- AskScience AMA Series: I am Elliott Haut, MD, PhD, FACS, a trauma surgeon from The Johns Hopkins Hospital in the United States. I'm here to talk about all things blood clots in recognition of Blood Clot Awareness Month-from deep vein thrombosis and pulmonary embolism, to COVID-19 and clots. AMA!
- Why do we have two of some organs (lungs, testicles,kidneys) but one of others (heart, liver etc..) ?
- From what we know about the Moderna and Pfizer vaccines, is it possible for SARS-CoV-2 to contain spike protein mutations that allow it to escape the vaccine-induced immune response, but still retain enough function to be infectious?
- Is the sexualisation of female breasts natural or learned?
- Can a mature tree be traced back to the specific seed that germinated via DNA?
- Is there a theoretical upper limit for the size that a black hole can grow to? What would happen if it were reached by one?
- Why do people 'look' tired? What actually happens to our faces (physically) when we've gone without sleep for a substantial amount of time?
- Why do so many flying insects have aquatic larvae?
- When large beetles fly, they make a specific sound. Is that noise just a by-product of then having forewings (elytra) or does it have an actual purpose like a warning?
- Does ocean life ever suffer from pandemic infections?
- Did man start inventing tools after he started using fire or after?
- We breath in oxygen then we breath out carbon dioxide, where does the carbon comes from ?
- Is there any research that has come out lately showcasing how any of the COVID-19 vaccines have or have not prevented spread of the main virus or its variants?
- Why was the term “centrifugal force” coined in the first place if it practically just doesn’t exist?
- Is there a Super Massive Black Hole at the center of EVERY galaxy?
- Are personalities anyway genetic?
- How do chlorofluorocarbons (CFCs) reach the upper atmosphere?
- Why do sand dunes that aren't on the ocean exist?
- Why does light refract towards the normal/vertical line, when it hits a more dense surface?
| Posted: 25 Mar 2021 04:20 AM PDT I'm Elliott Richard Haut, MD, PhD, FACS, Vice Chair of Quality, Safety, & Service in the Department of Surgery at The Johns Hopkins University School of Medicine and at The Johns Hopkins Hospital (USA). My clinical practice covers all aspects of trauma and acute care surgery, as well as surgical critical care. I am passionate about the diagnosis, prevention, treatment, and reporting of venous thromboembolism (VTE)-commonly known as blood clots. I am involved in numerous research projects on VTE and I have authored 250+ peer-reviewed articles. Follow me on Twitter at @ElliottHaut. I'm excited to be here today to answer your questions about all things related to blood clots in honor of Blood Clot Awareness Month. I'll be on at 1:00 pm (ET, 17 UT), ask me anything! Proof picture Username: /u/WorldThrombosisDay [link] [comments]  |
| Posted: 24 Mar 2021 03:58 PM PDT |
| Posted: 24 Mar 2021 10:32 PM PDT Do we know enough about the specific sequences targeted by these vaccines to say whether they are specific to highly conserved regions of the spike protein such that major mutations would lead to a non-functional spike protein? [link] [comments]  |
| Is the sexualisation of female breasts natural or learned? Posted: 24 Mar 2021 07:47 PM PDT |
| Can a mature tree be traced back to the specific seed that germinated via DNA? Posted: 24 Mar 2021 08:25 PM PDT Is it possible to trace a specific seed to a fully mature tree? For example, Can a seed be traced to the full-grown plant based on DNA? Would it be possible for me to catalog a seed DNA and then years later be able to identify the full-grown plant to that seed that was cataloged? [link] [comments]  |
| Posted: 24 Mar 2021 06:32 PM PDT |
| Posted: 25 Mar 2021 06:25 AM PDT |
| Why do so many flying insects have aquatic larvae? Posted: 24 Mar 2021 03:07 PM PDT |
| Posted: 25 Mar 2021 04:58 AM PDT |
| Does ocean life ever suffer from pandemic infections? Posted: 24 Mar 2021 01:41 PM PDT Idly wondering whether viruses or other infectious diseases affecting ocean creatures are able to spread on similar scales to human diseases. Is ocean water itself a good carrier for diseases? [link] [comments]  |
| Did man start inventing tools after he started using fire or after? Posted: 24 Mar 2021 11:45 PM PDT Did the tools, even the rough simple ones like sharp stones, come about after man started using fire to eat cooked meat or after? Was man "smart" before the brain evolved from eating cooked meat or the "smarts" came because of that? [link] [comments]  |
| We breath in oxygen then we breath out carbon dioxide, where does the carbon comes from ? Posted: 25 Mar 2021 03:42 AM PDT |
| Posted: 25 Mar 2021 07:16 AM PDT Just wondering if any research has been published about COVID-19 vaccines and their rates of prevention of spread of the virus. [link] [comments]  |
| Why was the term “centrifugal force” coined in the first place if it practically just doesn’t exist? Posted: 25 Mar 2021 06:51 AM PDT How and why did we come up with the term "centrifugal force", if it is a pseudo force and it does not actually exist. Was that a mistake or misconception? [link] [comments]  |
| Is there a Super Massive Black Hole at the center of EVERY galaxy? Posted: 24 Mar 2021 03:00 PM PDT I have read several obscure science articles describing the probability but none state it definitively. I know scientist say their is a super massive at the center of the milky way. I have been wondering if true why. [link] [comments]  |
| Are personalities anyway genetic? Posted: 25 Mar 2021 05:31 AM PDT |
| How do chlorofluorocarbons (CFCs) reach the upper atmosphere? Posted: 24 Mar 2021 09:22 PM PDT They say CFCs from old fridges and aerosols speed up global warming by catalysing the deionisation of the ozone. I also heard that CFCs are about 5x denser than air. How do they reach the upper atmosphere where the ozone is being depleted ? Does the atmosphere just fill with CFCs to saturation so they're everywhere ? is it winds ? Is it common for chemicals 5x heavier than their surrounding medium to gravitate up ? Also, how do they travel from the large population centres (where I assume they're produced) to the poles ? [link] [comments]  |
| Why do sand dunes that aren't on the ocean exist? Posted: 24 Mar 2021 03:14 PM PDT There are a few land-locked places in the United States like White Sands New Mexico where there are sand dunes. Nearby, throughout the rest of the generally desert climate of NM, AZ, and areas of Texas, there aren't sand dunes, but there is more than enough sand to accumulate and become dunes. Instead, in those surrounding areas, the sand is spread out and punctuated by rocks and plant life. But in these land-locked dunes, you don't see tons of rocks or plant life on top of the dunes because the sand is constantly moving in the wind (I guess?). Why do these dunes in the middle of nowhere exist but the surrounding areas are completely different? Does weather in one of these sand dune areas differ from other nearby desert areas - like, there's no rain, or the wind in that particular area is regularly higher speeds than surrounding areas? [link] [comments]  |
| Why does light refract towards the normal/vertical line, when it hits a more dense surface? Posted: 24 Mar 2021 04:14 PM PDT I ve been told this conserves energy and that thats part of the reason. Sadly this answer couldnt satisfy me, because why would the light wave want to conserve that energy. [link] [comments]  |
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