(n.) The quality or state of being periodical, or regularly recurrent; as, the periodicity in the vital phenomena of plants.
Example Sentences:
(1) Without medication atypical ventricular tachycardia develops, in the author's opinion, most probably when bradycardia has persisted for a prolonged period.
(2) Disease stabilisation was associated with prolonged periods of comparatively high plasma levels of drug, which appeared to be determined primarily by reduced drug clearance.
(3) Although the mean values for all hemodynamic variables between the two placebo periods were minimally changed, the differences in individual patients were striking.
(4) It was shown in experiments on four dogs by the conditioned method that the period of recovery of conditioned activity after one hour ether anaesthesia tested 7 to 7.5 days.
(5) Under blood preservation conditions the difference of the rates of ATP-production and -consumption is the most important factor for a high ATP-level over long periods.
(6) No significant change occurred in the bacterial population of our hospital unit during the period of the study (more than 3 years).
(7) The secondary leukemia that occurred in these patients could be distinguished from the secondary leukemia that occurs after treatment with alkylating agents by the following: a shorter latency period; a predominance of monocytic or myelomonocytic features; and frequent cytogenetic abnormalities involving 11q23.
(8) Sixteen patients in whom schizophrenia was initially diagnosed and who were treated with fluphenazine enanthate or decanoate developed severe depression for a short period after the injection.
(9) During the study period four family outbreaks and seven recurrences of infection were observed.
(10) After a period on fat-rich diet the patient's physical fitness was increased and the recovery period after the acute load was shorter.
(11) During this period he developed autoimmune haemolytic anaemia, a rare complication of myelofibrosis.
(12) Pituitary weight, mitotic index and chromosomes were studied in male rats following a single or repeated dose of estradiol-benzoate for a total period of 210 days.
(13) Most thyroid hormone actions, however, appear in the perinatal period, and infants with thyroid agenesis appear normal at birth and develop normally with prompt neonatal diagnosis and treatment.
(14) Maximal aberration yields were observed for 2,4-diaminotoluene, 2,6-diaminotoluene and cytosine beta-D-arabinofuranoside from 17 to 21 h, eugenol from 15 to 21 h, cadmium sulfate from 15 to 24 h and 2-aminobiphenyl, from 17 to 24 h. For adriamycin at 1 microM, the % aberrant cells remained elevated throughout the period from 9 to 29 h, while small increases at 0.1 microM ADR were found only at 13 and at 25 h. For most chemicals the maximal aberration yield occurred at a different time for each concentration tested.
(15) Accuracy of discrimination of letters at various preselected distances was determined each session while Ortho-rater examinations were given periodically throughout training.
(16) During electrophysiologic study, the effect of propafenone on the effective refractory period of the accessory pathway was determined, as well as its effect during orthodromic atrioventricular (AV) reentrant tachycardia and atrial fibrillation.
(17) Time-series analysis and multiple-regression modeling procedures were used to characterize changes in the overall incidence rate over the study period and to describe the contribution of additional measures to the dynamics of the incidence rates.
(18) Throughout the period of rehabilitation, the frequent changes of a patient's condition may require a process of ongoing evaluation and appropriate adjustments in the physical therapy program.
(19) Anthropometric and nutritional (serum albumin and transferrin) values were normal in both groups both at the beginning and at the end of the treatment period.
(20) Analysis of conjugated discharges ACHs showed that they appeared predominantly periodically (87% of cases).
Repeat
Definition:
(v. t.) To go over again; to attempt, do, make, or utter again; to iterate; to recite; as, to repeat an effort, an order, or a poem.
(v. t.) To make trial of again; to undergo or encounter again.
(v. t.) To repay or refund (an excess received).
(n.) The act of repeating; repetition.
(n.) That which is repeated; as, the repeat of a pattern; that is, the repetition of the engraved figure on a roller by which an impression is produced (as in calico printing, etc.).
(n.) A mark, or series of dots, placed before and after, or often only at the end of, a passage to be repeated in performance.
Example Sentences:
(1) Clinical surveillance, repeated laboratory tests, conventional radiology, and especially ultrasonography and CT scan all contributed to the preoperative diagnosis.
(2) Nine of 14 patients studied for documented clinical relapse had positive repeat studies.
(3) Comparison of wild type and the mutant parD promoter sequences indicated that three short repeats are likely involved in the negative regulation of this promoter.
(4) Pituitary weight, mitotic index and chromosomes were studied in male rats following a single or repeated dose of estradiol-benzoate for a total period of 210 days.
(5) A chronic cannulation procedure is described which allows for sampling vomeronasal organ (VNO) contents repeatedly in freely moving conscious subjects.
(6) The region containing the injection stop signal (iss) has been cloned and sequenced and found to contain numerous large repeats and inverted repeats which may be part of the iss.
(7) In view of reports of the reduction of telomeric repeats in human malignant tumors, we measured the lengths of telomeric repeats in 55 primary neuroblastomas.
(8) A domain containing a CA repeat, similar to ones found in other late, cAMP-induced Dictyostelium genes, is required for cAMP-induced and developmental expression.
(9) But it will be a subtle difference, because it's already abundantly clear there's no danger of the war being suddenly forgotten, or made to seem irrelevant to our sense of what Europe and the world has to avoid repeating.
(10) An axillo-axillary bypass procedure was performed in a high-risk patient with innominate arterial stenosis who had repeated episodes of transient cerebral ischemia due to decreased blood flow through the right carotid artery and reversal of blood flow through the right vertebral artery.
(11) Intensity thresholds for eliciting eating and drinking were different, and both thresholds decreased with repeated testing.
(12) Our experience indicates that lateral rhinotomy is a safe, repeatable and cosmetically sound procedure that provides and excellent surgical approach to the nasal cavity and sinuses.
(13) In crosses between inverted repeats, a single intrachromatid reciprocal exchange leads to inversion of the sequence between the crossover sites and recovery of both genes involved in the event.
(14) Each species has approximately 500 core histones cluster repeats per haploid genome.
(15) We identified four distinct clinical patterns in the 244 patients with true positive MAI infections: (a) pulmonary nodules ("tuberculomas") indistinguishable from pulmonary neoplasms (78 patients); (b) chronic bronchitis or bronchiectasis with sputum repeatedly positive for MAI or granulomas on biopsy (58 patients, virtually all older white women); (c) cavitary lung disease and scattered pulmonary nodules mimicking M. tuberculosis infection (12 patients); (d) diffuse pulmonary infiltrations in immunocompromised hosts, primarily patients with AIDS (96 patients).
(16) Examinations, begun at day 150 of gestation in 33 monkeys and between days 32 and 58 in four other animals, were repeated at intervals of one to seven days.
(17) During that time they have repeatedly demonstrated the likely existence of signalling molecules or morphogens that control the pattern of development in the embryo.
(18) Male guinea pigs received either a single dose of As2O3 10 mg.kg-1 s.c. or repeated doses of 2.5 mg.kg-1 bis in die (b.i.d.)
(19) Plasmids containing the inverted repeat alone bound ER, though less efficiently than did plasmids containing the entire sequence.
(20) These studies indicate that at each site of induction during feather morphogenesis, a general pattern is repeated in which an epithelial structure linked by L-CAM is confronted with periodically propagating condensations of cells linked by N-CAM.