begin{abstract} the relations between the spectrum of the matrix $q+r$ and the spectra of the matrices $(gamma + delta)q+(alpha + beta)r-qr-rq$, $qr-rq$, $alpha beta r-qrq$, $alpha rqr-(qr)^{2}$, and $beta r-qr$ have been given on condition that the matrix $q+r$ is diagonalizable, where $q$, $r$ are ${alpha, beta}$-quadratic matrix and ${gamma, delta}$-quadratic matrix, respectively, of order $...

this study aims at testing the degree of stability for beta coefficient across time, depending on the information available from tehran bourse. where beta coefficient was calculated using the market model developed by sharp on 1963, which applies by performing a simple linear regression between the company’s and the market returns, where beta coefficient is the slope of this regression. in this...

Background and Objective: Beta-2 Microglobulin (β2M) is a middle molecular weight uremic toxin. Lack of β2M removal leads to β2M accumulation and amyloidosis in hemodialysis patients. The present research aims to determine the relationship between β2M and inflammatory factors, such as C-reactive protein (CRP), albumin, and high-density lipoprotein (HDL) in hemodialysis patie...

beta-thalassemia major (β-tm) is a chronic, genetic and hematological disorder. children and teenagers with chronic physical illnesses exemplified by thalassemia are vulnerable to emotional and behavioral problems. the aim of this study was to evaluate mental health and its related factors among young patients with beta-thalassemia major.in this cross-sectional observational descriptive-analyti...

Recall that a continuous function $fcolon Xto Y$ between Tychonoff spaces is proper if and only if the Stone extension $f^{beta}colon beta Xtobeta Y$ takes remainder to remainder, in the sense that $f^{beta}[beta X-X]subseteq beta Y-Y$. We introduce the notion of ``taking remainder to remainder" to frames, and, using it, we define a frame homomorphism $hcolon Lto M$ to be $beta$-proper, $lambd...

background: thalassemia represents a serious health problem in iran because of its heterogeneous frequency and the existing endogamy system. it is an inherited blood disease characterized by the under production of normal hemoglobin, the oxygen-carrying protein in red blood cells. materials and methods: in this study, serum antioxidants including selenium (se), zinc (zn) and copper (cu) were me...

background beta-thalassemia patients receive blood products from blood transfusion centers repeatedly. blood transfusion can transmit cytomegalovirus (cmv) and toxoplasma gondii. the aim of this study was serological evaluation of these two infectious agents in thalassemia patients. materials and methods in a cross-sectional study, the enzymelinked immunosorbent assay (elisa) testing was perfor...

Let $(X, \tau)$ and $(Y, \sigma)$ be topological spaces in which no separation axioms are assumed, unless explicitly stated if $\mathcal{I}$ is an ideal on $X$.Given a multifunction $F\colon (X, \tau)\rightarrow (Y, \sigma)$, $\alpha,\beta$ operators \tau)$, $\theta,\delta$ proper $X$. We introduce study upper lower $(\alpha, \beta,\theta,\delta,\mathcal{I})$-continuous multifunctions.A said to...