(n.) The operation of putting down or displacing the opaque lens in cataract.
(n.) Embroidering by laying the materials upon the surface of the foundation, instead of drawing them through.
Example Sentences:
(1) A changed position of the mirror-reflector in the Rubin-2 thermovision unit as well as the use of an improved model of the couch-chair and a special cassette for electrochemical paper reduce the labour input and raise the information value of the method.
(2) But had it been couched in "more cautious terms or less certain terms may not have been capable of criticism at all".
(3) To make adjustments, the couch longitudinal position was changed 20 times (range -10 to +15 mm).
(4) The gene has been named couch potato (cpo) because several insertional alleles alter adult behavior.
(5) In addition to representing the analysis or the analyst in general, the couch can represent the unconscious, or it may take on the symbolic significance of the analyst's or mother's arms, lap, breasts, or womb.
(6) Treatment was then planned for a 6 MV linear accelerator using a vertical couch extender which enables the patient to remain supine throughout the treatment by increasing the table height to allow the posterior portal to be treated through the couch.
(7) Beside 82% of failures these case reports on cataract-couching contain postoperative complications, epicritically symptomatic for today's clinical pictures, which have been etiologically unknown in 1751.
(8) By going to college and graduate school, I thought I was insulating myself from being broke and sleeping on friends’ couches and being hungry again.
(9) We sat on the couch and watched as Madiba was set free.
(10) Her symptoms were subclinical fever, couch, hemosputum and frequent respiratory infections.
(11) These Church objectives suggest a set of CHA objectives, or functions, couched here in the language of long range planning so that they might lend themselves to strategy making.
(12) Murine squamous carcinoma cells (KLN205) grown in a medium supplemented with the retinoid, 13-cis retinoic acid (RA), had dose-dependent, selective increases in the expression of certain lectin receptors, which correlated with a dramatic decrease in the ability to form pulmonary colonies (P = .0003) (Couch MJ, Pauli BU, Weinstein RS, Coon JS: JNCI, 78:971-977, 1987).
(13) Advantages of isocentrical techniques are thereby maintained, but the number of mechanical movements required is minimized and collimators and couch rotations are not needed.
(14) Blotting, adsorption and elution and inhibition studies clearly demonstrated allergenic cross-reactivity (that is, antigenic cross-reactivity detected by IgE antibodies) between olive, privet, ryegrass (Lolium perenne) and couch grass (Bermuda grass: Cynodon dactylon) pollen components.
(15) Yesterday, David Cameron pushed things along , acknowledging that boosting Holyrood’s status would reopen big questions for England, and making reference to last year’s report by the McKay commission – a plan that offered a somewhat underwhelming vision of “compromise rather than conflict”, but set out a future in which: “Decisions taken in the Commons which have a separate and distinct effect for England (or England-and-Wales)” would largely “be taken only with the consent of a majority of MPs sitting for constituencies in England (or England-and-Wales).” As is usually the case with such texts, most of it was couched in terms of deadened officialspeak.
(16) The intersection of a therapy x-ray beam with steel rails beneath or along the side of the patient support couch should be avoided.
(17) When grouped into the 6 key words, the opinions uncovered a vast somatic field, confusion couched in metonymic figures of speech, such as using the term "woman" for "mental patient," moral, genital and sexual connotations.
(18) Landrieu has more or less said that she supports it, personally , but has always couched those statements with a clear desire not to go against her state's consensus.
(19) To our right, four miles of wide clean beach, fringed by bumpy low sand dunes sprouted here and there with couch grass, flowering creepers and low bushes.
(20) This paper develops a theory outlining the formation and evolution of a symbol couched in terms of the neural substrate.
Lens
Definition:
(n.) A piece of glass, or other transparent substance, ground with two opposite regular surfaces, either both curved, or one curved and the other plane, and commonly used, either singly or combined, in optical instruments, for changing the direction of rays of light, and thus magnifying objects, or otherwise modifying vision. In practice, the curved surfaces are usually spherical, though rarely cylindrical, or of some other figure.
