If predictable operation is desired, negative feedback is used, by applying a portion of the output voltage to the inverting input.

If the feedback network is made of components with relatively constant, stable values, the variability of the op-amp's open loop response does not seriously affect the circuit's performance.

If the input voltages change in the same direction, the negative feedback makes Q3 / Q4 base voltage follow ( with 2V < sub > BE </ sub > below ) the input voltage variations.

If the base current to the transistor is assumed to be zero, the negative feedback forces the transistor to increase its collector-emitter voltage up to 1 V until its base-emitter voltage reaches 0. 625 V ( a typical value for a BJT in the active region ).

For example, in a negative feedback loop, the transcription factor acts as its own repressor: If the transcription factor protein binds the DNA of its own gene, it will down-regulate the production of more of itself.

If one worker receives positive feedback from the boss while the other employee feels like they deserved that, positive feedback jealousy can arise.

If the gain is large, but slightly less than 1, then high-pitched slowly decaying feedback tones will be created, but only with some input sound.

If not designed correctly, amplifiers with negative feedback can become unstable, resulting in unwanted behavior such as oscillation.

If A < sub > OL </ sub > >> 1, then A < sub > fb </ sub > ≈ 1 / β and the effective amplification ( or closed-loop gain ) A < sub > fb </ sub > is set by the feedback constant β, and hence set by the feedback network, usually a simple reproducible network, thus making linearizing and stabilizing the amplification characteristics straightforward.

If Pica is motivated by sensory feedback, an alternative method of feeling that sensation should be provided.

If a system has overall a high degree of negative feedback, then the system will tend to be stable.

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.

If the loop gain AB is positive, then a condition of positive or regenerative feedback exists.

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 ).

If a microphone picks up the amplified sound output of loudspeakers in the same circuit, then howling and screeching sounds of audio feedback ( at up to the maximum power capacity of the amplifier ) will be heard, as random noise is re-amplified by positive feedback and filtered by the characteristics of the audio system and the room.

If accepted, the feedback will be published in a scrolling list of comments in reverse chronological order, with the most recent submission at the top of the page.

If fully activated, this control will ultimately produce a continuous feedback loop of pure noise.

From a NY Times article about the same topic “... On another forum, Digital Point, a poster wrote, “ I will pay for positive feedback on TripAdvisor .” A Craigslist post proposed this: “ If you have an active Yelp account and would like to make very easy money please respond .”( 1 )( 2 ) There are tens-of-thousands of ads out there all over the internet of people requesting you to write bogus reviews for their business and people offering to do the same.

If the strength of a synapse is only reinforced by stimulation or weakened by its lack, a positive feedback loop will develop, causing some cells never to fire and some to fire too much.

If synapses were only reinforced by positive feedback, they would eventually come to the point of complete inactivity or too much activity.

If you include the driver in the system, then he does provide a feedback path by observing the direction of travel and compensating for errors by turning the steering wheel.

Zahi Hawass, the former chief of Egypt's Supreme Council of Antiquities, asked that the stele be repatriated to Egypt, urging in comments to reporters: " If the British want to be remembered, if they want to restore their reputation, they should volunteer to return the Rosetta Stone because it is the icon of our Egyptian identity ".

" Later in the film, when the brothers are driving rapidly through Chicago, Elwood ( Dan Aykroyd ) comments " If my estimations are correct, we should be very close to the Honorable Richard J. Daley Plaza.

If so, a disassembler operating on the machine code would produce disassembly lacking these constants and comments ; the disassembled output becomes more difficult for a human to interpret than the original annotated source code.

If it fails to make the threshold, other factors ( such as number of comments, type of comments, and their ratings ) can still cause the story to be posted to section or front page.

On the McLauglin Group, Buchanan has made such comments as “‘ Capitol Hill is Israeli occupied territory ’ and ‘ If you want to know ethnicity and power in the United States Senate, 13 members of the Senate are Jewish folks who are from 2 percent of the population.

The Editorial Policy states inter alia: " If you think you've been unfairly edited, or that we've wrongly refused to publish your comments, please feel free to query our decision by posting a comment.

" Also in 1996, a critical review of the book was penned by William A. Donohue, president of The Catholic League, who comments: " If this sounds like nonsense, well, it is.

Al-Tabari comments on sura XVI, verse 108 ( Tafsir, Bulak 1323, xxiv, 122 ): " If any one is compelled and professes unbelief with his tongue, while his heart contradicts him, in order to escape his enemies, no blame falls on him, because God takes his servants as their hearts believe.

In his impatience, Panizzardi had telegraphed in cipher on 2 November: " If Captain Dreyfus has had no intercourse with you, it would be to the purpose to let the ambassador publish an official denial, in order to forestall comments by the press.

In Bremer's diary were comments such as " My country tis of thee land of sweet bigotry ," " Never say colored, say Negro, so here is a negro card ," " My blood is black ," " Cheer up Oswald ," " White collar, conservative, middle class, Republican, suburbanite robot ," " A Thundering of hooves and out of the western sky came the colored man ," and " If I live tomorrow then it will be a long time.

" Mario Untersteiner comments: " If death follows according to nature, why torment its opposite, life, which is equally according to nature?

If these reviews are positive the article may be referred back to the authors to address any comments by the reviewers, or ( rarely ) may be accepted immediately by the editorial board.

If Barack Obama had lived here I would be very surprised if even somebody as brilliant as him would have been able to break through the institutional stranglehold that there is on power within the Labour party. The comments gained support and criticism from members of ethnic communities in the UK.

If the Speaker considers it appropriate to hold a by-election, he or she consults with the Australian Electoral Commission as to the suitability of various dates, invites comments from the various party leaders about the proposed dates, makes the final choice, and issues the writ.

If a comment appears as the first line after the " Prgm " statement, it is displayed in the status bar when the program is selected in the catalog ; such comments are often used to document the names or types of parameters.

If he still felt offended, Thayer may have steered later comments away from connecting Kelly to it.

If you notice this happening, start a section on the talk page and place your comments there.

If, for example, you mark your talk page comments as " minor ", then fewer editors are likely to notice your comment.

However, a day later, in response to comments the WTC received via email and from comments received through Facebook, Ben Fertic, then CEO of WTC, appeared in a online video announcing that Ironman Access program would be rescinded, stating: " If you guys think we're wrong, we're wrong.

If Richard was unpopular in Aquitaine, Philip II was equally unliked by his contemporaries with comments describing him as: astute, manipulative, calculating, penurious and ungallant ruler.

“ When my authority is being commented on or undermined by wrong observations, I have to correct them, or the view will prevail that I am indeed not in charge of Singapore ….. If left unchecked, snide comments would, over time, erode the people ’ s respect for the office ,” he said.