the non commuting graph of a non-abelian finite group $g$ is defined as follows: its vertex set is $g-z(g)$ and two distinct vertices $x$ and $y$ are joined by an edge if and only if the commutator of $x$ and $y$ is not the identity. in this paper we prove some new results about this graph. in particular we will give a new proof of theorem 3.24 of [2]. we also prove that if $g_1$, $g_2$, ..., $...

introduction: impaction of third molars can be associated with a number of sequelae, each requiring a different type of treatment. the purpose of this study was to assess the changes in the position of lower third molars following extraction and non-extraction orthodontic treatments. methods: pre- and post-treatment panoramic radiographs of 26 class i malocclusion patients (4 male and 22 female...

let $l$ be a lattice in $zz^n$ of dimension $m$. we prove that there exist integer constants $d$ and $m$ which are basis-independent such that the total degree of any graver element of $l$ is not greater than $m(n-m+1)md$. the case $m=1$ occurs precisely when $l$ is saturated, and in this case the bound is a reformulation of a well-known bound given by several authors. as a corollary, we show t...

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conclusions according to the results, the iranian public health centers preparedness against disasters before, during and after accidents were in safety level 4 from 10, which was undesirable. results risk rate, functional, non-structural and structural preparedness and final safety level were 58.62%, 51.48%, 54.82%, 33.97%, and 43.72%, respectively. background ahvaz metropolitan as an industri...

aims: the backbone of treatment in advanced non-small cell lung cancer is platinum-based doublet chemotherapy. we intended to compare the effectiveness of two commonly used regimens in real world practice. methods: this single institute, parallel comparative post marketing study included 100 patients with chemo-naïve advanced (stage iiib, iv) non-small cell lung cancer and eastern cooperative o...

introduction: advances in medical and health sciences have led to increase in the number of older people. the most common non- communicable diseases can be prevented by following a healthy lifestyle. this study aimed to investigate the lifestyle of elderly people by reviewing the literatures and background of the previous researches in order to obtain a holistic view about lifestyle. methods: a...

noncompaction of the ventricular myocardium is an embryonic cardiomyopathy that is increasingly being recognized. noncompaction of lv myocardium, right ventricular myocardium, or both can occur in isolation, in congenital heart diseases, in valvular heart diseases, in neuromuscular disorders, skeletal abnormalities and in endocrinologic abnormalities. clinical manifestations of ventricular non-...

background: this study was conducted to collect informative data on the parasitic infection of wild rodents, emphasizing on finding parasites, which have medical importance to human. methods:   during 2012-2014, a total number of 91 wild rodents were captured from rural areas of turkmen sahra, golestan province, using handmade traps. animals were anesthetized, surveyed for any ectoparasite and ...