❌

Vue normale

Il y a de nouveaux articles disponibles, cliquez pour rafraîchir la page.
Aujourd’hui — 28 septembre 2024Actualités numériques

Alcohol Can Increase Your Cancer Risk, Researchers Find

✇Slashdot
Par : EditorDavid
28 septembre 2024 à 17:38
The world's oldest and largest cancer research association "found excessive levels of alcohol consumption increase the risk for six different types of cancer," reports CBS News: "Some of this is happening through chronic inflammation. We also know that alcohol changes the microbiome, so those are the bacteria that live in your gut, and that can also increase the risk," Dr. Céline Gounder, CBS News medical contributor and editor-at-large for public health at KFF Health News, recently said on "CBS Mornings." But how much is too much when it comes to drinking? We asked experts what to know. "Excessive levels of alcohol" equates to about three or more drinks per day for women and four or more drinks per day for men, Gounder said... Other studies have shown, however, there is no "safe amount" of alcohol, Gounder said, particularly if you have underlying medical conditions. "If you don't drink, don't start drinking. If you do drink, really try to keep it within moderation," she said. Dr. Amy Commander, medical director of the Mass General Cancer Center specializing in breast cancer, told CBS News alcohol is the third leading modifiable risk factor that can increase cancer risk after accounting for cigarette smoking and excess body weight. [Other factors include physical inactivity — and diet]. "There really isn't a safe amount of alcohol for consumption," she said. "In fact, it's best to not drink alcohol at all, but that is obviously hard for many people. So I think it's really important for individuals to just be mindful of their alcohol consumption and certainly drink less." The article also includes an interesting statistic from the association's latest Cancer Progress Report: from 1991 to 2021 there's been a 33% reduction in overall cancer deaths in the U.S. That's 4.1 million lives saved — roughly 136,667 lives saved each year. "So that is hopeful," Commander said, adding that when it comes to preventing cancer, alcohol is just "one piece of the puzzle."

Read more of this story at Slashdot.

Octopuses Recorded Hunting With Fish - and Punching Those That Don't Cooperate

✇Slashdot
Par : EditorDavid
28 septembre 2024 à 16:34
Slashdot reader Hmmmmmm shared this report from NBC News: Octopuses don't always hunt alone — but their partners aren't who you'd expect. A new study shows that some members of the species Octopus cyanea maraud around the seafloor in hunting groups with fish, which sometimes include several fish species at once. The research, published in the journal Nature on Monday, even suggests that the famously intelligent animals organized the hunting groups' decisions, including what they should prey upon. What's more, the researchers witnessed the cephalopod species — often called the big blue or day octopus — punching companion fish, apparently to keep them on task and contributing to the collective effort... "If the group is very still and everyone is around the octopus, it starts punching, but if the group is moving along the habitat, this means that they're looking for prey, so the octopus is happy. It doesn't punch anyone..." [said Eduardo Sampaio, a postdoctoral researcher at the Max Planck Institute of Animal Behavior and the lead author of the research]. NBC News says the study is "an indication that at least one octopus species has characteristics and markers of intelligence that scientists once considered common only in vertebrates." Lead author Sampaio agrees that "We are very similar to these animals. In terms of sentience, they are at a very close level or closer than we think toward us."

Read more of this story at Slashdot.

