- Question regarding using the blood plasma of recovered people to treat sick people: When the plasma is injected, is it just the antibodies in the donated plasma that attacks the virus, or does the body detect the antibodies and create more ?
- When a person severs a body part like a finger , or part of foot and doctors are able to stitch it back on do the severed nerve endings and blood vessels reconnect? Or do they form new nerve endings,and blood vessels?
- whats the difference between an allergy vaccine and a normal vaccine?how does it work?
- Why do people say that right after the big bang, the Universe was very small? Wasn't the universe just as infinite then as it is now? Isn't it more accurate to say it was very dense?
- What causes a paper helicopter to fall very slowly while spinning?
- How do caterpillars become butterflies?
- Can a MRI brain scan detect PTSD or any other psychiatric disorder ?
- When someone has a severe trauma injury and needs emergency surgery, how do doctors know what kind of anesthesia to use?
- What is the most contagious disease in history?
- Does surviving a SARS case before help your immune system fight COVID-19?
- What happens to the autonomous nervous system when we lose consciousness?
- Are photoelectrons always emitted at maximum kinetic energy? If no, why not?
- Do lab workers/scientists have the option to take home lab rats as pets instead of euthanize them?
- How does progesterone affect mucus thickness in the uterus when using a contraceptive?
- Is it possible to use some quality of the Covid-19 antibodies to track its progress through a population?
- Are the symptoms of Covid-19 entirely due to the body’s immune response? Would the virus harm us without that response?
- From what I gathered ace2 on cells is responsible for binding to Covid19 spike protein. Can we produce ace2 or part of it so it can't bind to real ace2?
- What's happening in this explosion?
- We're viruses a precursor to life?
- How many spike proteins exist on a single coronavirus? Does this number vary by species or individual virions?
- Are there any examples of "good" viruses that have become part of the human system?
| Posted: 04 Apr 2020 04:56 AM PDT |
| Posted: 03 Apr 2020 09:55 PM PDT |
| whats the difference between an allergy vaccine and a normal vaccine?how does it work? Posted: 04 Apr 2020 04:20 AM PDT i know that the allergy shots are also talked about as if they are vaccine but i don't understand why? [link] [comments]  |
| Posted: 04 Apr 2020 06:02 AM PDT How can the universe be described as small? If the Universe was infinite at the big bang, but everything was very close together, doesn't this just mean that it was very dense? I don't study physics but I have some understanding of a cosmology but this description has always bugged me and no one ever addresses it. [link] [comments]  |
| What causes a paper helicopter to fall very slowly while spinning? Posted: 04 Apr 2020 01:57 AM PDT My dad is a primary school teacher and one of his favorite experiment is to have the students make paper helicopters like this. It is a simple Y-shaped piece of paper with something heavy tied to the bottom (a paper clip, a staple...) that, when dropped, starts spinning and takes a long time to fall. Here is a slow-motion video we just filmed to demonstrate it to his students (**Epilepsy warning, the background blinks due to slow-mo). We were wondering, what exactly causes the paper helicopter to start spinning? And why does it take more time to fall than any other piece of paper? The paper sheet doesn't have a thinner attack edge or anything else like that. It's just a plain paper sheet with a paper clip. So why does it behave like an engineered aircraft? [link] [comments]  |
| How do caterpillars become butterflies? Posted: 03 Apr 2020 06:24 PM PDT I've always been taught the basics, caterpillars eat a lot, weave a cocoon, stay there for some time and come out with a new body and wings. But what exactly happens in the cocoon? What is the body breaking down into - amino acids/individual cells/ different tissues - and then rebuilding / reconnecting? And what guides the rebuilding? If they've broken down into primordial goop, is there's still a brain directing the reformation? [link] [comments]  |
| Can a MRI brain scan detect PTSD or any other psychiatric disorder ? Posted: 04 Apr 2020 02:56 AM PDT |
