OBJECTIVE To develop a hierarchical scale that measures activity limitations in climbing stairs in patients with lower-extremity disorders living at home. DESIGN Cross-sectional study with Mokken scale analysis of 15 dichotomous items. SETTING Outpatient clinics of secondary and tertiary care centers. PARTICIPANTS Patients (N=759; mean age +/- standard deviation, 59.8+/-15.0y; 48% men) li...

Resting-state functional magnetic resonance imaging (rs-fMRI) has been used to study changes in long-range functional brain connectivity in multiple sclerosis (MS). Yet little is known about how MS affects functional brain connectivity at the local level. Here we studied 42 patients with MS and 30 matched healthy controls with whole-brain rs-fMRI at 3 T to examine local functional connectivity....

In fMRI both model-led and exploratory data-driven methods are used to identify groups of voxels according to their correlation either with an external reference or with some similarity measure. Here we present a technique to assess intragroup homogeneity using Kendall's coefficient of concordance W once groups have been identified. We show that the time-courses belonging to the group may be ra...

The article presents the results of homogeneity assessments for selected food mixes based on computer image analysis. study was conducted müsli and condiment standardly available consumer market. A total 40 different ready-for-use products were analysed. Collected samples from three package each product placed in a special chamber then photographed. Photographs subjected to analysis acquire inf...

The article deals with the problems of aggressiveness and homogeneity visual environment settlements. calculation coefficient for in village Maryanskaya along streets Severnaya Shevchenko was carried out. conclusion is made about relevance under consideration rural areas cities.

This study investigates the potential of object-based texture parameters extracted from 15m spatial resolution ASTER imagery for estimating tree size diversity in a Mediterranean forested landscape in Turkey. Tree size diversity based on tree basal area was determined using the Shannon index and Gini Coefficient at the sampling plot level. Image texture parameters were calculated based on the g...

Imaging studies have reported marked reductions in brain glucose metabolism in Alzheimer's Disease (AD). However, less is known about disruptions in the patterns of brain metabolic activity. Here we questioned whether AD affects the patterns of homogeneity/heterogeneity in brain metabolism. PET images of 35 AD subjects were compared with those of 35 controls. A template was applied to extract a...

By utilizing conventional techniques of pressure ultrafiltration, gel filtration chromatography, diethylaminoethyl cellulose chromatography, and preparative polyacrylamide electrophoresis, the A component of the group D lysin produced by Streptococcus zymogenes has been purified to a state of apparent homogeneity when determined by the techniques of anionic and cationic disc gel electrophoresis...