A Cheap, Low-Tech Solution For Storing Carbon? Researchers Suggest Burying Wood

✇Slashdot
Par : EditorDavid
28 septembre 2024 à 15:34
Researchers propose a "deceptively simple" way to sequester carbon, reports the Washington Post: burying wood underground: Forests are Earth's lungs, sucking up six times more carbon dioxide (CO2) than the amount people pump into the atmosphere every year by burning coal and other fossil fuels. But much of that carbon quickly makes its way back into the air once insects, fungi and bacteria chew through leaves and other plant material. Even wood, the hardiest part of a tree, will succumb within a few decades to these decomposers. What if that decay could be delayed? Under the right conditions, tons of wood could be buried underground in wood vaults, locking in a portion of human-generated CO2 for potentially thousands of years. While other carbon-capture technologies rely on expensive and energy-intensive machines to extract CO2, the tools for putting wood underground are simple: a tractor and a backhoe. Finding the right conditions to impede decomposition over millennia is the tough part. To test the idea, [Ning Zeng, a University of Maryland climate scientist] worked with colleagues in Quebec to entomb wood under clay soil on a crop field about 30 miles east of Montreal... But when the scientists went digging in 2013, they uncovered something unexpected: A piece of wood already buried about 6½ feet underground. The craggy, waterlogged piece of eastern red cedar appeared remarkably well preserved. "I remember standing there looking at other people, thinking, 'Do we really need to continue this experiment?'" Zeng recalled. "Because here's the evidence...." Radiocarbon dating revealed the log to be 3,775 years old, give or take a few decades. Comparing the old chunk of wood to a freshly cut piece of cedar showed the ancient log lost less than 5 percent of its carbon over the millennia. The log was surrounded by stagnant, oxygen-deprived groundwater and covered by an impermeable layer of clay, preventing fungi and insects from consuming the wood. Lignin, a tough material that gives trees their strength, protected the wood's carbohydrates from subterranean bacteria... The researchers estimate buried wood can sequester up 10 billion tons of CO2 per year, which is more than a quarter of annual global emissions from energy, according to the International Energy Agency.

Read more of this story at Slashdot.

Open Source Initiative Announces Alliance with Nonprofit Certifications Group

✇Slashdot
Par : EditorDavid
28 septembre 2024 à 14:34
When it comes to professional certifications, the long-running nonprofit Linux Professional Institute boasts they've issued 250,000, making them the world's largest Linux/Open Source certification body. And last week they announced a "strategic alliance" with the Open Source Initiative (OSI), which will now be "participating in development and maintenance of these programs." The announcement points out that the Open Source Initiative already has many distinct responsibilities. Besides creating the Open Source Definition — and certifying that Open Source licenses meet the requirements of Open Source software — the OSI's mission is to "encourage the growth of Open Source communities around the world," which includes "educational and outreach efforts to spread Open Source principles." So the ultimate goal is "strengthening Linux and Open Source communities," according to the announcement, by "nurturing the growth of more highly skilled professionals," with the OSI encouraging more people to get certifications for employers. The Open Source movement "has never been in greater need of educated professionals," says OSI executive director Stefano Maffulli, "to drive the next leap forward in Open Source understanding, innovation, and adoption... "This partnership with LPI is one in a series of initiatives that will increase accessibility to the certifications and community participation that Open Source needs to thrive." And the LPI's executive director says it's their group's mission "to promote the use of open source by supporting the people who work with it. A closer relationship with OSI makes a valuable contribution to this effort." The move "reaffirms the commitment of LPI and OSI to enhance the adoption of Linux and Open Source technology," according to the announcement.

Read more of this story at Slashdot.

FreeBSD To See Better Laptop Support With Investment Backed By AMD, Dell & Framework

✇Phoronix
Par : Michael Larabel
28 septembre 2024 à 14:47
Following AMD and FreeBSD Foundation collaborations and the Sovereign Tech Fund making a big investment into FreeBSD, the FreeBSD Foundation and Quantum Leap Research have announced a $750,000 USD commitment to improve laptop support on this BSD operating system with backing by Dell, AMD, and Framework Computer...

Et si les GeForce RTX 5090 et 5080 évoluaient vers plus de VRAM lors d'un Refresh ?

✇Hardware & Co - Actualités
Par : contact@hardwareand.co (Thibaut GALONNIER)
28 septembre 2024 à 13:29

Cette semaine, les rumeurs sur les cartes haut de gamme GeForce animées par un GPU Blackwell ont fleuri. Il faut dire que c'était assez calme sur le sujet, et que l'arrivée de fuites annonce toujours une mise en chantier quelque part. Telle la fourmilière qui se remet au travail après une bonne nuit...

