What's the difference between hypothesis and tentative?

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.

Tentative


Definition:

  • (a.) Of or pertaining to a trial or trials; essaying; experimental.
  • (n.) An essay; a trial; an experiment.

Example Sentences:

  • (1) The pattern of the stressor that causes a change in the pitch can be often identified only tentatively, if there is no additional information.
  • (2) The tentative diagnosis "neurinoma of the hypoglossal nerve" was confirmed intraoperatively and histologically.
  • (3) These compounds were tentatively identified as two epimers at C-23 of 3 alpha,7 alpha,12 alpha-trihydroxy-5 beta-cholestano-26,23-lactone, which were probably artifacts formed from the corresponding tetrahydroxycholestanoic acids during the procedures for extraction after hydrolysis.
  • (4) Minimal breast cancer should include lobular carcinoma in situ (lobular neoplasia) and ductal carcinoma in situ regardless of nodal status, and (tentatively) invasive carcinoma smaller than 1 cm in total diameter, if axillary lymph nodes are not involved.
  • (5) Based on these data, a tentative life cycle for P. carinii in vitro has been proposed.
  • (6) Investigation of the mechanism of action of the synergistic effect between kanamycin and HA led to the tentative conclusion that potentiation was mediated through an initial alteration of cell permeability by the aminoglycoside antibiotic which permitted accumulation of each of the six HA into the cell, at which point each interacted with pyridoxal phosphate.
  • (7) Taking this into account, it was tentatively concluded that the mature NDP kinase consists of 147 amino acid residues with a molecular weight of 16,724.
  • (8) Based on these characteristics, we tentatively ascribe this activity to hepatic very low density lipoprotein, the serum counterpart of which is known to express many immunoregulatory properties.
  • (9) A tentative scheme of EBV-induced pathogenesis is discussed.
  • (10) Two new alleles, tentatively designated ORM1*14 and ORM2*13, were identified.
  • (11) In a previous paper, the main mutagenic compound isolated from the model reaction system D-fructose, DL-alanine and creatinine was tentatively identified as 4,8-DiMeIQx.
  • (12) Thus it can be tentatively suggested that it is prokallikrein A which is secreted into the pancreatic juice and represents the physiologically important zymogen.
  • (13) This epithelial cell was tentatively identified as primitive extraembryonic endoderm by its ultrastructural appearance and its possession of cytokeratin intermediate filaments.
  • (14) Gas chromatographic-mass spectrometric analysis of aglycones released from this conjugate revealed the presence of 3 beta, 5 alpha-tetrahydroaldosterone and an another aglycone, tentatively identified as 21-deoxy-tetrahydroaldosterone.
  • (15) Iron deficiency has been tentatively excluded as a cause of this anaemia by measurement of serum ferritin levels.
  • (16) Meiosis is too complex to have arisen at once full blown and a stepwise scheme is proposed for its evolution, where each step is believed to have provided an immediate selective advantage: (1) The first step in this tentative sequence is the development of a haploidization process by means of a rapid series of mitotic non-disjunctions, turned on under conditions where haploidy is favored.
  • (17) Results of a tentative estimates as to the economic advantages offered by the experimental ASPEP and conditions required to achieve the maximum economic effect by using this system are given.
  • (18) In 6 cases only a tentative diagnosis of lymphoepitheloid cell malignant lymphoma could be made.
  • (19) Urine from normal children showed a small acid-labile (at 100 degrees C) peak at the ASA position, which we tentatively assign to genuine ASA.
  • (20) We tentatively suggest that a preferential loss of contrast sensitivity to horizontal gratings might be due to a functional abnormality in the striate cortex that relatively spares the extrastriate cortex.