What's the difference between ascertain and establish?

Ascertain


Definition:

  • (v. t.) To render (a person) certain; to cause to feel certain; to make confident; to assure; to apprise.
  • (v. t.) To make (a thing) certain to the mind; to free from obscurity, doubt, or change; to make sure of; to fix; to determine.
  • (v. t.) To find out or learn for a certainty, by trial, examination, or experiment; to get to know; as, to ascertain the weight of a commodity, or the purity of a metal.

Example Sentences:

  • (1) We have investigated the effect of methimazole (MMI) on cell-mediated immunity and ascertained the mechanisms of immunosuppression produced by the drug.
  • (2) Prior to oral feeding, little or no ELA was detected in stools and endotoxinemia was ascertained in only six of 45 infants (13%).
  • (3) A total of 13 ascertainments of folate sensitive autosomal fragile sites is observed, of which 10q23 fragility appears to be the most frequent.
  • (4) A similar examination of the effects of PD was also carried out in vitro to ascertain whether PD itself or its metabolites are involved in its action.
  • (5) The purity and configuration of each isomer of the free acid and N-chloroacetylated derivative were ascertained by: (a) paper chromatography in five solvent systems, (b) elemental analysis, (c) Van Slyke nitrous acid determination of alpha-carbonyl carbon, and (d) Van Slyke ninhydrin determination of alpha-carbonyl carbon, and (e) optical rotation.
  • (6) In an anthropologic study of illness referral among Latin-American immigrants three phases were ascertained: First, there was extended use of self-treatment.
  • (7) In 20 adult patients with asthma, we evaluated bronchodilation to a single administration of metered-dose glycopyrrolate aerosol (GA) to ascertain its onset and duration of action along with evaluation of safety.
  • (8) 64% of the patients without nodular metastases and 45% of the patients with histologically ascertained nodular metastases and 45% of the patients with histologically ascertained nodular metastases survived the 3-year interval.
  • (9) The results indicated a very good comparability between the dot-blot assay and IF-tests, and this dot-blot method was ascertained as a simple and useful method for the scrub typhus serodiagnosis.
  • (10) Combinations of YM534 with other anti-cancer agents were examined to ascertain whether YM534 potentiated other anti-cancer agents against the KB cell line and its multidrug-resistant counterpart, VJ-300.
  • (11) Three experiments in person perception were conducted to investigate the conditions under which naive observers label an actor as aggressive and to ascertain how this label affects the reactions of the observers to the actor.
  • (12) This study was designed to ascertain the frequency of these problems in our RS patients, whether they were related to other clinical features of RS and what was the extent of the resulting disability.
  • (13) The nutritional requirements for optimal production of biologically active l-asparaginase by a strain of Escherichia coli have been ascertained.
  • (14) Fifty-seven strains of enterotoxigenic Escherichia coli isolated from humans and pigs and producing thermolabile (LT) enterotoxin were used to ascertain the efficiency of the Biken test compared to the passive immune haemolysis test (PIH), considered as very sensitive for detecting that enterotoxin.
  • (15) In the formation of the transformation index the difference between the two groups could be statistically ascertained.
  • (16) This was a highly significant (p less than 0.0001) predictor of 5-year total mortality, whose ascertainment was virtually complete.
  • (17) On the basis of segregating phenotypes, the genetic potentials of these compatible nocardiae were ascertained as follows: the formation of a diploid with subsequent segregation of parental or haploid recombinant genomes or both; persistence of the diploid through many generations; continuing reassortment of genetic information by multiple matings between parental or recombinant organisms; and, very probably, second-round recombinations within the diploid.
  • (18) Based on the ratio of plasma membrane marker enzyme activity determined in the nuclear preparation, the purity of the isolated nuclei was ascertained.
  • (19) The amount of free testosterone in the saliva was also ascertained for 23 of the subjects.
  • (20) In addition, re-analysis of previous investigations of the MAB underscores the importance of ascertaining the reading level of subjects prior to the administration of the MAB.

