(n.) Any one of two or more distinct crystalline forms of the same substance; or the substance having such forms; -- as, carbonate of lime occurs in the allomorphs calcite and aragonite.
(n.) A variety of pseudomorph which has undergone partial or complete change or substitution of material; -- thus limonite is frequently an allomorph after pyrite.
Example Sentences:
(1) Allomorphic relationships in chickens selected for high or low juvenile body weight and their reciprocal crosses were examined from hatch to 56 days of age (doa).
(2) The H-2w homozygotes were then characterized by serological typing with monoclonal and polyclonal antibodies specific for the known allomorphs controlled by the class I H-2K and H-2D loci or the class II H-2A and H-2E loci.
(3) Controlled winding and stretching deformations are used to study how the two allomorphs and different base sequences absorb such external stress.
(4) This reduced fermentation rate was apparently due to the partial conversion of the cellulose from the type I to the type II allomorph, since mercerized (type II) cellulose was also fermented more slowly, and only after a much longer lag period.
(5) The in vivo site at which the different allomorphs of the E alpha Ia molecule exert their Ir gene effect on the immune response to pigeon cytochrome c was examined by creating two different sets of radiation-induced bone marrow chimeras.
(6) Allomorphic growth of organs and feed utilization were measured in cockerels from two meat lines known to differ in growth potential under alternate-day and daily feeding of diets differing in nutrient density.
(7) Allomorph (allele determined by electrophoresis) frequencies for 20 enzyme (loci) were calculated and 7 populations (Texas, Mexico, Belize, Guatemala, Ecuador [EC], Venezuela, and the Dominican Republic [DR]) were compared pairwise in the statistic of genetic identity (I) (level of genetic similarity).
(8) Sequencing of the PCR products and transfection of these to Fc gamma R- cells indicated that in Fc gamma RIIa of HR or LR individuals: (i) three nucleotide substitutions (CA to TG and G to A) resulted in the change of glutamine to tryptophan at position 27 (first extracellular domain) and arginine to histidine at position 131 (second extracellular domain); (ii) expression of cDNA encoding the various combinations of these indicated that arginine at position 131 was essential for IgG1 binding whereas the amino acid changes at position 27 had no effect; and (iii) IgG1 at high concentration bound to all allomorphic forms of Fc gamma RIIa.
(9) In addition, the 'logic' of assuming Contrast leads to insurmountable difficulties in the acquisition of irregular forms and allomorphs.
(10) Thus, it is unlikely that these enzymic variants reflect allomorphic forms of P-450 3b.
(11) The allomorph obtained by this process seems to correspond to the so-called 'tendon-chitosan'.
(12) Limiting dilution analysis confirmed a number of antigenic relationships suggested by the long-term T cell clones and revealed that T cells specific for allomorphic protease determinants were at least as frequent in the blood of immune donors as were T cells committed to conserved determinants.
(13) Lutzomyia youngi Feliciangelis and Murillo and L. spinicrassa Morales, Osorno, Osorno, and Hoyos each have diagnostic allomorphs for phosphogluconate dehydrogenase (6PGDH) and fumarate hydratase (FUM).
(14) These clones defined five AP and three E specificities and suggested the existence of at least five allomorphic determinants expressed on the proteases of various Pseudomonas strains.
(15) Heterozygotes of hexokinase-1 and phosphoglucomutase displayed 2 allomorphs in equal dosage, indicating that trichomonads are diploid for these protein loci.
(16) A diagrammatic representation of the allomorphs among the 72 isolates is included.
(17) When isolated, the two major bands again produced an "isoelectric spectrum" suggesting that it reflects an allomorphism of cx-flagellin.
