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Dagl1 last won the day on January 7

Dagl1 had the most liked content!

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About Dagl1

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  • Location
    Maastricht, Netherlands
  • Interests
    Science; molecular biology (RNA and neuroscience (synaptic plasticity)), (quantum) physics, programming, behavioral psychology.
  • College Major/Degree
    2-MSc biomedical sciences (molecular biology) Maastricht University --- Tohoku University
  • Favorite Area of Science
    Molecular biology, cell biology
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  1. But why should we not strive for it anyway? We can definitely put people in space, and yes curing sadness (or any part of the human condition) would be worth it. All is it only for the pursuit of science? We have changed many things using science, why is THIS thing the part where we throw in the towel? Why not pursue it, fix the next issue (overpopulation) on the way. Of course, this is just my opinion, but I rather see us pursue the things that now seem impossible, than to throw in the towel. -Dagl
  2. Just an update, got part of it working, but stumbled upon another problem;/ Array = [5,2,3,3,4,6,8] Length = len(Array) for k in range(int(math.pow(len(Array),2))): i = k//Length j = k%Length # print(i,j) if Array[int(i)] == Array[int(j)] and j!=i: print('found one') This is what I got, and it finds duplicates, it just finds them twice. In my original code I fixed that by letting the second loop only iterate from i+1, however I am at a loss if that is possible here (knowing the possibilities of coding, I am pretty sure it is possible, but I haven't been able to figure it out). So I know there are a total of (don't know how to do Sigma summation here): (7-1)Sig(n)ma(i=1) = 21 internal loop iterations. Is this correct or not what you meant @Sensei? Using 21 iterations I get something like this (I put in 21 myself but I suppose that defining a sigma function isn't difficult (or Numpy has one)): Array = [5,2,3,3,4,6,8] Length = len(Array) for k in range(21): i = k//Length j = k%Length print(i,j) if Array[-int(i)] == Array[-int(j)] and j!=i: print('found one') the issue now being that i only reaches from 0 to 2, and j is still repeating 0 to 6. Could you give me a hint (doesn't have to be the full answer)? Thanks and have a nice day!
  3. Because I don't think that we can stop ageing in cells, but it may be feasible to replace them (see quote): Sure, if we could reverse ageing in every cell, and have an easy means to deliver that miracle treatment to every cell so that it also reaches every neuron, then I don't think that neurons would be an exception, however at the moment, I very much doubt a miracle drug/treatment will reverse the ageing process of a cell (sure maybe in another 50-100 years maybe, but not soon). I could of course be entirely wrong and it is just a year away, and I just don't know it, but knowing how complicated things get, and how many unknowns there still are regarding general cell function, I doubt it.
  4. Okay but... how.... My initial point was that we could possibly replace all cells, but then a problem would occur with neurons... How do you propose that we stop neuronal ageing at the cellular level? I mean... it seems pretty difficult, we don't really understand ageing, let alone know how we could reverse it, let alone reverse it in neurons... I understand that more research may find ways to stop ageing, but I feel it is one thing to reverse ageing in most organs, it's another thing to then just do that in the brain as well.
  5. But it's about the strength/adaptation of the synapses, so you would have to copy those strengths. Which is modulated by proteins, their modifications, their positions in the synapse, and RNA levels. It's not just the connections, it's each individual synapse, and the strength of each of those synapses.
  6. I would say that studies on synaptic plasticity and the molecular basis of memory (Kandel has a nice book on it, and some nice articles on the molecular basis of memories) , do definitely the notion that memories are the result of differing strengths between the connections of neurons (in my opinion). And although I wouldn't know how a study could 'prove' that personality is an emergent property of brain connections, I can't really see any other place where your personality would come from, especially based on all the neuroscience I know. One article: https://molecularbrain.biomedcentral.com/articles/10.1186/1756-6606-5-14 (the book is 'The principles of neuroscience)
  7. Oh f*ck, hahahaha how stupid.... I was so happy that it gave one answer, that I didn't think of it. But now I will have to reassess it, because i (k/7) will be an non-integer (which I can make into an int, but that seems to produce a wrong answer. I will take a look at it for a while before asking again, thanks for the help and the comment catching my mistake! Edit: Spotting quite a few mistakes in my quickly response to your answer, so I have some work ahead of me
  8. @Sensei Thanks for your answer (Domo Arigato Sensei;p) !! I was typing out that I didn't understand your answer, but I think writing out what I didn't get got me to understand what you said (I hope): Array = [5,2,3,3,4,6,8] # I should of course program the expansion but because I just want to understand this part right now, I copied it 7 times NewArray = [5,2,3,3,4,6,8,5,2,3,3,4,6,8,5,2,3,3,4,6,8,5,2,3,3,4,6,8,5,2,3,3,4,6,8,5,2,3,3,4,6,8,5,2,3,3,4,6,8] for k in range(len(NewArray)): i = k/(math.sqrt(len(Array))) j = k%(math.sqrt(len(Array))) if i == j: print('found one') I think this works as intended (I hope this is what you meant), thank you very much One more question is; does it make sense to do this, or just use that initial double-loop? @Ghideon I am not yet at recursion in my programming book (although I have watched videos about it before;p) I will have to take a closer look at the code you posted to understand it, but thank you very much as well! -Dagl
