(p. pr.) Equivalent in combining or displacing power to two atoms of hydrogen; dyad.
Example Sentences:
(1) Bivalent F(ab')(2) also retains its insulin-like effects.
(2) It could be demonstrated that equimolar doses of the bivalent alpha,N-(epsilon,N-DNP-aminocaproyl-)-epsilon,N-DNP-L-lysine and the multivalent dinitrophenylated bovine serum albumin were equally effective in eliciting reactions in skin sites provided that a high affinity antibody was used for sensitization.
(3) The function of the other bivalent cations is unknown.
(4) We interpret these experiments in terms of a theory of equilibrium binding of bivalent haptens to cell surface antibody that is presented in the previous paper.
(5) Bivalent cations (Ca2+, UO2(2+) or Zn2+) in the subphase at pH 5.6 significantly modified the behaviour of mixed monolayers of fusogenic lipids with phospholipids; there was a parallel perturbing effect of fusogenic lipids on interactions between monolayers of phospholipids and bivalent cations.
(6) In continuation of the research on male human meiosis within the study of pachytene bivalents, results from the analysis of 125 cells are presented.
(7) These oocytes contain 6 distinct bivalent chromosomes in diakinesis.
(8) In meiotic prophase of spermatocytes, chromosomes 2 and 3 form pachytene-diplotene bivalents whose arms may be associated by chiasmata in postdiplotene stages, but the X, Y and fourth chromosomes participate in a complex multivalent.
(9) Experiments indicated that complement deposition altered functionally bivalent IgG3 antibody in the immune complex into a univalent one.
(10) Low melittin concentrations (1-2 mcM) increased in several times the rate of H+, K+, Na+ ions and Tris transport, in a lesser degree--bivalent ions and Cl- transport and did not affect the permeability for succrose.
(11) The first two opioid peptide bivalent ligands with different spacer lengths containing different numbers of hydroxyl groups, (Tyr-D-Ala-Gly-Phe-NH-CH2-CHOH-)2 (Tyr-D-Ala-Gly-Phe-NH-CH2-CHOH-CHOH-)2, were synthesized and their binding to mu, delta, and kappa opioid receptors was characterized.
(12) The bivalent vaccine was completely attenuated for children.
(13) Bivalent cations such as Mg2+ and Zn2+ differentially affect their binding to oligonucleotides which contain the HIV-enhancer domain.
(14) The purified enzyme showed a pH optimum 8.5 (Tris-HCl buffer) and required bivalent cations for catalysis.
(15) A method of radioimmunoscintigraphy using bivalent "Janus" haptens with an apparent enhanced affinity ("avidity") for the antibody is described.
(16) Two monovalent CD3 antibodies with mixed heavy chain isotypes were very poor in lysis but, in contrast, a monovalent antibody possessing two identical rat gamma 2b heavy chains but two non-identical light chains was found to be more lytic with human complement than the parental bivalent CD3 antibody.
(17) It is concluded that reactive oxygen species, especially hydroxy radical, play a significant role on renal injury in bivalent hapten immune complex glomerulonephritis.
(18) Dissociation of the X-Y chromosome bivalent in diakinesis-metaphase I spermatocytes of adult mice was significantly more frequent in the CBA strain (29%) than in C57, KP, or KE strains (7-11%).
(19) It is suggested that bivalent ligand binding is required as a signal to elicit chemotactic locomotion.
(20) Results included the following: (1) lymphocyte stimulation responses to PHA and SPL were generally depressed in the CA patients versus controls; (2) incubation with indomethacin produced bivalent effects in both controls and CA patients, depending on the concentration of indomethacin and lymphocyte stimulant; incubation with optimum concentrations of indomethacin generally produced augmented responses in both study groups whereas high concentrations of indomethacin were suppressive; (3) the immune potentiating effects were not observed in older patients with advanced disease; and (4) removal of adherent leukocytes (mainly monocytes) also restored depressed lymphocyte responses.
Pair
Definition:
(n.) A number of things resembling one another, or belonging together; a set; as, a pair or flight of stairs. "A pair of beads." Chaucer. Beau. & Fl. "Four pair of stairs." Macaulay. [Now mostly or quite disused, except as to stairs.]
(n.) Two things of a kind, similar in form, suited to each other, and intended to be used together; as, a pair of gloves or stockings; a pair of shoes.
