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Nov 26, 2024

Synthetic Genes Engineered to Mimic how Cells Build Tissues and Structures

Posted by in categories: bioengineering, biotech/medical, nanotechnology

Advance paves the way for broad applications in medicine and biotech. Researchers from the UCLA Samueli School of Engineering and the University of Rome Tor Vergata in Italy have developed synthetic genes that function like the genes in living cells.

The artificial genes can build intracellular structures through a cascading sequence that builds self-assembling structures piece by piece. The approach is similar to building furniture with modular units, much like those found at IKEA. Using the same parts, one can build many different things and it’s easy to take the set apart and reconstruct the parts for something else. The discovery offers a path toward using a suite of simple building blocks that can be programmed to make complex biomolecular materials, such as nanoscale tubes from DNA tiles. The same components can also be programmed to break up the design for different materials.

The research study was recently published in Nature Communications and led by Elisa Franco, a professor of mechanical and aerospace engineering and bioengineering at UCLA Samueli. Daniela Sorrentino, a postdoctoral scholar in Franco’s Dynamic Nucleic Acid Systems lab, is the study’s first author.

Nov 26, 2024

Keeping a cell’s nucleolus compact may be key to fighting aging

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

The secret to cellular youth may depend on keeping the nucleolus—a condensed structure inside the nucleus of a cell—small, according to Weill Cornell Medicine investigators. The findings were elucidated in yeast, a model organism famous for making bread and beer and yet surprisingly similar to humans on the cellular level.

The study, published Nov. 25 in Nature Aging, may lead to new longevity treatments that could extend human lifespan. It also establishes a mortality timer that reveals how long a cell has left before it dies.

As people get older, they are more likely to develop health conditions, such as cancer, and .

Nov 26, 2024

1st-of-its-kind Cryogenic Transistor is 1,000 Times More Efficient And Could Lead to Much More Powerful Quantum Computers

Posted by in categories: computing, quantum physics

Conventional components perform incredibly inefficiently at these sub-freezing temperatures, the scientists said. They’re also very hard to maintain — as more and more qubits are added to a system, the more heat is emitted, which makes it more difficult and expensive to sustain these ultralow temperatures.

Because the new transistor — dubbed the “cryo-CMOS transistor” — is optimized to operate at temperatures under 1 K and emit near-zero heat, it offers plenty of advantages over traditional electronics, representatives of the Finnish company SemiQon, which developed the transistor, said in a statement.

Nov 26, 2024

Combining AI and Crispr Will Be Transformational

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

The genome-editing technology can be supercharged by artificial intelligence—and the results are already being felt.

Nov 26, 2024

New Method Maps Gene Activity in Living Human Brain

Posted by in categories: biotech/medical, neuroscience

Summary: Researchers have developed a new method to profile gene activity in the living human brain, offering new insights into neurological conditions like epilepsy. By analyzing RNA and DNA collected from electrodes implanted in patients’ brains, the study linked molecular data with electrical recordings of seizures, creating a detailed snapshot of gene activity.

This approach enhances understanding of seizure networks, potentially improving the precision of epilepsy surgeries for patients who don’t respond to medication. Beyond epilepsy, the method could have applications in studying Alzheimer’s, Parkinson’s, and schizophrenia, advancing knowledge of brain disorders at the molecular level.

Nov 26, 2024

Anthropic launches tool to connect AI systems directly to datasets

Posted by in category: robotics/AI

The Model Context Protocol connects an AI system to multiple data sources, which Anthropic says can eliminate the need to create custom code for each one.

Nov 26, 2024

Ed Boyden: “Synthetic Neurobiology: Optically Engineering the Brain to Augment Its Function”

Posted by in categories: computing, engineering, genetics, neuroscience, singularity

Ed Boyden is a professor at the MIT Media Lab working on the most advanced brain-computer interfacing technology currently available, optogenetics. At Singularity Summit 2009.

Nov 26, 2024

Ed Boyden — The Future of Humanity | Xapiens Symposium

Posted by in categories: bioengineering, biotech/medical, life extension, robotics/AI

This is the first symposium of Xapiens at MIT — “The Future of Homo Sapiens”

The future of our species will be majorly influenced by the technical advancements and ethical paradigm shifts over the next several decades. Artificial intelligence, neural enhancement, gene editing, solutions for aging and interplanetary travel, and other emerging technologies are bringing sci-fi’s greatest ideas to reality.

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Nov 26, 2024

Neurology: Share your videos with friends, family, and the world

Posted by in category: futurism

Nov 26, 2024

An unconditional distribution learning advantage with shallow quantum circuits

Posted by in categories: computing, quantum physics

https://scirate.com/arxiv/2411.

Researchers present a #quantummachinelearning advantage of families of constant depth local quantum circuits over reasonably constrained log-log-depth classical circuits.

Quantum…


One of the core challenges of research in quantum computing is concerned with the question whether quantum advantages can be found for near-term quantum circuits that have implications for practical applications. Motivated by this mindset, in this work, we prove an unconditional quantum advantage in the probably approximately correct (PAC) distribution learning framework with shallow quantum circuit hypotheses. We identify a meaningful generative distribution learning problem where constant-depth quantum circuits using one and two qubit gates (QNC^0) are superior compared to constant-depth bounded fan-in classical circuits (NC^0) as a choice for hypothesis classes. We hence prove a PAC distribution learning separation for shallow quantum circuits over shallow classical circuits. We do so by building on recent results by Bene Watts and Parham on unconditional quantum advantages for sampling tasks with shallow circuits, which we technically uplift to a hyperplane learning problem, identifying non-local correlations as the origin of the quantum advantage.

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