| Do the pupils of heterochromic people contract and retract at different rates? Does eye color affect the speed at which your pupils contract/retract? Posted: 10 Feb 2022 07:38 AM PST |
| AskScience AMA Series: We're Experts Here to Discuss Neglected Tropical Diseases and Why You Should Care About Them. AUA! Posted: 10 Feb 2022 06:00 AM PST African Sleeping Sickness (aka Human African Trypanosomiasis) River Blindness (aka Onchocerciasis) Chagas Disease Soil-transmitted helminths Schistosomiasis (aka Bilharzia) Leishmaniasis These are all are part of a family of illnesses known as Neglected Tropical Diseases [NTDs]. While malaria gets most of the headlines, NTDs deserve similar attention: collectively, they affect more than 1 BILLION people worldwide, primarily in impoverished communities. Despite treatments (such as the now infamous ivermectin) being available and effective for use against certain diseases, a lack of resources, infrastructure and political will has left numerous populations vulnerable to preventable suffering. And as the COVID-19 pandemic demonstrates, disease outbreaks in one country or region can end up affecting the entire world and the impact of these diseases of poverty is profound. Join us today at 1 PM ET (18 UT) for a discussion, organized by the American Society for Microbiology (ASM), on the science of NTDs. We'll take your questions on the basic medical science of NTDs, discuss current strategies for mitigating the disease burden, and suggest approaches for eliminating NTDs. Ask us anything! With us today are: - Dr. Caryn Bern, M.D., M.P.H (u/kinetoplast_1909)- Professor, Department of Epidemiology and Biostatistics, UCSF School of Medicine
- Dr. De'Broski Herbert, Ph.D. (u/drherbert11)- Penn Presidential Associate Professor of Immunology, University of Pennsylvania
- Dr. Julie Jacobson, M.D., DTM&H, FASTMH (u/DrJulieJ)- Founder and Managing Partner, Bridges to Development; Immediate Past President of the American Society for Tropical Medicine and Hygiene [ASTMH]
- Dr. Patrick Lammie, Ph.D. (u/patricklammie)- Director, Neglected Tropical Disease Support Center
- Dr. Laura-Isobel McCall, Ph.D. (u/LauraIsobel_McCall)- Assistant Professor, University of Oklahoma
- Dr. Jill Weatherhead, M.D., Ph.D., CTropMed, FAAP (u/Jweatherh)- Assistant Professor, Adult and Pediatric Infectious Diseases, Baylor College of Medicine and Texas Children's Hospital
Links: submitted by /u/AskScienceModerator [link] [comments] |
| What exactly happens when the immune system is able to contain a disease but can't erradicate it completely? Posted: 09 Feb 2022 01:29 PM PST |
| If there are stick liquids and sticky solids, are there any sticky gasses? Posted: 10 Feb 2022 04:48 AM PST |
| Does birth order have an impact on someone's personality? Posted: 10 Feb 2022 05:56 AM PST |
| If the moon is only 1.2% the mass of Earth, why does it half roughly a sixth the earth's gravity? Is gravity not proportional to the mass of an object in astronomy? Posted: 09 Feb 2022 11:49 AM PST |
| In twin models (genetics), why is it not possible to estimate the effect of dominant genetic factors (D) without additive genetics factors (A)? Posted: 10 Feb 2022 06:03 AM PST Does this have a purely statistical answer (like, not being able to disentangle the contribution of both factors) and/or a scientific rationale? submitted by /u/dilayercelik [link] [comments] |
| Is the dust transfer from the Sahara vital to the Amazon? Posted: 08 Feb 2022 09:23 PM PST The Sahara was green only a few thousand years ago so that dust being blown over the Atlantic and bringing rain down in the Amazon is a relatively new phenomenon. The Amazon rainforest is millions of years old. So how necessary is the Sahara desert to the Amazon? submitted by /u/Clacimus [link] [comments] |
| How do brain-eating amoebas (e.g. Naegleria fowleri, Balamuthia, etc) know the way to the olfactory bulb after binding to the mucosa? Posted: 09 Feb 2022 07:08 AM PST |
