background: in its constitution of 1948, who defined health as “a state of complete physical, mental, and social well-being, and not merely the absence of disease and infirmity” . in 1994, the agency for health care policy and research published clinical practice guidelines recommending providers to routinely evaluate patients’ hrqol (health related quality of life) and use their assessment to ...

objectives: the percentage of vowel correct (pvc) is one of the indices in the development of articulation and phonological skills in children that can be measured with speech samples that could be extracted from the single word or connected speech tests. the aim of this study is to introduce the pvc scale in persian speaking children and investigate its validity and reliability. methods: this ...

This paper presents an investigation into the classification of a difficult data set containing large intra-class variability but low inter-class variability. Standard classifiers are weak and fail to achieve satisfactory results however, it is proposed that a combination of such weak classifiers can improve overall performance. The paper also introduces a novel evolutionary approach to fuzzy r...

Most biometric systems deployed in real-world applications are unimodal. Using unimodal biometric systems have to contend with a variety of problems such as: Noise in sensed data; Intra-class variations; Inter-class similarities; Nonuniversality; Spoof attacks. These problems have addressed by using multibiometric systems, which expected to be more reliable due to the presence of multiple, inde...

Pattern recognition is a machine learning process that emphasizes on the various discontinuities in data. It can also be stated as how machines differentiate the region of interest from the background. This is initially done by the classification of patterns either into supervised or unsupervised class based on the similarity or system designer. A well defined recognition system will have less ...

this study is carried out to determine effective risk factors for early death and their causes in those who died due to intra cerebral hemorrhage within 30 days.materials and methods: from patients who have been admitted in neurologic ward of imam khomeini hospital in tabriz, we enrolled 100 patients with intra cerebral hemorrhage and the causes and risk factors effective in early death were ev...

This paper proposes a new method of image thresholding by using cluster organization from the histogram of an image. A new similarity measure proposed is based on inter-class variance of the clusters to be merged and the intra-class variance of the new merged cluster. Experiments on practical images illustrate the effectiveness of the new method. 2006 Elsevier B.V. All rights reserved.

Marathon runners are ranked in 5-year age groups. However the extent to which 5-year groupings facilitates equitable competition has not been evaluated. The aim of this study was to evaluate the effect of relative age in male and female marathon running. Marathon finishing times for the top ten male (aged 20-69 years) and female athletes (aged 20-64 years) were obtained from the 2013 New York a...