نتایج جستجو برای: wilcoxon rank sum test
تعداد نتایج: 938516 فیلتر نتایج به سال:
Macular ischaemia has a central role in the pathophysiology and prognosis of retinal macular disease. We attempted to quantitate two of its major components as follows: vascular nonperfusion, by measuring the foveal avascular zone (FAZ), using fluorescein angiography; and functional damage, using automated perimetry of the central 30 degrees. Sickle cell disease was chosen for study because it ...
OBJECTIVE To observe and evaluate a method that is effective and practical for treatment of cerebral palsied (CP) children in China. METHOD The patient's age and disease type and individual specific conditions were considered in choosing therapy methods accordingly: Chinese herbs, acupuncture, auricular seed pressure, point finger pressing, massage, orthopedic hand manipulation, physiotherapy...
Methods In this two-stage crossover trial, seven females (mean age 26±4 years) were randomlyassigned to a sequence of two treatments (Rescue remedy and placebo) with a onemonth wash-out period. The Rescue remedy consisted of four drops of five flower essences (cherry plum, clematis, impatiens, rock rose and Star of Bethlehem) dissolved in brandy and 250 ml of distilled water. The placebo consis...
AIM To compare electromyographic (EMG) activity in young-adult subjects with different breathing types. METHODOLOGY This study included 50 healthy male subjects with complete natural dentition, and no history of orofacial pain or craniomandibular-cervical-spinal disorders. Subjects were classified into two groups: upper costal breathing type, and costo-diaphragmatic breathing. Bipolar surface...
Iron Supplementation is generally recommended during pregnancy to meet the iron requirement of both mother and fetus. When detected early in pregnancy, iron deficiency anemia (IDA) is associated with an increase in the risk of preterm delivery. Deficiency of Vitamin C also causes poor iron absorption leading to IDA. This paper deploys non-parametric statistics to analyse and compare the hemoglo...
In this paper, we present a gene selection method based on genetic algorithm (GA) and support vector machines (SVM) for cancer classification. First, the Wilcoxon rank sum test is used to filter noisy and redundant genes in high dimensional microarray data. Then, the different highly informative genes subsets are selected by GA/SVM using different training sets. The final subset, consisting of ...
The study was designed to investigate the possible role of endogenous opioids in the fall in blood pressure (BP) seen during initial sleep. Seven normal men, ages 20-30 years, were studied for three consecutive nights. Each night, electroencephalogram, chin electromyogram, electrooculogram, heart rate (all continuously), and blood pressure (every 15 minutes) were recorded. Night 1 was used for ...
Methods 65 healthy subjects (age=43±14 yrs, 20 females) underwent aortic 4D flow MRI as part of an IRB-approved protocol. A 3D phase-contrast angiogram was generated from the 4D flow data followed by 3D segmentation of the aortic lumen. A volume centerline was calculated based on the aorta 3D segmentation and used to automatically characterize aortic diameter (AoD) and peak velocity (PV). Stand...
UNLABELLED In the last few years, numerous methods have been proposed for microarray-based class prediction. Although many of them have been designed especially for the case n << p (much more variables than observations), preliminary variable selection is almost always necessary when the number of genes reaches several tens of thousands, as usual in recent data sets. In the two-class setting, t...
BACKGROUND Given the uncertainties inherent in clinical measures of prostate cancer aggressiveness, clinically validated tissue biomarkers are needed. We tested whether Alpha-2-Glycoprotein 1, Zinc-Binding (AZGP1) protein levels, measured by immunohistochemistry, and RNA expression, by RNA in situ hybridization (RISH), predict recurrence after radical prostatectomy independent of clinical and p...
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