Zobrazeno 1 - 10
of 91
pro vyhledávání: '"Takeshi Kai"'
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-8 (2022)
Abstract Magnetic resonance-guided radiotherapy (MRgRT) has been developed and installed in recent decades for external radiotherapy in several clinical facilities. Lorentz forces modulate dose distribution by charged particles in MRgRT; however, the
Externí odkaz:
https://doaj.org/article/6ed63b4aac6e431eae1870df82efca02
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
Abstract A novel transport algorithm performing proton track-structure calculations in arbitrary materials was developed. Unlike conventional algorithms, which are based on the dielectric function of the target material, our algorithm uses a total st
Externí odkaz:
https://doaj.org/article/df1687026d0f41b2897a5a3aaa1ccc3d
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-2 (2023)
Externí odkaz:
https://doaj.org/article/da459c6e5c694e77a6097d1beb6af3ff
Publikováno v:
International Journal of Molecular Sciences, Vol 24, Iss 2, p 1386 (2023)
Complex DNA double-strand break (DSB), which is defined as a DSB coupled with additional strand breaks within 10 bp in this study, induced after ionizing radiation or X-rays, is recognized as fatal damage which can induce cell death with a certain pr
Externí odkaz:
https://doaj.org/article/2a298784034c48d8be2003699efe46eb
Autor:
Yusuke Matsuya, Toshiaki Nakano, Takeshi Kai, Naoya Shikazono, Ken Akamatsu, Yuji Yoshii, Tatsuhiko Sato
Publikováno v:
International Journal of Molecular Sciences, Vol 21, Iss 5, p 1701 (2020)
Complex DNA damage, defined as at least two vicinal lesions within 10−20 base pairs (bp), induced after exposure to ionizing radiation, is recognized as fatal damage to human tissue. Due to the difficulty of directly measuring the aggregation of DN
Externí odkaz:
https://doaj.org/article/a91e0e1fed86497896a4c4e4c2dc62d8
Autor:
Takeshi Kai, Tomohiro Toigawa, Yusuke Matsuya, Yuho Hirata, Tomoya Tezuka, Hidetsugu Tsuchida, Akinari Yokoya
Publikováno v:
RSC Advances. 13:7076-7086
For water radiolysis, conventional simulation methods estimate free radical yields based on the cross-sections. Our results indicated that electron dynamic motion must be further solved to predict the initial yields of hydrated electrons.
Autor:
Yusuke Matsuya, Takeshi Kai, Tatsuhiko Sato, Tatsuhiko Ogawa, Yuho Hirata, Yuji Yoshii, Alessio Parisi, Thiansin Liamsuwan
Publikováno v:
International Journal of Radiation Biology. 98:148-157
In radiation physics, Monte Carlo radiation transport simulations are powerful tools to evaluate the cellular responses after irradiation. When investigating such radiation-induced biological effects, it is essential to perform track structure simula
Autor:
Takeshi Kaizuka, Takehiro Suzuki, Noriyuki Kishi, Kota Tamada, Manfred W. Kilimann, Takehiko Ueyama, Masahiko Watanabe, Tomomi Shimogori, Hideyuki Okano, Naoshi Dohmae, Toru Takumi
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-17 (2024)
Abstract Postsynaptic proteins play crucial roles in synaptic function and plasticity. During brain development, alterations in synaptic number, shape, and stability occur, known as synapse maturation. However, the postsynaptic protein composition ch
Externí odkaz:
https://doaj.org/article/6f5fb2950d1a4074bc884f6b375b37fc
Autor:
Kenji Shu, Kyohei Yamada, Kaori Hashidate, Akira Ishida, Toshio Namba, Shoji Asai, Makoto Kuwata-Gonokami, Yohei Tajima, Eunmi Chae, Kosuke Yoshioka, Nagayasu Oshima, Brian E. O’Rourke, Koji Michishio, Kenji Ito, Kazuhiro Kumagai, Ryoichi Suzuki, Shigeru Fujino, Toshio Hyodo, Izumi Mochizuki, Ken Wada, Takeshi Kai
Publikováno v:
JJAP Conference Proceedings. 9:011202-011202
Publikováno v:
Japanese Journal of Applied Physics. 61:106004
In order to elucidate the mechanism of radiation effects in silicon (Si) devices, such as pulse-height defects and semiconductor soft errors, we developed an electron track-structure model dedicated to Si and implemented it into particle and heavy io