(v. t.) To produce, as figures or designs, on mental, glass, or the like, by means of lines or strokes eaten in or corroded by means of some strong acid.
(v. t.) To subject to etching; to draw upon and bite with acid, as a plate of metal.
(v. t.) To sketch; to delineate.
(v. i.) To practice etching; to make etchings.
Example Sentences:
(1) After permeabilization, with attendant partial extraction, the preparation can be fixed, then viewed by either deep-etch replication, or by high-resolution scanning electron microscopy, with structure of interest revealed in deep view.
(2) The freeze-etch technique was used to study the morphology of Treponema refringens (Nichols).
(3) A thorough dental prophylaxis before acid-etching of enamel is often recommended.
(4) The results of the rapid-freeze and deep-etch procedure showed that the ridges observed by the surface replica method consisted of linear arrangements of elliptical particles on the ES face of the plasma membrane.
(5) All the summer deals in graphical, Etch-a-sketch form .
(6) When either predictability or bond strength was considered independently, several bracket systems, coupled with a particular etch time, had either high predictability or high bond strength.
(7) This demineralization was similar to enamel acid etched with 50% phosphoric acid for 2 mn.
(8) This study evaluated the bond strength between glass ionomer cements and laser-etched dentin.
(9) Acid etching smooths and cleans the dentinal surface.
(10) Examination of apposed replicas and deep-etched specimens indicated that at least some of the IMPs extend through the T. pallidum outer membrane and are exposed on the surface of the organism.
(11) Isolated appressed chloroplast membranes, highly enriched in photosystem II (PSII) activity, were examined by freeze-etch electron microscopy.
(12) The technique of freeze-etching for electron microscopy applied to isolated islets of Langerhans has permitted a successful evaluation of emiocytotic events on the cell surface.
(13) The tensile bond strengths of the bonding resin to the etched enamel surfaces were not significantly different.
(14) The etched porcelain laminate veneer is a new conservative treatment that offers a solution to fractured, discolored, and worn anterior teeth.
(15) SEM and TEM examinations suggested that dentinal collagen exposed by the etching but not entangled and impregnated by poly (4-META-co-MMA) easily deteriorated by water during the longer immersion.
(16) The performance of a commercial double-propane-jet freezer (Balzers QFD 101) has been assessed, for rapid freezing of fresh tissues in freeze-etch work.
(17) The purpose of this in vitro study was to determine the tensile bond strengths (TBS) of several orthodontic bonding systems and orthodontic brackets to enamel surfaces exposed to different etching procedures.
(18) We find that freeze-drying is the most reliable and easy method for molecules that withstand distilled water; freeze-etching can be successfully applied to transmembrane proteins (even in the presence of detergents or salt); the glycerol-spray technique provides an excellent alternative to the cryotechniques in particular for studies of single linear molecules.
(19) After acid etching, filtration produced a 32-fold increase in permeation.
(20) On the corresponding PF face of the plasma membrane, linear arrangements of the intramembrane particles (IMPs) of about 8 nm in diameter were observed by both the deep-etch and freeze-fracture methods.
Impression
Definition:
(n.) The act of impressing, or the state of being impressed; the communication of a stamp, mold, style, or character, by external force or by influence.
(n.) That which is impressed; stamp; mark; indentation; sensible result of an influence exerted from without.
(n.) That which impresses, or exercises an effect, action, or agency; appearance; phenomenon.
(n.) Influence or effect on the senses or the intellect hence, interest, concern.
(n.) An indistinct notion, remembrance, or belief.
(n.) Impressiveness; emphasis of delivery.
(n.) The pressure of the type on the paper, or the result of such pressure, as regards its appearance; as, a heavy impression; a clear, or a poor, impression; also, a single copy as the result of printing, or the whole edition printed at a given time.
(n.) In painting, the first coat of color, as the priming in house painting and the like.
(n.) A print on paper from a wood block, metal plate, or the like.
Example Sentences:
(1) In addition, the guanosine 3',5'-cyclic monophosphate accumulation response was less impressive in glomeruli than the guanylate cyclase response in IMCD tissue.
(2) Of all materials evaluated, Xantopren Blue and Silene silicone impression materials provided the best results in vivo.
(3) During the interview process, nurse applicants frequently inquire about the availability of such a program and have been very favorably impressed when we have been able to offer them this approach to orientation.
(4) Nwakali, an attacking midfielder, was the player of the Under-17 World Cup in Chile last year, which Nigeria won, and at which his team-mate Chukwueze, a winger, also impressed.
(5) Ketazolam was found to be significantly better than placebo in alleviating anxiety and its concomitant symptomatology as measured by the Hamilton Anxiety Rating Scale, three Physician's Global Impressions, two Patient's Global Impressions, and three Target Symptoms.
(6) Personal experience is recorded with two cases and the positive impressions of this operation.
(7) His words surprised some because of an impression that the US was unwilling to talk about these issues.
(8) It’s the small margins that have cost us.” There is more to it than that, of course, and Rooney gave the impression he had been hard on himself since the Uruguay game.
(9) The most reproducible instrument was the combination of Regisil, an elastic impression material, and a Rinn XCP bite block.
(10) (4) Electrical stimulation by cutaneous devices or implants can give much benefit to some patients in whom other methods have failed and there are indications, not only from anecdote and clinical impression but also now from experimental physiology, that it may benefit by mechanisms of interaction at the first sensory synapse.
(11) This is what we hope is the best golf tournament in the world, one of the greatest sporting events, and I think we will have a very impressive audience and have another great champion to crown this year."
(12) The orchestrated round of warnings from the Obama administration did not impress a coterie of senior Republicans who were similarly paraded on the talk shows, blaming the White House for having brought the country to the brink of yet another "manufactured crisis".
(13) Systolic time intervals measured after profuse sweating can give a false impression of cardiac function.
(14) Watford’s front two have impressed with their hard work, their technical quality and their interplay – a classic strike duo.
(15) The author differentiates between two modes of perception, one is the "expressive" mode, stabilizing and aiming at constancy, the other is the "impressive" mode, penetrating the self and aiming at identification with the percept.
(16) The results obtained by combined superficial freezing and intralesional stibogluconate injection were much more impressive than those obtained by each of the two modalities when used alone.
(17) Findings and impressions of a member of a British medical support group who toured the health services in newly independent Mozambique in September 1975.
(18) Forty impressions were poured with the disinfectant dental stone and a similar number were poured with a comparable, nondisinfectant stone.
(19) Our older population is the most impressive, self-sacrificing and imaginative part of our entire community.
(20) Two recently reported large scale clinical surveys support the impression that the new non-ionic low osmolality iodinated radiographic contrast media are indeed significantly safer for intravascular use than conventional agents.