Buscar
Mostrando ítems 1-10 de 527
Two thermal methods to measure the energy fluence of a brief exposure of diagnostic x rays
(1992-07-03)
This paper describes two simple thermal methods for measuring the energy fluence in J/cm 2 from a diagnostic x-ray exposure. Both detectors absorb essentially 100% of the radiation and give a signal that is directly ...
Human genetic studies in areas of high natural radiation. IX. Effects on mortality, morbidity and sex ratio
(Williams & Wilkins, 1978-01-01)
Gene Expression Profiles in Radiation Workers Occupationally Exposed to Ionizing Radiation
(JAPAN RADIATION RESEARCH SOC, 2009)
Ionizing radiation OR) imposes risks to human health and the environment. IR at low doses and low (lose rates has the potency to initiate carcinogenesis. Genotoxic environmental agents such as IR trigger a cascade of signal ...
Kras oncogene analysis of non-melanoma skin tumors in Southeastern Brazil
(1999-09-01)
Skin cancers are the most common human malignant neoplasia and their incidence is growing, chiefly in tropical countries. There is evidence that ultraviolet (UV) radiation present in sunlight is important for genetic damage. ...
Comparative test of radiological exposure between femoral and radial techniques, development of a protective device and clinical trial design
(2015-06-09)
Background Interventional procedures via radial technique have progressively increased due to improved patient comfort, lower complication rates and reduced mortality in some scenarios. One area of interest is radiation ...
Reaction of Bipolaris euphorbiae to environmental factors and its tolerance to solar and ultraviolet radiation
(Springer, 2011-06-01)
The determination of the ideal cultivation conditions and the knowledge of solar radiation tolerance are important aspects that must be investigated for the use of Bipolaris euphorbiae Muchovej and Carvalho as a biocontrol ...
Occupational radiation exposure in vascular interventional radiology: A complete evaluation of different body regions
(2016-08-01)
Purpose To perform a complete evaluation on radiation doses, received by primary and assistant medical staff, while performing different vascular interventional radiology procedures. Materials and methods We evaluated dose ...
Occupational exposure of physical therapists to electric and magnetic fields and the efficacy of Faraday cages
(Pan Amer Health Organization, 2011-10-01)
Objective. Measure physical therapists' exposure to the electric and magnetic fields produced by 17 shortwave diathermy devices in physical therapy clinics in the city of Presidente Prudente, São Paulo State, Brazil. Compare ...
Anticlastogenic effect of β-glucan, extracted from Saccharomyces cerevisiae, on cultured cells exposed to ultraviolet radiation
(2013-01-01)
β-glucan is an important polysaccharide due to its medicinal properties of stimulating the immune system and preventing chronic diseases such as cancer. The aim of the present study was to determine the anticlastogenic ...