fidzu : computers

"A major scientific review is challenging the idea that more protein is always better," reports ABC News: The review, led by pathologist and biomedical researcher Dudley Lamming and published in the journal Cell Press Blue, examined more than 350 studies involving humans, mice, insects, yeast, and other organisms. The review found that eating less protein, or less of certain amino acids that make up protein, may turn on body processes linked to healthier aging, as well as metabolism, the process by which the body turns food and drinks into energy... For adults who already get enough, eating more protein may offer little benefit, while some research suggests that eating less protein could support healthier aging... Lamming reviewed the effect of reducing protein in many body processes. One of the processes involves a hormone called FGF21. "There's an increase in a hormone called FGF21 that promotes energy expenditure [when protein intake is reduced]," Lamming said. "It essentially increases thermogenesis in your adipose tissue, so you don't just store fat, but actually burn it as fuel." This may help explain why some studies connect lower-protein diets with less body fat, better blood sugar control and a healthier metabolism. Eating less protein may also affect signals that tell cells when to grow, repair damage or recycle old cell parts. These jobs may play a role in aging. However, protein restriction is not the same as protein deficiency. The goal is not to deprive the body of an essential nutrient. Instead, the research raises the possibility that avoiding unnecessary excess could benefit some people who already consume enough... Before reaching for another high-protein product, a better question may be: How much protein does my body actually need?

Read more of this story at Slashdot.

02 Aug 2026 4:34pm GMT

"Scientists say they have detected promising signs that a planet orbiting a star 49 light-years from Earth could have an atmosphere," reports CNN, "making it potentially suitable for life." Called LHS 1140b, the object is about five times the mass of our planet, or a "super-Earth." This planet orbits around its star in the "Goldilocks zone," also known as the habitable zone, meaning its surface temperature is not too hot or too cold for liquid water to exist... "It appears to be consistent with Earth, meaning it might have an iron core and a silicate mantle, plus some sort of low-density component, which is probably a combination of water and, now we know, an atmosphere," [said Collin Cherubim, a planetary scientist and lead author of a paper on the finding, published July 16 in the journal Science]... If further observations confirm the findings, LHS 1140b would mark the first discovery of an atmosphere on a rocky planet in the habitable zone of another star... There is no evidence of life or a life-supporting atmosphere on LHS 1140b now, but Cherubim said he believes it's a formidable candidate for potential signatures of extraterrestrial life. "I think it's the best place to look for life outside the solar system at this point," he said. "It's mostly rocky, it's at the right temperature to support liquid water on the surface, and it has an atmosphere - those are the three key ingredients we look for..." Confirming the existence of an atmosphere on a rocky planet orbiting a red dwarf would be particularly exciting, Cherubim said, because the possibility of that happening is an open question in astronomy. "Can rocky planets have atmospheres around red dwarfs? This is the first bona fide yes," he said. "It's kind of a sigh of relief for a lot of us. But the jury's still out. Maybe this is a weird planet, and it's an oddball, or maybe it's the first of many. We don't know yet." Now "The James Webb Space Telescope is going to look at it," Cherubim told CNN, and "Hubble's going to look at it. Basically, everybody who can see it is going to be training their eyes on it." Michaël Gillon, research director of the Astrobiology Research Unit at Belgium's University of Liège warned CNN that no definitive proof exists that LHS 1140b possesses a substantial atmosphere. But if the detection of helium can be confirmed, the implications would be profound. "Until now, we had only limited evidence for atmospheres on temperate rocky exoplanets. Demonstrating that LHS 1140 b has retained a substantial atmosphere over billions of years would show that at least some habitable zone Super-Earths around red dwarfs can survive the intense early activity of their host stars."

Read more of this story at Slashdot.

02 Aug 2026 3:34pm GMT

The blog Linuxiac reports: Linux has crossed a major milestone in North America, with the open-source operating system now accounting for 10.65% of desktop usage in the region, according to Statcounter's latest figures for July 2026. The result places Linux firmly in double-digit territory for the first time in Statcounter's North American desktop operating system statistics. For comparison, Statcounter recorded Linux at 5.52% in June 2026, so the share nearly doubled in one month... However, the sharp monthly increase needs context. Statcounter's June figures included an "Unknown" category that accounted for 9.24% of North American desktop usage. Its reduction seems to have coincided with Linux's rise, possibly indicating better identification of previously unclassified traffic... Statcounter is not the only major web measurement platform showing Linux with a substantial presence on North American desktops. Cloudflare Radar data, filtered to desktop HTTP traffic from North America over the previous 28 days, also places Linux at a notably high level [9.4%]. StatCounter's data also shows Linux with an even larger market share of 11.87% in just the United States - and a 14.73% market share in India. Linux's market share in other world regions: Asia 7.17% Africa 5.71% Europe 5.49% South America 4.35% China 2.12% And here's how the Linux market share on other countries compare to India and the U.S. India 14.73% United States 11.87% Germany 7.24% UK 6.18% Canada 3.83% Australia 3.55% Linux's surge could be due to its use in automation or headless browser workloads, Linuxiac points out. But another possibility is "growing frustration with Windows hardware requirements, advertising, account integration, telemetry, and forced interface changes has pushed some users to explore alternatives..." "For now, the safest conclusion is that Linux has surpassed 10% of measured desktop web usage in North America according to Statcounter, not necessarily 10% of the region's installed desktop computer base."

