What's the difference between escapement and lever?

Escapement


Definition:

  • (n.) The act of escaping; escape.
  • (n.) Way of escape; vent.
  • (n.) The contrivance in a timepiece which connects the train of wheel work with the pendulum or balance, giving to the latter the impulse by which it is kept in vibration; -- so called because it allows a tooth to escape from a pallet at each vibration.

Example Sentences:

  • (1) Cancer of the mouth, pharynx and esophagus has decreased in all Japanese migrants, but the decrease is much greater among Okinawan migrants, suggesting they have escaped exposure to risk factors peculiar to the Okinawan environment.
  • (2) Like many families, we’ve had to move to escape the fighting.
  • (3) At follow-up, the initial presence of signs of repression was significantly more common in such initially nonregressive patients as had escaped a later psychotic breakdown.
  • (4) The proliferation of this cell type may represent an escape from the senescence pathway and progression to immortal tumor cells.
  • (5) The presence of the positive-off diagonal of the second-order kernel of respiratory control of heart rate is an indication of an escape-like phenomenon in the system.
  • (6) If you’ve escaped the impact of cuts so far , consider yourself lucky, but don’t think that you won’t be affected after the next tranche hits.
  • (7) The plan was to provide those survivors with escape routes while also giving law enforcement an entry point.
  • (8) He said: “Almost daily we hear from parents desperate to escape the single cramped room of a B&B or hostel that they find themselves struggling to raise their children in.
  • (9) Only two of the 31 commandos escaped; the rest were tracked down and killed.
  • (10) It is deeply moving hearing him talk now – as if from the grave – about a Christmas Day when he felt so frustrated and cut-off from his family that he had to go into the office to escape.
  • (11) Since chromatin particles containing DNA the size of 125 kbp can electroelute, we conclude that the polymerizing complex is attached to a nucleoskeleton which is too large to escape.
  • (12) If such a system were rolled out nationally, central government could escape political pressure to ringfence NHS funding.
  • (13) New insights into the biochemical and cell-biological alterations occurring in articular cartilage during the early phase of osteoarthrosis (OA) have been gained in the past decade by analysing experimentally induced osteoarthrosis in animals, mostly dogs and rabbits, while early phases of OA in humans so far have escaped diagnostic evaluation.
  • (14) After 2 weeks of chronic exposure to 75 mM EtOH, crayfish showed behavioral tolerance as measured by a decrease in righting time and an increase in tail-flip escape behavior to control levels.
  • (15) The researchers' own knowledge of street language and drug behavior has enabled them to capture information that would escape most observers and even some participants.
  • (16) Animals continued to display escape responses after removal of eyestalks and antennae.
  • (17) Intracerebral injection of the GABAA agonists muscimol (1 nmol), isoguvacine (1 nmol) or THIP (1, 2 and 4 nmol) in rats with chemitrodes implanted in the dorsal midbrain central grey raised the threshold electrical current for inducing escape behaviour.
  • (18) Rats were tested on either escape or avoidance learning at 80 days of age after chemical sympathectomy at birth or 40 or 80 days of age.
  • (19) The fraction of ligands that initially escaped into the solvent decreased when the temperature was lowered, and the Arrhenius plots for the rebinding rate coefficients were found to deviate significantly from linearity.
  • (20) When Hayley Cropper swallows poison on Coronation Street on Monday night, taking her own life to escape inoperable pancreatic cancer, with her beloved husband, Roy, in pieces at her bedside, it will be the end of a character who, thanks to Hesmondhalgh's performance, has captivated and challenged British TV viewers for 16 years.

Lever


Definition:

  • (a.) More agreeable; more pleasing.
  • (adv.) Rather.
  • (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.

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