What's the difference between uncertain and variable?

Uncertain


Definition:

  • (a.) Not certain; not having certain knowledge; not assured in mind; distrustful.
  • (a.) Irresolute; inconsonant; variable; untrustworthy; as, an uncertain person; an uncertain breeze.
  • (a.) Questionable; equivocal; indefinite; problematical.
  • (a.) Not sure; liable to fall or err; fallible.
  • (a.) To make uncertain.

Example Sentences:

  • (1) However, the mechanism of the inhibitory action is still somewhat uncertain.
  • (2) Of course the job is not done and we will continue to remain vigilant to all risks, particularly when the global economic situation is so uncertain,” the chancellor said in a statement.
  • (3) The functional significance of these early changes in the nodal region is uncertain.
  • (4) Preservation of dopaminergic and H1 neurotransmission, probably within the blood barrier, is needed to allow the neuroendocrine transduction of cholinergic inputs, whereas the role of 5-HT neurotransmission remains uncertain.
  • (5) The nature of these infiltrative foci remains uncertain; however, they are unlikely to have been of neoplastic origin and may be due to interleukin-2-induced lymphocytic infiltration.
  • (6) Whether or not any alteration in disease progression will accrue from demonstrated local downstaging is, of course, uncertain.
  • (7) Similarly, it appears that acute hydronephrosis or worsening of an existing hydronephrosis has been somewhat overlooked as a possible cause of uncertain abdominal pain during pregnancy.
  • (8) In 11 patients, the electrophysiological mechanism remained uncertain.
  • (9) The nature of the cystatin C-immunoreactive substance in some of these vascular lesions is uncertain, but it might conceivably play an additional important role in the pathogenesis of brain hemorrhage in these cases.
  • (10) The mechanism of action is still uncertain but it is believed by some workers to be similar to that of a beta-adrenergic stimulator.
  • (11) Assays of drug levels in blood and of other biochemical characteristics of psychiatric patients are being proposed for clinical application, although their utility in practice remains uncertain.
  • (12) In 26 patients, including the two reported here, etiology was uncertain (idiopathic aneurysm of the left ventricle) in as much as malformation or an infectious disease might have been the underlying cause.
  • (13) Instead of inevitable defeat there is uncertain cop-out.
  • (14) The aetiology remains at present uncertain and therefore rational therapeutic strategies are difficult to plan.
  • (15) It was concluded that (1) there is a group of patients whose histories of poliomyelitis are uncertain, and (2) the lack of clear evidence for previous denervation after extensive electrodiagnostic testing is a valid means for excluding the diagnosis of postpoliomyelitis syndrome.
  • (16) Although approximately 24,000 adolescents were questioned, the investigations together provide an uncertain picture of the habits as these are not representative for Danish adolescents.
  • (17) McCall said the outlook remained uncertain: “The economic and operating environment remains uncertain, following the high levels of disruption and more recently the UK’s referendum decision to leave the EU, as well as the recent events in Turkey and Nice, which have affected consumer confidence.
  • (18) The significance of this event is uncertain; cleaved NGF demonstrates bioactivity and no function has been attributed to the octapeptide produced (NGF-OP; Ser-Ser-Thr-His-Pro-Val-Phe-His).
  • (19) While the histogenesis of these tumors remain uncertain, it is necessary to recognize that these aggressive neoplasms may occur primarily in the skin.
  • (20) Estimates of the number of eventual TA-AIDS cases to be seen are considerably more uncertain and require additional assumptions about the incubation distribution.

Variable


Definition:

  • (a.) Having the capacity of varying or changing; capable of alternation in any manner; changeable; as, variable winds or seasons; a variable quantity.
  • (a.) Liable to vary; too susceptible of change; mutable; fickle; unsteady; inconstant; as, the affections of men are variable; passions are variable.
  • (n.) That which is variable; that which varies, or is subject to change.
  • (n.) A quantity which may increase or decrease; a quantity which admits of an infinite number of values in the same expression; a variable quantity; as, in the equation x2 - y2 = R2, x and y are variables.
  • (n.) A shifting wind, or one that varies in force.
  • (n.) Those parts of the sea where a steady wind is not expected, especially the parts between the trade-wind belts.

Example Sentences:

  • (1) Although the mean values for all hemodynamic variables between the two placebo periods were minimally changed, the differences in individual patients were striking.
  • (2) 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.
  • (3) We have examined overlapping octapeptides from the kappa IIIb light chain variable region and show that some framework peptides have the ability to bind aggregated IgG.
  • (4) The family comprises at least three variable (V) gene segments, three constant (C) gene segments, and three junction (J) gene segments.
  • (5) Altogether 47 variables were investigated, and of these 34 gave results which were statistically significant.
  • (6) Variables included an ego-delay measure obtained from temporal estimations, perceptions of temporal dominance and relatedness obtained from Cottle's Circles Test, Ss' ages, and a measure of long-term posthospital adjustment.
  • (7) However, it is easier for them to cope with anxiety because premedication pacifies the patients, whereas each of the dependent variables, such as apprehension, is influenced differently.
  • (8) The half-life was very variable between subjects [2-8 hours], but less variable within subjects and it was unaffected by the formulation.
  • (9) Since 1979, patients started on long-term lithium treatment at the Psychiatric Hospital in Risskov have been followed systematically with recording of clinical and laboratory variables before the start of treatment, after 6 and 12 months of treatment, and thereafter at yearly intervals.
  • (10) Aside from these characteristic findings of HCC, it was important to reveal the following features for the diagnosis of well differentiated type of small HCC: variable thickening or distortion of trabecular structure in association with nuclear crowding, acinar formation, selective cytoplasmic accumulation of Mallory bodies, nuclear abnormalities consisting of thickening of nucleolus, hepatic cords in close contact with bile ducts or blood vessels, and hepatocytes growing in a fibrous environment.
  • (11) Examined specific relationships, as they occur in nature, between particular dietary variables or groups of variables and specific MMPI subscales.
  • (12) Excretion of inactive kallikrein again correlated with urine flow rate but the regression relationship between the two variables was different for water-load-induced and frusemide-induced diuresis.
  • (13) Our prospective study has defined a number of important variables in patients with clinical evidence of mast cell proliferation that can predict both the presence of SMCD and the likelihood of fatal disease.
  • (14) The dilemmas faced by the genetic counsellor are discussed in this variable autosomal dominant condition.
  • (15) Regression analysis on the 21 clinical or laboratory parameters studied showed that the only variable independently associated with CSF-FN was the total protein concentration in the CSF; this, however, explained only 14% of the observed variation in the CSF-FN concentration and did not show any correlation with CNS involvement.
  • (16) A number of variables which could influence the test has been evaluated and standardized in a way suitable for the routinary use of the technique described.
  • (17) There is a considerably larger variability of the mercury levels in urine than in blood.
  • (18) Blood gas variables produced from a computed in vivo oxygen dissociation curve, PaeO2, P95 and C(a-x)O2, were introduced in the University Hospital of Wales in 1986.
  • (19) Variability (CV = 0.7%) in body volume of a 45-year-old reference man measured by SH method was very similar to variation (CV = 0.6%) in mass volume of the 60-1 prototype.
  • (20) Both demographically and clinically assessed behavioral variables were related to a number of outcome measures, including days in the community, clinical ratings, and family assessment.