(n.) A nonconductor of electricity, as amber, glass, resin, etc., employed to excite or accumulate electricity.
Example Sentences:
(1) The dependence of fluorescence polarization of stained nerve fibres on the angle between the fibre axis and electrical vector of exciting light (azimuth characteristics) has been considered.
(2) Cellular radial expansion was apparently unaffected by exposure to electric fields.
(3) The purpose of the present study was to analyze the effects of cromakalim (BRL 34915), a potent drug from a new class of drugs characterized as "K+ channel openers", on the electrical activity of human skeletal muscle.
(4) Noradrenaline (NA) was released from sympathetic nerve endings in the tissue by electrical stimulation of the mesenteric nerves or by the indirect sympathomimetic agent tyramine.
(5) The automatic half of both the motor which advances the trepan as well as the second motor which rotates the trepan is triggered by the sudden change in electrical resistance between the trepan and the patient's internal body fluid, at the final stage of penetration.
(6) All of the serotonergic antagonists studied had additional effects on the response of the coronary artery to electrical stimulation or to norepinephrine.
(7) Hyperosmolar buffer slightly increased the sensitivity and maximal response to methacholine as well as the cholinergic twitch to electric field stimulation.
(8) The electrical stimulation of the tail associated to a restraint condition of the rat produces a significant increase of immunoreactive DYN in cervical, thoracic and lumbar segments of spinal cord, therefore indicating a correlative, if not causal, relationship between the spinal dynorphinergic system and aversive stimuli.
(9) Electrical stimulation of afferent pathways at intensities just below threshold for eliciting action potentials resulted in a dramatic decrease in JSCP threshold.
(10) Average temperature changes observed were less than 1 degree C. The present study demonstrates that the electrically evoked response in mammalian brain can be altered by ultrasound in a non-thermal, non-cavitational mode, and that such effects are potentially reversible.
(11) Quantitative esophageal sensibility, therefore is concluded to be particularly suited to evaluation by electric stimulation.
(12) The new trabecular bone closely resembled that typically seen at electrically active implants.
(13) A second group was chronically implanted without electrical stimulation in one leg and implanted with cyclical electrical stimulation applied through the electrode in the other leg.
(14) The intermandibularis is probably present only in electric rays.
(15) Masking experiments are demonstrated for electrical frequency-modulated tone bursts from 1,000 to 10,000 cps and from 10,000 to 1,000 cps with superimposed clicks.
(16) Photograph: AP Reasons for wavering • State relies on coal-fired electricity • Poor prospects for wind power • Conservative Democrat • Represents conservative district in conservative state and was elected on narrow margins Campaign support from fossil fuel interests in 2008 • $93,743 G K Butterfield (North Carolina) GK Butterfield, North Carolina.
(17) It is suggested that intra-endothelial conduction of electrical signals from capillaries to the resistance vessels may be involved in the local regulation of blood flow in the intact heart.
(18) In the anesthetized cat, the posterior canal nerve (PCN) was stimulated by electric pulses and synaptic responses were recorded intracellularly in the three antagonistic pairs of extraocular motoneurons.
(19) Among the epileptic patients investigated by the stereotactic E. E. G. (Talairach) whose electrodes were introduced at or around the auditory cortex (Area 41, 42), the topography of the auditory responses by the electrical bipolar stimulation and that of the auditory evoked potential by the bilateral click sound stimulation were studied in relation to the ac--pc line (Talairach).
(20) It is suggested that contractile responses to electrical stimulation in isolated sheep urethral smooth muscle are mediated by the sympathetic nervous system, mainly through release of noradrenaline stimulating postjunctional alpha 1-adrenoceptors.
Shunt
Definition:
(v. t.) To shun; to move from.
(v. t.) To cause to move suddenly; to give a sudden start to; to shove.
(v. t.) To turn off to one side; especially, to turn off, as a grain or a car upon a side track; to switch off; to shift.
(v. t.) To provide with a shunt; as, to shunt a galvanometer.
(v. i.) To go aside; to turn off.
(v. t.) A turning off to a side or short track, that the principal track may be left free.
(v. t.) A conducting circuit joining two points in a conductor, or the terminals of a galvanometer or dynamo, so as to form a parallel or derived circuit through which a portion of the current may pass, for the purpose of regulating the amount passing in the main circuit.
(v. t.) The shifting of the studs on a projectile from the deep to the shallow sides of the grooves in its discharge from a shunt gun.
Example Sentences:
(1) One patient with a large fistula angiographically had no oximetric evidence of shunt at cardiac catheterization.
(2) However, survival was closely related to the severity of the illness at the time of randomization and was not altered by shunting.
(3) Results showed significantly higher cardiac output in infants with grade III shunting than in infants with grade 0 and grade I shunting.
(4) Direct limiting effects of hypothermia on tissue O2 delivery and muscle oxidative metabolism as well as vasoconstriction and arteriovenous shunting associated with CPB procedures are likely to be involved in the above mentioned alterations of cell metabolism.
(5) Eighty interposition mesocaval shunts, using a knitted Dacron large diameter prosthesis, have been performed during the past five and one-half years.
(6) An infant with a Sturge-Weber variant syndrome developed progressive megalencephaly and eventual hydrocephalus, which required shunting.
(7) The use of 100% oxygen to calculate intrapulmonary shunting in patients on PEEP is misleading in both physiological and methodological terms.
(8) Airway closure (CV), functional residual capacity (FRC) and the distribution of inspired gas (nitrogen washout delay percentage, NWOD %) and arterial oxygen tension (PaO2) was measured by standard electrodes in eight extremely obese patients before and after weight loss (mean weights 142 and 94 kg, respectively) following intestinal shunt operation.
(9) Quantitative autoradiography was used to assess the densities of gamma-aminobutyric acid (GABAA) receptors in the brains of rats with a portacaval end-to-side shunt (PCA).
(10) We currently recommend a standard portacaval shunt or a devascularisation and transection procedure for the rare failures of sclerotherapy.
(11) The other 7 cysts required the subsequent placement of a cystoperitoneal shunt.
(12) It is suggested that the benefit of anticoagulant therapy is in transferring shunt problems from the distal to the proximal catheter, obstruction of which is less dangerous and more easily treated.
(13) On angiography portal-hepatic venous shunt was observed in one case.
(14) The technique described involves placement of an intraluminal shunt and resection of the involved caval wall with reconstruction using autologous pericardium.
(15) Shunt-related morbidity occurred in all patients and consisted of mechanical complications in four patients and bacteremia in one patient.
(16) Mycobacterium fortuitum is a rare cause of central nervous system infection; however, shunt infection caused by this organism has not been reported.
(17) Thus, these data establish a range of normal for the indocyanine green technique of detecting and measuring intracardiac left-to-right shunting.
(18) This was documented by angiography and during surgery when an aortic-pulmonary shunt was done.
(19) Two new cases of megaduodenum by aortomesenteric shunt in young adults are presented.
(20) In the other cases cavernosogram revealed normal venous return and thrombosis of the shunt.