Recent comments in /f/science
EshayAdlay420 t1_jazhe6i wrote
Reply to comment by Xbalanque_ in Cosmic rays reveal measurements of a concealed corridor in the Great Pyramid of Giza by marketrent
He just wants to keep the apple of eden to himself
silverheart333 t1_jazh2rd wrote
Reply to Regional brain glucose metabolism is differentially affected by ketogenic diet: a human semiquantitative positron emission tomography (Mar 2023) by basmwklz
Since the Keto Diet prevents seizures, they are researching why. This test seems to show It displaces brain glucose processing.
It does this by improving memory processing and shunting some portion of spatial reasoning to the emotional processing centers. They couldn't see this changed any behaviors.
seven_seven t1_jazggf6 wrote
Double_Distribution8 t1_jazg0tu wrote
Reply to comment by noxii3101 in Cosmic rays reveal measurements of a concealed corridor in the Great Pyramid of Giza by marketrent
This isn't a massive void, and this isn't about saving weight and building materials...In fact it makes things more complex, and requires giant chevron stones. And also since this feature is at the edge of the outer shell of the pyramid, there isn't much weight above this structure anyway. And the descending corridor below already has effective lintel stones protecting it anyway. So there isn't much weight above, and it doesn't seem to be designed to protect anything below as far as weight goes.
As far as repeated structures go, I personally agree that the corbelled grand gallery does play a role in moving/lifting the giant granite blocks for the "King's Chamber", but that section is higher up than this newly imaged "front door passage". And there are no giant granite stones involved with this level anyway (that we know of).
TruekaerF t1_jazfycy wrote
Reply to Regional brain glucose metabolism is differentially affected by ketogenic diet: a human semiquantitative positron emission tomography (Mar 2023) by basmwklz
I wish every post to this sub had a ELI5 included.
Karuna56 t1_jazfq27 wrote
Reply to comment by 101forgotmypassword in Regional brain glucose metabolism is differentially affected by ketogenic diet: a human semiquantitative positron emission tomography (Mar 2023) by basmwklz
Me too. My smoothbrain hurts.
Tidesticky t1_jazfgcc wrote
Reply to On Facebook, Visual Misinfo Widespread. In the runup to the 2020 U.S. Presidential election visual misinformation was widespread across the platform, and that it was highly asymmetric across party lines, with right-leaning images five to eight times more likely to be misleading. by Wagamaga
I think it's safe to say the same about non-visual information.
SuddenlyElga t1_jazelhl wrote
Reply to Regional brain glucose metabolism is differentially affected by ketogenic diet: a human semiquantitative positron emission tomography (Mar 2023) by basmwklz
The conclusion sounds like it might be good for parts of the brain. But I can’t figure out if the hyper metabolism part is a negative or not.
TheWoodConsultant t1_jazehr4 wrote
Reply to comment by mindfu in On Facebook, Visual Misinfo Widespread. In the runup to the 2020 U.S. Presidential election visual misinformation was widespread across the platform, and that it was highly asymmetric across party lines, with right-leaning images five to eight times more likely to be misleading. by Wagamaga
Not sure how you can disagree, the terms themselves have to be subjective since they are, by definition, relative. Things that your average boomer would consider left would likely be considered right by your average gen Z. Same with a European vs. an American.
With regards to post Covid data, it will be a while before we get reliable information since in Left leaning circles people aren’t allowed to express reservations about vaccine openly like in right leaning circles and masks.
I not saying there isn’t more conservative centric info on Fb, it’s mostly a boomer platform after all, I just have concerns with their methodology given I did this work professionally and given what was presented in the article I think what they have done has the potential to be flawed.
I know there is also a tendency to put all Covid misinformed into the right/Republican bucket whatever the source. In 2020 a lot of the Covid misinformation was coming from sources that we suspected were PRC and then they spread across all political spectrums. It wasn’t until post 2020 election that it really polarized that questioning the status quo on Covid was considered right wing. Remember the democratic presidential debates when the candidates called the safety of the Covid vaccine into question?
