in this paper, we study a coupled system of nonlinear fractional differential equations with multi-point boundary condi- tions. the differential operator is taken in the riemann-liouville sense. applying the schauder fixed-point theorem and the contrac- tion mapping principle, two existence results are obtained for the following system d^{alpha}_{0+}x(t)=fleft(t,y(t),d^{p}_{0+}y(t)right), t in (0,...

the genus tanacetum is one of the most important medicinal plants that contains 26 species in iran, 12 of them are endemic. this paper reports the essential oil composition of  tanacetum angulatum willd. tanacetum canacens dc. and tanacetum pinnatum boiss. growing wild in iran. plant flowers and leaves were collected from different locations of north- west of iran. samples were hydro-distilled ...

abstract background: primary cardiac lymphoma is extremely rare. case report: in this care report, we present the case of a 46-year-old man with primary cardiac lymphoma involving left atrium and interatrial septum, presenting as dyspnea palpitation and irregular heart beat. the diagnosis was obtained by transthoracic echocardiography and surgical biopsy with subxiphoid approach which revealed ...

there exists compelling evidence that toll-like receptor 3 (tlr3) agonists can directly affect human cancer cells. the aim of this study was to investigate anti-cancer effects of tlr3 agonist in human breast cell line. we assessed potential effects of poly (a:u) on human breast cell line (mda-mb-231)  on a dose-response and time-course  basis. human breast cell line  mda-mb-231  was treated wit...

abstract: introduction: asthma is a common disorder that affects children. only a limited number of studies have investigated the effect of asthma on dental caries. the purpose of this study was to determine the dental caries status in children with bronchial asthma. methods and materials: in this crossectional study, 75 asthmatic and 75 non asthmatic children who were matched according to age ...

background and purpose: medical records of patients have an undeniable role on education, research and evaluation of health care delivery, and also could be used as reliable documents of past in cases of patients’ legal complains. this study was done to evaluate medical data recording at teaching hospital of birjand university of medical sciences in 2004. methods: in this descriptive-analytic s...

zoanthamine-type alkaloids display a wide spectrum of biological effects. this study aimed to examine the inhibitory effects of norzoanthamine and its ten homologues of zoanthamine class on human fibroblast collagenase by modeling a three-dimensional structure of the ligands at collagenase using energy minimization, docking, molecular dynamics simulation and mm-pb/gbsa binding free energy calcu...

cadmium is a heavy metal with a strong adverse effect on crop quality. moreover, it is a mobile element in environment and plants can easily uptake and transfer it to their organs. cadmium can easily enter human and animals food chains and threatens their health. to study the effects of a water soluble polymer and inoculation with mycorrhizal fungi on cadmium uptake of clover grown on contamina...