Harris RS, Schuster DP. Visualizing lung function with positron emission tomography. J Appl Physiol 102: 448–458, 2007. First published October 12, 2006; doi:10.1152/japplphysiol.00763.2006.—Positron emission tomography (PET) provides three-dimensional images of the distributions of radionuclides that have been inhaled or injected into the lungs. By using radionuclides with short half-lives, th...

Exposures of the American public occurred nationwide from the testing of nuclear weapons in the United States, the Pacific, and the former Soviet Union. After decades of diminished public awareness on the subject of health risks resulting from exposure to fallout, the release of the National Cancer Institute's 1997 report on nationwide exposure to 131I from the Nevada Test Site (NTS) has led to...

INTRODUCTION Image Gently should be terminated. I agree. This statement is not much of a counterpoint to Dr Cohen’s [1] perspective. But, as withmany things, the essence really lies in the journey. And our paths and perceptions along the way are quite different. Before discussing this journey, there are a few points to make. First, I will not respond to the individual items in Dr Cohen’s commen...

The authors review current specific features of internal radiation doses received by people resided in 135 urban and rural settlements six south-western districts the Bryansk region affected Chernobyl accident. residents average annual dose > 1 mSv. Cs-137 radioactivity contained local agricultural natural food was evaluated with account dietary structure. Comparative analysis long-term data...

background: the activity concentrations of some radionuclides in soil samples collected from 20 locations in 8 major towns in oyo state, southwestern nigeria have been determined by gamma-ray spectrometry technique. materials and methods: the activity concentrations were determined using high-purity germanium (hpge) detector (canberra industries inc.). the outdoor absorbed dose rates in air at ...

The Fukushima Daiichi Nuclear Power Plant accident on March 11, 2011 attracted people's attention, with anxiety over possible radiation hazards. Immediate and long-term concerns are around protection from external and internal exposure by the liberated radionuclides. In particular, residents living in the affected regions are most concerned about ingesting contaminated foodstuffs, including dri...

Radiation effects in pine forest Influence of IR on forest ecosystems most clearly revealed itself near the Chernobyl NPP (ChNPP), where magnitudes of absorbed doses reached 'lethal' values, as applied to conifers. Main contribution to absorbed dose was due to beta-radiation of short-living radionuclides. To largest extent the radiobiological effects appeared at injured plantations of pines and...

Arctic residents, whose diets comprise a large proportion of traditional terrestrial and freshwater foodstuffs, have received the highest radiation exposures to artificial radionuclides in the Arctic. Doses to members of both the average population and selected indigenous population groups in the Arctic depend on the rates of consumption of locally-derived terrestrial and freshwater foodstuffs,...

Introduction Natural and man made radioactive sources exist in our environment they can enter into our food chains. One of these is the soil-mushroom-human chain. High level doses of natural radiation can cause hazards to humans. Materials and Methods Samples of Agaricus bisporus cultivated edible mushroom in Tehran province- Iran were collected from 7 farms. Specific activity of 226Ra, 228Ra, ...

conclusions the effects of rp knowledge, attitude, and practice on job stress were significant. in order to reduce job stress in radiation environments, ongoing training programs related to self-care and protection principles are recommended. results the prevalence rate of job stress was 22.5% based on calculation formulas and possible scores on the jcq. sex, rp-knowledge, attitude, practice, a...