Shared posts

13 Apr 19:40

We Never Agreed To Only Buy HP Ink, Say Printer Owners

by msmash
HP "sought to take advantage of customers' sunk costs," printer owners claimed this week in a class action lawsuit against the hardware giant. The Register: Lawyers representing the aggrieved were responding in an Illinois court to an earlier HP motion to dismiss a January lawsuit. Among other things, the plaintiffs' filing stated that the printer buyers "never entered into any contractual agreement to buy only HP-branded ink prior to receiving the firmware updates." They allege HP broke several anti-competitive statutes, which they claim: "bar tying schemes, and certain uses of software to accomplish that without permission, that would monopolize an aftermarket for replacement ink cartridges, when these results are achieved in a way that 'take[s] advantage of customers' sunk costs.'" In the case, which began in January, the plaintiffs are arguing that HP issued a firmware update between late 2022 and early 2023 that they allege disabled their printers if they installed a replacement cartridge that was not HP-branded. They are asking for damages that include the cost of now-useless third-party cartridges and an injunction to disable the part of the firmware updates that prevent the use of third-party ink.

Read more of this story at Slashdot.

25 Mar 22:50

Russian state media blames Ukraine and West for attack

Despite evidence the Islamic State group was behind Friday's outrage, Russian news reflects the Kremlin's narrative.
15 Mar 14:47

Caffeine Makes Fuel Cells More Efficient, Cuts Cost of Energy Storage

by BeauHD
Dan Robinson reports via The Register: Adding caffeine can enhance the efficiency of fuel cells, reducing the need for platinum in electrodes and significantly reducing the cost of making them, according to researchers in Japan. [...] The study, published in the journal Communications Chemistry, concerns the catalysis process at the cathode of a fuel cell and making this reaction more efficient. Fuel cells work somewhat like batteries. They generate power by converting the chemical energy of a fuel (or electrolyte) and an oxidizing agent into electricity. This is typically hydrogen as a fuel and oxygen as an oxidizer. Unlike batteries with limited lifespans, fuel cells can generate power as long as fuel is supplied. The hydrogen undergoes oxidation at the anode, producing hydrogen ions and electrons. The ions move through the hydrogen electrolyte to the cathode, while the electrons flow through an external circuit, generating electricity. At the cathode, oxygen combines with the hydrogen ions and electrons, resulting in water as a by-product. However, this water impacts the performance of the fuel cell, reacting with the platinum (Pt) to form a layer of platinum hydroxide (PtOH) on the electrode and interfering with the catalysis of the oxygen reduction reaction (ORR), according to the researchers. To maintain efficient operation, fuel cells require a high Pt loading (greater platinum content), which significantly ups the costs of fuel cells. A quick look online found market prices for platinum of $29.98 per gram, or $932.61 per ounce, at the time of writing. The researchers found that adding caffeine can improve the ORR activity of platinum electrodes 11 fold, making the reaction more efficient. If you are wondering (as we were) how they came to be experimenting with this, the paper explains that modifying electrodes with hydrophobic material is known to be an effective method for enhancing ORR. Caffeine is less toxic than other hydrophobic substances, and it activates the hydrogen evolution and oxidation reactions of Pt nanoparticles and caffeine doped carbons. Got that? Chiba University's work was led by Professor Nagahiro Hoshi at the Department of Applied Chemistry and Biotechnology. He explained that the researchers found a notable improvement in the electrode's ORR activity with an increase in caffeine concentration in the electrolyte. This forms a thin layer on the electrode's surface, effectively preventing the formation of PtOH, but the effect depends on the orientation of the platinum atoms on the electrode's surface. The paper refers to these as Pt(100), Pt(110) and Pt(111), with the latter two showing increased ORR activity, while there was no noticeable effect with Pt(100). The researchers do not explain if this latter effect might be a problem, but instead claim that their discovery has the potential to improve the designs of fuel cells and lead to more widespread adoption.

