| Can someone exaplain the new covid brain damage study? Posted: 10 Mar 2022 05:51 PM PST https://www.nature.com/articles/s41586-022-04569-5 I'm not scientifically literate enough to full understand this study. Can someone please tell me, What was the average amount of brain loss?
Is this a big deal or relatively minor?
Will these effects be permanent or does the brain normally heal? Can you assume this data would be similar in young people or would I have to wait for another study? submitted by /u/Striking-Hall1705 [link] [comments] |
| what is a coefficient? like the convection heat-transfer coefficient and the drag coefficient Posted: 11 Mar 2022 07:42 AM PST |
| If we have a map of every neuron in c. elegans, can we model c. elegans perfectly "in silico"? If not, why not? Posted: 11 Mar 2022 02:03 PM PST I'm referring to this paper in Nature. EDIT for clarification: I understand that we can't model anything "perfectly". I suppose a refinement of my question would be, if we know the state of all the neurons (to the best of our current ability to pin down that state) of a live c. elegans at time t=0, how accurately can we model how the system of the worm will evolve up to, I dunno, a second later? Ten seconds? 0.1 seconds? And if the answer is, "we don't even know what will happen 0.0001 seconds later", why is that? And, yes, I also know the answer will be some sort of "it is a high dimensional and immensely sensitive dynamical system and god made PDEs hell to solve" (or whatever the proper formalism is), but I'm curious about what the specific technical obstacles are submitted by /u/__ByzantineFailure__ [link] [comments] |
| Do songbirds birds pre-plan nest locations, or is it an "on the fly" decision made when they get broody? Posted: 10 Mar 2022 07:50 AM PST I have several bluebird nest boxes, one of which was heavily used last year (3 successful broods). They have been around this year and checking out my other boxes, but seem to spend time evaluating boxes not really profiled for bluebirds (interior dimension, location, entrance size). So do birds actually "plan ahead" weeks in advance which location they plan to use for a nest, or do they do a sort of psuedo-random rotation of possible sites, and the one they happen to be investigating the day they decide to start building is the one that gets used? Bad analogy, but like walking back and forth between two bathrooms you aren't sure which you want to use, until you absolutely need to pee. submitted by /u/ferrofibrous [link] [comments] |
| How does a phone call on loudspeaker not result in a feedback loop? Posted: 09 Mar 2022 06:20 PM PST |
| How do the companies on earth farm/get neon gas? Posted: 10 Mar 2022 07:00 PM PST I have tried to research it but all I found conflicting answers so I was wondering if anyone has a concise explanation of the process of gathering it? submitted by /u/UncleNe0 [link] [comments] |
| Does water become marginally more viscous as it approaches freezing? Posted: 10 Mar 2022 01:14 PM PST |
| What happens to previous variants of COVID? Posted: 10 Mar 2022 10:38 PM PST Are the original variant or Delta still around while we're dealing with Omicron? If they get replaced, what is the mechanism for that? (Like, I assume the virus variants can't "eat" all the older variants, but in that case, how do we know that all of the previous variants are actually gone and replaced?) submitted by /u/valryuu [link] [comments] |
| How does the start of Proton-Proton chain in fusion work? Posted: 10 Mar 2022 06:50 AM PST Maybe I've been misinformed in some places, but some articles I've read that in the start of P-P fusion, one of the protium atoms β+ decays into a neutron to then form deuterium after fusion. Other places, I read that the same thing happens except the positron emission occurs after the two protium atoms form a diproton. Which is correct? Also, is the decay of one of the protons only possible under the immense amount of pressure stars provide or is β+ decay in P-P fusion the "natural" occurrence? submitted by /u/jamx02 [link] [comments] |
| Why is diffuse reflection a hazard of working with lasers? Posted: 10 Mar 2022 06:53 AM PST Moreover, how can surfaces that appear shiny be diffuse reflectors of UV wavelengths? Also, how can surfaces that appear dull be specular reflectors of IR wavelengths? What is about those wavelengths that allow them to act differently on those types of materials? submitted by /u/calmnchaos [link] [comments] |
| Is there intermediate memory storage in the brain? Posted: 10 Mar 2022 07:08 PM PST So I've heard that when you walk into a room and forgot why you walked in there it's because what you were planning to do has left your short term memory. And then later when you remember why you went in the room, it's that task going into your long term memory. Where was that memory being stored for those 5 minutes when it wasn't in your short term or long term memory? submitted by /u/Suspicious_Role5912 [link] [comments] |
