نتایج جستجو برای: radioactive trace elements

تعداد نتایج: 351116  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1392

gol-e-gohar iron ore mine of sirjan in southern part of iran is a large open pit that operates below the groundwater table and during mining operation, dewatering is required to prevent operation processes from flooding. current operation is going on by digging wells in or out of the pit and pumping to prevent flooding. as a result of the former dewatering operation a vast deep cone of depressi...

Journal: :ارمغان دانش 0
نامدار یوسف وند n yousofvand مهناز قوسی m ghowsi علی پورمتعبد a pourmotabbed

background & aim: in some studies, changes in trace elements of abuse of addictive substances have been mentioned. due to the effects of trace elements on the immune system and their effects on susceptibility to infectious agents, the purpose of this study was to investigate the effect(s) of morphine dependency on the concentration of trace elements (copper, zinc and manganese) levels in serum ...

B. Joob, V. Wiwanitkit,

Sir, the big flooding in Thailand in 2011 is one of the problematic flooding in Asia. It causes several destroying to many things in the disaster areas. An important concern is on the effect on the setting with the radioactive elements usage. In Thailand, there are some places with radioactive elements including to the university, hospital as well as radioactive research center. Luckily, ...

Journal: :reports of biochemistry and molecular biology 0
nazila ariaee allergy research center, mashhad university of medical sciences, mashhad, iran reza farid allergy research center, mashhad university of medical sciences, mashhad, iran fahimeh shabestari allergy research center, mashhad university of medical sciences, mashhad, iran mohamad shabestari allergy research center, mashhad university of medical sciences, mashhad, iran farahzad jabbari azad tel: +98 51 38458769; fax: +98 51 38458769

background: asthma is a multifactorial disease and its severity varies with the inflammatory grade. there are conflicting reports about the roles of trace elements in asthma. this study examined the effects of zinc (zn), copper (cu), and selenium (se) concentrations in sera of patients with allergic asthma attending ghaem hospital, mashhad, iran. methods: forty-nine patients, aged 10 to 50 year...

Journal: :iranian journal of radiation research 0
m. ghorbani h. mozdarani dr. hossein mozdarani, school of medical sciences, tarbiat modarres university, p.o.box: 14115-111, tehran, i.r iran. fax: +98-21-8006544.

background: the method of proton induced x-ray emission (pixe) has been widely used as a sensitive technique to trace elemental analysis in both biological and medical fields. the sensitivity of this powerful method is in the order of ppm .the aim of this work is to analyze structural composition of 4 heavy trace elements with z greater than 24 (mn, fe, cu, zn) in two kinds of gallstones and to...

2009
M. J. Gázquez J. Mantero J. P. Bolívar R García-Tenorio F. Galán

The present study was focused to characterize the raw materials, wastes and several co-products from titanium dioxide industry, in particular their elemental composition (major, minor and trace elements), mineralogy, and radioactive contents, with the objective to apply this knowledge to valorize these materials in fields such as construction, civil engineering, fertilizers manufacturing, etc.

The present nuclear leakage crisis from Japan is a topic to be discussed in present public health. In radiology, the leaked radioactive elements are considered hazard. Here, the author briefly reviews and discusses on two important radio-hazard elements in post nuclear power plant crisis, radioactive iodine and radioactive cesium. Based on previous similar nuclear crisis in Russia, it ...

The vulnerability of water bodies to contamination within the neighbourhood of open mine cast environ cannot be overemphasized. Evidence of radioactive trace elements associated with the target minerals in the Plateau State (Nigeria) showed the extent of this vulnerability. In order to address this challenge, the radioactivity levels of water samples from mine ponds, streams, wells, and borehol...

Journal: :modares journal of medical sciences: pathobiology 2010
lida moghadam banaem elahe seddighi looye anoushirvan kazemnejad azam afshar

objective: considering the various evidences due to effects of trace elements on the outcome of pregnancy, we decided to assess the effect of these elements levels in maternal and cord serum on low birth weight. materials and methods: an analytical cross-sectional study was performed on 344 pregnant women in labour and their neonates in maryam, akbarabadi and vali-e-asr hospitals in tehran, ir...

Journal: :iranian journal of radiation research 0
k. moosavi van de graff laboratory, nuclear science research school, nuclear science and technology research institute (nstri), tehran, iran s. vatankhah van de graff laboratory, nuclear science research school, nuclear science and technology research institute (nstri), tehran, iran j. salimi vascular surgery department, sina hospital, tehran university of medical sciences, tehran, iran m. moradi van de graff laboratory, nuclear science research school, nuclear science and technology research institute (nstri), tehran, iran

background: proton induced x-ray emission (pixe) has been applied as reliable and improved techniques in this study to compare concentration of various trace elements in normal and abnormal varicose veins. materials and methods: five samples from normal veins and 13 samples from varicose veins bombarded by 2.0 mev energy proton beams produced by a van de graff accelerator in vacuum. two specime...

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