Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Snapshots of IBM GC B cell simulation. All B cells were started in the lower zone (DZ) and undergo spontaneous periodic motion between DZ and LZ as predicted by the phenomenological model. Chemokine concentrations in the DZ and LZ are volume-rendered, and the cell color shows density of CXCR4 receptors as indicated by the color bar (Color figure online)