| Are neuroreceptors which induce EPSPs and IPSPs located on different parts of the postsynpatic neuron? Posted: 09 Feb 2022 03:27 PM PST This is something I vaguely remember reading in a textbook in my psychology degree but I haven't found anything relevant when trying to Google to confirm it. If I remember rightly, receptors that produce EPSPs are on the more distal part of the dendrites, while IPSP-producing receptors are either directly on the soma or at least on more proximal parts of the dendrites. The "explanation" (not so much of the mechanism which is obviously to do with ions and G proteins, rather it was more a way of thinking of it that helps you remember it, supposedly) was that it was like the IPSPs had to originate along the pathway EPSPs took to the axon hillock so they could intercept them. Or, it may have been the other way round, that the EPSPs had to be closer so they could overcome the IPSPs. I clearly remember that something was overcoming something else; unfortunately, you can conceptualise that both ways. Alternatively, the distinction may have been between the ionotropic and metabotropic receptors instead. Or, maybe, based on my lack of success Googling, neither of these things is true at all and you find receptors of all types all over the shop. So, Reddit, can you help? It's really bugging me and my textbooks are in another country so I can't look it up there either. submitted by /u/Quinlov [link] [comments] |
| How is it that pathogens with very high mortality rate don't go extinct simply by the fact that they kill their victims before they can spread it to others? Posted: 09 Feb 2022 07:04 AM PST |
| It’s known that there’s no general algorithm that can determine in fewer than k steps if a Turing machine halts in k steps. Does it follow that there is no general algorithm for determining if a set of n Turing machines all halt in k steps in fewer than n(k) steps? If so, what is the proof of this? Posted: 09 Feb 2022 10:55 PM PST For instance, if you want to know whether two separate Turing machines both halt in k steps, do you, in the hardest case, just have to run them each independently for k steps each (thus 2k steps to solve the whole problem) or is that not proven one way or another? submitted by /u/Boltzmann_Liver [link] [comments] |
| How do tears work in zero gravity? Posted: 08 Feb 2022 11:28 PM PST Was wondering what happens when you cry in zero gravity? What happens to the tears? Do they just flow out in bubbles? Can they perform their function? What about that little pipe that runs them down to your nose does it get any tears to clean the nose or whatever it does? submitted by /u/hariseldon2 [link] [comments] |
| What's the more modern consensus on Michel Jouvet's -paradoxical sleep- studies? Posted: 09 Feb 2022 07:31 AM PST I read a lot about him and his experimens mainly with cats,but I found a given quote which is intriguing and interesting: " Jouvet conclude that "… slow wave (NREM) and paradoxical (REM) sleep are not necessary for life (at least for 4–5 months for the first and about 8 months for the second), and we cannot consider their suppression to be the cause of any serious disorders in the body. A person who had lack of sleep and dreams for 4 months, of which there are only a few minutes of nightly hallucinations, can turn out to read newspapers during the day, make plans, play cards and win, and at the same time lie on the bed in the dark all night without sleep! In conclusion, we admit: this observation makes most theories about the functions of sleep and paradoxical (REM) sleep obsolete at once, but offers nothing else" (Jouvet, 2016). " https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8058214/ Is this true in a literal way? can a mammal survive without the state known as Sleep, or only under certain neurological conditions? submitted by /u/throwawayrty24t6 [link] [comments] |
| Ask Anything Wednesday - Engineering, Mathematics, Computer Science Posted: 09 Feb 2022 07:00 AM PST Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Engineering, Mathematics, Computer Science Do you have a question within these topics you weren't sure was worth submitting? Is something a bit too speculative for a typical /r/AskScience post? No question is too big or small for AAW. In this thread you can ask any science-related question! Things like: "What would happen if...", "How will the future...", "If all the rules for 'X' were different...", "Why does my...". Asking Questions: Please post your question as a top-level response to this, and our team of panellists will be here to answer and discuss your questions. The other topic areas will appear in future Ask Anything Wednesdays, so if you have other questions not covered by this weeks theme please either hold on to it until those topics come around, or go and post over in our sister subreddit /r/AskScienceDiscussion , where every day is Ask Anything Wednesday! Off-theme questions in this post will be removed to try and keep the thread a manageable size for both our readers and panellists. Answering Questions: Please only answer a posted question if you are an expert in the field. The full guidelines for posting responses in AskScience can be found here. In short, this is a moderated subreddit, and responses which do not meet our quality guidelines will be removed. Remember, peer reviewed sources are always appreciated, and anecdotes are absolutely not appropriate. In general if your answer begins with 'I think', or 'I've heard', then it's not suitable for /r/AskScience. If you would like to become a member of the AskScience panel, please refer to the information provided here. Past AskAnythingWednesday posts can be found here. Ask away! submitted by /u/AutoModerator [link] [comments] |
