Analysis of P-wave duration from the ECG has been widely used to predict the onset of atrial fibrillation (AF). Given the low amplitude of Pwaves, this index has been mainly computed by using signal-averaging algorithms, thus discarding the clinically relevant information from its time course. This work presents an alternative based on a nonlinear approach, the central tendency measure, to quan...

to identify temporal and spatial precipitation models in the southern coasts of caspian sea, principle component analysis (pca) and clustering analysis (ca) were used. in this study, using daily precipitation data, measure of central tendency, statistical dispersion and percentages of three variables of duration, amount and intensity of precipitation events in 46 synoptic, climatic and rain gau...

the aim of this research was to present a model to assess the performance of sports organizations with balance scorecard (bsc) and topsis. the population involved all employees of physical education general department of yazd province as well as the coaches and athletes of this province and 119 subjects were selected as the sample using sample size formula. a researcher–made questionnaire was u...

the aim of this paper is to show how some measures of noncompactness in the banach space of continuous functions defined on two variables can be applied to the solvability of a general system of functional integral equations . the results obtained generalize and extend several equations . an illustrative example is also presented .