Blumenkrantz Proposes Workflow Improvements For Wayland Protocols

✇Phoronix
Par : Michael Larabel
28 septembre 2024 à 13:35
It's been a busy week for Valve Linux graphics software engineer Mike Blumenkrantz. Besides hacking on Mesa's Zink OpenGL-on-Vulkan driver implementation, this week his latest target was working to help accelerate the pace of Wayland protocol development. He's been working through a few proposals like addressing NACK usage for how Wayland protocols can be rejected and in ending out the week he has drafted some additional workflow improvements...

EPA Must Address Fluoridated Water's Risk To Children's IQs, US Judge Rules

✇Slashdot
Par : BeauHD
28 septembre 2024 à 13:00
An anonymous reader quotes a report from Reuters: A federal judge in California has ordered the U.S. Environmental Protection Agency to strengthen regulations for fluoride in drinking water, saying the compound poses an unreasonable potential risk to children at levels that are currently typical nationwide. U.S. District Judge Edward Chen in San Francisco on Tuesday sided (PDF) with several advocacy groups, finding the current practice of adding fluoride to drinking water supplies to fight cavities presented unreasonable risks for children's developing brains. Chen said the advocacy groups had established during a non-jury trial that fluoride posed an unreasonable risk of harm sufficient to require a regulatory response by the EPA under the Toxic Substances Control Act. "The scientific literature in the record provides a high level of certainty that a hazard is present; fluoride is associated with reduced IQ," wrote Chen, an appointee of Democratic former President Barack Obama. But the judge stressed he was not concluding with certainty that fluoridated water endangered public health. [...] The EPA said it was reviewing the decision. "The court's historic decision should help pave the way towards better and safer fluoride standards for all," Michael Connett, a lawyer for the advocacy groups, said in a statement on Wednesday.

Read more of this story at Slashdot.

TeamGroup lance sa DDR5 T-FORCE et T-CREATE "dual-mode", simplifiant un peu les choses !

✇Hardware & Co - Actualités
Par : contact@hardwareand.co (Matthieu S.)
28 septembre 2024 à 11:30

Depuis 2022, les fabricants certifient leurs kits mémoire DDR5 généralement soit pour une compatibilité avec le XMP (Extreme Memory Profile) d’Intel, soit le EXPO (Extended Profils for Overclocking) d’AMD, ce qui a pour conséquence de compliquer un peu le choix pour l’acheteur. Certes, de manière gé...

La petite auto-psy des dessins de Flock !

✇Next.ink
Par : Flock
28 septembre 2024 à 11:37
Plongée dans un inconnu
La petite auto-psy des dessins de Flock !

Salut!
Cette semaine, tout a coïncidé pour que je fasse un petit interlude à cette rubrique hebdomadaire : celle de la semaine dernière, une réunion générale sur Paris mercredi, la météo… Et puis je me suis dit qu’exceptionnellement parler de ça ne ferait pas de mal, ça vous permettra de voir l’envers du décor, un autre aspect d’une petite fraction de la rédac, pour compléter la mise à nu de l’équipe via ses portraits déjà diffusés, notamment ceux de Seb et Vincent. Je vous parle pas mal de course au final, pour le détail je m’y suis remis aussi physiquement, la métaphore tombait à pic !

Bonne lecture à vous, j’espère que ma petite tambouille vous plaira !


Il reste 87% de l'article à découvrir.
Vous devez être abonné•e pour lire la suite de cet article.
Déjà abonné•e ? Générez une clé RSS dans votre profil.

