(a.) Of or pertaining to one of the poles of the earth, or of a sphere; situated near, or proceeding from, one of the poles; as, polar regions; polar seas; polar winds.
(a.) Of or pertaining to the magnetic pole, or to the point to which the magnetic needle is directed.
(a.) Pertaining to, reckoned from, or having a common radiating point; as, polar coordinates.
(n.) The right line drawn through the two points of contact of the two tangents drawn from a given point to a given conic section. The given point is called the pole of the line. If the given point lies within the curve so that the two tangents become imaginary, there is still a real polar line which does not meet the curve, but which possesses other properties of the polar. Thus the focus and directrix are pole and polar. There are also poles and polar curves to curves of higher degree than the second, and poles and polar planes to surfaces of the second degree.
Example Sentences:
(1) Using monoclonal antibodies directed against the plasma membrane of Madin-Darby canine kidney (MDCK) cells, we demonstrated previously that a glycoprotein with an Mr = 23,000 (gp23) had a non-polarized cell surface distribution and was observed on both the apical and basolateral membranes (Ojakian, G. K., Romain, R. E., and Herz, R. E. (1987) Am.
(2) It was found that linear extrapolations of log k' versus ET(30) plots to the polarity of unmodified aqueous mobile phase gave a more reliable value of log k'w than linear regressions of log k' versus volume percent.
(3) 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.
(4) A triphasic pattern was evident for the neck moments including a small phase which represented a seating of the headform on the nodding blocks of the uppermost ATD neck segment, and two larger phases of opposite polarity which represented the motion of the head relative to the trunk during the first 350 ms after impact.
(5) The remainder of the radioactivity appeared chromatographically just prior to the bisantrene peak, indicating that compounds more polar than the parent were present as transformation products.
(6) In the triploids, the 40 female chromosomes present (mouse, n = 20) were derived from a single diploid pronucleus formed after the extrusion of a first polar body, and following the monospermic fertilization of primary oocytes.
(7) Genetic regulation of the ilvGMEDA cluster involves attenuation, internal promoters, internal Rho-dependent termination sites, a site of polarity in the ilvG pseudogene of the wild-type organism, and autoregulation by the ilvA gene product, the biosynthetic L-threonine deaminase.
(8) These transcriptional experiments provide in vitro confirmation for the latent rho-dependent termination site model of transcriptional polarity.
(9) I evaluated use of the fluorescence polarization technique to measure neocarzinostatin, a proteinaceous antitumor antibiotic, and its antibody, in serum.
(10) During photoirradiation, both in vivo and in vitro, the serum polar (ZE)-bilirubin IX alpha concentration increased remarkably, but unbound-bilirubin values were not affected at all.
(11) Actin is present in chromosomal spindle fibres, with consistent polarity.
(12) The results are summarized in Table I, indicating that the ratio of formation of the cis product (2) increases as a solvent becomes more polar.
(13) No disorganization of the muscle structure was detected by polarized light and electron microscopic inspection.
(14) Subsequently, due to the rotation of the original polar axis in one hemisphere, the third cleavage plane through one half of the egg is transverse to the third cleavage plane through the other half.
(15) These activities define both the polarity of the anterior-posterior (AP) axis and the spatial domains of expression of the zygotic gap genes, which in turn control the subsequent steps in segmentation.
(16) It is released into the urine in large quantities and thus represents a potential candidate for a protein secreted in a polarized fashion from the apical plasma membrane of epithelial cells in vivo.
(17) The anodic polarization profiles are presented, as well as scanning electron micrographs and x-ray analysis of the corroded amalgam surfaces.
(18) Descending neurons have opposite structural polarity, arising in the brain and terminating in segmental regions of the fused ventral ganglia.
(19) Immunofluorescence and immunoelectronmicroscopy experiments demonstrated that while tight junctions demarcate PAS-O distribution in confluent cultures, apical polarity could be established at low culture densities when cells could not form tight junctions with neighboring cells.
(20) Halothane variably increased the current produced (and therefore the estimated oxygen tension) at all polarizing voltages in saline solution equilibrated with either N2 or air.
Pole
Definition:
(n.) A native or inhabitant of Poland; a Polander.
