World Hepatitis Day, observed July 28, aims to raise global awareness of hepatitis B and hepatitis C and encourage prevention, diagnosis, and treatment. It has been led by the World Hepatitis Alliance since 2007 and in May 2010, it received global endorsement from the World Health Organization.
Medical Definition of joule. : a unit of work or energy equal to the work done by a force of one newton acting through a distance of one meter.
For instance, in SI units, energy is measured in joules, and one joule is defined mechanically, being the energy transferred to an object by the mechanical work of moving it a distance of 1 metre against a force of 1 newton.