(a.) Consisting of four; by fours, or in sets of four.
(a.) Later than, or subsequent to, the Tertiary; Post-tertiary; as, the Quaternary age, or Age of man.
(n.) The number four.
(n.) The Quaternary age, era, or formation. See the Chart of Geology.
Example Sentences:
(1) The quaternary structure of ribonucleotide reductase of Escherichia coli was investigated, with the use of purified B1 and B2 proteins and bifunctional cross-linking agents.
(2) The sensitivity of an indirect fluorescent antibody (IFA) test (screening test) for the detection of antibodies to cytomegalovirus (CMV) was examined by using 128 serum specimens and quaternary aminoethyl (QAE)-Sephadex A50 column chromatography to separate IgM from IgG class antibodies.
(3) Modifications in quaternary structure induced by variation of these physicochemical parameters were followed by means of X-ray and quasi-elastic light-scattering and quantified in terms of weight average molecular weight (M), radius of gyration (Rg) and hydrodynamic radius (Rh).
(4) These features of the new quaternary structure, denoted Y, may therefore be representative of quaternary states that occur transiently along pathways between the normal unliganded, T, and liganded, R, hemoglobin structures.
(5) On the other hand, the lack of any twitch-potentiating effect by naloxone methylbromide, a quaternary derivative of naloxone, suggests that opioids which potentiate the twitch must enter the lipid phase of the membrane to act.
(6) Two additional quaternary ammonium compounds, tetraethylammonium and N1-methylnicotinamide, were not significantly bound to either tissue.
(7) These effects are due to residual silanols on the surface of the column material and may be remedied by adding suitable amines or quaternary ammonium ions to the eluent as anti-tailing agents.
(8) A quantitative thin layer chromatographic (TLC) method has been developed for determination of the antiarrhythmic quaternary ammonium compound N,N-bis (phenylcarbamoyl methyl) dimethylammonium chloride (QX-572) in biological materials.
(9) While currently available antiarrhythmic agents fail to achieve the desired effect, the recent evidence dealing with the quaternary ammonium derivatives of propranolol, lidocaine, and bretylium provides some hope for the future development of drugs with antiarrhythmic as well as antifibrillatory properties which may provide a therapeutic approach to the prevention of SCD.
(10) In case of non hydrolyzing salts, the quaternary ammonium bromide salts it could not surely be proved by the applied methods whether primary ion exchange had been followed by secondary ion exchange or only primary ion exchange had occurred.
(11) Naloxone methobromide (naloxone MB), a quaternary compound, was also effective in antagonising this effect of nalbuphine but was less effective than naloxone hydrochloride.
(12) Temperature, protein tertiary and quaternary structure, chain heterogeneity, and ligand rebinding subsequent to CO photolysis all affect the line width and position of this transition.
(13) Iodine-containing solutions and quaternary ammonium compounds rarely sensitize.
(14) Administration of the quaternary derivative, neostigmine, indicated that the effects of scopolamine at 22 days were probably central in origin.
(15) The relationships between thermodynamic quantities in a quaternary system of electrolytes are discussed in Appendix 2.
(16) Liquid crystals possess high density packing of DNA molecules complexed with quaternary ammonium salt of oligomer-25 conidin.
(17) Its quaternary dimethyl derivative, designated as pranolium was firstly prepared by Lucchesi.
(18) On the basis of these structural studies, we discuss the relationships between the conformational differences in the allosteric site and the small changes in the quaternary structure within the T form to the possible mechanisms for CTP inhibition and ATP activation.
(19) N,N-dimethylanatoxin (DMAnTX), the quaternary derivative of the potent nicotinic agonist (+)-anatoxin-a (AnTX), has been evaluated for potency and efficacy at nicotinic acetylcholine receptors of frog motor endplates and Torpedo electric organs.