Read more of this story at Slashdot.

14 Mar 06:43

Trying Out Microsoft's Pre-Release OS/2 2.0

by BeauHD
Last month, the only known surviving copy of 32-bit OS/2 from Microsoft was purchased for $650. "Now, two of the internet's experts in getting early PC operating systems running today have managed to fire it up, and you can see the results," reports The Register. From the report: Why such interest in this nearly third-of-a-century old, unreleased OS? Because this is the way the PC industry very nearly went. This SDK came out in June 1990, just one month after Windows 3.0. If 32-bit OS/2 had launched as planned, Windows 3 would have been the last version before it was absorbed into OS/2 and disappeared. There would never have been any 32-bit versions: no Windows NT, no Windows 95; no Explorer, no Start menu or taskbars. That, in turn, might well have killed off Apple as well. No iPod, no iPhone, no fondleslabs. Twenty-first century computers would be unimaginably different. The surprise here is that we can see a glimpse of this world that never happened. The discovery of this pre-release OS shows how very nearly ready it was in 1990. IBM didn't release its solo version until April 1992, the same month as Windows 3.1 -- but now, we can see it was nearly ready two years earlier. That's why Michal Necasek of the OS/2 Museum called his look The Future That Never Was. He uncovered a couple of significant bugs, but more impressively, he found workarounds for both, and got both features working fine. OS/2 2 could run multiple DOS VMs at once, but in the preview, they wouldn't open -- due to use of an undocumented instruction which Intel did implement in the Pentium MMX and later processors. Secondly, the bundled network client wouldn't install -- but removing a single file got that working fine. That alone is a significant difference between Microsoft's OS/2 2.0 and IBM's version: Big Blue didn't include networking until Warp Connect 3 in 1995. His verdict: "The 6.78 build of OS/2 2.0 feels surprisingly stable and complete. The cover letter that came with the SDK stressed that Microsoft developers had been using the OS/2 pre-release for day-to-day work." Over at Virtually Fun, Neozeed also took an actual look at Microsoft OS/2 2.0, carefully recreating that screenshot from PC Magazine in May 1990. He even managed to get some Windows 2 programs running, although this preview release did not yet have a Windows subsystem. On his Internet Archive page, he has disk images and downloadable virtual machines so that you can run this yourself under VMware or 86Box.

Read more of this story at Slashdot.

01 Mar 22:12

Worldwide Obesity Tops 1 Billion

by msmash
Rates of obesity in the U.S. and around the world have more than doubled over the past three decades, according to a new study in The Lancet. From a report: More than 1 billion people worldwide now have obesity, a sign of worsening nutrition that's also raising the risk of leading causes of death and disease such as high blood pressure, cancer and diabetes. The global rate of obesity more than doubled among women, from 8.8% to 18.5%, and nearly tripled in men, from 4.8% to 14.0%, between 1990 and 2022, according to research that pulls from over 3,600 studies. The obesity rate among children and adolescents increased by roughly four times, from 1.7% to 6.9% in girls and 2.1% to 9.3% in boys. Just over 4 in 10 adults and 2 in 5 kids in the U.S. are obese. The U.S. now has the world's 10th-highest male obesity rate and 36th-highest female obesity rate. In 1990, the U.S. had the world's 17th-highest male obesity rate and the 41st-highest female obesity rate.

Read more of this story at Slashdot.

