The cognitive approach began to revolutionize psychology in the late 1950âs and early 1960âs, to become the dominant approach (i.e. perspective) in psychology by the late 1970s. Interest in mental processes had been gradually restored through the work of Piaget and Tolman.
poâ¢rosâ¢iâ¢ty. 1. the state or quality of being porous. 2. (in rock or other natural material) the ratio of aggregated pore space to the volume of the entire mass: used as a measure of the amount of fluid, as oil, that a geologic stratum might hold. [1350â1400; Middle English porosytee porÅsitÄs. See porous, -ity ].
Hair Porosity and Your Natural Hair Regimen. Porosity is a term used to describe the hair's ability to absorb moisture. The higher the porosity, the more the hair absorbs. Hair can be described as having low, normal or high porosity. In each of these types of porosities, the cuticle, or the outer layer of the hair, is a bit different. In hair with low porosity, the cuticles are compact; they lie flat. Hair with low porosity typically does not absorb moisture very readily.