| Is cyanuric acid organically present in the body? Posted: 10 Mar 2022 06:22 PM PST Reading about the Chinese Milk Scandal and the whole problem about the melamine content in the first place is that after reacting with cyanuric acid it can crystalize and form kidney stones, but in the sources I'm looking through I can't find anything saying the products also contained cyanuric acid. Was the cyanuric acid already in the body? Does melamine go on to produce cyanuric acid? submitted by /u/The_Teriyaki_Empire [link] [comments] |
| Scheduled C-section - how does the body know its no longer pregnant? Posted: 10 Mar 2022 10:05 AM PST Pretty straightforward question - how does the body know it's not pregnant after a scheduled C-section? I'm guessing when it goes through labor for a vaginal delivery the body is preparing to not be pregnant any longer, but how does it know when there is no labor involved? After the C-section is it just like "oh, no baby here, guess we're done."? Thanks! submitted by /u/waygooksaram [link] [comments] |
| What are the difference between intramuscular aqueous suspension and oil injection? Posted: 10 Mar 2022 03:38 PM PST My doctor recently changed my medicine into aqueous suspension. Still the same strength, the same site, same interval. When I asked why, he just said that they have supply problem and going to put me in this one until everything is back to normal. Just wanted to learn more about it, kinda hard to find on the internet. Mainly because I don't know what keyword to use or where to look. So, here I am. submitted by /u/PolyethyleneLezBean [link] [comments] |
| Did dinosaurs have respiratory turbinates? Posted: 10 Mar 2022 02:53 PM PST How would this effect the ectotherm vs. endotherm debate? Also, at what point in their evolution did birds develop respiratory turbinates (assuming non-avian dinosaurs didn't have them)? submitted by /u/unironically_me [link] [comments] |
| How do dung beetles and other feces-consuming animals not get sick from all the bacteria and viruses? Posted: 10 Mar 2022 09:55 AM PST Surely there's such a large amount of bacteria in feces that the immune system alone cannot handle it? If it can, how is that even possible? submitted by /u/BNKookie [link] [comments] |
| Is Phenol in the list of the aromatics that are the exception in the Chemical Oxygen Demand? Posted: 10 Mar 2022 05:57 AM PST |
| How do doctors determine how much time some patients have left (or is it just in movies) ? Posted: 10 Mar 2022 04:27 AM PST |
| If a patrticle is executing uniform circular motion under gravitational fprce, then why does it not fall to the center? Posted: 10 Mar 2022 07:44 AM PST So if a particle is executing uniform circular motion, then it will accelerate and acceleration means that it will radiate energy and then come closer to the center and finally fall into it or become a part of it. Why does this not happen? submitted by /u/psycopath3551 [link] [comments] |
| How do we know that there are more galaxies? Posted: 10 Mar 2022 11:45 PM PST Space is endless. Just the milkyway is HUGE! How can we see more galaxies? Like how does the telescope work that you can see beyond logic? How do we know that there are more galaxies? submitted by /u/Sadwithacake [link] [comments] |
| Why do we catabolise haemoglobin and excrete (most of) the products? Posted: 10 Mar 2022 11:08 AM PST Is there a benefit to doing this over recycling it? Or is it a case of evolution going with what's "good enough" and "not worth the effort (energy) improving on"? It just seems a bit silly to me to go to the effort of breaking down the haemoglobin to recycle the iron while throwing away the rest which could also be re-used too. It's not like you just stop needing haemoglobin at some point (I mean, before death) submitted by /u/Quinlov [link] [comments] |
| What happens when a star with mass just below that which makes it a black hole moves at relativistic speeds? Posted: 10 Mar 2022 06:54 AM PST When something moves at high speeds tending towards c it's relative mass increases. Furthermore, if a massive star just under the threshold mass (where it would collapse into a black hole) were accelerated to relativistic speeds, would it's increase in mass cause it to collapse into a black hole relativistically? What would that look like for an observer? Would it look like a star for an observer? I've only just started learning spec rel so if I've made any mistakes in my postulation forgive me :) submitted by /u/BestCosmo [link] [comments] |
