(n.) A board with sixty-four squares of alternate color, used for playing checkers or draughts.
Example Sentences:
(1) Strains showing occasional antagonism at a particular proportion of concentrations of the test combination, were found to only be indifferent when the mean index of the fractional inhibition concentration of all checkerboard combinations was calculated.
(2) In Experiment 1, newborns differentiated gray from green, from yellow, and from red: For each of these hues they preferred chromatic-and-gray checkerboards over gray squares matched in mean luminance, even though the luminance of the gray checks was varied systematically over a wide range so as to minimize nonchromatic cues.
(3) Using the quantitative induction assay, the checkerboard method and the disc approximation test, clavulanic acid was shown to act as inducer for all species, whereas sulbactam only induced strains of Providencia stuartii.
(4) The fields formed a checkerboard pattern the element size of which variable.
(5) The new Austrian HTC, partly defined by the 9th International Histocompatibility Workshop (9WS), partly by a checkerboard experiment with internationally well defined reference HTC, type for HLA-Dw1 to -Dw7 and an obviously new, so far unknown HLA-DR2 related HLA-D determinant.
(6) The latency of the first reproducible positive peak in the P-VEP was measured monocularly and binocularly for five sizes of phase alterations checkerboard stimuli (range: 120' to 7.5' check widths).
(7) Induction of chemotaxis of LGL by OAG was time and dose-dependent, as confirmed using checkerboard assays.
(8) The released activity was chemotactic by checkerboard analysis.
(9) Responses were obtained to phase-alternating checkerboards of varying check size.
(10) The MTS task employed randomly generated checkerboard-like stimuli presented on a video display.
(11) The stimulus was a checkerboard phase-reversed at the frequency of 1 Hz, binocularly viewed by the subject.
(12) An operant technique was used to train 10-wk.-old infants on a simultaneous discrimination task with a checkerboard cube and a bull's-eye sphere presented in a stationary form.
(13) The combination of peracetic acid and hydrogen peroxide, tested by a checkerboard micromethod, was found to be synergistic.
(14) Initially the responses to checkerboard flash or reversal stimuli were computer-averaged in order to raise the signal above the noise, primarily the electroencephalogram (EEG).
(15) The patterned stimuli used were checkerboard-like matrices containing, on the average, 4, 36, 100, 400, or 900 bits of information.
(16) This stimulated migration was dose-dependent, and by checkerboard analysis was both chemotactic and chemokinetic.
(17) C-cells divided once during the kagome-checkerboard transformation, while G-cells did not divide.
(18) No synergy or antagonism was found by means of the checkerboard titration method used.
(19) Three background conditions were used: a naturalistic landscape photograph, a blank field, and a repeating checkerboard texture that provides strong contours but no information about visual direction.
(20) Consequently, the pattern electroretinogram to reversing checkerboards has to be regarded as a mixture of both pattern- (contrast) and luminance-specific components.
Pattern
Definition:
(n.) Anything proposed for imitation; an archetype; an exemplar; that which is to be, or is worthy to be, copied or imitated; as, a pattern of a machine.
(n.) A part showing the figure or quality of the whole; a specimen; a sample; an example; an instance.
(n.) Stuff sufficient for a garment; as, a dress pattern.
(n.) Figure or style of decoration; design; as, wall paper of a beautiful pattern.
(n.) Something made after a model; a copy.
(n.) Anything cut or formed to serve as a guide to cutting or forming objects; as, a dressmaker's pattern.
(n.) A full-sized model around which a mold of sand is made, to receive the melted metal. It is usually made of wood and in several parts, so as to be removed from the mold without injuring it.
(v. t.) To make or design (anything) by, from, or after, something that serves as a pattern; to copy; to model; to imitate.
(v. t.) To serve as an example for; also, to parallel.
Example Sentences:
(1) The patterns observed were: clusters of granules related to the cell membrane; positive staining localized to portions of the cell membrane, and, less commonly, the whole cell circumference.
(2) This paper discusses the typical echocardiographic patterns of a variety of important conditions concerning the mitral valve, the left ventricle, the interatrial and interventricular septum as well as the influence of respiration on the performance of echocardiograms.
(3) A change in the pattern of care of children with IDDM, led to a pronounced decrease in hospital use by this patient group.
(4) These eight large plasmids had indistinguishable EcoRI restriction patterns.
(5) Participants (n=165) entering a week-long outpatient education program completed a protocol measuring self-care patterns, glycosylated hemoglobin levels, and emotional well-being.
(6) The pattern of the stressor that causes a change in the pitch can be often identified only tentatively, if there is no additional information.
(7) The nuclear origin of the Ha antigen was confirmed by the speckled nuclear immunofluorescence staining pattern given by purified antibody to Ha obtained from a specific immune precipitate.
(8) The subcellular distribution of sialyltransferase and its product of action, sialic acid, was investigated in the undifferentiated cells of the rat intestinal crypts and compared with the pattern observed in the differentiated cells present in the surface epithelium.
(9) The histological pattern of tumor was identified in 28 cases.
(10) We evaluated the circadian pattern of gastric acidity by prolonged intraluminal pHmetry in 15 "responder" and 10 "nonresponder" duodenal ulcer patients after nocturnal administration of placebo, ranitidine, and famotidine.
(11) In the presence of insulin, a qualitatively similar pattern of increasing responses to albumin is observed; the enhancement of each response by insulin is, however, only slightly potentiated by higher albumin concentrations.
(12) It was the purpose of the present study to describe the normal pattern of the growth sites of the nasal septum according to age and sex by histological and microradiographical examination of human autopsy material.
(13) Together these observations suggest that cytotactin is an endogenous cell surface modulatory protein and provide a possible mechanism whereby cytotactin may contribute to pattern formation during development, regeneration, tumorigenesis, and wound healing.
(14) The significance of the differences in these two patterns of actin is discussed in terms of differences in the accommodative ability and static lens shape in these two animals.
(15) Chromatographic maps of DNA adducts demonstrated unique patterns of DNA adducts for each of the regions.
(16) A triphasic pattern was evident for the neck moments including a small phase which represented a seating of the headform on the nodding blocks of the uppermost ATD neck segment, and two larger phases of opposite polarity which represented the motion of the head relative to the trunk during the first 350 ms after impact.
(17) In the upper limb and facial forms of familial amyloidotic polyneuropathy first recorded in Swiss and Finns respectively, the differences in their patterns of neurological disease and ocular lesions could be the result of their amyloids deriving from proteins other than prealbumin.
(18) A murine keratinocyte cell line that is resistant to the growth-inhibitory effects of transforming growth factor beta 1 (TGF beta 1) was examined for differential gene expression patterns that may be related to the mechanism of the loss of TGF beta 1 responsiveness.
(19) The pattern and intensity were followed up for up to 15 days.
(20) LH and FSH levels in the group which were given low dose progesterone only, rose consistently after BSO and these patterns were similar to those seen in the control group.