Results 31 to 40 of about 194,970 (290)

Ultra-high dose rate effect on circulating immune cells: A potential mechanism for FLASH effect? [PDF]

Radiother Oncol, 2020
Purpose “FLASH” radiotherapy (RT) is a potential paradigm-changing RT technology with marked tumor killing and normal tissue sparing. However, the mechanism of the FLASH effect is not well understood.
Jin JY, Gu A, Wang W, Oleinick NL, Machtay M, Spring Kong FM.   +5 more
europepmc   +2 more sources

FLASH radiotherapy: Research process from basic experimentation to clinical application

Precision Radiation Oncology, 2021
FLASH radiotherapy (FLASH‐RT) has gained attention as an ultra‐high dose rate RT in recent years. This treatment significantly shortens the time of RT and reduces the influence of tumor movement caused by breathing or other factors.
Xiaohui Wang, Hui Luo, Xiaoli Zheng, Hong Ge   +3 more
doaj   +1 more source

The attentional modulation of the flash-lag effect [PDF]

Brazilian Journal of Medical and Biological Research, 2002
If a dot is flashed in perfect alignment with a pair of dots rotating around the visual fixation point, most observers perceive the rotating dots as being ahead of the flashing dot (flash-lag effect). This perceptual effect has been interpreted to result from the perceptual extrapolation of the moving dots, the differential visual latencies between ...
Baldo, M.V.C., Namba, J.
openaire   +4 more sources

Simple movement imitation: Are kinematic features sufficient to map perceptions into actions? [PDF]

, 2009
The aim of this study was to pinpoint the nature of the visual features used in the automatic mapping of perceived movements into similar executed movements, following the direct matching hypothesis.
FLASH T., NOY L, Rumiati, Raffaella
core   +1 more source

Ultra-High Dose Rate FLASH Irradiation Induced Radio-Resistance of Normal Fibroblast Cells Can Be Enhanced by Hypoxia and Mitochondrial Dysfunction Resulting From Loss of Cytochrome C

Frontiers in Cell and Developmental Biology, 2021
Ultra-high dose rate FLASH irradiation (FLASH-IR) has got extensive attention since it may provide better protection on normal tissues while maintain tumor killing effect compared with conventional dose rate irradiation.
Jintao Han, Zhusong Mei, Chunyang Lu, Jing Qian, Yulan Liang, Xiaoyi Sun, Zhuo Pan, Defeng Kong, Shirui Xu, Zhipeng Liu, Ying Gao, Guijun Qi, Yinren Shou, Shiyou Chen, Zhengxuan Cao, Ye Zhao, Chen Lin, Yanying Zhao, Yixing Geng, Jiaer Chen, Xueqing Yan, Xueqing Yan, Wenjun Ma, Gen Yang   +23 more
doaj   +1 more source

Effects of Proprioceptive Processing on the Illusory Flash-Lag Effect in Motion and Luminance Change

i-Perception, 2011
Observer's active control of visual stimulus movement by the use of computer mouse reduces the flash-lag effect (Ichikawa & Masakura, 2006, Vision Research).
Makoto Ichikawa, Yuko Masakura
doaj   +1 more source

Effect of oxygen and nanoparticles on human skin and colon cells exposed to synchrotron-based X-ray FLASH beams

Journal of Synchrotron Radiation
FLASH radiotherapy involves delivering relatively high radiation doses at ultra-high dose rates (UHDRs) that are several orders of magnitude greater than those used in conventional radiotherapy (40 Gy s−1 versus 0.5–5 Gy min−1, respectively). Previous in
Moshi Geso, Matthew Cameron, Tom Ffrench, Helen Forrester, Rod Lynch, Masao Nakayama, William Patterson, Wan Nordiana Rahman, Duncan Butler, Terrence J. Piva   +9 more
doaj   +1 more source

The dresden platform is a research hub for ultra-high dose rate radiobiology

Scientific Reports, 2023
The recently observed FLASH effect describes the observation of normal tissue protection by ultra-high dose rates (UHDR), or dose delivery in a fraction of a second, at similar tumor-killing efficacy of conventional dose delivery and promises great ...
Josefine Metzkes-Ng, Florian-Emanuel Brack, Florian Kroll, Constantin Bernert, Stefan Bock, Elisabeth Bodenstein, Michael Brand, Thomas E. Cowan, René Gebhardt, Stefan Hans, Uwe Helbig, Felix Horst, Jeannette Jansen, Stephan D. Kraft, Mechthild Krause, Elisabeth Leßmann, Steffen Löck, Jörg Pawelke, Thomas Püschel, Marvin Reimold, Martin Rehwald, Christian Richter, Hans-Peter Schlenvoigt, Ulrich Schramm, Michael Schürer, Joao Seco, Emília Rita Szabó, Marvin E. P. Umlandt, Karl Zeil, Tim Ziegler, Elke Beyreuther   +30 more
doaj   +1 more source

An empirical explanation of the flash-lag effect [PDF]

Proceedings of the National Academy of Sciences, 2008
When a flash of light is presented in physical alignment with a moving object, the flash is perceived to lag behind the position of the object. This phenomenon, known as the flash-lag effect, has been of particular interest to vision scientists because of the challenge it presents to understanding how the visual system generates ...
William T, Wojtach, Kyongje, Sung, Sandra, Truong, Dale, Purves   +3 more
openaire   +2 more sources

Explaining the FLASH Effect: Investigating the Oxygen Hypothesis of the Proton FLASH Effect in Zebrafish [PDF]

, 2022
This thesis investigates the tissue sparing effect of FLASH (>40 Gy/s) radiation, as opposed to CONV (conventional, dose rates typically between 0.01­0.1 Gy/s) radiation. We irradiated zebrafish embryos (4 days past fertilisation) with 116 MeV protons.
de Groot, Chiel (author)
core