background: decalcified freeze-dried bone allograft (dfdba) may have the potential to enhance bone formation around dental implants. our aim in this study was the evaluation and comparison of two types of dfdba in treatment of dehiscence defects around euroteknika ® implants in dogs.     methods: in this prospective clinical trial animal study, all mandibular premolars of three iranian dogs wer...

objectives: the authors of this paper hypothesized that vibration stimulation applied by a vibratory orthosis improves balance in patients with parkinson’s disease (pd). in this study we evaluate this hypothesis. methods & materials: fourteen pd patients (12 male and 2 female) with mean age of 59.9±9.1 (±sd) years were participated in this cross- sectional study. using biodex balance system, th...

background and objectives: cold stress is one of the most important limiting factor for growth and development of grasses in temperate regions. freezing tolerance is highly different between plant species and between regions. the importance of grasses is due to widespread application in lawn beautifying, animal feeding, and erosion control. there are many differences between grass species in re...

soil salinity threat for agricultural ecosystems in many parts of iran, and negatively affects crop production. in order to examine salinity tolerance of kochia a series of experiments were conducted in crd with four replications, seven levels of salinity (0, 10, 20, 30, 40, 50 and 60 ds.m-1), two growth stages (planting and early seedling) and interval irrigation. result showed that decrease o...

in this paper, an approximate method is proposed for determining sway of multistory rc buildings subjected to various types of lateral loads. the calculation of both fundamental period and stability index in rc building requires the sway term at each story level. using approximate method design engineers can estimate sway terms at each story level. the developed analytical expressions are inser...

Microfiltration can clarify pomegranate juice; however, fouling is a limiting phenomenon in the process. In current work ultrasound was applied above and below the membrane surface to reduce fouling after removing temperature effect. A hydrophilic mixed cellulose ester membrane with pore size of 0.45 μm was used in lab scale flat sheet module. Membrane module was placed above and below the ultr...

Microfiltration can clarify pomegranate juice; however, fouling is a limiting phenomenon in the process. In current work ultrasound was applied above and below the membrane surface to reduce fouling after removing temperature effect. A hydrophilic mixed cellulose ester membrane with pore size of 0.45 μm was used in lab scale flat sheet module. Membrane module was placed above and below the ultr...

background: recently, there has been interest in non‑mammalian collagen sources such as fish collagen in the development of biomatrices and scaffolds for periodontal regeneration. in the present study, a novel collagen barrier membrane of fish origin was assessed in the treatment ofperiodontal intra‑bony defects. materials and methods: ten systemically healthy chronic periodontitis patients hav...