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Figure 4 | BMC Systems Biology

Figure 4

From: A reconfigurable NAND/NOR genetic logic gate

Figure 4

Continuous observations of circuit, with added noise. Change of Out and I2 over time while the four logic cases are not homogeneous due to noise in input signals (stochastic inputs). During the case 0-0 (until t ≈ 60) the logic value “0” varies within the range [0…0.05] nM; for the case 1-0 (until t ≈ 110) input A varies within the interval [4.5…5.5] (logic “1”) while input B still varies within the previous interval for a logic “0”; same variation ranges for “0” and “1” during cases 0-1 (until t ≈ 160) and 1-1 (until t ≈ 210); From there, again the case 0-0 but with another definition of logic “0”, varying within the range [0…0.005].

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