The production of autoinducers generally increases as bacterial cell densities increase.

The cultures are grown to saturation to obtain equal cell densities.

The study presented in this paper represents further investigation into the effect of cell density on gene expression.

Endothelial cell density also does not change with long-term contact lens wear.

Once a pattern is set, the brain tissue gradually resumes a normal cell density.

In spectrophotometry, cultures usually do not need to be diluted, although above a certain cell density the results lose reliability.

The enterochromaffin like cell density was determined in randomly selected fields.

Hence, starvation and a threshold of cell density are the two known prerequisites for the transition from growth to development.

Earlier aggregation was seen when cells were developed at both high and low cell densities.

Several recent papers identify genes that are up-regulated by cell density.