(n.) A narrow opening resulting from a split or crack or the separation of a junction; a cleft; a fissure; a rent.
(v. t.) To crack; to flaw.
Example Sentences:
(1) Crevice corrosion propagation for gamma 2-free vs. gamma 2-containing amalgams was characterized by lower acceleration and maximum rates during the most dynamic period.
(2) Similarly, significant correlations were found between the individual tissue reaction scores and crevice corrosion scores from the 201 individual sites, again for all devices and for the asymptomatic and symptomatic removal groups.
(3) The objective of this study was to determine the in vitro corrosion products that resulted from crevice corrosion of low- and high-copper dental amalgams.
(4) The present study, along with that of the Ser82 variant protein (Louie et al., 1988b), clearly establishes the link between dielectric constant within the heme crevice and reduction potential.
(5) An iodine preparation removed 95% of accessible organisms, but about 20% of bacteria were protected by follicles, crevices, and lipids.
(6) The reaction of the Paracoccus oxidase with its own soluble cytochrome c550, which has a highly negative hemisphere on the side of the molecule away from the heme crevice, has different properties from those seen in its reaction with bovine cytochrome c. However the properties all change to be like those with bovine cytochrome c on addition of poly-L-lysine.
(7) Polymorphonuclear leukocytes (PMN) are predominant cells in the gingival crevice and saliva, and may play an important role in oral bacteria.
(8) By exploiting this bat's preference to roost in crevices, we could separately measure O2 uptake during ventilatory bouts and apneic periods using a flow-through metabolic chamber with a small dead space volume and short time constant.
(9) This implies that binding crevices for two chlorophylls and half of peridinins (four to five) are located at some distance from each other.
(10) The susceptibility of the 316 L CW austenitic stainless steel to pitting and relative resistance to crevice corrosion were measured by cyclic anodic polarization tests.
(11) Modification of lysines 8, 13, 25, 27, 72, 79, or 87 surrounding the heme crevice was found to significantly lower the rate of reaction, while modification of lysines in other regions had no effect.
(12) The introduction of an extra amino acid residue and of other changes in the crevice where the heme group is located is the likely cause of the instability of this hemoglobin variant.
(13) Since the pH of the gingival crevice increases from below neutrality in health to above pH 8 in disease, we decided to investigate the effect of environmental pH on the growth and enzyme activity of Bacteroides gingivalis W50.
(14) However, with a spin label previously shown to project to the lip on the crevice a clear N--F transition as well as the subsequent acid expansion are observed.
(15) On the atrioventricular valves, the deposition in this crevice was most severe on the outflow surface adjacent to the minor flow orifice.
(16) A new crevice geometry with elliptically shaped walls is introduced which reduces the height of the crevice needed for bubble emergence and relaxes the constraints for the stability of gas nuclei.
(17) Corrosion degradation of amalgam fillings is due mainly to localized corrosion cells in pores and crevices.
(18) It is believed to impart hydrophobicity while it could also determine the microgeometry of any crevices vital for bubble formation or retention.
(19) Gingival fluid was sampled from the orifices of the gingival crevices in five male subjects with clinically healthy gingiva.
(20) These bands can be assigned to modes which include strong contributions of vibrations largely localized in the propionate-carrying pyrrole rings A and D. This indicates structural differences in the deeper part of the heme crevice, remote from the mutation site.
Gap
Definition:
(n.) An opening in anything made by breaking or parting; as, a gap in a fence; an opening for a passage or entrance; an opening which implies a breach or defect; a vacant space or time; a hiatus; a mountain pass.
(v. t.) To notch, as a sword or knife.
(v. t.) To make an opening in; to breach.
Example Sentences:
(1) Linear and annular gap junctions between neighbouring cells were present, particularly in Group 1.
(2) We conclude that removal of dimers and repair of gaps were similar in all cases.
(3) Hence the major role of the 14-A arm of carboxybiotin is not to permit a large carboxyl migration but, rather to permit carboxybiotin to traverse the gap which occurs at the interface of three subunits and to insinuate itself between the CoA and keto acid sites.
(4) The junctional currents were already constant 1 ms after step changes in the junctional voltage; this was three orders of magnitude faster than the other known examples of voltage-controlled gap junctions between embryonic cells.
(5) These two enzymes may act jointly in filling up the gaps along the DNA molecule and elongating the DNA chain.
(6) Preliminary hearing results of 45 cases show air-bone gap closure of 67% within 10 dB and 98% within 20 dB.
(7) Measurements were made of the width of the marginal gap for three sites at each of four stages: (1) after the shoulder firing, (2) after the body-incisal firing, (3) after the glaze firing, and (4) after a correction firing.
(8) Office of National Statistics figures published in November last year showed that men earn 9.4% more than women, the lowest gender gap since records began in 1997.
(9) To a large extent, the failure has been a consequence of a cold war-style deadlock – Russia and Iran on one side, and the west and most of the Arab world on the other – over the fate of Bashar al-Assad , a negotiating gap kept open by force in the shape of massive Russian and Iranian military support to keep the Syrian regime in place.
(10) These activities define both the polarity of the anterior-posterior (AP) axis and the spatial domains of expression of the zygotic gap genes, which in turn control the subsequent steps in segmentation.
(11) After loss of permanent central incisors the treatment of choice could be either orthodontic closure or maintenance of the gap for a replacement-prosthetic, autotransplantation or implant.
(12) PTH, an inducer of shape change, did not affect the number of gap junctions appreciably.
(13) The primary aim of future work must still be directed toward preventing the formation of a gap between the restoration and the tooth.
(14) Since testosterone influenced both tissue stores and PDBu-stimulated secretion of LHRH and GAP, this steroid may selectively regulate biosynthesis and secretion of pro-LHRH-derived peptides through activation of the metabolic cascade involving the PKC system.
(15) Microsequencing of the peptides resolved by sodium dodecyl sulfate-polyacrylamide gel electrophoresis indicates that the amino terminus of the protein is disposed at or near the cytoplasmic surface of the gap junction, and that this surface also contains a protease-hypersensitive hydrophilic sequence between residues 109 and 123, presumably connecting the second and third transmembrane segments.
(16) The present investigation shows that the intramembranous proteins of tight and gap junctions are mobile structures within the fluid membrane.
(17) The report also recommends including justice and victim of violence targets in the national Closing the Gap strategy, recognising foetal alcohol spectrum disorders as a disability before the courts, and making a national commitment to a justice reinvestment approach to find community-based solutions to youth crime.
(18) Regions within the desmosome where the two plasma membranes converged suggested that gap junctions were a component of the desmosome-like junctions.
(19) The frequency of chromosome and chromatid gaps and chromosome deletions was significantly higher among workers than among controls, and the same was true for the number of individuals with some type of chromosome alteration.
(20) Gap junctions were of different sizes and frequently composed of a small number of connexons organized in polygonal aggregates or linear arrays.