manner that a medical practitioner will have not only no difficulty in following the author, but also will positively enjoy reading him. The author first of all deals with the physics of radium: next the apparatus and means of application, then the sensitivity of the tissues to radium, and. proceeds to deal with malignant growths in various situations, which are suitable for radium therapy. The...

The discovery of radium by Madame Curie in 1898 opened up a field of physical research the limits of which it is impossible to see. Although it was found at an early stage that radium had a definite action upon living tissues, this appeared to be purely destructive, and it is only recently that the selective action of radium upon cancer cells has been adequately demonstrated. Depending as it do...

Introduction Foodstuffs are known to contain natural and artificial radionuclides. Determination of radionuclide concentration is of great significance for the protection of human health. The main objective of the present study was the quantification of radionuclides in tea samples, cultivated in Guilan Province in North of Iran. Materials and Methods The activity concentrations of 226Ra, 232Th...

Exploration of oil and natural gas from shale deposits can bring to the surface radioactivity. Naturally occurring Uranium-238 and Thorium-232 as part of their decay chains can produce radium isotopes, which are themselves precursors of radon gas. Due to the solubility of radium and its contaminated impact on the environments and health concerns, regulations on the levels of Ra226 and Ra228 in ...

Radium has been described (I have forgotten by whom,) as the most potent element which has been yet discovered for the production of discontent in the medical profession. It was hailed at first as a panacea for all ills. Although it has not fulfilled the hopes based upon it by those early enthusiasts, it has opened up new fields in the treatment of disease, especially malignant disease, but eve...

I t is well known that radium rays, as well as x-rays, are capable of affecting the living cell. Bergoni~ and Tribondeau 1 from extensive experimental studies made the generalization 2,3 that: "Immature cells and cells in an active state of division are more sensitive to the x-rays than are cells which have already acquired their fixed adult, morphological or physiological characters. ''2 Subse...

Background: Patients with advanced-stage ovarian cancer face a poor prognosis because of recurrent peritoneal cavity metastases following surgery and chemotherapy. Alpha-emitters may enable the efficient treatment such disseminated diseases their short range highly energetic radiation. Radium-224 is candidate ?-emitter due to its convenient 3.6-day half-life, more than 90% decay energy originat...

Background: The concentrations and distributions of natural and anthropogenic radioactive materials in soils of the site of Rooppur Nuclear Power Plant (RNPP) were investigated with the aim of evaluating the environmental radioactivity and radiation hazard. Materials and Methods: Soil samples were collected from 40 locations in and around the proposed site of Rooppur Power Plant and determined ...

Background: Turkey, especially the northern part of it, was one of the countries which were contaminated by the Chernobyl accident.  Rize is a city located in the Northeastern district of Turkey which was heavily influenced by the Chernobyl nuclear accident. Materials and Methods: In this study, the activity concentrations of natural (226Ra, 232Th, 40K) and artificial (137Cs) were measurem...

background: the radioactivity levels in sediment and rock samples of i̇kizdere and kaptanpaşa valley have been determined. to our knowledge, there seems to be no information about radioactivity level in the i̇kizdere and kaptanpaşa valley sediments and rocks so far. materials and methods: the average radium equivalent activity (raeq), the total absorbed dose rate (d), the external risk index (hex...