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Nyheder2022september24

Synthetic neuromorphic computing in living cells
Nature Communications, Published online: 24 September 2022; doi:10.1038/s41467-022-33288-8 Computational properties of neuronal networks have been applied to computing systems using simplified models comprising repeated connected nodes. Here the authors create layered assemblies of genetically encoded devices that perform non-binary logic computation and signal processing using combinatorial prom
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Want to get a good night's sleep? First of all, stop trying
Seven expert and unexpected tips for people who have already tried everything As a sleep coach, I regularly meet people who have "tried everything" to get more sleep. They have read every article on the subject and devoured every tip on the internet and then adjusted and readjusted their routines based on the advice they have found. Many of them are doing all the right things – spending time windi
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New Project Scanning Old Data for Signs of Alien Civilizations
Transmitter Spotting Two scientists working with the alien-hunting Breakthrough Listen Initiative announced Wednesday that they've developed a new technique to search old data gathered by radio telescopes. The research , accepted for publication in Monthly Notices of the Royal Astronomical Society , c ould potentially open up huge new swathes of the universe to scrutiny by SETI scientists — there
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Google CEO Incredulous at Employees Mad About Loss of Perks
Google Vexed In the days of Silicon Valley past, Google made sure to cement itself as the tech world's resident Cool Boss. But not anymore! The company's productivity crackdown continues, and according to internal audio obtained by CNBC , the tension between forlorn Googlers and their CEO, Sundar Pichai, is growing. "I remember when Google was small and scrappy," Pichai told employees at a compan
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Churches Using "Shameware" Apps to Make Sure Members Don't Watch Porn
Graceless An evangelical Southern Baptist church known as Gracepoint was caught relying on a little more than God's watchful gaze to keep an eye on members of its congregation. And if a church feels compelled to clarify that it's not a cult , well… New members joining Gracepoint's congregation are asked to install an app called Covenant Eyes, which is explicitly marketed as an "anti-pornography"
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NASA Aiming James Webb at Asteroid as DART Prepares to Smash It
Ensemble Cast Who doesn't love an ensemble cast? In a briefing ahead of its DART (Direct Asteroid Redirection Test), which will smash into the tiny moonlet Dimorphos on September 26 in a high stakes test of whether we could nudge a killer asteroid off course before it hit Earth, NASA revealed a fascinating tidbit: that the watchful eyes of the James Webb Space Telescope, the Hubble, and even the
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NASA's Mars Lander Refuses to Die Even Though It's Supposed To
The brave little Mars lander that could is keepin' on keepin' on — even though it was supposed to die months ago. NASA has expected its InSight Mars lander to die for more than a year now , but as Space.com reports , a series of strokes of good luck have helped the plucky spacecraft stay alive. Since as early as June 2021, NASA has been preparing for the beloved lander's demise, with experts pred
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SpaceX Has a Major Problem With Its Starlink Internet Connections
When SpaceX's Starlink internet service first launched as a beta in 2020, many of the headlines were about its blazingly fast speeds . The problem, according to new report from internet speed testing site Ookla, is that the more people get on the service, the slower it seems to get. The report, spotted by PC Gamer , found that Starlink users in the United States and Canada have seen a steep decli
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Comprehensive assessment of miniature CRISPR-Cas12f nucleases for gene disruption
Nature Communications, Published online: 24 September 2022; doi:10.1038/s41467-022-33346-1 CRISPR-Cas12f nucleases can be effectively packaged into AAVs for gene therapy, but a systematic evaluation of editing outcomes is lacking. Here the authors perform a comprehensive assessment of 4 Cas12f proteins and compare to Cas9 and two Cas12a proteins at a number of sites.
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30 Minutes of Gold Rush Season 12 | Gold Rush
Stream Gold Rush on discovery+: https://www.discoveryplus.com/show/gold-rush #GoldRush #ParkerSchnabel #Discovery Subscribe to Discovery: http://bit.ly/SubscribeDiscovery Follow Us on TikTok: https://www.tiktok.com/@Discovery We're on Instagram! https://instagram.com/Discovery Join Us on Facebook: https://www.facebook.com/Discovery Follow Us on Twitter: https://twitter.com/Discovery From: Discove
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Hilary Mantel's Art Was Infused With Her Pain
"Once the queen's head is severed, he walks away. A sharp pang of appetite reminds him that it is time for a second breakfast, or perhaps an early dinner." These are the first two sentences of T​he Mirror and ​the Light , the third volume of Hilary Mantel's ​trilogy about the life of Thomas Cromwell and the last book she published before she died on Thursday at the lamentably young age of 70. Wit
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This Week's Awesome Tech Stories From Around the Web (Through September 24)
ROBOTICS These Autonomous, Wireless Robots Could Dance on a Human Hair Devin Coldewey | TechCrunch "The competition to create ever smaller, ever better robots is a fierce one, and Cornell University is out front now with a set of bots small enough to sit on a human hair but that can move on their own using nothing but light as a power source." ARTIFICIAL INTELLIGENCE DeepMind's New Chatbot Uses G
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How I Finally Learned My Name
T he email came from a stranger. "Dear Mr. Temple," it said. "My name is Andrea Paiss, and I live in Budapest, Hungary. I do not know whether I write to the right person. I just hope so." It reached me in San Francisco on January 1, 2020, and told of a "Granny," then 92, who wanted to know what had happened to her cousin Lorant Stein. Andrea had found a document online about Lorant in the Central
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Did a Famous Doctor's COVID Shot Make His Cancer Worse?
