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Archive for the ‘chemistry’ category: Page 75

Feb 18, 2023

A molecular close-up

Posted by in categories: biotech/medical, chemistry, quantum physics

Imagine going for an MRI scan of your knee. This scan measures the density of water molecules present in your knee, at a resolution of about one cubic millimeter – which is great for determining whether, for example, a meniscus in the knee is torn. But what if you need to investigate the structural data of a single molecule that’s five cubic nanometers, or about ten trillion times smaller than the best resolution current MRI scanners are capable of producing? That’s the goal for Dr. Amit Finkler of the Weizmann Institute of Science’s Chemical and Biological Physics Department.

In a recent study (Physical Review Applied, “Mapping Single Electron Spins with Magnetic Tomography”), Finkler, PhD student Dan Yudilevich and their collaborators from the University of Stuttgart, Germany, have managed to take a giant step in that direction, demonstrating a novel method for imaging individual electrons. The method, now in its initial stages, might one day be applicable to imaging various kinds of molecules, which could revolutionize the development of pharmaceuticals and the characterization of quantum materials.

The experimental set-up: A 30-micron-thick diamond membrane with one sensor, on average, at the top of each column, magnified 2,640 times (top) and 32,650 times (bottom)

Feb 17, 2023

The Syntellect Hypothesis: The Most Probable Path to Our Future Transcendent Superintelligence

Posted by in categories: biological, chemistry, internet, robotics/AI, space

Could we imagine a world where our minds are fused together and interlinked with machine intelligence to such a degree that every facet of consciousness is infinitely augmented? How could we explore the landscapes of inner space, when human brains and synthetic intelligence blend together to generate new structures of consciousness? Is it possible to interpret the ongoing geopolitical events through the lens of the awakening Gaia perspective?

#SyntellectHypothesis #cybernetics #superintelligence #consciousness #emergence #futurism #AGI #GlobalMind #geopolitics


“When we look through the other end of the telescope, however, we can see a different pattern. We can make out what I call the One Mind — not a subdivision of consciousness, but the overarching, inclusive dimension to which all the mental components of all individual minds, past, present, and future belong. I capitalize the One Mind to distinguish it from the single, one mind that each individual appears to possess.” — Larry Dossey

Is humanity evolving into a hybrid cybernetic species, interconnected through the Global Mind? When might the Web become self-aware? What will it feel like to elevate our consciousness to a global level once our neocortices are fully connected to the Web?

Continue reading “The Syntellect Hypothesis: The Most Probable Path to Our Future Transcendent Superintelligence” »

Feb 17, 2023

Obscure Biochemical Paradox May Explain Why We Can’t Find Alien Life

Posted by in categories: alien life, bitcoin, chemistry, cryptocurrencies, existential risks

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Hello and welcome! My name is Anton and in this video, we will talk about a potential resolution to Fermi paradox using another — Levinthal’s Paradox.
Links:
https://theconversation.com/ai-makes-huge-progress-predictin…ent-151181
https://en.wikipedia.org/wiki/Levinthal%27s_paradox.
https://en.wikipedia.org/wiki/Protein_structure_prediction.
https://web.archive.org/web/20110523080407/http://www-miller…nthal.html.
Previous Fermi Paradox part: https://youtu.be/iCDM5uLYeJU
#fermiparadox #proteins #alienlife.

Continue reading “Obscure Biochemical Paradox May Explain Why We Can’t Find Alien Life” »

Feb 16, 2023

Why We May Not Be Alone on Earth w/ Janusz Petkowski

Posted by in categories: biological, chemistry, space

Visit https://brilliant.org/EventHorizon/ to get started learning STEM for free, and the first 200 people will get 20% off their annual premium subscription.
What if we’re not alone on Earth? Why We May Not Be Alone on Earth…

The shadow biosphere is a hypothetical microbial biosphere of Earth that would use radically different biochemical and molecular processes from that of currently known life.

Continue reading “Why We May Not Be Alone on Earth w/ Janusz Petkowski” »

Feb 16, 2023

Scientists are making machines, wearable and implantable, to act as kidneys

Posted by in categories: biotech/medical, chemistry, nanotechnology, wearables

“It doesn’t have just a static function. It has a bank of sensors that measure chemicals in the blood and feeds that information back to the device,” Kurtz says.

