(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.
Toggle
Definition:
(n.) A wooden pin tapering toward both ends with a groove around its middle, fixed transversely in the eye of a rope to be secured to any other loop or bight or ring; a kind of button or frog capable of being readily engaged and disengaged for temporary purposes.
(n.) Two rods or plates connected by a toggle joint.
Example Sentences:
(1) Animals were tested in a toggle-floor box apparatus, 30 min after saline or oxotremorine treatment (ip).
(2) Locomotor activity of CD-1 mice, tested in an unfamiliar environment (toggle-floor box), was increased either by a subhypnotic dose (20 mg kg-1) of pentobarbitone or after recovery from pentobarbitone-induced (50 mg kg-1) anaesthesia.
(3) A new toggle latch has provided nearly a year of failure-free operation on the bench, without measurable wear.
(4) Interleaved sagittal sections are broken into two groups, one on each side of the head, and the MR receiver is toggled between the two coils.
(5) There are Google satellite and street maps networked to the city’s information systems, which staff can toggle for close-ups and additional data overlays.
(6) Aligner is an editor for the manual alignment of up to 100 sequences that toggles between display of matched characters and normal unmatched sequences.
(7) Just on Android Facebook Twitter Pinterest The Android Quick Settings panel varies in style, but contains toggles for Wi-Fi, Bluetooth and Airplane mode.
(8) Two distal bolts reduce the toggle of the nail in the femoral shaft.
(9) When subjected to pull-out, toggle, and compression testing, in a cancellous bone calf model, it was demonstrated to be biomechanically inferior to the 4.0 mm ASIF cancellous screw.
(10) In a first set of experiments, which was carried out with the toggle-floor box, U-50,488 depressed locomotor activity in both strains.
(11) One potential complication of blind abomasopexy techniques, including the toggle-pin technique, is the possibility of creating pyloric outflow obstruction.
(12) Chiropractic mechanical force, manually assisted short lever adjusting is a spinoff of the specific toggle recoil adjusting techniques, which were based on the original chiropractic subluxation theory propounded by Daniel David Palmer in 1895.
(13) Skull roentgenograms showed the toggle switch, and the patient was referred to our institution for definitive care.
(14) The external coil sends an electromagnetic pulse to the implant, triggering a CMOS "D" flip-flop connected as a toggle switch--its state is toggled on or off upon receiving the external pulse.
(15) Some Android phones also have a Sync toggle in Quick Settings, which disables Sync for all accounts on the device.
(16) This is achieved by using a relatively small toggle and drills with small diameter.
(17) A toggle switch penetrated the anterior and posterior tables of his frontal sinus and lodged in the frontal lobe.
(18) On Android, use the screen brightness toggle in Quick Settings (swipe down from the top to bring down the Notification Shade and tap the top right had quick settings toggle if needed) the brightness slider under display settings.
(19) He said he had previously thought that "trade dress" should not be patentable – but that my "opinion toggled" [in favour] as he considered the evidence.
(20) The present experiments were aimed at comparing morphine effects in CD-1 mice under three conditions, namely, Varimex apparatus (VAR), toggle floor box (TOGGLE), videotape recording (VIDEO) in a home cage environment.