Neuroscientists have observed for the first time how structures deep in the brain are activated when the brain becomes aware of its own thoughts, known as conscious perception 1. The brain is ...

THERE has been considerable discussion during the past thirty years or so about the shape and in particular about the planarity of the fluorene molecule. If the molecule is not flat, then there is ...

Chemical Engineering is concerned with the design and operation of processes which convert materials and energy into the higher value products we use every day. It understands the processes which ...