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Apr 17, 2019

CRISPR has been used to treat US cancer patients for the first time

Posted by in categories: biotech/medical, genetics

The gene-editing tool has been used in a trial to enhance the blood cells of two patients with cancer.

The trial: The experimental research, under way at the University of Pennsylvania, involves genetically altering a person’s T cells so that they attack and destroy cancer. A university spokesman confirmed it has treated the first patients, one with sarcoma and one with multiple myeloma.

Slow start: Plans for the pioneering study were first reported in 2016, but it was slow to get started. Chinese hospitals, meanwhile, have launched a score of similar efforts. Carl June, the famed University of Pennsylvania cancer doctor, has compared the Chinese lead in employing CRISPR to a genetic Sputnik.

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Apr 17, 2019

Rega air rescue drone can autonomously search for missing persons

Posted by in categories: drones, food, robotics/AI

We’ve seen autonomous aircraft doing everything from spraying crops to surveying wildlife, and now the Swiss air rescue organization Rega has announced a drone that’s capable of searching for and finding missing people all on its own.

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Apr 17, 2019

Scientists detect the oldest type of molecule in the universe

Posted by in categories: chemistry, cosmology, particle physics

Back in the ancient universe, shortly after the Big Bang, the first atoms formed out of free particles. Only light elements like hydrogen and helium could form at high temperatures, but as the universe cooled, those atoms turned into every single thing we see in our world today. And now, scientists have spotted the type of molecule that formed the very first time two atoms combined.

Theories have predicted for decades that the first molecule that could form would be between the first two elements: hydrogen and helium. But the “helium hydride” molecule, as it’s known, had never been spotted before, Gizmodo explained. This led to some doubt as to whether this theory could even be true. But thanks to a modified Boeing 747 dubbed SOFIA, or Stratospheric Observatory for Infrared Astronomy, we have finally detected the elusive molecule in a far-off nebula called NGC 7027.

Now that it’s confirmed that the universe is capable of forming the helium hydride molecule naturally, this knowledge is helping astronomers better understand how the universe worked in the time just after the Big Bang. The research, published on Wednesday in the journal Nature, has made sense of the “dawn of chemistry,” the authors state. Read more about this exciting find at Gizmodo. Shivani Ishwar.

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Apr 17, 2019

Scientists Restore Some Function In The Brains Of Dead Pigs

Posted by in categories: health, neuroscience

Pig Brains Partly Revived By Scientists Hours After Animals Died : Shots — Health News The cells regained a startling amount of function, but the brains didn’t have activity linked with consciousness. Ethicists see challenges to assumptions about the irreversible nature of brain death.

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Apr 17, 2019

An Interstellar Rock Like ‘Oumuamua May Have Hit Earth In 2014

Posted by in categories: alien life, asteroid/comet impacts, existential risks

Unusual Trajectory

The new research hasn’t yet been published, but it’s available on the preprint server ArXiv as of Monday. In it, Harvard astronomer Avi Loeb — the same dude who doubled down on the idea that ‘Oumuamua could be an alien spacecraft — suggests that a three-foot-wide interstellar meteor flew over Papa New Guinea’s Manus Island before crashing down.

Because of the meteor’s high speed and particular trajectory past Earth, Loeb and his student Amir Suraj suggest that it couldn’t have been bound in an orbit about the Sun. Rather, they argue, it might have come from somewhere beyond our solar system.

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Apr 17, 2019

Why insect populations are plummeting—and why it matters

Posted by in category: futurism

A new study suggests that 40 percent of insect species are in decline, a sobering finding that has jarred researchers worldwide.

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Apr 17, 2019

United States Strategic Command Photo

Posted by in category: military

“To me, it’s very simple. If a rogue nation or other entity shoots an ICBM, inter-continental ballistic missile, at us, we intercept it.” — #USArmy Maj. Jason Brewer, Colorado National Guard #CombatReadyForce

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Apr 17, 2019

Pig brains partially revived after death

Posted by in categories: biotech/medical, neuroscience

US scientists have partially revived pig brains four hours after the animals were slaughtered.

The findings could fuel debate about the barrier between life and death, and provide a new way of researching diseases like Alzheimer’s.

The study showed the death of brain cells could be halted and that some connections in the brain were restored.

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Apr 17, 2019

Magnonic devices can replace electronics without much noise

Posted by in categories: computing, particle physics

Electronic devices such as transistors are getting smaller and will soon hit the limits of conventional performance based on electrical currents.

Devices based on magnonic currents—quasi-particles associated with waves of magnetization, or , in certain —would transform the industry, though scientists need to better understand how to control them.

Engineers at the University of California, Riverside, have made an important step toward the development of practical magnonic devices by studying, for the first time, the level of noise associated with propagation of magnon current.

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Apr 17, 2019

Researchers explore energy-saving catalysts that operate at room temperature

Posted by in categories: nanotechnology, particle physics

NIST researchers have explored in unprecedented detail a new breed of catalysts that allow some chemical reactions, which normally require high heat, to proceed at room temperature. The energy-saving catalysts use sunlight or another light source to excite localized surface plasmons (LSPs)—oscillations of groups of electrons on the surface of certain metal nanoparticles, such as gold, silver and aluminum. The energy derived from the LSP oscillations drives chemical reactions among molecules that adhere to the nanoparticles.

Scientists had previously shown that can be split into its individual atoms by the energy generated by the LSP oscillations. The NIST team has now discovered a second LSP-mediated reaction that proceeds at room temperature. In this reaction, LSPs excited in gold nanoparticles transform two molecules of carbon monoxide into carbon and carbon dioxide. The reaction, which ordinarily requires a minimum temperature of 400 degrees C., plays an important role in converting carbon monoxide into widely used carbon-based materials such as carbon nanotubes and graphite.

Probing the nanoparticles with an and combining the data with simulations, the NIST researchers pinpointed the sites on the gold nanoparticles where the reactions occurred. They also measured the intensity of the LSPs and mapped how the energy associated with the oscillations varied from place to place inside the nanoparticles. The measurements are key steps in understanding the role of LSPs for initiating reactions at room temperature, mitigating the need to heat the samples.

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