(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.
Pens
Definition:
(n.) pl. of Penny.
Example Sentences:
(1) Why bother to put the investigators, prosecutors, judge, jury and me through this if one person can set justice aside, with the swipe of a pen.
(2) And if the Brexit vote was somehow not respected by Westminster, Le Pen could be bolstered in her outrage.
(3) Auranofin (AF), D-penicillamine (D-pen) and thiola are prescribed as disease-modifying drugs in the treatment of rheumatoid arthritis (RA).
(4) It’s clear which way the ultra-right community around Ukip wishes to go: their timelines are full of praise for Marine Le Pen and Geert Wilders , and blazing with imagery – both real and fake – of migrant riots in France and Sweden.
(5) Superman fans are up in arms at the decision of the publisher to appoint a noted anti-gay writer to pen the Man of Steel's latest adventures.
(6) By moving an electronic pen over a digitizing tablet, the subject could explore a line drawing stored in memory; on the display screen a portion of the drawing appeared to move behind a stationary aperture, in concert with the movement of the pen.
(7) Left ventricular cavity and muscle areas of each image were planimetered with a light-pen system and summated for volume: total volume = sigma (areas x 3 mm).
(8) The integrated sensing system is an ideal instrumental set up for viewing and recording the behaviour of rodents as well as other animals in the experimental pen throughout the year under varying weather and light conditions.
(9) The pullets were housed in battery brooder pens with raised wire floors.
(10) The dogs were housed in gravel-based, outdoor pens with doghouses in a high-altitude, high-sunshine level environment.
(11) There is a simple solution, formulated by English PEN, the Manifesto Club and the Earl of Clancarty, who raised the matter in the Lords earlier this year: remove short-term visits by non-EU artists from the PBS and expand the entertainer route, letting paid and unpaid artists qualify.
(12) In France last year, Marine Le Pen scored 18% in the presidential election and is now powering ahead against François Hollande, while in the Netherlands Geert Wilders' Freedom party is polling at 15%.
(13) With a stroke of his pen, he effectively declared the end of racism in America.
(14) The 27-year-old has put pen to paper on a three-and-a-half-year deal at the Emirates – he will wear the No23 shirt at the club – though confirmation that the deal had been ratified by the Premier League did not come until just before 5pm tonight.
(15) Harnessing its greatest asset – its authors – PEN is planning to publish an open letter to each of the five imprisoned writers every day this week, in the run up to the 33rd annual Day of the Imprisoned Writer on 15 November.
(16) An area on top of a hill near to the spot where Sharon was laid to rest alongside his late wife, Lily, was penned off with crash barriers.
(17) Deaths, 40 on CAZ and 21 on AG+PEN, were mainly related to their underlying condition.
(18) There is a god who protects me, and I just don’t believe Hofer will send me to a concentration camp.” Like Marine Le Pen’s Front National, the Freedom party has actively tried to distance itself from its antisemitic past since at least 2010, when it joined a cross-party alliance in the European parliament with Geert Wilders’ Party for Freedom and Italy’s Northern League.
(19) But Ukip is not the NF nor Trump, Nigel Farage is not Le Pen, father, daughter or niece Marion.
(20) I don’t think we should spend too long doing it.” Farage enjoyed support from the far-right French politician and Front National leader, Marine Le Pen , who spoke next.