Negative feedback is not the only type of feedback control that exists. The human body also uses positive feedback loops. In positive feedback, the signal continues to be amplified. The relationship between the signal and the response to the signal is direct, meaning that both the signal and...
A new study reveals a positive feedback loop between asymmetric distribution of the hormone auxin and the cell wall pectin conformations underpinning cell elongation and tissue bending.doi:10.1016/j.cub.2021.01.031Kris VissenbergCurrent Biology
15.BiologyIndicating or characterized by response or motion toward the source of a stimulus, such as light:positive tropism. 16.Having the areas of light and dark in their original and normal relationship, as in a photographic print made from a negative. ...
The term "plus" can also imply a benefit or an addition in non-mathematical contexts, such as "a plus point" meaning an advantage. Conversely, "positive" is widely used to describe optimistic attitudes, affirmative answers ("a positive response"), or conditions ("positive feedback"), reflect...
Systems Biology Meets Single-Cell Physiology: Role of a Positive-Feedback Signal Transduction Network in Cerebellar Long-Term Synaptic Depression 来自 Springer 喜欢 0 阅读量: 28 作者:K Tanaka,GJ Augustine 摘要: It is widely assumed that persistent changes in the brain, such as those occurring ...
Positive feedback loops are common regulatory elements in metabolic and protein signalling pathways. The length of such feedback loops determines stability and sensitivity to network perturbations. Here we provide a mathematical analysis of arbitrary length positive feedback loops with protein production an...
Cell signaling systems that contain positive-feedback loops or double-negative feedback loops can, in principle, convert graded inputs into switch-like, irreversible responses. Systems of this sort are termed ‘bistable’. Recently, several groups have engineered artificial bistable systems into Escheri...
A feedback mechanism accelerates or inhibits a process. The feedback mechanism among most of the hormones is a negative feedback loop. It occurs when the original effect of the stimulus is reduced by the output.
Every line became luminous with meaning. Every shadow was suffused with light shining from behind, suggesting some mighty achievement of knowledge; of knowledge growing more daring in proportion to the remoteness of the object known; of knowledge becoming more positive in its answers, as the ...
Mechanistically, IMPDH1 and YB-1 formed an autoregulatory positive feedback loop: IMPDH1 maintained YB-1 protein stabilization; YB-1 induced IMPDH1 expression by binding to the IMPDH1 promoter motif. Functionally, IMPDH1-assembled cytoophidia physically interacted with YB-1 and translocated YB-1 ...