The meninges are three layers of protective tissue called the dura mater, arachnoid mater, and pia mater that surround the neuraxis. The meninges of the brain and spinal cord are continuous, being linked through the magnum foramen. Dura Mater.
Developmental psychology, also referred to as human development, is the scientific and methodical study of systematic psychological changes that take place in human beings over the course of their life span. At first, the study of developmental psychology was only concerned with infants and children. But today, the field has grown to comprise of adolescence, adult development, aging, and the entire life span of an individual.
Research and development, also known in Europe as research and technological development, refers to innovative activities undertaken by corporations or governments in developing new services or products, or improving existing services or products. Research and development constitutes the first stage of development of a potential new service or product. R&D activities differ from institution to institution, with two primary models of an R&D department either staffed by engineers and tasked with d