Is there a virus that we know exists but haven't been able to isolate it? |
- Is there a virus that we know exists but haven't been able to isolate it?
- Does the visual cortex get 're-purposed' in blind people?
- Are there any animal species whose gender ratio isn't close to balanced? If so, why?
- What happens to the food/drinks that "go down the wrong pipe" and aren't coughed back up?
- Which part of the Mesozoic era was the most biodiverse?
- *Where* did the Cambrian explosion occur?
- Are bad dreams about natural disasters regional? For example, are Midwesterners more likely to have nightmares about tornados? Are Californians more likely to dream about earthquakes, etc.?
- Do restriction enzymes require any flanking DNA?
- How does the delivery system of a vitamin affect its rate of absorption in the body?
- Will covid-19 have an exponential decay like it has an exponential growth?
- Does giving antiviral drugs increase the chances of resistance?
- Why do some fruits continue to ripen after being picked while others don't?
- Why are earthquakes more frequent along the boundaries of the Pacific tectonic plate relative to other plate's boundaries?
- What are some of the finer details about Jincan poison?
- What exactly is Sigma-Pi bonding?
- Is the common saying that sitting close to a screen regularly can cause short-sightednes backed by science?
- Does the CMB look the same from any point in the universe?
- Are there cyclic polymers, if not why not?
- Why does a concussion cause vomiting?
- There are a lot of different types of neutron stars, and they all seem to do different things. From what I understand, they are all formed by basically the same process, so what causes this diversity?
| Is there a virus that we know exists but haven't been able to isolate it? Posted: 11 May 2021 12:57 AM PDT If there is one, what is the challenge facing us in isolating it? [link] [comments]  |
| Does the visual cortex get 're-purposed' in blind people? Posted: 10 May 2021 07:22 AM PDT |
| Are there any animal species whose gender ratio isn't close to balanced? If so, why? Posted: 11 May 2021 08:07 AM PDT |
| What happens to the food/drinks that "go down the wrong pipe" and aren't coughed back up? Posted: 10 May 2021 09:44 AM PDT As many of us know, humans are bad at eating and drinking. Our epiglottises (?) occasionally fail at their ONE job and let small bits of food or drinks into our windpipe. Often, when this happens, we cough up whatever "went down the wrong way" and it's fine. If it doesn't happen, there are potentially really serious effects, including pneumonia. I get all of that. What I don't know (and am having surprising trouble Googling) is what happens if something doesn't get coughed up and doesn't create a significant-enough problem that it requires medical intervention. Lungs (obviously) don't have stomach acid or muscles designed to break down the thing, so does it just stay there, like the thin layer of crumbs under the couch cushions? Does liquid eventually get absorbed into Gatorade-fueled pleural fluid? What actually happens? [link] [comments]  |
| Which part of the Mesozoic era was the most biodiverse? Posted: 10 May 2021 01:29 PM PDT |
| *Where* did the Cambrian explosion occur? Posted: 10 May 2021 07:12 AM PDT I understand that the 'explosion' is actually something gradual, lasting millions of years. But is it thought to have a trigger at a single locale, and the new animal forms spreading out globally from there? Or do different new animal body plans pop up independently in lots of different parts of the globe? I suppose in my head I have a picture of this going on in warm, shallow, tropical seas but is that actually correct? What do we know about the positions of the continents at the time and does that play into the cause of the Cambrian explosion? Sorry if that's a lot of questions, but would be interested to know what's known/unknown, or point me in the direction of good papers/books. Thanks. [link] [comments]  |
| Posted: 10 May 2021 06:07 AM PDT |
| Do restriction enzymes require any flanking DNA? Posted: 10 May 2021 03:15 PM PDT Hey everyone, I have a quick question about restriction enzymes - if (in the most extreme example) the RE recognition sequence makes up the terminal base pairs of a DNA fragment, will that RE still cut efficiently? For context, I'm subcloning a cDNA fragment into pcDNA3 and need to use sites in the MCS that are very close to one another - nearly adjacent. I know that's the point of the MCS, but I'm just curious if there is any limitation on how close those sites can be (other than overlapping of course). Thanks in advance! [link] [comments]  |
| How does the delivery system of a vitamin affect its rate of absorption in the body? Posted: 10 May 2021 07:05 AM PDT Is there a substantial difference in absorption between vitamins as hard pills, chewables, dissolved in liquid, etc.? [link] [comments]  |
| Will covid-19 have an exponential decay like it has an exponential growth? Posted: 10 May 2021 07:29 AM PDT I understand exponential growth, the more people who get infected, the more there are to infect others, and more people get infected at a faster rate as time goes on. Infection rates start low and skyrocket as numbers get higher. Do viruses decay in the same way? The less people infected each day the less there are to infect others. Does decay start slow and then plummet faster as time goes on? [link] [comments]  |
| Does giving antiviral drugs increase the chances of resistance? Posted: 10 May 2021 05:49 AM PDT I know this does happen in bacteria with antibiotics, but does it happen in viruses? Is this why we don't get given antiviral drugs for most diseases? [link] [comments]  |
| Why do some fruits continue to ripen after being picked while others don't? Posted: 10 May 2021 05:56 AM PDT I know that different fruits are affected differently by ethylene gas in the ripening process, but what allows some fruits like pears and plums to continue to ripen after they are picked while others like apples and oranges need to be picked fresh? [link] [comments]  |
| Posted: 10 May 2021 11:00 AM PDT More specifically, I was looking at the USGS map of recent earthquakes (https://earthquake.usgs.gov/earthquakes/map/?currentFeatureId=us7000e1uv&extent=-79.23719,-675.70313&extent=84.9901,-197.57813&sort=largest&listOnlyShown=true) and noticed ~90% of the earthquakes occur around the boundaries of the Pacific plate. What makes the Pacific plate more different then the other plates? [link] [comments]  |
| What are some of the finer details about Jincan poison? Posted: 10 May 2021 07:10 AM PDT So I've recently learned about Jincan poison, and I've got some questions. When I googled it, it says the last survivor gets eaten by larva, but it never specified what larva, what species would it be? Is Jincan fatal? What are the symptoms? Considering it is an ancient Chinese poison using wild life native to south east China, is it possible to replicate this method with any venomous arthropod? Can animals also be used in this process? [link] [comments]  |
| What exactly is Sigma-Pi bonding? Posted: 10 May 2021 10:15 AM PDT |
| Posted: 10 May 2021 12:24 AM PDT |
| Does the CMB look the same from any point in the universe? Posted: 09 May 2021 09:15 PM PDT |
| Are there cyclic polymers, if not why not? Posted: 10 May 2021 03:58 AM PDT With that I mean long chains of ring structures. I dont mean side chains containing ring structures, but the polymer itself. And if it wouldnt work out because of repulsive forces couldnt you just make a copolymer with say (poly)ethylene? I also think there should be a "Material science" flair :) Edit: I know there are structures like Resins/Lignin with Ring structures which you would call polymer. Probably rings in a linear chain would form a bundle (which polymers do anyway) but could you just put side chains on the ring to lessen the effect of pi-pi forces on it? [link] [comments]  |
| Why does a concussion cause vomiting? Posted: 09 May 2021 10:51 PM PDT I had to take my son to Emergency today due to a head injury. This got me wondering why head injuries/concussions cause vomiting. I couldn't find much info on-line and it seems a bit counterproductive to healing. [link] [comments]  |
| Posted: 09 May 2021 03:30 PM PDT |
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