What exactly is meant when we hear up to 25% of Covid-19 carriers could be asymptomatic? |
- What exactly is meant when we hear up to 25% of Covid-19 carriers could be asymptomatic?
- What does catnip actually do to cats?
- Is there a period where tadpoles can breathe both in the water and on land or does the transition happen instantaneously?
- Are birds beaks attached to their skull? If so, How are they pigmented so much?
- Dues to their close generic relationship, are apes susceptible to the Corona Virus?
- How does a vaccine against pneumonia work?
- Why does supranormal dopamine activity in psychosis/schizophrenia not produce the subjective well-being or euphoria generally associated with dopaminergic stimulants and opiates?
- Why is the Ohio River considered a tributary to the Mississippi River and not the other way around?
- Ask Anything Wednesday - Physics, Astronomy, Earth and Planetary Science
- How come viruses live longer on hard surfaces?
- Do plants get climate shock when being moved to the other hemisphere?
- What makes this recent SARS outbreak (Covid-19) so much more viral and deadly than the 2003 SARS outbreak?
- Is human hearing phase sensitive?
- Can CoViD-19 act like Herpes or other viruses?
- Are there viruses that affect specifically to only one species of animal (cats, dogs, etc)?
- Why do scientists have such high Hope's of a vaccine/cure for COVID-19 yet viruses like HIV are unable to have one developed despite being discovered for a few decades?
- Can chimps contract salmonella?
- Is there an evolutionary reason we touch our faces so much?
- How does a CD really work? How do they store data?
- If someone got a virus like Aids while pregnant, does the baby also get aids? If not why?
- How are the floaters I see in my eye in focus?
- What is the Coma of a Comet exactly made up of?
- Viruses need to infect a cell to replicate. Why can’t they just infect skin cells, and why are lung cells being infected so common?
| What exactly is meant when we hear up to 25% of Covid-19 carriers could be asymptomatic? Posted: 01 Apr 2020 07:44 AM PDT Does this mean that a quarter of people who get it could very well never know they ever had it? Or does it mean that a quarter of people who get it could carry it for some portion of time before they themselves start showing symptoms? [link] [comments]  |
| What does catnip actually do to cats? Posted: 31 Mar 2020 12:41 PM PDT Also where does it fall with human reactions to drugs (which is it most like)? [link] [comments]  |
| Posted: 01 Apr 2020 09:49 AM PDT |
| Are birds beaks attached to their skull? If so, How are they pigmented so much? Posted: 01 Apr 2020 06:01 AM PDT |
| Dues to their close generic relationship, are apes susceptible to the Corona Virus? Posted: 01 Apr 2020 08:10 AM PDT |
| How does a vaccine against pneumonia work? Posted: 01 Apr 2020 07:19 AM PDT |
| Posted: 01 Apr 2020 05:13 AM PDT Based on some reading I did a long time ago but cannot for the life of me find, my understanding is that the popular conception of dopamine and associated neural pathways may be inaccurate. The paper I read suggested that dopamine and the reward pathway are implicated in compulsiveness, craving, and general addictive qualities associated with many abused drugs, but might in fact be separate or only loosely related to the mechanism that produces subjective euphoria in the user. The example given was the finding that despite elevated dopamine activity in patients with schizophrenia, the increased synaptic concentrations are not associated with feelings of well-being or euphoria - instead, the writers hypothesized that the efflux of dopamine in these cases instead precipitates sudden feelings of 'importance' in patients, a possible causative factor in development of delusional beliefs. Does this mean that a schizophrenic patient looking at a group of birds in a tree might experience an uncontrolled release of dopamine, creating a powerful sense of importance/urgency? Might the brain then attempt to backfill an explanation for such a feeling, leading to the emergence of the unusual hypotheses typical of delusions (i.e. birds used for gov't surveillance)? I can see how reward pathway irregularities might lead to a progressive worsening of psychotic symptoms, as the mistaken beliefs described above might be repeatedly reinforced due to the action and involvement of dopamine. I would love to hear the contemporary view on the above, as well as any feedback on the notion of subjective euphoria as separate from reinforcement. I would cite the regular, dopamine-mediated reinforcement that we are subject to each day as a counterpoint to the notion of identical mechanisms behind both euphoria and sub-perceptual reinforcement - it appears behaviors can be reinforced without noticeable alterations in mood or cognition. We certainly are not hit with waves of euphoria when we eat or hydrate. [link] [comments]  |
