Studies have shown that the breast milk of mothers that have been vaccinated for Covid-19 carry antibodies to protect the baby (passive immunity). Does this process also confer active immunity? I.e. does the baby's body have any long-lasting protection should breast feeding cease? | AskScience Blog

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Tuesday, July 27, 2021

Studies have shown that the breast milk of mothers that have been vaccinated for Covid-19 carry antibodies to protect the baby (passive immunity). Does this process also confer active immunity? I.e. does the baby's body have any long-lasting protection should breast feeding cease?

Studies have shown that the breast milk of mothers that have been vaccinated for Covid-19 carry antibodies to protect the baby (passive immunity). Does this process also confer active immunity? I.e. does the baby's body have any long-lasting protection should breast feeding cease?


Studies have shown that the breast milk of mothers that have been vaccinated for Covid-19 carry antibodies to protect the baby (passive immunity). Does this process also confer active immunity? I.e. does the baby's body have any long-lasting protection should breast feeding cease?

Posted: 26 Jul 2021 08:03 PM PDT

Where does the energy that causes tides come from?

Posted: 26 Jul 2021 02:57 PM PDT

I know the moon's gravity causes it but from the looks of it, it seems to be creating energy out of nothing which should be impossible, like, does it come from the energy of the moon's orbit? If so then does that mean the moon will eventually crash into the earth in however million years?

submitted by /u/nbjax
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How do weather models take into account wildfire smoke / air pollution?

Posted: 27 Jul 2021 04:35 AM PDT

All the smoke that has been in the air the past few days probably has had some effects on the weather (blocking sunlight, nucleating condensation, etc.). Do weather forecast models take this into account? If so, how?

submitted by /u/-Metacelsus-
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If increased kinetic energy = perception of heat/high temperature, why does using a fan to blow around air (increase kinetic energy) cool us down?

Posted: 26 Jul 2021 03:47 PM PDT

Rather than some mind-blowing physics, I'm expecting this to be more of a common-sense kind of solution, but I've been stuck puzzling over it for a while.

submitted by /u/bobhob314
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Is it possible to make something like a Faraday cage but for ferromagnetic fields?

Posted: 26 Jul 2021 11:42 PM PDT

What happens when T-Cells or B-Cells are in the blood for too long?

Posted: 27 Jul 2021 03:10 AM PDT

We only really use them when we're infected with something, right? So, I imagine that they get deployed and leave after the job gets done....but what happens if the just chill in the blood?

submitted by /u/The_Start_Line
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What happens to food like chips, crackers, or cereal exposed to air that causes it to lose flavor and change in texture?

Posted: 26 Jul 2021 07:22 PM PDT

Why does the Black Sea have so few islands, compared with the nearby Aegean?

Posted: 26 Jul 2021 07:46 PM PDT

Could you make a metal alloy non-conductive?

Posted: 26 Jul 2021 07:18 PM PDT

Glass backs are increasingly common on smartphones due to wireless charging - there can't be a conductive material like metal between the two inductive coils. But there are many benefits to metal backs on phones, chiefly drop resistance. Is there any way to create an alloy that is non-conductive (or at least minimally conductive) yet otherwise retains similar material properties to metal?

submitted by /u/legoinventor510
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Why is it, that when we stratch an itch, we feel relief and the itching feeling goes away?

Posted: 26 Jul 2021 12:11 PM PDT

Someone asked this in my master's class as an offhand comment many years ago, and I still do not know why this is the case. I know not all itches are the same, but as someone who has sensitive skin I've ever since wondered why does the itching seem to stop or at least be relieved when the scratching starts.

Note, when I say itch I mean the feeling that something needs to be scratched, and when I say scratch I mean the action of scratching.

submitted by /u/munkijunk
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How did the Apollo capsule slow down for re-entry?

Posted: 27 Jul 2021 12:57 AM PDT

I'm reading Apollo 10 entered re-entry at 36,397 mph. That's about 20 times faster than a bullet. What was the primary way it slowed itself down? I wouldn't think parachutes would work at that speed, right?

submitted by /u/Rockfiresky
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Why do atoms gain or lose electrons even though it would make the charge of the atom not neutral?

Posted: 26 Jul 2021 09:00 PM PDT

Is Nonbinary presence lower or different in regions that use primarily a gendered language?

