1 There are two ways to get involved in the GNEM-DMP: the patient-reported part, or online registry; and the physician-reported part, or natural history study.  Even if you are participating in another registry, natural history study or clinical trial, you can still participate in the GNEM-DMP.
New bonds will form between the two hydrogen atoms and the single oxygen atom in the water molecule that is formed as the product. For bonds to break, energy must be absorbed. When new bonds form, energy is released. The energy that is needed to break a bond is called the bond energy or bond dissociation energy.
Hydrogen fusion (nuclear fusion of four protons to form a helium-4 nucleus) is the dominant process that generates energy in the cores of main-sequence stars. It is also called hydrogen burning, which should not be confused with the chemical combustion of hydrogen in an oxidizing atmosphere.