introduction: the aim of this study was to compare the effect of post space preparation with gates glidden drills or hand files on the sealing ability of gutta-percha or resilon obturation materials. materials and methods: one-hundred and four single-rooted human teeth were instrumented and divided into four experimental groups (n=21 each) and two groups of positive and negative control (n=10)....

conclusions in hemodynamically stable patients with a ruptured raml, early detection by ct followed by selective arterial embolization may be lifesaving. introduction renal angiomyolipoma (raml), is a rare, benign tumor arising from renal mesenchymal cells. frequently, it is asymptomatic and found incidentally. spontaneous rupture with consequent retroperitoneal hemorrhage is an uncommon but ca...

conclusion high-resolution mr images of the wrist using 3d t2space, pd blade and t2 blade were superior to those using conventional sequences quantitatively. high-snr and cnr mr imaging with space and blade would be a promising method to diagnose wrist lesions. results snr of the cartilage, tfcc on 3d t2space and t1 fse was better than other sequences (p < 0.001). snr of the bone on pd blade wa...

in this paper we introduce new modified implicit and explicit algorithms and prove strong convergence of the two algorithms to a common fixed point of a family of uniformly asymptotically regularasymptotically nonexpansive mappings in a real reflexive banach space with a uniformly g$hat{a}$teaux differentiable norm. our result is applicable in $l_{p}(ell_{p})$ spaces,$1 < p

the concepts of democracy have been around for centuries in different fields of human sciences. however, in most of these fields the idealistic and far-fetched features attributed to democracy have not been manipulated yet. it should be mentioned that there have been only a few serious attempts to find proper go-between elements, which could make such a concept as comprehensible and tangible as...

the purpose of this qualitative study is to explore the perception of managers and talents of perceived retention factors in the textile industry in yazd province, iran. in this regard, phenomenography is used to map the different perceptions of both talents and their managers. data were collected through semi-structured interviews with 22 talented individuals who were selected according to an ...

abstract during 2008-2009 species composition of injurious mites associated with common broad leaf trees and ornamental shrubs in green spaces of mashhad region was surveyed. as result, 13 mite species belonging to 10 genera and 3 families, eriophyidae, tetranychidae and tenuipalpidae were collected and identified. in bellow list, the new records for razavi khorasan and iran are indicated with ...

the following study aims to present an innovative approach for design. participatory design is the model of direct involvement of different social groups in the design from functional tools to environments, social institutions and businesses. diverse collection of practices has been developed to support this direct involvement by participatory design. people are invited to participate during di...

in  this paper, we investigate the generalizedhyers-ulam-rassias stability for the quartic, cubic and additivefunctional equation$$f(x+ky)+f(x-ky)=k^2f(x+y)+k^2f(x-y)+(k^2-1)[k^2f(y)+k^2f(-y)-2f(x)]$$ ($k in mathbb{z}-{0,pm1}$) in $p-$banach spaces.

we give some sufficient conditions under which the tuple of the adjoint of weighted composition operators $(c_{omega_1,varphi_1}^*‎ , ‎c_{omega_2,varphi_2}^*)$ on the hilbert space $mathcal{h}$ of analytic functions is supercyclic‎.