Then in 2021 I remember neighbors in SF acting like I was crazy for discussing the danish, German, and Israel data that suggested 6-8 week between vaccine doses was safer for young men.
[deleted] t1_jazdz85 wrote
Reply to comment by [deleted] in Cosmic rays reveal measurements of a concealed corridor in the Great Pyramid of Giza by marketrent
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StrangeMixtures t1_jazdkta wrote
Reply to Cosmic rays reveal measurements of a concealed corridor in the Great Pyramid of Giza by marketrent
Great news everyone!! Now we can finally get our hands on the Necronomicon!!
[deleted] t1_jazddec wrote
Reply to comment by NoNumbersAtTheEnding in Anxiety can be created by the body, mouse heart study suggests by halebounddr
Very very low dose. Sorry. Like .125 twice a day.
Sorry not a doctor, not medical advice just personal experience but I would say don’t use propranolol for anxiety
101forgotmypassword t1_jazczcf wrote
Reply to Regional brain glucose metabolism is differentially affected by ketogenic diet: a human semiquantitative positron emission tomography (Mar 2023) by basmwklz
Someone give me the buzz word explanation. Does keto diet increas brains or does it reduce some obscure medical condition?
SilverBabyComeToMe t1_jazcw4r wrote
Reply to Regional brain glucose metabolism is differentially affected by ketogenic diet: a human semiquantitative positron emission tomography (Mar 2023) by basmwklz
What does this mean in practical terms?
unselfishdata t1_jazcuaa wrote
Reply to On Facebook, Visual Misinfo Widespread. In the runup to the 2020 U.S. Presidential election visual misinformation was widespread across the platform, and that it was highly asymmetric across party lines, with right-leaning images five to eight times more likely to be misleading. by Wagamaga
That all depends which metric you use to determine "misinformation". Example, as a constitutionalist, I've said it's unlawful to force the population into vaccines, which at the time was "misinformation"...but several lawsuits later and what appears to be many more to come, it turns out I was right. Fyi: I don't really care about being right, I care about our freedom and I love my fellow man. And since Ive studied the constitution quite a bit more than the average Joe, I can confidently make such claims ahead of SCOTUS, and feel that I'm obliged to let others know.
basmwklz OP t1_jazclf2 wrote
Reply to Regional brain glucose metabolism is differentially affected by ketogenic diet: a human semiquantitative positron emission tomography (Mar 2023) by basmwklz
Abstract:
Purpose
Ketogenic diet (KD) is recommended to avoid intense [18F]FDG myocardial physiologic uptake in PET imaging. Neuroprotective and anti-seizure effects of KD have been suggested, but their mechanisms remain to be elucidated. This [18F]FDG PET study aims to evaluate the effect of KD on glucose brain metabolism.
Method
Subjects who underwent KD prior to whole-body and brain [18F]FDG PET between January 2019 and December 2020 in our department for suspected endocarditis were retrospectively included. Myocardial glucose suppression (MGS) on whole-body PET was analyzed. Patients with brain abnormalities were excluded. Thirty-four subjects with MGS (mean age: 61.8 ± 17.2 years) were included in the KD population, and 14 subjects without MGS were considered for a partial KD group (mean age: 62.3 ± 15.1 years). Brain SUVmax was first compared between these two KD groups to determine possible global uptake difference. Semiquantitative voxel-based intergroup analyses were secondarily performed to determine possible inter-regional differences by comparing KD groups with and without MGS, separately, to 27 healthy subjects fasting for at least 6 h (mean age of 62.4 ± 10.9 years), and KD groups between them (p-voxel < 0.001, and p-cluster < 0.05, FWE-corrected).
Results
A 20% lower brain SUVmax was found in subjects under KD with MGS in comparison to those without MGS (Student’s t-test, p = 0.02). Whole-brain voxel-based intergroup analysis revealed that patients under KD with and without MGS had relative hypermetabolism of limbic regions including medial temporal cortices and cerebellum lobes and relative hypometabolism of bilateral posterior regions (occipital), without significant difference between them.
