What's the difference between spontaneous and unstudied?

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.

Unstudied


Definition:

  • (a.) Not studied; not acquired by study; unlabored; natural.
  • (a.) Not skilled; unversed; -- followed by in.
  • (a.) Not spent in study.

Example Sentences:

  • (1) This set of deuterated coenzymes was used to determine the stereospecificity of the previously unstudied 7 alpha-hydroxysteroid dehydrogenase from Escherichia coli (NAD-dependent) and 12 alpha-hydroxysteroid dehydrogenase from Clostridium group P (NADP-dependent).
  • (2) Either ribosome assembly in the mutant differs from that in the wild-type strain, or 47S particles represent a hitherto unstudied stage in the synthesis of 50S ribosomes.
  • (3) These parameters have hitherto been largely unstudied.
  • (4) CONCLUSIONS--Further studies should specifically address combined treatment approaches, optimal treatment length and timing, effects of comorbidity, and unstudied traumatized populations.
  • (5) Furthermore, by applying this technique, it was shown that the previously unstudied enzymes D-beta-hydroxybutyrate and 4-aminobutanal dehydrogenases are B- and A-stereospecific enzymes, respectively.
  • (6) Its effect on the uterine arterial circulation is unstudied and yet dihydroergotamine is widely used to treat postural hypotension in pregnant and nonpregnant women.
  • (7) Large variations in nutritional intake have profound effects on the GH-insulin-like growth factor-I (IGF-I) axis in children and adults, but the effect of normal variations in nutrition on IGF-I concentrations is largely unstudied, particularly during puberty.
  • (8) Since other unstudied males in the family died in infancy, we questioned whether this T cell defect was more profound in early life.
  • (9) Although it is known that cardiac striated muscle is relatively spared in undernutrition, and that disease-induced reductions in lean body mass do not spare respiratory muscle, the effects of undernutrition per se on the structure and function of the respiratory muscle are largely unstudied in humans.
  • (10) The previously unstudied dose-response also was evaluated in our study.
  • (11) A further study of the Tgamma-chain in a variety of conditions has revealed its presence in the cord bloods of ethnic groups previously unstudied.
  • (12) The problem of DNA restriction in eucaryotes is absolutely unstudied and requires experimental development.
  • (13) There were three types of test stimuli: target stimuli, which had been presented during study, conjunction stimuli, constructed by combining the features of separate study stimuli, and feature stimuli, in which studied stimulus features were combined with new, unstudied, features.
  • (14) The authors studied 300 Vietnam veterans admitted to a general hospital to determine their level of symptomatology and to gather data on this previously unstudied group.
  • (15) Subcellular fractionation by differential centrifugation was performed on two previously unstudied marine sponges that predominantly contain either conventional (Reniera sp.)
  • (16) Although some individuals of Barrio San Antonio have sought therapy, this population and area have been largely unstudied and have not up to the present been involved in control or mass chemotherapy programs.
  • (17) These findings indicate that bile duct ligation provides a method for manipulating the in vivo transcytotic pathway and for accumulating previously unstudied transcytotic carriers in hepatocytes.
  • (18) The frequencies of 32 HLA antigens of the A and B series were determined in a previously unstudied population of Mexican-Americans in South Texas.
  • (19) Public health educational campaigns can attract large numbers of one-time participants, but the impact on subsequent behavior remains unstudied.
  • (20) By sum of results of investigation of its physicochemical properties and biological activity, the polypeptide represents previously unstudied blood whey factor.

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