What's the difference between certainly and doubt?

Certainly


Definition:

  • (adv.) Without doubt or question; unquestionably.

Example Sentences:

  • (1) One hour after direct mechanical cardiomassage (DMCM) a moderately pronounced edema of the intercellular spaces in the basal compartment of the seminiferous epithelium, normal content of lactate and succinate dehydrogenases, and a certain decrease in the activity of glucose-6-phosphate dehydrogenases and NAD- and NADP-diaphorases were noted.
  • (2) Work on humoral responses has focused on lysozyme, the hemagglutinins (especially in the oyster), and the clearance of certain antigens.
  • (3) Stress is laid on certain principles of diagnostic research in the event of extra-suprarenal pheochromocytomas.
  • (4) As a group, the three mammalian proteins resemble bovine serum conglutinin and behave as lectins with rather broad sugar specificities directed at certain non-reducing terminal N-acetylglucosamine, mannose, glucose and fucose residues, but with subtle differences in fine specificities.
  • (5) A segment of vas deferens was transplanted to the contralateral deferens with the intention of improving treatment for certain cases of infertility caused by obstruction.
  • (6) hypoglossal nucleus), whereas in other areas the angiotensinogen gene was expressed only in a certain population of glial cells.
  • (7) The following conclusions emerge: (i) when the 3' or the 3' penultimate base of the oligonucleotide mismatched an allele, no amplification product could be detected; (ii) when the mismatches were 3 and 4 bases from the 3' end of the primer, differential amplification was still observed, but only at certain concentrations of magnesium chloride; (iii) the mismatched allele can be detected in the presence of a 40-fold excess of the matched allele; (iv) primers as short as 13 nucleotides were effective; and (v) the specificity of the amplification could be overwhelmed by greatly increasing the concentration of target DNA.
  • (8) Certainly, Saunders did not land a single blow that threatened to stop his opponent, although he took quite a few himself that threatened his titles in the final few rounds.
  • (9) We present a mathematical model that is suitable to reconcile this apparent contradiction in the interpretation of the epidemiological data: the observed parallel time series for the spread of AIDS in groups with different risk of infection can be realized by computer simulation, if one assumes that the outbreak of full-blown AIDS only occurs if HIV and a certain infectious coagent (cofactor) CO are present.
  • (10) HDAra-C in combination with anthracyclines is now considered to be a treatment which may afford some hope of a cure in a certain percentage of cases of adult acute non-lymphocytic leukemia.
  • (11) These results suggest that a certain minimum level of expression of c-myc is required for the maintenance of ras transformation in NIH 3T3 cells.
  • (12) This "paradox of redistribution" was certainly observable in Britain, where Welfare retained its status as one of the 20th century's most exalted creations, even while those claiming benefits were treated with ever greater contempt.
  • (13) In certain cases, the effects of these substances are enhanced, in others, they are inhibited by compounds that were isolated from natural sources or prepared by chemical synthesis.
  • (14) Accumulating evidence indicates that for most tumors, the switch to the angiogenic phenotype depends upon the outcome of a balance between angiogenic stimulators and angiogenic inhibitors, both of which may be produced by tumor cells and perhaps by certain host cells.
  • (15) The findings indicate that these spaces were lined by a lipid monolayer which formed bilayered lamellae under certain conditions.
  • (16) Positive feedback effects on serum gonadotrophins in castrates were observed following injection of certain doses of some steroids.
  • (17) Hence, presence of IgG rheumatoid factor correlated positively with the presence of rheumatoid disease, and evidence was established that certain features of rheumatoid inflammation occur in dental periapical lesions of many patients with rheumatoid disease.
  • (18) The typology developed in two previous surveys of illicit heroin products is applicable to many of the samples studied in this work, although significant changes have occurred in the chemical profile of illicit heroin products from certain geographical regions.
  • (19) The presence of an inverse correlation between certain tryptophan metabolites, shown previously to be bladder carcinogens, and the N-nitrosamine content, especially after loading, was interpreted in view of the possible conversion of some tryptophan metabolites into N-nitrosamines either under endovesical conditions or during the execution of the colorimetric determination of these compounds.
  • (20) An electrogenic sodium-potassium pump appears to contribute materially to the steady-state potential and to certain of the transient potential responses of vascular smooth muscle.