| Why is the Ohio River considered a tributary to the Mississippi River and not the other way around? Posted: 01 Apr 2020 10:05 AM PDT If a tributary is a river that flows into a larger one shouldn't the Ohio river be considered the main river/source? [link] [comments]  |
| Ask Anything Wednesday - Physics, Astronomy, Earth and Planetary Science Posted: 01 Apr 2020 08:15 AM PDT Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Physics, Astronomy, Earth and Planetary 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! [link] [comments]  |
| How come viruses live longer on hard surfaces? Posted: 01 Apr 2020 07:20 AM PDT We all know covid 19 lives longer on hard surfaces than soft. Nobody can tell me why. Does the soft surface suck out moisture it needs to live? [link] [comments]  |
| Do plants get climate shock when being moved to the other hemisphere? Posted: 31 Mar 2020 08:17 PM PDT Like say a full grown tree from the north hemisphere is moved to the south hemisphere during January. [link] [comments]  |
| Posted: 01 Apr 2020 08:24 AM PDT I'm not asking "is it more dangerous" I'm not an idiot, everyone knows and can identify that much. The question is why didn't the 2003 outbreak cause as much damage as this 2020 outbreak. Is the world more susceptible to the disease now then it was in 2003 for some reason? What mutations has SARS underwent to make it more deadly and viral? [link] [comments]  |
| Is human hearing phase sensitive? Posted: 01 Apr 2020 06:25 AM PDT I know that any given sound can be represented as a combination of many different sine waves with different amplitudes and phases (fourier transform). And I know that the cochlea does something vaguely akin to this, with localized responses at different frequencies. My question is this: Given two sounds with the same power spectrum, but different phases of some of their components, will a person be able to tell the difference? Also, are such stimuli even possible, or have I misunderstood how the amplitude / phase of a sound's components works? Lastly, would the answer to the first question differ depending on whether the stimulus included any components in the low frequency ranges where inner hair cells actually track the pressure waves, instead of just the amplitude envelope? [link] [comments]  |
| Can CoViD-19 act like Herpes or other viruses? Posted: 01 Apr 2020 09:50 AM PDT where you are never really cured and you have flare ups? like it comes and goes and when you have a flare up, you are more likely to infect other people. Would humanity have to take drugs for life to prevent these potentially deadly flare-ups? [link] [comments]  |
| Are there viruses that affect specifically to only one species of animal (cats, dogs, etc)? Posted: 01 Apr 2020 09:20 AM PDT |
| Posted: 31 Mar 2020 01:34 PM PDT |
| Can chimps contract salmonella? Posted: 01 Apr 2020 12:02 AM PDT Just recently I viewed a video of a chimp sharing their apple with a tortoise. While the gesture was sweet, I couldn't help but wonder if our genetic ties to chimps made them susceptible to salmonella like us humans. Does an immune system vary even though genetically we might have similar DNA? (I.e. Mice or primates) [link] [comments]  |
| Is there an evolutionary reason we touch our faces so much? Posted: 31 Mar 2020 11:44 PM PDT As we all are becoming aware of just how much we touch our faces I can't help but wonder why humans do that so much. Did some ancient ancestor of mine gain a survival advantage by stroking his chin? [link] [comments]  |
| How does a CD really work? How do they store data? Posted: 31 Mar 2020 06:52 PM PDT I can get my head around USBs that have wiring and stuff, but I have no idea how a CD may work. Maybe it's just me growing up to think that to store data you need some computery stuff, but it´s still pretty awesome how something doesn't. Help me understand it? [link] [comments]  |
| If someone got a virus like Aids while pregnant, does the baby also get aids? If not why? Posted: 01 Apr 2020 06:46 AM PDT |
| How are the floaters I see in my eye in focus? Posted: 31 Mar 2020 11:11 PM PDT People have asked about floaters on here before, but what I'm wondering about is how I can see them so clearly. If I hold a book a few inches from my face the text is too close to focus on, but floaters are in my eye, yet appear to be fairly in focus. How can that be? [link] [comments]  |
| What is the Coma of a Comet exactly made up of? Posted: 01 Apr 2020 06:29 AM PDT |
| Posted: 31 Mar 2020 06:38 PM PDT |
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