abstract statistical methods are one of the useful tools for climatic elements and their behaviors analysis, as well as, modeling and predicting them subtly. in this paper the behavior of time series of annual temperature of zanjan during 1956-2005 have been studied. so, based on autocorrelation, correlation coefficient, and spearman and mann - kendall ways, the data trend was determined. the a...

plant growth promoting rhizobacteria and arbuscular mycorrhizal fungi can inhanced plant growth by increasing nutrient uptake. in order to investigate the effect of pgpr and amf on some morphological parameters, macro (nitrogen, phosphorus, potassium, calcium and magnesium) and micro (iron, zinc and copper) nutrients uptake, percentage of root colonization and some morphological factors of pepp...

in this study, aluminosilicate mcm-41 has been found to be an efficient catalyst for reaction betweendifferent benzaldehyde derivatives and 5,5-dimethyl-1,3-cyclohexanedione to give open chain analogue of1,8-dioxo-octahydroxanthene in excellent yields. no evidence for the formation of cyclization products wasobserved. the catalyst can be used several times after recovery.

normal 0 false false false en-us x-none ar-sa background: stroke is one of the most common causes of disabilities and death all over the world. the mortality rate of stroke is predicted to be doubled by 2030 in the middle east countries. nutrition is an effective strategy in prevention and management of stroke. this study assessed the relationship between various protein types and stroke risk. ...

background: leukemia is a malignant proliferative disorder of the hematopoietic cells. the important role of angiogenesis in leukemia has been reported by several studies. matrix metalloproteinases (mmps) are a large group of endopeptidases which degredate the extracellular matrix and play an important role in angiogenesis. objective: the present study was conducted to evaluate the patterns of ...

conclusions the mir-155 appeared to be suppressed during hbv infection. the significantly higher mir-155 levels in alt-elevated patients infected with hbv suggest that mir-155 levels in pbmcs correlate with the immune state of patients with chronic hbv infection. results in the hbv-infected patients, the mir-155 levels were significantly lower than in the healthy controls (p = 0.001). chronic h...

aim : this study evaluated the association between serum endothelin- 1 level and symptoms, clinical examination, laboratory and cardio-respiratory parameters, in patients with cirrhosis compared to controls. background : cirrhosis is associated with significant portal, pulmonary and systemic vascular abnormities. recent studies have suggested that endothelin -1 may have a significant role in th...

a completely randomized design (crd) with three replications was conducted at greenhouse of urmia university in 2013 to study the effect of different methyl jasmonate concentrations (0, 0.1 and 0.5 mm) on the activity of enzymes polyphenol oxidase, phenylalanine ammonia lyase, catalase, ascorbate peroxidase, guaiacol peroxidase and total protein content in basil. activity of the enzymes and tot...

for designing tillage implements it would be better to estimate soil forces exerted to the implements. many researches showed that numerical method of discrete element method (dem) is the cheapest and fastest technique for modeling granular material such as soil and especially sandy soil. in this study, paraplow and bentleg tines performance was compared with conventional tine using experimenta...