21 Feb 21:49

Light Leap Years

When Pope Gregory XIII briefly shortened the light-year in 1582, it led to navigational chaos and the loss of several Papal starships.
13 Feb 15:54

Molly White Reviews Blockchain Book

by Bruce Schneier
Luciano

;-)

Molly White—of “Web3 is Going Just Great” fame—reviews Chris Dixon’s blockchain solutions book: Read Write Own:

In fact, throughout the entire book, Dixon fails to identify a single blockchain project that has successfully provided a non-speculative service at any kind of scale. The closest he ever comes is when he speaks of how “for decades, technologists have dreamed of building a grassroots internet access provider”. He describes one project that “got further than anyone else”: Helium. He’s right, as long as you ignore the fact that Helium was providing LoRaWAN, not Internet, that by the time he was writing his book Helium hotspots had long since passed the phase where they might generate even enough tokens for their operators to merely break even, and that the network was pulling in somewhere around $1,150 in usage fees a month despite the company being valued at $1.2 billion. Oh, and that the company had widely lied to the public about its supposed big-name clients, and that its executives have been accused of hoarding the project’s token to enrich themselves. But hey, a16z sunk millions into Helium (a fact Dixon never mentions), so might as well try to drum up some new interest!

06 Feb 18:13

Karolina Shiino: Ukraine-born Miss Japan gives up crown following affair

The controversial Ukraine-born model has resigned after a report on her relations with a married man.
30 Nov 07:20

Sticky Vicky: Legendary Benidorm dancer dies aged 80

Luciano

Marca España.

The X-rated performer had a legendary status among Brits travelling to the Spanish resort on holiday.
21 Nov 06:45

Taiwan's opposition drama ends with no deal

Despite a week-long attempt, there will be no united opposition ticket in the presidential election.
30 Sep 10:05

South China Sea: Philippines' Marcos defends removing Chinese barrier

President says Manila's defence of its territory does not mean it is 'looking for trouble'.
16 Sep 06:47

Friday Squid Blogging: Cleaning Squid

by Bruce Schneier

Two links on how to properly clean squid.

I learned a few years ago, in Spain, and got pretty good at it.

As usual, you can also use this squid post to talk about the security stories in the news that I haven’t covered.

Read my blog posting guidelines here.

19 Jul 15:14

Ukraine war: Russia strikes Ukraine grain after ending sea deal

Luciano

Hey Vladimir, please enllighten me: how does this help de-nazifying Ukraine?

Attacks on Black Sea ports destroy 60,000 tonnes of grain and damage infrastructure, officials say.
10 Jul 16:28

Putin meets Prigozhin: Getting to grips with latest twist in Wagner saga

The latest twist in Russia's mutiny saga surpasses Dostoyevsky for mystery, Steve Rosenberg says.
02 Jun 06:29

AI-Controlled Drone Goes Rogue, Kills Human Operator In USAF Simulated Test

by BeauHD
An anonymous reader quotes a report from Motherboard: An AI-enabled drone killed its human operator in a simulated test conducted by the U.S. Air Force in order to override a possible "no" order stopping it from completing its mission, the USAF's Chief of AI Test and Operations revealed at a recent conference. At the Future Combat Air and Space Capabilities Summit held in London between May 23 and 24, Col Tucker 'Cinco' Hamilton, the USAF's Chief of AI Test and Operations held a presentation that shared the pros and cons of an autonomous weapon system with a human in the loop giving the final "yes/no" order on an attack. As relayed by Tim Robinson and Stephen Bridgewater in a blog post for the host organization, the Royal Aeronautical Society, Hamilton said that AI created "highly unexpected strategies to achieve its goal," including attacking U.S. personnel and infrastructure. "We were training it in simulation to identify and target a Surface-to-air missile (SAM) threat. And then the operator would say yes, kill that threat. The system started realizing that while they did identify the threat at times the human operator would tell it not to kill that threat, but it got its points by killing that threat. So what did it do? It killed the operator. It killed the operator because that person was keeping it from accomplishing its objective," Hamilton said, according to the blog post. He continued to elaborate, saying, "We trained the system -- 'Hey don't kill the operator -- that's bad. You're gonna lose points if you do that'. So what does it start doing? It starts destroying the communication tower that the operator uses to communicate with the drone to stop it from killing the target."

Read more of this story at Slashdot.

