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Earth
Scientists uncover overlooked ocean processes important to carbon storage
Credit: Unsplash/CC0 Public Domain New research reveals an important mechanism that stores organic carbon in the ocean. Organic carbon is a poorly understood but important process that influences Earth’s climate, carbon cycle, and fossil fuel production. Organic carbon normally decomposes in most environments. But vast amounts remain preserved in marine sediments, a mystery that has puzzled scientists for decades. Stored…
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Biology
Scientists uncover insights into neuron function by measuring two key signals simultaneously in living animals
When triggered by odor, C. elegans olfactory neurons undergo rapid changes in membrane potential and intracellular calcium ion levels, leading to fluctuations in the fluorescence intensity of membrane potential sensors and calcium ion sensors. Researchers at Kyushu University measured these changes simultaneously using high-speed capture under a microscope and subsequent image processing, showing that the two signals encode different information…
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Nanotechnology
Cracking the code: Researchers uncover a ‘new synthetic frontier’ for quantum dots
Colloidal solutions of gallium arsenide quantum dots, the kind used in lasers, televisions, solar cells, medical equipment and other electronics, emit light under ultraviolet light. They were grown using breakthrough technology developed by the Talapin Lab at the University of Chicago. This technique opens up a world of new materials for researchers who grow nanocrystals. Credit: University of Chicago/Talapin Lab…
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Earth
Researchers uncover dynamic processes that shape the Arctic seafloor
Repeated surveys by MBARI’s ocean floor mapping autonomous underwater vehicle have revealed unique landforms, including the rapid formation of giant craters and large mounds, on the edge of Canada’s Beaufort Sea continental shelf. Credit: : Eve Lundsten, MBARI MBARI researchers, working with a team of international collaborators, have discovered a large underwater ice formation at the edge of Canada’s Beaufort…
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Other Sciences
Scientists uncover origins of horse riding from human remains
The kurgan hypothesis claims that the Yamnaya people spread their culture across Eurasia, including by building burial mounds like this kurgan in the Mongolian steppes. Credit: William Taylor As anyone who has ever ridden a horse knows, riding a horse is hard on the body, but does it change the way your skeleton looks? The answer is “complicated,” according to…
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Physics
Researchers use terahertz light pulses to uncover superconducting disorders
In the cuprate superconductor La1.83Sr0.17CuO4, interlayer tunneling inherits spatial disorder, which can be measured using isolated Josephson echoes in angle-resolved two-dimensional terahertz spectroscopy. Credit: Jörg Harms, MPSD A team of researchers from the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) in Hamburg, Germany, and Brookhaven National Laboratory in the United States has demonstrated a new way…
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