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Jan 18, 2025

Unraveling a 500-Million-Year Mystery: Scientists Reveal Ancient Origins of the Ventral Nerve Cord

Posted by in categories: biological, chemistry, physics

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An international team of scientists has uncovered a fascinating piece of the evolutionary puzzle: the origin of the ventral nerve cord, a vital part of the central nervous system, in ecdysozoan animals—a group that includes insects, nematodes, and priapulid worms. Their study, published in Science Advances

<em> Science Advances </em> is a peer-reviewed scientific journal established by the American Association for the Advancement of Science (AAAS). It serves as an open-access platform featuring high-quality research across the entire spectrum of science and science-related disciplines. Launched in 2015, the journal aims to publish significant, innovative research that advances the frontiers of science and extends the reach of high-impact science to a global audience. “Science Advances” covers a broad range of topics including, but not limited to, biology, physics, chemistry, environmental science, and social sciences, making it a multidisciplinary publication.

Jan 17, 2025

Surprising Bacterial Communication We’ve Never Seen Before

Posted by in categories: biological, bitcoin, cryptocurrencies, nanotechnology

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Hello and welcome! My name is Anton and in this video, we will talk about new discoveries about bacterial communication.
Links:
https://www.science.org/doi/10.1126/sciadv.adj1539
https://www.lboro.ac.uk/news-events/news/2025/january/cyanob…formation/
https://en.wikipedia.org/wiki/Prochlorococcus.
https://www.quantamagazine.org/the-ocean-teems-with-networks…-20250106/
Previous video:

#biology #bacteria #biofilm.

Continue reading “Surprising Bacterial Communication We’ve Never Seen Before” »

Jan 17, 2025

A Study of Henri Poincaré’s Sur la Dynamique de l&#8

Posted by in category: futurism

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Henri Poincarés major work on a theory of the electron is “Sur la dynamique de l’électron”.1 It is considered, by some, as evidence that Poincaré, more than anyone else in the late 19th and early 20th centuries, anticipated Einstein’s 1905 theory of relativity.2

Jan 17, 2025

OpenAI has created an AI model for longevity science

Posted by in categories: business, life extension, robotics/AI, science

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OpenAI says no money changed hands in the collaboration. But because the work could benefit Retro—whose biggest investor is Altman—the announcement may add to questions swirling around the OpenAI CEO’s side projects.

Last year, the Wall Street Journal said Altman’s wide-ranging investments in private tech startups amount to an “opaque investment empire” that is “creating a mounting list of potential conflicts,” since some of these companies also do business with OpenAI.

In Retro’s case, simply being associated with Altman, OpenAI, and the race toward AGI could boost its profile and increase its ability to hire staff and raise funds. Betts-Lacroix did not answer questions about whether the early-stage company is currently in fundraising mode.

Jan 17, 2025

Tiny galaxy reignites, shedding light on star formation and cosmic evolution

Posted by in categories: evolution, space

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In a study published in the Astrophysical Journal, a team of researchers led by Kristen McQuinn, a scientist at the Space Telescope Science Institute and an associate professor in the Department of Physics and Astronomy at the Rutgers University-New Brunswick School of Arts and Sciences, has reported finding that Leo P, a small galaxy and a distant neighbor of the Milky Way, “reignited,” reactivating during a significant period on the timeline of the universe, producing stars when many other small galaxies didn’t.

By studying galaxies early in their formation and in different environments, astronomers said they may gain a deeper understanding of the universe’s origins and the fundamental processes that shape it.

McQuinn and other members of the research team studied Leo P through NASA’s James Webb Space Telescope, a space-based apparatus that features a large, segmented mirror and an expansive sunshield, both of which enable it to capture detailed images of distant celestial objects.

Jan 17, 2025

Mapping IL-1’s Role in Mood, Memory, and Sensory Circuits

Posted by in categories: mapping, neuroscience

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Summary: A comprehensive study mapped neuronal IL-1R1 (nIL-1R1) expression in the mouse brain, highlighting its role in sensory processing, mood, and memory regulation. Researchers found that neurons expressing IL-1R1 integrate immune and neural signals, revealing connections between inflammation and brain disorders like depression and anxiety.

The study pinpointed key regions, such as the somatosensory cortex and hippocampus, where IL-1 signaling influences synapse organization and neural circuit modulation. Notably, neuronal IL-1R1 modifies synaptic pathways without triggering inflammation, suggesting distinct functions in the central nervous system.

Jan 17, 2025

Debunked: January 25’s ‘Once In 396 Billion Years’ Planetary Alignment

Posted by in category: space

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Have you read on social media about the “once in 396 billion years” planetary alignment happening on Jan. 25? Guess what? Social media is not reliable. Here’s what’s really going on — and why you don’t have to wait.

Four planets are easily visible to the naked eye this month. Next month, for a short period, there will be five. It’s not irregular, not particularly rare, and certainly not some kind of weird alignment—as the online hype would have you believe—but it is a spectacular sight. But is it one of the best stargazing and astronomy sights of 2025?

Here’s the truth about the so-called “planet parade” and when you can see it as its best all this month and during February.

Jan 17, 2025

DNA motors can switch direction, reshaping genetic understanding

Posted by in categories: biotech/medical, food, genetics

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Scientists from Delft, Vienna, and Lausanne discovered that the protein machines that shape our DNA can switch direction. Until now, researchers believed that these so-called SMC motors that make loops into DNA could move in one direction only. The discovery, which is published in Cell, is key to understanding how these motors shape our genome and regulate our genes.

“Sometimes, a cell needs to be quick in changing which genes should be expressed and which ones should be turned off, for example in response to food, alcohol or heat. To turn genes off and on, cells use Structural Maintenance of Chromosomes (SMC) motors that act like switches to connect different parts of DNA,” first author Roman Barth explains.

“However, SMC machines don’t naturally know which parts to connect. They simply load somewhere on the DNA and start shaping it into a loop until they reach a point where they are forced to stop. That’s why they rely heavily on the ability to explore both sides of the DNA to find the right stop signs.”

Jan 17, 2025

The Biggest Simulation Ever: Frontier Supercomputer Models the Universe

Posted by in categories: evolution, physics, space, supercomputing

At Argonne National Laboratory, scientists have leveraged the Frontier supercomputer to create an unprecedented simulation of the universe, encompassing a span of 10 billion light years and incorporating complex physics models.

This monumental achievement allows for new insights into galaxy formation and cosmic evolution, showcasing the profound capabilities of exascale computing.

Continue reading “The Biggest Simulation Ever: Frontier Supercomputer Models the Universe” »

Jan 17, 2025

MIT’s robot bees hover for 17 mins, break pollination tech record

Posted by in category: robotics/AI

MIT’s new robotic insects, inspired by bees, achieve longer flights and enhanced precision, paving the way for autonomous pollination tasks.

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