نتایج جستجو برای: ionizing myrtus radiation

تعداد نتایج: 241009  

Journal: :journal of biomedical physics and engineering 0
a haghnegahdar h khosrovpanah a andisheh-tadbir gh mortazavi m saeedi moghadam smj mortazavi

background : effects of electromagnetic fields on healing have been investigated for centuries. substantial data indicates that exposure to electromagnetic field can lead to enhanced healing in both soft and hard tissues. helmholtz coil is a device that generates pulsed electromagnetic fields. objective : in this study, a pair of helmholtz coils for enhancing the healing process in periodontiti...

ذبیح‌زاده, منصور, کرمی, وحید,

Discovery of x-ray and using of it for medical imaging have produced tremendous outcomes for diagnosis and treatment of diseases. More than 10 million diagnostic radiological procedures and 100,000 nuclear medicine exams are being performed daily around the world. According to the national commission on radiological protection and measurements (NCRP)-report 160, medical x-ray is contribute to a...

Journal: :The Yale Journal of Biology and Medicine 1957
Ernest Pollard

Several attempts have been made to use ionizing radiation as a means of inactivating viruses so that they can be employed as killed vaccines. Success has been achieved with a rabies virus, and trials have also been made with poliomyelitis virus.""7 These methods have not been used for practical purposes, partly because of their novelty, because of the expense in the original setting up of the e...

Background: Ionizing and non-ionizing radiation are widely used in the diagnosis and treatment of diseases. Considering the potential risks of radiation, radiation safety training courses are important for medical staff.  Objective: The aim of this study was to investigate the effectiveness of one-day radiation safety training program in increasing the radiation safety knowledge of physicians....

Journal: :Current opinion in microbiology 2008
Ekaterina Dadachova Arturo Casadevall

Life on Earth has always existed in the flux of ionizing radiation. However, fungi seem to interact with the ionizing radiation differently from other inhabitants of the Earth. Recent data show that melanized fungal species like those from Chernobyl's reactor respond to ionizing radiation with enhanced growth. Fungi colonize space stations and adapt morphologically to extreme conditions. Radiat...

Journal: :iranian biomedical journal 0
سوسن کبودانیان اردستانی sussan ardestani k مهرعلی محمود جانلو mehrali mahmood janlow عفت سوری efaht souri آمینا کریمی نیا amina karimiania

in order to find a prophylactic supplementation for individuals who are at risk of exposure to ionizing radiation, we attempted to evaluate the effect of vitamin e (vit-e), a biological free radical scavenger, on restoration of hepatic lipid peroxidation (lpo) and lipid profile (lp) changes induced by sublethal g- radiation in balb/c mice. the concentrations of cholesterol and phospholipid were...

Journal: :research in cardiovascular medicine 0
ahmad bitarafan rajabi department of nuclear medicine, rajaie cardiovascular, medical and research center, iran university of medical sciences, tehran, ir iran feridoun noohi cardiovascular intervention research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran hassan hashemi noor ophthalmology research center, noor eye hospital, tehran, ir iran; noor ophthalmology research center, noor eye hospital, tehran, ir iran. tel: +98-2188651515, fax: +98-2188651514 majid haghjoo cardiac electrophysiology research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran mohammad miraftab noor ophthalmology research center, noor eye hospital, tehran, ir iran nahid yaghoobi department of nuclear medicine, rajaie cardiovascular, medical and research center, iran university of medical sciences, tehran, ir iran

results the electrophysiology laboratory staff received higher doses of ionizing radiation (17.2 ± 11.9 msv; p < 0.001). there was a significant positive correlation between the years of working experience and effective dose in the lens (p < 0.001). in general, our findings showed that the incidence of lens opacity was 79% (95% ci, 69.9-88.1) in participants with exposure (the case group) and o...

Journal: :Applied and environmental microbiology 2005
Fred A Rainey Keren Ray Margarida Ferreira Bridget Z Gatz M Fernanda Nobre Danielle Bagaley Brian A Rash Mie-Jung Park Ashlee M Earl Nicole C Shank Alanna M Small Margaret C Henk John R Battista Peter Kämpfer Milton S da Costa

The ionizing-radiation-resistant fractions of two soil bacterial communities were investigated by exposing an arid soil from the Sonoran Desert and a nonarid soil from a Louisiana forest to various doses of ionizing radiation using a (60)Co source. The numbers of surviving bacteria decreased as the dose of gamma radiation to which the soils were exposed increased. Bacterial isolates surviving d...

2012
Laura Ghisolfi Andrew C. Keates Xingwang Hu Dong-ki Lee Chiang J. Li

The cancer stem cell (CSC) model posits the presence of a small number of CSCs in the heterogeneous cancer cell population that are ultimately responsible for tumor initiation, as well as cancer recurrence and metastasis. CSCs have been isolated from a variety of human cancers and are able to generate a hierarchical and heterogeneous cancer cell population. CSCs are also resistant to convention...

Journal: :The Journal of the American Osteopathic Association 2014
Doran M Christensen Gordon K Livingston Stephen L Sugarman Steven J Parillo Erik S Glassman

Ionizing radiation exposure can induce profound changes in intracellular components, potentially leading to diverse health effects in exposed individuals. Any cellular component can be damaged by radiation, but some components affect cellular viability more profoundly than others. The ionization caused by radiation lasts longer than the initial inciting incident, continuing as 1 ionization inci...

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