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Showing content with the highest reputation on 04/27/20 in all areas

  1. OK, let's take a step back here a bit. Phage roughly speaking have two states. One is the lysogenic cycle, the other one is the lytic one. If lysogenic they remain inactive and are stably reproduced with the host genome. Once certain conditions are met, e.g. if the bacterium is exposed to stress, the phage can enter the lytic cycle, in which it reproduces and eventually destroys its host. Phages that have a lysogenic cycle are called temperate bacteriophages. In contrast, there are also agressive phages that predominantly (or solely) use a lytic cycle for reproduction. These are, unsurprisingly, called lytic phages and this is what the text refers to.
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  2. You can do it, but it's not easy. https://en.wikipedia.org/wiki/Cleanroom The problem is the hurricane you need . A cough can travel as fast as 50 mph and expel almost 3,000 droplets in just one go. Sneezes win though—they can travel up to 100 mph and https://www.lung.org/blog/sneeze-versus-cough
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  3. Several valid points regarding Sweden have been made in posts above. My experiences so far: -There is not enough data available to state anything conclusive regarding the current approach here in Sweden. It's too early. -Most decisions so far seem to be based on scientific evidence. -As far as I can tell there are good models, adjusted to local conditions but maybe not adjusted to Corona yet My guess* is that the lack of data makes it hard to run the models with a valid set of parameters, models have been proven to work in other situations may or may not produce good predictions. The models' predictions are open for various interpretations. Data in this early stage can support both a lockdown and an open strategy; there is an overlap. Both may be sound scientific interpretations, there are scientists (and others) on both sides in the discussion. I can't guess if this policy will have a good or bad outcome. But I can see the logic behind the attempt to balance for instance: -Base decisions on local conditions, not so much on what others have done. -Try to close down enough to allow for health care to cope and adjust. But do not close down more than that. -Try to make recommendations that people will choose to follow over an extended period of time, it is not a three weeks sprint run for a vaccin. There are lots of other observations to add but that would turn this into blog post. If there is interest in some specific aspect I'll try to answer or find sources. *) I do not have studied the numbers and methods enough claim any insight (yet).
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  4. I think the need was never in question (as well as for the other treatments). Due to the ongoing situation, often the designs are less than optimal and/or part of emergency/mercy treatments. I have a hard time imagining how it would work. Most of the viral particles are not just sitting on tissue, but are inside the cells (or after leaving cells would circulate). I would assume radiation that is damaging to them, would also be harmful (probably more so) to live tissue. After exiting they also disseminate via body fluids so point sterilization does not seem to be the right strategy to me.
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  5. I think it should be noted that Sweden has a soft measures, with some restrictions, as well as some school closures. Countries which got ahead of the curve initially also had measures in place as well as overall high compliance to avoid more stringent restrictions. Initially that approach just did not work in Europe although there were some warnings, folks did go to mass gatherings and festivities. Presumably (but not certainly) folks might be more apprehensive now. As SJ Sweden is another live experiment among all the others and we do not have the data yet to clearly declare the right strategy. Moreover, it is too premature to assume that there is or there will be herd immunity. We do not yet have sufficient data to ascertain a) whether folks actually become immune (but also no hard data to contradict) or b) the proportion of infected folks become immune and c) if there is immunity, how long it lasts. The honest truth is that we still have huge knowledge gaps that we need to address. For a pragmatic, soft opening with observation, there also need to be certain structural elements in place. At minimum, it is necessary to have sufficient tests around, so that one can identify and trace new infections accurately and timely, one has to ensure that there are enough capacities in case severe cases spike and sufficient personnel needs to be allocated for timely data collection and dissemination.
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  6. Are they going to remove the video? I'd love to post all the math but I'm not sure how. Can you post images? To answer your question, half of it is around 3:30 and the other half around 22, equations for gamma and omega respectively. The two multiply. I've attached pictures of the two equations. Keep in mind they multiply.
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  7. Apparently his last 22 min. press briefing, was caused by a CNN reporter, who D Trump wanted moved back, from the front row to the sixth. Both her, and the other reporter in the sixth row refused to move, as is their right, and that got the President 'upset'. He cut the briefing short and refused to take any questions. https://www.mediaite.com/news/wh-tried-to-force-cnns-kaitlan-collins-to-move-to-back-row-at-briefing-reportedly-threatened-secret-service-involvement/ Real 'grown up' behavior.
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  8. More people will die, people that otherwise could've had a vaccine or a hospital bed and ventilator in a medical facility that would be overwhelmed if we do today what you are suggesting.
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  9. Two subjects you might be interested in: * Boolean algebra. That's the "algebra of logic and ,set theory" if you like. It makes some of the connections you're thinking of. A logical OR is plus, a logical AND is multiplication. The union of two sets is their sum, the intersection is the product. Products distribute over sums as they do with numbers, and so forth. Boolean algebra unifies a lot of different things that are really the same thing as you're sensing. https://en.wikipedia.org/wiki/Boolean_algebra * The Curry-Howard correspondence and related notions. That says that computer programs and mathematical proofs are the same thing. This has repercussions in computer science and also philosophy. https://en.wikipedia.org/wiki/Curry%E2%80%93Howard_correspondence
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  10. Well, yeah. Drilling in the arctic is the most intelligent move right now, clearly /sarcasm
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  11. OK. And back to complete gibberish.
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  12. Check out Gibbs and Helmholtz free energies, which relate to non-PV work. Note that they, too, make assumptions about variables being held constant. https://socratic.org/questions/what-are-helmholtz-free-energy-and-gibbs-free-energy
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  13. Do you have anything of substance to add? I mean, do you have evidence that Trump doesn't have a financial stake, when the reporting is that he does? Yes, it's small, and this won't move the needle, but there is a substantial track record of Trump funneling money to himself so it's not unreasonable IMO to have raised the question. If all you have is "bias!" then please go vent somewhere else. All this whining is giving me a headache. (To me the more likely motivation is that if it pans out, he's hailed as a hero. Nothing more than his narcissism in play)
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