(n.) A trench in the earth made by, or as by, a plow.
(n.) Any trench, channel, or groove, as in wood or metal; a wrinkle on the face; as, the furrows of age.
(n.) To cut a furrow in; to make furrows in; to plow; as, to furrow the ground or sea.
(n.) To mark with channels or with wrinkles.
Example Sentences:
(1) The contractile ring exists from about 20 sec after anaphase to the end of furrowing activity, i.e., 6-7 min at 20 degrees C. It is closely associated with the plasma membrane at all times, and is probably assembled there.
(2) Committing to ploughing a lone furrow without international agreement will damage our economy for little or no environmental benefit.
(3) The orientations of the cleavage spindles and the corresponding furrows' positions are assumed to be correlated to the field's temporal evolution which, in turn, is determined by flows of cytoplasmic components originated by the changes in the membrane shape.
(4) Some fields had lightly furrowed brows, others deep gullies and humpbacked hills.
(5) These observations suggest that the double strands on the P-face are registered with the grooves (type I or type II) on the complementary E-face and that a row of particles on the E-face is registered with a furrow-like region between two rows in the double strands on the P-face.
(6) New work is required to identify the signals from the mitotic spindle that specify the position of the furrow.
(7) Daballen navigates the jeep between thorn bushes and over furrows, guided by a rising moon and his intimate knowledge of the terrain.
(8) Near the end of first cleavage, membrane of the outer, pigmented surface of the embryo and a short band of membrane at the leading edge of the furrow displayed a high silver grain density, but the remainder of the furrow membrane was lightly labeled.
(9) We report the results obtained from 18 women whose facial folds and furrows were treated with augmentation therapy.
(10) The events that lead to the cell shape changes mediating ventral furrow formation require the transcription of zygotic genes under the control of twist and snail.
(11) Many leapt from the tyres they were swinging in to furrow their brows and howl in anger.
(12) During conversion of cells to protoplasts, plasma membrane invaginations were arranged end-to-end to form prolonged furrows which persisted until cell wall regeneration had been completed.
(13) 3-D-reconstructions of serial sections of human embryos show that the margin of the lip furrow band is irregular and consists of an abundance of individual epithelial excrescences.
(14) We then show that stimulatory signals of the right kind would induce furrows at the locations observed, in spherical cells as well as cells distorted by experimental manipulation.
(15) In gastrulae, spectrin accumulates near the embryo surface, especially at the forming amnioproctodeal invagination and cephalic furrow.
(16) The present observations indicate that the previous descriptions of the urodele carotid labyrinth should be corrected: a vascular ring exists around the common carotid artery and the latter shows a corresponding narrowing at the entrance to the carotid labyrinth; the vascular ring forms the most proximal part of the external carotid rete; the central chamber occupies only a part of the proximal end of the carotid labyrinth; the internal carotid rete and the external carotid rete constitute a continuous rete mirabile; and a distinct furrow exists in the boundary between these two portions of the rete mirabile.
(17) Injection of autologous adipose tissue removed via liposuction has been used clinically for facial contouring, the aging face, furrows, facial atrophy, acne scars, nasolabial folds, chin, and various other surgical defects.
(18) A cluster of facial actions comprised of brow bulging, eyes squeezed shut, deepening of the naso-labial furrow and open mouth was associated most frequently with the invasive procedure.
(19) Thus, the orientation of mitotic furrows depends on the internal polarity of the cell before mitosis.
(20) The semidominant and nonpleiotropic suppressors at four of the six loci display defective eye phenes themselves, and the phenotypically normal mutants at a fifth locus are suspected alleles of a gene represented by recessive furrowed eye mutants.
Substrate
Definition:
(n.) A substratum.
(a.) Having very slight furrows.
(v. t.) To strew or lay under anything.
Example Sentences:
(1) 5-HT thus appears to be the preferred substrate for uptake into platelets and for movement from cytoplasm to vesicles.
(2) Some common eye movement deficits, and concepts such as 'the neural integrator' and the 'velocity storage mechanism', for which anatomical substrates are still sought, are introduced.
(3) 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.
(4) The common polyamines, spermidine and spermine, and histones were not substrates.
(5) Manometric studies with resting cells obtained by growth on each of these sulfur sources yielded net oxygen uptake for all substrates except sulfite and dithionate.
(6) The PSB dioxygenase system displayed a narrow substrate range: none of 18 sulphonated or non-sulphonated analogues of PSB showed significant substrate-dependent O2 uptake.
(7) The observed relationship between prorenin and renin substrate concentrations might be a consequence of their regulation by common factors.
(8) This theory was confirmed by product analysis and by measuring the affinity of the substrate for the enzyme by its inhibition of p-nitrophenyl glucoside hydrolysis.
(9) Yields of Thiobacillus dentrificans on different substrates were compared.
(10) It includes preincubation of diluted plasma with ellagic acid and phospholipids and a starting reagent that contains calcium and a chromogenic peptide substrate for thrombin, Tos-Gly-Pro-Arg-pNA.
(11) The present results provide no evidence for a clear morphological substrate for electrotonic transmission in the somatic efferent portion of the primate oculomotor nucleus.
(12) Fluorination with [18F]acetylhypofluorite yields 6-[18F]fluoro-L-dopa with 95% radiochemical purity; fluorination of the same substrate with [18F]F2 yields a mixture of all three structural isomers in a ratio of 70:16:14 for 6-, 5-, and 2-fluoro compounds.
(13) The enzyme, when assayed as either a phospholipase A2 or lysophospholipase, exhibited nonlinear kinetics beyond 1-2 min despite low substrate conversion.
(14) The stopped-flow technique was used to measure the rate constants for the reactions between the oxidized forms of peroxidase with luminol and the following substrates: p-iodophenol, p-bromophenol, p-clorophenol, o-iodophenol, m-iodophenol, luciferin, and 2-iodo-6-hydroxybenzothiazole.
(15) The time-course and dose-response for this modification of pp60c-src paralleled PDGF-induced increases in phosphorylation of pp36, a major cellular substrate for several tyrosine-specific protein kinases.
(16) Control incubations revealed an inherent difference between the two substrates; gram-positive supernatants consistently contained 5% radioactivity, whereas even at 0 h, those from the gram-negative mutant released 22%.
(17) Uptake could be supported either by substrate oxidation or by adenosine 5'-triphosphate (ATP), and was inhibited in the former case by antimycin or cyanide, in the latter case by oligomycin, and in both cases by 2,4-dinitrophenol.
(18) These results indicate that both the renal brush-border and basolateral membranes possess the Na(+)-dependent dicarboxylate transport system with very similar properties but with different substrate affinity and transport capacity.
(19) Congenitally deficient plasmas were used as the substrate for the measurement of procoagulant activities in a one-stage clotting assay.
(20) This capacity is expressed during incubation of the bacteria with the substrate and needs a source of carbon and other energy metabolites.