Results 111 to 120 of about 4,225,714 (422)

Hazards protection for space suits and spacecraft [PDF]

, 1990
A flexible multi-layered covering article for protection against the hazards of exposure to the environment of outer space is disclosed. The covering includes an outer layer section comprising an outermost lamina of woven expanded tetrafluoroethylene ...
Dawn, Frederic S., Kosmo, Joseph J.
core   +1 more source

Position‐dependent offset corrections for ring applicator reconstruction in cervical cancer brachytherapy

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Due to the tight curvature in their design, ring applicators are usually associated with large positioning errors. The standard practice to correct for these deviations based on global offsets may not be sufficient to comply with the recommended tolerance.
Leon G. Aldrovandi, Matthias E. T. Dessein, Shelley M. Pearson, Shelley M. Bulling   +3 more
wiley   +1 more source

Cellular transport of uranium and its cytotoxicity effects on CHO-k1 cells

Ecotoxicology and Environmental Safety, 2022
Uranium is a radioactive heavy metal and a significant public health concern; however, its associated underlying toxicological mechanisms remain largely unknown.
Liqun Huang, Shufang Li, Wenhua Zhou, Jie Gao, Jingjing Yin, Zhongwen Wang, Jianguo Li   +6 more
doaj  

It Is Time to Move Beyond the Linear No-Threshold Theory for Low-Dose Radiation Protection

Dose-Response, 2018
The US Environmental Protection Agency (USEPA) is the primary federal agency responsible for promulgating regulations and policies to protect people and the environment from ionizing radiation.
J. Cardarelli, B. Ulsh
semanticscholar   +1 more source

Shielding resources for four common radiopharmaceuticals utilized for imaging and therapy: Tc‐99m, F‐18, I‐131, and Lu‐177

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Introduction The use of radioactive materials in the United States has been tightly regulated by the Nuclear Regulatory Commission and other entities for many decades. In 2015, however, the Joint Commission began to require hospital‐based nuclear medicine departments to conduct shielding designs and evaluations for radioactive material areas ...
Michael Oumano, Richard Wendt, James Botti, Nathan Busse, David Hintenlang, Stephanie Leon, Kevin Little, Melissa Martin, Richard Massoth, Kenneth Matthews, Rameshwar Prasad, Sharon White, Jessica Clements   +12 more
wiley   +1 more source

Integrative effects based on behavior, physiology and gene expression of tritiated water on zebrafish

Ecotoxicology and Environmental Safety, 2021
Tritium is a water-soluble hydrogen isotope that releases beta rays during decay. In nature, tritium primarily exists as tritiated water (HTO), and its main source is nuclear power/processing plants.
Shengri Li, Yefeng Zhang, Huiyuan Xue, Qixuan Zhang, Na Chen, Jun Wan, Liang Sun, Qiu Chen, Ying Zong, Fenghui Zhuang, Pengcheng Gu, Anqi Zhang, Fengmei Cui, Yu Tu   +13 more
doaj  

Radiation Protection Measures in Radio-Diagnostic Centers in Gaza Hospitals, Palestine [PDF]

, 2016
Whereas radio-diagnostic centers have potential to present hazardous effects due of ionizing radiation. Radio-diagnostic workers awareness, practices regarding radiation protection issues, availability of radiation protection devices and effective ...
Agha, Mohamed R. Al, Khadoura, Khalid Jamal, Yassin, Samir S., Zer, Samer S. Abu   +3 more
core   +2 more sources

Perspectives for electromagnetic radiation protection with MXenes

Carbon, 2022
Meikang Han, Y. Gogotsi
semanticscholar   +1 more source

Surface dose analysis and dosimetric comparison of Halcyon versus Truebeam in breast cancer radiotherapy: An OSL dosimetry study

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Breast cancer is a neoplastic disease with high prevalence among women. Radiotherapy is one of the principal treatment modalities for this disease, but it poses significant challenges. This study aimed to compare and evaluate the technical and dosimetric performance of conventional C‐arm linac systems and a new design, Halcyon, in the ...
Mustafa Çağlar, Kudret Akçay, Esra Serin, Dursun Eşitmez, Mehmet Sıddık Cebe, Navid Kheradmand, Ömer Yazıcı, Dilek Ünal, Evrim Metcalfe   +8 more
wiley   +1 more source

Investigation of the status of occupational radiation protection in Malawian hospital [PDF]

, 2018
BackgroundThe main objective of this study was to explore the occupational radiation protection program in three hospitals in Malawi and discover how radiation protection measures for workers are being implemented in their radiology departments.MethodA ...
Amoako, Joseph Kwabena, Chinangwa, Getrude, Fletcher, John Justice   +2 more
core   +2 more sources