نتایج جستجو برای: irradiation time

تعداد نتایج: 1946448  

Journal: :journal of lasers in medical sciences 0
yashar rezaei research center for biomedical and robotic technology, tehran university of medical sciences, tehran, iran department of dental materials, school of dentistry, tehran university of medical sciences, tehran, iran hossein bagheri research center for biomedical and robotic technology, tehran university of medical sciences, tehran, iran department of dental materials, school of dentistry, tehran university of medical sciences, tehran, iran maryam esmaeilzadeh general dentist, tehran, iran

introduction: although dental caries is a preventable disease, it is still common and remains a public health problem. one of the potentially effective preventive measures is the use of lasers. the purpose of this study was to review the studies about use of laser irradiation on the inhibition of carious lesions and the effectiveness of different commercial laser type (nd:yag, co2, and argon). ...

A Ale davood, M H Bahreyni-Toosi M H Zare, M T Shakeri, S Soudmand

Background and Objective: Multi-walled Carbon Nano Tubes (MWCNTs) as an important element of nanosciences have a remarkable absorption in the region of NIR window (650-900 nm) which can overcome the limitations of deep treatment in photothermal therapy. To disperse MWCNTs in water, it is proposed to attach carboxylated functional group (-COOH) to MWCNTs in order to increase dispersivity in wate...

Masoud Soleimani, Mina Jafarabadi, Mohammad Hossein Tahmasbi, Mohammad Shafiee, Mohammad Taghi Joghataei, Seyed Akbar Moosavi, Seyed Amir Yazdanparast,

The key role of chemokine receptor CXCR4 in the maintenance of stemness property of stem cells has been shown recently. The low level laser irradiation (LLLI) is being used currently in a wide variety of clinical cases as a therapeutic tool for wound healing, relieving pain and destroying tumor cells. The aim of this study was to evaluate the effect of LLLI mimicking low level laser therapy (LL...

2016
Jeongshim Lee Jaeho Cho Jong Hee Chang Chang-Ok Suh

PURPOSE The aim of this study was to evaluate the efficacy of re-irradiation in patients with recurrent gliomas and to identify subgroups for whom re-irradiation for recurrent gliomas is most beneficial. MATERIALS AND METHODS We retrospectively reviewed 36 patients with recurrent or progressive gliomas who received re-irradiation between January 1996 and December 2011. Re-irradiation was offe...

2014
Xiang-zhen Shen En-jie Diao Zheng Zhang Ning Ji Wen-wen Ma

A new experimental laboratory-scale photodegradation reactor has been developed to study the effects of UV-irradiation detoxification on physicochemical properties of peanut oil based on the photogradation efficiency of aflatoxin B1. The color, acid value, peroxide value, and unsaturated fatty acids were determined at different irradiation times (0, 5, 10, 20, and 40 min). The results showed th...

A.H. Barati, H.Mozdarani, M.Mokhtari -Dizaji, S.Z. Bathaei, Z.M.Hassan,

  ABSTRACTBackground : In order to quantify effects of ultrasound irradiation parameters under therapeutic condition, especially sonodynamic therapy, it is initially necessary to evaluate inertial cavitation activity in vitro conditions therefore, in this study, the effect of 1 MHz low level ultrasound based on °OH radicals generated by acoustic inertial cavitation in aqueous solution was monit...

Journal: :iranian journal of radiation research 0
b. chen faculty of medicine and health sciences, macquarie university, new south wales, australia z. zhao faculty of medicine and health sciences, macquarie university, new south wales, australia v. lee faculty of medicine and health sciences, macquarie university, new south wales, australia r. reddy faculty of medicine and health sciences, macquarie university, new south wales, australia m. stoodley faculty of medicine and health sciences, macquarie university, new south wales, australia

background: radiation-induced molecular changes on the endothelial surface of brain arteriovenous malformations (avm) may be used as markers for specific vascular targeting agents. in this study, we examined the level of expression of platelet endothelial cell adhesion molecule-1 (pecam-1) on brain endothelial cell surface after radiation treatment, with the aim of targeting the radiation-induc...

Chen Grang Liu Bin Tang Ying, Wu Ya

5(6)-Carboxy-rhodamine 110 isomers were rapidly synthesized by condensation of 3-aminophenol and trimellitic anhydride using microwave irradiation as heating method. After esterification of the two isomers, separation and hydrolyzation provided target products,5-carboxy-rhodamine 110 and 6-carboxy-rhodamine 110, in high yields. The results shows microwave irradiation can effectively reduce ...

Journal: :cell journal 0

objective: it has been suggested that the vascular endothelial growth factor (vegf) gene expression plays an important role in radiation-induced injury to the spinal cord. this study assesses the radioprotective effects of n-acetyl-5-methoxytryptamine (melatonin) through its modulation of vegf expression after localized irradiation of the cervical spinal cord. materials and methods: in this exp...

Ahmad Reza Yari, Aliakbar Roudbari, Allahbakhsh Javid,

Background & Aims of the Study Irradiation with ultraviolet light (UV) is used for the disinfection of bacterial contaminants in the production of potable water. The main objective of the study was to investigate and model Disinfection By-Products (DBPs) formation due to the UV Irradiation of the Tajan River water under different Irradiation conditions. Materials & Methods: &nbs...

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