abstract the present study aims to evaluate efl course contents used in language schools and institutes in teh-ran. to that end, 230 participants in tehran were conveniently sampled. at the outset of the study, two questionnaires were given to all groups, and according to their responses, the data were analyzed. each of the questionnaires was given to participants individually. each group had...

walter benjamin proposes that a work of art does not belong to a specific time; rather it is transient. a work of art has a 'temporal effect' which is considered as the 'context' of the work in which it has been written. the 'context' cannot be reconstructed to be the same as what once existed;it is constructed.translator's job is to recreate the life of the original work from one language to a...

six different composite packaging materials were tested with the trades’ practice of polythene bags in storing smoked catfish for a period of six months. the thickness of the packaging materials ranges from 0.23 to 046 mm with water and oil absorption rates of the packaging materials varies from 0.23 to 10.00 and 0.28 to 10.857 glcm2/mm respectively. the impact resistance weight also varies fro...

abstract       background and aim: dimensional changes of the impression materials after disinfection is a serious problem in dentistry which could fail the treatment. the aim of this study is to determine the effect of three disinfectants:2% deconex,5.25% sodium hypochlorite and nanosil d2 ,on dimensional changes of bayer alginate.       materials and methods: this experimental study was condu...

lini0.5co0.5vo4 has been successfully synthesized by tartate precursor combustion method using li2co3, co(no3)2.6h2o, ni(no3)2.6h2o and nh4vo3 as a starting materials in deionized water with the subsequent calcination at 450-600 oc for 12 h. the combustion and decomposition of tartate precursor were studied by tga and compared with tartaric acid. it found weight loss at 50-450 oc. the product s...

even though intervertebral disc degeneration can be found in the natural course of alkaptonuria, detection of the disease by black disc color change in a patient without any other presentation of alkaptonuria is an exceptionally rare condition. we have reported a very rare case of alkaptonuria presented with low back pain and steppage gait in a 51-year-old male with a complaint of chronic low-b...

introduction: osteoblasts and periodontal ligament cells are major cells for wound healing after root end resection. the interaction of osteoblasts with filling materials could play a critical role in healing of surgical lesion. adhesion and spreading of cells on material surface are the initial phase for cellular function. the purpose of the present study was the evaluation of morphology and a...

In this paper, nonlinear vibration analysis of functionally graded piezoelectric (FGP) beam with porosities material is investigated based on the Timoshenko beam theory. Material properties of FG porous beam are described according to the rule of mixture which modified to approximate material properties with porosity phases. The Ritz method is used to obtain the governing equation which is then...