What's the difference between occasion and occurrence?

Occasion


Definition:

  • (n.) A falling out, happening, or coming to pass; hence, that which falls out or happens; occurrence; incident.
  • (n.) A favorable opportunity; a convenient or timely chance; convenience.
  • (n.) An occurrence or condition of affairs which brings with it some unlooked-for event; that which incidentally brings to pass an event, without being its efficient cause or sufficient reason; accidental or incidental cause.
  • (n.) Need; exigency; requirement; necessity; as, I have no occasion for firearms.
  • (n.) A reason or excuse; a motive; a persuasion.
  • (v. t.) To give occasion to; to cause; to produce; to induce; as, to occasion anxiety.

Example Sentences:

  • (1) The procedure was used on 71 occasions, and in each case a clinical diagnosis was made and compared with the cytological diagnosis made independently by a pathologist.
  • (2) Administration of furosemide might result, on occasion, in a false positive test for pheochromocytoma.
  • (3) Each patient contributed only once to each phase (105 in phase 1, 107 in phase 2), but some entered both phases on separate occasions.
  • (4) Therefore, we examined the relationship between the usual number of drinks consumed per occasion and the incidence of fatal injuries in a cohort of US adults.
  • (5) Other than failing to get a goal, I couldn’t ask for anything more.” From Lambert’s perspective there was an element of misfortune about the first and third goals, with Willian benefitting from handy ricochets on both occasions.
  • (6) In each of these sub-groups, 4 micropapilliform cancers discovered at the occasion of a histopathological test.
  • (7) However, self-efficacy (defined as confidence in being able to resist the urge to drink heavily) assessed at intake of treatment, was strongly associated with the level of consumption on drinking occasions at follow-up.
  • (8) Ten patients received intercostal nerve blockade on a total of 29 occasions in order to provide analgesia following liver transplantation and to facilitate weaning from artificial ventilation of the lungs.
  • (9) Even though the administration of demethylchlortetracycline did not produce significant decreases in the glomerular filtration rate or renal blood flow in our patient, it is advisable to control the renal function in individuals treated with this drug since it may on occasion determine renal insufficiency.
  • (10) Wharton feared that if his bill had not cleared the Commons on this occasion, it would have failed as there are only three sitting Fridays in the Commons next year when the legislation could be heard again should peers in the House of Lords successfully pass amendments.
  • (11) The second SDE was conducted on a separate occasion following the second restoration.
  • (12) These experiments represent the first occasion that the sequence specificity of a DNA damaging agent, which causes only double-strand breaks, has been determined to the exact base-pair in intact cells.
  • (13) The Met Office has had to revise its forecast on previous occasions.
  • (14) Radiographs were taken with bones placed in up to four of the common sites of impaction and assessed on two occasions independently by two previously uninvolved ENT consultants.
  • (15) These findings resolved upon cessation of timolol and reappeared on 3 occasions shortly after reinstitution of the beta blocker therapy.
  • (16) Phillips started thinking about those occasions when monoculture dominates.
  • (17) Excessive poppet wear has also been noted in the aortic position; poppet embolization has occurred on 2 occasions, and a third patient was found, at the time of reoperation for periprosthetic leak, to have opppet wear sufficient to permit embolization.
  • (18) Marie Johansson, clinical lead at Oxford University's mindfulness centre , stressed the need for proper training of at least a year until health professionals can teach meditation, partly because on rare occasions it can throw up "extremely distressing experiences".
  • (19) One to 6 needles were used on each occasion in a maximum of 3 treatments.
  • (20) GABA-IR terminals were not observed as presynaptic elements in axo-axonic synapses; however, on some occasions, GABA-IR profiles presumed to be axon terminals were observed postsynaptic to large glomerular type terminals.

Occurrence


Definition:

  • (n.) A coming or happening; as, the occurence of a railway collision.
  • (n.) Any incident or event; esp., one which happens without being designed or expected; as, an unusual occurrence, or the ordinary occurrences of life.

Example Sentences:

  • (1) By presenting the case history of a man who successively developed facial and trigeminal neural dysfunction after Mohs chemosurgery of a PCSCC, this paper documents histologically the occurrence of such neural invasion, and illustrates the utility of gadolinium-enhanced magnetic resonance scanning in patient management.
  • (2) Hypothyroidism complicated by spontaneous hyperthyroidism is an interesting but rare occurrence in the spectrum of autoimmune thyroid disorders.
  • (3) We therefore enumerated the percentage of Leu2a+ cells as well as the occurrence of HLA-DR activation markers within this population.
  • (4) Several interpretations of the results are examined including the possibility that the effects of Valium use were short-lived rather than long-term and that Valium may have been taken in anticipation of anxiety rather than after its occurrence.
  • (5) In addition to the phase diagrams reported here for these two binary mixtures, a brief theoretical discussion is given of other possible phase diagrams that may be appropriate to other lipid mixtures with particular consideration given to the problem of crystalline phases of different structures and the possible occurrence of second-order phase transitions in these mixtures.
  • (6) The authors followed up the occurrence of inflammation-mediated osteopenia (IMO) in young and adult rats weighing 50 g and 150 g, respectively.
  • (7) The methodology, in algorithm form, should assist health planners in developing objectives and actions related to the occurrence of selected health status indicators and should be amenable to health care interventions.
  • (8) The occurrence of episodes of desaturation during sleep in patients suffering from chronic airflow obstruction is well known.
  • (9) A striking feature of BEN is the familial occurrence of the disease.
  • (10) On the basis of mathematical models of the obtained dose-time-effect relationship, the risk of cancer occurrence due to small carcinogen doses is predicted.
  • (11) In this study, bacterial flora, especially the occurrence of A. actinomycetemcomitans, in the periodontal pockets of one juvenile with gingivitis (G), one JP patients, five rapidly progressive periodontitis (RP) patients and one adult periodontitis(AP) patient, and one adult with healthy periodontium was investigated using a blood agar medium and a selective medium for A. actinomycetemcomitans.
  • (12) By using these methods, it was clearly indicated that these factors such as TDF of rectum, Z-coordinate of weighted geometric center (WGC-Z), the dose of whole pelvic irradiation, history of chemotherapy and Treponema pallidum hemoagglutination test (TPHA) were important for occurrence of rectal complication.
  • (13) This study examined the frequency of occurrence of velar deviations in spontaneous single-word utterances over a 6-month period for 40 children who ranged in age from 1:11 (years:months) to 3:1 at the first observation.
  • (14) So we concluded that duplications and accessories should be thought to have similar meanings with the ordinary branching patterns of MCA in the occurrence of aneurysms.
  • (15) In a Caucasian woman with a history of ocular and pulmonary sarcoidosis, the occurrence of sclerosing peritonitis with exudative ascites but without any of the well-known causes of this syndrome prompts us to consider that sclerosing peritonitis is a manifestation of sarcoidosis.
  • (16) However, this inhibition was not found in rats treated with castor oil for 3 d. Moreover, 5-HT concentration in the midbrain significantly decreased in rats that acquired the adaptability for the occurrence of diarrhea.
  • (17) The timing of the occurrence of the disease is closely related to the conceptional age of the infant rather than weeks post birth, birth weight, gestational age at birth.
  • (18) Vital staining of neuroblastoma cells with acridine orange produces a bright intracellular red-orange fluorescence most probably due to the occurrence of RNA.
  • (19) The presence of potential insect vectors and the occurrence of clinical signs are indications of active transmissions.
  • (20) They do suggest the presence of a relatively small subpopulation in whom reduction of plasma cholesterol may lead to increased occurrence of cancer.