(n.) A portion of a curved line; as, the arc of a circle or of an ellipse.
(n.) A curvature in the shape of a circular arc or an arch; as, the colored arc (the rainbow); the arc of Hadley's quadrant.
(n.) An arch.
(n.) The apparent arc described, above or below the horizon, by the sun or other celestial body. The diurnal arc is described during the daytime, the nocturnal arc during the night.
Example Sentences:
(1) The scleral arc length is slightly longer than the chord length (caliper setting).
(2) These later results suggest that dopamine agonists increase sensorimotor reactivity measured with acoustic startle by acting on sensory rather than motor parts of the reflex arc.
(3) Thus, the decreased hyperemic response after arrest suggests a reduced energetic debt with CSC compared with ARC and may indicate superior myocardial protection with CSC.
(4) By contrast, patients with urological symptoms had a significantly increased prevalence of spina bifida occulta at S1 and S2 and a higher level of opening of posterior sacral arcs.
(5) The peptide-TR-FIA is specific, as assessed by testing HIV-1 positive sera which included samples from AIDS, ARC patients and HIV-positive drug users.
(6) In a multivariate regression model noncompliance was significantly associated with the absence of AIDS or ARC (p less than 0.001), homelessness (p less than 0.005), and alcoholism (p less than 0.05).
(7) This protein did show an immunoglobulin arc on immunoelectrophoresis against abovementioned antibody and against rabbit anti mouse Ig serum.
(8) Looping the tail of a "g", flicking the line up from the end of an "m", arcing it over an "a" or an "o".
(9) In contrast, the relative percentage of polyunsaturated fatty acids was 85% greater than normal (P less than 0.001) in ARC and 100% greater than normal (P less than 0.001) in AIDS-I patients.
(10) Average range of motion was from 17.1 degrees to 44.3 degrees, with an arc of 27.2 degrees.
(11) A subsequent S3 encountered further nonuniformly shortened refractoriness (normal areas had shortened refractoriness greater than ischemic areas) and the arc of block was lengthened.
(12) The technique consists of 3 pairs of non-coplanar arcs using a 4 MV accelerator.
(13) Experiments following depletion of norepinephrine suggest that the central part of the baroreceptor reflex arc does not contain adrenergic neurons.
(14) High concentrations of SST inhibited virus replication in 80% of LC from ARC patients, but were completely ineffective in LC from AIDS patients.
(15) In our series of 46 patients with Ad35 isolates, 36 had AIDS or AIDS-related complex (ARC), seven patients were immunocompromised because of other diseases, and three patients were "normal."
(16) The possibility of contaminating the breathing air zone with hazardous substances in manual and semi-automated welding increases with the intensity of their formation in the arc zone.
(17) Optical differences between a mercury arc lamp and a laser-illuminated flow cytometer are compared.
(18) In this report, we have compared homogeneous yeast (Saccharomyces cerevisiae) pyruvate kinase to enzyme from cell-free extracts in several different ways: 1) isoelectric focusing of cell-free extracts indicates one peak of pyruvate kinase activity whose isoelectric point is the same as that of the pure enzyme; 2) antibody prepared to the pure enzyme produces a single, fused precipitin line against enzyme in the cell-free extract and pure enzyme; 3) immunoelectrophoresis of cell-free extract produces one precipitin arc which has the same mobility as that of the pure enzyme; and 4) immunoprecipitation of the pure enzyme from cell-free extract with subsequent solubilization in 1% sodium dodecyl sulfate and electrophoresis on sodium dodecyl sulfate-polyacrylamide gels produces a single protein band attributable to pyruvate kinase which co-migrates with the purified enzyme.
(19) There were no significant differences in ARn concentrations in eight other nuclei that were examined for significant sex differences in ARc levels observed under these experimental conditions.
(20) Cells from subjects with ARC had a selective antigen recognition defect independent of the number of CD4+ lymphocytes.
