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Environment
Marine particle bacteria play an important role in the marine nitrogen cycle
Ocean snow is made up of various biological fragments in the water column. The photo shows ocean snow from the Sargasso Sea. Credit: L. Lehman Whether living bacteria from organic matter dissolved in seawater can carry out N2 fixation, and how bacteria have confusing scientists. High levels of oxygen combined with the amount of dissolved organic matter in the seawater…
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Chemistry
Researchers highlight the role ‘workhorse proteins’ play in keeping the nervous system running smoothly
Hsc70 retards SNAP-25 aggregation. Aggregation kinetics of SNAP-25 (50 μM) at 37 °C. The optical density of SNAP-25 was recorded at 360 nm in the absence (black) and presence of Hsc70 (5 μM, red) and Hsc70+CSPαJ (5 μM each, blue). Hsc70 (gray) and CSPαJ (dark gray) alone do not show aggregation. Credit: Journal of Biological Chemistry (2024). DOI: 10.1016/j.jbc.2024.108001 A…
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Other Sciences
Work or play? The rise of online ‘kidfluencers’ raises complex legal and ethical questions
Credit: Pixabay/CC0 Public Domain Videos of children unboxing and playing with toys have become a hallmark of online marketing, making stars out of children as young as two years old. For example, 12-year-old influencer Ryan Kaji earns US$30 million a year on YouTube, where he leads one of the most popular children’s channels. His empire was built on unpacking toys.…
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Biology
Bottlenose dolphins smile at each other when they play – new study reveals how and why
Credit: CC0 Public Domain Dolphins have an irresistible fascination for people. Regardless of their age, they are very playful and often play by themselves, riding waves, jumping into the air, doing flips, and slapping the water with their tail fins. They also play with anything they find in the ocean, including sponges, corals, sticks, plastic bags, and floating buoys. Their…
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Other Sciences
Play for the Earth: 5 climate change games for the holiday season
Credit: CC0 Public Domain Most people in the UK are concerned about climate change, but disagreements over what to do can be polarizing, especially at Christmas when norms around travel, presents and waste are in the spotlight. is remarkable. People who are concerned about climate change and environmental sustainability can feel isolated from family and friends who don’t want to…
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Space & Cosmos
“Killer Electrons”: Thunderstorms play space weather and space pinball
Visualization showing how magnetic field lines, thin lines in cyan color, orbiting the Earth can trap charged particles, thin lines in yellow color. Credit: UCLA EPSS/NASA SVS When lightning strikes, electrons rain down. In a new study, researchers led by undergraduate students at the University of Colorado Boulder have discovered a new relationship between Earth’s weather and space weather. The…
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