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jimmydasaint last won the day on August 11 2018

jimmydasaint had the most liked content!

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About jimmydasaint

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  • Birthday 08/14/1962

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  • Location
    Farnham Royal, Bucks
  • Interests
    PhD and postdoc then Science teacher. Hobbies are eating crisps and watching Trash T.V. Love 'Man vs Food' and 'South Park'. I also like long walks with my wife, playing computer games with my children and the occasional Table Tennis game.
  • College Major/Degree
    PhD Biology
  • Favorite Area of Science
    Biology, Genetics, anything
  • Biography
    Post doc then general dosser, know nothing but want to learn everything
  • Occupation

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  1. jimmydasaint

    Bacteria power

    Interesting find. I did not believe it at first but then read these quotes: https://www.quantamagazine.org/swarming-bacteria-create-an-impossible-superfluid-20180726/ There is also a model stated here: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.121.018001 As for having a motor driven by bacteria, that need warmth and a continuous flow of suitable nutrients - dream on!
  2. I am so glad that China, an economically developed nation, have entered the space race in such an able manner. Let's hope that they open up data and pictures to the world in an open and unselfish way. This is a great moment for the whole of humanity - not only China and let's not be small minded here. Congratulations China!
  3. /nice one mate. Thank you for the information.
  4. First of all, it is no surprise that computer scientists would consider DNA as an excellent information store. Treated correctly, DNA can be frozen and kept for potentially hundreds of years if I believe the magazine article which I scanned very quickly today. Also, there are 2 billion base pairs in the entire chromosomal content of one cell nucleus which are responsible for the encoding of roughly 21,000 genes to make a human being IIRC. However, here is the bit where I need help. The article claimed that 9 base oligonucleotides could be used to code for short instructions and that 13 of these 9 base oligonucleotides could encode 13 trillion "words" of code (in the same way that sentences could be broken into words). I am assuming that I read this correctly. Not knowing coding, can someone clarify: a) What it means by words of code and b) What technique would allow this code to be read quickly enough for practical purposes? In the meantime, I will hunt for the original article...
  5. Is there a particular model which is more plausible than others about the movement of DNA from the organelle to the nuclear chromosomes? I am making an assumption here that the genes for mitochondrial replication are spread amongst several chromosomes as a "buffer" to avoid deleterious mutations, but I could be corrected...
  6. These are questions where I have struggled to find answers. How did instinct arise? How did it become "embedded" in species of animals? Are the changes epigenetic and passed on in subtle base modifications (e.g. methylation)? Do instincts change? The Great monarch butterfly seems to use the sun to guide itself huge distances. I wonder if the amount of sunlight is a cue that then allows instinct to fly to "kick in"? Great monarch butterfly
  7. Are some of the genes for replication of mitochondria and chloroplasts found in the cellular chromosomes? One would need to explain why the cell's chromosomes also contribute in a pivotal way to the replication of organelles and how the genes got there in the first place. Or are the DNA plasmids found in the organelles enough for replication?
  8. jimmydasaint

    Mammals turn to night life to avoid people

    There are two papers - one on bats, including wild bats in an uncontrolled but closely observed environment. The other is on tracking wild tiger movements in habitats fragmented by humans. These are looking at end behaviours which are measurable and provide evidence. How could you provide evidence for any behaviour which is not measurable? It would not be considered evidence by you! Evidence is only provided on the end results of behaviours surely!
  9. jimmydasaint

    Mammals turn to night life to avoid people

    All behaviour is human behaviour? I am now worried! Did you read the two pieces of evidence that were presented by me, including the figures? I would certainly read them prior to such erroneous and hasty posting. Do you know that circadian rhythms in mammals are controlled in the same way as humans and that melatonin is similarly involved. Did you know that oxytocin receptors in some mammals determine nurturing behaviour of the young, which may be similar to humans? (I don't know if papers are out about this phenomenon in humans). I gave you evidence = please take time to read and consider it. All behaviour is not human behaviour and we certainly get a lot of clues about human behaviour from animal studies (e.g. Pavlov's dogs). Oh, and Science is about theory/hypothesis followed by observation and analysis. Falsification is a method for reaching objective truths; hence the carefully couched language of most scientific papers.
  10. jimmydasaint

    Mammals turn to night life to avoid people

    I see A meta-analysis is an overall view based on other analyses by other researchers. This marks a review of trends about "nocturnality". The original paper can be share here: http://science.sciencemag.org/content/360/6394/1232 Also, because you want evidence, there is evidence of bat behaviour being affected by streetlight illumination, here: null https://besjournals.onlinelibrary.wiley.com/doi/abs/10.1111/1365-2664.12206 If you go straight to the figures, you will see a very clear change in behaviour when streetlight illumination is in force. Also, there is evidence of humans affecting tiger populations by their living processes including farming: The evidence is presented about six key factors which affected tiger movement (e.g. perennial water bodies) and then presented observations and analyses about each one. You can find the paper here: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0039996 They did not look at some tiger poo and make analytical statements: they performed the field work.
  11. jimmydasaint

    Mammals turn to night life to avoid people

    Wow! What a remarkably obtuse answer! From a quick glance, this looks like a meta-analysis of 76 published studies (all of which are likely to have been peer-reviewed). The opinion reached by at maximum 76 teams of researchers who use the scientific method are likely to be better than you sitting at your computer and trying to rubbish their work. Don't talk complete garbage. Also, if you are a troll, you are likely to get caught early with your stubborn and near-sighted nonsense.
  12. jimmydasaint

    How to deal with plagiarism

    Mathgeek, I plagiarised your post here: Just to agree with what you have written. Also, it may be possible that authors who are not expert in English would be more willing to plagiarise because they might not have the range of semantic and syntactic skills to enable them to rephrase a paragraph which appears to be perfectly written from their viewpoint. In short, help should be available to rephrase a scientific statement for people who are imperfect in written English skills (I include myself in this description due to this repetitive and word-heavy paragraph which I have just written).
  13. jimmydasaint

    New study again proves Einstein right:

    beecee, superb find which, IIRC, support the Classical Model. What are likely to be the fields of enquiry (no pun intended) for string theorists in the future?
  14. jimmydasaint

    What is faith?

    I don't know about the Big Bang as an act of faith. I thought the theory had pretty strong evidential basis. Big Bang evidence As a first cause, it is pretty good. And yes I base my faith on my own train of logic and inference which is my own personal opinion based on my own reasoning. I do not expect others to follow my reasoning. Like I said, I am not here to bang on a religious book - I am sharing my thoughts and opinions. If there is evidence of consciousness/soul after death then it would back my thoughts further.
  15. jimmydasaint

    What is faith?

    Sure. hope you are keeping well mate. All three Revelations talk about something called the soul which has a relationship with the corporeal part of existence. By its own deeds, it either elevates itself to a higher plane (Heaven) or a lower form of existence (Hell). We are also causative agents (apart from the Supreme Intelligence which caused the Big Bang) and our actions on Earth have consequences - to improve or degrade the standard of life of others. Those who give of their wealth, or time, generously raise society (and their own soul) whilst those who hoard their money and are filled with the ego of power (e.g. Pharaoh) destroy or corrupt society (and their own soul). The Revelations gave their guidance in the form of metaphor and allegory. I am not quoting these directly, it would take too long unless you want me to elaborate further?