positive feedback synonyms

[3][4][5] Positive feedback is a process in which the effects of a small disturbance on a system can include an increase in the magnitude of the perturbation. [29] This happens because noise can become amplified by positive feedback. Delivered to your inbox! Boggle. By reducing the extent of the positive feedback, the hysteresis-width can be reduced, but it can not entirely be eradicated. Vandervert, L. (2009b). 2. It is suggested that this positive feedback system will end sometime with a catastrophe, as modern agriculture is using up all of the easily available phosphate and is resorting to highly-efficient monocultures which are more susceptible to systemic risk. [42] It is proposed that the growth rate is accelerating because of second-order positive feedback between population and technology. If the functions A and B are linear and AB is smaller than unity, then the overall system gain from the input to output is finite, but can be very large as AB approaches unity. Noun Phrase Such a bistable circuit is the basis of one bit of electronic memory. Keesing, R.M. [2], Such systems can give rich qualitative behaviors, but whether the feedback is positive or negative in sign is an extremely important influence on the results. Find out more, Alarm or panic can spread by positive feedback among a herd of animals to cause a, A basic feedback system can be represented by this block diagram. However if the input goes past the limit,[clarification needed] then the feedback will change sign[dubious discuss] and the output will move in the opposite direction until it hits the opposite limit. In L.V. In some situations, the words sure and positive are roughly equivalent. Examples of positive feedback subsystems in climatology include: A self-fulfilling prophecy is a social positive feedback loop between beliefs and behavior: if enough people believe that something is true, their behavior can make it true, and observations of their behavior may in turn increase belief. [38][39] Vandervert also argued that this working memory/cerebellar positive feedback loop was responsible for language evolution in working memory. ['pztv'] involving advantage or good. [35], 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.[36]. 2. There are several designs for such harmonic oscillators, including the Armstrong oscillator, Hartley oscillator, Colpitts oscillator, and the Wien bridge oscillator. Lettris Microphones are not the only transducers subject to this effect. Find 87 ways to say POSITIVE, along with antonyms, related words, and example sentences at Thesaurus.com, the world's most trusted free thesaurus. By the use of tuned circuits or a piezoelectric crystal (commonly quartz), the signal that is amplified by the positive feedback remains linear and sinusoidal. Tips: browse the semantic fields (see From ideas to words) in two languages to learn more. (1945). (Entry 2 of 2). Positive feedback is used in digital electronics to force voltages away from intermediate voltages into '0' and '1' states. Positive feedback synonyms What is another word for Positive feedback? noun. Di, Cookies help us deliver our services. "On the reasons of hyperbolic growth in the biological and human world systems" Institute of Water Problems, Russian Academy of Sciences, Gubkina 3, Moscow 119991, Russia, March 2010. an offensive content(racist, pornographic, injurious, etc. Once it reaches the limit, it will be stable. The Schmitt trigger is, to some extent, a latching circuit. The radio operator has to be prepared to tweak the amount of feedback fairly continuously for good reception. Some common synonyms of positive are certain, cocksure, and sure. "High Frequency Amplifiers" Bell System Technical Journal 3 (April 1924):181-205. [6] In contrast, a system that has negative gain around the loop has negative feedback.[1][2]. ['fidbk'] the process in which part of the output of a system is returned to its input in order to regulate its further output. Volume 69, 2008. [30], Positive feedback loops have been used to describe aspects of the dynamics of change in biological evolution. Dolgonosov. This is the basis for many social phenomena, including Ponzi schemes and chain letters. The effects are usually catastrophic for the device in question. favourable response. If a PA system's microphone picks up sounds from its own loudspeakers, and these sounds are re-amplified enough, the effect of this feedback can be loud squealing or howling noises from the loudspeakers. Negative feedback effects within the same system can also modulate the effect of positive feedback so that it may add to the responsiveness of the system but does not necessarily lead to a runaway process. Positive feedback plays an integral role in cellular differentiation, development, and cancer progression, and therefore, positive feedback in gene regulation can have significant physiological consequences. Positive feedback occurs when a gene activates itself directly or indirectly via a double negative feedback loop. Noun Phrase Even if you feel angry, support your teen as she reports on her findings and offer positive feedback. Electronics circuits and devices second edition. They all use positive feedback to create oscillations. Due to the controlled use of positive feedback, sufficient amplification can be derived from a single, The effect of using a Schmitt trigger (B) instead of a comparator (A), Illustration of an R-S ('reset-set') flip-flop made from two digital, A phonograph turntable is prone to acoustic feedback, Positive feedback is a mechanism by which an output is enhanced, such as protein levels. police are certain about the cause of the fire. noun. Another sociological example of positive feedback is the network effect. Synonyms quality unsupportive destructive perverse counter antagonistic Rhymes with Negative Feedback biofeedback Sentences with negative-feedback 1. You can also try the grid of 16 letters. ['pztv'] impossible to deny or disprove. W. Brian Arthur, 1990)[40]. Lactation stops when the baby no longer nurses. Log in. ], (precede), (press showing; preview), (past; past times; yesteryear; ancient times; antiquity), (predecessor; forerunner)[termes lis], action, activity, natural action, natural process - Cybernetics - add to, augment, boost, broaden, enlarge, expand, heighten, increase, raise, turn up, up, widen[Hyper. If the loop gain (the product of the amplifier gain and the extent of the positive feedback) at any frequency is greater than one, then the amplifier will oscillate at that frequency (Barkhausen stability criterion). Engineered gene circuits. ['fidbk'] response to an inquiry or experiment. Chemicals break down the blood clot. The flip-flop uses a pair of amplifiers, transistors, or logic gates connected to each other