(n.) The act of reversing; the causing to move or face in an opposite direction, or to stand or lie in an inverted position; as, the reversal of a rotating wheel; the reversal of objects by a convex lens.
(n.) A change or overthrowing; as, the reversal of a judgment, which amounts to an official declaration that it is false; the reversal of an attainder, or of an outlawry, by which the sentence is rendered void.
Example Sentences:
(1) This trend appeared to reverse itself in the low dose animals after 3 hr, whereas in the high dose group, cardiac output continued to decline.
(2) Application of 40 microM NiCl2 reversibly blocked It while leaving Is intact, whereas 20 microM CdCl2 reversibly blocked Is, but not It.
(3) The outward currents are sensitive to TEA and their reversal potentials differ.
(4) With NaCl as the major constituent of the bathing solution (potassium-free pipette and external solutions) the reversal potential (Er) of the noradrenaline-evoked current was about 0 mV.
(5) The HBV infection was tested by the reversed passive hemagglutination method for the HBsAg and by the passive hemagglutination method for the anti-HBs at the time of recruitment in 1984.
(6) If the method was taken into routine use in a diagnostic laboratory, the persistence of reverse passive haemagglutination reactions would enable grouping results to be checked for quality control purposes.
(7) Tests showed the cells survive and function normally in animals and reverse movement problems caused by Parkinson's in monkeys.
(8) In dorsoventral (DV) reversed wings at both shoulder or flank level, the motor axons do not alter their course as they enter the graft.
(9) Head-injured patients had a low thyroxine (T4), low triiodothyronine (T3), and high reverse T3.
(10) Dilutional studies comparing the mechanism of inhibition of monoamine oxidase produced by Gerovital H3 and by ipronizid demonstrated that Gerovital H3 was a reversible inhibitor of monoamine oxidase.
(11) Nucleotide, which is essential for catalysis, greatly enhances the binding of IpOHA by the reductoisomerase, with NADPH (normally present during the enzyme's rearrangement step, i.e., conversion of a beta-keto acid into an alpha-keto acid, in either the forward or reverse physiological reactions) being more effective than NADP.
(12) An axillo-axillary bypass procedure was performed in a high-risk patient with innominate arterial stenosis who had repeated episodes of transient cerebral ischemia due to decreased blood flow through the right carotid artery and reversal of blood flow through the right vertebral artery.
(13) What reforms there were could also be reversed, she warned.
(14) No reversions to wild-type levels were observed in 555 heterozygous offspring of crosses between homozygous Campines and normals.
(15) We have compared two new methods (a solvent extraction technique and a method involving a disposable, pre-packed reverse phase chromatography cartridge) with the standard method for determining the radiochemical purity of 99Tcm-HMPAO.
(16) Sickle and normal discocytes both showed membrane elasticity with reversion to original cell shape following release of the cell from its aspirated position at the pipette tip.
(17) These antagonists reverse NMDA-mediated long term influence in these brain areas.
(18) For dental procedures requiring tracheal intubation, one could perhaps use non-depolarizing muscle relaxants, like pancuronium, with reversal at the end of the procedure.
(19) We have recently described a nonnucleoside compound that specifically inhibits the reverse transcriptase of human immunodeficiency virus type 1 (HIV-1), the causative agent of AIDS.
(20) We have investigated some of the factors which affect the retention times of these substances in reversed-phase HPLC on columns of 5-micron octadecylsilyl silica.
Template
Definition:
(n.) Same as Templet.
Example Sentences:
(1) These lysates are comparable to those of Escherichia coli in transcriptional and translational fidelity and efficiency in response to a given template DNA.
(2) The RNA polymerase activity was tested after the solubilization and chromatographic resolution of the three types of polymerases with exogenous template.
(3) Gene 4 protein does not catalyze the hydrolysis of NTPs in the presence of duplex DNA, nor can T7 DNA polymerase use duplex DNA as a template.
(4) Elongation of existing RNA primers by the human polymerase-primase was semi-processive; following primer binding the DNA polymerase continuously incorporated 20 to 50 nucleotides, then it dissociated from the template DNA.
(5) Lysates of cells were compared to purified DNA as PCR template.
(6) Infidelity of replication is a hallmark of the HIV-1 RT, and replication errors by the enzyme on RNA and DNA templates are discussed.
(7) This suggested that carcinogen-induced error incorporation during DNA synthesis was restricted solely to the treatment of a deoxynucleotide template.
(8) Globin cDNA was used as the template for the synthesis of a complementary strand (ccDNA) by avian myeloblastosis virus DNA polymerase.
(9) In some cases, effective transcription requires supercoiling of such mutant template.
(10) Previous studies demonstrated that, when poly(dT).oligo(dA) was used as a template-primer, both proteins were required for poly(dA) synthesis.
(11) VZV TK templates were linearized at internal restriction sites and RNAs transcribed from these templates directed the synthesis of polypeptides with sizes consistent with the colinearity of the VZV TK gene.
(12) alpha 1 and alpha 2 were very similar as DNA polymerases in their sensitivity to several inhibitors and their preference for template-primers, except that alpha 1 had a slightly greater preference for poly (dT) X (rA)10 than alpha 2 did.
(13) DNA membrane complexes from sucrose gradients, as well as the crude M-band preparation and a non-membrane-associated DNA fraction from nuclei can synthesize DNA in vitro without the addition of an external DNA template or DNA polymerase.
(14) Parameters affecting assembly of these complexes were sequences in circular DNA templates, sizes and sequences of linear DNA templates, temperature and incubation time.
(15) Polyacrylamide gel electrophoresis showed that termination of DNA synthesis occurred at least as frequently opposite as 3' to a modified deoxyguanosine in the template.
(16) This modification improves the convergence properties of the network and is used to control a switch which activates the learning or template formation process when the input is "unknown".
(17) While it has been possible to readily produce large numbers of such templates from M13 or other single-stranded vectors for several years, the sequencing of double-stranded DNA templates using the ABI 373 DNA Sequencer has had a considerably lower success rate.
(18) The predominant activity is that of a DNA polymerase preferring a DNA-RNA hybrid as the template.
(19) The sites for replication stoppage as well as the lack of a Mn2+ effect on adducted templates have implications for the mechanisms of mutagenesis by activated AFB1.
(20) Synthesis with denatured DNA as template presumably proceeds from 3'-hydroxyl termini formed at loop-back regions since the synthesized DNA product and template are covalently linked.