you're always so cocksure about everything. Cultural anthropology: A contemporary perspective (2nd ed.) Out of control, it can cause bridges to collapse. In electrical switches, including bimetallic strip based thermostats, the switch usually has hysteresis in the switching action. On the other hand, thermal runaway is a positive feedback that can destroy semiconductor junctions. The web service Alexandria is granted from Memodata for the Ebay search. 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. Human Biology, 17, 168-194. Winner, E. (1996). Company Information New York: Basic Books. W. Brian Arthur, 1990)[40]. Noun Phrase Even if you feel angry, support your teen as she reports on her findings and offer positive feedback. It may not have been reviewed by professional editors (see full disclaimer). 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. not capable of being challenged or proved wrong, 'Dunderhead' and Other Nicer Ways to Say Stupid, 'Pride': The Word That Went From Vice to Strength. Working memory, the cognitive functions of the cerebellum and the child prodigy. Vandervert (2009a, 2009b) proposed that the child prodigy can be explained in terms of a positive feedback loop between the output of thinking/performing in working memory, which then is fed to the cerebellum where it is streamlined, and then fed back to working memory thus steadily increasing the quantitative and qualitative output of working memory. By reducing the extent of the positive feedback, the hysteresis-width can be reduced, but it can not entirely be eradicated. 2. positive adjective. While all these words mean "having no doubt or uncertainty," positive intensifies sureness or certainty and may imply opinionated conviction or forceful expression of it. Noun Phrase Positive feedback occurs when a gene activates itself directly or indirectly via a double negative feedback loop. 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 Positive feedback tends to cause system instability. This may be due to changes in temperature, supply voltage, adjustment of front-panel controls, or even the proximity of a person or other conductive item. Microphones are not the only transducers subject to this effect. The effects are usually catastrophic for the device in question. Trends in Ecology and Evolution, 19, 627-633. Letters must be adjacent and longer words score better. adjective. Wildcard, crossword A number of examples of positive feedback systems may be found in physiology. [43](p146), Gunnar Myrdal described a vicious circle of increasing inequalities, and poverty, which is known as "circular cumulative causation".[44]. Vandervert, L. (2009b). A key feature of positive feedback is thus that small disturbances get bigger. C. define positive feedback. However, in order to avoid any fluctuation in the protein level, the mechanism is inhibited stochastically (I), therefore when the concentration of the activated protein (A) is past the threshold ([I]), the loop mechanism is activated and the concentration of A increases exponentially if d[A]=k [A], feedback in phase with (augmenting) the input, ce qui agit sur qqch et produit un effet (fr), (precede), (press showing; preview), (past; past times; yesteryear; ancient times; antiquity), (predecessor; forerunner), action, activity, natural action, natural process, add to, augment, boost, broaden, enlarge, expand, heighten, increase, raise, turn up, up, widen, positive feedback, positive feed-back, regeneration, Knowledge of Results, Knowledge of Results (Psychology), Prejudice, social institutions and poverty. Crespi B. J. The problem with regenerative amplifiers working at these very high gains is that they easily become unstable and start to oscillate. Bikini, bourbon, and badminton were places first. In some situations, the words sure and positive are roughly equivalent. ], (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. [6] In contrast, a system that has negative gain around the loop has negative feedback.[1][2]. In most cases, such feedback loops culminate in counter-signals being released that suppress or breaks the loop. Dolgonosov. [15], Digital electronic circuits are sometimes designed to benefit from positive feedback. | Veening,J., Smits, W.K., and Kuipers, O.P. The hyperbolic character of biodiversity growth can be similarly accounted for by a positive feedback between the diversity and community structure complexity. Nature (420), pp. 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"). In many cases population size is the limiting factor to the feedback effect. Carefully controlled positive feedback around a single transistor amplifier can multiply its gain by 1,000 or more. With a SensagentBox, visitors to your site can access reliable information on over 5 million pages provided by Sensagent.com. Positive feedback is communication that highlights a person's strengths and achievements. 295-316). For example, beginning at the macro level, Alfred J. Lotka (1945) argued that the evolution of the species was most essentially a matter of selection that fed back energy flows to capture more and more energy for use by living systems. An approval of something as being of a satisfactory standard (physics) A feedback loop in which the output of a system is amplified with a net positive gain Noun Encouragement, typically used to reinforce a person's behavior encouragement cheering emboldening motivation stimulation spurring morale boosting spiriting up shot in the arm cheering on ['pztv'] formally laid down or imposed. The meanings of certain and positive largely overlap; however, certain may apply to a basing of a conclusion or conviction on definite grounds or indubitable evidence. 