To create characterization in fiction or non-fiction, 1  Tell the reader directly what a character's personality is like: 2  Describe a character's appearance and manner: 3  Portray a character's thoughts and motivations:  Use dialogue to allow a character's words to reveal something important about his or her nature:
Cherniak (2010b) reviews diffusion in the accessory minerals zircon, monazite, apatite, and xenotime, phases important in geochronologic studies. Diffusion in other minerals, including carbonates, sulfide minerals, fluorite and diamond, is reviewed by Cherniak (2010c).
Diffusion is an important process in human physiology. Specifically, diffusion is the mechanism of movement of oxygen, nutrients and other molecules across the capillary walls and the movement of other molecules across membranes. The amount of material crossing a surface per unit of time is called flux and depends upon the difference in concentrations between two compartments where movement is potentially going to occur.