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.
joule. (mechanics). The unit of energy or work in the meter-kilogram-second system of units, equal to the work done by a force of 1 newton magnitude when the point at which the force is applied is displaced 1 meter in the direction of the force.Symbolized J. Also known as newton-meter of energy.oule. a unit of energy and work in the International System of Units and the MKSA (meter-kilogram-second-ampere) system. It is equal to the work done by a force of 1 newton in moving a body 1 m in the direction of the force.