Results 81 to 90 of about 7,188,407 (346)

Comparative dosimetry for radon and thoron in high background radiation areas in China.

Radiation Protection Dosimetry, 2015
The present study focuses on internal exposure caused by the inhalation of radon and thoron progenies because the internal exposures have not yet been clarified.
H. Kudo, S. Tokonami, Y. Omori, T. Ishikawa, K. Iwaoka, S. Sahoo, N. Akata, M. Hosoda, P. Wanabongse, C. Pornnumpa, Q. Sun, X. Li, S. Akiba   +12 more
semanticscholar   +1 more source

Enhanced analysis of gating latency in 0.35T MR‐linac through innovative time synchronization of a motion phantom and plastic scintillation detector

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study aims to evaluate how different gantry angles, breathing rates (BPM), cine image speeds, and tracking algorithms affect beam on/off latency and the subsequent impact on target dose for a 0.35T MR‐Linac with a 6 MV FFF beam.
Mateb Al Khalifa, Tianjun Ma, Haya Aljuaid, Siyong Kim, William Y. Song   +4 more
wiley   +1 more source

The cosmic background radiation circa ν2K [PDF]

Nuclear Physics B - Proceedings Supplements, 2001
We describe the implications of cosmic microwave background (CMB) observations and galaxy and cluster surveys of large scale structure (LSS) for theories of cosmic structure formation, especially emphasizing the recent Boomerang and Maxima CMB balloon experiments.
Bond, J. R., Pogosyan, D., Prunet, S., collaboration, the MaxiBoom, Ade, P., Balbi, A., Bock, J., Borrill, J., Boscaleri, A., Coble, K., Crill, B., de Bernardis, P., Farese, P., Ferreira, P., Ganga, K., Giacometti, M., Hanany, S., Hivon, E., Hristov, V., Iacoangeli, A., Jaffe, A., Lange, A., Lee, A., Martinis, L., Masi, S., Mauskopf, P., Melchiorri, A., Montroy, T., Netterfield, B., Oh, S., Pascale, E., Piacentini, F., Rabii, B., Rao, S., Richards, P., Romeo, G., Ruhl, J., Scaramuzzi, F., Sforna, D., Smoot, G., Stompor, R., Winant, C., Wu, P.   +42 more
openaire   +3 more sources

UR‐cycleGAN: Denoising full‐body low‐dose PET images using cycle‐consistent Generative Adversarial Networks

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study aims to develop a CycleGAN based denoising model to enhance the quality of low‐dose PET (LDPET) images, making them as close as possible to standard‐dose PET (SDPET) images. Methods Using a Philips Vereos PET/CT system, whole‐body PET images of fluorine‐18 fluorodeoxyglucose (18F‐FDG) were acquired from 37 patients to ...
Yang Liu, ZhiWu Sun, HaoJia Liu
wiley   +1 more source

Entropy-Based Characterization of Internet Background Radiation

Entropy, 2014
Network security requires real-time monitoring of network traffic in order to detect new and unexpected attacks. Attack detection methods based on deep packet inspection are time consuming and costly, due to their high computational demands.
Félix Iglesias, Tanja Zseby
doaj   +1 more source

Radiotherapy medical physics in the Philippines: A contemporary overview

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose With cancer ranking as the third leading cause of death in the Philippines and a disparity in healthcare resources across regions, this research aimed to assess the state of radiotherapy medical physics in the country. Methodology The study utilized a comprehensive online survey with 94 structured questions answered by 19 clinics ...
John Paul C. Cabahug, Ramon Carlo Cruzpero, Luis E. Fong de los Santos, Eric C. Ford, Afua A. Yorke   +4 more
wiley   +1 more source

Simulation‐free workflow for lattice radiation therapy using deep learning predicted synthetic computed tomography: A feasibility study

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Lattice radiation therapy (LRT) is a form of spatially fractionated radiation therapy that allows increased total dose delivery aiming for improved treatment response without an increase in toxicities, commonly utilized for palliation of bulky tumors.
Libing Zhu, Nathan Y. Yu, Safia K. Ahmed, Jonathan B. Ashman, Diego Santos Toesca, Michael P. Grams, Christopher L. Deufel, Jingwei Duan, Quan Chen, Yi Rong   +9 more
wiley   +1 more source

Quantum limitations of distant radiating objects detection

Физика волновых процессов и радиотехнические системы, 2014
Weak electromagnetic signals from sufficiently distant sources reveal quantum properties. The latter ones result that detection of the sources becomes probabilistic.
A.L. Kurakin
doaj  

Glycosylation Gene Signatures as Prognostic Biomarkers in Glioblastoma

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Glioblastoma (GBM) is an aggressive brain tumor characterized by significant heterogeneity. This study investigates the role of glycosylation‐related genes in GBM subtyping, prognosis, and response to therapy. Methods We analyzed mRNA expression data and clinical information from The Cancer Genome Atlas (TCGA) and Gene Expression ...
Tong Zhao, Hongliang Ge, Chenchao Lin, Xiyue Wu, Jianwu Chen   +4 more
wiley   +1 more source

Suppression of Cucumber Powdery Mildew by Supplemental UV-B Radiation in Greenhouses Can be Augmented or Reduced by Background Radiation Quality.

Plant Disease, 2014
This study demonstrates that the spectral quality of radiation sources applied with ultraviolet-B (UV-B; background radiation) affects the suppression of cucumber powdery mildew (Podosphaera xanthii) by UV-B.
A. Suthaparan, A. Stensvand, K. Solhaug, S. Torre, K. H. Telfer, A. Ruud, L. Mortensen, D. Gadoury, R. Seem, H. Gislerød   +9 more
semanticscholar   +1 more source