• WordNet 3.6
    • n effectiveness capacity to produce strong physiological or chemical effects "the toxin's potency","the strength of the drinks"
    • n effectiveness power to be effective; the quality of being able to bring about an effect
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Additional illustrations & photos:

Effect of Gladstonianism. Balfourism. Healyism Effect of Gladstonianism. Balfourism. Healyism

Webster's Revised Unabridged Dictionary
  • Interesting fact: Peanut butter is an effective way to to remove chewing gum from hair or clothes
    • n Effectiveness The quality of being effective.
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Century Dictionary and Cyclopedia
  • Interesting fact: It has been medically been proven that laughter is an effective pain killer
    • n effectiveness The quality of being effective. Synonyms Effectiveness, Efficiency, Efficacy, Effectualness. The same differences obtain among these words as among effective, efficient, efficacious, and effectual. (See comparison under effective.) Effectualness is less often used, on account of its awkwardness.
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  • Graffiti
    “Laughter is the only tranquilizer with no side effects.”
  • H. L. Mencken
    “One horse-laugh is worth ten thousand syllogisms. It is not only more effective; it is also vastly more intelligent.”
  • Ulysses S. Grant
    Ulysses S. Grant
    “I know of no method to secure the repeal of bad or obnoxious laws so effective as their strict execution.”
  • Source Unknown
    Source Unknown
    “Efficiency tends to deal with Things. Effectiveness tends to deal with People. We manage things, we lead people”
  • Ralph Waldo Emerson
    “Life is a perpetual instruction in cause and effect.”
  • George Eliot
    “But that intimacy of mutual embarrassment, in which each feels that the other is feeling something, having once existed, its effect is not to be done away with.”


In literature:

The effects of corrosion of ammunition are of even more importance than the direct effects of gas upon machine guns and rifles.
"Military Instructors Manual" by James P. Cole and Oliver Schoonmaker
To effect by policy all the changes which a revolution would do by force.
"An Illustrated History of Ireland from AD 400 to 1800" by Mary Frances Cusack
In the autumn of 1562 Montigny was sent on a special mission to Madrid, but returned without effecting anything.
"History of Holland" by George Edmundson
What do you understand from the terms "reasoning from effect to cause" and "from cause to effect?
"The Art of Public Speaking" by Dale Carnagey (AKA Dale Carnegie) and J. Berg Esenwein
What effect had the murder of Tarquin on his subjects?
"Pinnock's Improved Edition of Dr. Goldsmith's History of Rome" by Oliver Goldsmith
In all its effects, learning the meanings of things, is better than learning the meanings of words.
"Essays on Education and Kindred Subjects" by Herbert Spencer
In speaking of nations, wealth and power are sometimes related to each other, as cause and effect.
"An Inquiry into the Permanent Causes of the Decline and Fall of Powerful and Wealthy Nations." by William Playfair
The effects of purely solvent denudation are less easily traced, but, very probably, they have been of not less importance.
"The Birth-Time of the World and Other Scientific Essays" by J. (John) Joly
"The History of Sumatra" by William Marsden
This barbarous custom produced no effect; for scarcely was one chief destroyed before another presented himself to replace him.
"Biographies of Distinguished Scientific Men" by Francois Arago
This must be the effect of magic, not of reason.
"Memoir, Correspondence, And Miscellanies, From The Papers Of Thomas Jefferson" by Thomas Jefferson
Some think that his death will not produce any immediate effect in Europe.
"Memoir, Correspondence, And Miscellanies, From The Papers Of Thomas Jefferson" by Thomas Jefferson
Causes have been adding to causes, and effects accumulating on effects, from that time to this.
"Memoir, Correspondence, And Miscellanies, From The Papers Of Thomas Jefferson" by Thomas Jefferson
One of the first and principal effects of the change of dynasty in 1688 had been to give an immense impetus to Protestant feeling.
"The English Church in the Eighteenth Century" by Charles J. Abbey and John H. Overton
The Navigation Acts, in effect, gave a monopoly of colonial commerce to British ships.
"History of the United States" by Charles A. Beard and Mary R. Beard
The more effective the fire to which the enemy is subjected the less effective will be his fire.
"Infantry Drill Regulations, United States Army, 1911" by United States War Department
The effects that gambling and betting have upon character are still more important and dangerous than their effects upon income.
"The Principles of Economics" by Frank A. Fetter
Related to the effect of gravity on living processes is the problem of the effects of weightlessness.
"Significant Achievements in Space Bioscience 1958-1964" by National Aeronautics and Space Administration
Dr. M. brought me about, and checked the disease, without any permanently injurious effects on my general health.
"The Indian in his Wigwam" by Henry R. Schoolcraft
This effect, however, while interesting, is but a minor incident.
"The Complete Opera Book" by Gustav Kobbé

In poetry:

Her sister, cross in looks and word,
(The cares of life have this effect,)
Came and accused her, to her Lord,
Of idleness and of neglect.
"To Mary" by David John Scott
No med'cines could effect the cure
So quick, so easy, or so sure;
The deadly sentence God repeals,
He sends his sovereign word, and heals.
"Psalm 107 part 3" by Isaac Watts
And still we love the evil cause,
And of the just effect complain
We tread upon life's broken laws,
And murmur at our self-inflicted pain;
"The Shadow And The Light" by John Greenleaf Whittier
This takes your faultless trousers at the knees,
The other hurts them rather more behind;
And both effect a fracture in your ease
Of mind.
"To An Old Fogey" by Sir Owen Seaman
Know these are but the outer crust -
All space and time, all effect, cause.
I am beyond all sense, all thoughts,
The witness of the universe.
"The Song Of The Free" by Swami Vivekananda
Their few effects, their meagre store
Is soon arranged; this being o'er
Toward Eden's bowers, now still in view,
They turn and bid a last adieu.
"Banishment Of Man From The Garden Of The Lord" by James Madison Bell

