نتایج جستجو برای: radiation
تعداد نتایج: 238304 فیلتر نتایج به سال:
the hematopoietic syndrome is anticipated when a dose of radiation greater than 100 cgy is received. the resulting clinical situation is life-threatening because of opportunistic infections and gradual decline in immune competency due to irradiation. because of evidence of a possible immunomodulatory role for cimetidine, an antagonist of histamine h2 receptors, we studied the effects of this dr...
background non-melanoma skin cancers (nmsc) are the most common cancers worldwide. these cancers are not accompanied by high mortality however they lead to various complications. evaluation of nmsc predisposing factors could result in preventive measures, improvement of quality of life and reduction of medical costs. objectives this study aimed to determine predisposing factors of non-melanoma ...
background: accurate voxel phantom is needed for dosimetric simulation in radiation therapy for malignant tumors in female pelvic region. however, most of the existing voxel phantoms are constructed on the basis of caucasian or non-chinese population. materials and methods: a computational framework for constructing female pelvic voxel phantom for radiation dosimetry was performed based on chin...
the iranian journal of radiation research (ijrr) is now in the eighth year of publication. this journal is the mouth piece of shared idea of dr shahram akhlaghpoor and me, which was established way back in 2002. at that time the main emphasis of the founder members was to make the subject of radiation research attractive and interesting especially for combating cancer and risk assessment. the d...
ionizing radiation causes dna damage and chromosome abbreviations on normal cells. the radioprotective effect of celecoxib (clx) was investigated against genotoxicity induced by ionizing radiation in cultured human blood lymphocytes. peripheral blood samples were collected from human volunteers and were incubated at different concentrations at 1, 5, 10 and 50 μm of clx for two hours. at each do...
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abstract background: adjacent treatment fields are commonly used in external beam radiation therapy, such as mantle and inverted-y fields for the treatment of hodgkin’s disease and craniospinal fields used in the treatment of medulloblastoma and head and neck tumors when the lateral neck fields are placed adjacent to the anterior supraclavicular field. in each of these situations, there is a po...
this study is considering a micropolar fluid flow over a porous stretching sheet in the presence of thermal radiation and uniform magnetic field. the effects of local variation in thermal conductivity of micropolar fluid on heat transfer rate from the sheet are investigated; besides, the impacts of radiation, magnetic field and porous sheet on variations of thermal boundary layer thickness are ...
background: fatigue is a common side effect in cancer patients undergoing radiation therapy (rt). radiation-induced fatigue affects the quality of life, but there is no definitive treatment option. in this study, the weight-loaded forced swim test was performed to assess the effect of coenzyme q10 (coq10) on radiation-induced fatigue. materials and methods: a total of 60 rats were divided rando...
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