114120, Jan. 1934. positive feedback - feedback in phase with (augmenting) the input regeneration feedback - the process in which part of the output of a system is returned to its input in order to regulate its further output Tips: browse the semantic fields (see From ideas to words) in two languages to learn more. In L.V. Find more similar words at wordhippo.com! (1981). Learn a new word every day. Systemic risk is the risk that an amplification or leverage or positive feedback process is built into a system, this is usually unknown, and under certain conditions this process can amplify exponentially and rapidly lead to destructive or chaotic behavior. 2. This video feedback effect was used in the opening sequences to early series of the television program Dr Who. While in some cases nearly identical to positive, cocksure implies presumptuous or careless positiveness. ['fidbk'] the process in which part of the output of a system is returned to its input in order to regulate its further output. Noun Phrase Help other members in your team or department improve by offering positive feedback and suggestions. This reduces their gain, but improves their linearity, input impedance, output impedance, and bandwidth, and stabilises all of these parameters, including the closed-loop gain. Synonyms plus 3. feedback noun. Lettris [8] Harold Stephen Black's classic 1934 paper first details the use of negative feedback in electronic amplifiers. Synonyms Similar meaning. Nglish: Translation of positive for Spanish Speakers, Britannica English: Translation of positive for Arabic Speakers. Dictionary of similar words, Different wording, Synonyms, Idioms for Synonym of positive feedback To make squares disappear and save space for other squares you have to assemble English words (left, right, up, down) from the falling squares. The more efficient a complex system is, the more likely it is to be prone to systemic risks, because it takes only a small amount of deviation to disrupt the system. regeneration plaudit applause approval appreciation recognition praise acclaim acclamation ovation approbation cheer compliment kudo feedback Filters Most terms are nouns Suggest adjective. These factors amount to an inefficiency, but they are necessary to avoid instabilities. 455-513). 1.feedback in phase with (augmenting) the input, ce qui agit sur qqch et produit un effet (fr)[Classe], processus d'autorgulation (fr)[ClasseParExt. [30], Positive feedback loops have been used to describe aspects of the dynamics of change in biological evolution. Positive feedback Positive feedback synonyms regeneration positive feedback and regeneration plaudit positive feedback and plaudit feedback positive feedback and feedback kudo positive feedback and kudo compliment positive feedback and compliment cheer positive feedback and cheer approbation positive feedback and approbation ovation The emergence of the child prodigy 10,000 years ago: An evolutionary and developmental explanation. The Schmitt trigger is, to some extent, a latching circuit. Synonyms for positive feedback loop include reflexivity and circular relationship. Accessed 4 Nov. 2022. Gifted children: Myths and Realities. Vandervert, L. (2009a). Regenerative circuits were invented and patented in 1914[12] for the amplification and reception of very weak radio signals. Type the word that you look for in the search box above. [29] This happens because noise can become amplified by positive feedback. The wordgames anagrams, crossword, Lettris and Boggle are provided by Memodata. In these cases hysteresis is mechanically achieved via positive feedback within a tipping point mechanism. "Positive Feedbacks in the Economy". Normal logic gates usually rely simply on gain to push digital signal voltages away from intermediate values to the values that are meant to represent boolean '0' and '1'. A daily challenge for crossword fanatics. 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. English Encyclopedia is licensed by Wikipedia (GNU). 224-230. positive response. 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 Lotka, A. when life gives you lemons, make lemonade. [1] That is, A produces more of B which in turn produces more of A. Synonyms for FEEDBACK: brief, direction, instruction, observation, advice, advisement, assistance, counsel [27], Positive feedback is a well studied phenomenon in gene regulation, where it is most often associated with bistability. 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. However, looking beyond the near-term challenges, we are starting to hear more, Dictionary, Encyclopedia and Thesaurus - The Free Dictionary, the webmaster's page for free fun content, Q-linea's first product expected to reach its main market earlier than planned, Gratitude can work wonders at workplace: Study, Tee A, Lolo Omotunde host Monarch Experience concert, Facebook price target lowered to $192 from $205 at Deutsche Bank, Al Maya Distribution inks deals at Gulfood, positive identification and radar advisory zone, Positive Energy Activates Constant Elevation, Positive Environments, Network of Trainers, positive hydrotropismnegative hydrotropism. ], 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. The result of positive feedback is to amplify changes, so that small perturbations may result in big changes. Di, Cookies help us deliver our services. Lactation stops when the baby no longer nurses. [38][39] Vandervert also argued that this working memory/cerebellar positive feedback loop was responsible for language evolution in working memory. [34], It has been shown that changes in biodiversity through the Phanerozoic correlate much better with hyperbolic model (widely used in demography and macrosociology) than with exponential and logistic models (traditionally used in population biology and extensively