Modifies a noun

• rhythmicity: Thus, not all peripheral tissues are equal in circadian rhythmicity.

• rhythm: Savage have their own crazy circadian rhythm, a cosmic loop.

• pacemaker: The final section was the analysis of a new periodically forced model, that of the human circadian pacemaker.

• oscillator: However, circadian oscillators have recently been discovered in many peripheral tissues.

• clock: Mammals In mammals almost all tissues have their own circadian clock, each with its own output genes.

• oscillation: Our recent unpublished advances include: Imaging circadian oscillations of cytosolic free calcium.