Help within genetically related and unrelated organisms as well as investments of investors holding shares to different degree including charity can be understood within the ensemble concept. In an ensemble transfer of substrate from a source to a sink may result in superadditivity as well as...

Petrochemicals play a vital role in the economy. The products of the industry are the building blocks in many industries including polymers, synthetic rubber, synthetic fibres, fibre intermediates and basic chemicals. The industry uses a variety of hydrocarbon feedstock such as different cuts of...