نتایج جستجو برای: سامانه 137
تعداد نتایج: 22285 فیلتر نتایج به سال:
During the operational history of the Savannah River Site (SRS), many different radionuclides have been released from site facilities into the SRS environment. However, only a relatively small number of pathways, most importantly (137)Cs in fish and deer, have contributed significantly to doses and risks to the public. The "effective" half-lives (Te) of (137)Cs (which include both physical deca...
پراکندگی فوتون های گاما به سمت عقب از سطح یک ماده را پس پراکندگی پرتوهای گاما می گویند. در این پژوهش حفاظ های سربی، آلومینیومی و آهنی به شکل دیسک به ضخامت تقریباً 1/0 سانتی متر و قطر 18 سانتی متر ، به منظور بررسی پس پراکندگی تهیه شدند. همچنین یک چشمه ی سزیم 137 بین حفاظ و آشکارساز یدورسدیم قرار داده شد و طیف گامای چشمه ثبت گردید. به منظور بررسی تأثیر ضخامت حفاظ در میزان پس پراکندگی گاما، در هر م...
background: two of the important radionuclides which are entered to environment and human diet are radium-226 (226ra) and cesium-137 (137cs). it is clear that the methods for preparation of foods such as peeling, washing, cooking or frying can affect the dose which is received by human due the to consumption of foodstuffs. an experiment has been performed at the environmental monitoring section...
137 Placenta Percreta, Unusual Presentation Abstract Type: Case Report/Case Series Ali S. Faris, M.B.Ch.B, FIBMS; Leo Jeyaraj, M.D., FRCA; Susan Goheen, M.D., F.R.C.P.C.; George Dumitrascu, M.D., F.R.C.P.C. The Ottawa Hospital Civic CampusType: Case Report/Case Series Ali S. Faris, M.B.Ch.B, FIBMS; Leo Jeyaraj, M.D., FRCA; Susan Goheen, M.D., F.R.C.P.C.; George Dumitrascu, M.D., F.R.C.P.C. The ...
0 T verse has been a subject for lively discussion among scholars for at least two centuries. Yet in spite of the length of time that the topic has been under intensive study, no generally accepted solution has emerged. (A brief survey of previous research into the topic is offered by Stuart.)’ Among the different approaches to the problem, the one that seems most productive of insights is that...
Schizophrenia is a complex genetic disease and characterized by affective, cognitive, neuromorphological, and molecular abnormalities that may have a neurodevelopmental origin. MicroRNAs (miRNAs) are critical to neurodevelopment and adult neuronal processes by modulating the activity of multiple genes within biological networks. MiR-137 as a brain-enriched microRNA, plays important roles in reg...
During the course of the last decade the incidence of decompression sickness within the Royal Navy has markedly increased. Whereas in the past such cases were largely the result of accident or negligence and fortunately rare, the testing of new techniques and tables has produced sufficient material to make some analysis of the various methods of treatment worth while. This paper consists of sum...
Page: 137 137–143 Syst. Biol. 64(1):137–143, 2015 © The Author(s) 2014. Published by Oxford University Press, on behalf of the Society of Systematic Biologists. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provid...
The vertical distribution of (137)Cs activity in peat soil profiles and (137)Cs activity concentration in plants of various species was studied in samples collected at two sites on a raised bog in central Sweden. One site (open bog) was in an area with no trees and only a few sparsely growing plant species, while the other (low pine) was less than 100 m from the open bog site and had slowly gro...
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