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Jul 29, 2024

Amtrak’s massive $2.7 billion bridge project has now kicked off

Posted by in category: transportation

American train travel is only getting better.

Jul 29, 2024

During the cosmic dawn, space wasn’t as empty as it seems today

Posted by in categories: cosmology, time travel

Have you ever wondered what the universe looked like after the Big Bang when it was still in its infancy, a mere billion years old? With NASA’s new Nancy Grace Roman Space Telescope, we’re about to get a glimpse of the cosmic dawn.

This cosmic time machine is set to explore an era known as the cosmic dawn, a significant transition when the universe went from a foggy opacity to the stunning, star-filled expanse we observe today.

Behind this ambitious project is the esteemed astrophysicist Michelle Thaller from NASA’s Goddard Space Flight Center in Greenbelt, Maryland.

Jul 29, 2024

$15M rail line upgrade to create hundreds of jobs in East Texas

Posted by in category: employment

The North East Texas Regional Mobility Authority (NET RMA) announced a $15 million infrastructure project that will soon begin to revitalize the Henderson Overton Branch rail line.

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Jul 29, 2024

Watch a colossal X-class solar flare erupt from Earth-facing sunspot (video)

Posted by in category: space

The Earth-directed X-flare action was captured by NASA’s Solar Dynamics Observatory.

Jul 29, 2024

Epigenetics Unlocks Secrets of Memory Formation

Posted by in categories: genetics, neuroscience

Summary: A new study reveals that the epigenetic state of neurons determines their role in memory formation. Neurons with open chromatin states are more likely to be recruited into memory traces, showing higher electrical activity during learning.

Researchers demonstrated that manipulating these epigenetic states in mice can enhance or impair learning. This discovery shifts the focus from synaptic plasticity to nuclear processes, offering potential new avenues for treating cognitive disorders.

Jul 29, 2024

NVIDIA adds tools it says will accelerate development of humanoid robots

Posted by in category: robotics/AI

NVIDIA workflows connect real and synthetic data

Training foundation models for humanoid and other robots typically requires large amounts of data, noted NVIDIA. Teleoperation is one way to capture human demonstration data, but it can be expensive and time-consuming, it said.

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Jul 29, 2024

Cosmic Simulation Reveals How Black Holes Grow and Evolve

Posted by in categories: computing, cosmology, physics

A team of astrophysicists led by Caltech has managed for the first time to simulate the journey of primordial gas dating from the early universe to the stage at which it becomes swept up in a disk of material fueling a single supermassive black hole. The new computer simulation upends ideas about such disks that astronomers have held since the 1970s and paves the way for new discoveries about how black holes and galaxies grow and evolve.

“Our new simulation marks the culmination of several years of work from two large collaborations started here at Caltech,” says Phil Hopkins, the Ira S. Bowen Professor of Theoretical Astrophysics.

The first collaboration, nicknamed has focused on the larger scales in the universe, studying questions such as how galaxies form and what happens when galaxies collide. The other, dubbed STARFORGE, was designed to examine much smaller scales, including how stars form in individual clouds of gas.

Jul 29, 2024

Drugs that Kill ‘Zombie’ Cells may Benefit some Older Women, but not all

Posted by in categories: biotech/medical, food, life extension

Drugs that selectively kill senescent cells may benefit otherwise healthy older women but are not a “one-size-fits-all” remedy, Mayo Clinic researchers have found. Specifically, these drugs may only benefit people with a high number of senescent cells, according to findings publishing July 2 in Nature Medicine.

Senescent cells are malfunctioning cells in the body that lapse into a state of dormancy. These cells, also known as “zombie cells,” can’t divide but can drive chronic inflammation and tissue dysfunction linked to aging and chronic diseases. Senolytic drugs clear tissues of senescent cells.

In the 20-week, phase 2 randomized controlled trial, 60 healthy women past menopause intermittently received a senolytic combination composed of FDA-approved dasatinib and quercetin, a natural product found in some foods. It is the first randomized controlled trial of intermittent senolytic treatment in healthy aging women, and the investigators used bone metabolism as a marker for efficacy.

Jul 29, 2024

How AI is fixing traffic lights | Project Green Light

Posted by in categories: mapping, robotics/AI, transportation

We’re using AI and Google Maps driving trends to optimize traffic light patterns and improve traffic flow. Stop-and-go traffic in urban areas causes 29 times more emissions than on open roads. Researchers at Google are partnering with cities around the globe, from Rio to Jakarta. So far, local governments have saved fuel and lowered emissions for nearly 30 million car rides every month. Learn more about this research at: https://g.co/research/greenlight.

If you are a city representative or traffic engineer and are interested in joining the waiting list, please complete this form: https://docs.google.com/forms/d/e/1FA

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Jul 29, 2024

Artificial Intelligence Will Let Humanity Talk to Alien Civilizations

Posted by in categories: alien life, robotics/AI

Large language models may enable real-time communication with extraterrestrial civilizations despite the vast distances between stars. We need to start thinking about what to tell them about us.

By Franck Marchis & Ignacio G. López-Francos

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