(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.
Vetch
Definition:
(n.) Any leguminous plant of the genus Vicia, some species of which are valuable for fodder. The common species is V. sativa.
Example Sentences:
(1) We conclude that the structure of the acidic EPS does not control host-specific nodulation of white clover, hairy vetch, and beans for the strains of R. leguminosarum tested here.
(2) It hydrolyses native vetch legumin and vicilin up to peptides having on average 9 and 16 amino acid residues respectively.
(3) Transport in both vetch and barley usually declined before an elapsed time of 24 hr unlike corn, which maintained its steady state beyond 24 hr.
(4) That is, although NodH mutants lose the ability to elicit root hair curling (Hac-), infection threads (Inf-), and nodule meristem formation (Nod-) on the homologous host alfalfa, they gain the ability to be Hac+ Inf+ Nod+ on a nonhomologous host such as common vetch.
(5) The clinical findings, treatment and pathological changes are described in a case of suspected vetch (Vicia benghalensis L.) poisoning in a Friesland cow in the Clanwilliam district, Republic of South Africa.
(6) Antibody to purified trifoliin binds to the root hair region of 24-h-old clover seedlings, but does not bind to alfalfa, birdsfoot trefoil or joint vetch.
(7) Crown vetch, harvested 300 m from the nearest road, was fed as the control.
(8) is isolated from vetch seedlings and 1600-fold purified by means of chromatography on DEAE-cellulose, hdroxyapatite and gel filtration through Sephadex G-100.
(9) Hairy vetch poisoning (vetch-associated disease) of cattle is a generalized disease characterized pathologically by infiltration of skin and many internal organs by monocytes, lymphocytes, plasma cells, and often eosinophils and multinucleated giant cells and clinically by dermatitis, pruritus, often diarrhea, wasting, and high mortality.
(10) For example, R. meliloti elicits the formation of root nodules on alfalfa and not on vetch.
(11) Forty-four elements were determined in crown vetch sampled along a heavily travelled highway in Virginia.
(12) No free amino acids were found in hydrolysates of both vetch proteins.
(13) Root segments of vetch, barley, and pine were exposed to a nutrient solution containing (85)Sr and (45)Ca tracers.
(14) NodRm-1 elicits root hair deformation specifically on alfalfa at a concentration less than 10(-10) M but has no effect on vetch (a heterologous host plant).
(15) Translocation was measured from solutions containing stable ions at concentrations of 2.5 mm Ca, and at either 0.5 mm or 2.5 mm Sr. Polar transport was established between 12 and 18 hr in barley, and between 16 and 22 hr in vetch.
(16) A cheaper alternative is boiled rabbit stuffed with chestnuts, dates, black soybean, and milk vetch root, popular since the 1970s, partly due to the “Kid's Plan” , which spells out children's activities and responsibilities.
(17) In vetch, stable Ca transport was reduced to one-fifth when Sr concentration was increased from 0.5 mm to 2.5 mm.
(18) No nodulation of peas or vetch was observed with a double nodM glmS mutant, and this block occurred at a very early stage since no root-hair deformation or infection threads were seen.
(19) She developed dermatitis on the 11th day of vetch feeding, and despite withdrawal from the vetch diet on the 12th day, death occurred 24 days after first day of vetch feeding.
(20) Lymphocyte blastogenesis studies with vetch lectin were not interpretable.