- It is reported that redheads, with their mutated MC1R gene, require about 20% more anesthesia than the average person. Are there other reported correlations between this gene and other effects (pain tolerance, drug tolerance, metabolism, etc...)?
- How does NASA and other space agencies protect their spacecraft from being hacked and taken over by signals broadcast from hostile third parties?
- What is the science behind CDC reducing quarantine to 5 days for covid?
- What symptoms of the virus are the virus and what are the symptoms of the body defending against the virus?
- How Credible is the theory of Flow?
- Does contracting and overcoming COVID at some point after full vaccination boost your COVID immunity in a comparable way to a booster shot?
- Are there proteins that do nothing? Neutral things that natural selection didn't "care about".
- What's the human body tolerance for sustained lateral acceleration?
- How sure are we that the "original" virus that causes Covid 19 identified in Wuhan was the "original" and not a mutation of an undetected coronavirus?
- How does the JWST slow down to stop in the L2?
- Is it true that sitting in front of a screen for too many hours each day is bad for your eyes?
- How long does it take for a virus to replicate?
- Do allergens become less potent over time?
- Do birth defects cause more preterm births, or do preterm births cause more defects? If the latter, does the rise in preterm births due to COVID mean higher risk for birth defects?
- What determines the temperature of space?
- Diet planning based on genetic tests or blood genotype tests. Science or scam?
- How do respiratory viruses spread in the body?
- Is it possible to create a resonant („LC“) circuit that creates visible light? (At a wavelength of ~500nm)
- Is grafting plants hybridization?
- Can crabs or other crustaceans catch prion diseases like Kurus or something similar? Whether yes or no, why?
- Why does a lower centre of mass correspond to higher stability ?
- Does taking two lateral flow tests at the same time have a multiplicative effect on the results' specificity and sensitivity?
- Why do some birds (owls, eagles) have feathers on their legs while others (seagulls, corvids) don't?
- What conditions produce a predominately deciduous versus coniferous forest?
| Posted: 28 Dec 2021 05:44 AM PST |
| Posted: 27 Dec 2021 06:18 AM PST |
| What is the science behind CDC reducing quarantine to 5 days for covid? Posted: 28 Dec 2021 07:27 AM PST The CDC recently reduced quarantine guidelines stating: "The change is motivated by science demonstrating that the majority of SARS-CoV-2 transmission occurs early in the course of illness, generally in the 1-2 days prior to onset of symptoms and the 2-3 days after. ". Sounds good but they don't provide references. What is the actual evidence? https://www.cdc.gov/media/releases/2021/s1227-isolation-quarantine-guidance.html [link] [comments] |
| Posted: 28 Dec 2021 12:06 AM PST |
| How Credible is the theory of Flow? Posted: 28 Dec 2021 07:47 AM PST asking about how flow is described in the book: flow psychology of optimal experience If so are there some scientifically proven methode to achieve flow no matter what [link] [comments] |
| Posted: 28 Dec 2021 11:09 AM PST |
| Are there proteins that do nothing? Neutral things that natural selection didn't "care about". Posted: 27 Dec 2021 09:45 PM PST Surely it must be the case, just like we have useless bones, right? Or would such proteins be necessarily bad for our body? [link] [comments] |
| What's the human body tolerance for sustained lateral acceleration? Posted: 28 Dec 2021 02:15 AM PST Hello reddit. I was wondering what the limit is for lateral acceleration for the human body. I'm interested in sustained acceleration, like from cornering at high speed, not in peak acceleration, like from a crash. I would also be interested in repeated short periods of acceleration, so, again, like a car driving around a circuit, but I understand this information might not be available. I've been looking around but there is much more research about vertical and longitudinal acceleration, which is understandable since that's more relevant for aircraft and spacecraft. So I'm having trouble finding what I want. Thanks in advance! [link] [comments] |
| Posted: 28 Dec 2021 10:22 AM PST Is it possible the "original" just went undetected and a more serious variant was the one identified at the start of the pandemic? [link] [comments] |
| How does the JWST slow down to stop in the L2? Posted: 27 Dec 2021 03:52 PM PST Title sorry that's all I got. Couldn't google anything that comprehended my understanding. Please link any articles if you have any. Would love to read up on this particular part of the JWST operation. Also sorry if I don't respond immediately. Just worked a 13 hour shift and got another 11 hour shift tmrw. Need some sleep... [link] [comments] |
| Is it true that sitting in front of a screen for too many hours each day is bad for your eyes? Posted: 27 Dec 2021 05:50 PM PST |
| How long does it take for a virus to replicate? Posted: 27 Dec 2021 08:37 PM PST Basically, once a virus enters a cell, how long does it take to do its dirty work and rupture the cell and releasing more copies? A few minutes? A couple days? Could it be broken down into essentially a chemical reaction? [link] [comments] |
