I don’t have a source for it, but I recall hearing that yes, their eyes work at a different speed than ours, and that’s part of why cats and dogs are generally not so interested in TV. Unfortunately I don’t know what search terms might be useful here since I don’t know if this has a technical name, but something like “refresh rate” or “fps” might help in the search.
Sometimes my cats will be interested in TV, especially if there are really interesting birds. One cat in particular was very interested in Felix the Cat cartoons.
Seldon develops psychohistory, an algorithmic science that allows him to predict the future in probabilistic terms. On the basis of his psychohistory he is able to predict the eventual fall of the Galactic Empire and to develop a means to shorten the millennia of chaos to follow. The significance of his discoveries lies behind his nickname “Raven” Seldon.
Our [particle physicists’] problems and the way we approach them are quite different from some other fields of science, especially social science. As one example, I think I recall reading that you do not mind adding a parameter to your model, whereas adding (certain) parameters to our models means adding a new force of nature (!) and a Nobel Prize if true. As another example, a number of statistics papers talk about how silly it is to claim a 10^{⁻4} departure from 0.5 for a binomial parameter (ESP examples, etc), using it as a classic example of the difference between nominal (probably mismeasured) statistical significance and practical significance. In contrast, when I was a grad student, a famous experiment in our field measured a 10^{⁻4} departure from 0.5 with an uncertainty of 10% of itself, i.e., with an uncertainty of 10^{⁻5}. (Yes, the order or 10^10 Bernoulli trials—counting electrons being scattered left or right.) This led quickly to a Nobel Prize for Steven Weinberg et al., whose model (now “Standard”) had predicted the effect.
I replied:
This interests me in part because I am a former physicist myself. I have done work in physics and in statistics, and I think the principles of statistics that I have applied to social science, also apply to physical sciences. Regarding the discussion of Bem’s experiment, what I said was not that an effect of 0.0001 is unimportant, but rather that if you were to really believe Bem’s claims, there could be effects of +0.0001 in some settings, -0.002 in others, etc. If this is interesting, fine: I’m not a psychologist. One of the key mistakes of Bem and others like him is to suppose that, even if they happen to have discovered an effect in some scenario, there is no reason to suppose this represents some sort of universal truth. Humans differ from each other in a way that elementary particles to not.
And Cousins replied:
Indeed in the binomial experiment I mentioned, controlling unknown systematic effects to the level of 10^{-5}, so that what they were measuring (a constant of nature called the Weinberg angle, now called the weak mixing angle) was what they intended to measure, was a heroic effort by the experimentalists.
This is an alternative birth method called “lotus birth” or more formally “umbilical non-severance” in which babies are left tethered to the delivered placenta until their cord desiccates and detaches from their body on its own, usually in 3-10 days, while applying salt to the placenta to increase the speed at which it dries. It will eventually fall off, however, after its delivery the placenta is no longer being supplied with the oxygenated blood it needs to survive, and becomes necrotic (dead). This can act as an easy entry point for infectious organisms to enter the neonate, and can result in life-threatening infections. Neither the American College of Obstetrics or the American Academy of Pediatrics have explicit guidance statements as to whether this should be recommended against. AAP has published that there have been multiple case reports of severe infections with various bacteria secondary to this practice.
This should not be confused/conflated with Delayed Cord Clamping, which is waiting 30-60 seconds after the baby’s delivery for some of the residual fetal blood in the placenta to be delivered to the baby’s circulation to prevent anemia. This has good evidence for benefit to the baby, is recommended by ACOG, and is basically standard of care in the US.
Source: ACOG and AAP publications, also I’m a 4th year medical student that has completed OBGYN rotations
I personally wouldn’t recommend it, I’ve seen babies die miserable deaths of sepsis and it’s heartbreaking. But I’m not going into pediatrics or OBGYN so thankfully this isn’t gonna be a discussion I have to have.
Good luck on your match! I’m still in second year, but I’m already reaching out to programs about setting up auditions and whatnot because I’m attending a small/new DO school, so I don’t really have establishment or prestige on my side.
You joke, but there are literally people who eat their own placenta. I know someone who did. Crystals and essential oils and energy healing and all that, you know. I don’t talk about that kind of stuff with her because for some reason we just can’t seem to find common ground lol
There is an assumption that everyone surfing Lemmy are from developed countries. I’m not generalizing the western placenta eating experience to Somalia or Bangladesh
I don’t really understand why you wouldn’t though? Like it’s just an organ, people eat organs all the time. At least this one involved bringing life into the world instead of death.
The only reason not to is if your brain is fucked up enough that you think it’s icky or something.
I’ve heard of people getting placenta pills to deal with the anemia after birth. I don’t plan on having kids and thus have never been interested enough to research it.
The placenta is not pleasant to look at, so I can imagine pills make it more palatable. I don’t think a lot of study has been done on the effects of eating placenta after birth, but it’s technically a separate organ that belongs to the baby.
So no matter how you spin it, they’re eating baby organs.
Ive heard of people using the placenta pills to help reduce postpartum depression. Not sure if that works. But research has been done to show it reduces bleeding after birth if consumed immediately.
Terrible source but its late and im tired: “Postpartum hemorrhage has been controlled by using a small quarter-size piece of placenta placed in the mother’s cheek or chewed by the mother first and then held between her cheek and gum” www.midwiferytoday.com/…/the-power-of-placenta/
Bleeding stops when the uterus shrinks back down so the huge open wound left behind by the placenta becomes a small wound. Oxytocin makes that happen, and you get that by just holding your baby. I don’t know how eating the placenta would contribute.
My money is on it being the elemental power of bullshit. It’s likely the same ingredient that makes homeopathy actually ‘do’ anything: time i.e., it would have happened at that point regardless.
