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Karina

Karina
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Thermodynamics of computation: A quest to find the cost of running...

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Turing machines were first proposed by British mathematician Alan Turing in 1936, and are a theoretical mathematical model of what it means for a...

Study rules out dark matter destruction as origin of extra radiation...

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The detection more than a decade ago by the Fermi Gamma Ray Space Telescope of an excess of high-energy radiation in the center of...

Gas reaches young stars along magnetic field lines

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Astronomers have used the GRAVITY instrument to study the immediate vicinity of a young star in more detail than ever before. Their observations confirm...

Fossil evidence of ‘hibernation-like’ state in 250-million-year-old Antarctic animal

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Hibernation is a familiar feature on Earth today. Many animals—especially those that live close to or within polar regions—hibernate to get through the tough...

First complete dinosaur skeleton ever found is ready for its closeup...

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The first complete dinosaur skeleton ever identified has finally been studied in detail and found its place in the dinosaur family tree, completing a...

How plants shut the door on infection

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Plants have a unique ability to safeguard themselves against pathogens by closing their pores—but until now, no one knew quite how they did it....

How cold was the ice age? Researchers now know

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A University of Arizona-led team has nailed down the temperature of the last ice age—the Last Glacial Maximum of 20,000 years ago—to about 46...

Cosmic rays may soon stymie quantum computing

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The practicality of quantum computing hangs on the integrity of the quantum bit, or qubit. Qubits, the logic elements of quantum computers, are coherent two-level...

Researchers use fossilized teeth to reveal dietary shifts in ancient herbivores...

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A new study published this week in the journal Proceedings of the National Academy of Sciences documents dietary shifts in herbivores that lived between 1-3 million...

Physicists discover new two-dimensional material

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University of Arkansas scientists are part of an international team that has discovered a two-dimensional ferroelectric material just two atoms thick. Two-dimensional materials are ultrathin...

Climate change and land use are accelerating soil erosion by water

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Soil loss due to water runoff could increase greatly around the world over the next 50 years due to climate change and intensive land...