O n September 22 of last year, Michel Goldman, a Belgian immunologist and one of Europe's best-known champions of medical research, walked into a clinic near his house, rolled up his sleeve, and had a booster shot delivered to his arm. He knew he'd need it more than most. Just a few weeks earlier, Michel, 67, had been to see his younger brother, Serge, the head of nuclear medicine at the hospital
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Weekend reads: 'Papermill alarm' software; questions about a study of prosthetics; what do publishers stand for?
Would you consider a donation to support Weekend Reads, and our daily work? Thanks in advance. The week at Retraction Watch featured: Journal says ivermectin study met standard for 'credible science' Former Iranian government official up to two retractions, five corrections A journal did nothing about plagiarism allegations for a year. Then the tweets (and an email … Continue reading
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Oscillating light engine realized by photothermal solvent evaporation
Nature Communications, Published online: 24 September 2022; doi:10.1038/s41467-022-33374-x Developing an oscillating actuator that can directly convert solar energy into mechanical energy is highly desirable. Here, authors report a solvent-assisted light-driven oscillator by porous film that achieves excellent oscillating actuation performance and can even oscillate by carrying a load under light
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Vacancy driven surface disorder catalyzes anisotropic evaporation of ZnO (0001) polar surface
Nature Communications, Published online: 24 September 2022; doi:10.1038/s41467-022-33353-2 Evaporation and crystal growth occur at different rates on different surfaces. Here authors show dissociative evaporation from ZnO (0001) polar surfaces is accelerated by the formation of a Zn-deficient quasi-liquid layer derived from the formation and inward diffusion of Zn vacancies that stabilize the pol
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A wind environment and Lorentz factors of tens explain gamma-ray bursts X-ray plateau
Nature Communications, Published online: 24 September 2022; doi:10.1038/s41467-022-32881-1 The origin of the plateau observed in the early X-ray light curves of gamma ray bursts (GRBs) is debated. Here, the authors show that the observed plateau can be explained within the classical GRB model by considering expanding shell with initial Lorentz factor of a few tens.
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Phosphorylcholine-conjugated gold-molecular clusters improve signal for Lymph Node NIR-II fluorescence imaging in preclinical cancer models
Nature Communications, Published online: 24 September 2022; doi:10.1038/s41467-022-33341-6 Fluorescent tracers facilitate the identification and subsequent collection of tumour draining lymph node biopsies, enabling important clinical assessment. Here, the authors present a molecular gold nanocluster NIR-II fluorescent imaging probe and demonstrate its utility to visualise draining lymph nodes in
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Russia's battle to convince people to join its war is being waged on Telegram
When Vladimir Putin declared the partial call-up of military reservists on September 21, in a desperate effort to try to turn his long and brutal war in Ukraine in Russia's favor, he kicked off another, parallel battle: one to convince the Russian people of the merits and risks of conscription. And this one is being fought on the encrypted messaging service Telegram, with pro-Putin actors pushing
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A miniaturized bionic ocean-battery mimicking the structure of marine microbial ecosystems
Nature Communications, Published online: 24 September 2022; doi:10.1038/s41467-022-33358-x Marine ecosystems are dominated by microbial communities. Inspired by the photoelectric conversion feature of the marine ecosystems, the authors design a four-species microbial community to mimic primary producer, primary degrader, and ultimate consumers, and show its ability to convert light into electrici
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Flame-made ternary Pd-In2O3-ZrO2 catalyst with enhanced oxygen vacancy generation for CO2 hydrogenation to methanol
Nature Communications, Published online: 24 September 2022; doi:10.1038/s41467-022-33391-w Assembling multicomponent catalysts to harness synergic effects is challenging. Now, flame spray pyrolysis permits the synthesis of ternary Pd-In2O3-ZrO2 catalysts with an optimal architecture and an enriched density of oxygen vacancies for maximal performance in CO2-based methanol synthesis.
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Forensic anthropologist Sue Black: 'The body is really just layers upon layers of memory'
Exclusive: The professor chosen to deliver Royal Institution Christmas lectures talks about a fascination with anatomy that goes back to plucking pheasants as a child From a solitary set of finger bones to a fragment of skull in a washing machine, the cases Dame Sue Black has helped solve may seem too gruesome for the joyful spectacle that is the Royal Institution Christmas lectures. But it is no
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Structure of the malaria vaccine candidate Pfs48/45 and its recognition by transmission blocking antibodies
Nature Communications, Published online: 24 September 2022; doi:10.1038/s41467-022-33379-6 Pfs48/45, a surface protein of Plasmodium falciparum, is a promising anti-malarial vaccine candidate whose structure is not entirely resolved. Here, the authors present the structure of the full-length molecule, and characterise the binding and activity of transmission blocking antibodies.
