the present study was conducted to evaluate the effect of ascorbic acid (asa) as an important antioxidant in alleviation of salt damage in oregano (origanum majorana l.). this research work was carried out at the research greenhouse of ferdowsi university of mashhad. foliar application of asa (0, 100, 200 mg/l) was carried out on the plants that were under salt stresses of 0, 50, 100 and 150 mm...

The present study chiefly aimed to compare two forms of dynamic assessment and standard assessment of EFL learners’ listening comprehension. 59 Iranian EFL learners were randomly assigned to three test administration groups and assessed on listening for main and supporting information in listening tasks. The first model of dynamic assessment was a form of scaffolding in which for any incorrect ...

creep phenomenon in rock engineering plays a key role in development of underground spaces as they must be stable enough for a long period of time. current research involved designing and manufacturing of a new creep testing machine. the equipment is capable to perform simultaneous light-duty creep tests on more than one cylindrical rock samples at a very low cost.to evaluate the equipment’s pe...

The aim of the present study was to evaluate the role of endothelium-derived factors (NO and ET) in the development of the salt-sensitive hypertension and to assess possible interaction between these substances. A total of 52 patients with mild arterial hypertension were studied. Patients were divided in two groups (salt-sensitive and salt-resistant groups) in accordance with the type of their ...

Salinity is a major limiting factor for plant growth and development. To evaluate the impact of P5CS gene expression under in vitro salt stress condition, transgenic tobacco (Nicotiana plumbaginifolia) carrying P5CS gene and non-transgenic plants were treated with 0, 100, 150, 200 or 250 mM NaCl for 28 days. Proline content, lipid peroxidation and the activity of some antioxidant enzymes after ...