contrast to conventional electronics uses the spin of electrons for sensing, information storage, transport, and processing. Potential advantages are nonvolatility, increased data processing ...

New rules illuminate how objects absorb and emit light

Princeton researchers have uncovered new rules governing how objects absorb and emit light, fine-tuning scientists' control over light and boosting research into next-generation solar and optical devices.

Chesapeake Bay oysters get more attention at pivotal time

Robert T. Brown pulled an oyster shell from a pile freshly harvested by a dredger from the Chesapeake Bay and talked enthusiastically about the larvae attached—a sign of a future generation critical to the health of the ...

Buckyballs release electron-positron pairs in forward directions

When electrons collide with positrons, their antimatter counterparts, unstable pairs can form in which both types of particle orbit around each other. Named 'positronium,' physicists have now produced this intriguing structure ...

Asian black bears' smart strategy for seasonal energy balance

A collaboration led by scientists at Tokyo University of Agriculture and Technology (TUAT), Japan, has discovered that daily energy balance of Asian black bears (Ursus thibetanus) exhibited seasonal change with a twin-peak ...

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