(a.) Obtained by derivation; derived; not radical, original, or fundamental; originating, deduced, or formed from something else; secondary; as, a derivative conveyance; a derivative word.
(n.) That which is derived; anything obtained or deduced from another.
(n.) A word formed from another word, by a prefix or suffix, an internal modification, or some other change; a word which takes its origin from a root.
(n.) A chord, not fundamental, but obtained from another by inversion; or, vice versa, a ground tone or root implied in its harmonics in an actual chord.
(n.) An agent which is adapted to produce a derivation (in the medical sense).
(n.) A derived function; a function obtained from a given function by a certain algebraic process.
(n.) A substance so related to another substance by modification or partial substitution as to be regarded as derived from it; thus, the amido compounds are derivatives of ammonia, and the hydrocarbons are derivatives of methane, benzene, etc.
Example Sentences:
(1) The interaction of the antibody with both the bacterial and the tissue derived polysialic acids suggests that the conformational epitope critical for the interaction is formed by both classes of compounds.
(2) The vascular endothelium is capable of regulating tissue perfusion by the release of endothelium-derived relaxing factor to modulate vasomotor tone of the resistance vasculature.
(3) Leumorphin is a 29-amino-acid peptide derived from preproenkephalin B. Intracerebroventricular (i.c.v.)
(4) A full-length cDNA encoding porcine heart aconitase was derived from lambda gt10 recombinant clones and by amplification of the 5' end of the mRNA.
(5) In animal experiments pharmacological properties of the low molecular weight heparin derivative CY 216 were determined.
(6) In addition to their involvement in thrombosis, activated platelets release growth factors, most notably a platelet-derived growth factor (PDGF) which may be the principal mediator of smooth muscle cell migration from the media into the intima and of smooth muscle cell proliferation in the intima as well as of vasoconstriction.
(7) Release of 51Cr was apparently a function of immune thymus-derived lymphocytes (T cells) because it was abrogated by prior incubation of spleen cells with anti-thymus antiserum and complement but was undiminished by passage of spleen cells through nylon-wool columns.
(8) PMNs could be primed for PMA-triggered oxidative burst by muramyl peptide molecules (MDP) and two of its adjuvant active nonpyrogenic derivatives.
(9) Recent studies have shown that an aberration in platelet-derived growth factor gene expression is unlikely to be a factor in proliferation of smooth-muscle cells.
(10) The macrophage-derived product, interleukin 1 (IL 1) is thought to play an important regulatory role in the proliferation of T lymphocytes; however, its mechanism of action is unknown.
(11) In the upper limb and facial forms of familial amyloidotic polyneuropathy first recorded in Swiss and Finns respectively, the differences in their patterns of neurological disease and ocular lesions could be the result of their amyloids deriving from proteins other than prealbumin.
(12) The antiproliferative activity of IFN was studied using the parental L cell line, a tk- derivative, and a tk- (tk+) subline into which the tk gene of herpes simplex virus was introduced.
(13) Bipolar derivations with the maximum PSE always included the locations with the maximum PSE obtained from a linked ears reference.
(14) Only those derivatives with a free amino group and net positive charge in the side chain were effective.
(15) Northern blot analysis with an 18-mer radiolabelled oligonucleotide, derived from an ALP specific cDNA clone, revealed a specific mRNA of about 700-800 nucleotides in HS-24 tumor cells.
(16) The mortality data were derived from the reports by Miyagi Prefectural Government.
(17) Ferrocene derivatives, in general, show a degree of versatility, coupling the electron-transfer reactions of many enzymes.
(18) The ADAM derivative of carnitine was separated from decomposition products of the reagent and related compounds such as amino acid derivatives on a silica gel column eluted with methanol-5% aqueous SDS-phosphoric acid (990:10:1).
(19) This doxorubicin derivative did not bind to Sepharose which was conjugated with cardiac actin.
(20) In the triploids, the 40 female chromosomes present (mouse, n = 20) were derived from a single diploid pronucleus formed after the extrusion of a first polar body, and following the monospermic fertilization of primary oocytes.
Naphthene
Definition:
(n.) A peculiar hydrocarbon occuring as an ingredient of Caucasian petroleum.
Example Sentences:
(1) Method of extraction-atomic absorption detection of arsenic in biologic material using naphthenic acid was developed and tested.
(2) When the hydrocarbons were incubated together with benzo(a)pyrene, enhancement of the transformation frequency was observed for the naphthene 1,2-dimethylcyclohexane and the iso-alkanes 2-methylheptane and 2-methyloctane.
(3) The method is based on the resolution of the diastereoisomeric amides formed on reaction of the ibuprofen enantiomers with S-1-(naphthen-1-yl)ethylamine using p-chlorophenoxy-acetic acid as internal standard.
(4) The content of n-isoalkans, isoprenoids, monocycloparaffins, bi-and tricyclic naphthenes, steranes and terpenes, olifines, squalene and other polyenes in sunflower, cotton, soya oils and oilcakes was measured.
(5) This report suggests the need for further study of the absorption and relative toxicity of copper naphthenate.
(6) Owing to a car accident, the clothes of a injured joiner were permeated with a timber impregnating product containing 51.8% of mineral spirit (a mixture of naphthenes, aromatic and aliphatic hydrocarbons).
(7) 3H-Dodecylcyclohexane was incorporated in rat diet in order to study the metabolic utilization by mammals of a monocycloparaffin chosen as a typical naphthenic constituent of mineral oils.
(8) Naphthenic hydrocarbons, mainly of fossil origin, are widespread in our environment, and contaminate the food chains; they are also used as food additives.
(9) The toxicokinetic properties of C6 to C10 n-alkanes, aromates and naphthenes have been investigated in rats during inhalation of 100 p.p.m.
(10) Raised lead values were maximal among diesel engine workers who are exposed to high pressure-resistant lubricants containing lead naphthenate.
(11) Examples include decalin, an alicyclic hydrocarbon; JP5 jet fuel, a mixture of C12-15 straight and branched chain hydrocarbons; C10-11 isoparaffinic hydrocarbons; Stoddard solvent, a mixture of straight and branched-chain paraffins, naphthenes, and alkyl aromatic hydrocarbons; 2,2,4-trimethylpentane, a branched chain hydrocarbon and d-limonene, an aromatic hydrocarbon.
(12) The influence of cyclopentane naphthenic acids, which is one of active initiations of naphthalane for the process of fixation of the connection and the synthesis of proteins has been studied.
(13) This is the first reported instance in which the use of lead naphthenate has been associated with increased lead absorption in humans.
(14) The results of this study seem to verify that absorption of lead through the skin does occur and the findings confirm lead naphthenate to be more toxic than lead acetate.
(15) A highly naphthenic crude oil from the San Joaquin Valley, California, showed the greatest inhibitory activity in the least abundant (2%), low boiling point (smaller than 245 degrees C) fraction and the least inhibitory activity in the highest boiling point (greater than 482 degrees C) most abundant (47%) fraction.
(16) b) Naphthenic hydrocarbons show low concentrations in blood and high concentrations in organs.
(17) We report a family of three individuals who lived in a home where copper naphthenate was sprayed on the inner foundation.
(18) Despite widespread industrial use of copper naphthenate, there are no reports of the relationship of copper naphthenate and copper absorption in humans or animals.
(19) The analysis of naphthenic acid revealed that they may be used for tin detection in the cadaveric material due to their high complex-forming ability.
(20) Ascite cells were treated with naphthenic acid preparation, containing a mixture of naphthenic acids with average molecular weight equal to 240, and with a fraction of this preparation differing in the boiling temperature.