(n.) A rigid piece which is capable of turning about one point, or axis (the fulcrum), and in which are two or more other points where forces are applied; -- used for transmitting and modifying force and motion. Specif., a bar of metal, wood, or other rigid substance, used to exert a pressure, or sustain a weight, at one point of its length, by receiving a force or power at a second, and turning at a third on a fixed point called a fulcrum. It is usually named as the first of the six mechanical powers, and is of three kinds, according as either the fulcrum F, the weight W, or the power P, respectively, is situated between the other two, as in the figures.
(n.) A bar, as a capstan bar, applied to a rotatory piece to turn it.
(n.) An arm on a rock shaft, to give motion to the shaft or to obtain motion from it.
Example Sentences:
(1) In this experiment animals were trained to lever press in two distinctive contexts.
(2) Orientation and lever responding were not functionally related.
(3) In older stages, the cervical joints rotate according to geometric and lever arm principles.
(4) In EastEnders , the mystery surrounding the identity of Kat's secret squeeze continues amid the grinding of narrative levers and the death rattle of overflogged script-horses.
(5) Cats were trained to press a lever for 0.5--1.0 ml of milk reward both in the presence and absence of ambient light.
(6) Setting out how Britain would have a lever over the rest of the EU to demand repatriation of UK competences, Cameron said: "What's happening in Europe right now is massive change being driven by the existence of the euro.
(7) When lever pressing was established, the 2-kHz signal was presented through a speaker adjacent to the response lever according to a different set of variable intertrial intervals.
(8) Officials said the changes to the planning rules will mean it is possible to lever in billions of private sector development in low-cost housing.
(9) Rats were allowed to bar press on either of two levers (left and right).
(10) Knee flexion is synchronized with ankle dorsiflexion by a synchronizer rod and lever.
(11) In order to study the interactions between serotonergic mechanism and electrical stimulation of the mesencephalic central gray substance, rats were trained to lever-press for terminating aversive electric stimuli applied at the Periaqueductal gray and adjoining tectum of the mesencephalon.
(12) Rats were trained to press a lever to obtain a brief burst of pulses to the lateral hypothalamus.
(13) But its original meaning is the practice of using the levers of the state and of government to get difficult things done that otherwise wouldn't happen.
(14) Intact rats and rats bearing lesions of the suprachiasmatic nuclei (SCNX rats) were trained to obtain food by pressing either of two levers located on opposite sides of a cylindrical cage.
(15) We found that attenuation of lever-pressing and water intake by raclopride were not more separated in dose than after, for example, haloperidol.
(16) Young rats weaned at 16 days were taught to press a lever by shaping at 18 days and trained for 11 days (from 20 to 30 days of age) on a fixed-interval 60-sec schedule, at a rate of 5 half-hour sessions per day.
(17) In contrast, the selective norepinephrine uptake inhibitors, desipramine and talsupram, and the selective serotonin uptake inhibitor, citalopram, occasioned averages of only 13 to 19% drug-lever responding.
(18) When reinforcement was not available, each lever response produced a 0.5-sec green light on the key.
(19) Rats implanted with placebo pellets and given access to morphine reestablished lever pressing, while those given access to isotonic saline extinguished their lever pressing.
(20) Levels of acetylcholine were significantly elevated in the telencephalon and diencephalon + mesencephalon of rats killed by near-freezing during conditioned suppression of food-reinforced lever pressing, whereas levels of serotonin, dopamine, and norepinephrine were not altered.
Slide
Definition:
(v. t.) To move along the surface of any body by slipping, or without walking or rolling; to slip; to glide; as, snow slides down the mountain's side.
(v. t.) Especially, to move over snow or ice with a smooth, uninterrupted motion, as on a sled moving by the force of gravity, or on the feet.
(v. t.) To pass inadvertently.
(v. t.) To pass along smoothly or unobservedly; to move gently onward without friction or hindrance; as, a ship or boat slides through the water.
(v. t.) To slip when walking or standing; to fall.
(v. t.) To pass from one note to another with no perceptible cassation of sound.
(v. t.) To pass out of one's thought as not being of any consequence.
(v. t.) To cause to slide; to thrust along; as, to slide one piece of timber along another.
