Zobrazeno 1 - 10
of 116
pro vyhledávání: '"Keisuke Fukushi"'
Autor:
Enkhuur Munkhsuld, Takehiko Murayama, Keisuke Fukushi, Shigeo Nishikizawa, Baasansuren Gankhurel, Tserenkhand Batbold, Altansukh Ochir
Publikováno v:
Discover Environment, Vol 2, Iss 1, Pp 1-21 (2024)
Abstract The Erdenet mine (Erdenet, Mongolia) is a copper–molybdenum open pit mine with a huge tailing pond and is located next to a residential area. As the sources of drinking water in this area rely on groundwater and can be categorized into pub
Externí odkaz:
https://doaj.org/article/43895a85ceb942d08482def671c1f339
Autor:
Takahiro Ikari, Yukihiro Furusawa, Yoshiaki Tabuchi, Yusuke Maruyama, Atsuhiko Hattori, Yoichiro Kitani, Kenji Toyota, Arata Nagami, Jun Hirayama, Kazuki Watanabe, Atsushi Shigematsu, Muhammad Ahya Rafiuddin, Shouzo Ogiso, Keisuke Fukushi, Kohei Kuroda, Kaito Hatano, Toshio Sekiguchi, Ryotaro Kawashima, Ajai K. Srivastav, Takumi Nishiuchi, Akihiro Sakatoku, Masa-aki Yoshida, Hajime Matsubara, Nobuo Suzuki
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-12 (2023)
Abstract Deep ocean water (DOW) exerts positive effects on the growth of marine organisms, suggesting the presence of unknown component(s) that facilitate their aquaculture. We observed that DOW suppressed plasma cortisol (i.e., a stress marker) conc
Externí odkaz:
https://doaj.org/article/38fb3aaf0f874f8d8bc913ee83bdbb63
Dark microbiome and extremely low organics in Atacama fossil delta unveil Mars life detection limits
Autor:
Armando Azua-Bustos, Alberto G. Fairén, Carlos González-Silva, Olga Prieto-Ballesteros, Daniel Carrizo, Laura Sánchez-García, Victor Parro, Miguel Ángel Fernández-Martínez, Cristina Escudero, Victoria Muñoz-Iglesias, Maite Fernández-Sampedro, Antonio Molina, Miriam García Villadangos, Mercedes Moreno-Paz, Jacek Wierzchos, Carmen Ascaso, Teresa Fornaro, John Robert Brucato, Giovanni Poggiali, Jose Antonio Manrique, Marco Veneranda, Guillermo López-Reyes, Aurelio Sanz-Arranz, Fernando Rull, Ann M. Ollila, Roger C. Wiens, Adriana Reyes-Newell, Samuel M. Clegg, Maëva Millan, Sarah Stewart Johnson, Ophélie McIntosh, Cyril Szopa, Caroline Freissinet, Yasuhito Sekine, Keisuke Fukushi, Koki Morida, Kosuke Inoue, Hiroshi Sakuma, Elizabeth Rampe
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-14 (2023)
Unique microorganisms of a fossil river delta in the Atacama Desert unveil the current limits of life detection on Mars.
Externí odkaz:
https://doaj.org/article/d8adfcfd4b3a42e28f372d250a3bbaaf
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-11 (2019)
Gale Crater on Mars has been demonstrated to have once hosted water, but its chemistry is still under debate. Here the authors use mineralogical rock compositions and show the once saline character of Gale Crater—a result of warmer climate periods
Externí odkaz:
https://doaj.org/article/366a18d70a044a16aea4f6cd62882998
Autor:
Ariunsanaa Baterdene, Seiya Nagao, Baasanjav Zorigt, Altansukh Ochir, Keisuke Fukushi, Davaadorj Davaasuren, Baasansuren Gankhurel, Enkhuur Munkhsuld, Solongo Tsetsgee, Ariuntungalag Yunden
Publikováno v:
Water, Vol 14, Iss 12, p 1916 (2022)
This is the first seasonal observation study on nutrient dynamics undertaken in a small freshwater lake with eutrophication in Mongolia. The vertical profile and seasonal fluctuation of nutrients are crucial to understanding the biogeochemical cycles
Externí odkaz:
https://doaj.org/article/9cca510591f04cbb836a7750c3434a8a
Autor:
Uyangaa Udaanjargal, Noriko Hasebe, Davaadorj Davaasuren, Keisuke Fukushi, Yukiya Tanaka, Baasansuren Gankhurel, Nagayoshi Katsuta, Shinya Ochiai, Yoshiki Miyata, Tuvshin Gerelmaa
Publikováno v:
Geosciences, Vol 12, Iss 1, p 7 (2021)
To understand how the climate system works in the continental interior, sediment cores that are approximately 30-cm long were taken from Olgoy, Boontsagaan, and Orog lakes, Mongolia. These cores were analyzed and compared with meteorological data (ai
Externí odkaz:
https://doaj.org/article/e461bb9a31f24719910e129d7cc8bcec
Autor:
Natsumi Noda, Shohei Yamashita, Yoshio Takahashi, Megumi Matsumoto, Yuma Enokido, Kana Amano, Takahiro Kawai, Hiroshi Sakuma, Keisuke Fukushi, Yasuhito Sekine, Tomoki Nakamura
Publikováno v:
Minerals, Vol 11, Iss 11, p 1244 (2021)
Ferrous saponite is a secondary mineral that can be used to reveal the redox state of past aqueous environments on Mars. In mineralogical analyses for ferrous saponite formed in laboratory simulations or contained in future returned samples from Mars
Externí odkaz:
https://doaj.org/article/6b4c33dbf2c7472cb4f2c04fae993a61
Autor:
Keisuke Fukushi, Eigo Imai, Yasuhito Sekine, Takuma Kitajima, Baasansuren Gankhurel, Davaadorj Davaasuren, Noriko Hasebe
Publikováno v:
Minerals, Vol 10, Iss 8, p 669 (2020)
The nature of mineral precipitations in terrestrial alkaline soda lakes provides insights into the water chemistry of subsurface oceans on icy bodies in the outer solar system. Saturation analyses of terrestrial alkaline lakes have shown that the sol
Externí odkaz:
https://doaj.org/article/258d8550264f42e09f88bdb2ddbe392f
Publikováno v:
Minerals, Vol 10, Iss 4, p 346 (2020)
Monohydrocalcite (MHC) is a metastable hydrous calcium carbonate that requires Mg in the mother solution during formation in the laboratory. MHC prepared by previously reported methods always contains a large amount of Mg (Mg/Ca ratio up to 0.4) beca
Externí odkaz:
https://doaj.org/article/07ff4773556b423fa7da21a3139ebe22
Autor:
Tsetsgee Solongo, Keisuke Fukushi, Ochir Altansukh, Yoshio Takahashi, Akitoshi Akehi, Gankhurel Baasansuren, Yunden Ariuntungalag, Odgerel Enkhjin, Boldbaatar Davaajargal, Davaasuren Davaadorj, Noriko Hasebe
Publikováno v:
Minerals, Vol 8, Iss 7, p 288 (2018)
Rivers and ponds near the Erdenet mine, one of the world’s largest copper-molybdenum mines, exhibit high concentrations of molybdenum (Mo). This study evaluates the distribution and chemical speciation of Mo in surface sediments from ponds and rive
Externí odkaz:
https://doaj.org/article/25612c188de247a585957d732fda7b12