How do doctors treat patients who are suffering from extreme starvation? |
- How do doctors treat patients who are suffering from extreme starvation?
- What is the different between Stresses and Pressures?
- How do haphazardly folded graphene sheets in carbon fibres provide greater strength than graphite?
- How does exercise promote muscle growth?
- Is there a lifeform which does not use DNA/RNA for its genetic code?
- Genetics : Can a "crossing over" happen between X and Y chromosomes ?
- Is the Endocannabinoid system part of the Autonomic Nervous System, or just a system that operates cohesively?
| How do doctors treat patients who are suffering from extreme starvation? Posted: 22 Nov 2019 10:27 PM PST Inspired from this post: https://www.reddit.com/r/pics/comments/e093tq/an_emaciated_union_soldier_upon_his_release_from/ It makes sense that feeding someone in this condition can kill them, but how do doctors fine the line between feeding them too much and not enough? [link] [comments]  |
| What is the different between Stresses and Pressures? Posted: 23 Nov 2019 02:13 AM PST I am a fresh mechanical engineering student and as i start learning solid's mechanics , i am confused between the different of these two as they both have same formula ? Force by area. Thanks [link] [comments]  |
| How do haphazardly folded graphene sheets in carbon fibres provide greater strength than graphite? Posted: 22 Nov 2019 04:50 PM PST So layers of graphene in graphite are joined together via Van der Waals forces which are very weak. Carbon fibre is much much stronger than graphite. Wiki says that the main difference is the different interlocking methods, but doesn't explain how haphazardly folding these graphene sheets provides stronger bondage between all atoms. Any help is appreciated, thanks. [link] [comments]  |
| How does exercise promote muscle growth? Posted: 22 Nov 2019 07:19 AM PST I've just started going to the gym recently and this question just struck me and I didn't know the answer; hoping some of you guys can help! [link] [comments]  |
| Is there a lifeform which does not use DNA/RNA for its genetic code? Posted: 22 Nov 2019 07:12 AM PST I'm not sure if the title is the best way to word the question. After reading a thread earlier about viruses, I was reminded of something I read a long time ago, but I can't for the life of me remember what it was and my searches are turning up nothing. I remembered reading about some microorganism, I don't want to call it a Virus/Bacteria/Parasite because I'm not sure if that would be accurate, given the discussion I remember being that it was an "outlier" so to speak. It was something along the lines of it didn't use DNA/RNA for its genetic code, or had no common ancestor like everything else. I do remember it sparked theories of extraterrestrial origin (possibly dropped by a meteor, or was the original "life" on earth before something supplied what became life as we know it now, if that makes sense). Or it was "beat out" by DNA/RNA. Or it was some divergent phenomenon. I can't recall. Does this sound familiar to anyone? If so, what are the implications of the existence of such an organism? And could it in any way interact, affect or "infect" life as we currently know it if its "code" is so foreign? Thanks! [link] [comments]  |
| Genetics : Can a "crossing over" happen between X and Y chromosomes ? Posted: 22 Nov 2019 09:12 AM PST Hey Askscience, I'd need help from some people that know a little in Genetics. In general, since X and Y chromosomes aren't homologous, the Y one being smaller, "crossing-overs" can't happen between then. In any way, I read in some science magazines, that the X and the Y chromosomes still have some homologous parts between them. So would this mean that a "crossing-over would happen ? Background info : In bio class we had a test on genetics. The subject was on the color of a cat's robe, which depends on 2 allelles from X chromosomes. Eumelanin that codes a black fur and Phreomelanin that codes an orange fur. Plenty of female cats have a "tortie" fur, a mix of both colours, since they have 2 X chromosomes. Our aim was to show how certain male cats could have a "tortie" robe. The main answer was a trisomy, after during Anaphase I so one of the cells had 2X chrs, one with the Xn allelle and on with Xr allelle. If this cell had children, there could be one with XrXnY, which would be a male "tortie". If the loci of Xn and Xr aren't the same, there can be a crossing-over between the 2X's leading to one X having both allelles and the male descendant would also be "tortie". But if the loci of the allelles weren't specified in the test subject, we can perfectly extrapolate if the X and Y chromosomes have only a small Homologuous part, there can be a crossing-over between them (even really unlikely) so one allelle is on the Y chromosome, and a descendant could be XnYr or XrYn ? My teacher is really stubborn, she only believes in the magazine "Nature". But any renowned scientific could be ok. Can any of you help me on this subject ? Sincirely [link] [comments]  |
| Posted: 21 Nov 2019 07:11 PM PST |
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