نتایج جستجو برای: west azarbaijan and alborz provinces experimental samples including soil samples from forest
تعداد نتایج: 17753427 فیلتر نتایج به سال:
abstract this study examines the effect of teaching lexical inferencing strategies on developing reading comprehension skill of iranian advanced efl learners. participants were female students of meraj and shokouh institudes of garmsar a quasi-experimental design using two intact advanced classes of efl students at meraj and shokouh institutes. as the first step, a general toefl proficiency te...
the members of anopheles maculipennis subgroup (diptera: culicidae) are the most important vectors of malaria in the north, west, and central plateau of iran. this study was carried out to differentiate the species composition of this subgroup based on morphometric variation seta 2-iv and v (antepalmate hair) among 149 larval specimens that were deposited at the medical arthropods museum, the s...
during 2 years, from march 1987 to april 1989, 600 samples of soil and plant were collected from different cities of northern provinces of iran. out of the six hundred samples 58 actinomycetes, 9 pseudallescheria boydii, 10 sporothrix schenckii, and 4 sporothrix schenckii-like fungi were isolated as the following: streptomyces griseus from 31 samples (38.27%), nocardia asteroides from 8 samples...
During 2001-2002, a total number of 164 soil-root samples were collected from citrus orchards of six provinces, namely, Fars, Gilan, Mazandaran, Kerman, Hormozgan and Sistan va Baloochestan. Soil samples were decanted and centrifuged and spores were collected and examined. Out of 23 identified species, five species were recognized new to Iran mycoflora. New species are as follows: Gomus albidum...
Rangeland soil is one of the important environmental components that is closely related to the vegetation. Therefore, the aim of this study was to investigate the effect of three types of woody plant species including Juniperus sabina (evergreen and crown attached to the ground), Berberis integerrima (deciduous and open crown) and Onobrychis cornuta (deciduous and cushion), on under the beneath...
The leafhopper fauna of northwestern Iran: Azarbaijan-e-Sharghi, Azarbaijan-e-Gharbi and Ardabil provinces is listed from previously published records and from our current work. Sixty-nine species are included with four species (Mogangellastraminea Dlabola, 1957, Doraturastylata (Boheman, 1847), Macrostelessordidipennis (Stål, 1858) and Psammotettixseriphidii Emeljanov, 1962) listed as new for ...
Bluetongue is an infectious disease that primarily affects sheep. But due to serious socioeconomic consequence of it outbreaks on the international trade it has been included in the OIE notifiable diseases (list A). During 2007-8, total number of 130 blood samples gathered from suspected sheep to bluetongue disease in seropositive region including Khuzestan, Kurdistan, Fars, Ilam and Qum prov...
Mycoplasma synoviae (MS) is a pathogen responsible for respiratory and locomotor disorders and causes major economic losses in poultry industry. Early and accurate diagnosis of MS infection plays a major role in control of the infection. This study was conducted to characterize Iranian field isolates of MS isolated from broiler chickens of West Azarbaijan province (Northwest of Iran), ...
We collected soil samples at 23 sites from the petroleum contaminated soils (PC) in the west of Kermanshah province to investigate the sources and ecological risk of polycyclic aromatic hydrocarbons (PAHs). In this study, source apportionment has been carried out using Positive Matrix Factorization (PMF).The total PAHs concentration, have a mean value of 92.79 mg/kg, ranging from 7.37 to 609.67...
introduction landfilling sites of wastes including big volume of waste. in recent years lack correct management caused that landfilling sites of municipal waste taken as one of main source pollution effluence at environmental. from between diverse contaminants heavy metals because of environmental stability, biogeochemical process, poison biology, sorption and desorption, redox potential, sedim...
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