Search Results - "Takasu, Hiroyuki"

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  1. 1

    Nutrient regeneration from riverine high-molecular-weight dissolved organic matter through marine bacterial decomposition in a eutrophic coastal system: The Ariake Sea, Japan by Takasu, Hiroyuki, Uchino, Koji

    Published in Journal of sea research (01-11-2021)
    “…Because riverine dissolved organic matter (DOM) has been considered less bioavailable to coastal bacteria than marine DOM produced by marine phytoplankton,…”
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  2. 2

    High contribution of picophytoplankton to phytoplankton biomass in a shallow, eutrophic coastal sea by Takasu, Hiroyuki, Ikeda, Mana, Miyahara, Kotaro, Shiragaki, Tomohiro

    Published in Marine environmental research (01-02-2023)
    “…We explored picophytoplankton in the surface (0 m) and bottom (2.3–8.7 m) layers of a shallow (<10 m) eutrophic coastal system (Isahaya Bay, Japan). We found…”
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  3. 3

    Contribution of riverine dissolved organic carbon to organic carbon decomposition in the Ariake Sea, Japan, a coastal area suffering from summer hypoxia by Takasu, Hiroyuki, Okamura, Tomohiro, Komorita, Tomohiro, Shiragaki, Tomohiro, Uchino, Koji

    Published in Aquatic sciences (01-01-2023)
    “…Dissolved organic carbon (DOC) comprises nearly half of the riverine organic carbon flux into oceans. Although riverine DOC is involved in numerous important…”
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  4. 4

    Tetracycline Resistance Genes Persist at Aquaculture Farms in the Absence of Selection Pressure by Tamminen, Manu, Karkman, Antti, Lõhmus, Andres, Muziasari, Windi Indra, Takasu, Hiroyuki, Wada, Shigeki, Suzuki, Satoru, Virta, Marko

    Published in Environmental science & technology (15-01-2011)
    “…The prophylactic and therapeutic use of tetracyclines in aquaculture has been shown to contribute to the spread of tetracycline resistance in the environment…”
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  5. 5

    Urea is a potentially important nitrogen source for phytoplankton during red tide formation in Isahaya Bay, Japan by Takasu, Hiroyuki, Miyake, Yujin, Shiragaki, Tomohiro, Yasui, Mai, Ito, Maiko, Sakata, Haruna, Tajiri, Yutaro

    Published in Journal of oceanography (01-06-2022)
    “…Isahaya Bay in Japan has suffered from severe red tides. A previous study reported that red tides continued under dissolved inorganic nitrogen (DIN) depleted…”
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  6. 6

    Microbial communities on flower surfaces act as signatures of pollinator visitation by Ushio, Masayuki, Yamasaki, Eri, Takasu, Hiroyuki, Nagano, Atsushi J., Fujinaga, Shohei, Honjo, Mie N., Ikemoto, Mito, Sakai, Shoko, Kudoh, Hiroshi

    Published in Scientific reports (03-03-2015)
    “…Microbes are easily dispersed from one place to another and immigrant microbes might contain information about the environments from which they came. We…”
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  7. 7

    Influence of River Inflow and Microbial Activity on Distribution of Dissolved Organic Carbon in the Northern Part of Ariake Sea, Kyushu, Japan by Uchino, Koji, Mori, Koichiro, Fukushima, Natsu, Takasu, Hiroyuki

    “…To identify the factors controlling the distribution of dissolved organic carbon (DOC) in the northern Ariake Sea (Japan), we measured DOC, salinity and…”
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  8. 8

    Lower Eyelid Reconstruction Using a Myotarsocutaneous Flap while Considering the Superior and Inferior Palpebral Sulci by Takasu, Hiroyuki, Yagi, Sasagu, Taguchi, Sawa, Furukawa, Soichi, Ono, Nao, Shimomura, Yutaka

    “…Various reconstructive procedures have been reported for full-thickness defects of the lower eyelid after tumor excision or trauma. In eyelid reconstruction,…”
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  9. 9

    Distribution of the Harmful Bloom-Forming Cyanobacterium, Microcystis aeruginosa, in 88 Freshwater Environments across Japan by Kataoka, Takafumi, Ohbayashi, Kako, Kobayashi, Yuki, Takasu, Hiroyuki, Nakano, Shin-ichi, Kondo, Ryuji, Hodoki, Yoshikuni

    Published in Microbes and Environments (2020)
    “…Microcystis aeruginosa was quantitatively surveyed in 88 freshwater environments across Japan within 3‍ ‍weeks in 2011. In order to clarify the distribution…”
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  10. 10

    Surgical resection of intraorbital metastasis of a gastrointestinal stromal tumor resistant to chemotherapy by Mikuni, Masanori, Wakuta, Makiko, Masaki, Tatsuya, Hirose, Yoshinobu, Takasu, Hiroyuki, Kawano, Hiroo, Aoki, Ren, Ota, Manami, Kimura, Kazuhiro

