نتایج جستجو برای: spectrum preserver

تعداد نتایج: 223881  

Journal: :international journal of pediatrics 0
javad baharara department of developmental biology, animal developmental of applied biology research center, mashhad branch, islamic azad university, mashhad, iran. maryam hojjati head of noor hedayat, center of autism spectrum disorders, mashhad, iran. hashem rasti phd student of developmental biology, young researchers and elite club, mashhad branch, islamic azad university, mashhad, iran. malihe sarabi jamab noor hedayat, center of autism spectrum disorders, mashhad, iran

introduction emerging hypotheses suggest a causal role for prenatal androgen exposure in some cases of autism spectrum disorders (asd). the ratios of the lengths of the bones of the 2nd to the 4th digits (2d:4d) are purported to be markers for prenatal androgen exposure and to be established early in gestation. ratio of second and fourth digits (2d:4d)  is usually used as a proxy for prenatal t...

Journal: :international journal of bio-inorganic hybrid nanomaterials 0

molybdenum thin films with 50 and 150 nm thicknesses were deposited on silicon substrates, using dc magnetron sputtering system, then post-annealed at different temperatures (200, 325, 450, 575 and 700°c) with flow oxygen at 200 sccm (standard cubic centimeter per minute). the crystallographic structure of the films was obtained by means of x-ray diffraction (xrd) analysis. an atomic force micr...

Journal: :journal of advances in computer research 0

this study evaluates the discriminative power of sequential spectrum analysis of the short-term electrocardiogram (ecg) time series in separating normal and subjects with life threatening arrhythmias like, ventricular tachycardia/fibrillation (vt/vf). the raw ecg time series is transformed into a series of binary symbols and the binary occupancy or relative distribution of mono-sequences (i.e. ...

Journal: :iranian journal of fuzzy systems 0
r. ameri school of mathematics, statistics and computer science, college of sciences, university of tehran, teheran, iran r. mahjoob department of mathematics, semnan university, semnan, iran

let $r$ be a commutative ring with identity and $m$ be an$r$-module. let $fspec(m)$ denotes the collection of all prime fuzzysubmodules of $m$. in this regards some basic properties of zariskitopology on $fspec(m)$ are investigated. in particular, we provesome equivalent conditions for irreducible subsets of thistopological space and it is shown under certain conditions$fspec(m)$ is a $t_0-$spa...

Journal: :iranian journal of psychiatry 0
maryam salmanian tehran university of medical sciences, psychiatry and psychology research center; tehran, iran ; institute for cognitive science studies; tehran, iran. mehdi tehrani-doost maria ghanbari-motlagh zahra shahrivar

visual memory is an important cognitive ability, which has been studied in individuals with autism spectrum disorders (asds). in such studies meaningful shapes were used more frequently. since meaningless shapes provide a better assessment of short term visual memory, in this study we used them to evaluate visual memory in children and adolescents with asds compared to the normal group.four vis...

ژورنال: مهندسی دریا 2016

The most of wave spectrum analyzes in Persian Gulf were based on the existing field measurements, but the precision and applicability of the determined spectrum parameters were dependent on number of field wave stations, duration of field data and the spatial distribution of field wave stations. In this research, it is attempted to re-analysis again the wave spectrum parameters presented by pre...

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Abstract Purpose: Autism Spectrum Disorder (ASD( identified via deficit of social communication, stereotyped movements and limited interactions. Postural instability is common in children with autism spectrum disorder. The purpose of this study is the effects of 8 weeks core stability training on trunk endurance in boys with autism spectrum disorder. Methods: The research subjects include ...

Let R be a commutative hyperring with identity. We introduceand study prime fuzzy hyperideals of R. We investigate the Zariski topologyon FHspec(R), the spectrum of prime fuzzy hyperideals of R.

Journal: :bulletin of the iranian mathematical society 2015
a. abdollahi s. mehrangiz t. roientan

let $varphi(z)=z^m, z in mathbb{u}$, for some positive integer $m$, and $c_varphi$ be the composition operator on the bergman space $mathcal{a}^2$ induced by $varphi$. in this article, we completely determine the point spectrum, spectrum, essential spectrum, and essential norm of the operators $c^*_varphi c_varphi, c_varphi c^*_varphi$ as well as self-commutator and anti-self-commutators of $c_...

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