How do strawberries get infected with hep A? |
- How do strawberries get infected with hep A?
- Are Caves with lava rivers/pools (like in minecraft) realistic?
- When a antigen-presenting cell activates a Th-cell, does the Th-cell take the antigen? Or does the antigen-presenting cell keep it?
- Were any viruses or diseases eradicated during the pandemic due to global lockdowns?
- Can a person’s aching joints actually predict a storm?
- Why is an AC wire a composite wire of many tiny wires wound together (stranded wire) but a DC wire is a single thick wire (solid wire)?
- Does alpha decay result in a higher average binding energy per nucleon? If not, how does it make the nucleus more stable?
- why is LDR ohmic under constant intensity but non ohmic with changing intensity?
- What will you find in a typical cubic meter volume in space (lets say between earth and moon)?
- What makes fruit ripen when not on a plant?
- How does Paxlovid affect immune response to COVID-19?
- Why don't blood sucking parasites die by our immune system?
- why is influenca seasonal?
- Are there blue biological pigments?
- Do humans pollinate flowers at all whenever we smell them?
- What range of atmospheric pressure changes can be sensed by the body?
- Is there a term or specific rule sort surrounding the ‘shortened grammar’ often seen on signage?
- How do stem cells age? Are they immortal? If so, are there stem cell cancers? What's up with stem cell therapy?
- Can other animals cough or get irritants out of their lungs somehow, or are humans special in this way?
- What do scientists mean when they say the universe is flat?
- What does the scientific literature say about the functional differences in the roots of plant cuttings propagated in water versus cuttings propagated in soil? Will the water-rooted cuttings be impaired in any way when transplanting to soil?
- Is mathematics or a sub-field of mathematics concerned with reconsidering, testing and/or rewriting the basics or axioms?
- How can we define temperature for a black hole when temperature is a statistical concept?
- can perpetual exposure to lead (Pb) enlarge structure of amygdala over time?
- Do specific nerves have a set purpose, or do all nerves simply act as a means of sending signals?
| How do strawberries get infected with hep A? Posted: 30 May 2022 02:45 PM PDT Title. Is it something to do with the fertilizer like ecoli? Or is Hep A something that survives in the soil? [link] [comments] |
| Are Caves with lava rivers/pools (like in minecraft) realistic? Posted: 30 May 2022 08:35 AM PDT Also could you survive in the same cave as a lava river? [link] [comments] |
| Posted: 30 May 2022 01:27 PM PDT Just really really curious what people know about this detail. I've seen 1 video where the MHC II gives the antigen to the TCR, but I cannot find a verification anywhere on the internet. Thought I'd give it a shot in here, maybe there are some experts? :D Title of the video: 'The Adaptive Immune System' By 'Vaccine Makers Project'. It happens at 30 seconds. [link] [comments] |
| Were any viruses or diseases eradicated during the pandemic due to global lockdowns? Posted: 29 May 2022 03:30 PM PDT If so, which ones? If not, how did they manage to survive nearly a year of lockdowns? How did they adapt? Edit: spelling [link] [comments] |
| Can a person’s aching joints actually predict a storm? Posted: 29 May 2022 05:16 PM PDT |
| Posted: 29 May 2022 11:56 PM PDT |
| Posted: 30 May 2022 05:46 AM PDT |
| why is LDR ohmic under constant intensity but non ohmic with changing intensity? Posted: 30 May 2022 02:43 PM PDT why is LDR ohmic under constant intensity but non ohmic with changing intensity? what does it mean to be of constant intensity? I know that intensity is power/area. so as the power goes up, the area goes up as well. but what does this mean in real life example? what does it mean to have changing light intensity? i understand it would probably mean higher power over smaller area. but what does this mean in real life example? [link] [comments] |
| What will you find in a typical cubic meter volume in space (lets say between earth and moon)? Posted: 29 May 2022 04:40 AM PDT Is it absolutely nothing? Or are there any traces of gases or whatsoever? Thank you! [link] [comments] |
| What makes fruit ripen when not on a plant? Posted: 29 May 2022 11:27 PM PDT |
| How does Paxlovid affect immune response to COVID-19? Posted: 30 May 2022 06:14 PM PDT I've been reading quite a bit about Paxlovid "rebound," when people test negative at the end of their course of Paxlovid and then test positive again a couple days later. I've read several variations on this sentiment:
and from Monica Gandhi here:
So, what could that mean for the immune response? What exactly does it mean for the immune system to "see the full extent of the virus"? How might it affect antibody production, B cell activation, etc? Will people who take Paxlovid still acquire some amount of immunity after infection? [link] [comments] |
| Why don't blood sucking parasites die by our immune system? Posted: 29 May 2022 09:55 PM PDT Why don't smaller parasites like fleas or mosquitoes get killed by our immune system from the inside when they suck our blood? [link] [comments] |
| Posted: 30 May 2022 12:26 PM PDT Why are there flu-seasons and what happens to the virus in the meantime and how does it come back again? (I do understand that spreading is more successful in winter due to our habits etc but flu is almost nonexistent, so how does that work?) [link] [comments] |
| Are there blue biological pigments? Posted: 30 May 2022 12:17 AM PDT As it says on the tin. I'm away that blue eyes are actually from Rayleigh Scattering and dont have any pigment in them, but are there other examples in nature where organisms do have actual blue pigmentation? [link] [comments] |
