General > General Technical Chat
Bluetooth Low Energy is unsuitable for COVID-19 contact tracing, say inventors
Mr. Scram:
--- Quote from: David Hess on May 11, 2020, 06:54:38 pm ---... no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularity describing the place to be searched, and the persons or things ...
So what crime did everybody commit for which probable cause exists?
https://en.wikipedia.org/wiki/Warrant_(law)#History
We won that war so we do not have to put up with General Warrants anymore.
--- End quote ---
Snowden's revelations ruined that dream a bit.
Syntax Error:
Here's a thought for Bluetooth contact tracing. If you can use the RSSI to calculate distance as per the equation*
Distance = 10 ^ (( MeasuredPower – RSSI)/(10 * N)) , it would be possible to penalise people for breaching social distancing rules as their recorded RSSI is too high. Or at least give them a proximity notificaction!
* Source: How to Calculate Distance from the RSSI value of the BLE Beacon
https://iotandelectronics.wordpress.com/2016/10/07/how-to-calculate-distance-from-the-rssi-value-of-the-ble-beacon/
cdev:
Could you explain a bit more?
This paper on RESV + MERS said that the dose was attainable and sustainable by multiple dosing.
(see attached picture here is the original paper
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5307780/ )
Resveratrol is proposed elsewhere as likely good for most people who are at high risk for COVID-19. Papers have been written just about that.
--- Quote from: Marco on May 11, 2020, 07:41:51 pm ---Impressive science project ... but I don't think you can't get that dose from an ingested medicine. Even with an inhaled one I'm kinda scared what that amount of it would do to everything else but the virus.
--- End quote ---
Also, weights of a substance that is inhaled are smaller not larger than can be ingested. Large amounts of resveratrol are toxic but that is a dose that nobody would take. According to this other study the amounts needed would be sustainably taken. With the caveat that I am not a doctor and have no idea if this would work, and although it is entirely reasonable to theorize that smaller doses might have the desired result of reducing the severity of infection so as to make it less dangerous, but perhaps not completely preventing it, its also a notoriously unpredictable situation that nobody has any right to or should try to second guess.
Something similar has been done with virulent pseudorabies virus and piglets.
See https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6164078/
Actually, a number of papers have replicated this kind of experiment in a number of different animals and viruses.
Note: I have NO idea if this would work against COVID-19.
I would assume it won't. Take precautions! I would rather make a fool of myself wearing masks and gloves and washing my hands six times a day than get a potentially fatal disease.
Also MERS is a different SARS-like betacoronavirus.
To my knowledge COVID-19 still has not been tested with resveratrol. I've run out of entities to call about this. If you live in other countries, you might consider asking them if they have tested it. just to jog their memories that they should.
Tell them we may be dropping the ball.
Point them at this:
Sirtuins Are Evolutionarily Conserved Viral Restriction Factors-
https://mbio.asm.org/content/mbio/5/6/e02249-14.full.pdf
Zero999:
I admit I’ve not read it yet but thought I’d chime in anyway. It doesn’t have to be perfect and no system can be, as someone might pick it up from an object. The app just has to ensure people who might have it get tested, without there being too many false positives to overwhelm the system. That’s all that’s needed to keep the R number below one, without isolating everyone.
Buriedcode:
Seems a bit click baity to me. The app doesn't claim to be super accurate, and if someone has their diagnosis confirmed it can at least show if they've been self isolating, or been in relative close proximity with lots of people. And of course, it can't know if someone has been in contact with someone without a phone.
It isn't meant to completely track everyone, the question is - is it better than nothing?
No-one is claiming an app can magically know everyone who will get it, but it should at least help modify peoples behavior by informing them if they've been near a confirmed case. They'll probably have to tweak it to reduce the false positives, and there will be plenty of false negatives but some feedback is better than none.
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