Conclusion
KD globally reduces brain glucose metabolism but with regional differences, requiring special attention to clinical interpretation. On a pathophysiological perspective, these findings could help understand underlying neurological effects of KD through possible decrease of oxidative stress in posterior regions and functional compensation in the limbic regions.
newroll121aa t1_jazckix wrote
Reply to comment by SneeringAnswer in On Facebook, Visual Misinfo Widespread. In the runup to the 2020 U.S. Presidential election visual misinformation was widespread across the platform, and that it was highly asymmetric across party lines, with right-leaning images five to eight times more likely to be misleading. by Wagamaga
And the most f***** up thing about it is that many people would actually believe it.
Of course that is not the how things work but people will believe everything that they see on the internet.
mindfu t1_jazcf6d wrote
Reply to comment by TheWoodConsultant in On Facebook, Visual Misinfo Widespread. In the runup to the 2020 U.S. Presidential election visual misinformation was widespread across the platform, and that it was highly asymmetric across party lines, with right-leaning images five to eight times more likely to be misleading. by Wagamaga
I didn't miss your point about left and right being an arbitrary distinction, I disagree with it. :-)
For beliefs before COVID, of course that's before COVID misinformation started. Once it started, it's pretty clear which political side was having more misinformation pushed on Facebook.
So I guess I think the methodology is clear enough. Nothing in politics or human psychology can be configured to the last decimal, but it's pretty clear at this point what the policies and opinions of the American right tend to be. And how they tend to be different from the American left.
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Reply to Regional brain glucose metabolism is differentially affected by ketogenic diet: a human semiquantitative positron emission tomography (Mar 2023) by basmwklz
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[deleted] t1_jazc0vs wrote
Reply to comment by [deleted] in On Facebook, Visual Misinfo Widespread. In the runup to the 2020 U.S. Presidential election visual misinformation was widespread across the platform, and that it was highly asymmetric across party lines, with right-leaning images five to eight times more likely to be misleading. by Wagamaga
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[deleted] t1_jazbi7c wrote
Larry_Linguini t1_jaz8zb8 wrote
Reply to comment by krucen in On Facebook, Visual Misinfo Widespread. In the runup to the 2020 U.S. Presidential election visual misinformation was widespread across the platform, and that it was highly asymmetric across party lines, with right-leaning images five to eight times more likely to be misleading. by Wagamaga
Alright, you may be on to something here.
TheWoodConsultant t1_jaz8go6 wrote
Reply to comment by mindfu in On Facebook, Visual Misinfo Widespread. In the runup to the 2020 U.S. Presidential election visual misinformation was widespread across the platform, and that it was highly asymmetric across party lines, with right-leaning images five to eight times more likely to be misleading. by Wagamaga
I thank you missed my point that left and right and subjective and arbitrary. That said; per the NIH, before Covid around 22% on both groups believed “Vaccinations can have serious side effects that cause more harm than some of the diseases that they are supposed to prevent.”
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4938547/
I’m also not presenting some sort of politically charged analysis, only saying that they need to present more detail about their methodology since they are using highly subjective topics that I have have experience with.
JPBEH33R t1_jaz8cfz wrote
Reply to comment by Duende555 in On Facebook, Visual Misinfo Widespread. In the runup to the 2020 U.S. Presidential election visual misinformation was widespread across the platform, and that it was highly asymmetric across party lines, with right-leaning images five to eight times more likely to be misleading. by Wagamaga
And with the advent of apps like Tik Tok the attention is man of people is going to sink even more now.
People really find hard to read any kind of newspapers for anything these days.
HylicSlaughterer t1_jazhiz2 wrote
Reply to On Facebook, Visual Misinfo Widespread. In the runup to the 2020 U.S. Presidential election visual misinformation was widespread across the platform, and that it was highly asymmetric across party lines, with right-leaning images five to eight times more likely to be misleading. by Wagamaga
Luckily the left fortified the election so that they won anyway