نتایج جستجو برای: radium equivalent
تعداد نتایج: 141493 فیلتر نتایج به سال:
Background: Radon is an odourless, colourless and tasteless gas and it is the first cause of lung cancer among non- smokers. The assessment of the level of radium in building materials helps in understanding the radiological implications. It has been observed that everyone has some levels of exposure to them. Therefore measurement of radium and radon in the soil samples are important f...
The insertion into an animal tumor of buried capillary glass tubes containing radium emanation presents a comparatively new departure in radium therapy and is undoubtedly destined to play a prominent part in the future development of the whole field of radiotherapeutics. The technique employed on animals and human beings is as follows: Radium emanation, the first active product of decomposition...
The radium atom is a promising system for studying parity and time invariance violating weak interactions. However, available experimental spectroscopic data for radium is insufficient for designing an optimal experimental setup. We calculate the energy levels and transition amplitudes for radium states of significant interest. Forty states corresponding to all possible configurations consistin...
THE first cure of skin cancer with ionizing irradiation was reported in I899. Within a few years the new rays had been tried out on many disease processes, including deep tumours. Cures of superficial, accessible cancers were reported in increasing numbers, but at the same time complications followed the use of the new rays. These included the production of cancer. By the 1930s radium and radon...
This little book gives a short account of cases treated by the author with radium in the hope that it may draw the attention of the general practitioner and student to the conditions in which this valuable therapeutic agent may be of use. The first portion of the work is devoted to a short summary of the physical problems connected with radium, including apparatus, screening, methods of applica...
The largest fraction of the natural radiation exposure we receive comes from a radioactive gas, radon and its decay products (nearly 50%). The radon gas can enter to the body via respiring, drinking and eating and caused damage to respiratory and digestion systems. Also radium-226 is widely distributed in the environment. When a person ingests radium, this element deposits in bones and cause to...
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 ...
Very little is known concerning the changes that occur in living tissue following the injection of solutions of an “active deposit’’ of radium emanation. This investigation was undertaken to determine what changes occur in the principal organs of the animal body following such a treatment, and to afford data that might act as a guide in the treatment of certain types of cancer, in which the sol...
In 2004, docetaxel was approved for the treatment of metastatic castration-resistant prostate cancer (mCRPC). For the next several years, there was a lull in drug approvals. However, from 2010 onwards, 5 additional therapies have been approved on the basis of showing a survival benefit in phase III studies. These agents include sipuleucel-T, cabazitaxel, abiraterone, enzalutamide and (most rece...
Prostate cancer is the most common malignant disease in men. Several therapeutic agents have been approved during the last 10 years. Among them, radium-223 dichloride (Xofigo®) is a radioactive isotope that induces irreversible DNA double-strand breaks and consequently tumor cell death. Radium-223 dichloride is a calcium-mimetic agent that specifically targets bone lesions. Radium-223 dichlorid...
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