Jets From Black Holes Cause Stars To Explode, Hubble Reveals

✇Slashdot
Par : BeauHD
28 septembre 2024 à 10:00
Black hole jets, which spew near-light-speed particle beams, can trigger nearby white dwarf stars to explode by igniting hydrogen layers on their surfaces. "We don't know what's going on, but it's just a very exciting finding," said Alec Lessing, an astrophysicist at Stanford University and lead author of a new study describing the phenomenon, in an ESA release. Gizmodo reports: In the recent work -- set to publish in The Astrophysical Journal and is currently hosted on the preprint server arXiv -- the team studied 135 novae in the galaxy M87, which hosts a supermassive black hole of the same name at its core. M87 is 6.5 billion times the mass of the Sun and was the first black hole to be directly imaged, in work done in 2019 by the Event Horizon Telescope Collaboration. The team found twice as many novae erupting near M87's 3,000 light-year-long plasma jet than elsewhere in the galaxy. The Hubble Space Telescope also directly imaged M87's jet, which you can see below in luminous blue detail. Though it looks fairly calm in the image, the distance deceives you: this is a long tendril of superheated, near-light speed particles, somehow triggering stars to erupt. Though previous researchers had suggested there was more activity in the jet's vicinity, new observations with Hubble's wider-view cameras revealed more of the novae brightening -- indicating they were blowing hydrogen up off their surface layers. "There's something that the jet is doing to the star systems that wander into the surrounding neighborhood. Maybe the jet somehow snowplows hydrogen fuel onto the white dwarfs, causing them to erupt more frequently," Lessing said in the release. "But it's not clear that it's a physical pushing. It could be the effect of the pressure of the light emanating from the jet. When you deliver hydrogen faster, you get eruptions faster." The new Hubble images of M87 are also the deepest yet taken, thanks to the newer cameras on Hubble. Though the team wrote in the paper that there's between a 0.1% to 1% chance that their observations can be chalked up to randomness, most signs point to the jet somehow catalyzing the stellar eruptions.

Read more of this story at Slashdot.

be quiet! affiche deux gammes de boitiers type aquarium, les light Base 900 et 600

✇Hardware & Co - Actualités
Par : contact@hardwareand.co (Thibaut GALONNIER)
28 septembre 2024 à 09:07

be quiet! passe au boitier aquarium, très en vogue en ce moment. La gamme se nomme Light Base, et se décompose en 4 séries, LB 900 FX, LB 900 DX, LB 600 LX et LB 600 DX. Chaque série se décline en noir ou blanc, ce qui fait donc pas moins de 8 boitiers qui arrivent sur le marché. Comme vous le remar...

[MAJ] On connaitrait les spécifications techniques de la GeForce RTX 5080 de NVIDIA

✇CowcotLand news
28 septembre 2024 à 09:17

Ce matin, des informations plus précises semblent avoir fuité vis-à-vis des futures cartes graphiques GeForce RTX 5000 de NVIDIA, et plus précisement sur les modèles RTX 5080 et RTX 5090. On s'intéresse d'abord à la RTX 5080. Nous serons sur un GPU Blackwell GB203-400-A1 qui aura le droit à 10752 Cuda Cores. Du côté de la mémoire, les verts seraient sur une base de 16 Go de GDDR7 en 256 bits, pour une bande passante théorique de 784 Go/s si la mémoire est en 28 Gbps. […]

Lire la suite

Les prix des cartes graphiques AMD, Intel et NVIDIA semaine 39-2024 : le haut de gamme des rouges à la baisse, la 4090 à la hausse

✇CowcotLand news
28 septembre 2024 à 09:11

Nous allons commencer par vous dire que nous n'avons pas de changement chez les bleus. Par contre, chez les rouges, nous avons la RX 7900 XT qui baisse de 38 euros, elle passe de 738.90 euros à 699.90 euros. La RX 7900 XTX est également à la baisse, elle passe de 979.90 euros à 949.90 euros, elle perd donc 30 euros cette semaine. Les deux cartes sont à leur prix le plus bas. Notons que la RX 7600 XT prend 5 euros cette semaine. […]

Lire la suite

Les vidéos hardware de la semaine 39-2024 : Gros laptop Gamer et petite console

✇CowcotLand news
28 septembre 2024 à 07:53

Cette semaine, deux vidéos à notre actif. La première portait sur un gros laptop Gamer de chez GIGABYTE et qui se nomme le AORUS X17. Une machine qui a le droit à une RTX 4090... Après, nous avons passé un de temps avec un autre engin pour les joueurs, mais qui se veut plus petit. C'est la console MSI Claw qui est passée entre les mains expertes de notre Vanseb. En partenariat avec GVGMALL: Windows 10 Pro (13U+20AC) : https://biitt.ly/c8V0M Windows 11 Pro (19U+20AC) : https://biitt.ly/7ctfn […]

Lire la suite
❌
❌