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Feb 13, 2020

Scientists just watched a newfound asteroid zoom by Earth. Then they saw its moon

Posted by in category: space

Scientists took a second look at a recently discovered asteroid and realized it was in fact two space rocks orbiting together.

Feb 13, 2020

Can art be effective medicine for treatment of mental and physical illness?

Posted by in categories: biotech/medical, education, health, neuroscience

Yes! In this video with my dear friend, artist Nicholas Wilton, I review the scientific data linking creativity and disease remission from Mind Over Medicine. Plus, Nick reads the quote he wrote in Brene Brown’s Daring Greatly about art-making as treatment for perfectionism. If you or someone you love has been hoping to become a “health outlier” who experiences a better than usual outcome from a health struggle, or if you just love art and want to improve your art-making as part of your prescription for optimal health and a vital, fully expressed life, we hope this will offer you inspiration—and a few medicinal laughs! (As an OB/GYN, I couldn’t resist drawing the female reproductive systems when we got to the art-making part.)

Nick will be teaching a wonderful free online art class ART 2 LIFE that starts on Valentine’s Day, so give yourself this gift of your love of art-making. You can sign up for the free course here.

Feb 13, 2020

Childhood brain tumor discovery may unlock new treatments for many cancers

Posted by in categories: biotech/medical, neuroscience

“” This cancer seems simple. Basically, it has been known for many years it is just one type of cells that proliferate out of control,” Zong said. “However, we noticed an interesting paradox. While tumor cells grow really fast in the body, they grow poorly and only for a limited time when we take them out and put them in a [lab] dish. So we suspected some other cells may be in play.”

His investigation of that suspicion turned science’s understanding of medulloblastoma on its head. Using an innovative model of the disease, Zong and his team marked tumor cells so that they would appear green. That led to the first surprise: While all other cell types outside the tumor are colorless, a cell type called astrocyte appeared green, which never happens in normal brain regions.

“Astrocyte actually has been linked to poor prognosis of medulloblastoma, but nobody has ever suspected its origin, since the cell of origin for medulloblastoma normally never gives rise to astrocytes. The fact that tumor-associated astrocytes share the same color with tumor cells suggests that they actually come from tumor cells,” he said. “So some tumor cells basically completely change their identity to make a separate cell type.”

Continue reading “Childhood brain tumor discovery may unlock new treatments for many cancers” »

Feb 13, 2020

Antibiotics discovered that kill bacteria in a new way

Posted by in category: biotech/medical

A new group of antibiotics with a unique approach to attacking bacteria has been discovered, making it a promising clinical candidate in the fight against antimicrobial resistance.

The newly-found corbomycin and the lesser-known complestatin have a never-before-seen way to kill , which is achieved by blocking the function of the bacterial cell wall. The discovery comes from a family of called glycopeptides that are produced by .

The researchers also demonstrated in mice that these new antibiotics can block infections caused by the drug resistant Staphylococcus aureus which is a group of bacteria that can cause many serious infections.

Feb 13, 2020

Biomedical engineers create ‘smart’ bandages to heal chronic wounds

Posted by in category: biotech/medical

Chronic and non-healing wounds—one of the most devastating complications of diabetes and the leading cause of limb amputation—affects millions of Americans each year. Due to the complex nature of these wounds, proper clinical treatment has been limited.

Feb 13, 2020

Forget 8K, Sony’s New 63-Foot 16K Crystal LED TV Is Now Available—for a Few Million

Posted by in category: entertainment

But think of all the money you’ll save on movie tickets.

The ballpark figure is $5 million.

Feb 13, 2020

Quantum memories entangled over 50-kilometer cable

Posted by in categories: internet, particle physics, quantum physics, security

A team of researchers affiliated with several institutions in China has succeeded in sending entangled quantum memories over a 50-kilometer coiled fiber cable. In their paper published in the journal Nature, the group describes several experiments they conducted involving entangling quantum memory over long distances, the challenges they overcame, and problems still to be addressed.

Over the past several years, scientists have been working toward the development of a quantum internet—one very much the same as the present-day network, but with much stronger security. One such approach is based on the development of quantum keys that would allow parties to a private conversation to know that an interloper is eavesdropping, because doing so would change the state of the keys. But in such systems, measurements of the quantum state of the keys is required, which can be impacted by , making the approach nearly impractical.

Another approach involves using entangled particles to form a network—but this has proven to be difficult to implement because of the sensitivity of such particles and their short lifespan. But progress is being made. In this new effort, the researchers in China succeeded in entangling between buildings 20 kilometers apart and across 50 kilometers of coiled cable in their lab.

Feb 13, 2020

Huge bacteria-eating viruses close gap between life and non-life

Posted by in category: biotech/medical

Scientists have discovered hundreds of unusually large, bacteria-killing viruses with capabilities normally associated with living organisms, blurring the line between living microbes and viral machines.

These phages—short for bacteriophages, so-called because they “eat” bacteria—are of a size and complexity considered typical of life, carry numerous genes normally found in bacteria and use these genes against their bacterial hosts.

University of California, Berkeley, researchers and their collaborators found these huge phages by scouring a large database of DNA that they generated from nearly 30 different Earth environments, ranging from the guts of premature infants and pregnant women to a Tibetan hot spring, a South African bioreactor, hospital rooms, oceans, lakes and deep underground.

Feb 13, 2020

Quantum entanglement over 30 miles of fiber has brought super secure internet closer

Posted by in categories: internet, quantum physics

The lab test suggests a reliable quantum internet between cities might be possible.

Feb 13, 2020

The ESA is about to turn one of its spacecraft into a fireball

Posted by in categories: physics, solar power, space, sustainability

Next week, the European Space Agency is going to jettison a cubesat called Qarman from the International Space Station and watch it burst into a fireball as it reenters Earth’s atmosphere—all on purpose.

What’s the mission: Qarman (short for “QubeSat for Aerothermodynamic Research and Measurements on Ablation”) is a shoebox-sized experiment meant to help researchers better understand the physics at play when objects plummet into the planet’s atmosphere and burn up. Qarman was brought up to the ISS in December during a cargo resupply mission. On February 17, it will be cast back out into space and begin slowly drifting toward Earth before entering the atmosphere and burning up in about six months.

Tell me more: Qarman has four solar-cell-covered panels that are designed to increase atmospheric drag and hasten reentry. Its nose is made from a special kind of cork that’s typically used in thermal protection systems on spacecraft. Ground testing shows that when the cork heats up, it chars and flakes away a bit at a time. The Qarman team is interested in learning how this process works during reentry.