What's the difference between hypothesis and postulate?

Hypothesis


Definition:

  • (n.) A supposition; a proposition or principle which is supposed or taken for granted, in order to draw a conclusion or inference for proof of the point in question; something not proved, but assumed for the purpose of argument, or to account for a fact or an occurrence; as, the hypothesis that head winds detain an overdue steamer.
  • (n.) A tentative theory or supposition provisionally adopted to explain certain facts, and to guide in the investigation of others; hence, frequently called a working hypothesis.

Example Sentences:

  • (1) The hypothesis that proteins are critical targets in free radical mediated cytolysis was tested using U937 mononuclear phagocytes as targets and iron together with hydrogen peroxide to generate radicals.
  • (2) The generally accepted hypothesis is a coronary spasm but a direct cardiotoxicity of 5-FU cannot be.
  • (3) The results of our microscopic model confirm that the continuum hypothesis used in our previous macroscopic model is reasonable.
  • (4) The authors empirically studied the self-medication hypothesis of drug abuse by examining drug effects and motivation for drug use in 494 hospitalized drug abusers.
  • (5) Evidence is presented in support of the hypothesis that fresh bat guano serves as a means of pathogenic fungi dissemination in caves.
  • (6) The present study was designed to test the hypothesis that the decreased Epi response following ET was due to 1) depletion of adrenal Epi content such that adrenomedullary stimulation would not release Epi, 2) decreased Epi release with direct stimulation, i.e., desensitization of release, or 3) decreased afferent signals generated by ET itself.
  • (7) Implications of the theory for hypothesis testing, theory construction, and scales of measurement are considered.
  • (8) The 14-fold increase in prolonged apnea frequency immediately following regurgitation supports the hypothesis for a causal relationship between apnea and regurgitation.
  • (9) The hypothesis that experimentally determined survival times of Treponema pallidum in stored donor blood could be related to the number of treponemes initially present in the treponeme-blood mixtures was investigated by inoculating rabbits with three graded doses of treponemes suspended in donor blood and stored at 4 degrees C for various periods of time.
  • (10) Following the hypothesis that infertile patients may present emotional conflicts with regard to the wish of having a child, psychodynamic interviews were carried out with 116 infertile couples concomitantly with their first consultation at the Sterility Department.
  • (11) Results were inconsistent with both the feature detector fatigue and response bias hypothesis.
  • (12) This hypothesis is supported by our recent report that immunoreactive human PRL (ir-hPRL) is produced by and required for the continuous growth of sfRamos, a Burkitt tumor serum-free cell line.
  • (13) This hypothesis is difficult to substantiate with direct measurements using human subjects.
  • (14) We tested the hypothesis that furosemide interferes with energy generation in the cochlea, and determined its effect on CO2 formation from glucose and glyceroaldehyde-3-phosphate dehydrogenase (GAPDH) activity by examining biochemical and histochemical changes in the cochlea, the kidney, and the liver.
  • (15) Our data support the hypothesis that evoked and epileptiform magnetic fields result from intradendritic currents oriented perpendicular to the cortical surface.
  • (16) This observation seriously challenges the hypothesis that SCE cancellation results as a consequence of persistence of the lesions induced by these agents.
  • (17) The hypothesis that the standard acoustic startle habituation paradigm contains the elements of Pavlovian fear conditioning was tested.
  • (18) In this study we tested the hypothesis that regardless of concentration pattern and exposure rate the same exposure dose of O3 will induce the same spirometric response.
  • (19) We put forward the hypothesis that the agglutinability in acriflavine, together with the PAGE profile type II, may be associated with particular structures responsible for virulence.
  • (20) After an introductory note on primary preventive intervention of breast cancer during adulthood, the author defends and extends a hypothesis that relates most of the known risk factors for this disease to the development of preneoplastic lesions in the breast.

Postulate


Definition:

  • (n.) Something demanded or asserted; especially, a position or supposition assumed without proof, or one which is considered as self-evident; a truth to which assent may be demanded or challenged, without argument or evidence.
  • (n.) The enunciation of a self-evident problem, in distinction from an axiom, which is the enunciation of a self-evident theorem.
  • (a.) Postulated.
  • (v. t.) To beg, or assume without proof; as, to postulate conclusions.
  • (v. t.) To take without express consent; to assume.
  • (v. t.) To invite earnestly; to solicit.

Example Sentences:

  • (1) We postulate that FAA may affect the human peripheral and mucosal immune system.
  • (2) This postulate is supported by a limited study of the serovars present among the isolates.
  • (3) Protein kinase C (PKC) is activated rapidly and transiently following ionizing radiation exposure and is postulated to activate downstream nuclear signal transducers.
  • (4) A new theory for the peculiar site selection of cholesteatomas of the external auditory canal is postulated.
  • (5) Both strong-stop DNAs are made early during in vitro reactions and decline in concentration later, consistent with postulated roles as initiators of long minus- and plus-strand DNA.
  • (6) Based on these findings and those described before, an overall degradation scheme is postulated.
  • (7) Their speech patterns, specifically pronoun use, were analyzed and support the postulate that a high frequency of self-references indicates memory loss and paucity of present experience.
  • (8) It has been postulated that the peroxisomal fatty acid-oxidizing system [Lazarow & de Duve (1976) Proc.
  • (9) The paper postulates that 'anal or sphincter defensiveness' is one of the precursors of the repression barrier.
  • (10) We postulate that an abnormality in retinal dopaminergic neurons, which are known to reduce light responsiveness of horizontal and ganglion cells, is the underlying pathophysiology of this clinical finding.
  • (11) We conclude, therefore, that a direct deacylation of the acyl groups at the primary alcohol level of the glycerol probably does not occur, but postulate that transacylations may occur to account for the removal of the acyl moiety.
  • (12) In addition, the postulated personality for PD may predispose to hard work, perspiration, and increased exposure to putative trace elements in the water supply.
  • (13) A regulatory role for GABA in the reproductive tract is postulated.
  • (14) A pathogenetic mechanism is postulated to explain the subacute evolution of fluid collection with diffusion of proteolytic enzymes between the splenic capsule and parenchyma.
  • (15) Therefore, it is not necessary to postulate a preponderant extraerythropoietic source to explain the amount of fecal excretion.
  • (16) The reason we have postulated that one-electron oxidation plays an important role in the activation of PAH derives from certain common characteristics of the radical cation chemistry of the most potent carcinogenic PAH.
  • (17) The postulated deficit is contrasted to the hypothesis of impairment to the lexical-semantic component, required to explain performance by brain-damaged subjects described elsewhere who make seemingly identical types of oral production errors to those of RGB and HW, but, in addition, make comparable errors in writing and comprehension tasks.
  • (18) The expression of keratin and differentiation markers was identical to that of normal keratinocytes, suggesting that psoriatic epidermal differentiation is not truncated in vitro as has been postulated to be the case in vivo.
  • (19) It is postulated that in case vasopressin affects retrieval processes the site of action is located in the amygdala and the dentate gyrus of the hippocampal complex with dopamine and serotonin as the respective neurotransmitter systems involved.
  • (20) More than 20 years ago Olney and his colleagues described the 'Excitotoxic Hypothesis' which postulates that, in addition to its normal function in the healthy brain, glutamate can kill neurons by prolonged, receptor-mediated depolarization resulting in irreversible disturbances in ion homeostasis.