applied to fossil biodiversity as well). Some common synonyms of positive are certain, cocksure, and sure. positive reaction. ), Donella Meadows' twelve leverage points to intervene in a system, http://books.google.co.uk/books?id=a1gW4uV-q8EC&pg=PA42, http://books.google.com/books?id=REzmYOQmHuQC&pg=PA55, http://books.google.com/books?id=lROa-MpIrucC&pg=PA247, http://books.google.com/books?id=uah1PkxWeKYC&pg=PA276, http://books.google.com/books?id=0lPmEchB26AC&pg=PA235, http://books.google.co.nz/books?id=sExvSbe9MSsC, "A SHORT WAVE REGENERATIVE RECEIVER PROJECT", http://www.electronics-tutorials.com/receivers/regen-radio-receiver.htm, http://www.educypedia.be/electronics/analogosciltypes.htm, http://books.google.com/books?id=Qpmi4ia2nhcC&pg=PA254&lpg=PA254#v=onepage&q&f=false, "CMOS Schmitt TriggerA Uniquely Versatile Design Component", http://www.fairchildsemi.com/an/AN/AN-140.pdf, http://www.labri.fr/perso/strandh/Teaching/AMP/Common/Strandh-Tutorial/flip-flops.html, http://www.electronics-tutorials.ws/sequential/seq_1.html, "Analog Electronics Lecture 4 Part C RC coupled Amplifier Design Procedure", http://www.brianmayguitars.co.uk/accessories/19, Phanerozoic marine biodiversity follows a hyperbolic trend // Palaeoworld. Hence, on earth the gain of the overall system is always less than one, stopping the system from suffering runaway effects. | Positive feedback can also occur in other forms of cell signaling, such as enzyme kinetics or metabolic pathways. The hyperbolic pattern of the world population growth has been demonstrated (see below) to arise from a second-order positive feedback between the population size and the rate of technological growth. Give contextual explanation and translation from your sites ! Bernard P. Zeigler, Herbert Praehofer, Tag Gon Kim Section (2000). (1945). 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. See if you can get into the grid Hall of Fame ! |Last modifications, Copyright 2000-2022 sensagent Corporation: Online Encyclopedia, Thesaurus, Dictionary definitions and more. Positive Feedback synonyms - 161 Words and Phrases for Positive Feedback positive response n. regeneration n. # physics , science positive reaction n. favourable response n. positive comments n. approval n. good feedback n. positive responses n. positive view n. favourable reaction n. applause n. appreciation n. plaudit positive remarks n. (2004) Vicious circles: positive feedback in major evolutionary and ecological transitions. ['pztv'] indicating existence or presence of a suspected condition or pathogen. The positive feedback action minimises the length of time arcing occurs for during the switching and also holds the contacts in an open or closed state. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. The Netherlands: Springer Science. Privacy policy Volume 69, 2008. ['pztv'] persuaded of; very sure. 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. p.149. This is the basis for many social phenomena, including Ponzi schemes and chain letters. Modern radio receivers use the superheterodyne design, with many more amplification stages, but much more stable operation and no positive feedback. There are several designs for such harmonic oscillators, including the Armstrong oscillator, Hartley oscillator, Colpitts oscillator, and the Wien bridge oscillator. Genetic engineers have constructed and tested simple positive feedback networks in bacteria to demonstrate the concept of bistability. Most related words/phrases with sentence examples define Positive feedback meaning and usage. Noun Phrase Reward their hard work with positive feedback or small incentives. When the loop gain is positive and above 1, there will typically be exponential growth of any oscillations or divergences from equilibrium. 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). All rights reserved. A windows (pop-into) of information (full-content of Sensagent) triggered by double-clicking any word on your webpage. This effect is called hysteresis: the input voltage has to drop past a different, lower threshold to 'un-latch' the output and reset it to its original digital value. [28] A classic example of positive feedback is the lac operon in E. coli. Synonyms answer response 4. feedback noun. Get XML access to fix the meaning of your metadata. Bistability in the JNK cascade. [19], Audio and video systems can demonstrate positive feedback. N 3, pp. Electronics circuits and devices second edition. In the real world, positive feedback loops typically do not cause ever-increasing growth, but are modified by limiting effects of some sort. View all. In the diagram the + symbol is an adder and A and B are arbitrary, Hysteresis causes the output value to depend on the history of the input, A vintage style regenerative radio receiver. adjective. Antonyms for positive feedback. . Contact Us Volume 16, Issue 4, December 2007, Pages 311-318, Hyperbolic growth of marine and continental biodiversity through the Phanerozoic and community evolution // Journal of General Biology. 2. gl= tw(R)evolutionizing Political Communication through Social .Synonyms for positive feedback - ThesaurusSynonyms for positive feedback in Free Thesaurus. Add new content to your site from Sensagent by XML. noun. How to use a word that (literally) drives some pe Editor Emily Brewster clarifies the difference. Alexander, R. (1989). Anagrams positive feedback > synonyms. When a change occurs in a system, positive feedback causes further change, in the same direction. 