Radium activity in pore water of wetland sediments often differs from the amount expected from local production, decay, and exchange with solid phases. This disequilibrium results from vertical transport of radium with groundwater that flows between the underlying aquifer and surface water. In situations where groundwater recharge or discharge is significant, the rate of vertical water flow thr...

^ dEsire first to express my appreciation of the compliment Paid rns in inviting me to lecture before the Bristol MedicoCh" lrurgical Society, and to voice the very keen and heartfelt P^asure I experience in meeting once again my former *eachers and fellow-students. I spent six of the happiest ^ears ?f my life at the old Bristol Medical School, first as Sclent and later as Medical Tutor, and ma...

Within this paper is presented information about current study of radon and radium analysis in self-bottled drinking water from the public fountain “Elixir” Moklište area, city Kavadarci. Obtained results for measurements, preventive method taken samples, ranged 3.40 up to 3.69 Bq·l–1, while values typical samples 2.60 3.62 Bq·l–1. Radon concentration measured obtained way showed lower than cor...

The fraction of radon atoms generated from radium decay that are released from into a rock or soil pore space is defined as the radon emanation coefficient, or emanating power, of the material. The emanation coefficient of rocks and soils typically varies between about 0.05 and 0.70, and an average value for soils is probably between 0.20 and 0.30. Geologic, pedologic, and climatic factors, inc...

Radium implants have been used in the past to treat cervical cancer, and much has been written about the complication of ureteral stricture.1-6 Ureteral rupture is a well-documented urologic problem resulting from numerous iatrogenic and noniatrogenic causes, including ureteroscopy,7 elective pregnancy termination,8 both penetrating and blunt trauma,9-11 and urolithiasis. 12,13 In reviewing the...

Radium needles that were once implanted into tumours as a cancer treatment are now obsolete and constitute a radioactive waste problem, as their half-life is 1600 years. The reduction of radium by photonuclear transmutation by bombarding Ra-226 with high-energy photons from a medical linear accelerator (linac) has been investigated. A linac dose of 2800 Gy produced about 2.4 MBq (64 microCi) of...

The treatment scope for patients with metastatic castrate-resistant prostate cancer (mCRPC) is rapidly expanding. On May 15, 2013, the U.S. Food and Drug Administration (FDA) approved radium-223 chloride ((223)RaCl2) for the treatment of mCRPC patients whose metastases are limited to the bones. Radium-223 is an α-emitting alkaline earth metal ion, which, similar to calcium ions, accumulates in ...

The measurements of radium content and radon exhalation rates in terms of mass and area in soil samples collected from various locations in the shahjahanpur District were carried by using cylindrical can technique(CCT) based on LR-115 type II plastic track detector. From the result it was found that the effective radium content in the study area varies from 0.485Bq/kg to 2.503Bq/kg with an aver...

The safe disposal of liquid wastes associated with oil and gas production in the United States is a major challenge given their large volumes and typically high levels of contaminants. In Pennsylvania, oil and gas wastewater is sometimes treated at brine treatment facilities and discharged to local streams. This study examined the water quality and isotopic compositions of discharged effluents,...

tumours not directly radiated and at a distance from those actually radiated do suffer and disappear when radium is applied. It has been said that these are radiation effects (G. L,. Rohdenburgh and F. D. Bullock, New York Journal of Cancer Research, III, pages 181-191, April, 1918), but there is the law of inverse squares to be considered and the distance from the right side of the chest to th...