What is the mechanism in which neurons change their connections? How are they able to 'move' their axon terminals to 'undo' a specific connection with neuron A, and create one with neuron B? |
- What is the mechanism in which neurons change their connections? How are they able to 'move' their axon terminals to 'undo' a specific connection with neuron A, and create one with neuron B?
- Do mixed nerves contain fibers that are both sensory and motor in nature? Or do they just contain sensory fibers and motor fibers separately in a bundle?
- Does going from a supercritical fluid to a liquid count as a phase change? if a supercritical fluid has no distinguished phase?
- Is there a substance that mimics the effect of nicotine on acetylcholine receptors?
- Does mining have any impact on plate tectonics and/or the earth's crust/surface on a large scale? Also, could mining eventually impact the earth's rotation?
- May sound like a stupid question, but here goes: Why don't liquids in a vacuum sealed container stay hot forever since the heat energy has no medium to travel through? How does it lose its energy
- Is it possible to develop a drug that specifically targets the part of the occipital lobe that controls color perception and vividly changes a person’s perception of color for a temporary period?
- Why is there a vocal range difference between the sexes in humans and why is it not as apparent in other animals?
- Is there an identifiable difference between hair follicles on the scalp vs. the follicles from the side and back of the head?
- Why do we sleep less as we get older?
- By what mechanism do you become more flexible when you stretch daily?
- What is roughly the smallest planet size able to sustain a long-lived magnetosphere?
- Are more sugary drinks worse for your teeth than drinks with less sugar?
- If the minimum wage kept up with inflation ($21.50)*, what would be the increase in income tax revenue for the government from minimum wage workers?
- Why does the citrate ion have 3 distinct pKas for the 3 carboxyl groups? Wouldn't resonance on the 2nd carboxyl group make the 1st and 3rd carboxyl groups symmetrical?
- If Mars' core is completely molten, could a dynamo start up once its iron and nickel begins to freeze out into a solid inner core?
- If I remove all the contents of my fridge and place a can of beer, will it cool down faster than If I just left it with everything inside?
| Posted: 30 Apr 2022 05:35 AM PDT For example, in neuroplasticity, how are the neurons able to 'move' themselves to undo connections and create new connections with other neurons? I remember seeing a microscopic picture of a few neurons not very well connected between each other, and in the 'after' picture (after learning something), they somehow had grown many projections/branches from their cell bodies, connecting with each other. In other words, what is the mechanism behind, when neurons undo a specific connection (synapse) with a neuron, and 'move' it to another neuron? What causes them to 'decide' to undo that connection? Also, how fast do they move connections and change their shapes (in nanometres per second, for example, or is it more like nanometres per minute)? The speed of which the dendrites and axon terminals move to change connections. [link] [comments] |
| Posted: 30 Apr 2022 06:01 AM PDT Title. talking about mixed nerves like some cranial nerves that have both sensory and motor function, and splanchnic nerves which have a sensory and autonomic function (involuntary motor). Do mixed nerves contain fibers that are both sensory and motor in nature? As in fibers performing both sensory and motor tasks. Or do they just contain sensory fibers and motor fibers separately in a bundle? As in does the bundle of nerve contain both sensory and motor fibers? Thanks! [link] [comments] |
| Posted: 30 Apr 2022 01:47 AM PDT Bonus question - why does the heat capacity of a fluid moving from supercritical to liquid have a greatly increased specific heat capacity? What is it about the critical point? Cheers! [link] [comments] |
| Is there a substance that mimics the effect of nicotine on acetylcholine receptors? Posted: 30 Apr 2022 04:39 AM PDT |
| Posted: 29 Apr 2022 04:06 PM PDT Just wondering about the impact mining operations have on the world, literally. What's the long term impact in terms of the earth's surface, plate tectonics and perhaps even the earth's spin. Does mining have an impact on the actually mass of the earth? I would assume it's just movie matter from one place to another, but does it have a larger impact? [link] [comments] |
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| Posted: 29 Apr 2022 12:46 PM PDT Think temporary kaleidoscope vision, or something like that. Is there any way to do this without interfering with other important brain functions? I feel like any kind of testing could seriously mess someone up neurologically, and that's if it's even hypothetically possible. Imagine the profits to be made though; sounds like quite the party drug. [link] [comments] |
| Posted: 29 Apr 2022 12:23 PM PDT In humans males generally have a lower-pitched voice than females. From a quick google search, I found that male duck quacks are slightly deeper but not as apparent as humans. This difference isn't as evident in other vertebrates as in humans (or our hearing doesn't catch them). Are there any advantages to having different pitches? Is it a remnant of our hunter-gatherer lifestyle? [link] [comments] |
| Posted: 29 Apr 2022 11:13 AM PDT Besides DHT receptors, what are some other differences? Why are hair on top of he head more susceptible to stress and loss? Thanks. [link] [comments] |
| Why do we sleep less as we get older? Posted: 29 Apr 2022 08:48 AM PDT |
| By what mechanism do you become more flexible when you stretch daily? Posted: 29 Apr 2022 12:57 PM PDT I started working out this year, and on top of the muscle, I've noticed that I'm massively more flexible, which I assume is due to my long stretching routine before working out. I know that muscle builds with use because it is damaged, then repairs itself to be even stronger. Do you become more flexible in the same way [link] [comments] |
| What is roughly the smallest planet size able to sustain a long-lived magnetosphere? Posted: 29 Apr 2022 10:37 AM PDT I'm looking to design a low(er) gravity planet for a project I'm working on, and can't seem to find any leads on this question. Obviously, there are many issues with a planet being too small, such as inability to hang onto an atmosphere or sustain a long-term internal dynamo. But...how small is too small? Is Mars too small, or were there other factors at play, like unideal core composition or inopportune asteroid impacts? If Mars is too small, could there be an intermediate size between Mars and Earth that would be viable? Do humans even know the answer to this question? With Earth being relatively small and having an internal dynamo that's lasted 4.5 billion years, expected to go on for another billion years, is it really the smallest a potentially habitable planet could be? [link] [comments] |
| Are more sugary drinks worse for your teeth than drinks with less sugar? Posted: 29 Apr 2022 02:18 PM PDT The last couple of days I have been wondering whether my teeth get more damaged if I drink let's say a drink that has 10 grams of sugar per 100 ml opposed to a drink with 2 grams of sugar per 100 ml. In both cases, all my teeth get soaked in sugary fluid which in return damages my teeth because bacteria converts it into acid. So does it even make sense to swap to less sugary drinks if both hurt my teeth equally as bad? If both drinks do the same amount of damage, only drinking fluids with 0 grams of sugar per 100ml would mean less risk of cavities right? [link] [comments] |
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