What's the difference between chronological and metachronism?

Chronological


Definition:

  • (a.) Relating to chronology; containing an account of events in the order of time; according to the order of time; as, chronological tables.

Example Sentences:

  • (1) Under these conditions the meiotic prophase takes place and proceeds to the dictyate phase, obeying a somewhat delayed chronology in comparison with controls in vivo.
  • (2) In contrast, idiopathic GH deficient girls have an onset of puberty and PHV nearer to a normal chronological age and at an early bone age.
  • (3) There was no correlation between serum LH and chronological or bone age in this age group, which suggests that the correlation found is not due to age-related parallel phenomena.
  • (4) We report the treatment of 44 boys with constitutional delay of growth and puberty (CDGP) at a mean chronological age of 14.3 years (range, 12.4-17.1) and bone age of 12.1 years (range, 9.1-15.0).
  • (5) Although chronologic age may not be a good predictor of pregnancy outcome, adolescents remain a high-risk group due to factors which are more common among them such as biologic immaturity, inadequate prenatal care, poverty, minority status, and low prepregnancy weight, and because factors associated with an early adolescent pregnancy, such as low gynecologic age, may continue to influence the outcome of subsequent pregnancies.
  • (6) The difference in the timing of the change in FSH and LH concentrations was related not only to chronological age but also to the number of years before the menopause.
  • (7) Weighed amounts of lyophilized venom from each snake were compared chronologically for variation in isoelectric focusing patterns, using natural and immobilized gradients.
  • (8) It’s around this point in the film’s chronology that Rodman makes his now infamous appearance on CNN , where he rejected calls to assist in the release of American prisoner Kenneth Bae and shouted at interviewer Chris Cuomo.
  • (9) However, a review of the literature suggests that chronological age alone does not account for increased toxicity in the elderly.
  • (10) A chronology of the disaster, involving two helicopter crashes which left 11 dead, is presented.
  • (11) A chronological subdivision of the swallowing act is needed for a step-by-step analysis.
  • (12) Sound velocities, breaking strengths calculated from velocities adjusted for estimated soft tissue cover, measured bone mediolateral diameters and cannon diameters minus estimated soft tissue increased as quadratic functions of chronologic age (r greater than .840; P less than .0001).
  • (13) Chronological observation also showed the change of SLex expression according to the histological change.
  • (14) Further considerations concern the adaptation of measurements at ad hoc times to values for full, half, and quarterly years of chronological age.
  • (15) 5(1)-Nucleotidase was found to decrease with increase in the chronological age of the chicks.
  • (16) It was also a better predictor of viability than chronological age.
  • (17) A total of 48 children were tested, with eight selected from each chronological age group from four through nine years.
  • (18) At a time when the intrauterine diagnosis of hydrocephalus is commonplace and pioneering efforts of antenatal therapy are evolving, review of the chronology of treatment of this disorder becomes pertinent.
  • (19) The chronologic and anatomic expressions of Thy-1 are compatible with a role of Thy-1 in the generation and maintenance of synapses.
  • (20) His instinct that there was something there in the association beyond simple chronology is rewarded in the details.

Metachronism


Definition:

  • (n.) An error committed in chronology by placing an event after its real time.

Example Sentences:

  • (1) Nine anastomotic recurrences were detected in the 12-30 month interval; none was reoperated for cure; however, 4 metachronous colon cancers were found and resected for cure.
  • (2) Twenty of the lung cancers were synchronous and 47 were metachronous after head and neck cancer.
  • (3) Two recurrent and two metachronous carcinomas were detected.
  • (4) In the analysis of metachronous adenomas, 164 patients who had been followed for 1 to 11 years (mean, 3.31 years) were included.
  • (5) Patients with metachronous tumors were 5 years younger and more likely to have a family history of breast cancer than those patients with synchronous cancers.
  • (6) A special problem is iso- and metachronic multiplicity.
  • (7) Lateral cilia of freshwater mussel gills, which normally beat with metachronal rhythm, are arrested pointing frontally by perfusion with 6.25 to 12.5 millimolar calcium and 10(-5) molar A23187, a calcium ionophore.
  • (8) There were 10 synchronous and 20 metachronous cases.
  • (9) The paper analyses the results of a large number of patients operated for large intestine carcinoma who then underwent a postoperative endoscopic follow-up to assess the number of metachronous tumours.
  • (10) Metachronous liver metastasis developed less than in 5% of v0 and v1 groups, while it developed in 22% of v2 and v3 groups.
  • (11) The early metachronous carcinoma could be detected by fiberendoscopy during follow-up.
  • (12) In an eight-year, ongoing study of 120 patients, 39 with carcinomas and 81 with adenomas, no patient has produced a new carcinoma despite a high incidence of metachronous adenomas.
  • (13) In 4 out of 5 patients the breast tumor was the initial tumor discovered, and in 4 out of 5 the second tumor evolved metachronously.
  • (14) A retrospective analysis of 7605 patients with cancer treated between 1958 to 1982 revealed that the colorectum was the site of metachronous primary in 38 patients (15 males and 23 females).
  • (15) It had a benign course, characterized by synchronous and metachronous multicentricity, rather than local recurrence.
  • (16) Contralateral breast cancer was recorded in 44 cases and the incidence of further metachronous cancer to the other breast was ten times higher than expected in normal breasts.
  • (17) Between 1975 and 1988, 37 patients with resectable non-small cell lung cancer (NSCLC) and synchronous (within 1 month, n = 10) or metachronous (n = 27) solitary brain metastasis (SBM) underwent combined excision of their lesions.
  • (18) No significant differences were found in ploidy and mean DNA index between index adenomas and metachronous adenomas of the Group II patients.
  • (19) There was no significant difference in age, locoregional stage (TN), or histologic features in patients with synchronous versus metachronous lesions.
  • (20) The interval between diagnosis of HD and metachronous lung cancer averaged seven years but appeared to vary inversely with age.