| In the block universe explanation is there a possible 'observer' within my current light cone that is experiencing the functional death of the universe? Posted: 09 Feb 2022 12:19 PM PST |
| My 3 yr old wants to know why the center of strawberries (the pith?) sometimes have empty space inside Posted: 08 Feb 2022 01:25 PM PST |
| Are women’s immune systems better than men’s? Posted: 09 Feb 2022 06:35 PM PST I just read that women's immune systems might be better than men's due to lower testosterone levels — is that true? What's the mechanism? submitted by /u/theplushpairing [link] [comments] |
| Can desiccant silica melt metal? Posted: 09 Feb 2022 05:56 PM PST Ok so i bought a thermal water bottle and I didn't realize that there were those silicone balls in there. So I was getting ready to clean it. So I put hot watered down bleach in it and let it sit for a while and when I went to dump the water out I noticed that the watered got in between the walls of the water bottle. So my question is- can that combo melt metal? submitted by /u/SubstantialAd8178 [link] [comments] |
| Do the tidal forces of the moon affect clouds? Posted: 08 Feb 2022 08:40 PM PST Do the tidal forces of the moon affect clouds, or any other types of fluid bodies on earth? If so, how come the ocean's tides are the only effect we (humans) are generally aware of or concerned about? submitted by /u/fjteran [link] [comments] |
| Why does the cation exchange sites in coco coir prefer certain cations over others? Posted: 09 Feb 2022 10:51 AM PST Hi everybody! I apologize for any spelling mistakes or weird phrases, English isn't my first language. I work with plants that grows in coco coir, and before we plant anything in the cocos, we have to flush and buff the coco coir. Cocos has a high CEC (cation exchange capacity) which means that the particles have a negative charge. Because of this it immobilizes cations. Cocos is naturally loaded with potassium (K+) and natrium/sodium (Na+). We flush and buff to replace this with calcium (Ca++) and magnesium (Mg++). I've read on a blogpost that cocos prefers Ca++ and Mg++ because it has two positive charges instead of one, but if that's the case, then why does it not prefer any of the cations with three positive charges like boron (B+++) and alumminium (Al+++)? Or any of the other cations from the second group like mangan (Mn++) or iron (Fe++)? There's of course the reactivity of the cations, where the cations from the first group are most reactive, the cations from the second group are medium reactive while the cations from the third group are least reactive. Please help me understand why coco coir prefer some cations over others! thanks :) submitted by /u/ems321 [link] [comments] |
| Do we have bits of fat embedded throughout our muscles like we see on steaks? Is there a purpose for this? Posted: 08 Feb 2022 02:08 PM PST |
| (Fusion/Nuclear Chem) Does tritium require less energy to fuse than deuterium? Posted: 08 Feb 2022 10:50 PM PST Alright, so here's a decent amount of questions that I've been eager to learn about but just can't find any good sources around that explain it in my basic layman terms. I know that deuterium requires a quite significant amount less activation energy to fuse, does tritium require even less energy than that? Are there any isotopes of any other element that take less energy to fuse than 1H? I understand that we are able to create fusion reactions with specifically deuterium, but would our current technology be capable of fusing 1H like stars can? submitted by /u/jamx02 [link] [comments] |
| If I have 2 gases with the same number of moles of gas and they are at the same temperature, but they occupy different volumes can someone explain to me why their kinetic energy would be the same? Why does the gas in the larger volume not need more energy to be at the same temperature as the other? Posted: 09 Feb 2022 09:17 AM PST |