Example Sentences:
(1) These results demonstrate that increased availability of galactose, a high-affinity substrate for the enzyme, leads to increased aldose reductase messenger RNA, which suggests a role for aldose reductase in sugar metabolism in the lens.
(2) Based on several previous studies, which demonstrated that sorbitol accumulation in human red blood cells (RBCs) was a function of ambient glucose concentrations, either in vitro or in vivo, our investigations were conducted to determine if RBC sorbitol accumulation would correlate with sorbitol accumulation in lens and nerve tissue of diabetic rats; the effect of sorbinil in reducing sorbitol levels in lens and nerve tissue of diabetic rats would be reflected by changes in RBC sorbitol; and sorbinil would reduce RBC sorbitol in diabetic man.
(3) The significance of the differences in these two patterns of actin is discussed in terms of differences in the accommodative ability and static lens shape in these two animals.
(4) The epithelium of Brunner's gland stained intensely with Ricinus communis agglutinin-I (RCA-I), succinylated-WGA (S-WGA) and wheat-germ agglutinin (WGA), moderately with Bandeirea simplicifolia agglutinin-I (BS-I), Concanavalia ensiformis agglutinin (Con A) peanut agglutinin (PNA) and Ulex europaeus agglutinin-I (UEA-I) and occasionally with Dolichos biflorus agglutinin (DBA), Lens culinaris agglutinin (LCA) and soybean agglutinin (SBA).
(5) That is, he believes, to look at massively difficult, interlocking problems through too narrow a lens.
(6) The advantages of the incision through the pars plana ciliaris are (1) easier approach to the vitreous cavity, (2) preservation of the crystalline lens and an intact iris, and (3) circumvention of the corneal and chamber angle complications sometimes associated with the transcorneal approach.
(7) The third patient was using an extended-wear soft contact lens for correction of residual myopia.
(8) The cellularity depends on the type of the lens and the material of the lens and on the clinical picture of the disease.
(9) Although lens haemagglutinins were detected in 6 out of 7 rabbits, in only 3 of the 6 animals did the titre reach a maximum of 1:640.
(10) Dioptric aniseikonia was calculated between 1 month and 24 months after surgery (with Gruber's and Huber's computer program) on the basis of most recently obtained values (bulb axis length, depth of the anterior chamber, lens thickness, necessary refraction), and compared with subjective measurements taken with the phase difference haploscope.
(11) We propose that a channel with these properties could contribute to maintenance of lens transparency and fluid balance.
(12) Although the lens did not alter stereopsis, it did produce severe color discrimination losses for normal and dichromatic subjects.
(13) The general efficacy of this intraocular lens compared with other anterior chamber lenses was not addressed in this study.
(14) However, the monkey lens low molecular weight proteins differ from the human low molecular weight proteins in charge as well as molecular weight determined by SDS-PAGE.
(15) Fifty-five myopic naval personnel with no previous contact lens experience were put through a three-week study using these contact lenses.
(16) A Stryker turning frame was used during surgical removal of a posterior displaced lens.
(17) The biocompatibility and fixation of a new silicone intraocular lens was evaluated in the cat eye.
(18) Both organisms have previously been found to be sequestered in the posterior lens capsule by histological and microbiological examination of excised capsular specimens.
(19) Previous experiments had demonstrated that the receptors for the lectins soybean agglutinin (SBA), wheat germ agglutinin, concanavalin A and Lens culinaris agglutinin all were relatively uniformly distributed on both myoblasts and myotubes, and that SBA receptors were capable of rapid redistribution on myotubes but not myoblasts at 4 degrees C (Sawyer & Akeson, 1983).
(20) The relative permittivity and conductivity of rabbit eye lens were measured in the frequency domain between 2 and 18 GHz at temperatures of 37 and 20 degrees C. An analysis of the data suggested that a significant proportion of the bulk water in nuclear and cortical lens tissue may behave differently to pure water.