| Do allergens become less potent over time? Posted: 27 Dec 2021 09:46 PM PST For example, say I'm allergic to dogs, and I visit a friend's house that has dogs and some dog hair gets onto my scarf. I wear the scarf the following week and sneeze a bit more due to the dog hair on the scarf. Then winter is over and I put the scarf uncleaned away until next winter, will I have as much of a reaction from the allergens on the scarf than I did the past winter? Comparing apples to apples and just the allergens on the scarf. Do they lose potency over time as in do the allergens break down or are they just as potent? Corollary? Should I be dry cleaning my scarves every winter? [link] [comments] |
| Posted: 27 Dec 2021 09:06 PM PST So after a bit of research I've found a few sources00019-3/fulltext) showing that women who had COVID during pregnancy have an increased risk of preterm birth than women who didn't have COVID. And in the conclusion of this study it says "Birth defects contribute to the occurrence of preterm birth", suggesting that it is the birth defect that increases the chances of preterm birth. They found that 3% of full term births had defects and 8% of preterm (2.65x risk). So the question is: do the babies born to a mother who was sick with COVID have a higher risk of birth defects, and that is causing the rise in preterm births? Or are they healthy babies that are just preterm? The easy way to find out would be to see if the rate of birth defects has changed in total or in preterm overall. It the rate of defects for preterm births has not changed (or gone up), that would mean COVID is increasing risk of defects. But if the rate is going down, then COVID is not causing defects and they are otherwise healthy babies. Unfortunately I have not been able to find any data or studies with this yet myself. [link] [comments] |
| What determines the temperature of space? Posted: 27 Dec 2021 11:23 AM PST I read that the temperature of space is -270C, although I can't fathom why an empty vacuum would have a temperature. It doesn't seem like there should be any source of heat or cold to influence this, so ideally, it should be 0. [link] [comments] |
| Diet planning based on genetic tests or blood genotype tests. Science or scam? Posted: 27 Dec 2021 02:59 PM PST I am wondering is there any sense in ordering genetic tests or blood genotype tests, made by more and more private, commercial genetic laboratories? Is that evidence-based medicine? For example, today i have seen advertisement: The test consists of analyzing 20 genes - metabolism and obesity, vitamin and antioxidant metabolism, and food intolerances. [link] [comments] |
| How do respiratory viruses spread in the body? Posted: 27 Dec 2021 05:49 PM PST I'm aware that viruses like an influenza or a common cold replicate in the respiratory tract, but my question is what is the mechanism for spreading? Is it confined to locally spreading from one adjacent cell to the next? (Is this how a viruses reaches the lungs for example) or can it get into the blood stream and get transported to other tissues? If for example influenza can't get into the bloodstream, how/does it(?) infect other organs or cause organ failure? I know that some viruses like HIV are found in the bloodstream, so what decides if the virus is able to get into the bloodstream or not? Thank you so much [link] [comments] |
| Posted: 27 Dec 2021 05:52 AM PST |
| Is grafting plants hybridization? Posted: 27 Dec 2021 09:03 PM PST Is it just hybridization of plants by attaching a branch to a stem? Can almost any plant do this? Further questions with an example: suppose I have a plant very known for taking in heavy metals and storing it, then I graft another plant to it where the leaves are known to grow in almost any weather. Would that work/exist? [link] [comments] |
| Posted: 27 Dec 2021 05:13 PM PST |
| Why does a lower centre of mass correspond to higher stability ? Posted: 27 Dec 2021 08:10 AM PST A lower centre of mass for an object (ie) when the centre of mass is near the base of the object ,it has higher stabilty ,now why is this the case? Is it because when the centre of mass is lower ,the potential energy is less ,so it's in a stable equilibrium ? [link] [comments] |
| Posted: 27 Dec 2021 01:02 PM PST I understand the lateral flow tests should, properly administered, detect COVID between 70 and 90 per cent of the time, perhaps slightly higher than that in the early days of syptoms. Let's assume 90 per cent is correct. Does taking two LFs at the same time, and getting 2 negatives, mean you are approx 1% (90% * 90%) likely to have COVID and 99% likely not to have it? If it doesnt work like that, why not? Would taking the second test the next day change the answer? Same questions but in reverse for sensitivity [link] [comments] |
| Why do some birds (owls, eagles) have feathers on their legs while others (seagulls, corvids) don't? Posted: 26 Dec 2021 08:15 AM PST Is it to do with flight? Warmth? Other? Does this factor into taxonomy? [link] [comments] |
| What conditions produce a predominately deciduous versus coniferous forest? Posted: 27 Dec 2021 09:11 AM PST Is it a matter of soil quality, water, sunlight, or some combination of all these factors? [link] [comments] |
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