نتایج جستجو برای: nena region

تعداد نتایج: 538043  

Journal: :iranian journal of toxicology 0
علی کاظمی ali kazemi department of environmental science, tarbiat modares university, noor, mazandaran, iran. حبیب اله یونسی habibollah younesi department of environmental science, tarbiat modares university, noor, mazandaran, iran. نادر بهرامی فر nader bahramifar department of chemistry, payame noor university, sari, iran.

background: the municipal solid wastes (msws) are disposed in open dumps, which have no leachate collection and removal system, in the caspian region of iran. leachate readily reaches the nearby water resources such as streams, rivers, lakes, and sea. therefore, understanding the quality and quantity of open dump leachate is vital to the proper treatment of leachate. methods: the leachate sampl...

Journal: :iranian journal of medical physics 0
somayeh nourollahi m.sc.in medical physics, faculty of medicine, tehran university of medical sciences, tehran, iran mahmoud allahverdi associate professor, medical physics dept., faculty of medicine, tehran university of medical sciences, tehran, iran mahbod esfahani m.sc.in medical physics, radiotherapy dept., cancer institute, tehran university of medical sciences, tehran, iran mehdi aghili assistant professor, radiotherapy dept., cancer institute, tehran university of medical sciences, tehran, iran vahid changizi assistant professor, radiology technology dept., faculty of allied medical sciences, tehran university of medical sciences, tehran, iran

introduction: the complex geometry of breast and also lung and heart inhomogeneities near the planning target volume (ptv) result in perturbations in dose distribution. this problem can result in overdosage or underdosage in the match region of the three treatment fields. the purpose of this study is to create a homogeneous dose distribution in the match region between the supraclavicular and t...

Journal: :acta medica iranica 0
kesici ugur department of general surgery, ministry of health, akcaabat hackali baba state hospital, trabzon, turkey. mataraci emine department of pathology, ministry of health, akcaabat hackali baba state hospital, trabzon, turkey. kesici sevgi department of anaesthesiology and reanimation, ministry of health, kanuni training and research hospital, trabzon, turkey. zeren sezgin department of general surgery,ministry of health, numune hospital, sivas, turkey.

granular cell tumor (gct) was first described by abrikossoff in 1926. gct is a rarely seen soft tissue tumor and is generally benign. while the tumor can be seen in all parts of the body it is generally located on the head and neck region, and especially on the tongue. gct is rarely seen in the anal-perianal region. in accordance with literature this case was reported because it was thought to ...

Journal: :journal of the structural engineering and geotechnics 0
ali delnavaz department of civil and surveying engineering, qazvin branch, islamic azad university, qazvin, iran mohammad ali habibzadeh department of civil and surveying engineering, qazvin branch, islamic azad university, qazvin, iran ali hajsayedtaghiya department of civil and surveying engineering, qazvin branch, islamic azad university, qazvin, iran

time-history analysis is defined as a kind of dynamic analysis increasingly used in design of structures and evaluation of existing ones. one of the important issues in the time-history analysis is selecting earthquake records. in this case, seismic design provisions states that time histories shall have similar source mechanisms, geological and seismological features with region under study. a...

Journal: :مجله علوم اعصاب شفای خاتم 0
shahrokh nasseri medical physics department, mashhad university of medical sciences, mashhad, iran mehdi momennezhad a. medical physics department, mashhad university of medical sciences, mashhad, iran b. nuclear medicine research center, mashhad university of medical sciences, mashhad, iran hossein akbari-lalimi medical physics department, mashhad university of medical sciences, mashhad, iran

introduction: voxel based morphometry is a type of statistical parametric mapping that can be used to investigate the effect of diseases such as epilepsy, alzheimer's disease and parkinson's disease or other agent such as skills on brain structure (white matter, gray matter and cerebrospinal fluid). the aim of this study is evaluate the effectiveness of this method in detection of dif...

Journal: :iranian journal of ichthyology 0
hamid reza esmaeili department of biology, college of sciences, shiraz university, shiraz, iran. brian w coad canadian museum of nature, ottawa, ontario, k1p 6p4 canada. hamid reza mehraban ichthyology research laboratory, department of biology, college of sciences, shiraz university, shiraz, iran. mojtaba masoudi ichthyology research laboratory, department of biology, college of sciences, shiraz university, shiraz, iran. roozbehan khaefi ichthyology research laboratory, department of biology, college of sciences, shiraz university, shiraz, iran. keyvan abbasi aquatic ecology department of the inland water aquaculture research center, p.o. box 66, bandar anzali, iran.

although the southern caspian sea basin (scsb) fish fauna has been studied for more than 200 years, new species continue to be discovered, reported and renamed. here we take the opportunity to provide a new and updated checklist of the fishes of the southern caspian sea basin. the list is based on historical literature records and taxon occurrence data obtained from natural history collections ...

Journal: :journal of agricultural science and technology 2014
a. r. vaezi h. a. bahrami

soil erosion by water is the main factor of land degradation, particularly in semi-arid regions where soil productivity is usually low and lowering soil quality can severely decrease crops yields. this study was done in an area of 900 km2 in the semi-arid agricultural region of hashtroud in northwestern iran to determine the relationship between soil productivity and soil erodibility. wheat gra...

Journal: :international journal of agricultural science and research 2012
s. a. noorhosseini m. s. allahyari m. s. sabouri

among the agricultural crops, rice has had the largest share in pesticide use. most of the croplosses are caused by the attack of chilo suppressalis. the purpose of this study was toexamine effective factors on adoption of biological control by farmers in talesh region ofiran. a survey study was conducted using a stratified random sampling to collect data fromfarmers in the selected rural areas...

Journal: :caspian journal of environmental sciences 2010
r. akhavan

this research was conducted to investigate spatial variability and estimate tree attributes in a plantation forest in the caspian region of iran using geostatistical analysis. sampling was performed based on a 50m?125m systematic grid in a maple stand (acer velutinum boiss) 18 years of age using circular samples of 200m2 area. totally, 96 sample plots were measured in 63 hectares and 14.25 hect...

Journal: :journal of rangeland science 2014
farhad nourmohammadه taher fatollahه javad mirzaei karim soleimani mahmoud habibnejhad roshan

erosion is one of the important social-economic problems in iraniancatchments that have been posed by surface water vastness and runoff production. so, thestudy of water resources, soil erosion and effective factors is of high importance. gullyerosion also extends in many parts of iran and its study particularly in viewpoint ofsediment yield is therefore very important and should be taken into ...

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