What percentage of people with major depressive disorder has suicidal thoughts? |
- What percentage of people with major depressive disorder has suicidal thoughts?
- When the end of a garden hose is oscillated, the water will make curves in the air. If a laser pointer oscillated fast enough and you had a camera quick enough, would the resulting image show the light behaving similar to the water?
- Phases of water ice
- How can a cell protect itself from foreign DNA ?
- How does light that is the combination of specific frequencies excite electrons that require quantized amounts of energy that do not correspond with those light frequencies?
- When mummified/preserved dinosaur or ancient animal remains are found, do they carry prehistoric or 'extinct' pathogens that could be a danger to modern humans?
- Why is the boiling point of a mixture in between that of the two constituents?
- When something is stuck in another thing, say a cork in a bottle. Why is it easier to twist and pull it out, than to just pull it straight out?
- How does earth compare to what we know about exoplanets in the circumsteller habitable zone?
- Does the chlorine used to disinfect drinking water in cities all over the country actually cause severe and chronic problems with our gut microbiome over time?
- What is happening inside an atom that doesn't make an electron lose its energy the way it would in a cyclotron?
- How exactly does air traffic control radars work? (Civilian systems only if there’s a difference between civilian and government)
- "If an astronaut floated away more or less at a right angle from the station's orbit, orbital dynamics dictate that he would float back toward the station in about an hour." How does this work?
- In microbiology, what is the criteria of classifying herbivores and carnivores?
- Does the refractive index of a transparent material change when it's electrostatically charged?
- What are the implications of the electromagnetic force and weak nuclear force, being unified into the electroweak force?
- With millions of people using antibacterial hand wash and the rinse being washed in to our waterways. What effect is it having on our natural environment and living organisms?
- How does the total quantity of plastic in the world compare to other, natural resources?
- Is there any difference between Kinyoun stain and Ziehl-Neelsen stain, besides heating?
- Why is radioactivity measured in half-lives?
- How do parrot fish, clown fish, and some species of frog change gender?
- Is there a correlation between one’s favourite colour and least favourite colour?
- Why is the Gastrocnemius muscle prone to spasms?
- Why the blue part of the flame is blue?
| What percentage of people with major depressive disorder has suicidal thoughts? Posted: 18 Oct 2019 04:16 AM PDT So I am curious as to what percentage of people who are diagnosed with major depressive disorder have suicidal thoughts. I have tried Google and can't find a straight answer for this. I hope this question is okay to ask on this sub. Edit: Since people have talked about their experiences with ideation I've tagged this post as NSFW. Edit: Since /r/askscience does not allow personal anecdotes and is based on answering scientific questions; in case anyone reading this needs it the following communities are targeted at discussing/asking for guidance on mental health and depression : /r/mentalhealth /r/depression /r/SuicideWatch /r/Anxiety /r/StopSelfHarm [link] [comments]  |
| Posted: 18 Oct 2019 05:36 PM PDT The velocity of an individual water molecule is the sum of its flow rate out of the hose and the translational velocity of the end of the hose. The velocity of the light from the laser cannot surpass C, but (assuming light as a particle?) will the direction of the protruding light follow the direction of the sum of the velocity of light and the translational velocity of the laser pointer? This is similar to the 'Turn your headlights on while driving near light-speed' question, but I think different because the velocity added is perpendicular rather than in the same direction. [link] [comments]  |
| Posted: 18 Oct 2019 11:12 AM PDT By "phases", I'm talking about things like Ice IV and Ice X, not the fact that the water is frozen. There are 18 known solid christalline phases of water (kinds of water ice). My questions here also pertain to amorphous ice and square ice.
