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Working From Home - Impacts of Coronavirus
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rodpp:

--- Quote from: EEVblog on May 08, 2020, 10:59:51 am ---
--- Quote from: nctnico on May 08, 2020, 08:47:39 am ---IMHO it is unlikely we'll see total lockdowns agains. Countries like the Netherlands and Sweden have shown that keeping people locked inside isn't necessary to prevent an exponential spread of Covid-19.
--- End quote ---

And again, there never was a total lock down anywhere, as typically circa 40% of people were still out of their home doing essential work.
So yeah, not surprising that you don't necessarily need to lock people in their homes.
I think just general awareness and good hygiene is likely enough to curtail true exponential spread in the general population.

--- End quote ---

I disagree, please see below.


--- Quote from: EEVblog on May 08, 2020, 11:07:11 am ---
--- Quote from: rodpp on May 08, 2020, 10:54:39 am ---Australia did very well, according with the available data, and deserves slowly going back to the normal. Looking at new cases per day, it started increasing, reaching a local maximum, and decreased to very low numbers. Now it will start to relaxing and at one point the cases will start to increase again, and more restrictive measures will be necessary.
--- End quote ---

It's going to be hard to justify another shutdown unless daily cases increase by an order of magnitude here. We are currently oscillating around 20 cases a day, usually as the result of a few particular specific locations like a famous nursing home here where 16% of our deaths nation wide have come from.
It's fascinating the study the data on this stuff, it's rather addictive.

--- End quote ---

It's a great achievement, excellent number. While that number remains stable, you are good.


--- Quote from: dunkemhigh on May 08, 2020, 11:08:55 am ---Here in the UK we didn't do a lockdown but were asked to be sensible in doing social distancing. The result? We have the highest numbers of deaths in Europe and had to have an enforced lockdown. The simple fact is that people en mass are dicks and will do whatever the hell they want if not forced to do something else. Just look at how quickly the rule of law breaks down when there's a disaster - Katrina, for instance. So whilst lockdowns to combat the virus may not be necessary and we could do it gently and sensibly in theory, they are essential just to get down to even those 40% you mention.


--- End quote ---

Exactly! Here in Brazil we started well with everyone in home, but we relaxed the social isolating early. Then, even with much better general awareness and good hygiene, see what happened compared with Australia. Please pay attention that Brazil and Australia have much in common, like south hemisphere, weather, dimensions, etc.

nctnico:

--- Quote from: EEVblog on May 08, 2020, 10:59:51 am ---
--- Quote from: nctnico on May 08, 2020, 08:47:39 am ---IMHO it is unlikely we'll see total lockdowns agains. Countries like the Netherlands and Sweden have shown that keeping people locked inside isn't necessary to prevent an exponential spread of Covid-19.
--- End quote ---

And again, there never was a total lock down anywhere, as typically circa 40% of people were still out of their home doing essential work.
So yeah, not surprising that you don't necessarily need to lock people in their homes.

--- End quote ---
In Belgium, Italy and the UK they have/had pretty strict lock downs where people wheren't allowed outside without a good reason (buying food or going to work). Also the people who are going to the shops or work have to keep a distance. A Belgian friend of mine wasn't even allowed to visit his next door neighbour. That sounds like a total lock down to me but this is getting into semantics.


--- Quote ---I think just general awareness and good hygiene is likely enough to curtail true exponential spread in the general population.

--- End quote ---
I know you strongly wish this to be true (I wish it was true too; nobody is having a good time right now) but realistically it isn't. Transmission through air is also an important way to spread the virus and that isn't stopped by washing your hands, disinfecting door knobs or wearing face masks. My estimate is that until there is a vaccine and / or herd immunity at least social distancing is necessary to slow the spread of Covid19 down to a rate where health care can keep up. Only time will tell what else is necessary but it is going to be more than washing your hands for sure. If extra hygiene was enough then the outbreak would not have spiraled out of control the way it has. As I stated before: at some point extra hygiene doesn't add anything to preventing the spread of 'flu' virusses (Corona, Influeze, Rhino). These are so contagious that only full isolation helps. But that has other problems long term; look at how severely isolated tribes can be affected by the flu because they have no immunity at all.
Zero999:

