نتایج جستجو برای: mann whitney u test
تعداد نتایج: 966662 فیلتر نتایج به سال:
“Supplementary Figure 1. Effect of activity blockade on synaptic area, levels of Homer and Bassoon, Homer-Bassoon colocalization values in three independent experiments, and the relationship between the colocalization values and synaptic properties. (A) TTX treatment does not affect the size of synaptic clusters. P > 0.05, Mann-Whitney test. (B) TTX treatment increases synaptic levels of Homer....
PURPOSE To evaluate morphologic changes in meibomian glands (MGs) and the status of periglandular inflammation in patients with primary and secondary Sjögren's Syndrome (SS) using in vivo confocal laser microscopy (LSCM). METHODS Twenty patients with primary SS (SSI), 25 with secondary SS (SSII), 20 with MG dysfunction (MGD), and 25 age- and gender-matched control subjects were enrolled conse...
The aim of the present study was to evaluate serum concentrations of vascular endothelial growth factor (VEGF) in patients with vulvar cancer and healthy female controls with respect to correlation of VEGF with clinicopathological parameters and impact on the patients' prognosis. Serum concentrations of VEGF were measured using a commercially available ELISA. Results were correlated to clinical...
PURPOSE Investigations in the field of the learning competence that investigate the impact of the acquisition of new individual competence of those responsible for ophthalmologic clinics, by means of a MBA Administration in Health course, on the organizational modernity of ophthalmologic clinics. METHODS Survey using questionnaires applied to students and former students of the course and to ...
We show the combinatorics behind the Wilcoxon-Mann-Whitney two-sample test. This yields new combinatorial proofs of recurrences for its null distribution given recently by Brus and Chang, as well as new recurrences. It is shown how to convert these recurrences into generating functions. These generating functions are used to obtain closed expressions for the null distribution when one of the sa...
The authors present an improved ranked set two-sample Mann-Whitney-Wilcoxon test for a location shift between samples from two distributions F and G. They define a function that measures the amount of information provided by each observation from the two samples, given the actual joint ranking of all the units in a set. This information function is used as a guide for improving the Pitman effic...
In CBIR system, relevance feedback is used to improve the retrieval performance. In this paper, a new MannWhitney test based method is presented to identify the features which can distinguish relevant and irrelevant images in a retrieved set. Then the discriminating features are given more emphasis to improve retrieval performance. Proposed scheme is implemented for two different similarity mea...
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