Výsledky vyhledávání - "Ayumi Hashiguchi"

Akademický článek

Evaluation of the Degradation Performance of Pharmaceuticals in Environmental Water by Multi-wavelength UV Irradiation and the Estimation of their Degradation Pathways

Autor: Ayumi Hashiguchi, Hitoshi Kaneko, Shogo Taniguchi, Yuto Tada, Klon D.C. Hinneh, Shinya Echigo, Hideaki Nagare

Publikováno v: Journal of Water and Environment Technology, Vol 22, Iss 2, Pp 100-112 (2024)

UV-LEDs are a promising technology to degrade pharmaceuticals in water. However, to consider the installation of a UV-LED system to actual treatment systems, the degradation by-products of pharmaceuticals, their toxicities, and their degradation path

Externí odkaz: https://doaj.org/article/da9ee08184fd4563a88382cf35ee4216

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Akademický článek

Increased Prorenin Expression in the Kidneys May Be Involved in the Abnormal Renal Function Caused by Prolonged Environmental Exposure to Microcystin-LR

Autor: Yuuka Hitsuda, Yoshihito Koto, Hideaki Kawahara, Koichi Kurata, Keisuke Yoshikiyo, Kohji Nishimura, Ayumi Hashiguchi, Hideaki Maseda, Kunihiro Okano, Norio Sugiura, Kazuya Shimizu, Hidehisa Shimizu

Publikováno v: Toxics, Vol 12, Iss 8, p 547 (2024)

Toxic algae in eutrophic lakes produce cyanotoxic microcystins. Prior research on the effect of microcystin-LR in the kidney utilized intraperitoneal injections, which did not reflect natural exposure. Oral microcystin-LR research has focused on rena

Externí odkaz: https://doaj.org/article/c4e259b651ce4474b3e7ed55fe0b44ca

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Akademický článek

Microcystin-LR incorporated into colonic cells through probenecid-sensitive transporters leads to upregulated MCP-1 expression induced by JNK activation

Autor: Yoshihito Koto, Hideaki Kawahara, Koichi Kurata, Keisuke Yoshikiyo, Ayumi Hashiguchi, Kunihiro Okano, Norio Sugiura, Kazuya Shimizu, Hidehisa Shimizu

Publikováno v: Toxicology Reports, Vol 9, Iss , Pp 937-944 (2022)

Harmful algae that inhabit eutrophic lakes produce cyanotoxic microcystins. Therefore, the relationship between chronic exposure to microcystins via drinking water and organ disorders has been investigated. The present study aimed to determine whethe

Externí odkaz: https://doaj.org/article/d8c78e6edc7d4852a55b738833fe9239

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Stochastic optimization of a mixed moving average process for controlling non-Markovian streamflow environments

Autor: Hidekazu Yoshioka, Tomohiro Tanaka, Yumi Yoshioka, Ayumi Hashiguchi

We investigated a cost-constrained static ergodic control problem of the variance of measure-valued affine processes and its application in streamflow management. The controlled system is a jump-driven mixed moving average process that generates real

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1049ed9a8593bb2cf74866cccd2e94f1
http://arxiv.org/abs/2210.00747

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Modeling and computation of an integral operator Riccati equation for an infinite-dimensional stochastic differential equation governing streamflow discharge

Autor: Hidekazu Yoshioka, Motoh Tsujimura, Tomohiro Tanaka, Yumi Yoshioka, Ayumi Hashiguchi

We propose a linear-quadratic (LQ) control problem of streamflow discharge by optimizing an infinite-dimensional jump-driven stochastic differential equation (SDE). Our SDE is a superposition of Ornstein-Uhlenbeck processes (supOU process), generatin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6ec0753888202c03502d62cee444de68
http://arxiv.org/abs/2204.05716

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