نتایج جستجو برای: Radio-sensitivity
تعداد نتایج: 432275 فیلتر نتایج به سال:
background: about 83% of patients with breast cancer (bc) undergo radiation therapy. these patients show various degrees of mild to acute reactions during and after the completion of treatment.the aim of this study was to compare inherent radiosensitivity of gamma-irradiated g0-lymphocytes between bc patients and normal individuals using cytokinesis blocked micronucleous assay. methods: three t...
introduction: different dosimetric modalities (e.g., ionization chambers, semiconductors, tlds, radiographic films) often have some problems determining isodose curves and percentage depth doses in high dose gradient regions. research has been ongoing to develop portable high resolution dosimetry devices with accurate absolute dosimetry capabilities and easy data analysis. the ‘presage’ dosimet...
Introduction: Different dosimetric modalities (e.g., ionization chambers, semiconductors, TLDs, radiographic films) often have some problems determining isodose curves and percentage depth doses in high dose gradient regions. Research has been ongoing to develop portable high resolution dosimetry devices with accurate absolute dosimetry capabilities and easy data analysis. The ‘PRESAGE’ dosimet...
Signal optimization is affected during radio links between a transmitter and a receiver located in adjacent material media with differing optical densities. The optimization is carried out via the automated control theory method. The radio signal obtained after the optimization is coordinated with the two media's electrical characteristics simultaneously; and this enables low power and small an...
monumental changes occurring on a daily basis have altered the world into a global village of expanding technology and shrinking geography in which preparing language learners for intercultural communication seems to be a sine qua non for modern language education. employing a cross-sectional design in its first phase, this study investigated the intercultural sensitivity and language proficien...
The aim of this paper is the examining ways for quality control and calibration of Rams-88 calibrator. The device measures the amount of &gamma and &beta rays in radio medicines by means of the amount of radioactivity of radio nuclide. In this paper experiments has been done for explaining correct operation of these devices using standard method including precision, accuracy and linearit...
Background: Hepatocellular carcinoma (HCC) is the most common cancer worldwide, with high morbidity and mortality. This study was aimed to explore the role of microRNA-1284 (miR-1284) in radio-sensitivity of HCC cells. Methods: HCC cell lines HepG2 and SMMC-7721 were used in this study and their correspondingly radioresistant cells were established. The mRNA level expression of miR-1284 in thes...
Objective(s): Taking advantage of high atomic number of gold nanoparticles (GNPs) in radiation dose absorbing, many in vitro and in vivo studies have been carried out on using them as radio-sensitizer. In spite of noticeable dose enhancement by GNPs at keV energies, using this energy range for radiotherapy of deep-seated tumors is outdated. The aim of the present work was to examine the effect ...
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