efficiency

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Related to efficient: Efficient frontier, Efficient market hypothesis

ef·fi·cien·cy

(e-fish'en-sē),
1. The production of the desired effects or results with minimum waste of time, money, effort, or skill.
2. A measure of effectiveness; specifically, the useful work output divided by the energy input.

efficiency

[ifish′ənsē]
1 the production of desired results with the minimum waste of time and effort.
2 the amount of achievement compared with the effort expended.
3 (in radioassay) the counts perceived by a beta or gamma counter relative to the known disintegration rate of a comparable standard radioactive source.

efficiency

Lab medicine The relative ability of a test to detect a disease, while maintaining the rate of false positive results to a minimum; the efficiency of a test is defined as the number of true positives and true negatives multiplied by one hundred, divided by the sum of true positives, true negatives, false positives and false negatives. Cf Four cell diagnostic matrix.

ef·fi·cien·cy

(ĕ-fish'ĕn-sē)
1. The production of the desired effects or results with minimum waste of time, effort, or skill.
2. A measure of effectiveness; specifically, the useful work output divided by the energy input.

efficiency

the ratio of energy (or work) output by a body or device to the energy input required. mechanical efficiency the ratio of mechanical energy output (or work output) to the energy input.

ef·fi·cien·cy

(ĕ-fish'ĕn-sē)
1. Production of desired effects or results with minimum waste of time, money, effort, or skill.
2. Measure of effectiveness; specifically, useful work output divided by the energy input.

efficiency,

n the operation of a dental practice in such a way that both business and professional services are performed in a minimal amount of time without sacrificing quality of work, sympathetic attitude, and kindliness.

efficiency

1. in clinical practice equals the effect achieved in relation to the expenditure and effort expended.
2. in physiological terms, efficiency of any organ or tissue is equal to the ratio of useful energy produced to total energy expended.

Patient discussion about efficiency

Q. Is electric shock efficient for ocd? Is it dangerous? My husband has OCD for 15 years now. He was also diagnosed with mania-depressia. He takes so many medications and nothing really helps. We were offered to try electric shock and I'm scared. Is it dangerous? What are the chances of this method to work for him?

A. Electroconvulsive therapy (ECT) is indeed considered effective for OCD, although it's not the first line of treatment. It does have its risks, including memory loss, disorientation and sort of confusion. There is also a change in the activity of the heart but it's rarely significant.

Generally it can be said that it's not an absolutely safe treatment, but it may help, especially if other drugs don't help.

You may read more here:
http://www.nlm.nih.gov/medlineplus/ency/article/003324.htm

More discussions about efficiency
References in classic literature ?
Because when once an efficient national government is established, the best men in the country will not only consent to serve, but also will generally be appointed to manage it; for, although town or country, or other contracted influence, may place men in State assemblies, or senates, or courts of justice, or executive departments, yet more general and extensive reputation for talents and other qualifications will be necessary to recommend men to offices under the national government, -- especially as it will have the widest field for choice, and never experience that want of proper persons which is not uncommon in some of the States.
The Swedes, rifles in hand, repelled numerous savage charges which lacked only efficient leadership to have rendered them as effective in results as they were terrifying in appearance.
But father has a way of arriving at his ends which is more efficient than violence.
He had a vast coil of cord efficient for the purpose, which worked on a roller fixed on the parapet of the tower.
He was probably the one really efficient person in the house.
When I first came up to London I had rooms in Montague Street, just round the corner from the British Museum, and there I waited, filling in my too abundant leisure time by studying all those branches of science which might make me more efficient.
Carfry was very ill, and as she and her sister Miss Harle were travelling alone they were profoundly grateful to the Archer ladies, who supplied them with ingenious comforts and whose efficient maid helped to nurse the invalid back to health.
In modern terms, it is a simple, rough-and-ready attempt to solve that constant problem of politics, how efficient government is to be combined with popular control.
Miller, who, though deeply alarmed, was, rather to his surprise, perfectly composed, and, as it appeared, a most efficient and judicious nurse.
Strickland's sister was older than she, not unlike her, but more faded; and she had the efficient air, as though she carried the British Empire in her pocket, which the wives of senior officers acquire from the consciousness of belonging to a superior caste.
Moreover the Asiatics had a real fighting flying-machine, the Niais as they were called, a light but quite efficient weapon, infinitely superior to the German drachenflieger.
To all intents and purposes the compass was as efficient as before; but, as a matter of fact, the moving of the pointers upon the dials resulted now in no corresponding shift of the mechanism beneath--and the device was set, immovably, upon a destination of the slave's own choosing.

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