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Experimental evidence for core-Merge in the vocal communication system of a wild passerine
Nature Communications, Published online: 24 September 2022; doi:10.1038/s41467-022-33360-3 It has been hypothesized that language depends on a capacity to produce and recognize two items (e.g., "come" + "talk") as a single unit (e.g., "come talk"). Here, the authors show that a wild passerine also uses this capacity in vocal communication.
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Bond engineering of molecular ferroelectrics renders soft and high-performance piezoelectric energy harvesting materials
Nature Communications, Published online: 24 September 2022; doi:10.1038/s41467-022-33325-6 Improving piezoelectric strain and voltage constant generally compromises piezoelectric performance and mechanical softness. Here, the authors report a bond weakening strategy for organic-inorganic hybrid piezoelectrics and mitigated these issues.
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Two modes of evolution shape bacterial strain diversity in the mammalian gut for thousands of generations
Nature Communications, Published online: 24 September 2022; doi:10.1038/s41467-022-33412-8 Here, the authors show that a colonizing bacterial strain evolves in the gut by either generating ecotypes or continuously fixing beneficial mutations. They associate the first mode to metabolic mutations and the second to domestication of bacteriophages that are incorporated into the bacterial genome.
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Interferon gamma mediates the reduction of adipose tissue regulatory T cells in human obesity
Nature Communications, Published online: 24 September 2022; doi:10.1038/s41467-022-33067-5 Murine models of obesity suggest that decreases in the adipose tissue regulatory T cell compartment may contribute to insulin resistance, but how this corresponds in the human clinical context is less well understood. Here the authors propose a role for interferon gamma in shrinking the adipose tissue regul
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Dreams i have – would like your opinion
I'm not into woo woo stuff or new age but would like to understand different theories of point of views available on this mater. So i made a topic about the last dream i had here , you should also check out this one and would like to understand under the light of science if i'm having hallucinations while dreaming or any other event. submitted by /u/neapo [link] [comments]
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Shape-shifting fat cells fuel breast cancer growth
Fat cells, or adipocytes, that grow in close proximity to breast cancers can shift into other cell types that promote tumor growth, a new study suggests. The findings could lead to new ways to fight breast cancer, a disease that is diagnosed in more than 300,000 U.S. women each year and kills nearly 45,000 annually.
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Tracking the origin of southern California's latest invasive pest
In 2012, a crop of California's most prized ornamental trees was overrun by an invisible invader. The growing shoots of coral beans — the official city tree of Los Angeles — began wilting and falling away, revealing stems that had been hollowed out from the inside by the caterpillars of Erythrina stem borer moths. A new study published this Wednesday in the Journal of Applied Entomology reveals
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Is AI Art a 'Toy' or a 'Weapon'?
Editor's Note: This article is part of our coverage of The Atlantic Festival. Learn more and watch festival sessions here . Earlier this year, the technology company OpenAI released a program called DALL-E 2, which uses artificial intelligence to transform text into visual art. People enter prompts (" plasticine nerd working on a 1980s computer ") and the software returns images that showcase hum
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Geek Wars
This is an edition of The Atlantic Daily, a newsletter that guides you through the biggest stories of the day, helps you discover new ideas, and recommends the best in culture. Sign up for it here . Pop-culture franchises such as Lord of the Rings and Game of Thrones —which grew this year to include Amazon's The Rings of Power and HBO's House of the Dragon , respectively—have recently begun diver
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The New Kabul
The streets are silent. Women and schoolgirls are completely covered, if they are seen at all. Food is scarce for many. But it was not always like this in Bushra Seddique's home. Before she fled Afghanistan, before the Taliban returned just over a year ago, Seddique had days and nights in cafés with friends, a job as a journalist, and a full life in bustling Kabul. Seddique's escape from Afghanis
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Breakdown of bulk-projected isotropy in surface electronic states of topological Kondo insulator SmB6(001)
Nature Communications, Published online: 23 September 2022; doi:10.1038/s41467-022-33347-0 Previous work exploring the robustness of topological surface states to perturbations has mostly focused on surfaces with the same atomic structure as the bulk. Here the authors demonstrate the effect of surface reconstruction on the topological surfaces on the (100) surface of SmB6.
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Fighting fungal infections with metals
Researchers have demonstrated that chemical compounds containing special metals are highly effective in fighting dangerous fungal infections. These results could be used to develop innovative drugs which are effective against resistant bacteria and fungi.
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Ford Wants Pedestrians to Download an App So Its Trucks Don't Run Them Over
Saved by an App American car giant Ford has come up with a puzzling new way to ensure pedestrians aren't run over while crossing the street — a smartphone app. The tech, which the company is set to show off at this week's Intelligent Transportation Society of America's World Congress in Los Angeles, alerts drivers if they're about to hit a pedestrian — as long as they conveniently have the app in
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