The nonparametric Wilcoxon–Mann–Whitney test is commonly used by experimental economists for detecting differences in central tendency between two samples. This test is only theoretically appropriate under certain assumptions concerning the population distributions from which the samples are drawn, and is often used in cases where it is unclear whether these assumptions hold, and even when they...

The Mann-Whitney U test is frequently used to evaluate treatment effects in randomized experiments with skewed outcome distributions or small sample sizes. It may lack power, however, because it ignores the auxiliary baseline covariate information that is routinely collected. Wald and score tests in so-called probabilistic index models generalize the Mann-Whitney U test to enable adjustment for...

Background - Stroke represents one of the most important causes of permanent physical or mental disability. A number of recent advances in recovery have reinforced the idea that pharmacological intervention combined with a specific rehabilitation therapy can reduce disability after stroke. Objective - The aim of this trial was to demonstrate the hypothesis that the association of pharmacologica...

background: the aim of this study was to evaluate the protein spots of excre-tory - secretory products of fasciola hepatica using two dimension electrophoresis method in the presence and absence of triclabendazole drug which can be consid-ered to detect the target protein of the drug. methods: f. hepatica parasites were collected from infected cattle livers, divided in two groups and cultivated...

OBJECTIVE The aim of this study was to evaluate alternative methods for the disinfection of denture-based materials. MATERIAL AND METHODS Two different denture-based materials were included in the study. Before microbial test, the surface roughness of the acrylic resins was evaluated. Then, the specimens were divided into 8 experimental groups (n = 10), according to microorganism considered a...