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Jan 28, 2024

Augmenting insect olfaction performance through nano-neuromodulation

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

Insects have been shown to have the ability to detect different chemical agents. Here, the authors present a nanomaterial-assisted neuromodulation strategy to augment the chemosensory abilities of insects via photothermal effect and on-demand neurotransmitter release from cargo-loaded nanovehicles to augment natural sensory function.

Jan 28, 2024

Space photo of the week: Ancient ‘labyrinth of night’ on Mars, one of the biggest mazes in the solar system

Posted by in category: space

Take a trip through the maze-like valleys and canyons of a unique place in the solar system: Mars’ ‘labyrinth of night.’

Jan 28, 2024

Ancient philosophers understood a key truth of modern cosmology

Posted by in category: cosmology

Ancient ideas about the Universe describe matter as constantly ebbing and flowing, positioning nature as the ultimate recycler.

Jan 28, 2024

On computational models of theory of mind and the imitative reinforcement learning in spiking neural networks

Posted by in categories: biological, robotics/AI

Gorgan Mohammadi, A., Ganjtabesh, M. Sci Rep 14, 1945 (2024). https://doi.org/10.1038/s41598-024-52299-7

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Jan 28, 2024

Changing fitness effects of mutations through long-term bacterial evolution

Posted by in category: evolution

Predictable and parallel changes occur in the fitness effects of mutations in Escherichia coli over 50,000 generations.

Jan 28, 2024

The Sixth Finger

Posted by in categories: evolution, neuroscience

“Where are we going? Life, the timeless, mysterious gift, is still evolving. What wonders, or terrors, does evolution hold in store for us in the next ten thousand years? In a million? In six million? Perhaps the answer lies in this old house in this old and misty valley…” A benign and brilliant scientist (Edward Mulhare) discovers a way to accelerate human evolution. David McCallum (super-agent Illya Kuryakin from “The Man From Uncle”) plays the bitter young coal miner who is miraculously transformed into the man of the future. As a result of the experiment, the size of his brain grows grotesquely, a “sixth finger” appears, and he becomes the possessor of tremendous mental powers!

Jan 28, 2024

Inside ‘ambulance to the future’ where people are frozen in hope of life after death

Posted by in categories: biotech/medical, futurism

Posted for: stormykitteh Josh Layton Suspended in a deep freeze, the growing number of ‘patients’ at the world’s biggest cryo-preservation facilities are taking a dice roll at another life. Some ha…

Jan 28, 2024

CRISPR off-switches: A path towards safer genome engineering?

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

Using CRISPR, an immune system bacteria use to protect themselves from viruses, scientists have harnessed the power to edit genetic information within cells. In fact, the first CRISPR-based therapeutic was recently approved by the FDA to treat sickle cell disease in December 2023. That therapy is based on a highly studied system known as the CRISPR-Cas9 genetic scissor.

However, a newer and unique platform with the potential to make large-sized DNA removals, called Type I CRISPR or CRISPR-Cas3, waits in the wings for potential therapeutic use.

A new study from Yan Zhang, Ph.D., Assistant Professor in the Department of Biological Chemistry at the University of Michigan Medical School, and her collaborators at Cornell University develops off-switches useful for improving the safety of the Type I-C/Cas3 gene editor. The study, “Exploiting Activation and Inactivation Mechanisms in Type I-C CRISPR-Cas3 for 3 Genome Editing Applications,” is published in the journal Molecular Cell.

Jan 28, 2024

A ghostly quasiparticle rooted in a century-old Italian mystery could unlock quantum computing’s potential—if only it could be pinned down

Posted by in categories: nanotechnology, quantum physics, robotics/AI

Already, the graphene efforts have offered “a breath of fresh air” to the community, Alicea says. “It’s one of the most promising avenues that I’ve seen in a while.” Since leaving Microsoft, Zaletel has shifted his focus to graphene. “It’s clear that this is just where you should do it now,” he says.

But not everyone believes they will have enough control over the free-moving quasiparticles in the graphene system to scale up to an array of qubits—or that they can create big enough gaps to keep out intruders. Manipulating the quarter-charge quasiparticles in graphene is much more complicated than moving the Majoranas at the ends of nanowires, Kouwenhoven says. “It’s super interesting for physics, but for a quantum computer I don’t see it.”

Just across the parking lot from Station Q’s new office, a third kind of Majorana hunt is underway. In an unassuming black building branded Google AI Quantum, past the company rock-climbing wall and surfboard rack, a dozen or so proto–quantum computers dangle from workstations, hidden inside their chandelier-like cooling systems. Their chips contain arrays of dozens of qubits based on a more conventional technology: tiny loops of superconducting wires through which current oscillates between two electrical states. These qubits, like other standard approaches, are beset with errors, but Google researchers are hoping they can marry the Majorana’s innate error protection to their quantum chip.

Jan 28, 2024

New satellite capable of measuring Earth precipitation from space

Posted by in categories: chemistry, climatology, satellites

Measuring the amount of precipitation that falls in a specific location is simple if that location has a device designed to accurately record and transmit precipitation data. In contrast, measuring the amount and type of precipitation that falls to Earth in every location is logistically quite difficult. Importantly, this information could provide a wealth of data for characterizing and predicting Earth’s water, energy and biogeochemical cycles.

Scientists from the China Meteorological Administration developed and launched a satellite created to measure Earth precipitation with radar while orbiting in space.

This is the first of two precipitation missions planned by the team to accurately measure the occurrence, type and intensity of any precipitation across the world, including over oceans and complex terrain. Specifically, the FY-3G satellite is designed to assess the 3-dimensional (3D) form of rainfall and other precipitation for weather systems at Earth’s middle and lower latitudes.

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