(a.) Having four equal sides, the opposite sides parallel, and four right angles; square.
(a.) Produced by multiplying a number by itself; square.
(a.) Square; even; balanced; equal; exact.
(a.) Squared; suited; correspondent.
(a.) A plane surface with four equal sides and four right angles; a square; hence, figuratively, anything having the outline of a square.
(a.) An aspect of the heavenly bodies in which they are distant from each other 90ยก, or the quarter of a circle; quartile. See the Note under Aspect, 6.
(a.) The quadrate bone.
(a.) To square; to agree; to suit; to correspond; -- followed by with.
(v. t.) To adjust (a gun) on its carriage; also, to train (a gun) for horizontal firing.
Example Sentences:
(1) Two recent innovations in time-dose models are reviewed: the linear-quadratic (L-Q) and the variable-exponent Time-Dose Factor (TDF) models.
(2) A sample of 481 clinical isolates from nine of the most commonly isolated gram-negative groups was identified by the quadratic discriminant function technique.
(3) The reported second-order quadratic curves could be used as reference for prosthetic and orthodontic reconstructions.
(4) Egg production and egg specific gravity were correlated to D3 level in a quadratic fashion.
(5) The pattern of gastric emptying assumed the following three attitudes, that is, exponential (44%), quadratic (29%) and unclassified (27%) pattern.
(6) Plasma urea concentrations decreased linearly (P less than .01) on d 28 as lysine level increased, whereas plasma lysine and insulin were increased (quadratic, P less than .01).
(7) Sound velocities, breaking strengths calculated from velocities adjusted for estimated soft tissue cover, measured bone mediolateral diameters and cannon diameters minus estimated soft tissue increased as quadratic functions of chronologic age (r greater than .840; P less than .0001).
(8) This model corresponds to quadratic summation of the stimulus followed by a random threshold device.
(9) The growth rate of broiler chicks fed the diets increased quadratically (P less than .001) with L-threonine addition.
(10) Primitively, vibrations reached the stapes mainly via the anterior hyoid cornu, but in dicynodonts, therocephalians, and cynodants vibrations passed mainly or exclusively from mandible to quadrate to stapes and the reflected lamina was a component of the eardrum.
(11) In the 3 subsets with duration of disease less than 21 years, stepwise regression produced in the final step linear or quadratic combinations not containing duration of disease but correlating quite well with the 'Larsen index' (R = 0.64-0.96).
(12) Conduction changes were better fitted by this "quadratic model" (least sum of squared deviations 3.9 x 10(-3) by mapping in five dogs, 2.7 x 10(-2) by use of QRS duration in nine dogs) than by a monoexponential model (sum of squared deviations 5.7 x 10(-3) by mapping, 3.4 x 10(-2) with QRS; p less than 0.01 vs. quadratic model for each).
(13) The diagnosis of gravity rests on the measurement of the mean gradient by applying Bernouilli's equation and the point by point quadratic transformation of the transmitral velocity curve obtained by Doppler and the measurement of the mitral area either by measurement of the half-decrease time in pressure or by applying the continuity equation.
(14) In the case of quadratic regression, the type I error will be increased by roughly 50 per cent.
(15) Both food and water intake showed a quadratic relationship with the level of added dietary Cu.
(16) were not found to increase when tested by linear and quadratic models of time trend.
(17) Dose-effect relationships for most of the sampling times were linear and sometimes linear-quadratic concave upward or downward.
(18) The parietal, squamosal, and exoccipital bones, and the quadrate cartilage were displaced when otic capsule material was absent or oversized.
(19) In 1,071 men randomly selected from the general population and in an unrelated sample of 1,209 military men, systolic and diastolic blood pressure were correlated with urinary sodium following a model, which included both the linear and quadratic terms of urinary sodium.
(20) A quadratic discriminant analysis of morphometric-densitometric data of tumour cell nuclei and semiquantitative microscopic data gave a 94% agreement with subjective grading.
Quartile
Definition:
(n.) Same as Quadrate.
Example Sentences:
(1) Subjects in the highest quartile of the insulin distribution had 6.6 times the risk of developing type II diabetes as subjects in the remaining three quartiles combined (95% confidence interval [CI] = 3.14-13.7).
(2) The effects of low-chromium diets containing chromium in the lowest quartile of normal intake on glucose tolerance and related variables in 11 females and 6 male subjects were evaluated.
(3) When divided into quartiles based on the central adiposity ratio, only women in the fourth quartile (those with the highest central to peripheral body fat distribution) demonstrated an increased risk for breast cancer.
(4) Although calculation of the observed heart rate as a percent of that expected at the midpoint and end of each quartile of exercise used fewer observations, it provided similar results.
(5) Children consistently in the highest BP quartile had greater relative weight and higher heart rates in all three positions.
(6) Children in the upper two quartiles of fiber intake were estimated to have a 30 per cent lower risk of appendicitis than children in the lowest quartile.
(7) The lowest quartile of AMC was found most reliably by measuring plasma methionine, histidine, leucine and isoleucine concentrations.
(8) For a score based on consumption of only the 3 specified salad items the odds ratio over the extreme quartiles was 0.12 (0.05-0.32).
(9) Infants in the third quartile were fussy at the commencement of the period and became gradually more placid from the fifth week of life.
(10) Four hundred thirty-four patients (234 men, 200 women) greater than 40 years of age were stratified by gender and then divided into quartiles on the basis of a B-mode score that was derived by summing arterial wall thickness at nine sites in the left and nine sites in the right carotid arteries.
(11) The median (25,75 quartiles) rate of muscle protein synthesis after an overnight fast was 2.03 (2.00,2.23) % days-1 when the precursor enrichment was obtained by measurement of the plasma alpha-ketoisocaproate, taken to be representative of muscle free leucine.
(12) Mortality was as high as 81% in the bottom quartile (PHDL less than 13%), with a relative mortality risk of 1.71 for subjects in the bottom quartile compared to those in the top quartile (PHDL greater than or equal to 19%).
(13) The major finding was an inverse relationship between fruit intake and risk of oral and pharyngeal cancer; individuals in the highest quartile of intake had about half the risk of those in the lowest quartile.
(14) Those in the top and bottom quartiles on intrinsic motivation were classified as either relatively task intrinsically motivated or task extrinsically motivated and were assigned to behavior regulation conditions: self-regulated reinforcement, externally imposed reinforcement, or control.
(15) Three data reduction methods are discussed: the classification with respect to frequency bands, the search for prominent frequencies, and the computation of quartiles of the frequency spectra.
(16) Tumor latency decreased with increasing dose of MNU, but the quartiles for time to detection of all tumors within each carcinogen dose group were similar irrespective of anatomical region in which the tumors occurred.
(17) This was true not only for the relation between average latencies but also for the relation between corresponding quartiles of latency distributions.
(18) Epidemiologic analysis demonstrated a fivefold decrease in risk for severe ASCAD between the lowest and the highest quartile of total testosterone.
(19) The relative risk of developing proteinuria after 4 years for those with glycosylated hemoglobin levels in the highest quartile compared with those in the lowest quartile was 3.0 (95% confidence interval, 1.6 to 5.3).
(20) Median followup period was 6.5 years, quartiles 5.5 and 8.0 years.