Are the Aspen in New Mexico and the Aspen in Colorado the same? |
- Are the Aspen in New Mexico and the Aspen in Colorado the same?
- In Transfusion science, why do some blood group systems produce predominantly IgM antibodies while others produce IgG?
- Do other animal species raise young at different ages like humans do?
- Do all animals produce endorphons and dopamine and if so what about insects and bacteria?
- Ommatidium in insects are 10 micrometers in width in certain species but also 30 micrometers or more in others. What benefits do larger ommatidium bring?
- Is photosynthesis in plants affected by electric/magnetic fields?
- where do B lymphocytes get their antigen receptors?
- Why are some drugs’ MOA ‘unknown’ or ‘uncertain’?
- What is the incubation period for the omicron ba.2 variant?
- Why does adding milk allow cheese and butter to mix?
- Why do physical objects squeak or produce sounds when rubbing against each other? Is it friction or something with the molecules?
- What tests could a hospital use to determine the presence of absence of Kleinfelter Syndrome and related conditions?
- How does tar from smoking get out of your lungs?
- How can nuclear reactors control the exponential cascade of neutrons fast enough to prevent an explosion?
| Are the Aspen in New Mexico and the Aspen in Colorado the same? Posted: 07 Apr 2022 08:41 AM PDT |
| Posted: 07 Apr 2022 08:17 AM PDT So the likes of ABO and M/N produce IgM, while Duffy, Rh and Kidd produce IgG. What determines what isotype is produced by each group? [link] [comments] |
| Do other animal species raise young at different ages like humans do? Posted: 06 Apr 2022 11:54 PM PDT I know it is very common for animals to have litters or many offspring at once and us humans have kids one at a time. So we could have a preteen and a toddler, which are at very different stages of development. I was curious if any other species also raise their offspring at different stages of development? [link] [comments] |
| Do all animals produce endorphons and dopamine and if so what about insects and bacteria? Posted: 06 Apr 2022 04:30 PM PDT I was wondering why would a living organism keep living if it cant feel pleasure? [link] [comments] |
| Posted: 07 Apr 2022 06:03 AM PDT |
| Is photosynthesis in plants affected by electric/magnetic fields? Posted: 07 Apr 2022 04:17 AM PDT Photosynthesis involves the movement of many charges including H+ ions (protons) and electrons which can be easily influenced by electric and magnetic fields. Their pathways are often manipulated by the cell to produce ATP from ADP, reduce NAD+ to NADHH+, etc. If a plant is placed in the presence of such a field, what is the effect on it's photosynthetic process, if any? If there isn't any effect, why? [link] [comments] |
| where do B lymphocytes get their antigen receptors? Posted: 06 Apr 2022 08:10 PM PDT I'm a pre-PA student. As I understand it B lymphocytes develop with their antigen receptors, and when they encounter their antigen they become activated. How are they born with the right receptors? How can your body predict what antigens it will encounter? [link] [comments] |
| Why are some drugs’ MOA ‘unknown’ or ‘uncertain’? Posted: 07 Apr 2022 01:04 AM PDT if target identification and validation are done prior to or simultaneously with API or lead identification, shouldn't the MOA be certain? or is it being unknown only for indications the drug wasn't designed for in the first place and was just discovered eventually (thru trials/PMS)? [link] [comments] |
| What is the incubation period for the omicron ba.2 variant? Posted: 07 Apr 2022 03:56 AM PDT |
| Why does adding milk allow cheese and butter to mix? Posted: 07 Apr 2022 01:39 AM PDT If i try and make a sauce using butter and cheese it won't really mix and will just settle back into little clumps of cheese in butter eventually, but adding just a tiny amount of milk allows the cheese and butter to actually mix. Have noticed this with other oily type things and sauces too. [link] [comments] |
| Posted: 06 Apr 2022 12:20 PM PDT |
| Posted: 06 Apr 2022 04:11 PM PDT Edit: The title should be "presence OR absence," not "presence OF absence." Suppose a hospital receives a human patient with severe injuries around the waist level, a missing pelvis, and missing legs. Genital examination is impossible. There is a dispute about whether the chromosomes of this patient are XY, XXY, XYY, or some other configuration. What tests would the hospital require to resolve the question? Would blood samples be the most convenient tissue sample, or would some other tissue sample be more convenient? [link] [comments] |
| How does tar from smoking get out of your lungs? Posted: 05 Apr 2022 04:52 PM PDT I've quit smoking. For the first while, my nose was runny for like a month. I think that was because my cilia came back to life. However, now…usually once a day…usually in the morning, I seem to be blowing my nose and black/brownish phlegm comes out. Is that tar? I thought it would come up from coughing. [link] [comments] |
| Posted: 06 Apr 2022 04:15 AM PDT The Wiki article on nuclear reactor physics states that
These are called prompt neutrons. It also states that
This still seems to imply that a very fast control loop is needed since not acting on a criticality increase within a few seconds still leads to an exponential increase, after about 100 seconds it would again be a factor of 10000. So how fast does the feedback have to be and how is it applied? Only through the control rods, moving a few millimeters? How is it even possible to measure the state of the core so quickly? How much does the reactor's power vary around the steady state, where one neutron causes exactly one other neutron to be absorbed? Does it look like a cycle? Does the output power vary by a magnitude or less? [link] [comments] |
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