Other startups are getting in on the game. Nephria Bio, a spinout from the South Korean-based EOFlow, is working to develop a wearable dialysis device, akin to an insulin pump, that uses miniature cartridges with nanomaterial filters to clean blood (Harhay is a scientific advisor to Nephria). Ian Welsford, Nephria’s co-founder and CTO, says that the device’s design means that it can also be used to treat acute kidney injuries in resource-limited settings. These potentials have garnered interest and investment in artificial kidneys from the U.S. Department of Defense.

For his part, Burton is most interested in an implantable device, as that would give him the most freedom. Even having a regular outpatient procedure to change batteries or filters would be a minor inconvenience to him.

Feb 16, 2023

Tricorder Tech: Microchip Can Electronically Detect Covid Antibodies In Just A Drop Of Blood

Posted by in categories: biotech/medical, chemistry, computing, mobile phones

A single drop of blood from a finger prick. A simple electronic chip. And a smartphone readout of test results that could diagnose a Covid-19 infections or others like HIV or Lyme disease.

It sounds a bit like science fiction, like the beginnings of the medical tricorder used by doctors on Star Trek. Yet researchers at Georgia Tech and Emory University have taken the first step to showing it can be done, and they’ve published their results in the journal Small.

Postdoctoral fellow Neda Rafat and Assistant Professor Aniruddh Sarkar created a small chip that harnesses the fundamental chemistry of the gold-standard lab method but uses electrical conductivity instead of optics to detect antibodies and indicate infection.

Feb 16, 2023

Tracing The Origin Of life

Posted by in categories: chemistry, space

The origin of life is one of the great questions of mankind. One of the prerequisites for the emergence of life is the abiotic – not by living beings caused chemical – production and polymerization of amino acids, the building blocks of life.

“Two scenarios are being discussed for the emergence of life on Earth: On the one hand, the first-time creation of such amino acid chains on Earth, and on the other hand, the influx from space,” explains Tilmann Märk of the University of Innsbruck. “For the latter, such amino acid chains would have to be generated in the very unfavorable and inhospitable conditions in space.”

A team of researchers led by Michel Farizon of the University of Lyon and Tilmann Märk of the University of Innsbruck has now made a significant discovery in the field of abiotic peptide chain formation from amino acids for the smallest occurring amino acid, glycine, a molecule that has been observed several times extraterrestrially in recent years.

Feb 16, 2023

How Did Life Emerge In Chemically Complex Messy Environments?

Posted by in category: chemistry

One of the problems that make it difficult to solve the mystery of the origin of life is determining how life emerged in chemically complex messy environments on primitive Earth.

Feb 16, 2023

Model Shows How Intelligent-like Behavior Can Emerge From Non-living Agents

Posted by in categories: biotech/medical, chemistry, engineering, mathematics, nanotechnology

It acted with rudimentary intelligence, learning, evolving and communicating with itself to grow more powerful.

A new model by a team of researchers led by Penn State and inspired by Crichton’s novel describes how biological or technical systems form complex structures equipped with signal-processing capabilities that allow the systems to respond to stimulus and perform functional tasks without external guidance.

“Basically, these little nanobots become self-organized and self-aware,” said Igor Aronson, Huck Chair Professor of Biomedical Engineering, Chemistry, and Mathematics at Penn State, explaining the plot of Crichton’s book. The novel inspired Aronson to study the emergence of collective motion among interacting, self-propelled agents. The research was recently published in Nature Communications.

Feb 16, 2023

Fission rocket concept could reach Solar Gravitation Lens in 15 years

Posted by in categories: chemistry, space travel

The concept could one day capture incredibly detailed images of distant alien worlds.

NASA is betting on nuclear propulsion technologies. The space agency’s Institute of Advanced Concepts (NIAC) awarded a grant to a company called Positron Dynamics for the development of a novel type of nuclear fission fragment rocket engine (FFRE).

The lightweight nuclear fission engine concept could outperform traditional chemical rocket engines while also allowing for long-lasting, deep space missions.

Continue reading “Fission rocket concept could reach Solar Gravitation Lens in 15 years” »

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