Dura mater. Dura mater, or dura, is a thin membrane that is the outermost of the three layers of the meninges that surround the brain and spinal cord. It is derived from mesoderm. The other two meningeal layers are the pia mater and the arachnoid mater.ura mater. Dura mater, or dura, is a thin membrane that is the outermost of the three layers of the meninges that surround the brain and spinal cord. It is derived from mesoderm. The other two meningeal layers are the pia mater and the arachnoid mater.
The story with the most credibility is the one that, the PiÃ±a Colada was introduced on August 15, 1954 at the Caribe Hiltonâs Beachcomber Bar in San Juan, Puerto Rico by its alleged creator, Ramon âMonchitoâ Marrero.
There are many recipes of how to make a piÃ±a colada but the one that his friends tell in the book of JosÃ© L. DÃ­az De Villegas to be the original recipe created by Monchito , is the following : Pour 3 ounces of coconut cream , 6 ounces of pineapple juice and 1Â½ ounces of white rum into a blender or shaker with crushed ice n cream the milk , shake ...