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May 19, 2023

Forgotten Antibiotic From Decades Ago Could Be a Superbug Killer

Posted by in category: biotech/medical

An antibiotic developed some 80 years ago before being abandoned and forgotten could again offer exciting new solutions, this time to the emerging threat of drug-resistant superbugs.

Half of the bacteria-killing drugs we use today are variations of compounds that were found nearly a century ago, during this ‘golden age’ of antibiotics. One called streptothricin was isolated in the 1940s, drawing attention for its potential in treating infections caused by what are known as gram-negative bacteria.

Unlike gram-positive bacteria, these microbes lack a robust cell wall that many antibiotics target. Finding alternatives has been one of the big challenges for the pharmaceutical industry. In 2017, the World Health Organization (WHO) released a list of the most dangerous, drug-resistant pathogens out there. Most were gram-negative bacteria.

May 19, 2023

Google’s New Medical AI Passes Medical Exam and Outperforms Actual Doctors

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

Closin in on Doctor jobs.


A medical domain AI developed by Google Researchers broke records on its ability to pass medical exam questions, but more surprisingly generated answers that were consistently rated as better than human doctors. While the study notes several caveats, it marks a significant milestone in how AI could upend a number of professions.

May 19, 2023

BuzzFeed Says AI Will “Replace the Majority of Static Content”

Posted by in category: robotics/AI

The breadth of BuzzFeed CEO Jonah Peretti’s AI aspirations just got a lot clearer — and if he has it his way, AI use at the viral publisher won’t be limited to time-killing quizzes and bottom-tier travel guides.

BuzzFeed has always lived at the intersection of technology and creativity. And recent developments in artificial intelligence represent an opportunity to take this convergence to the next level,” Peretti told eager investors at the company’s Investor Day last week. “We view AI as an exciting new creativity tool, one that humans can harness to open up new avenues for imagination, storytelling and entertainment and explore new premium product offerings that allow us to innovate and collaborate with our clients and partners on a new frontier in media.”

“Over the next few years, generative AI will replace the majority of static content, and audiences will begin to expect all content to be curated and dynamic with embedded intelligence,” he continued. “AI will lead to new formats that are more gamified, more personalized, and more interactive.”

May 19, 2023

Airport Security Is About to Get Way Faster Thanks to New Technology Being Used by TSA

Posted by in categories: security, transportation

New TSA screening methods will allow passengers through security without showing their boarding passes or by simply taking a picture.

May 19, 2023

A new technique to measure the expansion rate of the Universe

Posted by in category: space

Their data provide insight into a longstanding debate in the field of astronomy.

May 18, 2023

Webb telescope spots signs of universe’s biggest stars

Posted by in categories: chemistry, space

The James Webb Space Telescope has helped astronomers detect the first chemical signs of supermassive stars, “celestial monsters” blazing with the brightness of millions of Suns in the early universe.

So far, the largest stars observed anywhere have a mass of around 300 times that of our Sun.

But the supermassive star described in a new study has an estimated mass of 5,000 to 10,000 Suns.

May 18, 2023

SpaceX rolls next Starship prototype out to pad for engine test (photo)

Posted by in category: space travel

SpaceX rolled the Ship 25 Starship upper-stage prototype out to the launch pad early Thursday morning (May 18) to test-fire its six Raptor engines.

May 18, 2023

How Chronic Illness Patients Are ‘Hacking’ Their Wearables

Posted by in categories: biotech/medical, health, wearables

Fitbits and Apple Watches weren’t designed for people with atypical health conditions. But the tech can be extremely useful—with some creativity.

May 18, 2023

40 Hz vibrations reduce Alzheimer’s pathology, symptoms in mouse models

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

Evidence that non-invasive sensory stimulation of 40 Hz gamma frequency brain rhythms can reduce Alzheimer’s disease pathology and symptoms, already shown with light and sound by multiple research groups in mice and humans, now extends to tactile stimulation. A new study by MIT scientists shows that Alzheimer’s model mice exposed to 40 Hz vibration an hour a day for several weeks showed improved brain health and motor function compared to untreated controls.

The MIT group is not the first to show that gamma frequency can affect and improve , but they are the first to show that the can also reduce levels of the hallmark Alzheimer’s protein phosphorylated tau, keep neurons from dying or losing their synapse circuit connections, and reduce neural DNA damage.

“This work demonstrates a third sensory modality that we can use to increase gamma power in the brain,” said Li-Huei Tsai, corresponding author of the study, director of The Picower Institute for Learning and Memory and the Aging Brain Initiative at MIT, and Picower Professor in the Department of Brain and Cognitive Sciences (BCS).

May 18, 2023

How to repair a damaged heart: Key mechanism behind heart regeneration in zebrafish revealed

Posted by in category: biotech/medical

Cardiovascular diseases, such as heart attacks, are a leading cause of death worldwide resulting from a limited self-healing power of the heart. Unlike humans, zebrafish have the remarkable capacity to recover from cardiac damage. Researchers from the group of Jeroen Bakkers (Hubrecht Institute) have used the zebrafish to shed light on their regenerative success. They discovered a new mechanism that functions as a switch to push the heart muscle cells to mature in the regeneration process. Importantly, this mechanism was evolutionary conserved as it had a very similar effect on mouse and human heart muscle cells.

The results of the study, published in Science on May 18, show that examining the natural regeneration process in and applying these discoveries to human heart muscle cells could contribute to the development of new therapies against cardiovascular diseases.

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