to study the effect of different harvesting intensity on forage production of bromus tomentellus was considered of majid abad qorveh. treatments included four harvested intensity 25, 50 and 75 percent and control (no harvest).data were analyzed based on splitplot over time during four years(1386-1389) using sas and irristat software. the results showed that the main effect of year, different ha...

background: benign paroxysmal positional vertigo (bppv) is linked to vitamin d deficiency. this clinical trial aimed to determine the influence of vitamin d supplementation on intensity of bppv. methods: the study population was selected consecutively and the diagnosis of bppv was made by history and clinical examination and exclusion of other conditions. intensity of bpvv was assessed based on...

introduction: we investigated the characteristic of a suitable irradiation on skin's tensional strength using design of experiments (doe). the experiments in this research are designed in two phases and data envelopment analysis (dea) is used for performance measurement of each phase. material and methods: samples were provided from pleura as surface tissue made of collagen and elastin fib...

background: the aim of this study was to investigate the effects of high-intensity interval training (hiit) on nitric oxide metabolites (no2 - , no3 - ) and myocardial infarct size after ischemia/reperfusion (i/r) injury in healthy male rats. methods: a total of 44 wistar rats were randomly divided into 4 groups including hiit (n=8), hiit + ir protocol (n=14), control (n=8), and control + ir (n...

black tea sample was dried by a vibro-fluidized bed dryer to find its aerodynamic behavior and thermal performance during drying. the drying experiments were conducted at three different inlet air temperatures of 100, 115 and 130°c and fluidization condition at five vibration intensity levels of 0 (no vibration), 0.063, 0.189, 0.395 and 1.184. the results showed that bed channeling and defluidi...

this paper proposes a method to solve multi-objective problems using improved particle swarm optimization. we propose leader particles which guide other particles inside the problem domain. two techniques are suggested for selection and deletion of such particles to improve the optimal solutions. the first one is based on the mean of the m optimal particles and the second one is based on appoin...

the contents of as, cd, cu and mo were determined in soil surrounding meyduk tailings dam based on 21 surface soil samples. assessment of toxic element pollution in studied soil samples needs knowledge of pre-anthropogenic metal concentration to act as a reference against which measured values could be compared. estimating the background values was executed by sampling rocks adjacent to soil sa...

background & aim: pain is a major problem after burn injury. therapeutic practices do not provide suffi-cient pain relief for patients with burn. therefore, non-pharmacological interventions such as muscle relaxa-tion and mental imagery can be effective in reducing pain. this study aimed to compare the effects of mus-cle relaxation and mental imagery techniques on pain intensity in patients wit...

introduction contrast-enhanced fluid-attenuated inversion recovery (flair) is one of the mri sequences that can be used for detection and evaluation of pathological changes in the brain. in this work, we have studied the effect of different echo times (te) on the maximum relationship between signal intensity and concentration of the contrast agent using the flair sequence. materials and methods...

multi drug resistance(mdr) is a major problem in the treatment of cancer and hemalological malignancies. this resistance is multi factorial and is the result of decreased intra cellular drug accumulation. this is partly due to the presence of a 170kd intra membranous protein termed p-glycoprotein(p-gp) that is an energy-dependent efflux pump which has increased expression on drug-resistance cel...