A Ghanaian proverb says that the one who charts a path does not see when there is a deviation, but those observing can see ...

The first part of this series introduced the systems-theory concept of positive feedback as a powerful force in recovery—as it is in the rest of life. Once we’ve identified the basic dynamical ...

What can the systems theory distinction between positive and negative feedback tell us about how recovery succeeds?

A negative feedback loop is a type of self-regulating system. In the body, negative feedback loops regulate hormone levels, blood sugar, and more.

A downstream negative feedback directly regulates the LED brightness without changing the input." Tate sees the work as a key step in understanding how immune systems balance cost and control.

Summary Positive feedback can enhance response times in industrial control systems but needs to be carefully managed to avoid instability. Schmitt triggers employ positive feedback and are used to ...

As an acetyltransferase, ACAT2 forms a positive feedback loop with lactate and H3K18la, exacerbating lactate accumulation and tumour progression. Notably, the overexpression of ACAT2, driven by this ...

The study of homeostatic equilibrium is a key concern in several fields, from physiology and biology to medicine and biomedical engineering. Control theory approaches can provide effective strategies ...

How feedback loops regulate motion control systems Our subject here is closed-loop control, which relies on continuous feedback to adjust performance dynamically, in real-time while in-motion.

The feedback control consists of three main parts: (1) biomarker identification, (2) computation of a system output from the biomarker, and (3) a closed-loop controller that implements the system ...