(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.
Overhead
Definition:
(adv.) Aloft; above; in or attached to the ceiling or roof; in the story or upon the floor above; in the zenith.
Example Sentences:
(1) As May delivered her statement in the chamber, police helicopters hovered overhead and a police cordon remained in place around Westminster, but MPs from across the political spectrum were determined to show that they were continuing with business as usual.
(2) Overhead wire problems were causing delays on the east coast mainline into London King's Cross.
(3) Jesús Navas played a one-two with Touré down the right and from his awkward cross the England squad goalkeeper fumbled the ball inside his six-yard area from where Fernando scored with an overhead kick as dextrous as it was surprising.
(4) As fighter jets screamed overhead and tanks churned up the sand, it looked and sounded like the violent protests sweeping the Middle East had spread to the wealthy emirate of Abu Dhabi.
(5) A population based case control study of adult haematological malignancy and distance from, and magnetic fields associated with, overhead (OH) power lines has been carried out in the North West and Yorkshire regions of England.
(6) His body was found on the pavement of Portman Avenue, in East Sheen, an affluent west London suburb, shortly before 7.45am on 9 September last year, just after flight BA76 from Luanda, the Angolan capital, passed overhead.
(7) It cites a battery of reasons, including removing the market distortion and overheads involved in trying to set a price that covers an agency's costs and encouraging the uptake of information and the beneficial innovation that will result.
(8) I used to hear Canada geese sail overhead to a Stoke Newington reservoir behind where I lodged in my London days.
(9) The total lender's unit cost per request received, including direct labor, materials, fringe benefits, and overhead, was $1.526 for originals mailed postpaid by lender, and $1.534 for photocopies mailed.
(10) A Guardian analysis has found: A Luxembourg unit of Shire, the FTSE-100 drug firm behind attention deficit pill Adderall, received more than $1.9bn in interest income from other group companies in the last five years, paying corporation tax of less than $2m over four of the years despite minimal overheads.
(11) Nadal takes the advantage with two overhead smashes - one returned, the other not.
(12) Military helicopters hovered overhead as supporters and opponents of the Muslim Brotherhood clashed in the streets below.
(13) Canalization and drainage of rivers, streams and marches since the beginning of malaria outbreak, widespread use of pesticides during the antimalaria spraying campaigns, only overhead irrigation, permanent maintenance of the lined canal system, induced many ecological constraints to possible snail habitats.
(14) Yaya Toure picked him out with a forensic, scooped pass that he played with the outside of his right boot and Bony watched it drop before trying to score with an overhead kick.
(15) This analytical system has the advantage of providing data on distribution of element concentration in a given specimen in overhead view without involving destruction of the tissue architecture.
(16) Charities which play this game – especially those which go to such pains to show how little they spend on “overheads” – are complicit in the perpetuation of an idea which is harming the sector and ultimately harms society.
(17) For repositioning we used a modified overhead-extension (Extensionsreposition).
(18) At 6pm it sounds like a war zone outside the office: you can hear nothing but sirens and the almost continuous drone of helicopters overhead.
(19) I won’t forget Dean Ashton’s overhead kick , Adrián’s goal or singing Paolo Di Canio’s name for the last time at this special stadium.
(20) London Liverpool Street and lines to East Anglia will be affected for even longer, from December 24 until January 2, with rail diversions and the replacement buses in place to allow for work on signalling, track and overhead power lines.