background: drug nano-carriers are one of the most important tools for targeted cancer therapy so that undesired side effects of chemotherapy drugs are minimized. in this area, the use of ultrasound can be helpful in controlling drug release from nanoparticles to achieve higher treatment efficiency. objective: here, we studies the effects of ultrasound irradiation on the release profile of 5-fl...

at the beginning of this paper, design and manufacturing stages of the 3 degree of freedom test stand for a remotely piloted helicopter is described, in which the helicopter is able to rotate about its three primary accesses. in the next parts the dynamical model of the rph in the yaw channel is presented and lateral transfer function of rph (yaw channel) is extracted by performing several test...

background: a lot of women die each because of unwanted pregnancies and unsafe abortion. according to importance of unwanted pregnancies, the purpose of the current study is to determine prevalence of unwanted pregnancy and its related factors in interruption method users in gorgan health-care centers in 2010. methods: in this descriptive-analytical study, 339 eligible women that were under sup...

the effect of gibberellic acid (ga3) spraying on some characteristics of cyclamen flowering trend during the second flowering year was investigated. ga3 sprays were applied in concentrations of 0, 20, 30, 40, and 50 mg/l. the trial was carried out as a randomized complete design of three replications. the total flower count, flower count during the flowering peak, days from spraying to flowerin...

1- introduction this research attempts to investigate the effects of forensically-relevant facial concealment on voiceless fricatives /f, s, ʃ/ in farsi. there are various types of face-concealing garments that are commonly worn by people for the occupational, recreational, religious, and cultural purposes .these coverings may be typically used as disguises during the commission of crime by del...

normal 0 false false false en-us x-none ar-sa background: steroids are commonly used in the treatment of cervical radiculopathy (cr), but there is limited information in this regard. we evaluated the efficacy of oral prednisone in the treatment of cr. materials and methods: this randomized, double-blinded, placebo-controlled trial was conducted on adult patients with neck/shoulder pain for at l...

in order to evaluate the effects of different levels of potassium and nitrogen on nitrogen use efficiency (nue) and yield of rapeseed (hyola 401), a field experiment was conducted at rice research institute of iran (rasht) in a factorial experiment based on a complete randomized block design with 3 replications for two years (2008-2010). the first factor was pure potassium fertilizer in three l...

conclusions this study indicated that the optimization of gene transfer increases the expression of igf-1. high concentrations of igf-1, in combination with cell therapy, have a significant effect on wound healing. results in vitro, the maximum expression of igf1 (96.95 pg/ml) in transfected fibroblast cells was 24 hours after gene transfer. in vivo, it was clear that igf-1 gene therapy caused ...

the effect of fiber surface modification on physical and mechanical properties of kraft pulp wasstudied with and without chitosan. first, the amount of carboxyl groups of kraft pulp at differentaddition levels (0, 2, 3, 4 and 6%) of hydrogen peroxide was determined by means of methylene bluetest. then, the samples containing the highest carboxyl groups were treated at ph=8.5 with chitosan at0.7...

normal 0 false false false en-us x-none ar-sa background: alzheimer's disease (ad) is a progressive neurodegenerative disease in which endothelial cell (ec) can be affected. in brain, functional changes in ecs contribute to reductions in resting blood flow. furthermore, angiotensin-converting enzyme inhibitors (ace-i) have beneficial effects on endothelial dysfunction. this is the first study t...