What's the difference between experimental and tentative?

Experimental


Definition:

  • (a.) Pertaining to experiment; founded on, or derived from, experiment or trial; as, experimental science; given to, or skilled in, experiment; as, an experimental philosopher.
  • (a.) Known by, or derived from, experience; as, experimental religion.

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 distribution and configuration of the experimental ruptures were similar to those usually noted as complications of human myocardial infarction.
  • (3) The predicted non-Lorentzian line shapes and widths were found to be in good agreement with experimental results, indicating that the local orientational order (called "packing" by many workers) in the bilayers of small vesicles and in multilamellar membranes is substantially the same.
  • (4) Clinical signs of disease developed as early as 15 days after transition to the experimental diets and included impaired vision, decreased response to external stimuli, and abnormal gait.
  • (5) The various evocational changes appear to form sets of interconnected systems and this complex network seems to embody some plasticity since it has been possible to suppress experimentally some of the most universal evocational events or alter their temporal order without impairing evocation itself.
  • (6) Single-case experimental designs are presented and discussed from several points of view: Historical antecedents, assessment of the dependent variable, internal and external validity and pre-experimental vs experimental single-case designs.
  • (7) Parents of subjects at the experimental school were visited at home by a community health worker who provided individualized information on dental services and preventive strategies.
  • (8) In each study, all subjects underwent four replications (over two days) of one of the six permutations of the three experimental conditions; each condition lasted 5 min.
  • (9) Content of cyclic nucleoside monophosphates was decreased in all the eye tissues in experimental toxico-allergic uveitis as well as penetration of cAMP into the fluid of anterior chamber of the eye.
  • (10) The performance characteristics of the CCD are well documented and understood, having been quantified by many experimenters, especially in the physical sciences.
  • (11) Because of the dearth of epidemiological clues as to causation, studies with experimental animal models assume greater importance.
  • (12) A beta-adrenergic receptor cDNA cloned into a eukaryotic expression vector reliably induces high levels of beta-adrenergic receptor expression in 2-12% of COS cell colonies transfected with this plasmid after experimental conditions are optimized.
  • (13) Neither Brucella organisms, nor increased numbers of neutrophils could be found in semen samples collected from the experimental animals.
  • (14) An experimental Anaplasma marginale infection was induced in a splenectomized mule deer (Odocoileus hemionus hemionus) which persisted subclinically at least 376 days as detected by subinoculation into susceptible cattle.
  • (15) Reasonably good agreement is seen between theoretical apparent rate-vesicle concentration relationships and those measured experimentally.
  • (16) This value is about 30 times higher than the association constant for guanine-cytosine base pair formation under the same experimental conditions.
  • (17) This experimental system allows separation of three B lymphocyte developmental stages: early differentiation in vitro, progression to IgM secretion in vivo, and late differentiation dependent upon mature T lymphocytes in vivo.
  • (18) An experimental autoimmune model of nerve growth factor (NGF) deprivation has been used to assess the role of NGF in the development of various cell types in the nervous system.
  • (19) In the liver of albino rats with experimental thyrotoxicosis a study was made of nucleic acids and some indices of phosphorus metabolism: total and inorganic phosphorus, total and acid-soluble phosphorus, phosphorus of RNA, DNA and phosphoproteins.
  • (20) Current status of prognosis in clinical, experimental and prophylactic medicine is delineated with formulation of the purposes and feasibility of therapeutic and preventive realization of the disease onset and run prediction.

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.