Papers - KODERA Sachiko
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Estimation of number of heatstroke patients with ambient temperature and solar radiation Reviewed
T. Matsuura, S. Kodera, A. Hirata
EMC JAPAN/APEMC OKINAWA 2024.05
Language：English Publishing type：Research paper (international conference proceedings)
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Evaluation of absorbed power density for complex surface Reviewed
S. Kodera, K. Kinoshita, A. Hirata
EMC JAPAN/APEMC OKINAWA 2024.05
Authorship：Lead author Language：English Publishing type：Research paper (international conference proceedings)
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28GHz人体背部ばく露による体温上昇解析 Reviewed
木下 晃太朗，増田 宏，小寺 紗千子
電子情報通信学会論文誌Cショートノート 2024.05
Authorship：Last author, Corresponding author Language：Japanese Publishing type：Research paper (scientific journal)
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Core temperature rise for whole-body exposure in GHz band at different ambient temperature
R. Okuda, S. Kodera, A. Hirata
EMC JAPAN/APEMC OKINAWA 2024.05
Language：English Publishing type：Research paper (international conference proceedings)
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Projection of future heat-related morbidity in three metropolitan prefectures of Japan based on large ensemble simulations of climate change under 2°C global warming scenarios Reviewed
H. Ueta, S. Kodera, S. Sugimoto, A. Hirata
Environmental Research 247 118202 2024.04
Language：English Publishing type：Research paper (scientific journal)
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Compliance assessment of the spatial averaging method for magnetic field leakage from a wireless power transfer system in electric vehicles Invited Reviewed
M. Okada, K. Miwa, S. Kodera, A. Hirata
Applied Sciences 14 ( 7 ) 2672 2024.03
Language：English Publishing type：Research paper (scientific journal)
DOI： 10.3390/app14072672
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Sensitivity of electrocardiogram on electrode-pair locations for wearable devices: Computational analysis of amplitude and waveform distortion Reviewed
K. Sanjo, K. Hebiguchi, C. Tang, E. A. Rashed, S. Kodera, H. Togo, A. Hirata
Biosensors 14 ( 3 ) 153 2024.03
Language：English Publishing type：Research paper (scientific journal)
DOI： 10.3390/bios14030153
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Individual and group-level optimization of electric field in deep brain region during multichannel transcranial electrical stimulation Reviewed
H. Nishimoto, S. Kodera, N. Otsuru, and A. Hirata
Frontiers in Neuroscience 18 1332135 2024.03
Language：English Publishing type：Research paper (scientific journal)
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The thermal sensation threshold and its reliability induced by the exposure to 28 GHz millimeter-wave Reviewed
A. Yuasa, S. Uehara, K. Ushizawa, S. Kodera, N. Arai, A. Hirata, Y. Otaka
Frontiers in Neuroscience 18 1331416 2024.02
Language：English Publishing type：Research paper (scientific journal)
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High-resolution EEG source localization in personalized segmentation-free head model with multi-dipole fitting Reviewed
A. Hirata, M. Niitsu, C. R. Phang, S. Kodera, T. Kida, E. A. Rashed, M. Fukunaga, N. Sadato, and T. Wasaka
Physics in Medicine & Biology 69 ( 5 ) 055013 2024.02
Language：English Publishing type：Research paper (scientific journal)
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Spatially averaged epithelial/absorbed power density for nonplanar skin models exposed to antenna at 10–90 GHz Reviewed International coauthorship
K. Li, S. Kodera, D. Poljak, Y. Diao, K. Sasaki, S. Zhang, M. Yao, A. Kapetanovic, C. Li, T. Wu, T. Liebig, W. Simon, A. Hirata
IEEE Access 2024.01
Language：English Publishing type：Research paper (scientific journal)
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Estimating the perception threshold of electrostimulation and heating for radiofrequency contact current (in press) Reviewed
S. Kodera, S. Kimura, S. Uehara, A. Yuasa, K. Ushizawa, Y. Otaka, A. Hirata
IEEE Transactions on Electromagnetic Compatibility 2024
Authorship：Lead author, Corresponding author Language：English Publishing type：Research paper (scientific journal)