Posted: 27 Jul 2021 07:15 AM PDT

My question is a combination of a sociology and linguistics question. Does the language of a region being gendered i.e. not having non-gendered pronouns (like German or Spanish) affect the prevalence of non-binary gender identity, or the way in which it presents?

submitted by /u/sentinel101
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How did we first learn about enantiomers and chirality in nature and pharmaceuticals?

Posted: 26 Jul 2021 05:24 PM PDT

I coulda sworn it was from early birth control pills that didn't work and then cause birth defects but now im not sure and i can't find it on google. Orgo was 20 years ago for me :p

submitted by /u/smellygymbag
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Are sea level and evolution connected?

Posted: 26 Jul 2021 08:47 PM PDT

This is a question that's been on mind my a lot lately. Land plants increased drastically in diversity in the mid-Carboniferous, which was coincident with a drop in eustatic sea level. Theropods became prominent in the Permian, when eustatic sea level dropped again. Is this just bad science, or is there a connection here?

submitted by /u/jesus-chrysocolla
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Can the body remove plaque buildup in the arteries, if so how?

Posted: 26 Jul 2021 08:28 AM PDT

Apologies if this is a commonly asked topic, I did several searches on the subject both in and outside of this sub and couldn't find a satisfying answer.

Whenever you try to research cholesterol, even on the most niche, specific, science based sites the answers given are always "Mediterranean diet, excercise, stop drinking and smoking" and that's fine if I'm trying to make a lifestyle change to decrease my cholesterol, but that's not my question.

My question is: can plaque buildup be chemically (or otherwise) decreased in the arteries i.e. destroying plaque build ups and clots over time, and if so how?

The way that the concept of heart attacks, high blood pressure, cholesterol, plaque, and the general concept of heart and circulatory health are portrayed... It always seemed to me that plaque build up is a static, permanent, irreversible calcification process that latches onto the inner wall of an artery and stays there forever. It also seems as though even after improving one's lifestyle, the common knowledge is that those plaque buildups just sit there and never go away.

As a chemistry major with a healthy respect for the sciences my gut instinct says that's impossible or we'd all be dead by now. How could plaque never go away?

So: how does our body remove, destroy, reduce, etc. Plaque build up in the circulator system? Chemically? Mechanically? I can't imagine passing a plaque stone like a kidney stone, it sounds incredibly painful so there must be some process by which our bodies avoid all of this, right?

Edit: doing some further research I found that HDL cholesterol will "vacuum" LDL up and transport it to the liver to be removed from the body. As an amendment to my question: can you explain how this process works?

submitted by /u/Matt1050
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Why is lipid nanoparticle capture preferred to lyophilization for RNA?

Posted: 26 Jul 2021 08:10 PM PDT

With the two prominent uses if this method being the vaccines most of us have had, I was wondering why lyophilization is unfavorable to such a system. My educated guess would be that either RNA doesn't survive a freeze cycle or that the nanoparticles produced aid in the efficacy. I must emphasize that this technique is not unique to the vaccines we've all heard of. Anyone with knowledge of bionanotechnology, biology, immunology, and etcetera would have valuable input to this discussion.

I have flagged this as engineering as it seems to fit the topic the best. Chemistry, biology, medicine, and human body are all relevant as well -- I have studied and used these topics in my career as an engineer.

I ask this because I currently study drying of proteins and other hydrophilic macromolecule. I work to improve patient experience through formulation innovations.

submitted by /u/MThatcherSexDemon
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Why are humans limited to a particular running speed?

Posted: 26 Jul 2021 08:36 AM PDT

I've been watching the Olympics, and it seems that there is an upper limit to human running speed - what variables exactly dictate this?

submitted by /u/blubberpuss1
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Do fish "drink" water? Do they desalinate it somehow?

Posted: 26 Jul 2021 01:01 AM PDT

Water is needed for every life, how fish and others sea creatures handle salty water? Do those mechanisms differ in inland fish from sea fish?

submitted by /u/staszkon
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When people undergo hemispherectomies where half of their brain is removed, what ends up filling the space where the brain was?

Posted: 26 Jul 2021 05:00 AM PDT

I was reading an article where it mentioned that several people had half of their brains removed in order to treat seizures. I'm assuming that there just isn't a pocket of air sitting in these peoples' skulls, so is the cavity filled with blood or some sort of cerebral fluid?

Article: https://www.webmd.com/brain/news/20191119/they-had-half-their-brains-removed-heres-what-happened-after

submitted by /u/ALPaca3
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How much damages can a single volcanic eruption cause?

Posted: 26 Jul 2021 01:36 PM PDT

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