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Feb 24, 2023
New discovery sheds light on very early supermassive black holes
Posted by Genevieve Klien in categories: cosmology, space travel
Astronomers from the University of Texas and the University of Arizona have discovered a rapidly growing black hole in one of the most extreme galaxies known in the very early universe. The discovery of the galaxy and the black hole at its center provides new clues on the formation of the very first supermassive black holes. The new work is published in Monthly Notices of the Royal Astronomical Society.
Using observations taken with the Atacama Large Millimeter Array (ALMA), a radio observatory sited in Chile, the team have determined that the galaxy, named COS-87259, containing this new supermassive black hole is very extreme, forming stars at a rate 1,000 times that of our own Milky Way and containing over a billion solar masses worth of interstellar dust. The galaxy shines bright from both this intense burst of star formation and the growing supermassive black hole at its center.
The black hole is considered to be a new type of primordial black hole—one heavily enshrouded by cosmic “dust,” causing nearly all of its light to be emitted in the mid-infrared range of the electromagnetic spectrum. The researchers have also found that this growing supermassive black hole (frequently referred to as an active galactic nucleus) is generating a strong jet of material moving at near light speed through the host galaxy.
Feb 24, 2023
The early universe was crammed with stars 10,000 times the size of our sun, new study suggests
Posted by Dan Breeden in category: futurism
When the universe’s first stars emerged from the cosmic dark ages, they ballooned to 10,000 times the mass of Earth’s sun, new research suggests.
Feb 24, 2023
Stanford Team Uses AI To See More in the Brain
Posted by Dan Breeden in categories: biotech/medical, robotics/AI
Two Stanford researchers are using AI to compare healthy cells to unhealthy cells with mutations linked to Huntington’s disease.
Feb 24, 2023
Is reverse aging already possible? Drugs that could treat aging might already be on the pharmacy shelves
Posted by Paul Battista in categories: biotech/medical, life extension, neuroscience
“People on metformin have 30% lower rates of almost every kind of cancer. It delays cognitive decline. Even people with diabetes who are obese and have more disease to start with but are on metformin have lower mortality rates than people without diabetes who aren’t on the drug.”
What he says is born out in numerous studies. Overall, this safe, super-cheap, decades-old drug not only treats diabetes, but it also seems to delay and compress the years of chronic illness associated with the final stage of life and extend what geroscientists call the “healthspan.”
Metformin is just one of many medications, including other old ones and some brand new inventions, that academic researchers and biotech startups are exploring to slow, stop, or perhaps even reverse aging.
Feb 24, 2023
The Evolution of Warfare in the 21st Century — Part Two: AI on the Battlefield
Posted by 21st Century Tech Blog in categories: law, military, robotics/AI
It is the one-year anniversary of Russia’s latest invasion of Ukraine. On the battlefield AI is assisting both sides in the fight.
Members representing 60 countries gathered in The Hague to discuss the legal and ethical consequences of AI’s use in the military.
Feb 24, 2023
New “biohybrid” machines weave electronics with living cells
Posted by Jose Ruben Rodriguez Fuentes in categories: bioengineering, genetics
By combining combine genetic and electrical engineering, scientists have developed a new technique for wiring electronics into living matter.
Feb 24, 2023
AI is helping your company decide who to lay off
Posted by Raphael Ramos in categories: information science, robotics/AI
AI might not take your job any time soon, but companies are already using it to help them decide who to lay off.
That’s according to a November Capterra survey of 300 US human resources leaders, which found that 98% of respondents plan to use software and algorithms to help them make any layoff decisions in 2023.
While many companies have access to a wide range of employee data — including information on employee attendance, pay, and experience — the HR leaders said “skills” and “performance” data would be most likely to be used in a layoff decision, with 70% of the leaders saying each of these would be considered.
Feb 24, 2023
2D Janus materials could harvest abundant hydrogen fuel
Posted by Genevieve Klien in categories: materials, particle physics
Several studies have predicted that the water splitting reaction could be catalyzed by certain groups of 2D materials—each measuring just a few atoms thick. One particularly promising group are named 2D Janus materials, whose two sides each feature a different molecular composition.
Through new calculations detailed in The European Physical Journal B, Junfeng Ren and colleagues at Shandong Normal University in China present a new group of four 2D Janus materials, which could be especially well suited to the task.
Since hydrogen releases an abundance of energy when combusted, with only water as a byproduct, it is now widely seen as an excellent alternative to fossil fuels. Splitting water molecules involves a redox reaction, where electrons and holes participate in reduction and oxidation reactions.
Feb 24, 2023
Get an NGS test to get the right treatments
Posted by Paul Battista in category: biotech/medical
The more you know about mutations driving your cancer, the better your chances of finding the right treatments.
Even more, over 1 in 3 clinical trials require knowing your tumor profile.
Continue reading “Get an NGS test to get the right treatments” »