Results 41 to 50 of about 2,327,610 (318)

Comparison of the Operator and Surrounding Dose When Using Portable Intraoral X-ray Devices

Applied Sciences
This study aimed to investigate the scattered radiation dose using three portable dental radiographic units: iRay D3, EZRay Air, and Epix. The absorbed dose was measured at 0.5 and 1 m distances, every 15° in the horizontal plane, using an ionization ...
Mehrdad Abdinian, Maedeh Aminian, Forouzan Keymasi, Parisa Soltani, Mariangela Cernera, Niccolo Giuseppe Armogida, Gianrico Spagnuolo   +6 more
doaj   +1 more source

Diagnostic Performance of Different Simulated Low-Dose Levels in Patients with Suspected Cervical Abscess Using a Third-Generation Dual-Source CT Scanner

Diagnostics, 2020
The aim of this study was to investigate the effects of dose reduction on diagnostic accuracy and image quality of cervical computed tomography (CT) in patients with suspected cervical abscess. Forty-eight patients (mean age 45.5 years) received a CT for
Moritz T. Winkelmann, Saif Afat, Sven S. Walter, Eva Stock, Vincent Schwarze, Andreas Brendlin, Manuel Kolb, Christoph P. Artzner, Ahmed E. Othman   +8 more
doaj   +1 more source

Influence of temperature and moisture on the mechanical properties of irradiated thermoplastics materials

MATEC Web of Conferences, 2017
This study deals with the effect of ionizing beta radiation on notch impact strength of polyamides filled with glass fiber under the influence of temperature and moisture.
Pavel Stoklasek, Martin Bednarik
doaj   +1 more source

The radiation protection role of heparin-SOD conjugate in irradiated mice

Brazilian Journal of Pharmaceutical Sciences, 2018
Heparin-SOD conjugate (Hep-SOD) was prepared by modifying Cu,Zn-SOD with heparin. An acute radiation-induced mouse injury model was constructed to study the radiation protection effects of Hep-SOD conjugate.
Chuanqing Zhong, Xiaojing Huang, Shu Zhang, Yanna Cheng, Guangxiang Cao, Fengshan Wang   +5 more
doaj   +1 more source

Dosimetry of Occupational Radiation around Panoramic X-ray Apparatus [PDF]

Journal of Biomedical Physics and Engineering, 2019
Background: Panoramic imaging is one of the most common imaging methods in dentistry. Regarding the side-effects of ionizing radiation, it is necessary to survey different aspects and details of panoramic imaging.
A H Pakravan, S M R Aghamiri, T Bamdadian, M Gholami, M Moshfeghi   +4 more
doaj   +1 more source

Practical Approach to Reducing Patients' Radiation Dose in Multidetector Computed Tomography-128 Using Modification of Scan Parameters

مجله دانشکده پزشکی اصفهان, 2020
Background: There is a close relationship between the radiation dose and the image quality; so that increasing the radiation dose leads to an increase in the image quality.
Mohammad Reza Choopani, Iraj Abedi, Maedeh Mahmoodi, Jalal Bagheri   +3 more
doaj   +1 more source

Change of notch impact strength depending on radiation dose and test temperature

MATEC Web of Conferences, 2017
The main purpose of this paper has been determine the effect of radiation crosslinking on the notch impact strength of polyamides filled with fiberglass.
Martin Bednarik, Pavel Stoklasek
doaj   +1 more source

The role of histone modifications in transcription regulation upon DNA damage

FEBS Letters, EarlyView.
This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley   +1 more source

Influence of Contrast Agent Injection Scheme Customized by Dual-Source CT Based on Automatic Tube Voltage Technology on Image Quality and Radiation Dose of Coronary Artery Imaging

Frontiers in Surgery, 2022
ObjectiveTo explore the influence of a contrast agent injection scheme customized by dual-source CT based on automatic tube voltage technology on coronary imaging image quality and radiation dose.MethodsA total of 205 patients who underwent coronary CT ...
Weiling He, Xin Chen, Rui Hu, Wenjie Sun, Weili Tan   +4 more
doaj   +1 more source

COVID-19 Tragic Pandemic: Concerns over Unintentional “Directed Accelerated Evolution” of Novel Coronavirus (SARS-CoV-2) and Introducing a Modified Treatment Method for ARDS [PDF]

Journal of Biomedical Physics and Engineering, 2020
Global health authorities are trying to work out the current status of the novel coronavirus (COVID-19) outbreak and explore methods to reduce the rate of its transmission to healthy individuals.
A Ghadimi-Moghadam, M Haghani, J J Bevelacqua, A Jafarzadeh, A Kaveh-Ahangar, S M J Mortazavi, A Ghadimi-Moghadam, S A R Mortazavi   +7 more
doaj   +1 more source