Arch
Definition:
(n.) Any part of a curved line.
(n.) Usually a curved member made up of separate wedge-shaped solids, with the joints between them disposed in the direction of the radii of the curve; used to support the wall or other weight above an opening. In this sense arches are segmental, round (i. e., semicircular), or pointed.
(n.) A flat arch is a member constructed of stones cut into wedges or other shapes so as to support each other without rising in a curve.
(n.) Any place covered by an arch; an archway; as, to pass into the arch of a bridge.
(n.) Any curvature in the form of an arch; as, the arch of the aorta.
(v. t.) To cover with an arch or arches.
(v. t.) To form or bend into the shape of an arch.
(v. i.) To form into an arch; to curve.
(a.) Chief; eminent; greatest; principal.
(a.) Cunning or sly; sportively mischievous; roguish; as, an arch look, word, lad.
(n.) A chief.
Example Sentences:
(1) Excessive lip protrusion was eliminated, and arch leveled.
(2) The temperature increased from the anterior to the posterior region on both buccal and lingual sides of both arches.
(3) Administration of one of the precursors of noradrenaline l-DOPA not only prevented the decrease in tissue noradrenaline content in myocardium, but restored completely its reserves, exhausted by electrostimulation of the aortic arch.
(4) A forty-four-year-old woman with Takayasu's arteritis and involvement of the aortic arch and its main branches complained of precordial pain on effort.
(5) Koons provoked a bigger stir with the news that he would be showing with gallery owner David Zwirner next year in an apparent defection from Zwirner's arch-rival Larry Gagosian, the world's most powerful art dealer.
(6) Global 'abnormality', hunching (rigid arching of back), hindlimb abduction, forepaw myoclonus, stereotyped lateral head movements, backing, and immobility occurred significantly only in drug-treated rats.
(7) Between March 1986 and September 1988, 38 patients underwent extended aortic resection (aortic valve, ascending aorta, and arch) for acute type-A aortic dissection with aortic valve insufficiency; deep hypothermia and circulatory arrest were used.
(8) Other associated malformations were an interrupted aortic arch and an atrial septal defect.
(9) The sucker, covered with basal lamina, has a constant volume; its layer of muscles resists deformation and supports the stability of the arch.
(10) In the anaesthetized dog the carotid sinuses and aortic arch were isolated from the circulation and separately perfused with blood by a method which enabled the mean pressure, pulse pressure and pulse frequency to be varied independently in each vasosensory area.
(11) The data presented in this paper confirm the need for stimulation of the pudendal reflex arch to achieve physiological conditions.
(12) This article describes the application and efficacy of the lipbumper used in the lower arch.
(13) Adjustment of posterior arch width and dental alignment, using semi-rapid maxillary expansion by means of an upper removable appliance, to co-ordinate the anticipated positions for the arches.
(14) The most commonly associated lesions were ventricular septal defect (50%), hypoplastic aortic arch (45%), patent ductus arteriosus (41%), transposition of great arteries (22.7%) and other intracardiac lesions comprised 30%.
(15) This malformation was demonstrated in alcian-blue- and alizarin-red-stained fetal skeletons by measurements of the distance between the cartilaginous ends of each vertebral arch.
(16) No correlation was found between aortic arch size and the size of the left-to-right shunt in cases of DAP.
(17) After 48 hours in culture, all specimens were examined at 6x magnification for defects in the facial arches, head fold, and neural tube fusion.
(18) Narrow paths weave among moss-covered ornate arches and towers on the 80-acre site, and huge abstract sculptures and staircases lead nowhere, but up to the sky.
(19) Although different dimensions of the face and head and the upper dental arch width were found to be significantly correlated in children with normal occlusion, this relationship is not found to be strong enough in children with different categories of malocclusion.
(20) We suggest that incomplete development of the bones of the dorsal neural arches of the upper sacrum may be a marker of incomplete neurogenesis of the sacral nerves.