(18) With respect to the coupling factor's ability to hydrolyze ATP, the data in this study suggest that there are at least four distinct functional allomorphs of this enzyme: (1) the latent enzyme, which has no kinetically measurable ATPase activity, (2) intrinsic ATPase, which is catalyzed by a small percentage of the molecular population that has been activated by some natural mechanism, (3) activated ATPase, which has properties different from those of intrinsic ATPase, and (4) aged activated ATPase, in which some of the properties (Km for substrate, sensitivity to deactivation by Mg2+ and H+) spontaneously change within 30 min.
(19) Thus, we assume that they are stable conformational isomers of the proteins (allomorphism) or that there are only slight variations in the internal sequences of these proteins (polymorphism) causing distinct pIs.
Alternant
Definition:
(v. t.) Composed of alternate layers, as some rocks.
Example Sentences:
(1) The rash presented either as a pityriasis rosea-like picture which appeared about three to six months after the onset of treatment in patients taking low doses, or alternatively, as lichenoid plaques which appeared three to six months after commencement of medication in patients taking high doses.
(2) The rise of malaria despite of control measures involves several factors: the house spraying is no more accepted by a large percentage of house holders and the alternative larviciding has only a limited efficacy; the houses of American Indians have no walls to be sprayed; there is a continuous introduction of parasites by migrants.
(3) But in 2017, to borrow another phrase from across the pond, there simply is no alternative.
(4) This modulation results from repetitive, alternating bursts of excitatory and inhibitory postsynaptic potentials, which are caused at least in part by synaptic feedback to the command neurons from identified classes of neurons in the feeding network.
(5) These authors, therefore, conclude that this modified surgical approach is a viable alternative to the previously described procedures for resistant metatarsus adductus.
(6) The possibility that both IL 2 production and IL 2R expression are autonomously activated early in T cell development, before acquisition of the CD3-TcR complex, led us to study the implication of alternative pathways of activation at this ontogenic stage.
(7) This is an easy, safe, and rapid alternative for the emergent treatment of superior vena caval syndrome.
(8) Core biopsy with computed tomography (CT) or ultrasound (US) guidance may be such an alternative, particularly when a spring-loaded firing device is used.
(9) In both experiments, Gallus males were placed on a commercial feed restriction program in which measured amounts of feed are delivered on alternate days beginning at 4 weeks of age.
(10) The method used in connection with the well known autoplastic reimplantation not only presents an alternative to the traditional apicoectomy but also provides additional stabilization of the tooth by lengthing the root with cocotostabile and biocompatible A1203 ceramic.
(11) While the majority of EU member states, including the UK, do not have a direct interest in the CAR, or in taking action, the alternative is unthinkable.
(12) Many examples are given to demonstrate the applications of these programs, and special emphasis has been laid on the problem of treating a point in tissue with different doses per fraction on alternate treatment days.
(13) Initiation of the alternative pathway by the cryptococcal capsule is characterized by a lag in C3 accumulation and the appearance of a limited number of focal initiation sites which resemble those observed when the alternative pathway is activated by zymosan and nonencapsulated cryptococci.
(14) In our efforts to explore alternative treatment regimens for multidrug-resistant tumors we have examined the sensitivity of MDR tumor cell lines to lymphokine activated killer (LAK) cells.
(15) Following treatment with reserpine or alternatively with a combination of phenothiazines (Randolektil, Majeptil) a drug-induced parkinsonoid reaction was provoked in rats.
(16) Review of the records of five patients with CPSE treated with radiologic occlusion procedures showed that these are suitable alternatives to surgery.
(17) Being the decision-making agent, the rehabilitee must therefore be offered typical situational fragments of a possible educational and vocational future, intended on the one hand to inform him of occupational alternatives and, on the other, to provide initial experience.
(18) This study suggests that the BD VACUTAINER agar slant is an acceptable alternative to the Septi-Chek system for routine blood cultures.
(19) Treatment failures tend to occur early in the course of follow-up, permitting easy identification of candidates for alternative therapeutic approaches.
(20) In view of many ethical and legal problems, connected in some countries with obtaining human fetal tissue for transplantation, cross-species transplants would be an attractive alternative.