Read more of this story at Slashdot.

02 Aug 2026 2:04pm GMT

NetBSD, the operating system specifically designed to run on anything from a supercomputer to a toothpick, just released version 11.0. There's a ton of changes and improvements here, such as a brand new port to RISC-V, which supports a number of the more popular RISC-V SoCs (sadly, not the one I have just yet). NetBSD 11.0 also adds initial support for the Qualcomm Snapdragon X Elite platform, as well as a port to the virt68k platform, which means the Motorola 68000 port in QEMU using paravirtualized devices. Speaking of virtualisation, they're also introducing a new MICROVM kernel for x86: New MICROVM kernel for x86, supporting both i386 and amd64, NetBSD 11.0 introduces a dedicated MICROVM kernel designed for extremely fast virtual machine boot, leveraging PVH boot, VirtIO MMIO, and multiple kernel optimizations, it can boot in about 10 ms on 2020-era x86 CPUs. ↫ NetBSD 11.0 release notes There's also improved support for Linux system calls in compat_linux, the npf firewall, and much more. Of course, the list of other improvements, buigfixes, and smaller changes is long, including many changes for old, outdated, or otherwise odd architectures and platforms, as is the NetBSD way. Which other operating system proudly lists substantial improvements to their PA-RISC, Motorola 68000, and Alpha ports, among others?

01 Aug 2026 9:14pm GMT

I have a policy to effectively never link to YouTube videos. I'll gladly make an exception for this one. Reflection is one of the most powerful concepts in Computer Science. Unfortunately, not every programming language is blessed enough to have it. In the 1980s, one company, Symbolics took the concept to the logical extreme. By representing EVERYTHING as objects; they created the most powerful (and inadvertently) least private operating system ever created! The company collapsed, but the ideas live on. Some modern languages got a full dose of reflection. Some…weren't so lucky. I ranked them all, and in the end I'll show you how I dragged C++ up a tier with my brand new runtime reflection library, CallMeMaybe! ↫ Laurie Wired The GitHub description of CallMeMaybe: CallMeMaybe (CMM) is a C++ runtime reflection library built on top of P2996 static reflection introduced in C++26. CMM purposefully mirrors many of the std::meta functions to provide a uniform interface, but allows runtime introspection, dynamic invocation, and instantiation by building a runtime reflection registry. Class members can be automatically traversed and reflected by simply adding ] as an annotation. CMM implements a custom type system to completely avoid RTTI requirements. ↫ CallMeMaybe GitHub page My YouTube linking policy will remain in place.

01 Aug 2026 9:05pm GMT

"We believe that a capture of Swift, an attempted capture of Swift, is very much in the cards."

01 Aug 2026 6:20pm GMT

Christopher Nolan's impressionistic remix of Homer's epic poem finds the man behind the myth.

01 Aug 2026 3:19pm GMT

Reddit may still be considering ending its licensing deal with Google.

01 Aug 2026 12:30pm GMT

This is just a short note on my blog that I have resigned from Arch Linux a package maintainer, developer and security team. I've spent around 10 years as an AUR maintainer, security team, Package Maintainer and then Developer. I implemented support for debug packages, did the initial POC work that would become the git migration and even somehow managed to pull of an online conference during The Plague with the help of others.

01 Aug 2026 12:00am GMT

Tcl, or the "Tool Command Language", created and released by John Ousterhout in 1990, deserves a place among the greatest products of the human mind. Especially when combined with its better known graphical user interface Toolkit - Tk. In 1997 Ousterhout was awarded the ACM Software System Award for Tcl/Tk, an award given to institutions or individuals recognized for developing software systems with a lasting influence, reflected in contributions to concepts, in commercial acceptance, or both. ↫ Armen Barsegyan Everything you could ever possibly want to know about Tcl/Tk. There's nothing to add here; if this is up your alley - and you know if it is - just go ahead and read it, and stop wasting time here.

31 Jul 2026 10:44pm GMT

Good morning from JetBrains Berlin office!

01 Jun 2026 12:00am GMT

Just trying to answer one simple question: What if the terminal was 3D?

11 May 2026 12:00am GMT