Between foam, liquid, or bar, what is the best type of soap for handwashing? |
- Between foam, liquid, or bar, what is the best type of soap for handwashing?
- Given that the tectonic plates are (slowly but constantly) moving, what does it mean when geologists/palaeontologists say something happened in (for example) the region of England hundreds of millions of years ago?
- AskScience AMA Series: We're UCSF neuroscientists who were featured in the NY Times for developing a neuroprosthesis that enabled a man with severe paralysis to communicate in full sentences simply by attempting to speak. AUA!
- What caused the New Madrid earthquakes located in the dead center of the North American tectonic plate, far away from any subduction zone or slip-strike faults?
- Does prolonged anaerobic respiration reduce immune function?
- Is north pole shift really gonna happen?
- Living organisms that “travel” for work?
- Do insects such as tabanidae types die after wildfire smoke inhalation?
- What happens to alcohol from hand sanitizer after it evaporates?
- Why is thermal expansion different between different solids?
- Do tectonic plates shifting affect the spin of the Earth?
- Can animals recognize body parts?
- What is the physiology behind some people being able to burp on command?
| Between foam, liquid, or bar, what is the best type of soap for handwashing? Posted: 19 Jul 2021 05:14 AM PDT |
| Posted: 18 Jul 2021 06:18 AM PDT |
| Posted: 19 Jul 2021 04:00 AM PDT Hi Reddit! We're a team of neuroscientists at the University of California, San Francisco (aka UCSF). We just published results from our work on technology that translates signals from the brain region that normally controls the muscles of the vocal tract directly into full words and sentences. To our knowledge, this is the first demonstration to show that intended messages can be decoded from speech-related brain activity in a person who is paralyzed and unable to speak naturally. This new paper is the culmination of more than a decade of research in the lab led by UCSF neurosurgeon Edward Chang, MD. Off the bat, we want to clarify one common misconception about our work: We are not able to "read minds" and this is not our goal! Our technology detects signals aimed at the muscles that make speech happen, meaning that we're capturing intentional attempts at outward speech, not general thoughts or the "inner voice". Our entire motivation is to help restore independence and the ability to speak to people who can't communicate using assistive methods. Our work differs from previous neuroprostheses in a critical way: Other studies have focused on restoring communication through spelling-based approaches, typing out letters one-by-one. Our team is translating signals intended to control muscles of the vocal system for speaking words, rather than signals to move the arm or hand to enable typing or control of a computer cursor. Also, we want to note that this is very early work conducted with a single person as a proof of concept. This study participant "Bravo-1", to whom we're extremely grateful, is a man in his late 30s who suffered a devastating brainstem stroke that severely damaged the connection between his brain and his vocal tract and limbs. Because he is unable to speak naturally or move his hands to type, to communicate he typically uses assistive technology controlled by minute and effortful head movements. To summarize the approach used in this study, we surgically implanted a high-density electrode array over his speech motor cortex (the part of the brain that normally controls the vocal tract). We then used machine learning to model complex patterns in his brain activity as he tried to say 50 common words. Afterwards, we used these models and a natural-language model to translate his brain activity into the words and sentences he attempted to say. Ultimately, we hope this type of neurotechnology can make communication faster and more natural for those who are otherwise unable to speak due to stroke, neurodegenerative disease (such as ALS), or traumatic brain injury. But we've got a lot of work to do before something like this is available to patients at large.
We're here to answer questions and, hopefully, to raise awareness of communication neuroprosthetics as a field of study and means of improving the lives of people around the world. Answering questions today are the co-lead authors of the new study:
We'll be on at 11:00am PDT (2 PM ET, 18 UT). Ask us anything! Username: /u/UCSF_official [link] [comments]  |
| Posted: 19 Jul 2021 12:18 AM PDT I've googled this thoroughly and can't find an answer that is complete and concise. Do we really just not know? [link] [comments]  |
| Does prolonged anaerobic respiration reduce immune function? Posted: 19 Jul 2021 05:41 AM PDT Hi all, My father is under the impression that prolonged anaerobic respiration (in the form of rigorous exercise - such as cardio in the gym) reduces the immune function of an induvidual as it puts their body in a prolonged 'fight or flight' mode in which fewer 'resources' are allocated to the immune system. He thinks that the lack of 'energy' allocated to the immune system and the increased levels of cortisol due to anaerobic exercise is the reason that people who have rigorous exercise routines and are physically very fit can suffer badly from COVID-19. I've tried to research this as it doesn't make any sense to me but have been unable to find anything linking the two together. If anyone could shed some light on this for me I'd appreciate it, thanks :) [link] [comments]  |
| Is north pole shift really gonna happen? Posted: 18 Jul 2021 12:43 AM PDT My mom's been real paranoid about it, and i was wondering if its true. [link] [comments]  |
| Living organisms that “travel” for work? Posted: 18 Jul 2021 02:22 AM PDT Most animals or living organisms seem to only move for either for feeding/flee from predators, or on a larger scale for environmental reasons seasonally. I was wondering which living organisms move for work purposes. For example, bees move from flower to flower to collect pollen. Or beavers to find wood to build their dam (please correct me if i'm wrong). Which other living organisms display similar behaviour, and why? [link] [comments]  |
| Do insects such as tabanidae types die after wildfire smoke inhalation? Posted: 17 Jul 2021 05:56 PM PDT So smoke is made up of tiny particles and toxic gases of course. Tabanidae insects such as horseflies and most insects breathe through tiny spiracles on their body. Theoretically the tiny particles would clog those spiracles up making them suffocate, correct? I ask this because recently my area was covered by wildfire smoke from a fire 200km away. The day of and before the horseflies we're insufferable, hundreds would swarm your car as you pulled in to a parking lot. Today after the blanket of smoke was gone, the flies were too! I was just wondering if someone could affirm my hypothesis or tell me why I am wrong. [link] [comments]  |
| What happens to alcohol from hand sanitizer after it evaporates? Posted: 17 Jul 2021 06:47 PM PDT I've been wondering what happens to the alcohol (isopropyl alcohol, ethanol, etc.) from things like hand sanitizer or different cleaners after it evaporates? Do these compounds break down due to instability over time, oxidize or react with other molecules? I appreciate any answers! [link] [comments]  |
| Why is thermal expansion different between different solids? Posted: 17 Jul 2021 06:44 PM PDT I was looking at a grill thermometer which uses a bimetallic strip to change shape. I understand that the expansion itself comes from heat and thus movement of the atoms being more spaced apart meaning more volume. Does the different expansions mean the atoms are naturally more spaced apart, or just more prone to movement (ie less inertia?), or am I way off the mark? [link] [comments]  |
| Do tectonic plates shifting affect the spin of the Earth? Posted: 17 Jul 2021 07:52 PM PDT I'm thinking of the 23 degree tilt and slight wobble. Has it always been that tilted or did it spin closer to 0 when Pangea was a thing (or earlier) and then started wobbling as a result of weight distribution being thrown off as the continents moved around? [link] [comments]  |
| Can animals recognize body parts? Posted: 17 Jul 2021 05:24 PM PDT For example, i can look at a dog and under normal circumstances can tell which part is its head, the legs or tail. Can all animals do this or only some animals? [link] [comments]  |
| What is the physiology behind some people being able to burp on command? Posted: 17 Jul 2021 08:03 PM PDT |
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