14 May 08:29

Will AI Just Turn All of Human Knowledge into Proprietary Products?

by EditorDavid
"Tech CEOs want us to believe that generative AI will benefit humanity," argues an column in the Guardian, adding "They are kidding themselves..." "There is a world in which generative AI, as a powerful predictive research tool and a performer of tedious tasks, could indeed be marshalled to benefit humanity, other species and our shared home. But for that to happen, these technologies would need to be deployed inside a vastly different economic and social order than our own, one that had as its purpose the meeting of human needs and the protection of the planetary systems that support all life... " AI — far from living up to all those utopian hallucinations — is much more likely to become a fearsome tool of further dispossession and despoilation... What work are these benevolent stories doing in the culture as we encounter these strange new tools? Here is one hypothesis: they are the powerful and enticing cover stories for what may turn out to be the largest and most consequential theft in human history. Because what we are witnessing is the wealthiest companies in history (Microsoft, Apple, Google, Meta, Amazon ...) unilaterally seizing the sum total of human knowledge that exists in digital, scrapable form and walling it off inside proprietary products, many of which will take direct aim at the humans whose lifetime of labor trained the machines without giving permission or consent. This should not be legal. In the case of copyrighted material that we now know trained the models (including this newspaper), various lawsuits have been filed that will argue this was clearly illegal... The trick, of course, is that Silicon Valley routinely calls theft "disruption" — and too often gets away with it. We know this move: charge ahead into lawless territory; claim the old rules don't apply to your new tech; scream that regulation will only help China — all while you get your facts solidly on the ground. By the time we all get over the novelty of these new toys and start taking stock of the social, political and economic wreckage, the tech is already so ubiquitous that the courts and policymakers throw up their hands... These companies must know they are engaged in theft, or at least that a strong case can be made that they are. They are just hoping that the old playbook works one more time — that the scale of the heist is already so large and unfolding with such speed that courts and policymakers will once again throw up their hands in the face of the supposed inevitability of it all... [W]e trained the machines. All of us. But we never gave our consent. They fed on humanity's collective ingenuity, inspiration and revelations (along with our more venal traits). These models are enclosure and appropriation machines, devouring and privatizing our individual lives as well as our collective intellectual and artistic inheritances. And their goal never was to solve climate change or make our governments more responsible or our daily lives more leisurely. It was always to profit off mass immiseration, which, under capitalism, is the glaring and logical consequence of replacing human functions with bots. Thanks to long-time Slashdot reader mspohr for sharing the article.

Read more of this story at Slashdot.

03 Apr 21:57

Less Than Half of US Workers Use All Their Vacation Days

by msmash
Spring break is here, and summer vacations are just around the bend. But while increasingly stressed-out US workers say having paid time off is critical, many still don't even take all that they're allowed. From a report: Only 48% of US workers say they use all their vacation days, according to a new survey from Pew Research Center. Those who don't take all their time off say it's because they don't need it, or they worry about falling behind at work or feel badly about co-workers carrying their load. A few even think vacation time hurts their chances for promotions or could cost them their job. There is growing anxiety in the labor force with layoffs spreading, hiring slowing and organizations cutting perks and other costs. Last month, the job site Indeed said it was reducing headcount because it's "simply too big for what lies ahead" -- an excuse used by many companies to justify recent cutbacks. It's no wonder that workers are exhausted.

Read more of this story at Slashdot.

