It is a function of pore diameter and the size of the diffusing particles. Gallium attacks most other metals by diffusing into the metal lattice. Its relevant property is a uniform scattering or diffusing effect. A simple example is a system of dilute molecules diffusing in a homogeneous environment. Paracrine signaling uses molecules diffusing between two cells to communicate. Subscript AB denotes diffusivity of species A diffusing into species B. Fibrance works by shining a laser through a light diffusing fiber optic cable. BMP antagonists diffusing from the ectoderm generates a gradient of BMP activity. Rather, they occur as diffusing complexes within the membrane. Radiosity methods assume all surfaces are perfectly diffusing to reduce computational times. Polylysine was covalently bonded to chitosan in order to prevent it from diffusing away. Snow and ice are many orders of magnitude less efficient at diffusing heat than air. Communication is involved in creating, maintaining, and diffusing stigmas, and enacting stigmatization. BMPs act by diffusing from the cells that create them. Here the compression is fully based on diffusing action of the passages.