    “…We present a case of a gastrointestinal stromal tumor (GIST) metastasis of the rectal primary resisting chemotherapy to the right orbit 15 years after excision…”
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  11. 11

    External Ear Melanoma Treated with Auricular Reconstruction Using Four Different Tissues in a 16-Year-Old Patient by Takasu, Hiroyuki, Yagi, Sasagu, Taguchi, Sawa, Furukawa, Soichi, Ono, Nao, Nakahama, Miyako, Shimomura, Yutaka

    “…The auricular region is a common site of cutaneous malignancies, most of which are nonmelanoma skin cancers, such as basal cell carcinoma and squamous cell…”
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  12. 12

    High Proline Content of Bacteria-Sized Particles in the Western North Pacific and Its Potential as a New Biogeochemical Indicator of Organic Matter Diagenesis by Takasu, Hiroyuki, Nagata, Toshi

    Published in Frontiers in Marine Science (16-12-2015)
    “…Amino acid (AA) compositions were determined for bacteria-sized particles and particulate organic matter (POM) collected in offshore regions of the western…”
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  13. 13

    Two-way Revascularization to Manage Celiac Artery Stenosis during Pancreaticoduodenectomy: A Case Report by Takasu, Hiroyuki, Kuramoto, Yasuyo, Yokoyama, Shigekazu, Ota, Hideo, Yagi, Sasagu, Hisamoto, Sawa, Furukawa, Soichi, Shimomura, Yutaka

    “…Celiac artery (CA) occlusion, or stenosis, is not uncommon, and most cases are asymptomatic. If the CA is occluded, collateral circulation from the superior…”
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  14. 14

    Anatoxin-a-producing Raphidiopsis mediterranea Skuja var. grandis Hill is one ecotype of non-heterocytous Cuspidothrix issatschenkoi (Usačev) Rajaniemi et al. in Japanese lakes by Hodoki, Yoshikuni, Ohbayashi, Kako, Kobayashi, Yuki, Takasu, Hiroyuki, Okuda, Noboru, Nakano, Shin-ichi

    Published in Harmful algae (01-01-2013)
    “…► Anatoxin-a-producing strains of Raphidiopsis mediterranea were reevaluated. ► Most of the strains were non-heterocystous Cuspidothrix issatschenkoi. ► The…”
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  15. 15

    Protistan grazing and viral lysis losses of bacterial carbon production in a large mesotrophic lake (Lake Biwa) by Takasu, Hiroyuki, Kunihiro, Tadao, Nakano, Shin-ichi

    Published in Limnology (01-08-2014)
    “…The grazing and lysis mortalities of planktonic bacteria were estimated using the modified dilution method and respiratory quinone (RQ) analysis in mesotrophic…”
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  16. 16

    Estimation of carbon biomass and community structure of planktonic bacteria in Lake Biwa using respiratory quinone analysis by Takasu, Hiroyuki, Kunihiro, Tadao, Nakano, Shin-ichi

    Published in Limnology (01-08-2013)
    “…The relationship between bacterial respiratory quinone (RQ) concentration and biomass was assessed for Lake Biwa bacterial assemblages to evaluate the utility…”
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  17. 17

    Effect of water-surface discharge on the inactivation of Bacillus subtilis due to protein lysis and DNA damage by Kadowaki, K.(Ehime Univ., Matsuyama (Japan)), Sone, T, Kamikozawa, T, Takasu, H, Suzuki, S

    “…The effect of water-surface discharge on the inactivation of Bacillus subtilis ATCC6633 in water was examined by using a very short high-voltage pulse…”
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  18. 18

    Effects of TiO2 and ZnO nanoparticles on the growth of phytoplankton assemblages in seawater by Takasu, Hiroyuki, Nakata, Kotaro, Ito, Maiko, Yasui, Mai, Yamaguchi, Masahiro

    Published in Marine environmental research (01-01-2023)
    “…Compounds in sunscreen such as ultraviolet (UV) filters protect human skin from damage caused by UV radiation exposure. However, sunscreen components reach…”
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  19. 19

    Lability of sedimentary organic nitrogen estimated from amino acids in a reservoir on land reclaimed from Isahaya Bay, Kyushu, Japan by Takasu, Hiroyuki, Era, Tomoya, Miyahara, Kotaro, Ito, Maiko

    Published in Limnologica (01-05-2024)
    “…In 1997, the inner part of Isahaya Bay on the west coast of the Ariake Sea was separated from the sea by dikes, leading to the formation of a freshwater…”
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  20. 20

    Response of zooxanthellate scleractinian corals to elevation of seawater temperature during summer in a temperate Japanese coastal sea (Takashima, Japan) by Kato, Sho, Ito, Maiko, Miyahara, Kotaro, Fukumura, Manabu, Komura, Shuzo, Yamaguchi, Masahiro, Takasu, Hiroyuki

    Published in Marine ecology (Berlin, West) (01-08-2024)
    “…In contrast to tropical and subtropical regions, where coral abundance is declining due to elevated summer seawater temperatures, expansions of coral ranges…”
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