In news:

New International ACH Rules Take Effect September 18. Business and Policy Areas.
Today's obituaries: CV 'Major' Bowes, Covewood Lodge proprietor, one of the first to speak out against the effects of acid rain .
An avid naturalist and environmentalist, Major became one of the first to speak out against the effects of acid rain in the early 1980s.
More than 150 years after acid rain was first identified, scientists now see success in recovery from its damaging effects.
John Blackstone reports on the effects it's having on farmers and wildlife of the sea.
Lemon juice is considered adequate and effective for this purpose and must always be used for water-bath and steam-pressure canning.
Some pieces of theatrical magic were more effective than others.
New Guide for Evaluation of the Effectiveness of Hand Hygiene Topical Antimicrobial Products Using Ex Vivo Porcine Skin.
One of the new Florida condominium laws that went into effect back in 2010 was tweaked again as part of House Bill 1195 that became effective July 1, 2011.
Experts say that dose would have little effect on an average patient, and possibly no effect on a regular user.
A new alternative to estrogen may offer older women many of the hormone's healthful effects on hearts and bones without one of its most worrisome side effects, an increased risk of breast cancer.
However, the effectiveness of ?-blockers for preventing CV events in patients with hypertension has been questioned recently, but it is unclear whether this is a class effect.
Lake Effect Snow Advisory issued November 23 at 3:25PM EST expiring November 25 at 7:00AM EST in effect for: Ashtabula.
To vet the drug, voted that its small effect in heightening libido did not outweigh side effects like dizziness and nausea.
Spacers (also called holding chambers) work with your metered dose inhaler (MDI) to deliver inhaled medication more easily and effectively, and can reduce side effects.

In science:

Finally, other manifestations of heavy Ma jorana neutrino effects are LFV and universality-breaking effects in the Z -boson decays [49, 50] and non-unitarity effects in neutrino oscillations .
The Little Review on Leptogenesis
The effect of MG appears to be significant as for the redshift range we are interested in (z < 1.5) the change of D(a) is ∼ 2% and f (a) is ∼ 0.5% if g0 is changed by 1% (the effect of η0 has the same effect but with opposite sign).
Tests of Gravity from Imaging and Spectroscopic Surveys
However, when the CS effect enhances the amplitude, there is no real inclination angle that can mimic this effect (ie. the effective angle would have to be imaginary).
Chern-Simons Modified General Relativity
The effective potential z ′′ s /zs depends on time, on polarization but also on wavenumber, which distinguishes this CS effect from the standard GR case, where the effective potential depends on conformal time only.
Chern-Simons Modified General Relativity
The reason hinges in the fact that to first order in perturbation theory, short-distance effects are suppressed and the decay amplitude to one-loop order in chiral effective theory is free from unknown low energy effective constants (LEC’s).
$K_{S}$ $\to$ $\gamma \gamma$ at one-loop revisited
We computed the Balmer emission-line profiles that result from the reprocessing of emission using a numerical model of a warped disc induced by the Bardeen-Petterson effect, including all relativistic effects for radiation propagation, and sub ject to various shadowing effects associated with disc warping.
Reprocessed emission from warped accretion discs induced by the Bardeen-Petterson effect
When the contribution of the inflaton gradients is small, the above formalism remains applicable also with the inclusion of this field whose ultimate effect reduces to the generation of the effective cosmological constant Λ = V (ϕ)/M 2 P and the effective Planck mass.
Tunneling cosmological state revisited: Origin of inflation with a non-minimally coupled Standard Model Higgs inflaton
We say that a vector w ∈ V is quasi-effective in V if w · v ≥ 0 for every element v ∈ V which is nef with respect to V .5 In particular each effective element is quasi-effective; more generally, any vector numerically equivalent to an effective vector is quasi-effective.
Zariski decomposition: a new (old) chapter of linear algebra
Strong evidence that citation effect caused by self-selection and early-view effects. No evidence of of citation effect as a result of OA.
Studies on access: a review
So, when the neutrinos travel outward from the SN core, they first experience collec tive effects, and then matter effects, which may be modified by shock wave effects.
Physics and Astrophysics Opportunities with Supernova Neutrinos
The effects fall into two broad categories, instrumental effects, and physics effects.
Top Quark Physics at the Tevatron
But there are now sophisticated implementations of running coupling effects in the evolution equations (see the contributions by Kovchegov and by Albacete). A generic effect of the running of the coupling is to slow down the effects of the evolution.
The Status of Parton Saturation and the CGC
Emax is the maximal effect that can be achieved, C is the drug concentration, and EC50 is the drug concentration that induced an effect equivalent to 50% of the maximal effect.
A dynamic Bayesian nonlinear mixed-effects model of HIV response incorporating medication adherence, drug resistance and covariates
They claim that this is also the case for redshift tests using standard clocks, like the Pound-Rebka experiment, where the redshift effect is cancelled by a controlled first order Doppler effect, thus effectively leaving a null signal independent of the 14.4 keV transition frequency.
Reply to the comment on: "Does an atom interferometer test the gravitational redshift at the Compton frequency?"
We show that there exists an effectively computable number c depending only on P , an effectively computable number C depending only on ε and an effectively computable constant C± such that k ck < F (k) < C (kt)(1+ε)kt and k ck < F± (k) < exp((kt)C± ).
Representing integers as linear combinations of power products