Parkinsonâs Disease (PD) is a chronic, progressive disorder that affects nerve cells deep in the brain responsible for planning and controlling body movement. Dopamine is a chemical used in body movement.
Chart.js is a JavaScript library that allows you to draw different types of charts by using the HTML5 canvas element. Since it uses canvas, you have to include a polyfill to support older browsers. The one suggested by the author is ExplorerCanvas, so you may want to stick with it.
JNDI and JMS are completly two differents things and I'm sure there are dosen of pages outthere which explain in details theire nature. JMS is a standard Java API to develop message based communication between hetrerognous systems using message (could be a plain string or Java object). Two features characterize JMS: Reliablity of delivering the messages between endpoints.