I’m not sure it’s the meat…I think it might be the chemicals in the meat. This isn’t my hill to die on, but you’re totally OK to stick to the modern Dr’s advice if you hemorrhage after childbirth. I can’t think anyone will ever forcefeed you placenta 🙃
I’m a vegan who smokes weed and I think that’s the extent of my woo (though Ron Swanson would certainly disagree, I’m very often struck by how much woo German medical doctors are allowed to push).
I’d want to do it, partly because the large quantity of bioavailable iron calls to me, but also because of the oxytocin and potential bonding effects (if it doesn’t have any, it doesn’t have any: no harm done). I don’t think I want it enough to really push back against a doctor/hospital that didn’t want to allow it, but I might look for one that is open to it.
I have a friend that became one of those people after high school. She made a killing for a few years from whacky people who wanted her to make the placenta into Christmas ornaments… She tried showing me photos of her stretching it over glass balls but I couldn’t stomach it.
To somewhat play devil’s advocate, what’s wrong with a minute? What benefit are you expecting from leaving it on longer?
The long and the short is Delayed Cord Clamping is really the only thing we have data for, and that’s what we should do without evidence something else is better.
I have no evidence, just a general thought that there are millions of years of evolution behind the umbilical cord staying intact for longer than a minute after birth. Some people want to leave it on for a week, why? Maybe that’s a useful instinct.
But most animals don’t leave it intact. They chew through it shortly after birth. You can’t really have a tissue that is sturdy enough to survive tension during fetal development and vaginal delivery that then instantly falls apart, so it has to be manually severed after delivery. The vast majority of mammals don’t let it stay attached for long at all, because their offspring are pretty mobile immediately after birth. From my reading of some of the random websites that recommend this, apparently it was based on the observations of a single species of higher ape (a chimp I think) that doesn’t sever the umbilical cord quickly. But when we have been severing cords as a species for generations and the vast majority of other mammals sever the cord with their teeth, I think the evolutionary biology evidence points towards severing the cord quickly.
Now evolutionary biology isn’t a solid basis for medical practice, but we don’t really have much scientific data at all to base this on at this point. There have been reports of increased rates of serious infections from the practice, which has face validity with the fact that you’re leaving a devascularized piece of tissue attached to the vascular system of neonate with an immature immune system. Outside of infection, there has been some case reports of polycythemia (excessively high red blood cell count) and jaundice in these infants. This makes sense physiologically. While attached to the placenta there is a greater intravascular volume available to the infant, which is the entire basis behind delayed cord cutting. It stands to reason that continuing to allow that extra blood volume to enter the infant would result in polycythemia and jaundice.
I’m not intimately familiar with the foundational literature by which the standard DCC cutoffs of 1 minutes or cessation of umbilical pulsatility were founded upon. There could be a very real argument for saying, should the time be 2 minutes? 5 minutes instead of 1? Or should we at least study it if it hasn’t been already?
In summary, we have a piece of dead/dying tissue attached to a physiologically stressed neonate with an immature immune system. Leaving it attached for days is in contradiction to the vast majority of other mammalian labor behaviors, is inconsistent with the majority of human’s labor history, and has a clear pathological mechanism by which the commonly reported complications can be easily explained. Without some legitimate evidence to actually support benefits or disprove the risks, I think this practice should be discouraged by healthcare professionals.
I’m sorry you’re getting downvotes. I’m betting the bulk are because you’re in c/askscience saying you don’t have any evidence to support your question, but that’s kinda the whole reason to ask a question. You weren’t speculating in a top level comment so I think it’s rude to be downvoting. As far as I can tell you’re asking genuine questions which is kinda the whole point of this community. Fuck the haters, ask questions when you’re curious!
Well they don’t eat it to get it off of the baby. While I’m not a vet or a zoologist, my understanding is they eat it for the nutrients as well as to help remove the scent, and newborn animals are easy prey and targeted by predators.
I think gravity and light work the same on psych majors as it does physics and engineering students…
I kid.
So in biology I know e the Euler number is important. It is used in growth equations (from finance to physics as well).
Statistics is fucking huge in every field. That is how you measure uncertainty. Bell curves and the Five Numbers and all that stuff is how you analysis thousands of widgets coming off an assembly line, or measurements in the social sciences field.
I believe you mean social sciences. They do that by indicating statistical significance or deviation.
Humanities, like philosophy, languages and arts don’t use formulas all that much to describe their work, but it could probably be done using a similar statistical approach for some things.
E = mc^2 is not an equation relating to gravity in the way you imply, that’d be the Einstein Field Equation [1], which still depend on G. And as far as we know, c is also a constant.
Then I’d guess a bunch of statistical constants probably show up in the humanities all the time. Is that what you are looking for, or some closed form expression with the constant?
Coal and lime probably don’t have a high enough inductance to be heated by induction. Induction furnaces are limited to metals as far as I know. Also, the temperature required for this process is almost 4000°F, which is difficult to obtain by combustion. Thus, electric arc is about the only way to go.
But the process does just require heat, right? So if you had a magical furnace that could reach that temperature, it would work as well? Or does the electric arc itself do anything to the chemistry?
Yes, you could probably use a laser furnace if it was cost-effective at those power levels. But it’s not even close. Arcs are and very practical in almost every sense and ridiculously cheap besides the power they consume. And a laser would consume more.
You’d be talking about replicating the triple-alpha process in a fusion reactor, and it’s a process that takes places at much higher temperatures and pressures than other stellar nucleosynthetic reactions. Assuming you could get the conditions right it may be theoretically possible, but it’s probably much further off than even viable deuterium-tritium fusion.
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