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Correction: Geochemical signatures in plastic debris from the Curonian Lagoon, Lithuania. [PDF]
PLoS OneAbbasi S +7 more
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The design of a small Bayesian hybrid-controlled trial utilizing time-to-event data from six published sources that used best alternative care to treat liver-predominant metastasis from primary ocular melanoma. [PDF]
Contemp Clin Trials CommunZahrieh D +3 more
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Error propagation in calculated ratios
Clinical Biochemistry, 2007Calculated quantities that combine results of multiple laboratory tests have become popular for screening, risk evaluation, and ongoing care in medicine. Many of these are ratios. In this paper, we address the specific issue of propagated random analytical error in calculated ratios.Standard error propagation theory is applied to develop an approximate
Daniel T, Holmes, Kevin A, Buhr
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Diagnostique, 1997
Special and general educators have frequently felt either untrained or bound by time constraints in using existing techniques of informal assessment. We present a description and demonstration of the use of error ratio analysis, a simple technique for assessing mathematics performance.
James H. Miller, Sonya C. Carr
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Special and general educators have frequently felt either untrained or bound by time constraints in using existing techniques of informal assessment. We present a description and demonstration of the use of error ratio analysis, a simple technique for assessing mathematics performance.
James H. Miller, Sonya C. Carr
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Ratio Estimation with Measurement Error in the Auxiliary Variate
Biometrics, 2009Summary With auxiliary information that is well correlated with the primary variable of interest, ratio estimation of the finite population total may be much more efficient than alternative estimators that do not make use of the auxiliary variate. The well‐known properties of ratio estimators are perturbed when the auxiliary variate is measured with ...
Gregoire, Timothy G., Salas, Christian
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VARIATION OF THE GREEN-RED RATIO WITH REFRACTIVE ERROR
Optometry and Vision Science, 1983ABSTRACT The relationship of refractive error to green‐red ratios among color normals was investigated by asking 27 subjects to match a standard yellow with a mixture of red and green primaries using a Nagel anomaloscope. Green‐red ratios did not show any regular change with refractive error.
R L, Degen, S D, Mullane, O W, Richards
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Errors on ratios of small numbers
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1987Abstract Errors on ratios are discussed in the case of binomial and Poisson distributions; tables giving the upper and lower limits of the confidence region for a confidence level of 68.3% are provided for small numbers.
A. De Angelis, M. Iori
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Refractive Error and the Green/Red Ratio*
Journal of the Optical Society of America, 1960Studies utilizing the Rayleigh equation have indicated that color normal subjects may use widely varying proportions of red and green to match a standard yellow. Six subjects with known refractive errors and with normal color vision made a series of red-green matches to a standard amount of the yellow stimulus. The green/red ratios were plotted against
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