Dental Clinic Comparison Chart: Capacity and Costs for Fixed Clinics, Mobile Clinics and Clinics Using Portable Equipment. * Fixed locations may include a free-standing facility, community health center, hospital, school or other location.
Diffusion is a process leading to equalization of substance concentrations in a system or establishing in a system an equilibrium concentration distribution that results from random migration of the system's elements. Three types of diffusion are distinguished, viz., molecular, Brownian, and turbulent.
Diffusion is a widespread and important process which occurs in both living and non-living systems. 1  Simple diffusion refers to diffusion of substances without the help of transport proteins.  Facilitated diffusion refers to diffusion of substances across a cell membrane with the help of transport proteins.