نتایج جستجو برای: ionizing radiation computed x

تعداد نتایج: 947884  

Alireza Khoshbin Khoshnazar , Esmaeil Samadian, Hamid Haghighatfard, Sahar Alijanpour , Seyed Hossein Sadeghi, Seyed Mostafa Mir ,

Background and Objective: The cell division cycle 25 (CDC25)is a familyof highly conserved dual-specificity phosphatases that activate cyclin-dependent kinase complexes. These complexes are the main cell cycle regulators. Mammalian cells ,exposure to DNA damaging radiations such as ionizing radiation and ultraviolet light, prevent cell cycle progression by activation of checkpoint pathways an...

Journal: :Journal of Ayub Medical College, Abbottabad : JAMC 2008
Syed Mohammed Mubeen Qamar Abbas Nighat Nisar

BACKGROUND The majority of patients remain concerned about radiation exposure and the health risk associated to it. A doctor is a person who can answer all pertinent questions regarding radiation and can satisfy their patients. Medical students, who are future doctors, can acquire this capability during their clinical rotation in the radiology department. The study is to assess knowledge, hazar...

Journal: :international journal of agricultural science, research and technology in extension and education systems 2012
ali benjavad talebi amin benjavad talebi

the purpose of the research was determine the effects of gamma ray on seed germination, seedling height and root length of rice (oryza sativa l. spp. indica cv. mr219) to identify the lethal dosage of the radiation. paddy seeds of mr219 were exposed to different doses of gamma radiations viz 50,100,150,200,250,300,350,400,450,500,600,700,800,900 and 1000 gy using 60co as the radiation source. t...

Journal: :iranian journal of radiation research 0
h.e. alkis department of radiation oncology, gaziantep university, medical school, gaziantep, turkey abdurahman kuzhan department of radiation oncology, gaziantep university, medical school, gaziantep, turkey a. dirier department of radiation oncology, gaziantep university, medical school, gaziantep, turkey m. tarakcioglu department of biochemistry and clinical biochemistry, gaziantep university, medical school, gaziantep, turkey e. demir department of biochemistry and clinical biochemistry, gaziantep university, medical school, gaziantep, turkey e. saricicek department of biochemistry, dr. ersin arslan state hospital, gaziantep, turkey

background: our purpose was to investigate propolis and its component caffeic acid phenethyl ester (cape) for their antioxidant effects on the brain tissue of rats exposed to ionizing radiation (ir). materials and methods: fifty-four male albino sprague-dawley rats, divided into six groups, were designed as normal control group, cranial irradiation of 5 gray alone, irradiation plus cape, irradi...

2017
Julia D. Zavariz Eleni Konstantatou Annamaria Deganello Diana Bosanac Dean Y. Huang Maria E. Sellars Paul S. Sidhu

The characterization of focal splenic lesions by ultrasound can be quite challenging. The recent introduction of contrast-enhanced ultrasound (CEUS) has come to play a valuable role in the field of imaging splenic pathologies, offering the possibility of an ionizing radiation-free investigation. Because CEUS has been incorporated into everyday clinical practice, malignant diseases such as focal...

2014
Igor Yakymenko Evgeniy Sidorik Diane Henshel Sergiy Kyrylenko

Radiofrequency radiation (RFR), e.g. electromagnetic waves emitted by our cell phones and Wi-Fi, are referred to as non-ionizing. This means that in contrast to the ionizing radiation, which does induce ionization of water and biologically important macromolecules, RFR does not have a capacity for such effects. Unlike, for example X-rays, the energy of RFR is not enough to break electrons off t...

Maryam Ameriyan, Mohadese Soleimani, Mohsen Shoja, Niloufar Asbaghipour, Peyman Hejazi Hejazi,

Background: Today, with the increasing use of ionizing radiation like X-rays in diagnosis and treatment of diseases, the risk of fetal exposure in pregnant women also increases. Therefore, protecting pregnant women from ionizing radiation is essential and is considered as the standard criterion for Medical Radiation Center. So the aim of this study was to investigate the observance of protectiv...

Journal: :Arhiv za higijenu rada i toksikologiju 1998
V Kasuba R Rozgaj K Sentija

The decrease of unstable chromosomal damages (dicentrics, rings and acentric fragments) was observed in circulating peripheral blood lymphocytes after exposure to ionizing radiation. The study comprised 100 subjects, all medical staff occupationally exposed to X-rays, who were re-examined for unstable chromosomal aberrations after 3 months (12 subjects), 6 months (31 subjects), 9 months (13 sub...

Journal: :Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine 2003
Peter Gehringer Helmut Eschweiler Hermann Leth Walter Pribil Silvia Pfleger Alexander Cabaj Thomas Haider Regina Sommer

Inactivation of the bacteriophages PHI X 174 (somatic coliphage), MS2 (F-specific coliphage) and B40-8 (phage infecting Bacteroides fragilis) suspended in tap water was studied applying gamma and electron beam irradiation as well. PHI X 174 phage was found to be a suitable viral indicator for water disinfection by means of ionizing radiation. The nutrient broths introduced simultaneously with t...

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