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| How can a cell protect itself from foreign DNA ? Posted: 18 Oct 2019 10:59 AM PDT |
| Posted: 18 Oct 2019 01:35 PM PDT I can combine red, green, and blue light to get white light. That gives me three wavelengths, thus three energy levels. Let's say I shine this light on an object with many colors, thus many materials, thus many different energy levels electrons can be excited to. How do the photons of that white light become the specific frequencies required to excite those electrons when they were none of those frequencies to begin with? [link] [comments]  |
| Posted: 18 Oct 2019 03:46 AM PDT Was wondering if there's any health risk to archeologists, scientists, or even society at large when ancient remains are unearthed. Just saw this post and was wondering if that foot could contain any diseases/pathogens that humans have no immunity to, and which could cause some kind of epidemic. I know that smallpox was lethal amongst native Americans because they didn't have any immunity to it since they'd never encountered it, so I wonder if there could be a similar case with a never-seen-before pathogen from these prehistoric remains. Thanks [link] [comments]  |
| Why is the boiling point of a mixture in between that of the two constituents? Posted: 18 Oct 2019 12:29 PM PDT In other words, why doesn't the more volatile constituent boil off first, leaving the less volatile constituent in liquid form. I'd like to understand what is happening at a molecular level. [link] [comments]  |
| Posted: 18 Oct 2019 09:07 AM PDT |
| How does earth compare to what we know about exoplanets in the circumsteller habitable zone? Posted: 18 Oct 2019 12:43 AM PDT Been watching a bunch of Star Trek, and I started to wonder: If we take the traditional idea of oxygen-breathing aliens evolving on a planet with a day-night cycle and a temperature where liquid water is common on the surface, how does earth compare? Are earthlings from a heavy gravity planet? Or a light gravity planet? What about the color and intensity of sunlight? From what I've found while searching, red dwarfs would be unlikely to have an habitable zone planet that wasn't tidally locked, so that's out of the bounds of the question. K dwarfs look promising though, and are more common than G type stars, as well as a longer interstellar lifespan. If that is true, then the average hypothetical alien would be used to a more orangish "sunlight". Not sure how that would translate to the intensity of sunlight on the surface, of how the atmosphere would change the color of the starlight. Planetary mass is a harder question for me, as a layman to answer. Obviously our systems are biased towards finding heavier planets, but there's likely some statistical analysis that I'm not aware of, showing the likelyhood of smaller planets. Too small, and obviously the planet cannot hold onto an atmosphere. Not sure where the bound is though, nor the upper bound where the planet becomes too large to avoid being a gas giant. (Plate tectonics would be another factor, but the science seems unsettled if superearths would have active plate tectonics). So, thoughts? I know this is a little speculative, but I'm just wondering. [link] [comments]  |
| Posted: 18 Oct 2019 07:09 AM PDT When you google it, the first answer is: 'No studies have confirmed this is a problem, but you should take pro-biotics just in case.' 'No studies have confirmed it... yet, if you've ever had a betta fish and lived in the city where I live- the tap water kills the fish within 5 minutes (if you don't let it rest, or use drops).
What are the actual implications of this? With all of this recent research linking gut bacteria to our health and mental well-being? https://www.motherjones.com/environment/2014/08/case-against-chlorinated-tap-water/ [link] [comments]  |
| Posted: 18 Oct 2019 01:23 AM PDT I understand the fundamentals of QM, that the atom acts as a potential well and the energy states get quantised, hence electrons can have only certain wavefunctions. But what about this quantisation 'stabilizes' the electron so that it doesn't radiate energy, the way it would if it was accelerating in a cyclotron? [link] [comments]  |
| Posted: 18 Oct 2019 10:17 AM PDT Do planes need to be at a certain altitude to be tracked in the "blip". Do they need certain FAA requirements to be seen on radar, do they need specific speed, or mass? All of the above? [link] [comments]  |
| Posted: 18 Oct 2019 07:45 AM PDT |
| In microbiology, what is the criteria of classifying herbivores and carnivores? Posted: 18 Oct 2019 05:30 AM PDT In the macro world, a plant is a living being that uses photosynthesis for food with no mind or motor function so to say, right? And a herbivore is an animal that eats plants while a carnivore is an animal that eats other animals. In my mind, biologically speaking, carnivores and herbivores are very similar, while plants are very much different. Well, in the microscopic world, would a small single cell organism, such as an amoeba- eating plant material (single celled organism that use photosynthesis for food such as algae) be considered a herbivore or carnivore? I'm asking because I'm my mind comparing a lion to a horse is not the same as comparing a horse to hay. While comparing an amoeba to a diatom doesn't seem to make as much of a difference as a horse to hay. I hope my question make sense... I came across this question while watching a tardigrade video where I inferred that some tardigrades are herbivores while others are omnivore/carnivore. So the question popped in my mind; at that scale, does it really count/matter? [link] [comments]  |
| Does the refractive index of a transparent material change when it's electrostatically charged? Posted: 17 Oct 2019 11:42 PM PDT I'm talking about the refractive index for light in the visible spectrum, i.e. non-ionizing radiation. Would the charge affect the refractive index of the material? [link] [comments]  |
| Posted: 18 Oct 2019 11:36 AM PDT |
| Posted: 18 Oct 2019 01:54 AM PDT |
| How does the total quantity of plastic in the world compare to other, natural resources? Posted: 18 Oct 2019 05:35 AM PDT |
| Is there any difference between Kinyoun stain and Ziehl-Neelsen stain, besides heating? Posted: 18 Oct 2019 05:25 AM PDT |
| Why is radioactivity measured in half-lives? Posted: 17 Oct 2019 04:41 PM PDT |
| How do parrot fish, clown fish, and some species of frog change gender? Posted: 17 Oct 2019 07:58 PM PDT |
| Is there a correlation between one’s favourite colour and least favourite colour? Posted: 17 Oct 2019 05:36 PM PDT |
| Why is the Gastrocnemius muscle prone to spasms? Posted: 17 Oct 2019 11:44 PM PDT |
| Why the blue part of the flame is blue? Posted: 17 Oct 2019 04:06 PM PDT Dumb question i know but curiosity got the best from me [link] [comments]  |
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