| Posted: 03 Apr 2020 06:03 PM PDT I know when you have a preplanned surgery there is a lot of consultation with the anesthesiologist to make sure that they give you the right amount of medicine and what ever else is needed. What happens when there is no preparation and emergency surgery is needed? [link] [comments]  |
| What is the most contagious disease in history? Posted: 03 Apr 2020 11:01 PM PDT |
| Does surviving a SARS case before help your immune system fight COVID-19? Posted: 03 Apr 2020 08:58 PM PDT |
| What happens to the autonomous nervous system when we lose consciousness? Posted: 04 Apr 2020 05:24 AM PDT I read that in the context of hemorrhagic shock, that the mean arterial pressure will drop much more radically when general anaesthetic is given than when it isn't. Firsly, is this a problem when it comes to the operating table or once you're in the hospital can they work around this problem using drugs such as adrenaline-like stuff? Secondly, does this apply to someone losing consciousness because of a car accident for example or is it because of the action of anaesthetics? Thank you very much! I don't know whether "human body" or "medicine" is the better flair... [link] [comments]  |
| Are photoelectrons always emitted at maximum kinetic energy? If no, why not? Posted: 04 Apr 2020 01:23 AM PDT Question about the photoelectric effect, using the formula KE(max) = hf - work function we can calculate the maximum kinetic energy of photoelectrons. Are photoelectrons always emitted at this maximum kinetic energy? If not what other factors are affecting them? Thanks! [link] [comments]  |
| Do lab workers/scientists have the option to take home lab rats as pets instead of euthanize them? Posted: 03 Apr 2020 02:35 PM PDT I guess this can apply to psychology as well. Obviously you wouldn't want to take home lab rats who've had regions of their brains ablaised or their neural circuits significantly impacted for purposes of the studies. But for studies that don't require you to modify their brains, why do they have to be euthanized afterwards, and do the scientists/lab workers have the option to take them home as pets after the study's conclusion? Are there safety and ethical concerns even with Wistars, Sprague-Dawleys, and Long-Evans? [link] [comments]  |
| How does progesterone affect mucus thickness in the uterus when using a contraceptive? Posted: 03 Apr 2020 09:55 PM PDT |
| Posted: 03 Apr 2020 10:53 PM PDT Just wondered if you could measure some aspect of the antibodies and find out when a person was infected. [link] [comments]  |
| Posted: 03 Apr 2020 10:39 PM PDT |
| Posted: 04 Apr 2020 01:30 AM PDT |
| What's happening in this explosion? Posted: 03 Apr 2020 12:06 PM PDT So in isolation, I started watching Mythbusters and noticed something odd. Of course, there are plenty of explosions in the show but this one has something the others generally don't. Some sort of afterimage or reflection at the point of detonation. This happened during April 22nd 2009 Episode, "Banana Slip. Double Dip" The Build Team were investigating homemade diamonds. They went to New Mexico and set off a 5000lb Explosion! It was their biggest explosion up to that point. In the two detonation images, I highlighted the areas in question with a red circle. Being a layman, I'm seeing a reflection of the detonation going on about 20 or so feet above the drum but is it that? The distortion appears to expand as the explosions grow and the camera is able to record it so obviously it's traveling at the speed of light but past that I haven't the faintest as what's happening. [link] [comments]  |
| We're viruses a precursor to life? Posted: 04 Apr 2020 04:34 AM PDT Viruses aren't alive, but are capable of evolving. I've read that some scientists have suggested they may be a kind of precursor to the origin of life. How much do we know about how and why viruses formed on Earth in the first place? Or, is that wrong, and did viruses require life to attach themselves to in order to be passed on? [link] [comments]  |
| Posted: 03 Apr 2020 08:38 PM PDT |
| Are there any examples of "good" viruses that have become part of the human system? Posted: 03 Apr 2020 10:17 AM PDT Some bacteria (many, actually) have ended up being beneficial for humans once they ended up getting and staying in our system. Is there a virus equivalent? [link] [comments]  |
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