(a.) Pertaining to, governed by, or in accordance with, mechanics, or the laws of motion; pertaining to the quantitative relations of force and matter, as distinguished from mental, vital, chemical, etc.; as, mechanical principles; a mechanical theory; mechanical deposits.
(a.) Of or pertaining to a machine or to machinery or tools; made or formed by a machine or with tools; as, mechanical precision; mechanical products.
(a.) Done as if by a machine; uninfluenced by will or emotion; proceeding automatically, or by habit, without special intention or reflection; as, mechanical singing; mechanical verses; mechanical service.
(a.) Made and operated by interaction of forces without a directing intelligence; as, a mechanical universe.
(a.) Obtained by trial, by measurements, etc.; approximate; empirical. See the 2d Note under Geometric.
(n.) A mechanic.
Example Sentences:
(1) Such a signal must be due to a small ferromagnetic crystal formed when the nerve is subjected to pressure, such as that due to mechanical injury.
(2) These data suggest that the hybrid is formed by the same mechanism in the absence and presence of the urea step.
(3) Some common eye movement deficits, and concepts such as 'the neural integrator' and the 'velocity storage mechanism', for which anatomical substrates are still sought, are introduced.
(4) We have investigated the effect of methimazole (MMI) on cell-mediated immunity and ascertained the mechanisms of immunosuppression produced by the drug.
(5) One hour after direct mechanical cardiomassage (DMCM) a moderately pronounced edema of the intercellular spaces in the basal compartment of the seminiferous epithelium, normal content of lactate and succinate dehydrogenases, and a certain decrease in the activity of glucose-6-phosphate dehydrogenases and NAD- and NADP-diaphorases were noted.
(6) It is concluded that amlodipine reduces myocardial ischemic injury by mechanism(s) that may involve a reduction in myocardial oxygen demand as well as by positively influencing transmembrane Ca2+ fluxes during ischemia and reperfusion.
(7) Models able to describe the events of cellular growth and division and the dynamics of cell populations are useful for the understanding of functional control mechanisms and for the theoretical support for automated analysis of flow cytometric data and of cell volume distributions.
(8) The following is a brief review of the history, mechanism of action, and potential adverse effects of neuromuscular blockers.
(9) However, the mechanism of the inhibitory action is still somewhat uncertain.
(10) It also provides mechanical support for the collateral ligaments during valgus or varus stress of the knee.
(11) We studied the hemodynamic changes caused by bronchoscopy under LA in mechanically ventilated patients and the effect of LA on the endoscopic decline in arterial pO2.
(12) Together these observations suggest that cytotactin is an endogenous cell surface modulatory protein and provide a possible mechanism whereby cytotactin may contribute to pattern formation during development, regeneration, tumorigenesis, and wound healing.
(13) Dilutional studies comparing the mechanism of inhibition of monoamine oxidase produced by Gerovital H3 and by ipronizid demonstrated that Gerovital H3 was a reversible inhibitor of monoamine oxidase.
(14) To investigate the mechanism of enhanced responsiveness of cholesterol-enriched human platelets, we compared stimulation by surface-membrane-receptor (thrombin) and post-receptor (AlF4-) G-protein-directed pathways.
(15) Based on our results, we propose the following hypotheses for the neurochemical mechanisms of motion sickness: (1) the histaminergic neuron system is involved in the signs and symptoms of motion sickness, including vomiting; (2) the acetylcholinergic neuron system is involved in the processes of habituation to motion sickness, including neural store mechanisms; and (3) the catecholaminergic neuron system in the brain stem is not related to the development of motion sickness.
(16) Thus, mechanical restitution of the ventricle is a dynamic process that can be assessed using an elastance-based approach in the in situ heart.
(17) The mechanism by which pertussis toxin (PT) breaks the unresponsiveness of delayed-type hypersensitivity (DTH) to sheep red blood cells (SRBC) was examined in B10 mice.
(18) This suggests that a physiological mechanism exists which can increase the barrier pressure to gastrooesophageal reflux during periods of active secretion of the stomach, as occurs in digestion.
(19) The macrophage-derived product, interleukin 1 (IL 1) is thought to play an important regulatory role in the proliferation of T lymphocytes; however, its mechanism of action is unknown.
(20) Adding a layer of private pensions, it was thought, does not involve Government mechanisms and keeps the money in the private sector.
Pneumatics
Definition:
(n.) That branch of science which treats of the mechanical properties of air and other elastic fluids, as of their weight, pressure, elasticity, etc. See Mechanics.
(n.) The scientific study or knowledge of spiritual beings and their relations to God, angels, and men.
Example Sentences:
(1) and respirated with a pneumatic respiration pump and the parameters blood pressure, pH and blood gases (pO2, pCO2) were continuously recorded.
(2) A compensator connected to the section consisting of the pump-main line-operating member and including a pneumatic resistance and a flaxid non-elastic container enables it in combination with the feedback to maintain through the volumetric displacement of the gas, or changing the pump diaphragm position, the stability of the gas volume in the pneumatic transmission element of the assisted circulation apparatus.
(3) Adjunctive usage of elastic stockings and intermittent compression pneumatic boots in the perioperative period was helpful in controlling leg swelling and promoting wound healing.
(4) Impulses sufficiently large to stun adult sheep, with a non-penetrating impact head, were produced from an adapted Hantover pneumatic cattle stunner.
(5) To control for the lower baseline BP that was present in rats with A-V fistula, a second series of studies was performed in which renal perfusion pressure was reduced in normal rats to 110 mm Hg with a servocontrolled pneumatic cuff.
(6) Long-term synchronized left ventricular bypass has been performed in calves using pneumatically powered pumps having a smooth lining fabricated of segmented polyurethane.
(7) We report what we believe to be the first patient in whom an esophagram immediately after a routine, uncomplicated pneumatic dilation revealed complete esophageal obstruction.
(8) Pneumatic retinopexy is a recent innovation in the treatment of uncomplicated retinal detachments due to a superior retinal break extending for 30 degrees or less.
(9) A common although infrequently recognized complication associated with the use of a pneumatic tourniquet is profuse bleeding from the wound after deflation of the tourniquet.
(10) We quantified the variability in extent of sinus pneumatization (a measure of sinus development) in infants and young children.
(11) Around the time of puberty the pneumatization usually penetrates up to the spheno-occipital synchondrosis.
(12) Eight pneumatic vibrating power hand tools, representing tools commonly used in an automobile assembly plant, were studied.
(13) Intermittent pneumatic compression was used for edema treatment.
(14) Most devices were pneumatically ("breath") controlled.
(15) After 4 minutes of ventricular fibrillation CPR was performed with the use of a pneumatic piston compressor.
(16) Rhinoliquorrhoea is the leading symptome of an osteodural defect of the base of the skull, the pneumatic system of the rhinobasis being affected.
(17) We believe that pneumatic dilatation should be considered in patients with systemic sclerosis and severe dysphagia where reflux oesophagitis is not apparent.
(18) On the ground of a research into the influence produced by the administered doses and the density of the aerosol on the therapeutic activity the expediency of employing aerosol generators based upon pneumatic atomization by using the principle of ejecting an additional volume of air, as units yielding a substantial curative effect, is demonstrated.
(19) Calibrated scleral suction cups pneumatically connected to a sensitive transducer are used to provide well reproducible ocular pulse recordings.
(20) The study does not answer the question of whether orbital contour will be maintained on a long-term basis adjacent to a pneumatized sinus following reconstruction with a bioabsorbable implant.