the present study investigated comparatively the impact of two types of input enhancement (i.e. textual vs. compound enhancement) on developing grammar ability in iranian efl setting. sixty-five female secondary high school students were selected as a homogenous sample out of about a 100-member population based on nelson language proficiency test. then, their grammar ability was measured based ...

the study of flow in compound channels with vegetated floodplains is essential to assessing the development of the stage-discharge relationship and sediment and pollutant transport. the present study experimentally investigated mean flow and turbulence characteristics in a prismatic compound channel. the experimental program consisted of vegetated and non-vegetated floodplains with different re...

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Introduced dreissenid mussels (Dreissena polyrnorphda and Dreissena bugensis) foul native unionid bivalves by attaching to their shells in large clusters and may critically impair many North American unionids that are already threatened by habitat degradation. Using literature and new field data, we examined patterns of Dreissena infestation on unionids, and the relationships between Dreissena ...

background: around one out of two mothers give births by cesarean section (cs) surgery in iran and about half of this number is due to previous cs. recently health sector evolution (hsep) program (started in april 2014) targets the high rate of cs in iran. to assess the impact of the interventions, we emphasized that the first birth cesarean (fbc) proportion is one of the main indicators to ass...

abstract: objective(s): in recent years, the chemistry of 2-chloroquinoline-3-carbaldehydes have received considerable attention owing to their synthetic and effective biological importance which exhibits a wide variety of biological activity, n1,n4-bis((2-chloroquinolin-3-yl)methylene)benzene-1,4-diamine derivatives that synthesized from 2-chloroquinoline-3-carbaldehydes may have biological ef...

the aim of this study was to extract phenolic compounds from olive leaves of cronaiky, roghani and mishen varieties by maceration and microwave-assisted extraction (mae) methods. our result revealed that effect of extraction method and variety was statistically significant (p<0.05) and mae-produced extracts have more total phenolics and antioxidant activity than traditional ones. the highest ph...

achillea tenuifolia lam (asteraceae) afforded a methanolic extract from which after fractionation in solvents with different polarities two known flavones 3’, 5- dihydroxy- 4’, 6, 7- trimethoxy flavone (eupatorine, compound 3), 5- hydroxy- 3’, 4’, 6, 7- tetramethoxyflavone (compound 4), besides stearic acid (compound 1 ), lupeol (compound 2), daucosterol (β- sitosterol 3-o- β- d- glucopyranosid...

Currently, we are experiencing an epidemic of essential hypertension characterized by increasing rates of obesity, the metabolic syndrome, and type 2 diabetes. Essential hypertension affects nearly 20% of the population across the global. The consequences of hypertension include coronary artery disease, stroke, heart failure and chronic kidney disease. Recently, the assessment and management of...