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Sunday, April 24, 2022

Does the brain undergo physiological changes while depressed? If so what kind of changes specifically?

Does the brain undergo physiological changes while depressed? If so what kind of changes specifically?


Does the brain undergo physiological changes while depressed? If so what kind of changes specifically?

Posted: 24 Apr 2022 06:53 AM PDT

With respect to Gödel's first incompleteness theorem: given a consistent formal system, what are the cardinalities of the set of true-and-provable theorems and the set of true-but-unprovable theorems?

Posted: 24 Apr 2022 07:05 AM PDT

I have an undergraduate degree in math but I'm more of an enthusiast. I've always been interested in Gödel's incompleteness theorems since I read the popular science book Incompleteness by Rebecca Goldstein in college and I thought about this question the other day.

Ultimately, I'm wondering if, given a consistent formal system, are almost all true statements unprovable? How would one even measure the cardinality of the set of true-but-unprovable theorems? Is this even a sensible question to pose?

My knowledge of this particular area is limited so explainations-like-I'm-an-undergrad would be most appreciated!

submitted by /u/ulallume
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Does incest carry forward from PAST generations?

Posted: 24 Apr 2022 10:55 AM PDT

Let's say one person (or animal; I've been reading about the Isle Royale wolves) is the product of incest. That person goes on to reproduce with an unrelated individual. Would the offspring's DNA reflect the incest in their grandparents' generation or would they be indistinguishable from someone whose grandparents are unrelated?

submitted by /u/letheix
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What is the current accepted wisdom regarding how the common cold and other coronavirus family members affect the gut biome over the long term after recovery?

Posted: 24 Apr 2022 02:50 PM PDT

Specifically, does catching a cold, COVID, parainfluenza etc cause any permanent changes that have knock on effects on digestive efficiency/health or body weight?

submitted by /u/fascinatedobserver
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What's the difference between reporting limit, detection limit and quantitation limit in groundwater monitoring?

Posted: 23 Apr 2022 11:56 AM PDT

What's the difference between reporting limit, detection limit and quantitation limit in groundwater monitoring? I would really appreciate an explanation of the relationship between these concepts, as they relate to the measurement of analytes in groundwater or other sources.

For context, I'm working in the field, in IT, as an outsider without a background in chemistry or environmental monitoring, and it almost looks to me that these terms are used inconsistently. An explanation, or even a link to an article for someone without a chemistry background, would be helpful.

Thank you!

submitted by /u/throw63679
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