(n.) Two of a sort; a span; a yoke; a couple; a brace; as, a pair of horses; a pair of oxen.
(n.) A married couple; a man and wife.
(n.) A single thing, composed of two pieces fitted to each other and used together; as, a pair of scissors; a pair of tongs; a pair of bellows.
(n.) Two members of opposite parties or opinion, as in a parliamentary body, who mutually agree not to vote on a given question, or on issues of a party nature during a specified time; as, there were two pairs on the final vote.
(n.) In a mechanism, two elements, or bodies, which are so applied to each other as to mutually constrain relative motion.
(v. i.) To be joined in paris; to couple; to mate, as for breeding.
(v. i.) To suit; to fit, as a counterpart.
(v. i.) Same as To pair off. See phrase below.
(v. t.) To unite in couples; to form a pair of; to bring together, as things which belong together, or which complement, or are adapted to one another.
(v. t.) To engage (one's self) with another of opposite opinions not to vote on a particular question or class of questions.
(v. t.) To impair.
Example Sentences:
(1) The distance between the end of fic and the start of pabA was 31 base pairs.
(2) At the fepB operator, a 31 base-pair Fur-protected region was identified, corresponding to positions -19 to +12 with respect to the transcriptional start site.
(3) Mapping of the cross-link position between U2 and U6 RNAs is consistent with base-pairing between the 5' domain of U2 and the 3' end of U6 RNA.
(4) This value is about 30 times higher than the association constant for guanine-cytosine base pair formation under the same experimental conditions.
(5) For related pairs, both the primes (first pictures) and targets (second pictures) varied in rated "typicality" (Rosch, 1975), being either typical or relatively atypical members of their primary superordinate category.
(6) Plasma renin activity (PRA) and aldosterone concentration were measured before and during submaximal exercise in 10 male monozygotic twin pairs who were discordant for smoking.
(7) Fifty-two pairs of canine femora were tested to failure in four-point bending.
(8) Other DNase I hypersensitive sites located adjacent to the S14 cap site at -65 to -265 base pairs (Hss-1) or upstream at -1.3 kb (Hss-2), -2.1 kb (Hss-3'), -5.3 kb (Hss-4), and -6.2 kb (Hss-5) remained unaffected by changes in S14 gene transcription.
(9) Delta roc, which extends from base pairs 41883 to 43825, overlaps the nin5 deletion, which extend from base pairs 40501 to 43306.
(10) In all cases, endocrine cells immunoreactive to only one of the paired antisera were detected except for anti-glucagon and anti-glucagon-like peptide 1, which always immunostained the same cells.
(11) Arterial-type flows produced a pair of vortex sinks downstream of the branching port.
(12) Benzaldehyde's in cherries and cherrystones and amaretto, so it's immediately a base to pair things with."
(13) The lengths and heights of the scalae tympani in ten pairs of serially sectioned temporal bones were measured by an adaptation of the serial section method of cochlear reconstruction.
(14) Paired tolbutamide and glucose infusions using a square wave technique demonstrated that although early phase insulin secretion is dimished in the fetus, this is not due to an absolute deficiency of stored insulin.
(15) The distribution of the amino acid pairs, i, i + 1 in alpha-helical configurations does not differ from the random pairing.
(16) Male Sprague Dawley rats either trained (T, N = 9) for 11 wk on a rodent treadmill, remained sedentary, and were fed ad libitum (S, N = 8) or remained sedentary and were food restricted (pair fed, PF, N = 8) so that final body weights were similar to T. After training, T had significantly higher red gastrocnemius muscle citrate synthase activity compared with S and PF.
(17) We propose that, for a GC base pair in B conformation, there are two amino proton exchangeable states--a cytosine amino proton exchangeable state and a guanine amino proton exchangeable state; both require the disruption of only the corresponding interbase H bond.
(18) Whole gastrocnemius muscles were incubated in Ringer's solution enriched with H2-17O; the paired contralateral gastrocnemius muscles were incubated in a similar solution enriched with deuterons, as well.
(19) The building block of cytokeratin IFs is a heterotypic tetramer, consisting of two type I and two type II polypeptides arranged in pairs of laterally aligned coiled coils.
(20) For example, stem pairing with a sequence other than wild-type resulted in normal protein binding in vitro but derepression of protein synthesis in vivo.