(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.
Pry
Definition:
(n.) A lever; also, leverage.
(v. t.) To raise or move, or attempt to raise or move, with a pry or lever; to prize.
(v. i.) To peep narrowly; to gaze; to inspect closely; to attempt to discover something by a scrutinizing curiosity; -- often implying reproach.
(n.) Curious inspection; impertinent peeping.
Example Sentences:
(1) Affinity-purified human placental ribonuclease inhibitor (PRI) was digested by trypsin.
(2) I used to tease him with the suggestion he had chosen me as walking companion because I had no mathematics at all and so he was safe from prying questions, but in fact now and then he did used to tell me about what he was doing – and how clear it all seemed when he spoke!
(3) Human placental ribonuclease inhibitor (PRI), a 50-kDa tight-binding inhibitor of angiogenin and pancreatic ribonuclease, consists predominantly of 7 internal repeats, each 57 residues long.
(4) Deep in the taiga, the Mordovian colonies are well away from prying eyes.
(5) Peña Nieto’s Institutional Revolutionary Party, or PRI, suffered a severe reverse in regional elections last month as voters punished the party for failing to crack down on corruption, impunity and brutal drug gang violence.
(6) Open the phone just enough to reveal the metal bracket covering the home button cable, remove it with tweezers, and pry the connector up from its socket.
(7) Similarly, the development of ventriculomegaly may depend upon cerebral elastic properties besides the pri mary disturbance of CSF dynamics.
(8) Before Vicente Fox became president in 2000, the Institutional Revolutionary party (PRI) had won every election since 1929.
(9) Thirty DES-exposed women aged 17-30 years and 30 control women with a history of abnormal Pap smear findings were interviewed with the SADS-L and completed the SCL-90-R and the PRI-Q.
(10) However, the PrI sera of these horses showed reactivity at various intensities with one to seven of the component antigens.
(11) The pantographic reproducibility index (PRI) has been developed to quantitate incoordinated mandibular movements; one of the signs and symptoms of TMJ dysfunction.
(12) Data from this study suggest that the MGPQ-PRI might be useful for the assessment of fibromyalgic pain in a clinical setting and during follow-up of the disease.
(13) The arrangement of overlapping genes at the pri locus of IncP alpha plasmids also appears to be present in the IncP beta group.
(14) So pry between the boards of the housing recovery and the termites start crawling out.
(15) The delay in the postcastration increase in plasma level of LH in the OVX hens was not associated with anorexia of incubating hens, since plasma levels of LH were not affected by force-feeding unless plasma levels of PRI were suppressed by nest deprivation.
(16) Some people are also afraid that prying eyes might spot Prep, which can also be used for HIV treatment, in a person’s medicine cabinet and assume that they are positive.
(17) Alec says 2,000 legislators and business lobbyists are expected to attend, participating in numerous meetings where new model bills will be privately crafted – away from the prying eyes of the media .
(18) Compared with the control group, statistically significant increases of SCE and HFC, as well as decreased cell kinetics (PRI) were observed for both occupationally and environmentally exposed groups.
(19) Banks have far more to fear from the prying of other financial companies than they do from any data provider.
(20) The stability of the angiogenin-PRI complex was assessed by cation-exchange HPLC quantitation of free angiogenin.