What's the difference between constraint and spontaneous?

Constraint


Definition:

  • (n.) The act of constraining, or the state of being constrained; that which compels to, or restrains from, action; compulsion; restraint; necessity.

Example Sentences:

  • (1) Poor lipophilicity and extremely low plasma concentrations impose severe constraints.
  • (2) Specifically, we apply techniques of data preprocessing, orthogonality constraints, and validation of solutions in a complete TC analysis, for the first time using actual MEP data.
  • (3) When this constraint was released by various treatments altering membrane structure UDP-glucose markedly inhibited bilirubin glucuronidation.
  • (4) For each theory, a constraint on preformance is proposed based on interference between the "analytic" and "synthetic" pitch perception modes.
  • (5) spectroscopy for the collection of conformational constraints, calculation of the protein structure from the n.m.r.
  • (6) Subjects initially chose to work for the higher rated food, but as the constraints for this food increased, subjects chose to work for the lower rated food.
  • (7) Dictated by underlying physicochemical constraints, deceived at times by the lulling tones of the siren entropy, and constantly vulnerable to the vagaries of other more pervasive forms of biological networking and information transfer encoded in the genes of virus and invading microorganisms, protein biorecognition in higher life forms, and particularly in mammals, represents the finely tuned molecular avenues for the genome to transfer its information to the next generation.
  • (8) Continuing pressure on household finances during the next 12 months will no doubt remain a constraint."
  • (9) Lateralization may be an expression of reflex constraints bound initially to the infant's tonic-neck posture, with later development less reflex-patterned during the acquisition of more sophisticated information-processing strategies.
  • (10) His anti-politics act may just be a shtick – pretending he's still on Have I Got News for You, satirising politics even though he's right at the centre of it – but it liberates him from the usual constraints.
  • (11) Given that lattice constraints strongly inhibit large-scale conformational changes these results allow us to identify the average solution structure with the 'open' conformer determined crystallographically.
  • (12) A dynamic optimization technique to minimize jerk cost under the constraint on jerk input was applied to interpret the results, assuming that a major goal of skilled movements was to produce optimally smooth movements.
  • (13) Its main advantages, when compared to previously available programs using the variable target function algorithm, are a significant reduction of the computation time, and a novel treatment of experimental distance constraints involving diastereotopic groups of hydrogen atoms that were not individually assigned.
  • (14) For one, the ability to raise a larger deposit is acting as a constraint.
  • (15) When the constraints are high, a Michaelis-Menten equation can be used to model the kinetics for interfacial concentrations lower than the concentration leading to the maximum reaction rate.
  • (16) Estimators of the model parameters are defined under general exact and stochastic linear constraints.
  • (17) A careful reorganization of priorities would thus be helpful in improving neonatal care in Jamaica, even in the presence of financial constraints.
  • (18) Emergence and spread of antibiotic-resistant bacteria is augmented in settings in which treatment may be inadequate because of socioeconomic constraints and where there is crowding and poor sanitation.
  • (19) The estrogen receptor seems to have a moderate tolerance for bulky substituents: All of the halogen and halomethyl substituents bind with an affinity at least 50% that of estradiol; in the three atom alkyl series, the affinity declined markedly from propargyl (44%) and allyl (38%) to propyl (5%), suggestive of detailed steric constraints or a preference for unsaturation.
  • (20) Bias is controlled by the use of least-squares curve fitting for all assays, and constraints on the elimination of outlier points.

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.