Doubt


Definition:

  • (v. i.) To waver in opinion or judgment; to be in uncertainty as to belief respecting anything; to hesitate in belief; to be undecided as to the truth of the negative or the affirmative proposition; to b e undetermined.
  • (v. i.) To suspect; to fear; to be apprehensive.
  • (v. t.) To question or hold questionable; to withhold assent to; to hesitate to believe, or to be inclined not to believe; to withhold confidence from; to distrust; as, I have heard the story, but I doubt the truth of it.
  • (v. t.) To suspect; to fear; to be apprehensive of.
  • (v. t.) To fill with fear; to affright.
  • (v. i.) A fluctuation of mind arising from defect of knowledge or evidence; uncertainty of judgment or mind; unsettled state of opinion concerning the reality of an event, or the truth of an assertion, etc.; hesitation.
  • (v. i.) Uncertainty of condition.
  • (v. i.) Suspicion; fear; apprehension; dread.
  • (v. i.) Difficulty expressed or urged for solution; point unsettled; objection.

Example Sentences:

  • (1) In a further study 1082 patients with a negative or doubtful result of the physical examination were investigated using ultrasound.
  • (2) p-Chlorophenylalanine (PCPA) also reduced the response to levodopa but the usefulness of PCPA as an inhibitor of 5HT synthesis in these experiments in doubtful since it also inhibited the hypoglycaemic effects of 5HTP and i.c.v.
  • (3) There is no doubt that new techniques in molecular biology will continue to evolve so that the goal of gene therapy for many disorders may be possible in the future.
  • (4) I never had any doubt that the vast majority of people engaged in "business" are not the exploiters but the exploited.
  • (5) There is no doubt that psychological, reactive and environmental factors do play a certain role too.
  • (6) Paul Doyle Kick-off Sunday midday Venue St Mary’s Stadium Last season Southampton 2 Leicester City 2 Live Sky Sports 1 Referee Michael Oliver This season G 18, Y 60, R 1, 3.44 cards per game Odds H 5-6 A 4-1 D 5-2 Southampton Subs from Taylor, Martina, Stephens, Davis, Rodriguez, Sims, Ward-Prowse Doubtful Bertrand, Davis, Van Dijk (all match fitness) Injured Boufal (knee, Jan), Hesketh (ankle, Feb), Targett (hamstring, Feb), Austin (shoulder, Mar), Pied (knee, Jun), Gardos (knee, unknown) Suspended None Form DWLLLL Discipline Y37 R2 Leading scorer Austin 6 Leicester City Subs from Zieler, Hamer, Wasilewski, Gray, Fuchs, James, Okazaki, Hernández, Kapustka, King Doubtful None Injured None Suspended None Unavailable Amartey, Mahrez, Slimani (Africa Cup of Nations) Form LDLWDL Discipline Y44 R1 Leading scorers Slimani, Vardy 5
  • (7) Without that, and without undertaking big changes, the service's future may fall into doubt, he says.
  • (8) This is welcome news but it needs to be borne in mind that the manufacturing sector is still far from racing ahead and serious doubts remain about the strength of demand for manufactured goods over the medium term, particularly once stimulative measures start being withdrawn.
  • (9) Doubts about Hinkley Point have deepened after a detailed report by HSBC’s energy analysts described eight key challenges to the project, which will be built by the state-backed French firm EDF and be part-financed by investment from China .
  • (10) The mean age of gravidae with doubtful smears is about 6 years beyond the mean age of gravidae with positive smears.
  • (11) I have no doubt that both the Conservative and Labour parties will maintain throughout the course of the election campaign their determination to build four submarines and 160 warheads,” he says.
  • (12) There is little doubt that when it opens next Thursday, One New Change will be jam-packed with City workers and tourists.
  • (13) We feel that they, as presented, leave serious doubt as to the validity of their conclusions.
  • (14) Contact guidance has been suggested to direct NC cells ventrally in the trunk, but this has been subject to doubt (see Newgreen and Erickson, 1986, Int.
  • (15) Although “there are serious questions and doubts in our minds over the government’s seven-day working agenda … it isn’t clear what this strike action is for and what the position of the BMA is now,” he told the Guardian.
  • (16) There is no doubt that people were killed quite deliberately by police officers.
  • (17) Other critics, even if they were unsure of the lasting relevance, were willing to give Tillmans the benefit of the doubt.
  • (18) We interpret this exaggerated positive attitude as an attempt to overcome inner fears, doubts and ambivalences.
  • (19) Another forward, Manchester United's Danny Welbeck, is a major doubt for the game with a knee complaint.
  • (20) Coghlin said: “There is no doubt that, as a consequence of the personalities involved, these proceedings attracted a very considerable degree of media publicity both before and, to a certain degree, subsequent to the trial.