09 Dec 17:58

Gut Bacteria Are Linked To Depression

by BeauHD
Two studies published Tuesday in the journal Nature Communications found a link between several types of bacteria in the gut and depressive symptoms. The first study, titled "Gut microbiome-wide association study of depressive symptoms," reports: Here we investigate the relation of fecal microbiome diversity and composition with depressive symptoms in 1,054 participants from the Rotterdam Study cohort and validate these findings in the Amsterdam HELIUS cohort in 1,539 subjects. We identify association of thirteen microbial taxa, including genera Eggerthella, Subdoligranulum, Coprococcus, Sellimonas, Lachnoclostridium, Hungatella, Ruminococcaceae (UCG002, UCG003 and UCG005), LachnospiraceaeUCG001, Eubacterium ventriosum and Ruminococcusgauvreauiigroup, and family Ruminococcaceae with depressive symptoms. These bacteria are known to be involved in the synthesis of glutamate, butyrate, serotonin and gamma amino butyric acid (GABA), which are key neurotransmitters for depression. Our study suggests that the gut microbiome composition may play a key role in depression. The second study, titled "The gut microbiota and depressive symptoms across ethnic groups," reports: Both the microbiome and depressive symptom levels vary substantially across ethnic groups. Thus, any intervention for depression targeting the microbiome requires understanding of microbiome-depression associations across ethnicities. Analyzing data from the HELIUS cohort, we characterize the gut microbiota and its associations with depressive symptoms in 6 ethnic groups (Dutch, South-Asian Surinamese, African Surinamese, Ghanaian, Turkish, Moroccan; N=3211), living in the same urban area. Diversity of the gut microbiota, both within (a-diversity) and between individuals (B-diversity), predicts depressive symptom levels, taking into account demographic, behavioural, and medical differences. These associations do not differ between ethnic groups. Further, B-diversity explains 29%-18% of the ethnic differences in depressive symptoms. Bacterial genera associated with depressive symptoms belong to mulitple families, prominently including the families Christensenellaceae, Lachnospiraceae, and Ruminococcaceae. In summary, the results show that the gut microbiota are linked to depressive symptom levels and that this association generalizes across ethnic groups. Moreover, the results suggest that ethnic differences in the gut microbiota may partly explain parallel disparities in depression. The Wall Street Journal shared (paywalled) the findings.

Read more of this story at Slashdot.

18 Nov 18:50

World Cup 2022: Alcohol sales banned at World Cup stadiums in Qatar

Luciano

And now: thousands of people discover football is boring after they spend huge amounts of money traveling to World Cup

Alcohol will not be sold to fans at the World Cup's eight stadiums in Qatar after Fifa changes its policy two days before the start of the tournament.
08 Nov 12:52

Low Notes Really Do Get People Dancing, Research Finds

by msmash
When it comes to getting into the groove on the dancefloor, it really is all about the bass, researchers have found. From a report: Scientists say when very low frequency (VLF) sound was introduced during a live electronic music event, gig-goers moved more even though they could not hear the frequencies. "This is real world -- real electronic music dance concert -- validation that the bass really does make people dance more, and this isn't just something that comes from our conscious awareness," said Dr Daniel Cameron, a neuroscientist and first author of the work from McMaster University in Canada. Cameron and colleagues note that previous studies suggested music that induces dance has more low frequency sound, and that low pitches help people to move in time to music. However, it was not clear this impact of low frequencies would be seen in the real world, or when such sounds are not consciously detectable. Writing in the journal Current Biology, the team report how they set up an electronic music concert by the Canadian duo Orphx at McMaster and asked attenders to wear motion-capture headbands before turning on and off specialised VLF speakers every 2.5 minutes during the 55-minute performance. Results from 43 attenders who agreed to wear a headband revealed they moved 11.8% more, on average, when the VLF speakers were turned on. Cameron noted this meant people danced more vigorously, or with more exaggerated movements. At the end of the concert, 51 attenders completed a questionnaire that asked whether they could feel the music in their body, and whether the bodily sensations affected their compulsion to move.

Read more of this story at Slashdot.

