What's the difference between native and spontaneous?

Native


Definition:

  • (a.) Arising by birth; having an origin; born.
  • (a.) Of or pertaining to one's birth; natal; belonging to the place or the circumstances in which one is born; -- opposed to foreign; as, native land, language, color, etc.
  • (a.) Born in the region in which one lives; as, a native inhabitant, race; grown or originating in the region where used or sold; not foreign or imported; as, native oysters, or strawberries.
  • (a.) Original; constituting the original substance of anything; as, native dust.
  • (a.) Conferred by birth; derived from origin; born with one; inherent; inborn; not acquired; as, native genius, cheerfulness, simplicity, rights, etc.
  • (a.) Naturally related; cognate; connected (with).
  • (a.) Found in nature uncombined with other elements; as, native silver.
  • (a.) Found in nature; not artificial; as native sodium chloride.
  • (n.) One who, or that which, is born in a place or country referred to; a denizen by birth; an animal, a fruit, or vegetable, produced in a certain region; as, a native of France.
  • (n.) Any of the live stock found in a region, as distinguished from such as belong to pure and distinct imported breeds.

Example Sentences:

  • (1) After 2 weeks, the native and heterotopic pituitaries were assayed for SP, TSH, PRL, and LH.
  • (2) The mobility on sodium dodecyl sulfate-polyacrylamide gel electrophoresis is anomalous since the undenatured, cross-linked proteins have the same Stokes radius as the native, uncross-linked alpha beta gamma heterotrimer.
  • (3) The effects of in vivo administration of native prostaglandin E2 (PGE) on the cycling status of the granulocyte-monocyte progenitor cell (CFU-GM) were examined in a mouse model.
  • (4) This indicated that proteolysis at Lys1313-Glu also proceeded in native alpha 2M.
  • (5) Urine specimens from patient REE also contained a light chain fragment that lacked the first (amino-terminal) 85 residues of the native light chain but otherwise was identical in sequence to the light chain REE.
  • (6) As a Native American I am pretty sensitive to charges of racism and white supremacy,” the Oklahoma congressman added.
  • (7) The canine system allows quantitative separation of native heme containing alpha and beta chains which recombine to for tetrameric hemoglobin with normal functional properties (n = 2.17).
  • (8) We conclude that this enzyme is essentially identical to the native enzyme and should be very useful in the future study of this important hydroxylase.
  • (9) The molecule may already in its native form have an extended conformation containing either free sulfhydryl groups or small S-S loops not affecting mobility in SDS-PAGE.
  • (10) In 0.17 M Na+(aq), tRNA(Phe) exists in its native conformation and the number of strong binding sites (Ka greater than or equal to 10(4)) was estimated to be 3-4 by titration experiments, in agreement with X-ray structural data for crystalline tRNA(Phe) (Jack et al., 1977).
  • (11) At concentrations several hundredfold higher than the equivalents present in the minimum concentration of rat skin soluble collagen required for platelet aggregation, neither Hyl-Gal (at 29 muM) nor Hyl-Gal-Glc (at 18 muM) caused platelet aggregation or inhibited platelet aggregation by native collagen.
  • (12) The frequency of oesophageal cancer varies among the native and immigrant populations in different countries.
  • (13) 1H NMR spectroscopy has been used to characterize these proteins and to compare them to one another and to native antithrombin III.
  • (14) In the experiments to be reported here, computer-averaged EMG data were obtained from PCA of native speakers of American English, Japanese, and Danish who uttered test words embedded in frame sentences.
  • (15) Concanavalin A (con A) is a potent inhibitor of coagulant activity of native tissue factor.
  • (16) Binding of uPA to filters was blocked by a synthetic oligopeptide containing the known receptor binding region of native uPA.
  • (17) Refolding was observed by injection of denatured protein into columns having isocratic concentrations in the transition and native base-line zones.
  • (18) These two crystallins were compared with respect to their native molecular masses, subunit structures, peptide mapping and amino acid compositions in order to establish the identity of each crystallin.
  • (19) Hybridomas were selected on the basis of solid-phase reactivity with the purified native A transferase, cell immunofluorescence and immunoprecipitation of transferase activity, and absence of reactivity with blood group ABH carbohydrate determinants.
  • (20) Single-stranded circles did not form if a limited number of nucleotides were removed from the 3' ends of native molecules by Escherichia coli exonuclease III digestion prior to denaturation and annealing.

