the ecological potential assessment of forest sites introduces an index or indices that show the potential of forest site for fulfillment of special different roles of forest. khanikan forest at chalous needs precise investigation for assessment as indicator of lowland forests in forest ecosystems of northern iranwith considering its location position in caspian lowland and different values. th...

background: this study was performed to evaluate periodontal status in patients with cardiovascular disease (cvd) and assessment of periodontal diseases prevalence in these patients. materials and methods: in this cross-sectional study, data on 100 patients were collected with mean age of 51 ± 11 years. the case group included of 50 patients with confirmed cvd who referred to ali-ibn abi talib ...

the critical role and effect of teacher assessment in elt has been ratified by researchers among whom are darling-hammond (2000); knox (2002); bailey (2006); davison & cummins (2007); and blum (2009).taking this issue into account, this exploratory study seeks to investigate the underlying criteria of both recruiting and assessing in-service efl teachers in private language institutes of ir...

background: groundwater nitrate pollution is an important environmental problem in water resources management. in this regard, specific measures aiming at prevention of water pollution will be helpful to managers and decision-makers. identification of aquifers’ vulnerable areas and determination of groundwater protection zones using most widely used models, such as drastic and cd, are one of th...

Abstract Spur dikes are river training structures that have been extensively used worldwide for towards enhancing flood control and the stability of embankments riverbanks. However, scour around spur can be a major problem affecting their hydraulic performance. The precise computation temporal depth at is very important design economical safe dikes. This study focuses on experimentally assessin...

the present study clarifies the difference between orthographic words and their phonological correspondents in persian writing system via computing orthographic depth of persian writing system. in this article, first, the relationship between orthographic forms of the words and their phonological correspondents is formalized by using context free and context sensitive grapheme-phoneme rules. th...

Downfall flows from different outlet hydraulic structures such as culverts and jetsthrowingtothe erodible downstream bed cause scour hole and changes in the downstream bed topography. Therefore,by performing some physical modeling tests on culvert jet flow under different angles, changes in the downstream bed topography under the effect of different parameters such as flow rate, depth of the ta...