28 Oct 20:57

How a Redditor Ended Up With an Industrial-Grade Netflix Server

by msmash
A Redditor says they've managed to get a hold of an old Netflix server for free, and has posted a detailed online look at the once mysterious hardware. The devices were part of Netflix's Open Connect Content Delivery Network (CDN), and can often be found embedded within major ISP networks to ensure your Netflix streams don't suck. From a report: Reddit user PoisonWaffle3 said the ISP he currently works for has been offloading old Netflix servers as they upgrade to more modern equipment. In a Reddit thread titled "So I got a Netflix cache server..." he posted a photo of the server, which is bright Netflix red, and explained how he was curious about what's inside the boxes given how little public information was available. "All I could find online was overviews, installation/config guides for their proprietary software, etc.," he said. "No specs, no clue what was inside the red box." Dave Temkin, Netflix's former Vice President of Network Systems Infrastructure told Motherboard there's nothing too mysterious about what the servers can do, though they significantly help improve video streaming by shortening overall content transit time. "They're just an Intel FreeBSD box," he said. "We got Linux running on some of the generations of that box as well." Netflix's Open Connect Content Delivery Network hardware caches popular Netflix content to reduce overall strain across broadband networks. Netflix lets major broadband ISPs embed a CDN server on the ISP network for free; the shorter transit time then helps improve video delivery, of benefit to broadband providers and Netflix alike. It took all of three screws for PoisonWaffle3 to get inside the mysterious red unit, at which point users discovered a "fairly standard" Supermicro board, a single Xeon E5 2650L v2 processor, 64GB of DDR3 memory, and a 10 gigabit ethernet card. They also found 36 7.2TB 7200RPM drives and six 500GB Micron solid state drives, for a grand total of 262 terabytes of storage.

Read more of this story at Slashdot.

31 Aug 15:52

The Ashes of Four 'Star Trek' Actors Will Be Carried Into Deep Space

by EditorDavid
United Launch Alliance has been developing a heavy-lift space vehicle since 2014 (with investment from the U.S. military) called the Vulcan Centaur. So CNN reports that the ashes of the late Star Trek actress Nichelle Nichols "will head to deep space on a Vulcan rocket." Nichols' cremated remains will be aboard the first Celestis Voyager Memorial Spaceflight, which will launch from Cape Canaveral, Florida. Celestis, Inc., is a private company that conducts memorial spaceflights. Among the remains also aboard the flight will be the ashes of "Star Trek" creator Gene Roddenberry; his wife, Majel Barrett-Roddenberry, who played various roles in the show and films; and James Doohan, who played Montgomery "Scotty" Scott in the films and TV series.... The spaceflight will travel beyond NASA's James Webb Space Telescope and into interplanetary deep space. In addition to cremated remains, capsules onboard will also carry complete human genome DNA samples from willing participants. People can participate in the flight — by having DNA or loved ones' remains in a spaceflight container — for a price starting at $12,500, and reservations close August 31. (Celestis offers other voyages that don't travel as far, but can cost less than $5,000.) Ahead of the flight's liftoff, Celestis will host a three-day event with mission briefings, an astronaut-hosted dinner, launch site tours, an on-site memorial service and launch viewing. All events will be shown via webcast, according to Celestis. An announcement on the flight's site invites fans of Nichelle Nichols to "share your own story about how she inspired you and it will be sent into deep space aboard the first Celestis Voyager Memorial Spaceflight — the Enterprise Flight, launching later in 2022."

Read more of this story at Slashdot.

05 Jul 05:51

Mickey Mouse Could Soon Leave Disney As 95-Year Copyright Expiry Nears

by msmash
schwit1 writes: Mickey will be for the public domain in 2024, following U.S. copyright laws that state intellectual property on artistic work expires at the 95-year mark. When Mickey Mouse first appeared, Disney's copyright was protected for 56 years. The company supported the Copyright Act of 1976 which extended protections for 75 years. In 1998, Disney lobbied for a further extension. It is unclear whether the entertainment giant plans to make another move before 2023 to prevent Mickey from being moved into the public domain. Once copyright expires, anyone wishing to use characters from everyone's favorite rodent will not have to request permission or pay copyright charge.

Read more of this story at Slashdot.

