(n.) An oxide of a nonmetallic body or an organic radical, capable of forming an acid by uniting with the elements of water; -- so called because it may be formed from an acid by the abstraction of water.
Example Sentences:
(1) The 1-0-methylalduronic-acidmethylesters, obtained by the methanolysis of the polysaccharides, are reduced with boronhydrid to the corresponding methyl glycosides; there are split with acid to the aldoses, which are converted in pyridine with hydroxylamine to the aldoximes and than with acetic anhydride to the aldonitrilacetates, which can be separated by gaschromatography without difficulty.
(2) Several aminoacyl-tRNA synthetases are herein shown to catalyze the AMP----ADP and ADP----ATP exchange reactions (in the absence of tRNAs) by utilizing a transfer of the gamma-phosphate of ATP to reactive AMP and ADP intermediates that are probably the mixed anhydrides of the nucleotide and the corresponding amino acid.
(3) The aza analogue (RS)-3-hydroxy-2,5-pyrrolidinedione-3-acetic acid (6) of the five-membered citric anhydride (2) was prepared in the sequence citric acid----2-phenyl-1,3-dioxolan-4-one-5,5-diacetic acid (1)----citric acid beta-amide (3)----6 and used to resolve ambiguities in the mechanism of the citrate synthase reaction.
(4) The method involves solvent extraction of the compounds from plasma, derivatization with pentafluoropropionic anhydride and subsequent separation on a 3% OV-17 column.
(5) The 6alpha- and 6beta-testosterone derivatives were attached to BSA via a mixed anhydride coupling employing tributylamine and i minus-butylchlorocarbonate.
(6) It is concluded that the side product generated during the reaction of Fmoc-chloride with glutamic acid which is used for analysis of the latter is the N-protected internal anhydride and not the pyroglutamate as reported in the literature.
(7) When a larger excess of ethoxyformic anhydride was used for the lipase reaction, 2.8 histidine residues were ethoxyformylated and characterised as His-354, His-156 and His-75, which resulted in an 85% inhibition of the tributyrylglycerol hydrolysis by the enzyme.
(8) The three compounds, which all possess carboxylic acid group, were converted into their hexafluoro-2-propyl esters with hexafluoropropan-2-ol-pentafluoropropionic anhydride as reagent.
(9) New light-curable adhesive opaque resins were prepared using 4-methacryloxyethyl trimellitate anhydride (4-META), triethylene glycol dimethacrylate (TEGDMA), di (methacryloxyethyl) trimethylhexamethylene diurethane (UDMA) and titanium dioxide.
(10) Five microliters of acetic anhydride was added to the serum to convert all 5-ASA to Ac-5-ASA.
(11) The equilibrium constant for formation of the anhydride from the thil ester of enzyme and methyl 3-mercaptopropionate is 75 times larger than the equilibrium constant of 2.2 for the formation of N,O-diacetylhydroxylamine from acetohydroxamic acid and acetyl-CoA.
(12) For the quantitative determination of sulfolipids having long sugar chains, it is necessary to treat thin-layer chromatography plates with acetic anhydride before color development.
(13) We have changed the net charge to -6 by acylation with acetylcitric anhydride (a new acylating agent); this anionic derivative forms tetrameric helix at neutral pH, without salt, and at relatively low concentration, conditions under which the cationic MLT does not become helical.
(14) A sensitive potentiometric monitoring method was developed that permits the continuous measurement of the disolution profiles of methyl vinyl ether-maleic anhydride-acid copolymers and salt derivatives.
(15) Thromboxane B2 (TxB2) was coupled with beta-D-galactosidase by mixed anhydride reaction.
(16) To obtain a volatile histidine derivative it has been found necessary to add an antioxidant and to heat samples with ethoxyformic anhydride prior to injection.
(17) Bronchial provocation studies using alcoholic-saline solutions of phthalic anhydride and phthalic anhydride dust resulted in immediate airway obstruction.
(18) Acylation of glutamate dehydrogenase with ethoxyformic anhydride at pH6.1 led to the modification of three histidine residues with a corresponding loss of half the original activity.
(19) The extract of plasma or urine was treated with diazomethane followed by trifluoroacetic anhydride to convert I and II into their methyl ester trifluoroacetyl derivatives.
(20) The reaction was monitored by capillary gas chromatography after derivatization by trifluoroacetic anhydride.
Formally
Definition:
(adv.) In a formal manner; essentially; characteristically; expressly; regularly; ceremoniously; precisely.
Example Sentences:
(1) We present the analysis both formally and in geometric terms and show how it leads to a general algorithm for the optimization of NMR excitation schemes.
(2) If Lagarde had been placed under formal investigation in the Tapie case, it would have risked weakening her position and further embarrassing both the IMF and France by heaping more judicial worries on a key figure on the international stage.
(3) The appointment of the mayor of London's brother, who formally becomes a Cabinet Office minister, is one of a series of moves designed to strengthen the political operation in Downing Street and to patch up the prime minister's frayed links with the Conservative party.
(4) Eleven per cent of the courses that responded provided no formal substance misuse training.
(5) However ITV deny that any approach or offer, formal or informal, has been made.
(6) The wives and girlfriends who were originally invited to accompany their playing partners on the World Cup tour have had their invitations formally rescinded.
(7) This formalism allows resolution of the intrinsic protein folding-unfolding parameters (enthalpy, entropy, and heat capacity changes) as well as the ligand interaction parameters (binding stoichiometry, enthalpy, entropy, and heat capacity changes).
(8) This demonstrates a considerable range in surgeons' attitudes to day surgery despite its formal endorsement by professional bodies, and identifies what are perceived as the organizational and clinical barriers to its wider introduction.
(9) Children as young as 18 months start by sliding on tiny skis in soft supple boots, while over-threes have more formal lessons in the snow playground.
(10) Britain and France formally announced this week they would abstain, along with Portugal and Bosnia.
(11) After the formal PIRC inquiry was triggered by the lord advocate, Frank Mulholland, Bayoh’s family said police gave them five different accounts of what had happened before eventually being told late on Sunday afternoon how he died.
(12) Instituut voor Sociale Geneeskunde, Vrije Universiteit (The process of directing self-care, informal and formal assistance).
(13) He was greeted in Kyoto by Abe, with the men dispensing with the formal handshake that starts most head of governments' greetings in favour of a full body hug.
(14) A formal notion of relatability is defined, specifying which physically given edges leading into discontinuities can be connected to others by interpolated edges.
(15) Formal audits of the continuing medical education activities of physicians licensed in Michigan were undertaken to assess compliance with a law mandating participation in 150 hours of continuing medical education each 3 years.
(16) His central focus was on the neutrality of government rules – or what he called (on p117), "the Rule of Law, in the sense of the rule of formal law, the absence of legal privileges of particular people designated by authority" – not the elimination of government rules: "The liberal argument is in favor of making the best possible use of the forces of competition as a means of coordinating human efforts, not an argument for leaving things just as they are."
(17) The Washington Post report is the latest in a flurry of unattributed articles suggesting that the Justice Department is unlikely to take up formal charges against Assange.
(18) The government will formally begin the sale of Royal Mail on Thursday by announcing its intention to float the 497-year-old postal service on the London Stock Exchange.
(19) His formal entry into the contest marks a key moment in the nascent race for the Republican nomination, which is set to be the most congested presidential primary either party has held since 1976.
(20) The formal results of the analysis show that when psychological considerations are incorporated into a state-dependent utility model, the normative results customarily obtained concerning value-of-life need to be qualified.