| Do humans pollinate flowers at all whenever we smell them? Posted: 29 May 2022 04:07 AM PDT |
| What range of atmospheric pressure changes can be sensed by the body? Posted: 29 May 2022 01:07 PM PDT Some of my joints swell up when atmospheric pressure drops before a storm. It only happens sometimes, and I'm not sure why. Is this influenced more by the delta in pressure or by how quickly the pressure is changing? [link] [comments] |
| Is there a term or specific rule sort surrounding the ‘shortened grammar’ often seen on signage? Posted: 29 May 2022 02:56 AM PDT Many signs and labels use a sort of 'shortened grammar' in which certain words such as 'the' are omitted where their use should be obvious. I can think of a few common examples off the top of my head, although I have seen some signage where many more qualifying words are omitted: "Do Not Enter [the] Building", "Employees must wash [their] hands before returning to work", "Objects [seen] in [this] mirror are closer than they appear", … Is there some term for this sort of shortening and/or a general understanding of when and where it tends to be used, the specific 'rules' followed surrounding what tends to be eligible for omission, etc.? [link] [comments] |
| Posted: 30 May 2022 12:18 AM PDT I've been thinking about stem cell therapies lately, particularly for arthritis (not me, a friend) or as a potential theoretical Alzheimer's treatment. I'm aware that stem cells differentiate into the types of cells that need to be presented in the body from certain centres, and that they actually stick around with us all our lives. Now they are able to be used to restore a friend's knees back to an amazing degree (though not perfect). But if you received stem cell therapy from stem cells harvested from you when you were younger and put on ice, would the therapies be more effective? Is there a scientific reason to limit the number of rounds of stem cell therapy you can do, and would fully restored joints have virtually the same effective lifetime as the amount of time it took to get arthritis in the first place since adulthood? I think these questions could be answered by understanding more about stem cells, their life cycles, and their continued availability in our bodies for treatments in later life or in times of need. Also, is there a way to differentiate the fields of stem cell research looking into stem cells in our bodies day-to-day or those in foetuses? I hate to see people get hung up on the stem cell research debate by citing the morality of biopsying foetuses, when we could be researching the stem cells we live with everyday and celebrating groundbreaking advances in treatments and therapies. It has actually given me incredible hopes for the future to see how effectively my friend bounced back after 2 rounds of stem cell therapy, and I'm saddened to not see more people I know with serious arthritis not look into the therapy. Is there something inherently prohibitive to the procedures? Surely: biopsy. Isolate. Culture. Get patient. Knock out. Poke where bad. Bed rest. Has the potential to be incredibly cost-effective and rapid. In regard to Alzheimer's treatment: I've heard and observed that Alzheimer's is a form of dementia resulting from physical deterioration of the brain. Why not poke with a large dose with the appropriate stem cells? This is a lot I know, if it's too much to explain I'm open to doing some extra reading. Thanks in advance [link] [comments] |
| Posted: 29 May 2022 05:04 PM PDT I was just thinking, if I get pneumonia or breathe in smoke, my body is able to cough it out and deal with it quite well. But what if my cat gets pneumonia? I don't remember ever seeing an animal coughing, or expelling anything from their lungs. So what can an animal do when they have harmful things in their lungs? [link] [comments] |
| What do scientists mean when they say the universe is flat? Posted: 29 May 2022 02:09 AM PDT I don't understand it at all. Isn't the observable universe a sphere around us? I read something about euclidean geometry works in space and that's how we know it's flat? But then, it might be because the universe is so big, only the part we can see is flat? BUT ISN'T THE OBSERVABLE UNIVERSE A SPHERE? I don't get it. [link] [comments] |
| Posted: 29 May 2022 05:53 PM PDT This is a common debate in various Reddit plant communities and I want to know what the actual science has to say, not just anecdotes. [link] [comments] |
| Posted: 28 May 2022 10:40 AM PDT Or in general concerned with reconsidering something or things that are taken to be true. Maybe an example could be something that could seem absurd like '1=2' or '5+5=12'. I don't know, these were guesses, maybe you guys can make examples. Thanks for reading. [link] [comments] |
| How can we define temperature for a black hole when temperature is a statistical concept? Posted: 29 May 2022 04:34 AM PDT I mean, temperature is defined only in the thermodynamic limit i.e. when the number of particles in the system tends to infinity. Then how can we say that a black hole is at a particular temperature? What are the "particles" in consideration here? [link] [comments] |
| can perpetual exposure to lead (Pb) enlarge structure of amygdala over time? Posted: 29 May 2022 12:51 PM PDT |
| Do specific nerves have a set purpose, or do all nerves simply act as a means of sending signals? Posted: 28 May 2022 02:34 AM PDT What I mean is: In nerve grafting, they typically harvest a nerve (let's say the sural nerve) in order to reconstruct another nerve. Do nerves have actual specific purposes (on their own) or is it the location of the nerve itself that is responsible for it's job? (i.e. a sural nerve is the same as a sympathetic nerve so long as it is transplanted in the sympathetic chain.) I hope I worded that correctly [link] [comments] |
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