Search results
Results From The WOW.Com Content Network
It is an example of positive feedback in biology. The Ferguson reflex occurs in mammals. Mechanism. Upon application of pressure to the internal end of the ...
An example that reveals the interaction of the multiple negative and positive feedback loops is the activation of cyclin-dependent protein kinases, or Cdks14. Positive feedback loops play a role by switching cells from low to high Cdk-activity. The interaction between the two types of loops is evident in mitosis.
An additional positive feedback loop is created by Swi4, a component of SBF that is itself a target of SBF. Together, this sudden activation of the G1 cyclin positive feedback loop defines the Start point that is key to making the G1/S transition distinct and abrupt. Once the CDK activity threshold is passed and feedback is activated ...
Audio feedback (also known as acoustic feedback, simply as feedback, or the Larsen effect) is a special kind of positive feedback which occurs when a sound loop exists between an audio input (for example, a microphone or guitar pickup) and an audio output (for example, a loudly-amplified loudspeaker).
The Hodgkin cycle represents a positive feedback loop in which an initial membrane depolarization leads to uncontrolled deflection of the membrane potential to near V Na. The initial depolarization must reach or surpass a certain threshold in order to activate voltage-gated Na + channels .
In unicellular organisms such as bacteria, signaling can be used to 'activate' peers from a dormant state, enhance virulence, defend against bacteriophages, etc. [46] In quorum sensing, which is also found in social insects, the multiplicity of individual signals has the potentiality to create a positive feedback loop, generating coordinated ...
Within molecular and cell biology, temporal feedback, also referred to as interlinked or interlocked feedback, is a biological regulatory motif in which fast and slow positive feedback loops are interlinked to create "all or none" switches. This interlinking produces separate, adjustable activation and de-activation times.
inhibition of run-away reactions when coupled with a positive feedback loop; creating an oscillator by taking advantage in the time delay of transcription and translation, given that the mRNA and protein half-life is shorter; positive feedback: the gene product upregulates its own production directly or indirectly, which can result in