(a.) Incised nearly to the midrib; as, a cleft leaf.
(n.) A space or opening made by splitting; a crack; a crevice; as, the cleft of a rock.
(n.) A piece made by splitting; as, a cleft of wood.
(n.) A disease in horses; a crack on the band of the pastern.
Example Sentences:
(1) Intraepidermal clefting starts at the junction between the basal and epidermal layers, and later involves all of the levels of the stratum spinosum.
(2) Closure of both cleft spaces by orthodontic means was achieved in 20 of the 21 patients in the first group, and in 14 of the 20 patients in the second group.
(3) In the absence of prostigmine, increasing the concentration of ACh in the synaptic cleft did not change the time constant for decay of end-plate currents.
(4) Both types of oral cleft, cleft palate (CP) and cleft lip with or without CP (CLP), segregate in these families together with lower lip pits or fistulae in an autosomal dominant mode with high penetrance estimated to be K = .89 and .99 by different methods.
(5) Three different structures have been observed among the binding proteins: unliganded 'open cleft', liganded 'open cleft', and liganded 'closed cleft'.
(6) Retrognathia or retrusion of the maxilla and mid-face is present in about one-third of treated cleft palate patients.
(7) At S-L clefts, paranodal-nodal regions, and Schwann cell nuclei, the axonal areas were smaller and the NF densities were higher than at compact myelinated regions.
(8) Cleft palate was found in 98.1% of fetuses in the positive control group and none of them in the negative control group.
(9) Recent reports have indicated the usefulness of nuclear grooves (clefts or notches) as an additional criterion for the diagnosis of papillary thyroid carcinoma in fine needle aspirates; most of these studies were carried out on alcohol-fixed material stained with the Papanicolaou stain or with hematoxylin and eosin, which yield good nuclear details.
(10) The question of how the contraction of adjacent endothelial cells might widen the intercellular clefts and thus regulate permeability is discussed.
(11) An examination of 9720 Zagreb school children, 6-13 years of age, revealed submucous cleft palate (SMCP) in 5 and cleft uvula in 232.
(12) These factors include narrowing of septal arteries and the artery to the atrioventricular node, preservation of fetal anatomy with dispersion in the atrioventricular node and His bundle, fibrosis of the sinus node, clefts in the septum, multiple atrioventricular pathways and massive myocardial infarction.
(13) Although maternal ingestion of antiepileptic drugs is strongly suspected of causing congenital defects, particularly oral clefts, the effect of epilepsy itself or a combined effect of drug intake and epilepsy have not been excluded as etiological factors.
(14) To clarify the mechanism by which retinoid causes cleft palate, we investigated the effect of retinoic acid (RA) on proliferation activity and glycosaminoglycan (GAG) synthesis in mouse fetuses palatal mesenchymal (MFPM) cells.
(15) The blood lymphocytes were small with scanty cytoplasm, densely condensed nuclear chromatin, and deep clefts originating in sharp angles from the nuclear surface.
(16) The familial association of epilepsy and cleft lip with or without cleft palate (CL (P)) is analyzed assuming both entities share common genetic predisposing factors.
(17) In the following, there will be indicated the approved techniques and methods of suturing the cleft palate and a new method will be discussed related to the reciprocal Z-type plastic operation.
(18) Fifty per cent of the children with clefts of the palate and lip had deviated nasal septum producing nasal obstruction.
(19) A family is reported of 500 facial cleft index cases, attendees for plastic surgery review at hospitals in northern England.
(20) An infant with a complete unilateral cleft of the lip and palate underwent maxillary expansion treatment using an oral orthopedic appliance.
Crevice
Definition:
(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.