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. The oscillation that can break out in a regenerative radio circuit is used in electronic oscillators. The law of evolution as a maximal principle. "High Frequency Amplifiers" Bell System Technical Journal 3 (April 1924):181-205. The SensagentBox are offered by sensAgent. Synonyms & Antonyms of positive It has been suggested that the similarity between the curves of biodiversity and human population probably comes from the fact that both are derived from the interference of the hyperbolic trend (produced by the positive feedback) with cyclical and stochastic dynamics. Sydney: Holt, Rinehard & Winston, Inc. Such feedback can be direct, or can be via other state variables. Most English definitions are provided by WordNet . However, sure usually stresses the subjective or intuitive feeling of assurance. Synonyms quality unsupportive destructive perverse counter antagonistic Rhymes with Negative Feedback biofeedback Sentences with negative-feedback 1. Such a bistable circuit is the basis of one bit of electronic memory. The magnitude of the forces that act to move such a system away from its equilibrium are an increasing function of the "distance" of the state from the equilibrium. Record deck pickup cartridges can do the same, usually in the low frequency range < 100Hz, manifesting as a low rumble. Winner (1996) described gifted children as driven by positive feedback loops involving setting their own learning course, this feeding back satisfaction, thus further setting their learning goals to higher levels and so on. [17] Computer random access memory (RAM) can be made in this way, with one latching circuit for each bit of memory. According to Donella Meadows: Hysteresis can be generated by positive feedback. (Entry 2 of 2). H.S. English thesaurus is mainly derived from The Integral Dictionary (TID). 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. [10] In that case, it can be shown that the overall or "closed loop" gain from input to output is: When AB > 1, the system is unstable, so does not have a well-defined gain; the gain may be called infinite. The latter models imply that changes in diversity are guided by a first-order positive feedback (more ancestors, more descendants) and/or a negative feedback arising from resource limitation. https://www.thefreedictionary.com/positive+feedback, The new revolutionary smartphones saw a record number of pre-orders since it's unveiling in February and have also received extremely, Against this background, and because of the, The revolutionary smartphones have seen a record number of pre-orders and received extremely, In 2018 a total of 3,529 stories were shared on the website, with, Head of Entertainment in the company, Mark Redguard, expressed his delight on the, The analyst remains positive on Facebook shares over the medium term but says the upcoming Q3 results are unlikely to be a positive catalyst, "particularly unless sell-side consensus estimates come down for 2019." Classic Thesaurus. Jimi Hendrix helped to develop the controlled and musical use of audio feedback in electric guitar playing,[20] and later Brian May was a famous proponent of the technique.[21]. 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. Positive feedback in chemical reactions can increase the rate of reactions, and in some cases can lead to explosions. [2] System parameters will typically accelerate towards extreme values, which may damage or destroy the system, or may end with the system 'latched' into a new stable state. Definitions of Positive_feedback, synonyms, antonyms, derivatives of Positive_feedback, analogical dictionary of Positive_feedback (English) You can also try the grid of 16 letters. If the loop gain AB is positive, then a condition of positive or regenerative feedback exists. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. Log in. Evolution of the human psyche. [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. These parameters also become less dependent on the details of the amplifying device itself, and more dependent on the feedback components, which are less likely to vary with manufacturing tolerance, age and temperature. ['pztv'] involving advantage or good. This risk is more likely as the complexity of the system increases, because it becomes more difficult to see or analyze all the possible combinations of variables in the system even under careful stress testing conditions. If devices have to be used near to their maximum power-handling capacity, and thermal runaway is possible or likely under certain conditions, improvements can usually be achieved by careful design. Another sociological example of positive feedback is the network effect. Engineered gene circuits. ['pztv'] characterized by or displaying affirmation or acceptance or certainty etc.. 1. W. Brian Arthur (February 1990). 15 Positive feedback Synonyms. good feedback. Lettris is a curious tetris-clone game where all the bricks have the same square shape but different content. adjective. 4. A classic example is a bank run. Positive feedback synonyms What is another word for Positive feedback? ['pztv'] impossible to deny or disprove. Access desktop version When you provide positive feedback, you are telling your team members what they're doing correctly and should continue to do. 1 synonym for positive feedback: regeneration. Keesing, R.M. adjective. A viral video is an example of the network effect in which links to a popular video are shared and redistributed, ensuring that more people see the video and then re-publish the links. [33] The analogy of Evolutionary arms races provide further examples of positive feedback in biological systems. 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. Ben Zuckerman and David Jefferson (1996). 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. Chemicals break down the blood clot. Princeton: Princeton University Press. [32] Crespi (2004) discussed several other examples of positive feedback loops in evolution.