(n.) A long, slender piece of wood; a tall, slender piece of timber; the stem of a small tree whose branches have been removed; as, specifically: (a) A carriage pole, a wooden bar extending from the front axle of a carriage between the wheel horses, by which the carriage is guided and held back. (b) A flag pole, a pole on which a flag is supported. (c) A Maypole. See Maypole. (d) A barber's pole, a pole painted in stripes, used as a sign by barbers and hairdressers. (e) A pole on which climbing beans, hops, or other vines, are trained.
(n.) A measuring stick; also, a measure of length equal to 5/ yards, or a square measure equal to 30/ square yards; a rod; a perch.
(v. t.) To furnish with poles for support; as, to pole beans or hops.
(v. t.) To convey on poles; as, to pole hay into a barn.
(v. t.) To impel by a pole or poles, as a boat.
(v. t.) To stir, as molten glass, with a pole.
(n.) Either extremity of an axis of a sphere; especially, one of the extremities of the earth's axis; as, the north pole.
(n.) A point upon the surface of a sphere equally distant from every part of the circumference of a great circle; or the point in which a diameter of the sphere perpendicular to the plane of such circle meets the surface. Such a point is called the pole of that circle; as, the pole of the horizon; the pole of the ecliptic; the pole of a given meridian.
(n.) One of the opposite or contrasted parts or directions in which a polar force is manifested; a point of maximum intensity of a force which has two such points, or which has polarity; as, the poles of a magnet; the north pole of a needle.
(n.) The firmament; the sky.
(n.) See Polarity, and Polar, n.
Example Sentences:
(1) Two small populations of GLY + neurons were observed outside of the named nuclei of the SOC; one was located dorsal to the LSO, near its dorsal hilus, and the other was identified near the medial pole of the LSO.
(2) In 22 cases (63%), retinal detachment was at least partially flattened in the area of the posterior pole of the eye.
(3) Delineation of the presence and anatomy of an obstructed, nonfunctioning upper-pole duplex system often requires multiple imaging techniques.
(4) David Blunkett, not Straw, was the home secretary at the time the decision was taken to allow Poles and others immediate access to the British labour market.
(5) PYY-containing secretory granules were primarily found in the basal pole of open-type endocrine cells.
(6) Were he from Iceland, or from the north pole, then I would say he still had his ski boots on.
(7) A 40 year old female presented with secondary glaucoma and loss of vision due to anterior pole metastasis of breast carcinoma.
(8) A modification of a previously described curved ruler, the current model has a hinge for greater ease of maneuverability and a "T" piece on one end to facilitate measurement and marking of both poles of the muscle without repositioning the ruler.
(9) Two of them, the radiocapitate and deep radioscapholunate, insert on the scaphoid, whereas the collateral ligament courses to the distal pole of the scaphoid.
(10) Thus, the present observations provide histochemical evidence indicating an exclusive localization of calcium in mitochondria and tubulovesicular structures of the secretory ameloblast, and support their contributions to the translocation of calcium from the proximal to the distal pole of the cytoplasm.
(11) His balancing pole swayed uncontrollably, nearly tapping the sides of his feet.
(12) The retinal findings are quite similar to those found in diabetic retinopathy, except for unilaterality corresponding to the more obstructed artery and early onset in the retinal midzone rather than the posterior pole.
(13) Less marked lesions were however observed in distal tubules, particularly large vacuoles were present at the apical poles of the tubule cells, the sites of kallikrein secretion.
(14) The testicular vein--midway between the internal inguinal ring and the lower pole of the kidney--divides into the medial and lateral branch to form a delta.
(15) Probably there is a continuity of this system throughout the entire vascular pole including (1) all granulated cells, (2) all lacis cells, (3) the mesangium cells and (4) the adjacent smooth muscle cells of the vas afferens and vas efferens.
(16) In all of the old rats, but not in any of the young ones, symmetric high voltage activity was observed in the frontal pole of the cortex.
(17) Later, these vacuoles were divided into numerous vesicular spiral formation-centers, producing micronemes at the apical pole of young merozoites.
(18) Therefore, this nonrandom segregation to opposite poles can occur by mechanisms that do not involve DNA sequence homology.
(19) The intranuclear spindle of yeast has an electron-opaque body at each pole.
(20) All of these AChE positive fibers appeared to be related to the medial portions of the dorsal hippocampus from its septal pole to the dorsal psalterium.