|Diffusion is movement of particles solids, liquids or gases from the high concentration to the level of low concentration. This usually results in attaining of equilibration. Diffusion is a passive type of transport which does not involve any usage of chemical energy. Concentration gradient plays an important role in the process of diffusion. Diffusion may be simple or facilitative or active transport.
A journal is a periodical publication intended to further progress of science, usually by reporting new research. Most journals are highly specialized, although some of the oldest journals publish articles, reviews, editorials, short communications, letters, and scientific papers across a wide range of scientific fields. Journals contain articles that peer reviewed, in an attempt to ensure that articles meet the journal's standards of quality, and scientific validity. Each such journal article becomes part of the permanent scientific record.