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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.
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Positive and feedback
* Positive feedback
Positive feedback loops, such as the simple X activates Y and Y activates X motif, essentially links output signals to their input signals and have been noted to be an important regulatory motif in cellular signal transduction because positive feedback loops can create switches with an all-or-nothing decision.
Some circuits may use Positive feedback and Negative feedback around the same amplifier, for example Triangle wave oscillators and active filters.
* Positive feedback
* Positive feedback
Positive feedback then occurs from the cross-connected inverters, thereby amplifying the small voltage difference between the odd and even row bit-lines of a particular column until one bit line is fully at the lowest voltage and the other is at the maximum high voltage.
* Positive feedback
* Positive feedback
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 .< ref name = theorymodelling >
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.
Positive feedback tends to cause system instability.
Positive feedback is used in digital electronics to force voltages away from intermediate voltages into ' 0 ' and ' 1 ' states.
Positive feedback in chemical reactions can increase the rate of reactions, and in some cases can lead to explosions.
Positive feedback in mechanical design causes tipping-point, or ' over-centre ', mechanisms to snap into position, for example in switches and locking pliers.
Positive feedback in economic systems can cause boom-then-bust cycles.
::" Positive feedback loops are sources of growth, explosion, erosion, and collapse in systems.
Positive feedback --
Positive feedback compensates the energy loss caused by R, so we may express it as bringing in some negative R. Quality with feedback is.
Positive and may
Positive consequentialism demands that we bring about good states of affairs, whereas negative consequentialism may only require that we avoid bad ones.
Positive and negative discrete emotions can be strategically displayed to influence task and relational outcomes and may play out differently across cultural boundaries.
Positive externalities of transport networks may include the ability to provide emergency services, increases in land value and agglomeration benefits.
Positive externalities of transport networks may include the ability to provide emergency services, increases in land value and agglomeration benefits.
Positive psychologists argue that positive and negative processes in relationships may be better understood as functionally independent, not as opposites of each other.
In a March 2009 edition of The Journal of Positive Psychology, Sara Algoe and Jonathan Haidt say that " happiness " may be the label for a family of related emotional states, such as joy, amusement, satisfaction, gratification, euphoria, and triumph.
Positive charges may also be mobile, such as the cationic electrolyte ( s ) of a battery, or the mobile protons of the proton conductor of a fuel cell.
Positive is a property of positivity and may refer to:
Positive End Expiratory Pressure may or may not be employed to prevent atelectasis in adult patients.
In extreme cases, the procedure may be indicated as a treatment for severe Obstructive Sleep Apnea seen in patients intolerant of Continuous Positive Airway Pressure ( CPAP ) therapy.
Although the performance of both types of SCBA may be similar under optimum conditions, this " fail safe " behaviour makes a " Positive pressure " SCBA preferable for most applications.
" Positive margins " means that disease was found, and a wider excision may be needed, depending on the diagnosis.
This actor may possess a great deal of Negative Liberty, but very little Positive Liberty according to Taylor.
Positive affinity for a specific stain may be designated by the suffix-philic.
Positive allometry may benefit thermoregulation because it means that, as individuals get larger, surface area increases faster than mass.
Positive outcome bias may refer to:
Positive tests (" positive stool ") may result from either upper gastrointestinal bleeding or lower gastrointestinal bleeding and warrant further investigation for peptic ulcers or a malignancy ( such as colorectal cancer or gastric cancer ).
Readers interested in HSP may want to compare and contrast Aron's approach with Dabrowski's concept of over-excitability in his theory of Positive Disintegration.
His paper introducing Ludics, Locus solum: from the rules of logic to the logic of rules, has some features that may be seen as eccentric for a publication in mathematical logic ( such as illustrations of Positive Skunks ).
Positive liberty may be understood as self-mastery ; and includes one's having a role in choosing who governs the society of which one is a part.
Positive reinforcement mechanisms include points, rewards and signs of status, while punishment procedures may include time-outs, point deductions, reversal of status, prolonged stays at a facility, physical restraint, or even corporal punishment.
Positive and be
Ratified in the Republican Party victory in 1952, the Positive State is now evidenced by political campaigns being waged not on whether but on how much social legislation there should be.
Positive charge can be defined as the charge left on a glass rod after being rubbed with silk.
Positive commandments ( of which tradition holds there are 248 ) require an action to be performed and are considered to bring the performer closer to God.
During the initial assessment and the follow-up, both positive and negative symptoms of psychosis can be assessed using the 30 item Positive and Negative Symptom Scale ( PANSS ).
Positive WNV test kits obtained via use of these kits should be confirmed by additional testing at a state health department laboratory or CDC.
He is also known for his rejection of Christianity, having played an important role in the development of Positive Christianity, which he intended to be transitional to a new Nazi faith.
* Positive rights are permissions to do things, or entitlements to be done unto.
Should such stories be allowed to pass without severest censure ?” Positive reviewers describe it as impressive because it is the most suggestive and graphic account of why women who live monotonous lives go crazy.
On page 27 of the 1855 printing of Harriet Martineau's translation of The Positive Philosophy of Auguste Comte, we see his observation that, " If it is true that every theory must be based upon observed facts, it is equally true that facts can not be observed without the guidance of some theories.
(" Positive nodes " is a term that would be used by medical specialists to describe a patient's condition, meaning that the patient's lymph nodes near the primary tumor tested positive for malignancy.
" Positive psychologists are exploring what makes existing relationships flourish and what skills can be taught to partners to enhance their existing and future personal relationships.
* Positive politeness: Seeks to establish a positive relationship between parties ; respects a person's need to be liked and understood.
Positive mood can be caused by many different aspects of life as well as have certain effects on people as a whole.
Positive selection can, in turn, be further subdivided into directional selection, which tends toward fixation of an advantageous allele, and balancing selection, which maintains a polymorphism.
Positive leniency tends to be a problem with self-assessments.
Positive results show that a certain class of functions can be learned in polynomial time.
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