Fissure filling is a treatment that improves the apparent clarity of a gemstone by removing air and replacing it with a substance that has a refractive index similar to the host material. Many different substances may be used to fill fissures: oils, resins, waxes, glass, and various polymers, to name a few.
Cerebral autoregulation is a process in mammals, which aims to maintain adequate and stable cerebral blood flow.hile most systems of the body show some degree of autoregulation, the brain is very sensitive to over-and underperfusion. Cerebral autoregulation plays an important role in maintaining an appropriate blood flow to that region.
The cerebral cortex is the most complex part of the brain and scientists were startled to find neuron formation in this high brain area.The cerebral cortex is responsible for higher level decision making and learning.The researchers found the formation of new nerve cells, a process called neurogenesis, in three areas of the cerebral cortex: 1  Prefrontal region which controls decision making.2  Inferior temporal region which plays a role in visual recognition.he cerebral cortex is responsible for higher level decision making and learning. The researchers found the formation of new nerve cells, a process called neurogenesis, in three areas of the cerebral cortex: 1  Prefrontal region which controls decision making.