33 research outputs found
Determination of nutrient salts by automatic methods both in seawater and brackish water: the phosphate blank
Get PDF9 páginas, 2 tablas, 2 figurasThe main inconvenience in determining nutrients in seawater by automatic methods is simply solved:
the preparation of a suitable blank which corrects the effect of the refractive index change on the recorded
signal. Two procedures are proposed, one physical (a simple equation to estimate the effect) and the other
chemical (removal of the dissolved phosphorus with ferric hydroxide).Support for this work came from CICYT (MAR88-0245 project) and
Conselleria de Pesca de la Xunta de GaliciaPeer reviewe
Spectral study of the Laplace–Beltrami operator arising in the problem of acoustic wave scattering by a quarter-plane
No full text
Goodness-of-fit tests for correlated paired binary data
No full text10.1177/0962280210381176Statistical Methods in Medical Research214331-345SMMR
Measuring nominal scale agreement between a judge and a known standard
No full textcategorical data, nominal data, Fisher's tea-tasting experiment, Fleiss' Kappa, multinomial distribution, power comparisons, computer algorithm,