Establish


Definition:

  • (a.) To make stable or firm; to fix immovably or firmly; to set (a thing) in a place and make it stable there; to settle; to confirm.
  • (a.) To appoint or constitute for permanence, as officers, laws, regulations, etc.; to enact; to ordain.
  • (a.) To originate and secure the permanent existence of; to found; to institute; to create and regulate; -- said of a colony, a state, or other institutions.
  • (a.) To secure public recognition in favor of; to prove and cause to be accepted as true; as, to establish a fact, usage, principle, opinion, doctrine, etc.
  • (a.) To set up in business; to place advantageously in a fixed condition; -- used reflexively; as, he established himself in a place; the enemy established themselves in the citadel.

Example Sentences:

  • (1) Similar experimental manipulation has yielded in vitro lines established from avian B-cell lymphomas expressing elevated levels of c-myc or v-rel.
  • (2) The liver metastasis was produced by intrasplenic injection of the fluid containing of KATOIII in nude mouse and new cell line was established using the cells of metastatic site.
  • (3) The role of whole Mycobacteria, mycobacterial cell walls and waxes D as immunostimulants was well established many years ago.
  • (4) A backbench policy advisory group will be established to develop ideas.
  • (5) Since it was established, it has stoked controversy about contemporary art, though in recent years it has been more notable for its lack of sensationalism.
  • (6) Nasotracheal intubation has been well established as a method for maintaining an artificial airway in children.
  • (7) Using multiple regression, a linear correlation was established between the cardiac index and the arterial-venous pH and PCO2 differences throughout shock and resuscitation (r2 = .91).
  • (8) Developing seminiferous tubules and interstitial cells were first seen on day 26, and were well established one day later.
  • (9) In three of these patients this was associated with the presence of a previously well established abscess cavity.
  • (10) To identify the NHE-1 protein and to establish its cellular and subcellular localization in the rabbit kidney, we prepared antibodies to a NHE-1 fusion protein.
  • (11) The structures of 1 and 2 were established mainly on the basis of nmr spectroscopic data.
  • (12) It was established that nonsurgical methods of transplantation with laboratory animals were less time-consuming and were more readily applicable.
  • (13) The haplotype of the recombinant X chromosome of each of 241 backcross progeny has been established using the X-linked anchor loci Otc, Hprt, Dmd, Pgk-1, and Amg and the additional probes DXSmh43 and Cbx-rs1.
  • (14) We found that, although controlled release delivery of ddC inhibited de novo FeLV-FAIDS replication and delayed onset of viremia when therapy was discontinued (after 3 weeks), an equivalent incidence and level of viremia were established rapidly in both ddC-treated and control cats.
  • (15) After several months, a temporal discrimination was well established, as shown by maximum suppression toward the end of the signal period.
  • (16) An experimental model was established in the ewe allowing one to predict with accuracy an antral follicle that coincidentally would either undergo ovulation (6-8 mm diameter) or atresia (3-4 mm diameter) following synchronization of luteal regression and the onset of the gonadotropin surge.
  • (17) In 8 of 32 patients (25%) the diagnosis was established only at autopsy.
  • (18) For the second propositus, a woman presenting with abdominal and psychiatric manifestations, the age of onset was 38 years; the acute attack had no recognizable cause; she had mild skin lesions and initially was incorrectly diagnosed as intermittent acute porphyria; the diagnosis of variegate porphyria was only established at the age of 50 years.
  • (19) We previously established that the binding constant (Ka) of this receptor site for the chemically synthesized model AGE, 2-(2-furoyl)-4(5)-(2-furanyl)-1H- imidazole-butyric acid (FFI-BA), on cells of the mouse macrophagelike cell line RAW 264.7 is identical to that for AGE proteins.
  • (20) Neil Blessitt Bristol • We need to establish what the legal position is with regard to the establishment by the government of a private company co-owned by the Department of Health and the French firm Sopra Steria.