(20) Reaction of the thiol reagent 5,5'-dithio-bis(2-nitrobenzoic acid) (Nbs2) with the brain-specific protein S-100 favours stabilization of the quaternary structure of the protein via disulfide bond formation.
Speaking
Definition:
(p. pr. & vb. n.) of Speak
(a.) Uttering speech; used for conveying speech; as, man is a speaking animal; a speaking tube.
(a.) Seeming to be capable of speech; hence, lifelike; as, a speaking likeness.
Example Sentences:
(1) But when he speaks, the crowds who have come together to make a stand against government corruption and soaring fuel prices cheer wildly.
(2) Whittingdale also defended the right of MPs to use privilege to speak out on public interest matters.
(3) The cause has been innumerable "VIP movements", as journeys undertaken by those considered important enough for all other traffic to be held up, sometimes for hours, are described in South Asian bureaucratic speak.
(4) Many speak about how yoga and surfing complement each other, both involving deep concentration, flexibility and balance.
(5) Speaking to pro-market thinktank Reform, Milburn called for “more competition” and said the shadow health team were making a “fundamental political misjudgment” by attempting to roll back policies he had overseen.
(6) Speaking to a handpicked audience of community representatives, the prime minister said he had not allowed the EU to get its way.
(7) Technically speaking, this modality of brief psychotherapy is based on the nonuse of transferential interpretations, on impeding the regression od the patient, on facilitating a cognitice-affective development of his conflicts and thus obtain an internal object mutation which allows the transformation of the "past" into true history, and the "present" into vital perspectives.
(8) The distribution of cells at the stage of DNA synthesis and mitosis in all the parietal peritoneum speaks of the absence of special proliferation zones.
(9) Again, the boys in care that he abused now speak to us as broken adults.
(10) It’s the same story over and over.” Children’s author Philip Ardagh , who told the room he once worked as an “unprofessional librarian” in Lewisham, said: “Closing down a library is like filing off the end of a swordfish’s nose: pointless.” 'Speak up before there's nothing left': authors rally for National Libraries Day Read more “Today proves that support for public libraries comes from all walks of life and it’s not rocket science to work out why.
(11) Speaking in the BBC's Radio Theatre, Hall will emphasise the need for a better, simpler BBC, as part of efforts to streamline management.
(12) The ability to demonstrate selective augmentation of the functional matrix-associated receptor population, and our recent results showing that gonadotropes are indeed the responsive cells (Singh P, Muldoon TG, unpublished observations) speak to the specificity and relevance of these findings.
(13) Clare Gills, an American journalist and friend of Foley, wrote in 2013: “He is always striving to get to the next place, to get closer to what is really happening, and to understand what moves the people he’s speaking with.
(14) There is a certain degree of swagger, a sudden interruption of panache, as Alan Moore enters the rather sterile Waterstones office where he has agreed to speak to me.
(15) The debate certainly hit upon a larger issue: the tendency for people in positions of social and cultural power to tell the stories of minorities for them, rather than allowing minority communities to speak for themselves.
(16) Speaking to reporters at the Pentagon, People's Liberation Army's chief of the general staff Gen Fang Fenghui also warned that the US must be objective about tensions between China and Vietnam or risk harming relations between Washington and Beijing.
(17) Speaking at The Carbon Show in London today, Philippe Chauvancy, director at climate exchange BlueNext, said that the announcement last week that it is to develop China's first standard for voluntary emission reduction projects alongside the government-backed China Beijing Environmental Exchange, could lay the foundations for a voluntary cap-and-trade scheme.
(18) "There were around 50 attackers, heavily armed in three vehicles, and they were flying the Shebab flag," Maisori added, speaking from the town, where several buildings including hotels, restaurants, banks and government offices were razed to the ground.
(19) Maryam Namazie, an Iranian-born campaigner against religious laws, had been invited to speak to the Warwick Atheists, Secularists and Humanists Society next month.
(20) A doctor the Guardian later speaks to insists it makes no sense.