2.2 Animals and Study Design
The study comprised two cohorts of C57BL/6 mice: young adult (3 months old) and late middle-aged (18 months old). We chose 18 months old mice, as this mouse age is approximately equivalent to a 60-year-old human (Dutta and Sengupta 2016).
Addition of a source-paper link to complex science studies like this should be encouraged (if not mandatory) at the top of posts like this.
Real-world reports can be valuable to some readers who are non-plussed by journalistic interpretations.I don't see deception going on in this one; it's clear about its limits.
I had to laugh as I read this, but it feels so appropriate to the current state.
I will say off topic that, speaking to an early googler, there is actually documentation of meetings where they discussed what "don't be evil" meant and decided actual business options they should and should not pursue. It was not just a motto or a "code of conduct", but meant as and used to justify consequential actions.
This thing is going to explode. From this I have to imagine OpenAIs numbers are also going to be much worse than people imagine / what has been shared.
If you're not aware 3M (and other companies) now sell electrically de-bondable tape. It's used in consumer device manufacture where it would otherwise be expensive (or dangerous) to remove an item for replacement like a lithium battery.
Now a worn or damaged battery can be safely bonded down as it normally would with a PSA (pressure sensitive adhesive), but then after applying some 30V for a couple of minutes ions in the adhesive cause it to become easily and safely removable/repositionable.
Neat! Can anyone who's worked with the stuff give us some more detail? How strong is it in practice? At 245psi tensile strength that seems about half as strong as 3M 4200 (which is not bad!). How compatible is it with various substrates? Do you need a conductive substrate on both sides to apply the release voltage? How available is it for purchase if you aren't Apple or Samsung?
I only use it to help hold together some complex assemblies when putting them together so I can't speak to it's strengths, but:
> Do you need a conductive substrate on both sides to apply the release voltage?
Yes, you attach VCC to the substrate you want to remain bonded and GND to the substrate you want to detach.
> How available is it for purchase if you aren't Apple or Samsung?
You can just call up your usual 3M distributor and request it. It's over $2,000 for a 100 meter roll so it's not something you'll usually find in stock at your local Grainger but it's not some super-secret material only available to the biggest manufacturers.
If you're using sRGB with 16bit color you already have problems.
It is an 8bit per color hack that worked perfectly well with CRTs and early LCDs.
There were multiple different hacky versions with different vendors that were visually indistinguishable on displays of the day.
Even most modern displays are not really capable of more than 10bit color (RGB miniLED and QD-OLED barely are). Even REC2020 doesn't need 16bit.
sRGB doesn't even have a consistent gamma, and it's not anywhere close to uniformly covering the color volume. Why use it? DCI-P3 works fine.
Your eye also doesn’t have a consistent gamma, nor does the camera, now does any viewing technology. If you’re complaining about the slight linear section of many gamma curves, they are very important for avoiding various artifacts.
Well, there's all sort of different problems, but most modern display technologies both in software visual profile and hardware implementation use LUTs. When sRGB was born the monitors were unable to even meet it as a spec so some crazy simplifications were fine. Now we're using those bits to drive HDR monitors over much larger color volumes and dynamic range, but it's hard to move on from the "good enough" legacy of sRGB.
Certainly, eyes don't have a consistent gamma, they don't even match between people, much less outside the foveal field.
LUTs don’t magically add color volume, change the possible colors or dynamic range, or add much at all to the physics of a display. They’re usually used to reduce bit depth. They do not add more low or high colors than the screen physics started with.
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