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  2. Biochemical switches in the cell cycle - Wikipedia

    en.wikipedia.org/wiki/Biochemical_switches_in...

    The interaction between the two types of loops is evident in mitosis. While positive feedback initiates mitosis, a negative feedback loop promotes the inactivation of the cyclin-dependent kinases by the anaphase-promoting complex. This example clearly shows the combined effects that positive and negative feedback loops have on cell-cycle ...

  3. Transcription translation feedback loop - Wikipedia

    en.wikipedia.org/wiki/Transcription_translation...

    Secondary feedback loops interact with this primary feedback loop. CLOCKWORK ORANGE (CWO) binds the E-boxes to act as a direct competitor of CYC-CLK, therefore inhibiting transcription. PAR-DOMAIN PROTEIN 1 ε (PDP1ε) is a feedback activator and VRILLE (VRI) is a feedback inhibitor of the Clk promoter, and their expression is activated by dCLK ...

  4. Positive feedback - Wikipedia

    en.wikipedia.org/wiki/Positive_feedback

    A cytokine storm, or hypercytokinemia is a potentially fatal immune reaction consisting of a positive feedback loop between cytokines and immune cells, with highly elevated levels of various cytokines. [37] In normal immune function, positive feedback loops can be utilized to enhance the action of B lymphocytes.

  5. Cybernetics - Wikipedia

    en.wikipedia.org/wiki/Cybernetics

    Cybernetics is the transdisciplinary study of circular processes such as feedback systems where outputs are also inputs. It is concerned with general principles that are relevant across multiple contexts, [1] including in ecological, technological, economic, biological, cognitive and social systems and also in practical activities such as designing, [2] learning, and managing.

  6. Feedback - Wikipedia

    en.wikipedia.org/wiki/Feedback

    Electronic feedback loops are used to control the output of electronic devices, such as amplifiers. A feedback loop is created when all or some portion of the output is fed back to the input. A device is said to be operating open loop if no output feedback is being employed and closed loop if feedback is being used. [45]

  7. Gene regulatory network - Wikipedia

    en.wikipedia.org/wiki/Gene_regulatory_network

    The nodes can regulate themselves directly or indirectly, creating feedback loops, which form cyclic chains of dependencies in the topological network. The network structure is an abstraction of the system's molecular or chemical dynamics, describing the manifold ways in which one substance affects all the others to which it is connected.

  8. 'It's already begun': Feedback loops will make climate change ...

    www.aol.com/news/its-already-begun-feedback...

    A consequence of global warming, feedback loops are already making a huge problem that much worse. 'It's already begun': Feedback loops will make climate change even worse, scientists say [Video ...

  9. Oscillation (cell signaling) - Wikipedia

    en.wikipedia.org/wiki/Oscillation_(cell_signaling)

    Positive feedback loops, on their own or in combination with negative feedback are a common feature of oscillating biological systems. [2] Examples