  9. It is basically impossible to say how soon results would appear, there are still many unknowns. Even if we could stop bodily ageing (by replacing cells with newer cells through stem-cell regeneration or something like this (just some speculation that sounds at least partially realistic)), what would we do about the brain? Replacing cells most probably means losing memories and personality. But maybe if we also find a way to read memories/upload them, it wouldn't be an issue. But both of those things are highly speculative and probably not something we will see in the near future (or ever). In case people mention that we may be able to upload some thoughts to the internet, there is a large difference between storing thoughts, and placing the entire neural network with all its nuances onto a computer.
  10. Hi there, hope you are all doing well in the current Corona situation! My code: Array = [5,2,3,3,4,6,8] for i in range(len(Array)): for j in range(i+1,len(Array)): if i != j and Array[i] == Array[j]: print('found one: ', Array[i]) I am still working my way through a python book and a question came up that had me identify duplicates within an array. Above is the solution which I came up with and it works. But I wanted to break out of both loops, because a previous iteration of this code produced each variable twice (I did not have the i+1 part). Now I found several solutions here: https://nedbatchelder.com/blog/201608/breaking_out_of_two_loops.html And one thing the writer proposes is the construction of a single loop (he actually just hides the double loops into a a function and then calls that function later). This made me wonder if it is possible to construct my program, containing two loops, into a single loop. I tried some variations of: for i, j in range(len(Array)): But have not been able to find a way to make this work. My question: is there a way to do this, or should I just stick with the double loop? Thanks for reading and stay Corona-free! -Dagl
  11. Instead of water? Not sure, water seems the easiest to dilute alcohol or isopropanol with
  12. 🤫 It seems aggressive?? Not my intention, could you also elaborate on what makes it sound aggressive so I can change that for the future? I did offer you my genuine interest, but also see I missed the ball on your question. Changes in ploidy (ploism?) will probably not have much effect (do not read 'no changes') depending on the species (in the case of social animals which change sex, based on the environment, this may well be one reason for phenotypical changes), but I don't see any reason why it would have to cause changes (if all else remains equal, and each gene region still can come into contact with the right parts of the DNA and everything remains accessible), although as the quote mentions it may be the start of speciation. I am not familiar enough with the actualities, but to come back to the topic at hand, these individuals within the species will not have the same genome at that point. I do get that I may be looking at this too stringently, as we can of course say that broadly speaking humans have the same genome, but if we would be looking at the exact sequences, we won't find any human with identical DNA. I suppose that way of looking at things isn't very functional, but I do stand by my answer to OP. -Dagl
  13. Could you elaborate, I am not getting entirely getting the question, although I will repeat what I said before in a little more detail: the genome contains structural parts of chromosomes, such as telomeres and centromeres. These are DNA regions that don't encode for proteins (and we generally don't really think of them when discussing the genome), but they are part of the genome. If one would have additional chromosomes/telomeres, then they do not have the same genome. Of course, if what was meant was; similar genomes, then of course that is possible. But as the question was about the same (identical) genome, it must also mean they have the same amount of chromosomes. Did I answer the question or completely miss the ball?
  14. Then do so. You also mentioned how some things imply other things, show it mathematically (give some examples that include numbers). You also said electric charge moves slower than light, how fast does it move exactly? You are hand waving, over, and over. Mordred is giving you plenty of room to include math, he even showed you an example thread. You however, are hand waving, avoiding the subject and being sloppy. What is a nearly one-dimensional tube? Although fractal dimensions are a thing, they have to do with self-similarity. Is your tube/line one-dimensional or not? What makes it 'nearly?. You assert, assert, and assert. Yet where is your evidence, where are the mathematical formulas attached to this?
  15. His point isn't that though, it is that he wants to minimise harm within reason. What is considered within reason is highly subjective. But he cannot change the fact that we live on this planet. I suppose he could shield himself and his family from radio waves, but have those been proven to be dangerous (I'm genuinely interested, although I suppose that researching such a thing is basically impossible, at the moment)? He may worry about those things you mentioned, but most of those cannot be changed, while there are plenty (although they are small minority in the western world) that live without a phone. So asking if he worries about stuff that realistically cannot be changed may not actually be very helpful. I do realise that in my first response I also mentioned other things, but as I said then as well, I believe those to have more meaningful impacts on health and they are things that can be (more) easily changed. *just assuming its a he, apologies if she is a she.
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