(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.
Voluntary
Definition:
(v. t.) Proceeding from the will; produced in or by an act of choice.
(v. t.) Unconstrained by the interference of another; unimpelled by the influence of another; not prompted or persuaded by another; done of his or its own accord; spontaneous; acting of one's self, or of itself; free.
(v. t.) Done by design or intention; intentional; purposed; intended; not accidental; as, if a man kills another by lopping a tree, it is not voluntary manslaughter.
(v. t.) Of or pertaining to the will; subject to, or regulated by, the will; as, the voluntary motions of an animal, such as the movements of the leg or arm (in distinction from involuntary motions, such as the movements of the heart); the voluntary muscle fibers, which are the agents in voluntary motion.
(v. t.) Endowed with the power of willing; as, man is a voluntary agent.
(v. t.) Free; without compulsion; according to the will, consent, or agreement, of a party; without consideration; gratuitous; without valuable consideration.
(v. t.) Of or pertaining to voluntaryism; as, a voluntary church, in distinction from an established or state church.
(n.) One who engages in any affair of his own free will; a volunteer.
(n.) A piece played by a musician, often extemporarily, according to his fancy; specifically, an organ solo played before, during, or after divine service.
(n.) One who advocates voluntaryism.
Example Sentences:
(1) "Especially at a time when they are turning down voluntary requests and securing the positions of senior managers."
(2) Voluntary intake and nutritive value of diets selected by goats grazing a shrubland at Marin county, N.L., Mexico were determined.
(3) During ischaemia M1 stretch responses showed a more rapid and pronounced decline than did M2 responses and were abolished before voluntary power was appreciably affected.
(4) Decreased maximal voluntary squeeze pressures were less severe in continent patients with multiple sclerosis than in incontinent patients with multiple sclerosis.
(5) He got away with a lesser charge of voluntary manslaughter and served five years.
(6) Speaking at The Carbon Show in London today, Philippe Chauvancy, director at climate exchange BlueNext, said that the announcement last week that it is to develop China's first standard for voluntary emission reduction projects alongside the government-backed China Beijing Environmental Exchange, could lay the foundations for a voluntary cap-and-trade scheme.
(7) Surface EMGs at rest and at voluntary eyelid opening after eyelid closing were investigated.
(8) Voluntary entropion, which has been reported only once before, was photographically documented in a 12-year-old girl.
(9) Criteria for evaluating the data were scanning pattern (voluntary preferred reading direction) and reading performance.
(10) The atrophies of motor cortex seemed to be responsible for the disorder of voluntary movement.
(11) The Coalition has also been warned about the costs of voluntary grants schemes.
(12) Lloyds said it would achieve many of the job cuts through making less use of contractors and voluntary severance but admitted that some compulsory redundancies may be inevitable.
(13) But there is one hitch: the four-storey building in Hammersmith is already home to more than 20 voluntary groups working with refugees, the homeless, former young offenders and a range of ethnic minorities including Kurds, Iranians and Iraqis – and they will have to move.
(14) The "size principle" is known to dictate the sequence of recruitment of motor neurons during voluntary or reflex activation of muscles.
(15) It is suggested that contracting extrafusal muscle fibres can modulate the discharge pattern of spindle endings and contribute to the variability of discharge during a voluntary contraction.
(16) In erect subjects, voluntary changes of shape at FRC did not change regional volume distribution.
(17) The centrally generated ;effort' or direct voluntary command to motoneurones required to lift a weight was studied using a simple weight-matching task when the muscles lifting a reference weight were weakened.
(18) Both the extensor indicis and the abductor pollicis longus are functional synergists and are under voluntary control of the brain.
(19) So far there have been 50 voluntary redundancies from editorial and a further 82 commercial jobs have been cut.
(20) fbi justified homicide chart Academics and specialists have long been aware of flaws in the FBI numbers, which are based on voluntary submissions by local law enforcement agencies of paperwork known as supplementary homicide reports.