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This negative feedback leads to an oscillatory behavior, which is observed experimentally. Classical mathematical model of this system consists of two ordinary differential equations with discrete time delay in the term reflecting transcription. However, transcription takes place in the nucleus while translation occurs in the cytoplasm. This means that the delay present in the system is larger than transcription time.

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Sparks shot out from my core inside, and my body lifted up, hovering in the air for a second before flopping back to the couch. He did it again with the same effect.

And then I felt him lean forward. I managed to part my eyelids enough to see him grab something out of the black box.

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I clenched my teeth and hissed through my inhales and exhales when he rained down his palm on my left ass cheek this time. "Fuck!" My whole body went rigid. "Holly. Shit.

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You were a rebound fuck, Dirk. If you hadn't walked by, it would have been someone else.

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