Zobrazeno 1 - 10
of 251
pro vyhledávání: '"Youki OSE"'
Publikováno v:
Journal of Environmental Science and Health . Part A: Environmental Science and Engineering and Toxicology. 28:821-837
Humic substances were ozonated and subjected to the mutagenicity assay with Salmonella typhimurium TA 98 and 100. Both of ozonated humic substances and their dichloromethane extracts were not mutagenic. Then, ozonated humic substances were chlorinate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d3215ddabf0a568256b3c2bfd80561b9
https://doi.org/10.1080/10934529309375914
https://doi.org/10.1080/10934529309375914
Autor:
Youki Ose, Yoshitada Yoshioka
Publikováno v:
Environmental Toxicology & Water Quality. 8:87-101
A quantitative structure—activity relationship study is carried out with use of the toxicity (LC50) of the various kinds of fish obtained from the references. The equation obtained contained the parameters of molecular weight (MW) and mean ionizati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::270a0d6c83c0815bc978cf243e2c4056
https://doi.org/10.1002/tox.2530080109
https://doi.org/10.1002/tox.2530080109
Autor:
Yoshinao Kano, Nobuyuki Futaedani, Norito Watanabe, Youki Ose, Ryozo Funasaka, Hisamitsu Nagase, Takahiko Sato
Publikováno v:
The Science of The Total Environment. 128:13-20
The fate and chemical forms of lime after application in an aquatic environment were studied for the duration of 12 weeks. In freshwater, critical compounds were CaCO3 and Ca(OH)2; relative composition of CaCO3 in precipitants was increasing between
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d34062f26a5befb4a33eb92dc110b7cf
https://doi.org/10.1016/0048-9697(93)90176-7
https://doi.org/10.1016/0048-9697(93)90176-7
Autor:
Hiroaki Matsuda, Youki Ose, Katsumi Sumida, Hisamitsu Nagase, Hideaki Kito, Takahiko Sato, Hidetomo Yamamori
Publikováno v:
Water Science and Technology. 25:363-370
Eight structural components of humic substances were ozonated. Mutagenicity was found on TA 100 with and without S9 mix for allthe ozonated components. Aldehydes, ketones and carboxylic acid were identified as the ozonation products from p-hydroxyben
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33a5efab2d5f9b831f60ced5af7c0a94
https://doi.org/10.2166/wst.1992.0314
https://doi.org/10.2166/wst.1992.0314
Autor:
Ryouzou Funasaka, Nobuyuki Futaedani, Youki Ose, Hisamitsu Nagase, Takahiko Sato, Masahide Yamada, Yoshinao Kano, Norito Watanabe
Publikováno v:
The Science of The Total Environment. 116:137-144
Sediment oxygen consumption was measured using a continuous flow-through system before and after the application of lime-based material onto the surfacial sediment. Lime-based amendments including quick-lime, calcium hydrate, a mixture of calcium hyd
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44a800fac5809c9c43ea2190a0fc08a6
https://doi.org/10.1016/0048-9697(92)90369-4
https://doi.org/10.1016/0048-9697(92)90369-4
Publikováno v:
The Science of The Total Environment. 116:1-13
Components of humic substances, such as vanillin, syringaldehyde, vanillic acid and di- n -butylphtalate, were ozonated and subjected to the mutagenicity assay using Salmonella typhimurium TA 98 and 100 with and without S9 mix. The strong mutagenic a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb1c6637f46593f52f4737216e251326
https://doi.org/10.1016/0048-9697(92)90361-u
https://doi.org/10.1016/0048-9697(92)90361-u
Publikováno v:
The Science of The Total Environment. 103:141-149
p-Hydroxybenzaldehyde, a component of soil humic substances, was ozonated and chlorinated. The ether extract and the residue were subjected to the Ames assay; mutagenic activities were identified. The non-ionic resin CSP800 and the anion exchange res
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd19190106e113250351e9a7e2b24918
https://doi.org/10.1016/0048-9697(91)90140-a
https://doi.org/10.1016/0048-9697(91)90140-a
Publikováno v:
Applied Organometallic Chemistry. 5:83-90
The methylation of heavy-metal compounds (e.g. mercury, lead, tin) in the environment has great significance owing to the much higher toxicity of their methyl derivatives in comparison with inorganic metal species. In this paper abiological methylati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::235ea62c01d7dbfa3d5c38bab9e2c51e
https://doi.org/10.1002/aoc.590050204
https://doi.org/10.1002/aoc.590050204
Autor:
Hideaki Kito, Hisamitsu Nagase, Yoshitada Yoshiokat, Tetsuo Hamasaki, Youki Ose, Takahiko Sato
Publikováno v:
Applied Organometallic Chemistry. 5:91-97
The LC50 values of a series of 29 organotin compounds were determined for the red killifish (Oryzias latipes) according to an OECD test guideline. Their toxicities varied from 10−1 to 10−5 mmol dm−3 in five orders of magnitude. In this paper a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f172da839757d845802834fcae80071
https://doi.org/10.1002/aoc.590050205
https://doi.org/10.1002/aoc.590050205
Publikováno v:
Mutation Research/Genetic Toxicology. 241:283-290
The mechanism of antimutagenicity of water extracts of grass-wrack pondweed (Potamogeton oxyphylus Miquel), curled pondweed (Potamogeton crispus L.) and smartweed (Polygonum hydropiper L.) towards benzo[a]pyrene mutagenicity in Salmonella typhimurium
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da61a70be47850581f682c5bc0153950
https://doi.org/10.1016/0165-1218(90)90026-x
https://doi.org/10.1016/0165-1218(90)90026-x