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 ].
Porosity. From SubSurfWiki. Porosity is a measure of the volume of void space in a rock as a fraction of the total volume of the rock. In geology, this void space is always filled with a fluid such as water or hydrocarbon.orosity is a measure of the volume of void space in a rock as a fraction of the total volume of the rock.