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Neuromancer49

@ Neuromancer49 @midwest.social

Posts
1
Comments
104
Joined
3 yr. ago

  • Removed

    Retraction Note: Origin and cross-species transmission of bat coronaviruses in China - Nature Communications [Dec 19th,2024] [News]

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  • Nope, not significant. The paper was retracted because a few extra sequences were included, but the conclusion remained the same when they redid the analysis.

    ETA: Link to the new paper https://doi.org/10.1038/s41467-020-17687-3

  • 19 December 2024

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  • Strangely, was never an issue for me. I usually wear thick rimmed plastic ones, the metal in the screws was never pulled into the machine.

    But, if I was getting an MRI of my head I would take them off. Mostly because they didn't fit. But they could also distort the images or, worst case scenario, absorb the radio waves and heat up.

  • 19 December 2024

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  • Ramp-down isn't really possible. The idea behind the super cooled coil is that once activated, it takes almost zero energy to maintain the (very strong, like 300,000x more than Earth's) magnetic field. A super cooled coil can keep an electric current for a very, very long time. The magnet is ALWAYS ON, and the door into the room has a big warning about it. All employees in the same building as the MRI should be trained to Read The Fucking Sign. Cop should have, too.

    It would take a huge amount of force to pry the gun free. I would argue the risk of prying the gun free and it discharging is much worse than the cost to reactivate the magnet. If the gun was hot, I don't know if they could have even cleared the magazine at that point. The bolt or magazine may have been stuck in place.

    During the very early days of COVID I walked into the magnet room with a homemade reusable mask. It had a twist tie in the nose to keep it from fogging my glasses. I was 10 feet away from the magnet when I felt it start to be pulled free from my face. I've never noped out of a room more quickly in my life...

  • 19 December 2024

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  • I love these stories so much. Anytime a metal object is sucked into an MRI, they experience "projectile acceleration". Since the strength of magnetic pull increases the closer an object gets, objects will accelerate rapidly. I'd argue a live rifle stuck to the MRI is an emergency. The gun could have discharged. Then I'd sue the hell outta the city.

  • 19 December 2024

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  • I worked in MRI for many years. There's a big, red button behind a plexiglass access window that releases all the liquid helium which keeps the superconductivity of the big-ass magnetic coil. It's called a quench, it's loud, dangerous, and only to be used in life-or-death emergencies, e.g. person is trapped between an oxygen tank and the MRI. Pressing the button kills the MRI and it can cost millions of dollars to reactivate it.

    I worked with these things for almost 10 years. The urge never abates, we just learn to manage it.

  • I'm literally a thinking lump of fat

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  • Don't sell yourself short. It's a salty lump of fat.

  • Are implanted subdermal trackers in movies at all a realistic possibility?

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  • Subdermal is a lot easier than implanting in other compartments, e.g., intracranial. For example, hormonal birth control exists as an implant.

    But, there's fascinating research into how the brain rejects implanted electrodes, e.g., neuralink. Lots of work has been done developing materials that are less likely to be rejected by the brain and the brain's immune system. For example, electrodes can be coated in chemicals to make them less harsh to the body, and flexible materials can be used.

  • Do you think things will get better?

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  • Unfortunately there's a lot of truth in that statement, especially in the case of rare disease. It's really difficult to convince a company to spend billions to develop a treatment that will only cure 1 in 100,000 people without letting them charge an arm and a leg, and giving them a very long exclusivity deal so they can continue to charge high prices. So much of that cost to develop is due to the dozens of other failed drugs and formulations they tried on their way to success.

    I don't have a solution for the problem, and I'm always a little suspicious of anyone who claims it's easy to solve. I think the UK has a decent idea, the NHS basically decides if the cost of a drug will be covered by insurance by comparing the expected benefit and the current cost. If the ratio is too skewed, they refuse to cover the medication. In theory, this should be an incentive for a company to charge less. In practice, it leads to some companies choosing not to market in the UK.

  • Do you think things will get better?

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  • Here's a bit of hope for you, scientists have figured out how to trick the body into producing any protein or antibody they want, through technology like gene therapy and mRNA vaccines. We're about to cure a lot of diseases that used to be 100% fatal. Diseases that kill kids and adults alike.

    Most things seem to be getting worse these days, but at least we're making progress in other areas.

  • Mindustry: an extremely high quality (and difficulty) FOSS tower defense game

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  • Unironically, I had to delete this game from my phone because I wasn't getting work done. This game slaps.

  • US 'click to cancel' rule to tackle subscription traps

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  • Jfc just spent 15 minutes trying to cancel a newspaper subscription this morning. Shame I couldn't wait six months to do so.

  • Video Games Are a Key Battleground in the Propaganda War

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  • Trump insults Detroit during speech … in Detroit

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  • Ohioan here. You're not wrong. Sorry about JD Vance.

  • Project Analyzing Human Language Usage Shuts Down Because ‘Generative AI Has Polluted the Data’

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  • Devastating loss for the science community. I used this database in my PhD, and didn't expect it to shut down ever.

  • Does your company do phishing simulations?

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  • To be fair, my job involves very sensitive medical data. We've seen entire businesses shut down because of data breaches.

  • Does your company do phishing simulations?

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  • I'm 100% so far at my job, but we had one test that tricked somewhere around 30% of employees. They spoofed everyone's supervisor and made it look like an urgent Teams message was pending.

    Usually, if you get phished you lose your bonus. They made an exception that one time.

  • What is the largest file transfer you have ever done?

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  • In grad school I worked with MRI data (hence the username). I had to upload ~500GB to our supercomputing cluster. Somewhere around 100,000 MRI images, and wrote 20 or so different machine learning algorithms to process them. All said and done, I ended up with about 2.5TB on the supercomputer. About 500MB ended up being useful and made it into my thesis.

    Don't stay in school, kids.

  • [Purchased Bambu A1 mini] Low End FDM for Miniatures, Hobby Parts, and Messing Around?

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  • I'm not sure I agree here - I think the resin printer might not be a good entry point, but I'm curious to hear what others think. I've heard resin printers require special ventilation and the photo-resin is carcinogenic. Once dialed in, an FDM can do pretty great for detailed parts. Especially with a smaller nozzle. So I'm not convinced jumping straight into a resin printer is wise.

    I used my Ender 3 for a few years making miniatures, and they came out pretty great. Of course, then I tried switching to a larger nozzle and I still haven't managed to get it running... but that's my fault.

  • Rent monopoly crackdown continues as FBI raids corporate landlord for 18 Arizona properties

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  • They raised my rent 20% over two years and priced me out of two apartments. Glad to see progress.