s i n c e t h e l a t e 1960s, s e v e r a l c o n s t i t u t i v e m o d e l s h a v e b e e n d e v e l o p e d f o r s a n d s d e s c r i b i n g t h e i r s t r e s s-s t r a i n e h a v i o r. m o s t o f t h e s e m o d e l s w e r e e s t a b l i s h e d b a s e d o n a m e a s u r e o f t h e p l a s t i c w o r k a n d s o m e y i e l d c r i t e r i a, a m o n g t h e m b e i n g t ...

the a f f i x e s i n a l a n g u a g u e are a masive w e b o f morfolexical elements formed b y t w o bases ; t h e root and t h e bound . t h e combination o f these t w o link the meaning o f a w o rd with a concept . t h e a i m o f t h e present paper i s t o study t h e similitud and dissimilitude i n t h e funtion o f these suffixes i n b o t h spanish a n d persian languages . we will ...

normal 0 false false false en-us x-none ar-sa background: in some studies, the level of adenosine deaminase ( ada) in sputum and effusion liquids was used for the diagnosis of tuberculosis (tb). but it is not always possible to access these materials. the goal of this study is to assess the diagnostic value of serum ada levels in pulmonary tb patients. materials and methods: in this study, 40 s...

in this work, zncao2 (zinc oxide-calcium oxide) nanocomposite were synthesized at different temperatures (500-700°c) by sol-gel method based on polymeric network of polyvinyl alcohol (pva). the synthesized samples were characterized by sem/edax, ft-ir and xrd techniques. it was found that synthesized nanocomposites have 1.62, 2.05 and 13.91%wt of cao, respectively. the obtained results show tha...

normal 0 false false false en-us x-none ar-sa introduction: hepatitis b is one of the world's health problems and increased the risk of hepatocellular carcinoma and liver cirrhosis. medical students exposed to risk because of future job, and being infected than the general population. this study will survey level of knowledge, risk perception and behavioral intention medical students about hepa...

this study presents an empirical relationship of suspended sediment concentrations (sscs) inthe coastal waters, which is derived from the conventional methods, to radiometer remote sensing reflectance values (rrs) and satellite data in coastal waters of kerala. an algorithm is then developed to utilize both in situ sscs measured from conventional methods and rrs values. this algorithm is valida...

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...

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...