We consider the blind separation of convolutive mixtures based on the joint diagonalization of time varying spectral matrices of the observation records. The goal is to separate audio mixtures in which the mixing filter has quite long impulse responses and the signals are highly non stationary. We rely on the continuity of the frequency response of the filter to eliminate the permutation ambigu...

this study examined the differences among high, mid and low ambiguity tolerance groups in their reading comprehension ability and their metacognitive awareness of reading strategies. to this end, 123 first-year college students majoring in engineering with an age range of 19-25 were stratified into three groups of high, mid and low ambiguity tolerance to participate in the study. they took part...

This study investigated teachers’ conceptions of intelligence (TCoI) and ambiguity tolerance in the burnout levels of 202 Iranian EFL teachers. To this end, 3 inventories were utilized: Language Teachers’ Conceptions of Intelligence Scale (LTCI-S), Multiple Stimulus Types Ambiguity Tolerance Scale-II (MSTAT-II), and Maslach Burnout Inventory (MBI). Pearson multiple correlation coefficients and ...

background nursing teachers have difficulties fulfilling multiple roles expectations and balancing the various dimensions of their roles that may lead to role strain. in order to lack of culturally and academically proper scale in iran to measure role strain in nursing teachers, localizing a foreign scale in this field is necessary. objectives the objective of this study was psychometric evalua...

Reconstructing binary matrices from their row, column, diagonal, and antidiagonal sums (also called projections) plays a central role in discrete tomography. One of the main difficulties in this task is that in certain cases the projections do not uniquely determine the binary matrix. This can yield an extremely large number of (sometimes very different) solutions. This ambiguity can be reduced...