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Abstract With explanatory covariates, the standard analysis for competing risks data involves modeling the cause-specific hazard functions via a proportional hazards assumption. Unfortunately, the cause-specific hazard f...

In this study, the influence of Croton tiglium seeds on the pharmacokinetic of rhein in Radix et Rhizoma Rhei was performed to elucidate the compatibility relationship of these two herbs. The pharmacokinetics of rhein w...

The aim of this work is evaluate the influence of extractives parameters on tannin content of solutions obtained from leaves of P. guajava and the antimicrobial activity of the best extract solution. The type of extracti...

Se estudio la ecología trófica y uso del microhábitat de Dendrobates auratus y Oophaga pumilio en un área de simpatría entre las dos especies ubicada en la Estación Biológica La Selva, Costa Rica. En este sitio am...

El objetivo del presente trabajo fue evaluar la robustez del método CLAR-fase invertida, previamente validado, para separación y cuantificación de catequina y epicatequina. La robustez fue investigada por medio de un...

An efficient method for the calculation of the interactions of a 2m factorial experiment was introduced by Yates and is widely known by his name.The generalization to 3m was given by Box et al. [1].Good [2] generalized t...