(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.
Unplanned
Definition:
Example Sentences:
(1) Differences in incidence of unplanned pregnancies among women was more a result of socioeconomic circumstance and the tendency to have a large family than attitude towards children.
(2) Seventy-five children, aged 8 to 12, who experienced unplanned hospitalizations were studied.
(3) In September-December 1988 in Australia, at least 1490 couples in metropolitan Perth completed a questionnaire on contraceptive use and unplanned pregnancy.
(4) For example, many recent pregnancies were reported to be unplanned.
(5) All of which point to an urgent need for a multidisciplinary and holistic approach to age-related sex education for adolescents of both sexes and their parents; socio-economic problems facing the family; ways of preventing school drop out and further unplanned and unwanted pregnancies among teenagers.
(6) national program strategies must be devoted to reducing the level of unmet need for the following women: 1) nonusers who are at risk of an unplanned pregnancy and need contraception; 2) users who need better contraceptive methods; 3) nonusers and users who need a safe, accessible method of pregnancy termination; and 4) nonusers and users who need more comprehensive sexual and reproductive health services.
(7) Despite dissemination of modern contraceptive techniques among college women, unplanned pregnancy and pregnancy termination rates remain a major health issue.
(8) The paper describes a programme of research directed toward developing and testing a nursing intervention derived from the Roy Adaptation Model of Nursing and designed to prepare expectant parents for unplanned Caesarean birth.
(9) The clogged sewage drains, road-side garbage dumps and unplanned industrial waste management pose severe health hazards.
(10) Our results indicated that review of pregnancy-related behaviors decreased perceived vulnerability among two groups of subjects: those who considered unplanned pregnancy to be most undesirable and those who had the most confidence in the efficacy of their contraceptive behavior.
(11) Broken down by age category, the unplanned pregnancy rate was: 15-19 years, 7.5; 20-24 years, 6.5; 25-29 years, 5.4; 30-34 years, 3.5; and 35-44 years, 2.0.
(12) The immediate and long-range consequences of unplanned teenage pregnancies are many.
(13) After 1 year most of the PKU subjects were not planning a pregnancy, making their main behavioral goal the prevention of an unplanned pregnancy.
(14) On balance, the intrauterine device proved much more effective than oral contraceptives in preventing unplanned pregnancies, reflecting the higher continuation rates of IUD acceptors.
(15) The use-effectiveness of natural methods of family planning in lactation is evaluated by comparing the incidence of unplanned pregnancies in a group of nursing mothers practising these methods with the incidences reported previously in surveys of breastfeeding women using no contraception.
(16) A random sample of 133 elderly patients who had an unplanned readmission to a district general hospital within 28 days of discharge from hospital was studied and compared with a matched control sample of patients who were not readmitted.
(17) No significant differences in rates for other operative and postoperative complications were identified, including wound dehiscence, unplanned postoperative filtering blebs, infectious endophthalmitis, retinal detachment, persistent iridocyclitis, glaucoma, and corneal edema.
(18) Method failure was the reported cause of pregnancy in only 2 of the 83 unplanned pregnancies.
(19) The most often stated reason for requesting abortion was lack of contraception, usually during an unplanned unprotected intercourse.
(20) Findings in the survey indicated that 22% of all women and 33% of married women are at risk of having an unplanned pregnancy.