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Nov 25, 2024

Learning more about Supernovae through Stardust

Posted by in categories: evolution, space

Most of the diverse elements in the universe come from supernovae. We are, quite literally, made of the dust of those long-dead stars and other astrophysical processes. But the details of how it all comes about are something astronomers strive to understand.

How do the various isotopes produced by supernovae drive the evolution of planetary systems? Of the various types of supernovae, which play the largest role in creating the elemental abundances we see today? One way astronomers can study these questions is to look at presolar grains.

These are dust grains formed long before the formation of the sun. Some of them were cast out of older systems as a star fired up its nuclear furnace and cleared its system of dust. Others formed from the remnants of supernovae and stellar collisions. Regardless of its origin, each presolar grain has a unique isotopic fingerprint that tells us its story.

Nov 25, 2024

AI Analytics Firm, Pyramid Analytics Secures $50 Million From BlackRock

Posted by in categories: business, robotics/AI

Pyramid Analytics, an AI business analytics company, said on Monday it has raised $50 million in new financing from BlackRock, the world’s biggest asset manager.

Nov 25, 2024

JACS in Conversation with Professor Vivian W.W. Yam

Posted by in category: chemistry

🔍 Curious about the secrets behind successful scientific research? Tune in to our interview with Professor Vivian W.W. Yam and learn about her pioneering work in inorganic and organometallic chemistry.

Watch now! 🎬

Nov 25, 2024

AI Is Not Stealing Jobs—It Is Supercharging Software Development

Posted by in categories: employment, robotics/AI

A lot of the hype today centers on the idea of developers using AI “to write their code.” This is not practical, at least not for complex tasks. However, AI does have some strengths:

• Producing first drafts of code.

• Minor code updates.

Continue reading “AI Is Not Stealing Jobs—It Is Supercharging Software Development” »

Nov 25, 2024

Transforming blood into regenerative materials

Posted by in categories: biotech/medical, materials

Paving the way for personalised 3D-printed implants.

Nov 25, 2024

Lunar Outpost selects Starship to deliver rover to the moon

Posted by in category: space travel

BREMEN, Germany — Lunar Outpost has selected SpaceX’s Starship vehicle to deliver to the moon the Artemis lunar rover it is developing for potential use by NASA.

The Colorado company announced Nov. 21 that it signed an agreement for SpaceX to use Starship to transport the company’s Lunar Outpost Eagle rover to the moon. The companies did not disclose a schedule for the launch or other terms of the deal.

Lunar Outpost is one of three companies that won NASA contracts in April for the first phase of the Lunar Terrain Vehicle (LTV) program to support the development of a rover that can be used by future Artemis missions. Each company received a one-year contract to mature the design of their rovers through a preliminary design review (PDR), and the agency will later select at least one of the companies to develop the rover.

Nov 25, 2024

From Hallucinations to Healing: Reducing Errors in AI for Healthcare

Posted by in categories: biotech/medical, health, robotics/AI

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Now that AI is transforming nearly every industry, healthcare stands out as a field with immense potential — and unique risks.

A single AI-generated error here could lead to serious consequences for patient health.

Nov 25, 2024

Underwater volcano-like structure is spewing gas off Alaska’s coast, US Coast Guard says

Posted by in category: mapping

Mapping in the Chukchi and Beaufort seas off Alaska has uncovered a 1,640-foot-tall structure on the seafloor, but scientists say it’s too early to determine the nature of the discovery.

Nov 25, 2024

Revolutionary High-Speed 3D Bioprinter hailed a Gamechanger for Drug Discovery

Posted by in categories: 3D printing, bioprinting, biotech/medical, neuroscience

Biomedical engineers from the University of Melbourne have invented a 3D printing system, or bioprinter, capable of fabricating structures that closely mimic the diverse tissues in the human body, from soft brain tissue to harder materials like cartilage and bone.

This cutting-edge technology offers cancer researchers an advanced tool for replicating specific organs and tissues, significantly improving the potential to predict and develop new pharmaceutical therapies. This would pave the way for more advanced and ethical drug discovery by reducing the need for animal testing.

Head of the Collins BioMicrosystems Laboratory at the University of Melbourne, Associate Professor David Collins said: In addition to drastically improving print speed, our approach enables a degree of cell positioning within printed tissues. Incorrect cell positioning is a big reason most 3D bioprinters fail to produce structures that accurately represent human tissue.

Nov 25, 2024

Myeloperoxidase leads the way toward safe and efficient antiseptics

Posted by in category: biotech/medical

Within the body, cells involved in specific functions, like immune response and secretion, are equipped with granules, which are small membrane-bound compartments containing enzymes, proteins, or other molecules. In neutrophils, the so-called azurophilic (or primary) granules contain enzymes that are involved in the initial response to an infection.

MPO-based E-101 is the first wound and systemically safe antiseptic, with a safety profile comparable to saline, that is effective in physiological conditions.

Myeloperoxidase, or MPO, is one of the most important of such enzymes for the immune system’s ability to destroy pathogens. Allen has been studying the physiological role of MPO since 1971. Using chemiluminescence and metabolic studies he has been able to study the complex and finely regulated mechanism of NADPH oxidase driven MPO action in microbicidal activity.

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