--- Quote from: EEVblog on May 07, 2020, 11:32:01 pm ---
--- Quote from: james_s on May 07, 2020, 08:30:56 pm ---That's the inherent problem with restrictions. When they work, it creates the impression that they were not needed. People don't think about the fact that it's because of the restrictions that there is not a high infection rate.
--- End quote ---

Sure, but how much? How much is due to the lockdown, and how much was simple hygiene, awareness, and staying home when you are sick?
It would be be incredibly foolish (indeed, demonstrably wrong) to say there is no contribution from the later things.
It's easy and logical to assume that the lock down is the thing that did all the wonders, but where is the direct A/B comparison data to actually prove it? (and no, don't compare different countries)

--- End quote ---
No one knows. It might also be due to less pollution, making people less susceptible to the disease.

Yes public awareness will help to prevent a second wave, even when governments ease restrictions, but my fear is people will become complacent. I don't know about Australia, but I think it will be awhile before we can safely reopen more risky areas of the economy such as hairdressers, nightclubs, pubs and restaurants.


--- Quote from: EEVblog on May 08, 2020, 10:59:51 am ---
--- Quote from: nctnico on May 08, 2020, 08:47:39 am ---IMHO it is unlikely we'll see total lockdowns agains. Countries like the Netherlands and Sweden have shown that keeping people locked inside isn't necessary to prevent an exponential spread of Covid-19.
--- End quote ---

And again, there never was a total lock down anywhere, as typically circa 40% of people were still out of their home doing essential work.
So yeah, not surprising that you don't necessarily need to lock people in their homes.
I think just general awareness and good hygiene is likely enough to curtail true exponential spread in the general population.

--- End quote ---
True, there has never been a lockdown in most countries. Only regions in certain countries with very high death-tolls, such as Wuhan and a place in Italy I can't remember. People were literally sealed in their houses and food was delivered to their doors. Here in the UK only the relatively high risk businesses had to close. Areas such as construction and manufacturing were allowed to continue, even if they weren't essential, although many companies chose to close anyway. Recently many businesses which were never compelled to close have reopened and I think we should wait to see what will happen, before any further easing of restrictions.


--- Quote --- I don't think the governments will get the same leeway they did this time when they have to lock down again (and you can bet it's going to happen again, because it's the "new normal"), and governments get drunk on power like that.
--- End quote ---
I doubt most governments will enforce unnecessary lockdowns, as they tend to cut tax revenues which cost them a lot of money.


--- Quote from: rodpp on May 08, 2020, 02:18:14 pm ---Exactly! Here in Brazil we started well with everyone in home, but we relaxed the social isolating early. Then, even with much better general awareness and good hygiene, see what happened compared with Australia. Please pay attention that Brazil and Australia have much in common, like south hemisphere, weather, dimensions, etc.

--- End quote ---
I wouldn't trust those graphs much, as they're subject to levels of testing.
rodpp:

--- Quote from: Zero999 on May 08, 2020, 04:36:25 pm ---
--- Quote from: rodpp on May 08, 2020, 02:18:14 pm ---Exactly! Here in Brazil we started well with everyone in home, but we relaxed the social isolating early. Then, even with much better general awareness and good hygiene, see what happened compared with Australia. Please pay attention that Brazil and Australia have much in common, like south hemisphere, weather, dimensions, etc.

--- End quote ---
I wouldn't trust those graphs much, as they're subject to levels of testing.

--- End quote ---
Me too, you're correct. But it's the only data we have. Other than that, we will be only guessing.

Even with poor data, is better to be data driven than be based only in personal opinions.
Syntax Error:

--- Quote from: cdev on May 08, 2020, 02:15:45 pm ---https://www.graphene-info.com/graphene-frontiers-gfet-chemical-sensor-explained

...ETC...
Instant testing would allow them to focus more on the aspects of the COVID-19 situation that could make it less of a problem now. (like better, inexpensive diagnosis and treatments, in this case, instant testing that could get people into treatment earlier.)

--- End quote ---
I checked out Graphene Frontiers and the company seems quiescent. Not much info or activity after 2016. But then they are a tiny research startup.

gFET family detectors could make diagnosis of Covid19  rapid (within 90 minutes?) and in an operator friendly package :) The consumable parts of a testing rig would be cheap, say $1 each. Maybe a test subject just licks a plastic tab containing the chip?

Could rapid diagnosis be the breakthrough 'killer application' that graphene has long been searching for?

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