Question - Is there a study comparing the Gamma and the Delta variant?

Saturday, July 31, 2021

Question - Is there a study comparing the Gamma and the Delta variant?

Question - Is there a study comparing the Gamma and the Delta variant?
What are the mathematical and universal implications behind the “unsolvable” Collatz Conjecture?
Are there vaccines that gives sterilizing immunity?
Why & How Do Clay Minerals Swell When Wet?
How do scientists date items that are hundreds of thousands of years old with little to no carbon content?
Can particles decay by weak self-interaction?
How can a mushroom die?

Posted: 30 Jul 2021 02:11 PM PDT

So, I live in Brazil, and back in January we had what some people call "COVID-19 hell". It was the P1 (Gamma variant) rampaging the country. I think we were the most heavily hit country in the world.

Then, today, I read about some documents that puts the delta = R0 5-8, which seems a lot. From what I understand, it's a lot more transmissible than the Alpha, the UK one.

My question is, unlike most countries, we had a lot of trouble with a variant that is worse than the B.117 already. Are we less likely to have a giant surge, like some countries are having, because of the P1?

I searched everywhere and didn't find any comparison between the Gamma and the Delta R0 numbers.

Thank you very much

submitted by /u/JackyeLondon
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What are the mathematical and universal implications behind the “unsolvable” Collatz Conjecture?

Posted: 30 Jul 2021 09:18 AM PDT

The Collatz Conjecture;

https://en.m.wikipedia.org/wiki/Collatz_conjecture

Choose any number. If it's even, divide it by two. If it's odd, multiply it by three, then add one. Follow this pattern as long as possible.

Essentially, as far as we can tell, any number that follows this basic formula will eventually end up at one, which makes four, then two, then one again. In an endless loop. And we can't prove why.

My question is less about what the answer is, and more about what the implications of a strangely "unsolvable" could be in terms of our physical universe? Because as we know, mathematics correlates with our physical reality.

submitted by /u/BSIBooker
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Are there vaccines that gives sterilizing immunity?

Posted: 31 Jul 2021 02:15 AM PDT

Are they the majority of vaccines? The minority?

submitted by /u/wanttosellstufffs
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Why & How Do Clay Minerals Swell When Wet?

Posted: 30 Jul 2021 10:53 AM PDT

What is unique about clay minerals that causes them to swell or expand when saturated with water? Is the process primarily mechanical or chemical in nature?

submitted by /u/37litebluesheep
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How do scientists date items that are hundreds of thousands of years old with little to no carbon content?

Posted: 30 Jul 2021 04:33 AM PDT

As the title says I Was reading this article and wonder how you date rocks? I'm familiar with how carbon dating works but, how do they do it when the item has no carbon content?

Article in Question

submitted by /u/M3ttl3r
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Can particles decay by weak self-interaction?

Posted: 30 Jul 2021 01:27 AM PDT

It seems like a simple question, at least if you are familiar with the topic, but I just can't find a concrete answer anywhere.

So, could a D+ (c & anti-d), or any other suitable particle really, decay into an ~~anti-Kaon (s & anti-d)~~ positive pion (u & anti-d) simply by a weak self-interaction of the c-quark? What I imagine is c "temporarily" transitioning into a d/s-quark and then finishing the self-interaction by turning into an s-quark. Does this violate some kind of conservation law or is this a reasonable decay mode?

submitted by /u/SkipX
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How can a mushroom die?

Posted: 29 Jul 2021 02:23 PM PDT

The mycelium can measure several kilometers, I don't see how it can be completely destroy

submitted by /u/Vantaie
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