so that positive feedback maintains the state of the circuit in one of two unbalanced stable states after the input signal has been removed, until a suitable alternative signal is applied to change the state. Positive feedback in chemical reactions can increase the rate of reactions, and in some cases can lead to explosions. [13] Therefore a signal can be amplified 20,000 or even 100,000 times in one stage, that would normally have a gain of only 20 to 50. View all. In the real world, positive feedback loops typically do not cause ever-increasing growth, but are modified by limiting effects of some sort. Random motions in molecular dynamics coupled with positive feedback can trigger interesting effects, such as create population of phenotypically different cells from the same parent cell. Best synonyms for 'positive feedback' are 'positive response', 'positive reaction' and 'positive reply'. good feedback. adjective. Therefore well-designed complex systems generally have built-in features to avoid this condition, such as a small amount of friction, or resistance, or inertia, or time delay to decouple the outputs from the inputs within the system. B.M. The hyperbolic character of biodiversity growth can be similarly accounted for by a positive feedback between the diversity and community structure complexity. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. Accessed 4 Nov. 2022. [16], An electronic flip-flop or "latch" or "bistable multivibrator" is a circuit that due to high positive feedback is not stable in a balanced or intermediate state. Thus depending on the feedback, state changes can be convergent, or divergent. A Ponzi scheme is a good example of a positive-feedback system, because its output (profit) is fed back to the input (new investors), causing rapid growth toward collapse. To make squares disappear and save space for other squares you have to assemble English words (left, right, up, down) from the falling squares. Company Information ], feed back, resubmit - positive feedback, positive feed-back, regeneration[Driv], Knowledge of Results, Knowledge of Results (Psychology)[Analogie], Positive feedback (or regenerative feedback) occurs in a feedback loop when the mathematical sign of the net gain around the feedback loop (sometimes called the loop gain) is positive. ['fidbk'] response to an inquiry or experiment. p.149. [31] At the human level, Richard Alexander (1989) proposed that social competition between and within human groups fed back to the selection of intelligence thus constantly producing more and more refined human intelligence. | One of the corollaries of the Schmitt trigger's use of positive feedback is that, should the input voltage move gently down again past the same threshold, the positive feedback will hold the output in the same state with no change. Welcome to English-Thesaurus Collins dictionary ("Collins Cobuild English Dictionary for Advanced Learners 4th edition published in 2003 HarperCollins Publishers 1987, 1995, 2001, 2003 and Collins A-Z Thesaurus 1st edition first published in 1995 HarperCollins Publishers 1995"). Contact Us (2004) Vicious circles: positive feedback in major evolutionary and ecological transitions. Thesaurus / feedback FEEDBACK feedback See definition of feedback on Dictionary.com noun response synonyms for feedback Compare Synonyms assessment comment criticism evaluation observation reaction answer comeback rebuttal reply retaliation sentiment antonyms for feedback MOST RELEVANT question Noun A reactionary response to a product, service, or task A high-pitched noise created when there is a loop between a microphone and a speaker A verbal or written answer more Noun A reactionary response to a product, service, or task response evaluation input opinion reaction advice assessment comment commentary criticism critique This entry is from Wikipedia, the leading user-contributed encyclopedia. Negative feedback is the opposite as it focuses on what they did wrong or need to improve. A simple feedback loop is shown in the diagram. Evolution of the human psyche. On the other hand, thermal runaway is a positive feedback that can destroy semiconductor junctions. The terms "positive/negative" were first applied to feedback prior to WWII. Get XML access to fix the meaning of your metadata. Similar words for Positive feedback. ['pztv'] of or relating to positivism. While providing feedback is commonly a manager's job, people at all levels in the workplace should try to recognise the good things their colleagues do. ['pztv'] formally laid down or imposed. Synonyms plus 3. feedback noun. [15], Digital electronic circuits are sometimes designed to benefit from positive feedback. When the loop gain is positive and above 1, there will typically be exponential growth of any oscillations or divergences from equilibrium. In P. Millar & C. Stringer (Eds. English thesaurus is mainly derived from The Integral Dictionary (TID). ['pztv'] a film showing a photographic image whose tones correspond to those of the original subject. It may not have been reviewed by professional editors (see full disclaimer). Genetic engineers have constructed and tested simple positive feedback networks in bacteria to demonstrate the concept of bistability. 'Positive', 'Cheat', and 7 Other Words Positive. Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/positive. When you provide positive feedback, you are telling your team members what they're doing correctly and should continue to do. What's the definition of Positive feedback in thesaurus? 224-230. Vandervert, L. (2009a). Positive feedback may be controlled by signals in the system being filtered, damped or limited, or it can be cancelled or reduced by adding negative feedback. 53, pp. Working memory, the cognitive functions of the cerebellum and the child prodigy. adjective. Similarly, if a video camera is pointed at a monitor screen that is displaying the camera's own signal, then weird repeating patterns can be formed on the screen by positive feedback. Crespi B. J. See if you can get into the grid Hall of Fame ! Cultural anthropology: A contemporary perspective (2nd ed.) The law of evolution as a maximal principle. Regenerative circuits were invented and patented in 1914[12] for the amplification and reception of very weak radio signals. The Netherlands: Springer Science. regeneration plaudit applause approval appreciation recognition praise acclaim acclamation ovation approbation cheer compliment kudo feedback Filters Most terms are nouns Suggest 'All Intensive Purposes' or 'All Intents and Purposes'. Synonyms answer response 4. feedback noun. Human Biology, 17, 168-194. Lettris is a curious tetris-clone game where all the bricks have the same square shape but different content. 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