Dans une permutation, un record est maximum ou minimum, en partant de la droite gauche. Les éléments d’une permutation peuvent être classés deux types : les records (dits points extérieurs) et autres intérieurs). permutations sans point intérieur ont été étudiées sous le nom carrées. Ici, nous explorons ayant nombre fini intérieurs, dites quasi-carrées. Contrairement aux carrées, l’énumération ...

Objectives: Studies around the world have shown that having a child with disability impacts a mother’s time use. The purpose of this study was to compare the time use of mothers of children with Autism Spectrum Disorder (ASD) with mothers of typically developing children. Methods: Eighty-four Iranian mothers (42 with ASD children and 42 with typically developing children) completed the M...

In the present study, analytical solutions are obtained for two-dimensional advection dispersion equation for conservative solute transport in a semi-infinite heterogeneous porous medium with pulse type input point source of uniform nature. The change in dispersion parameter due to heterogeneity is considered as linear multiple of spatially dependent function and seepage velocity whereas seepag...

Recent observations from LOFAR indicate that multiple, spatially distributed corona bursts can occur in lightning processes with a timescale of 10 microseconds. The close proximity the space and time poses great observation challenge for short-baseline (typically ≤100 m) radio interferometers. This paper reports simulations to show interferometry results would be obtained such an interferometer...

The spatiotemporal dynamics of Lyapunov vectors (LVs) in spatially extended chaotic systems is studied by means of coupled-map lattices. We determine intrinsic length scales and spatiotemporal correlations of LVs corresponding to the leading unstable directions by translating the problem to the language of scale-invariant growing surfaces. We find that the so-called characteristic LVs exhibit s...

In contrast to common angular naphthopyrans that exhibit photochromism and mechanochromism, isomeric linear are typically not photochromic. A polarizing dialkylamine substituent enables photochromic mechanochromic behavior in polymers containing a novel naphthopyran motif.