radiation dose Articles

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The lack of acute effect of low–to–moderate–dose ionising radiation on endothelial proteome

by Inderscience Publishers  (Aug. 1, 2013)

Epidemiological studies have shown that moderate and low radiation doses to the heart area may result in an increase in cardiovascular mortality. It has been suggested that cardiovascular endothelium could be one of the targets for the ionising radiation–induced heart injury. We have used human endothelial cells as an in vitro model to study ...

Effect of three non–protein thiols on CHO cells exposed to low doses of X–radiation

by Inderscience Publishers  (Aug. 1, 2013)

The goals of this study were to determine whether cysteamine, β–mercaptohetanol and glutathione protect CHO K1 cells against chromosomal aberrations induced by low doses of X–radiation, as well as whether radiation protection is related to physical properties of those thiols. Experimental design included four different treatments: (a) control, (b) ...

Low–dose ionising radiation: scientific controversy, moral-ethical aspects and public choice

by Inderscience Publishers  (May 22, 2013)

The ethical issues of radiation protection are dealt with on a systematic basis. It is shown that the Linear No–Threshold (LNT) model of low–dose ionising radiation damage, being widely accepted, is still ill–founded. In everyday routine, the present regulation imposes excessive cost on society, effectively leading to loss, rather than to saving, ...

Epistemology on the attribution of radiation risks and effects to low radiation dose exposure situations

by Inderscience Publishers  (Apr. 2, 2012)

The epistemology on the attribution of radiation risks and effects relates to the theories of knowledge applied for assigning harm to radiation exposure, especially with regard to methods, validity and scope. The attribution of radiation risk is associated with the concept of probability, including the plausibility of whether there is risk in ...

Clinical significance of low-dose radiation therapy: radiation hormesis

by Inderscience Publishers  (Dec. 27, 2010)

This study was designed to investigate the clinical significance of low-dose radiation therapy, radiation hormesis, and accuracy of therapeutic regimen. Radiation hormesis was performed in six patients (four patients with malignant diseases and two patients with benign diseases) in the experimental room where they could be exposed to a low level ...

A computational model for low-dose radiation induced cellular transformation by different radiation quantity

by Inderscience Publishers  (Dec. 13, 2011)

In this study, a new mechanism model is constructed to fit the experimental data from different radiation quantities. The aim of the study was to construct a comprehensive model that contained all the essential biological mechanisms, such as direct irradiation effects or bystander effects, induced DNA damage, Double-Strand Break (DSB) error-free ...

External and internal radiation doses due to alpha activity in Tafila district, Jordan

by Inderscience Publishers  (Jun. 6, 2012)

Tafila district of Jordan is unique in the presence of phosphate mines and hot spa which are the major sources of natural radioactivity. Natural radionuclides transfer from soil to vegetables grown in the region, and become a part of people's food. In this study, 16 soil and vegetable samples from Tafila district were collected from eight ...

Low doses of γ–radiation induce consistent protein expression changes in human leukocytes

by Inderscience Publishers  (Jun. 6, 2012)

Twenty percent of cancer patients experience adverse effects after radiotherapy. The therapeutic doses are adjusted to the most sensitive individuals, resulting in a suboptimal dose for many patients. At present there is no screening system available to predict individual radiosensitivity. The main aim of this study is to investigate differences ...

Radiation source rate estimation through data assimilation of gamma dose rate measurements for operational nuclear emergency response systems

by Inderscience Publishers  (Dec. 28, 2012)

This paper presents an evaluation of an innovative data assimilation method that has been recently developed in NCSR Demokritos for estimating an unknown emission rate of radionuclides in the atmosphere, with real–scale experimental data. The efficient algorithm is based on the assimilation of gamma dose rate measured data in the Lagrangian ...

Performance of some handheld dosimeters used for gamma–ray ambient dose rate measurements

by Inderscience Publishers  (Aug. 1, 2013)

A study was carried out on the performance of some handheld dosimeters that are used for measuring ambient gamma dose rates. A CsI scintillation–based and two GM–based dosimeters were used to measure the absorbed dose rates in an indoor environment, inside a lead shield, on different floors of a building, in a desert environment and in a boat on ...

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