نتایج جستجو برای: natural radionuclide
تعداد نتایج: 524775 فیلتر نتایج به سال:
Background: In internal radiation therapy of cancer, optimal targeting ligand and type therapeutic radionuclide must be considered carefully for effective treatment. addition, nuclide may vary depending on diverse parameters characterizing the tumor. Thus, use in various cancers, there is a need development carrier that can firmly bind to variety nuclides. Here we introduce biocompatible iron o...
The present study examines the extent of spinal cerebrospinal fluid (CSF) absorption in healthy individuals in relation to physical activity, CSF production, intracranial pressure (ICP), and spinal CSF movement. Thirty-four healthy individuals aged 21-35 yr were examined by lumbar puncture and radionuclide cisternography with repeated imaging. ICP was registered before and after CSF drainage, a...
The detection of regional asynergy provides strong evidence for a critical reduction of coronary blood flow to that zone. In the present study, the usefulness of combining computer-assisted radionuclide angiography and isometric handgrip exercise testing to detect coronary heart disease (CHD) was evaluated. One hundred twenty-nine patients with chest pain undergoing cardiac catheterization were...
To assess the environmental radioactivity levels and hence to determine the population exposure in Kutubdia Island, Bangladesh the sediment samples were analyzed by using gamma ray spectrometry. In those sediment samples the average activity concentration of natural radionuclides 238U, 232Th and 40K were found 15.39±1.67, 38.35±0.76 and 475.51±21.15 Bq/kg respectively. ...
Background: The natural radioactivity level and the radon concentration of soil were measured at four important geothermal area located in Dikili geothermal region, Turkey. Materials and Methods: The natural radionuclide content of soil samples were measured by NaI(Tl) gamma spectrometer system and the soil radon concentration were determined using Kodak-Pethe LR-115 Type II Solid State Nuclear...
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