15 Jun 15:16

Saudi authorities seize rainbow toys for promoting homosexuality

An official tells state TV the items "promote homosexual colours targeting the younger generation".
15 Jun 15:13

Hot coal walk leaves 25 injured in Switzerland

The group suffered burns after walking over a bed of coals as part of a team building exercise.
14 Jun 12:23

Haze Fan: China releases Bloomberg journalist on bail

Luciano

He leído 'hazte fan', y parecía mal pero creíble que la BBC hubiera llegado a eso.

Haze Fan of Bloomberg news was held 18 months ago and accused of threatening China's security.
22 May 18:16

Why Gov.UK Stopped Using jQuery

by EditorDavid
The head of the UK government's digital transformation unit recently announced a change to the nation's government services site gov.uk: they've "removed jQuery as a dependency for all frontend apps, meaning 32 KB of minified and compressed JavaScript was removed" for everything from selecting elements to attaching event listeners.... Nearly 84% of mobile pages used jQuery in 2021, points out a new essay at Gov.UK — before explaining why they decided not to: jQuery was an instrumental tool in a time when we really needed a way to script interactivity in a way that smoothed over the differing implementations of stuff like event handling, selecting elements, animating elements, and so on. The web is better because of jQuery — not just because it has such incredible utility, but because its ubiquity led to making what it provided part of the web platform itself. Nowadays, we can do just about anything jQuery can do in vanilla JavaScript... It really begs the question: Do we really need jQuery today? That's a question that GOV.UK has answered with a resounding "no".... This is a big deal when it comes to the user experience, because GOV.UK provides services and information online for The United Kingdom at scale. Not everyone is tapping away on their 2022 MacBook Pro on a rip-roarin' broadband connection. GOV.UK has to be accessible to everyone, and that means keepin' it lean.... dependencies matter when it comes to performance. Don't shortchange your users if the web platform can easily do the job a framework can. This level of commitment to the user experience from a institution that works at the scale GOV.UK does is commendable. I can only hope others follow in their footsteps.

Read more of this story at Slashdot.

13 May 12:59

Selection Bias

We carefully sampled the general population and found that most people are familiar with acquiescence bias.
08 Apr 18:50

Diabetes Successfully Treated Using Ultrasound In Preclinical Study

by BeauHD
Luciano

So it's not going to be gene therapy or mRNA or anything like that.

Across three different animal models researchers have demonstrated how short bursts of ultrasound targeted at specific clusters of nerves in the liver can effectively lower insulin and glucose levels. New Atlas reports: Reporting in the journal Nature Biomedical Engineering, a team led by GE Research, including investigators from the Yale School of Medicine, UCLA, and the Feinstein Institutes for Medical Research, demonstrated a unique non-invasive ultrasound method designed to stimulate specific sensory nerves in the liver. The technology is called peripheral focused ultrasound stimulation (pFUS) and it allows highly targeted ultrasound pulses to be directed at specific tissue containing nerve endings. "We used this technique to explore stimulation of an area of the liver called the porta hepatis," the researchers explained in a Nature briefing. "This region contains the hepatoportal nerve plexus, which communicates information on glucose and nutrient status to the brain but has been difficult to study as its nerve structures are too small to separately stimulate with implanted electrodes." The newly published study indicates short targeted bursts of pFUS at this area of the liver successfully reversed the onset of hyperglycaemia. The treatment was found to be effective in three separate animal models of diabetes: mice, rats and pigs. [...] The study found just three minutes of focused ultrasound each day was enough to maintain normal blood glucose levels in the diabetic animals. Studies in humans are currently underway to work out whether this method translates from animal studies. But there are other hurdles facing broad clinical deployment of the technique beyond simply proving it works. Current ultrasound tools used to perform this kind of pFUS technique require trained technicians. The researchers suggest the technology exists to simplify and automate these systems in a way that could be used by patients at home, but it will need to be developed before this treatment can be widely deployed.

Read more of this story at Slashdot.

11 Mar 20:07

False Dichotomy

There are two types of dichotomy: False dichotomies, true dichotomies, and surprise trichotomies.