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Wireless power transfer systems with composite cores for magnetic field shielding with electric vehicles Reviewed International coauthorship
X. Duan, J. Lan, S. Kodera, J. Kirchner, G. Fischer, A. Hirata
IEEE Access 11 144887 - 144901 2023.12
Language：English Publishing type：Research paper (scientific journal)
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核白内障における環境温度の変化に伴う水晶体中ミトコンドリア機能について
武田 峻, 山本 直樹, 初坂 奈津子, 平松 範子, 長井 紀章, 出口 粧央里, 中澤 洋介, 高田 匠, 小寺 紗千子, 平田 晃正, 久保 江理, 佐々木 洋
金沢医科大学雑誌 48 ( 2 ) 89 - 89 2023.12
Language：Japanese Publisher：金沢医科大学医学会
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Association of nuclear cataract prevalence with UV radiation and heat load in lens of older people -five city study-
Kotaro Kinoshita, Sachiko Kodera, Natsuko Hatsusaka, Ryusuke Egawa, Hiroyuki Takizawa, Eri Kubo, Hiroshi Sasaki, Akimasa Hirata
Environmental Science and Pollution Research 30 ( 59 ) 123832 - 123842 2023.11
Publishing type：Research paper (scientific journal) Publisher：Springer Science and Business Media LLC
Epidemiological studies have reported that the frequency of nuclear cataracts (NUCs) is high among the elderly and in tropical countries. Ultraviolet (UV) irradiation and lens temperature are considered as key physical contributors, although their precise quantification is difficult. The aim of this study is to investigate the association of NUC prevalence with UV irradiation and heat load. First, we assessed the lens temperature using thermodynamic modeling considering the thermophysiological response. We then conducted a multivariate linear regression analysis for the epidemiological analysis of NUC prevalence across five cities. A strong correlation was observed between NUC prevalence and the combined effects of UV irradiation and cumulative equivalent minutes at 43 °C (CEM43°C) derived from the computed lens temperature (adjusted R2 = 0.933, p < 0.0001). Heat load significantly contributed to the prevalence at 52%, surpassing the contributions of UV irradiation (31%) and the decline in DNA repair capacity in the lens (17%). These results suggested that both UV radiation and heat load are associated with NUC, with heat load contributing more. Our findings provided important implications for future interventions, particularly in the context of global warming.
DOI： 10.1007/s11356-023-31079-2
Other Link： https://link.springer.com/article/10.1007/s11356-023-31079-2/fulltext.html
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Excessive whole-body exposure to 28 GHz quasi-millimeter wave induces thermoregulation accompanied by a change in skin blood flow proportion in rats Reviewed
E. Ijima, S. Kodera, A. Hirata, T. Hikage, A. Matsumoto, T. Ishitake, and H. Masuda
Frontiers in Public Health 11 1225896 2023.09
Language：English Publishing type：Research paper (scientific journal)
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Population-level immunity for transient suppression of COVID-19 waves in Japan from April 2021 to September 2022 Reviewed
S. Kodera, H. Ueta, T. Unemi, T. Nakata, A. Hirata
Vaccines 11 ( 9 ) 1457 2023.09
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)
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Calculation of electric field induced in the human body for simultaneous exposure to spatially uniform ELF electric and magnetic fields with a phase difference Reviewed
Y. Sekiba, S. Kodera, K. Yamazaki, A. Hirata
IEEE Acccess 11 95455 - 95466 2023.09
Language：English Publishing type：Research paper (scientific journal)
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Computation of whole-body average SAR in realistic human models from 1 to 100 GHz Reviewed International coauthorship
S. Kodera, K. Taguchi, Y. Diao, T. Kashiwa, and A. Hirata
IEEE Transactions on Microwave Theory and Techniques 2023.09
Authorship：Lead author, Corresponding author Language：English Publishing type：Research paper (scientific journal)
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Computer-aided fast brain function mapping by transcranial magnetic stimulation
K. Hikita, K. Iijima, S. Kodera, S. Ueno, A. Hirata
URSI GASS 2023 2023.08
Language：English Publishing type：Research paper (international conference proceedings) Publisher：URSI GASS
