نتایج جستجو برای: irradiation
تعداد نتایج: 64089 فیلتر نتایج به سال:
background: ionizing radiation causes cognitive impairment in adult brain. however, the effects of various irradiation protocols with fractionated fixed total dose on hippocampal function have not yet been studied. materials and methods: fractionated whole brain irradiation with a total dose of 36 gy was performed according to the following protocols: 2gy-18 fractions (2gy*18), 4gy-9 fraction (...
due to importance of combination therapies in cancer treatment, this study was performed to find the effects of hyperthermia and neutron irradiation and heir combination on the human lymphocytes. blood samples were treated separately with 41.5 °c for 30 and 60 minutes, 43 °c for 15 and 30 minutes, as well as 10 cgy neutron irradiation. they also treated with hyperthermia followed by irradiation...
objective: due to recent advances in nanotechnology it is now possible to accumulate high atomic-number nanomaterial such as gold nanoparticles (gnps) in cancerous cells and take advantage of their absorbed dose enhancement property as radiosensitizing agents. this study aimed to investigate the absorbed dose enhancement factor due to the presence of pegylated gnps under the irradiation of an m...
Introduction It has long been known that ionizing radiation can lead to detrimental effects in normal cells. In this light, Radioprotective chemicals have been used to decrease morbidity or mortality caused by ionizing irradiation. This study aimed to evaluate the radio-protective effect of N-acetylcysteineagainst radiation-induced mortality in male mice. Materials and Methods 52 healthy mal...
background: boron neutron capture therapy (bnct) is a radiotherapy that combines biological targeting and high linear energy transfer. a potential therapeutic approach for non-small cell lung cancer (nsclc) is considered. however, dose in lung tumor is not homogeneous, and it will reduce the effect of bnct treatment. in order to improve the dose distribution of bnct, the multi-field irradiation...
Mutation breeding as an alternative to conventional breeding, is commonly used to improve current varieties and to generate new varieties. Genetic variation in rice is very low, because of its self-pollination. This study, carried out to determine the GR50 dosage for an irradiation mutagenesis study on the rice and to determine the effects of gamma irradiation on germination and growth rate of ...
To investigate the effects of different levels of gamma irradiation on degradation rate of barley and soybean seeds and performance of lambs, this study were done. In the first experiment barley and soybean seeds were irradiated with 2 doses of gamma irradiation and degradation rate were estimated in different incubation times. Results of current study showed that gamma irradiation increased t...
the aim of present study was to investigate the potential antioxidant and lung protective activities of sambucus ebulus (se) against toxicity induced by gamma irradiation. hydro alcoholic extract of se (20, 50 and 100 mg/kg ) was studied for its lung protective activity. . phenol and flavonoid contents of se were determined. male c57 mice were divided into 10 groups with five mice per group. on...
the aim of this study was investigating the effect of gamma irradiation and naoh treatment of some agricultural by products (tomato pulp, orange pulp, pistachio hull and wheat straw) on fermentation parameters and gas production test. treatments of gamma irradiation (50, 100 and 200 kgy) and %5 naoh was done on each source of by products. the results showed that gamma irradiation at the dose of...
The aim of this study was to degrade furfural by a new nanotube system. To degrade some organic pollutants as well as to reduce the amount of furfural which is a well-known pollutant in oil industry, the photocatalytic process along with ultraviolet (UV) irradiation may be employed. In this study, the UV/TiO2/Pd system in which the nanoparticles of palladium doped into the titanium dioxide was ...
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