What is a positron emission tomography bin? What is the mass of a helium-4 nucleus? Cobalt-56 decays by emitting a positron. What is the product? What happens to the atomic number in positron decay? The mass of a proton is approximately ...
What happens at the end with heart failure? Heart failure worsens over time, so symptoms are most severe during the final stages. It causes fluid to build up in the body, which produces many of these symptoms: Shortness of breath (dyspnea). In the final stages of heart failure,people fee...
What happens when matter and antimatter meet? Why do particle accelerators produce antimatter? What are leptons made of? What is the mass of a neutrino? Where are positrons found? What are accelerators in nuclear physics? Which subatomic particle was discovered first?
Results from a study published in the November issue of the Journal of Nuclear Medicine show that powerful imaging techniques -- positron emission tomography fused with magnetic resonance imaging -- are helping researchers better understand the long-term functional and structural changes that take place...
Energy: Atoms absorb and lose energy. Generally, it's the electrons that absorb and lose energy. The energy absorbed by an electron in the first energy level making it jump up to the next energy level is 10.2 electron-volts (eV).
What happens when something's not right with your spine? Back Pain: How to Ease Sciatic Nerve Pain Use WebMD's slideshow to learn ways to get relief from sciatica, such as applying heat or cold, physical therapy, over-the-counter medicine, or an epidural injection. Back Pain Quiz There ...
What happens when quarks are split?Question:What happens when quarks are split?Splitting the Atom:When heavy atoms are split apart the energy that's released is greater than the energy required to split them which makes them a potential source of fission energy while light particles, like hydrog...
For many years, the focus of brain mapping was to examine changes in the brain that occur when people are attentively engaged in an activity. No one spent much time thinking about what happens to the brain when people are doing very little. ...
Leaking of the Dye:Whenever an injection is given into a vein, there is a risk of leakage of the contrast outside of the vein and beneath the skin. In case of leakage of large amount of contrast dye under the skin, there can be break down of the skin; however, this happens rarely....
Seizures.One type of seizure, a sudden burst of brain activity that people withepilepsyhave, affects specific muscles depending on where in the brain it happens. Another type can make people look awake but actually unaware of what's going on around them. They may also make strange noises, ga...