نتایج جستجو برای: external environmental radiation
تعداد نتایج: 775132 فیلتر نتایج به سال:
All building materials contain various amounts of natural radioactive nuclides. Materials derived from rock and soil contain mainly natural radionuclides of the uranium (238U) and thorium (232Th) series, and the radioactive isotope of potassium (40K). Radiation exposure due to building materials can be divided into external and internal exposure. The external exposure is caused by direct gamma ...
Introduction: Rectal and bladder cancer are the most common disease among young man. Although External Radiotherapy (EBRT) is one of the most effective treatment options introduced so far, the testis undesired radiation dose increases the risk of infertility and hormonal malfunctioning. The testicles are usually outside of the radiation field, but they can be exposed either to ...
A key element of academic writing involves incorporation of external voices, which is a complex rhetorical and linguistic task. Student writers must face this challenge of using sources to strengthen their own arguments. Appraisal, specifically Engagement, provides a useful framework for analyzing source use in texts, as it considers evaluation and dialogic voicing. This article describes a sem...
This is a summary of the report of an expert group meeting on resource mobilization for poverty eradication in the least developed countries held at United Nations Headquarters in New York on 19 and 20 January 2004. The first part of the report provides an overview of the current challenges faced by the LDCs in reducing the high rates of widespread poverty. The second part discusses innovative ...
This article uses a competence-based approach to the firm in order to analyse the recent destabilisation of internal labour markets. We argue that increasing knowledge codification made possible by the diffusion of information and communication technologies has made competences less dependent upon individuals. Knowledge has been increasingly embodied in firms themselves which has played an impo...
Over the past two decades, there has been a significant evolution in the technologies and techniques employed within the radiation oncology environment. Over the same period, extensive research into the use of nanotechnology in medicine has highlighted a range of potential benefits to its incorporation into clinical radiation oncology. This short communication describes key tools and techniques...
most women want to know about possible consequences radiology, radioisotope or even television terminal. because knowing about them, prevent from fear. fetus is inevitably placed to some types of radiation. environmental radiation occurs from atmosphere, soil and buildings. total radiation above, ingested and possibly inhaled radioisotopes probably is seventy five-thousandth to one-tenth of ram...
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