نتایج جستجو برای: dose response
تعداد نتایج: 1225019 فیلتر نتایج به سال:
Background: Drug resistance is widely believed to be an increasingly serious threat to global public health. We have previously reported that short term exposure of microorganisms to diagnostic ultrasound waves could significantly alter their sensitivity to antibiotics. In our previous studies, Klebsiella pneumoniae showed major differences in the sensitivity to antibiotics in exposed and non-e...
Phototransferred thermoluminescence (PTTL) was used to reeestimate the absorbed gamma dose in α-Al2O3:C dosimeter. The PTTL response of this phosphor for different UVB irradiation times was investigated. The results show a linear PTTL response for gamma absorbed doses from 0.1 to 14 mGy. Because of high PTTL sensitivity in this phosphor, the low limit of re-estimated gamma dose using PTTL metho...
A 65 year old male with metastatic colorectal cancer (mCRC) in the liver was referred for selective internal radionuclide therapy (SIRT) following a history of extensive systemic chemotherapy. 90Y PET imaging was performed immediately after treatment and used to confirm lesion targeting and measure individual lesion absorbed doses. Lesion dosimetry was highly predictive of eventual response in ...
In this study, the pure nano-structure hydroxyl apatite samples were synthesized via hydrolysis method. The powder samples were sintered at various temperatures of 500°C, 700°C and 900°C in a furnace. X-ray diffraction (XRD) and Fourier transform infra-red (FTIR) spectroscopy systems were used to characterize the synthsized samples. Comparison of the glow curves shows that the most ...
background: the purpose of this study was to evaluate the dependency of magica polymer gel dosimeter response (r2) on different electron energies as well as on different mean dose rate for a standard clinically used linear accelerator. materials and methods: the sensitivity of the dosimeter was represented by the slope of calibration curve in the linear region measured for each modality. a cali...
The purpose of this paper is to evaluate whether Relationship Marketing (RM) creates competitive advantage and retains customers for businesses. In order to evaluate RM practices in Grameen Phone (GP), two hundred and sixty five respondents were surveyed. Findings show that GP has been applying RM successfully, consequently retaining customers and achieving competitive advantage. However, GP sh...
Introduction: Microdosimeters are helpful for dose equivalent measurement in unknown radiation fields. The favorable physical and mechanical properties of the detector-grade chemical vapor deposition diamond materials have made the diamond microdosimeters suitable candidate for radioprotection applications in space. The purpose of this work is the investigation of the dose equivalent response o...
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