(v. t.) To pass or put imperceptibly; to slip; as, to slide in a word to vary the sense of a question.
(n.) The act of sliding; as, a slide on the ice.
(n.) Smooth, even passage or progress.
(n.) That on which anything moves by sliding.
(n.) An inclined plane on which heavy bodies slide by the force of gravity, esp. one constructed on a mountain side for conveying logs by sliding them down.
(n.) A surface of ice or snow on which children slide for amusement.
(n.) That which operates by sliding.
(n.) A cover which opens or closes an aperture by sliding over it.
(n.) A moving piece which is guided by a part or parts along which it slides.
(n.) A clasp or brooch for a belt, or the like.
(n.) A plate or slip of glass on which is a picture or delineation to be exhibited by means of a magic lantern, stereopticon, or the like; a plate on which is an object to be examined with a microscope.
(n.) The descent of a mass of earth, rock, or snow down a hill or mountain side; as, a land slide, or a snow slide; also, the track of bare rock left by a land slide.
(n.) A small dislocation in beds of rock along a line of fissure.
(n.) A grace consisting of two or more small notes moving by conjoint degrees, and leading to a principal note either above or below.
(n.) An apparatus in the trumpet and trombone by which the sounding tube is lengthened and shortened so as to produce the tones between the fundamental and its harmonics.
(n.) A sound which, by a gradual change in the position of the vocal organs, passes imperceptibly into another sound.
(n.) Same as Guide bar, under Guide.
(n.) A slide valve.
Example Sentences:
(1) (4) Despite the removal of the cruciate ligaments and capsulo-ligamentous slide, no significant residual instability was found in either plane.
(2) The Pakistan government, led as usual by a general, was anxious to project the army's role as bringers of order to a country that was sliding quickly towards civil war.
(3) For routine use, 50 mul of 12% BTV SRBC, 0.1 ml of a spleen cell suspension, and 0.5 ml of 0.5% agarose in a balanced salt solution were mixed and plated on a microscope slide precoated with 0.1% aqueous agarose.
(4) That piece was placed on the slide and embedded with a mixture of agar and antiserum.
(5) Slides and short films were used in primary and secondary schools.
(6) One cytotechnologist screened the slides for all occurrences of a standard set of classic cytopathologic signs.
(7) It was the ease with which minor debt could slide into a tangle of hunger and despair.
(8) Slide smears revealed the rosette-shaped pattern characteristic of malignant neuroblastoma, many of which were fitted with dendritic plasmatic processes.
(9) In the 55th minute Ivanovic dispossessed Bale and beat Ricketts before sliding the ball across to give Tadic a simple finish.
(10) Perfused or immersion-fixed epithalamic tissues, sectioned, and mounted on glass slides were processed through the avidin-biotin immunofluorescence method.
(11) The staining method consisted of sequential treatment of slides with crest serum, fluorosceinated goat-antihuman and swine-antigoat antibodies, and propidium iodide.
(12) These additional cues involved different sensations in effort of the perfomed movement sliding heavy object vs. sliding light object (sS test), as well as different sensations in pattern of movement and joints - sliding vs. lifting of an object (SL test).
(13) Portugal's slide towards a Greek-style second bailout accelerated after its principal private lenders indicated that they were growing weary of assurances from Lisbon that it could get on top of the country's debts.
(14) Children as young as 18 months start by sliding on tiny skis in soft supple boots, while over-threes have more formal lessons in the snow playground.
(15) In addition to the cytologic characteristics, the possibility of detecting muscle antigens as markers for these embryonal small cells, even in previously stained slides, provides a successful method for defining the specific type of sarcoma.
(16) Tissue slides obtained at autopsy from 80 cases with AIDS were studied immunhistochemically for infection with Toxoplasma gondii.
(17) These results confirmed that 'punctuated' labeling was not an artefact due to a distortion of the cell's shape by having been dried on glass slides.
(18) The proportion of persons with P. malariae in this sample population, as determined by slide examination, appears to be the greatest ever reported for any area before the introduction of control measures.
(19) The new slide latex particle agglutination test gave better results, with 100% specificity, 80% sensitivity, high predictive values (greater than or equal to 91%), and an overall diagnostic efficiency of 93%.
(20) No, Did they invent sliding fingers across substances?