Spin-based sensors have attracted attention due to their high sensitivities. Here authors present a fullerene-based nano spin sensor for in-situ sensing of gas adsorption in porous organic frameworks, demonstrating the potential applications of molecular spin systems in quantum sensing.
Not many pure-play quantum computing start-ups have dared to go public. So far, the financial markets have tended to treat the newcomers unsparingly. One exception is IonQ, who along with D-Wave and Rigetti, reported quarterly earnings last week. Buoyed by hitting key technical and financial goals, IonQ’s stock is up ~400% (year-to-date) and CEO Peter Chapman is taking an aggressive stance in the frothy quantum computing landscape where error correction – not qubit count – has increasingly taken center stage as the key challenge.
This is all occurring at a time when a wide variety of different qubit types are vying for dominance. IBM, Google, and Rigetti are betting on superconducting-based qubits. IonQ and Quantinuuum use trapped ions. Atom Computing and QuEra use neutral atoms. PsiQuantum and Xanadu rely on photonics-based qubits. Microsoft is exploring topological qubits based on the rare Marjorana particle. And more are in the works.
It’s not that the race to scale up qubit-count has ended. IBM has a 433-plus qubit device (Osprey) now and is scheduled to introduce 1100-qubit device (Condor) late this year. Several other quantum computer companies have devices in the 50–100 qubit range. IonQ’s latest QPU, Forte, has 32 qubits. The challenge they all face is that current error rates remain so high that it’s impractical to reliably run most applications on the current crop of QPUs.
Scientists found a way to translate brain waves into music, using a Pink Floyd song — here’s how the tech could be used for communication in the future.
» Sign up for our newsletter KnowThis to get the biggest stories of the day delivered straight to your inbox: https://go.nowth.is/knowthis_youtube.
» Subscribe to NowThis: http://go.nowth.is/News_Subscribe.
For more science and news, subscribe to @NowThisNews.
Continue reading “Scientists Recreate Pink Floyd Song Based on Brain Waves” »
Published: August 8, 2023 8.29am EDT
Alexis souchet, university of southern california.
The big idea.
This post is also available in: 
עברית (Hebrew)
Many artificial intelligence tools use public data to train their large language models, but now large social media sites are looking for ways to defend against data scraping. The problem is that scraping isn’t currently illegal.
According to Cybernews, data scraping refers to a computer program extracting data from the output generated from another program, and it is becoming a big problem for large social media sites like Twitter or Reddit.
What if “looking your age” refers not to your face, but to your chest? Osaka Metropolitan University scientists have developed an advanced artificial intelligence (AI) model that utilizes chest radiographs to accurately estimate a patient’s chronological age. More importantly, when there is a disparity, it can signal a correlation with chronic disease.
These findings mark a leap in medical imaging, paving the way for improved early disease detection and intervention. The results are published in The Lancet Healthy Longevity.
The research team, led by graduate student Yasuhito Mitsuyama and Dr. Daiju Ueda from the Department of Diagnostic and Interventional Radiology at the Graduate School of Medicine, Osaka Metropolitan University, first constructed a deep learning-based AI model to estimate age from chest radiographs of healthy individuals.
Researchers at the Francis Crick Institute have found that molecules in vegetables like broccoli or cauliflower help to maintain a healthy barrier in the lung and ease infection.
The AHR—aryl hydrocarbon receptor—is a protein found at barrier sites like the gut and the lung. Natural molecules in cruciferous vegetables—for example, kale, cauliflower, broccoli, or cabbage—are dietary ‘ligands’ for AHR, which means, once eaten, they activate AHR to target a number of genes. Some of the genes targeted switch off the AHR system, allowing it to self-regulate.
The effect of AHR on immune cells is well understood, but this research, published in Nature, now shows that AHR is also highly active in endothelial cells lining blood vessels in the lung.
An average adult human brain consumes about 20 watts of power, or less than half the consumption of a light bulb. It’s also truly intelligent.
Remember when eggs were so high? A vaccine for birds, now that can make money. 🤔
In the past two years, a viral disease has swept across much of the planet — not Covid but a type of avian flu. It’s devastated the poultry industry in the US, Europe, and elsewhere, sickening millions of farmed birds, which either die from infection or are killed by farmers seeking to stem the spread.
The ongoing outbreak of avian flu has killed hundreds of thousands — if not millions — of wild birds, including endangered species like the California condor. It’s one of the worst wildlife disease outbreaks in history. Having now spread across five continents and hundreds of wildlife species, scientists call the current outbreak a panzootic, meaning a pandemic among animals.
Continue reading “A frightening virus is killing a massive number of wild birds” »
Scientists have found that bubbles secreted by embryonic stem cells counter cellular senescence, in large part due to just two tiny snippets of RNA [1].
Extracellular vesicles (EVs) are membrane-bound tiny bubbles that are loaded with various molecular cargo, such as proteins, DNA, or RNA, that cells secrete as a method of intercellular communication. According to numerous studies, EVs can recapitulate many effects of cellular therapies, such as stem cell treatments [2].
In this new study, the researchers used EVs derived from human embryonic stem cells (ESC) against cellular senescence. ESCs are considered a potent therapeutic, tool but, as the study’s authors note in the introduction, their use “is limited by immune rejection, tumorigenicity and ethical issues”. If we could culture ESCs and use EVs secreted by them to the same effect, this would solve many problems.
