Nothing to see here, just an aid to memory:
Here's another little trick in CakePHP - it's quite often that someone will request a big old list of paginated data, along with filters on that data.
As much as MVC is great, sometimes there's that little requirement that forces you to go against the standard way of doing things.
There seem to be two conventions for binding energy, one treating it as the (negative) potential energy due to the nucleons being close together, the other treating it as the (positive) energy needed to separate the nucleons.