Spontaneous


Definition:

  • (a.) Proceding from natural feeling, temperament, or disposition, or from a native internal proneness, readiness, or tendency, without constraint; as, a spontaneous gift or proportion.
  • (a.) Proceeding from, or acting by, internal impulse, energy, or natural law, without external force; as, spontaneous motion; spontaneous growth.
  • (a.) Produced without being planted, or without human labor; as, a spontaneous growth of wood.

Example Sentences:

  • (1) Spectral analysis of spontaneous heart rate fluctuations, a powerful noninvasive tool for quantifying autonomic nervous system activity, was assessed in Xenopus Laevis, intact or spinalized, at different temperatures and by use of pharmacological tools.
  • (2) Hypothyroidism complicated by spontaneous hyperthyroidism is an interesting but rare occurrence in the spectrum of autoimmune thyroid disorders.
  • (3) Spontaneous locomotor activity was lower in naloxone-infused rats on day 3 only.
  • (4) administration of the potent short-acting opioid, fentanyl, elicited inhibition of rhythmic spontaneous reflex increases in vesical pressure (VP) evoked by urinary bladder distension.
  • (5) Sample processing appears effective in avoiding spontaneous oxalogenesis.
  • (6) Thus, B cells that grow spontaneously from the peripheral blood of SS patients spontaneously produce a B-cell growth factor.
  • (7) They can rarely be detected spontaneously but most often are provoked.
  • (8) The ACTH deficiency recovered spontaneously, with normal cortisol responses to depot Synacthen (greater than 1380 at 6 h) and hypoglycemia (peak, 590) 14 and 18 months postpartum, respectively.
  • (9) The number of peripheral blood lymphocytes (PBL) producing IgM (spontaneous and pokeweed mitogen (PWM) stimulated) at the end of a seven day culture period was similar in PBC patients and control subjects while the amount of IgM synthesized (spontaneous and PWM stimulated) during this period was significantly greater in the patient group, implying that the amount of IgM produced per B cell was increased in PBC.
  • (10) In in vitro preparations GABA (10(-7) - 10(-3) M) elicited a dose-dependent relaxation; a decrease in the spontaneous contractions was sometimes observed.
  • (11) Fractures which occur near the base of the dens have a low propensity to unite spontaneously.
  • (12) The cell fermentation culture with a stabilized pH value was better than the culture with the pH value changing spontaneously on saponin content, growth rate and biomass.
  • (13) Recovery was spontaneous and no antimicrobial agents were required.
  • (14) Over a period of 9 months a 12-year-old girl spontaneously developed a palpable cystic tumor in the upper eye lid which led to an indentation and downward displacement of the globe.
  • (15) In the dark the 6-azidoflavoproteins are quite stable, except for L-lactate oxidase, where spontaneous conversion to the 6-amino-FMN enzyme occurs slowly at pH 7.
  • (16) Spontaneous reports of suspected adverse reactions may be the only way of revealing very rare events but they present great difficulties of rational interpretation.
  • (17) In addition, spontaneous platelet aggregation is increased when vegetations are present on cardiac valves.
  • (18) Media made hyperosmotic with sucrose increase the frequency of spontaneously released quanta of transmitter, or miniature excitatory postsynaptic potentials (MEPSPs).
  • (19) There is no convincing evidence that immunosuppression is effective, also because the natural history of the disease is characterised by a spontaneous disappearance of the factor VIII-C inhibitor.
  • (20) By contrast, the concentrations of IgA1 kappa and IgA1 lambda in PBMC culture supernatants, both spontaneous and PWM-stimulated, were identical in patients and controls.