Results 71 to 80 of about 350,193 (214)

Log file‐based quality assurance method for respiratory gating system

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background As medical linear accelerator technology advances, enabling higher dose rate deliveries, hypofractionation regimens has increased. This necessitates respiratory gating systems that synchronize radiation delivery with tumor position, requiring simple rigorous quality assurance (QA) to ensure treatment accuracy and patient safety ...
Wonjoong Cheon, Young Kyu Lee, Yunji Seol, Chan‐beom Park, Hong Qi Tan, Kyu Hye Choi, Young‐nam Kang, Byung Ock Choi   +7 more
wiley   +1 more source

New Constraints on the Escape of Ionizing Photons From Starburst Galaxies Using Ionization-Parameter Mapping

, 2013
The fate of ionizing radiation in starburst galaxies is key to understanding cosmic reionization. However, the galactic parameters on which the escape fraction of ionizing radiation depend are not well understood.
McDonald, Michael, Oey, M. S., Veilleux, Sylvain, Zastrow, Jordan   +3 more
core   +1 more source

Machine stability and dosimetry for ultra‐high dose rate FLASH radiotherapy human clinical protocol

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background The FLASH effect, induced by ultra‐high dose rate (UHDR) irradiations, offers the potential to spare normal tissue while effectively treating tumors. It is important to achieve precise and accurate dose delivery and to establish reliable detector systems, particularly for clinical trials needed to help the clinical transfer of FLASH‐
Patrik Gonçalves Jorge, Reiner Geyer, Rémy Kinj, Luis Schiappacasse, Wendy Jeanneret‐Sozzi, Jean Bourhis, Fernanda Herrera, François Bochud, Claude Bailat, Raphaël Moeckli   +9 more
wiley   +1 more source

Accounting for TLD response to CBCT protocols in external beam radiotherapy dose monitoring

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose LiF thermoluminescent dosimeters (TLDs) are commonly used in radiation therapy to verify the delivered dose. Examples include dose verification for complicated treatment setups or cardiovascular implantable electronic devices (CIEDs). TLDs may be present for both the pre‐treatment imaging kilovoltage (kV) beam and the megavoltage (MV ...
Andrew J. White, Cliff G. Hammer, Matthew W. Brenner, Larry A. DeWerd, Kurt E. Stump, Wesley S. Culberson   +5 more
wiley   +1 more source

Energy dependence of the GAFCHROMIC LD‐V1 in the diagnostic radiographic modalities

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract The GAFCHROMIC LD‐V1 radiochromic film is widely used in dosimetry because it can provide high‐resolution two‐dimensional dose distributions without processing. This study aimed to evaluate the response characteristics at different effective energies, from the low‐energy range of mammography to the high‐energy range of computed tomography. Net
Tatsuhiro Gotanda, Tomoyuki Hasuo, Shinnosuke Nishihara, Kohsei Matsuura, Yasuyuki Kawaji, Hidetoshi Yatake, Shinya Imai, Takuya Akagawa, Nobuyoshi Tanki, Toshizo Katsuda   +9 more
wiley   +1 more source

Traditional Chinese medicine for the treatment of chronic inflammatory diseases: A review of inhibitors for NLRP3 inflammasome

Advanced Chinese Medicine, Volume 2, Issue 1, Page 1-12, March 2025.
Abstract The NLR family pyrin domain‐containing 3 (NLRP3) inflammasome is a vital part of the innate immune response, whilst its aberrant activation drives the progression of several noncommunicable diseases. It induces caspase‐1 activation and the downstream substrates involved with the processing and secretion of the pro‐inflammatory cytokines IL‐1β ...
Yucen Zou, Pei Ma, Bin Li, Jiushi Liu, Lifeng Yue, Bengang Zhang, Haitao Liu   +6 more
wiley   +1 more source

Modelling radiation-induced cell cycle delays

, 2009
Ionizing radiation is known to delay the cell cycle progression. In particular after particle exposure significant delays have been observed and it has been shown that the extent of delay affects the expression of damage such as chromosome aberrations ...
AD Virgilio, Anna Ochab-Marcinek, B Basse, E Erba, E Gudowska-Nowak, Elena Nasonova, Ewa Gudowska-Nowak, F Montalenti, FA Cucinotta, G Kaufman, G Wilson, L Li, M Kohandel, M Scholz, M Scholz, M Scholz, M Zaider, N Hartmann, P Flatt, P Hahnfeldt, R Lee, R Mateuca, R Pathak, R Purrot, S Engen, S Ritter, S Ritter, S Tenhumberg, Sylvia Ritter, T Groesser, U Amaldi, W Chaung, W Feller, W Weyrather, WK Sinclair   +34 more
core   +1 more source

Novel Biologically Active Glass Fiber Functionalized Using Magnesium Phosphate Cement Promotes Bone and Vascular Regeneration

Advanced Biology, EarlyView.
In this study, a new type of bioactive glass fiber ‐based composite magnesium phosphate bone cement is prepared and verified that its mechanical strength and biological properties. In addition, the cement may have played a biologically active role in the Notch and HIF signaling pathways.
Yuzheng Lu, Yanbo Shan, Yingjie Xiong, Jianting Ye, Yanbin Wu, Jipeng Song, Yao Zhang, Wancheng Lin, Haoye Meng, Wenjing Xu, Jiang Peng, Qiang Lu, Lixiang Ding   +12 more
wiley   +1 more source

Evolution of a hot primordial gas in the presence of an ionizing ultraviolet background: instabilities, bifurcations, and the formation of Lyman limit systems [PDF]

arXiv, 1997
The time evolution of thermal and thermo-reactive instabilities of primordial gas in the presence of ionizing UV radiation is studied. We obtain conditions (depending on density, temperature, and UV radiation intensity) favorable for the formation of a multi-component medium.
arxiv  

The Regulation of Trace Metal Elements in Cancer Ferroptosis

Advanced Biology, EarlyView.
The induction of ferroptosis inhibits tumor growth, enhances anticancer efficacy, and overcomes drug resistance. Recent evidence shows nonferrous metal elements play a role in ferroptosis. This review focuses on how trace metals regulate ferroptosis processes like iron accumulation, lipid peroxidation, and antioxidant defense.
Xiaoyan Wang, Yuanyuan Xue, Lei Chang, Xuena Zhu, Wenjun Liu, Tingbo Liang   +5 more
wiley   +1 more source